ML042510590

Yankee Nuclear Plant Site, Historical Site Assessment, Yankee Atomic Electric Company, Volume II

ML042510590
Person / Time
Site:	Yankee Rowe
Issue date:	01/21/2004
From:	Yankee Atomic Electric Co
To:	NRC/FSME
References
-RFPFR, BYR 2004-006
Download: ML042510590 (365)

Text

Yankee Nuclear Plant Site Historical Site Assessment Yankee Atomic Electric Company Volume 11

Historical Site Assessment and Classification Summary Survey Area Name: Sherman Reservoir Sediments Designator: OOL-01 Survey Area Description Survey area OOL-0l consists of sediment on the bottom of Sherman Reservoir and contains about 60270 square meters of surface area.

Survey area OOL-01 is bounded by non-impacted property owned by US Gen. on the north, OOL-15 on the east, OOL-13 and OOL-03 on the south and OOL.03 on the west.

Sub-surface systems that traverse or connect within OOL-01 include:

• The east storm drain system

• The circulating water system intake.

• The circulating water system discharge.

Items of note located within or adjacent to OOL-O1 include:

• Wheeler brook outflow

• The 10' diameter circulating water intake pipe

• The circulating water discharge structure, Seal Pit, (OMB-06)

• The Sherman Hydro-electric Station inlet structure

• The Sherman Dam spillway.

Page 1 of 5

Historical Site Assessment and Classification Summary Survey Area Name: Sherman Reservoir Sediments Designator: OOL-01 Survey Area History Sherman Reservoir provided the cooling water to the YNPS steam condensers through the circulating water system and was the source of water for the plant service water system. It was also the source of water for the fire protection system and provided raw water feedstock to the water treatment facility to be processed into primary grade (de-mineralized) water.

Water was discharged back to OOL.01 from the service water system through the circulating water system. The permitted monitored radioactive liquid release pathway was through the service water system to the circulating water system and then to Sherman Reservoir. Survey area OODl01 is potentially impacted as a result of this release pathway, depositing radioactivity in the sediment layer at the bottom of the reservoir.

At present the permitted monitored radioactive liquid release pathway is through the ASWS, which discharges into the Seal Pit, OMB-06.

Contamination of survey area OOL-01 may have resulted from run-off of low levels of radioactive contamination present on the yard area surface into the east storm drain system, which discharges into OOL-01. Additionally low levels of surface contamination that migrated out of the RCA along the railroad tracks may have washed into OOL,01 in the area of Wheeler Brook.

Events and activities that lead to the contamination of survey area OOL,0 1 include:

• AOR 66-07, Spent Fuel Pit Water Spill (Ref 1)

• AOR 66-09, Hose Failure (Fuel Chute Pump-back System draining in progress) (Ref 2)

• PIR 81-09 Contamination of the Yard Area during Reactor Head Removal.

(Ref 3)

Translocation Pathways Modes and vectors of contamination migration associated with OOL,01 are limited to receipt only. It is not likely that any radioactive contamination in OOL,01 would spread beyond the bounds of OOL-01.

Modifications to the YNPS site and surrounding environs include:

• Raising the height of Sherman Dam and spillway.

• Change to the layout of the east storm drain system, which diverted the east storm drain flow into OOL-0 1.

• Washout and repair of the Wheeler Brook railroad crossing.

Page 2 of 5

Historical Site Assessment and Classification Summary Survey Area Name: Sherman Reservoir Sediments Designator: OOL01 Scoping/Characterization Sherman Reservoir sediment sample analysis has identified Co-60 present in sediment at concentrations that represent a small fraction of DCGL. (Ref 4 & 5)

Decommissioning No decommissioning activities have been performed for survey area OOL-01.

Page 3 of 5

Historical Site Assessment and Classification Summary Survey Area Name: Sherman Reservoir Sediments Designator: OOL-01 Findings Survey area OOL-01 is a land area that is located beyond the bounds of the site boundary.

Survey area OOL-01 is impacted and contains locations known to have contained radioactivity at levels at a small fraction of DCGL.

The radionuclide mix likely to be present in OOL-01 includes all radionuclides identified in the radioactive systems of the plant (Ref 6). The primary radionuclides of concern for survey area OOL-0I are Co-60, Cs-137, Ag-108m, Sr-90 and tritium.

Current Status OOL-01 continues to be potentially impacted by radioactive material migration due to surface run-off, monitored permitted release of radioactive liquids and by decommissioning activities.

A sediment sample location map (Figure 2) has been prepared to show the distribution of sampling locations in OOL-01. Only samples representative of sediments still present are included on the map. One survey media was assessed in OOL-01, Sediment. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the sediment DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL,01 is presented at the end of Table 1 for each survey medium. The results are summarized below.

Sediment: Mean SOF is 0.098.

Maximum SOF for a single sediment sample is 0.287. (key# 3441) a short distance offshore from the discharge of the East Storm drains.

Minimum SOF for a single sediment sample is 0.004. (key# 2968) on the shoreline just west of Wheeler Brook.

Classy(ication Statement Based upon the historical use and radiological conditions associated with this survey area OOL-01 is identified as a Class 3 Area.

Page 4 of 5

Historical Site Assessment and Classification Summary Survey Area Name: Sherman Reservoir Sediments Designator: OO=-01 Drawings 9699-FB-A2, Storm and Sanitary Sewers Underground.

9699-FC-53A, Seal Pit Concrete Details Figure 7- 1A References

1. Abnormal Occurrence Report (AOR) 66-07, Spent Fuel Pit Water Spill, dated September 27, 1966.

2. AOR 66-09, Plastic Garden Hose Failure, dated November 1, 1966.

3. Plant Information Report (PIR) 81-09, dated June 12, 1981.

4. '"Deerfield River Sediment Screening Study," by F.X. Bellini, dated October 2000.

5. DESD-TD-YR-01-001, "Deerfield River Sediment Screening Study: Follow-Up Assessment," by F.X. Bellini, dated March 2001.

6. "Radionuclides for Building Surfaces and Soil DCGL Determinations," YA-REPT-00-001-03.

Page 5 of 5

Page I of 2 Table 1 Sum of Fractions OOL-O1 -- Sediment Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 3451 Dl 4258 0.044 3091 SE547 SE547 0.015 3090 SE545 SE545 0.035 3088 SE543 SE543 0.098 2968 24A G25677 0.004 2967 24 G25676 0.034 3440 C2 4266 0.013 3464 GI 4265 0.191 3438 B4 4263 0.076 3463 F4 4261 0.083 3458 E4 4216 0.069 3459 E5 4259 0.062 3442 CV1 29934 0.069 3452 D2 4257 0.099 3441 C3 4256 0.287 3465 G2 4255 0.248 3456 E2 4254 0.129 3470 H4 4235 0.127 3457 E3 4227 0.092 3453 D3 4226 0.071 3434 A4 4225 0.138 3431 Al 4224 0.217 3462 F3 4260 0.082 3437 B3 4181 0.107 3468 H2 4197 0.233 3469 H3 4196 0.218 3467 HI 4195 0.114

Page 2 of 2 Table 1 Sum of Fractions OOL-O1 -- Sediment Yankee Nuclear Power Station Rowe, MA Station Key Station Sample EID Sum Of Fractions 3466 G4 4194 0.009 3461 F2 4193 0.092 3460 Fl 4192 0.207 3455 El 4191 0.258 3439 Cl 4190 0.151 3436 B2 4189 0.009 3092 SE548 SE548 0.011 3435 BI 4186 0.130 3093 SE549 SE549 0.004 3454 D4 4178 0.126 3450 CV9 29942 0.094 3449 CV8 29941 0.035 3448 CV7 29940 0.131 3447 CV6 29939 0.004 3446 CV5 29938 0.024 3445 CV4 29937 0.015 3444 CV3 29936 0.042 3443 CV2 29935 0.043 3471 H5 4198 0.048 3432 A2 4188 0.196 Min 0.004 Max 0.287 Mean 0.098

Table 2 Page 1 of 1 Statistical Data Summary - OOL-O1 -- Sediment Yankee Nuclear Power Station Rowe, MA Parameter Units #Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 5 5 0.683 0.159 0.522 0.904 0.718 AcTh-228 pCi/g 41 42 1.337 0.380 0.537 2.230 1.380 Ag-108m pCi/g 1 5 0.029 0.029 0.029 0.029 Ag-I lOnm pCi/g 0 7 0.000 Am-241 pCi/g 0 5 0.000 Ba-140 pCi/g 0 2 0.000 Be-7 pCi/g 0 2 0.000 Bi-212 pCi/g 3 3 0.683 0.004 0.678 0.685 0.684 Bi-214 pCi/g 4 4 0.404 0.121 0.265 0.555 0.397 Ce-141 pCi/g 0 2 0.000 Ce-144 pCi/g 0 7 0.000 Co-57 pCi/g 0 2 0.000 Co-58 pCi/g 1 7 0.029 0.029 0.029 0.029 Co-60 pCi/g 9 19 0.177 0.226 0.042 0.764 0.087 Cr-51 pCi/g 0 2 0.000 Cs-134 pCi/g 1 16 0.044 0.044 0.044 0.044 Cs-137 pCi/g 47 48 0.922 0.679 0.052 3.030 0.874 Fe-59 pCi/g 0 7 0.000 1-131 pCi/g 0 2 0.000 1-133 pCi/g 0 2 0.000 K-40 pCi/g 47 48 17.590 2.755 11.900 23.800 17.700 Mn-54 pCi/g 2 16 0.043 0.018 0.030 0.056 0.043 Mo-99 pCi/g 0 2 0.000 Nb-95 pCi/g 0 5 0.000 Np-239 pCi/g 0 4 0.000 Pb-212 pCi/g 5 5 0.570 0.189 0.386 0.890 0.520 Pb-214 pCi/g 5 5 0.407 0.048 0.362 0.475 0.403 Ra-226 pCi/g I 1 1.785 1.785 1.785 1.785 Ru-103 pCi/g 0 7 0.000 Ru-106 pCi/g 0 7 0.000 Sb-124 pCi/g 0 7 0.000 Sb-125 pCi/g 0 1 0.000 Se-75 pCi/g 0 2 0.000 Sr-90 pCi/g 10 10 0.188 0.079 0.070 0.330 0.190 Tel-132 pCi/g 0 2 0.000 Tl-208 pCi/g 4 4 0.635 0.146 0.525 0.847 0.585 Zn-65 pCi/g 0 7 0.000 Zr-95 pCi/g 1 7 0.085 0.085 0.085 0.085

Page I of 1 Table 3 Summary of Detected Results Above Criteria OOLO1 -- Sediment Yankee Nuclear Power Station Rowe, MA DCGLSediment

1. Sample - Criterion' # Detects Above Maximum Parameter # Detects' Results Concentration Units Criterion Detecte d Ac-228 5 I 5 pCi/g

• 0.90 AcTh-228 41 42 pCi/g 2.23 Ag-108m I 5 8.52 pci/g 0.03 Ag-l I Om 0 7 pCi/g Am-241 0 5 44.35 pCi/g Ba- 140 0 2 pCilg Bc-7 0 2 pCi/g Bi-212 3 3 pCi/g 0.69 Bi-214 4 4 pCi/g 0.56 Ce- 141 0 2 pci/g Ce- 144 0 7 pCi/g Co-57 0 2 pCilg Co-58 1 7 pCi/g 0.03 Co-60 9 19 4.84 pCi/g 0.76 Cr-51 0 2 pCi/g Cs-134 1 16 6.71 pci/g 0.04 Cs-137 47 48 12.24 pCi/g 3.03 Fe-59 0 7 pci/g 1-131 0 2 pCi/g 1-133 0 2 pCi/g K-40 47 48 pCi/g 23.80 Mn-54 2 16 21.66 pCi/g - 0.06 Mo-99 0 2 pci/g Nb-95 0 5 pCi/g Np-239 0 4 pCi/g Pb-212 5 5 pCi/g 0.89 Pb-214 5 5 pci/g 0.47 Ra-226 I I pCi/g 1.79 Ru-103 0 7 *pCi/g Ru-106 0 7 68.21 pci/g Sb-124 0 7 *pCi/g Sb-I 25 0 I 37.73 pCi/g Se-75 0 2 pci/g Sr-90 10 10 pCi/g 0.33 Tel-132 0 2 pCi/g TI-208 4 4 *pci/g 0.85 Zn-65 0 7 pCi/g Zr-95 1 7 pCilg 0.08

. . 11. -

Table 4 Page I of 7 Rad OOL Sediment (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) CV1 (3442) CV2 (3443) CV3 (3444) CV4 (3445) CV5 (3446) CV6 (3447) CV7 (3448)

Sample ID 29934 29935 29936 29937 29938 29939 29940 Date Sampled 6/17/1996 6/17/1996 6/17/1996 6/17/1996- 6/17/1996 6/17/1996 6/17/1996 Ac-228 AcTh-228 1.66 -1.2 1.61 1.02 1.07 1.61 Ag-108m Ag-110m Am-241 Ba-140 Be-7 Bi-212 Bi-214 Ce-141 Ce-144 Co-57 Co-58 Co-60 0.04210.003 U -0.031 U 0.02 U -0.024 U 0.152 Cr-51 Cs-134 0.008 U 0.006 U 0.01 U 0.007 U 0.0441-0.013 U 1-0.025 U Cs-137 0.734 0.509 0.515 0.149 0.217 0.052 0.894 Fe-59 1-131 1-133 K-40 19 16.1 18.1 16.1 17.1 21.4 Mn-54 -0.005 U 0.03 -0.029 U 0.056 -0.004 U -0.017 U -0.018 U Mo-99 Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 Sr-90 0.07 Tel-132 TI-208 Zn-65 Zr-95 SOF 0.069 0.043 0.042 0.015 0.024 0.004 0.131 J

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 7 Rad OOL Sediment (pCitg)

Yankee Nuclear Power Station Rowe, MA Station (Key) CV8 (3449) CV9 (3450) D4 (3454) B3 (3437) IB1 (3435) A2 (3432) B2 (3436) -

Sample ID 29941 29942 4178  : :4181 4186 14188 4189 Date Sampe 6/17/1996 . 6/17/1996 9/25/1995 9/211/1995 19i2611995 - 9126/1995 9/2611995 Ac-228 AcTh-228 1.41 i! 1.65 1.68 1.51 1.21 1.52 0.537 Ag-108m Ag-110m Am-241 Ba-140 Be-7 Bi-212 Bi-214 Ce-141 Ce-144 Co-57 Co-58 Co-60 0.024 U 0.073 0.0963 Cr-51 Cs-134 -0.039 U 0.022 U Cs-137 0.426 0.649 1.54 1.07 1.59 1.26 0.106 Fe-59 1-131 1-133 K-40 16.3 18.3 21.5 18 16.1 19.9 13.3 Mn-54 0.024 U -0.045 U Mo-99 Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 Sr-90 0.07 0.25 TeI-132 TI-208 Zn-65 Zr-95 SOF S

' 0.035 &

0.094 A.

0.126 S 0.107 a 0.13 I 0.196 a 0.009 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

A Table 4 Page 3 of 7 Rad OOL Sediment (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) IC1 (3439) El (3455) FF1 (3460) F2 (3461) G4 (3466) HI (3467) H3 (3469) 1 H2 (3468)

'U)

Sample ID 4190 *14191 4192 4193 4194 4195 4196 4197 Date Sampled 9/2611995.. 9/26/1995 19/26/1995 9/26/1995 9/26/1995 9/26/1995 9/26/1995 9/26/1995 Ac-228 AcTh-228 1.02 1.43 1.05 1.96 0.881 1.2 1.49 1.44 Ag-108m Ag-110mn Am-241 Ba-140 Be-7 Bi-212 Bi-214 Ce-141 Ce-144 Co-57 Co-58 Co-60 0.087 Cr-51 Cs-134 Cs-137 0.803 1.93 1.66 1.13 0.112 1.4 1.8 1.35 Fe-59 1-131 1-133 K-40 17.1 21.5 14.7 21.4 13.2 16.5 18.9 19.6 Mn-54 Mo-99 Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 Sr-90 0.231 0.22 0.19 0.19 0.33 Tel-132 TI-208 Zn-65 Zr-95 SOF 0.151A. 0.258 A. 0.207 A. 0.092 A. 0.009 A. 0.114 A. 0.218 A. 0.233 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 4 of 7 Rad OOL Sediment (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) H5 (3471) E4 (3458) ' RSS-3 (3472) Al '(3431) A4 (3434) D3 (3453) -, E3 (3457)

Sample ID ' 4198:- 4216 ' 4222 - 4224' - 4225 'I- ; 4226 - - 4227 Date Sampled 912611995 10/4/1995 : 10/4/1995 : 10/411995 10/4/1995 1015/1995 10/5/11995 Ac-228 AcTh-228 0.992 1.17 0.724 1.52 1.24 1.17 Ag-108m Ag-110m Am-241 Ba-140 Be-7 Bi-212 Bi-214 Ce-141 Ce-144 Co-57 Co-58 Co-60 Cr-5I Cs-134 Cs-137 0.585 0.839 1.93 0.909 0.874 1.12 Fe-59 1-131 1-133 K40 16.7 17.7 13.8 18.9 18.4 16.4 18.4 Mn-54 Mo-99 Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 Sr-90 O.i6 0.17 Tel-132 Tl-208 Zn-65 Zr-95 SOF 0.0481 0.069 0.217 0.138 ' 0.071 0.092 U-not detected (value is not greater than 2 sigma); UM-nondetect (value' is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

U Table 4 Page 5 of 7 Rad OOL-OI- Sediment (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) H4 (3470) E2 (3456) G2 (3465) C3 (3441) D2 (3452) DI (3451) E5 (3459)

Sample ID 4235 4254 : 4255 4256 4257 - 4258 4259 Date Sampled 10/6/1995 10/16/1995 10/16/1995 10/16/1995 10/16/1995 10/16/1995 10/16/1995 Ac-228 AcTh-228 1.81 1.59 1.9 1.96 1.73 1.19 0.938 Ag-108m Ag-I lOm Am-241 Ba-140 Be-7 Bi-212 Bi-214 Ce-141 Ce-144 Co-57 Co-58 Co-60 0.764 Cr-51 Cs-134 Cs-137 1.56 1.58 3.03 1.58 1.21 0.534 0.755 Fe-59 1-131 1-133 K-40 18 21.3 22 21.4 17.7 18.7 15.4 Mn-54 Mo-99 Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 Sr-90 Tel-132 TI-208 Zn-65 Zr-95 SOF 0.127 0.129 0.248 0.287 0.099 0.044 0.062

'U U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 6 of 7 Rad OOL Sediment (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) F3 (3462) F4 (3463) B4 (3438) G1 (3464) 1C2 (3440) A3 (3433) 24 (2967)

SampleID 4260 4261 4263 4265 4266 - 6000 1G25676 Date Sampled 10/17/1995 10/17/1995 10/17/1995 10/17/1995 10/17/1995 9/25/1995 l 10/5/1995 Ac-228 AcTh-228 1.14 1.38 1.43 2.23 0.736 0.00000131 U 0.773 Ag-108m Ag-110in 0.003 U Am-241 Ba-140 0U Be-7 0.12 U Bi-212 Bi-214 Ce-141 -0.001 U Ce-144 0.025 U Co-57 -0.0109 U Co-58 -0.0104 U Co-60 0.000000134 U 0.08 Cr-51 0.028 U Cs-134 -0.045 U Cs-137 0.998 1.01 0.925 2.34 0.162 0.00000125 U 0.215 Fe-59 -0.028 U 1-131 0.018U 1-133 OU K-40 19.1 20.8 17.6 23.81 11.9 0.0000169 U 14.29 Mn-54 -0.0077 U Mo-99 0.24 U Nb-95 Np-239 0.23 U Pb-212 Pb-214 Ra-226 Ru-103 -0.0091 U Ru-106 -0.085 U Sb-124 0.004 U Sb-125 Se-75 0.001 U Sr-90 Tel-132 0.04 U TI-208 Zn-65 0.05 U Zr-95 0.021 U SOF 0.082 0.083 0.076 0.191 'I 0.013 0.034 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)'

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 7 of 7 Rad OOL Sediment (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 24A (2968). SE543 (3088) SE545 (3090) - SE547 (3091) ' SE548 (3092) SE549 (3093)

.1 11--

Sample ID G25677 SE543 ' , SE545 SE547; SE548 SE549 Date Sampled 10/5/1995 8/25/1998 [8/25/1998 [8/25/1998 8/25/1998 8/25/1998 -'

Ac-228 0.5356 0.7177 0.9042 0.5222 0.7371 AcTh-228 1.029 Ag-108m -0.01328 U -0.01249 U 0.01985 U 0.0289 -0.01324 U Ag-I 10mi -0.003 U -0.0293 U -0.0101 U -0.007838 U -0.009124 U -0.02358 U Am-241 0U OU OU OU OU Ba-140 0.029 U Be-7 0.15 U Bi-212 0.678 0.6844 0.6852 Bi-214 0.3684 0.2648 0.5554 0.4254 Ce-141 -0.003 U Ce-144 0.015 U 0.01684 U -0.0554 U -0.2732 U 0.05027 U 0.02012 U Co-57 0.002 U Co-58 -0.005 U -0.02563 U 0.02908 0.004945 U -0.01065 U 0.01614 U Co-60 0.006 U 0.2156 0.083361-0.01223 U 0.0178 U 0.003778 U Cr-51 -0.001 U Cs-134 0.011 U -0.09058 U -0.007984 U -0.04795 U -0.01236 U -0.004422 U Cs-137 0.055 0.6582 0.2229 0.1853 0.08889 0.05397 Fe-59 -0.036 U -0.05086 U -0.04353 U -0.02342 U -0.009414 U -0.03942 U 1-131 0.012 U 1-133 0U K-40 13.78 16.24 14.11 16.43 12.98 16.82 Mn-54 0.002 U -0.03833 U 0.02567 U -0.006144 U 0.02954 U 0.01416 U Mo-99 0.35 U Nb-95 0.02155 U 0.007489 U 0.01193 U 0.02522 U 0.01934 U Np-239 -0.06 U -0.5805 U -1.908 U Pb-212 0.3863 0.5198 0.89 0.5393 0.514 Pb-214 0.4325 0.4033 0.4746 0.3644 0.3618 Ra-226 1.785 Ru-103 0.022 U -0.03179 U 0.003116 U -0.02832 U 0.01939 U 0.01567 U Ru-106 -0.05 U -0.07429 U -0.08905 U 0.2628 U 0.104 U 0.1132 U Sb-124 OU 0.02074 U 0.001695 U -0.03833 U OU 0.003013 U Sb-125 -0.1106 U Se-75 0.001 U Sr-90 Tel-132 -0.05 U TI-208 0.5583 0.5245 0.847 0.6111 Zn-65 0.043 U 0.03902 U -0.06571 U -0.1284 U -0.07788 U -0.1691 U Zr-95 OU -0.01029 U 0.0849 0.06487 U -0.01224 U -0.04548 U SOF 0.004 0.098 0.035 0.015 0.0 11 0.004

' )

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Historical Site Assessment and Classification Summary Survey Area Name: YNPS Non-Rad Yard Area Designator: 00102 Survey Area Description .

Survey area OOL-02 consists of the non.RCA~portion of the YNPS site inside the security fence, which is owned by YAEC. Survey area OOL.02 contains about 7134 square meters of soil, asphalt and concrete of surface area.

Survey area OOL-02 is bounded by survey areas OOIrO4 and 00oL03;property-owned by US Gen. on the north, OOL-12 on the east, OMB-04, SVC-03, SVC-O1, TBN-O1, OOL-10 and OOL-08 on the south and OOL-06 on the west.

Sub-surface systems that traverse or connect within OOL-02 include:

• The east and west storm drain systems

• The 6irculating water'system

• Service water system

' Auxiliary' Service Water System.'

• Abandoned street lighting electrical cable.

• Floor and equipment drains from the turbine building and service building

• Sanitary, sewers

• Electrical grounding cables

• Electrical duct trays

• Potable water lines

• Security lighting electrical conduits.

Items of note located within or adjacent to OOL-02 include:

• Concrete support pads at the former location of the a temporary office structure

• Aprons at garage and sliding doors of OMB-04

• Former location of the volleyball court located north of the warehouse.

• A portion of the onsite railroad spur line running from the northeast corner of

+the service building west into the east end of the turbine building

• Aprons and stoops at the service building doorways .

• Flood control berm at Sherman Dam connecting the turbine building to Sherman Dam. - - -

• Asphalt over concrete walkway to the front office

• Asphalt over concrete walkway to the gatehouse

• Former location of the station switchyard

• Secondary Side Switchboard for on site power.'

• - Temiporary office trailers.' '

Pagel of 7

U Historical Site Assessment and Classification Summary Survey Area Name: YNPS Non-Rad Yard Area Designator: OOL-02 Survey Area History Survey area 00L-02 represents the primary travel path for personnel and material entering and leaving the YNPS site.

Systems present in survey are OOL-02 that contain residual radioactivity include the service water discharge, circulating water discharge, the ASWS discharge piping and the.

east and west storm sewers.

Survey area OOL-02 was not used for storing radioactive material or processing radioactive waste.

Contamination of survey area OOL-02 may have resulted from run-off of low levels of radioactive contamination present on the RCA yard area surface. or as a result of traffic of contaminated personnel, equipment and material. Contaminated material inadvertently released from the RCA and temporarily stored in OOL.02 may have contributed to contamination of OOL-02.

Events and activities that lead to the contamination of survey area OOL-02 include:

PIR 75-07, (Ref 1) Yard Area Contamination describes contamination location adjacent to the volleyball court. The volley ball court was located northwest of OMB-04 A temporary office building was set in place on concrete peers north of OMB-04. The present location of the non-contaminated construction spoils generated during construction of the temporary office building is thought to be within the SCF area (OOL-

09) of the site (Ref 2).

TranslocationPathways Modes and vectors of contamination transmigration include:

• Contaminated material transport within the OOL-02 typically involved moving contaminated equipment'and tools by vehicle from the east side of the RCA around to the west side of the RCA.

• Surface water run-off resulting from rain and snowmelt is likely to have transported surface contamination into storm drains and/or into in low areas where it would collect. There are six storm drain system inputs located in OOL,02, one to the east storm drain system and 5 to the west storm drain system. Surface water collects in a low point located north of the front office and turbine building in OOL,02. Otherwise due to the slope of OOL,02 surface water run-off occurs in the direction of OOL,03, OOL-04, OOL-06, OOL-12 and OOL,13.

Page 2 of 7

Historical Site Assessment and Classification, Summary Survey Area Name: YNPS Non-Rad Yard Area  : Designator: 00 L02 Site modifications performed within survey area OOL-02 include:

• Raising the elevation of Sherman Dam Re-location of the security perimeter fence

• Set-up of the temporary office building

• Installation of the security lighting and camera system Modifications performed 'at the YNPS site in support of decommissioning that changed the configuration of OOL-02 include:

• Mass Electric power line tie-in

• Installation of the ASWS Scoping/Characterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan (Ref 3).

Additional scoping survey data was collected in support of the construction activities performed in OOL-02 in support of decommissioning. -'  ;

Decommissioning '

No decommissioning activities have been performed for survey area 00O02.

. I. ...

Page 3 of 7

I Historical Site Assessment and Classification Summary Survey Area Name: YNPS Non-Rad Yard Area Designator: 00L-02 Findings Survey area OOL,02 is a land area that is located within the bounds of the non-RCA portion of the site.

Survey area OOL-02 is impacted with locations likely to contain radioactivity concentrations at a small fraction of DCGL.

The radionuclide mix likely to be present in OOL-02 includes all radionuclides identified in the radioactive systems of the plant (Ref 4). The primary radionuclides of concern for survey area OOL-02 are Co-60, Cs-137, Ag-108m, Sr-90, and tritium.

CurrentStatus OOL-08 continues to be potentially impacted by radioactive material migration due to surface run-off from within the RCA, radioactive material packaging and transport and by decommissioning activities.

A soil sample location map (Figure 9) has been prepared to show the distributionof sampling locations in OOL,08. Only samples representative of soils still present are included on the map (samples of soils representative of soils removed during remediation activities are not presented). Four survey media types were assessed in OOL.08, Humus, Sod, Sediment and Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL.

There are separate sets of Tables 1-4 for each survey media. All are evaluated as fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL-08 is presented at the end of Table I for each survey medium. The results are summarized below.

Humus: Mean SOF is 0.098.

Maximum SOF for a single humus sample is 0.114 (key#383) located up slope south of Wheeler Brook east of the power line.

Minimum SOF for a single humus sample is 0.066 (key#374) located outside the exclusion area fence.

Page 4 of 7

Historical Site Assessment and Classification Summary Survey Area Name: YNPS Non-Rad Yard Area Designator: OOL-02 Sediment: Mean SOF is 0.040.

Maximum SOF for a single sediment sample is 0.061 (key#628) located northeast of the front office building.

Minimum SOF for a single sediment sample is 0.018 (key#651) located northeast of the front office building.

Sod: Mean SOF is 0.040.

Maximum SOF for a single sod sample is 0.061 (key#628) located northeast of the front office building.

Minimum SOF for a single sod sample is 0.018 (key#651) located northeast of the front office building.

Soil: Mean SOF is 0.018.

Maximum SOF for a single soil sample is 0.045 (key#290) located at the southwest corner of the former switchyard.

Minimum SOF for a single soil sample is 0.002 (key#936, 3349) located behind the security trailer, located northeast of the turbine building.

Page of 7

Historical Site Assessment and Classification Summary Survey Area Name: YNPS Non-Rad Yard Area Designator: OOL-02 Classification Statement Based upon the historical use and radiological conditions associated with this survey area OOL-02 is identified as a Class 3 Area.

Page 6 of 7

Historical Site Assessment and Classification Summary Survey Area Name: YNPS Non-Rad Yard Area ' Designator: OOL-02 Drawings 9699-FC-61A 9699-FE-25A 9699-FE-43A 9699-FP- 121 Figure 7-lA References

1. Plant Information Report (PIR) 75-07, dated August 12, 1975.

2. "Summary of-Excavation Volumes for.YNPS Construction Performed During the Time Period of Plant Operation," dated October 1997.

3. YNPS Decommissioning Plan, Rev. 0.0.

4. "Radionuclides for Building Surfaces and Soil DCGL Determinations," YA-REPT-00-001-03.

Page 7 of 7

Underground Systems OOL-02 Structure/System I Component l Description l Location I Impacted?

Storm Drains & ECB-001 depth = 5'10"; dia. 4', 2' at top; no ladder access; -5' N x -18' W of NE corner of Sewers 16" PACM going -60' N then -75' E to Discharge Service bldg 003 at Sherman Res., 16" corr pipe going -130' S to ECB-002; concrete bottom; good condition MH-8 8" & 12" pipes going -100' N to middle of dam manhole on north edge of Service road, then 8" going -55' W to meet pipe from bIdg -40' E of Turbine bldg WCB-012 and 12" going -205' W going to WCB-017 WCB-003 goes -5' N to tie into line between WCB-002 and at SE comer of Security bldg WCB-004 WCB-004 depth = 90"; 4' dia at base, 2' at top; ladder just east of security bldg at corner access; 20" corr pipe 64" from top going -155' W of security fence to WCB-002, 18" corr pipe 59" from top going

-55' E to WCB-015, 18" corr pipe 25" from top going -135' S to WCB-005; concrete bottom; good condition WCB-012 depth = 5'9"; 4' dia at base, 2' at top; no ladder -35' N and -5' W of NE corner of access; 10" corr pipe 35" from top going -55' N Turbine bldg then -45' WNW then -100' WSW to WCB-014, 8" corr pipe 34" from top going -35' S to Turbine Bldg; concrete bottom; good condition  :.

WCB-013 depth = 6'; 4' dia at base, 2' at top; no ladder -50' N and -65' W of NE corner of access; 12" corr pipe 33" from top going -90' Turbine bldg WNW to WCB-014; concrete bottom; good condition WCB-014 depth = 42"; 4'x4' at base, 17"x17" at top; no -38' N and -25' E of NW corner of ladder access; 12" corr pipe 18" from top going Office bIdg

-90' ESE to WCB-013, 12" corr pipe 22" from top going -85' SW to WCB-015; concrete bottom;

,good condition Page 1 of 4

(_

a

Q.~ Underground Systems OOL-02 Structure ISystem Component Description Location impacted?

WCB-015 depth 12'; 4' dia at base,2' at top; ladder access; -39' W and -15' S of NW corner of 18" pipe 8'4" from top going -55' W to WCB-003, Office bldg 12" corr pipe 6'6" from top going -45' N to WCB-016,12" corr pipe 6'4" from top going -85' NE to WCB-014,18" pipe 8'9" from top going -190' S to WCB-01 1; concrete bottom; good condition WCB-016 depth = 42"; 4'x4' at base, 17"x17" at top; no -39' W and -40' N of NE corner of

_ ladder access; 18" corr pipe 16" from top going Office bldg

-45' S to WCB-015; concrete bottom; good condition -

Security Diesel Fuel Oil Tank 510 gal 48" dia x 5'5" long tank; buried 3' below below ground just east of security surface in 6'x7'9" pit; surrounded by sand backfill diesel bldg and under electrical

.p anels Sewers from the Service bldg north wall at a point -47.5' Sl - -47.5' E and -75' N of NW E of the TB going N -75' to manhole'SI (buried?) comer of SB; S2 - -20' W and -55' thern'gbing WNW -165' to manhole S2 (buried?); N of NE corner of TB fromthe TB north wall at a point -20' W of the NE comer going N -55' to manhole S2 Aux. Service Water ASWS electric and from Al going SW -20' then S -135' (and under Al - -35' N of NE corner of SB System water wrehouse) to manhole A2 (buried)' addition Abandoned Street electric cable from a point on the west side of the road -90' E of L5 - -15' W and -20' N of NE SB Lighting the'gatehouse'going S; also from -same point addition going E -140' to a point -5' W and -17' N of NE corner of 'Office bldg; from here branching with'

one branch going NNE the'other branch going ESE'-120' then curving N and E and corntinuing E

-105' to lightpole L5 then going S -'140' and -

under the SB to an' end Page 2 of 4

Underground Systems OOL-02 Structure / System Component Description Location Impacted?

Water from OOL-10 continuing north to a tee (WI) 6' WI - -6' S and -65' W of SW south of line of south wall of Office bldg, north to a corner of Office bldg; W2 - -72' N reducer west of the SW corner of the Office bldg, and -65' W of NW corner of Office then a 2" line continuing north to a tee (W2) -13' bldg; W4 - -42' N and -12' W of north of line of north wall of Office bldg then north NE corner of Office bldg; W5 - -63' to a reducer at a point on the north side of the N of NE corner of TB; W6 - -8' E roadway by the north security fence (53' north of of W5; W7 - -48' N and -45' E of Office bldg) then continuing N into OOL-04; from NW corner of SB; WI33 -

tee WI going E to NW corner of TB; from tee W2 going W to gatehouse from N wall of SVC-03 N -40' then WNW -80' to tee W7 then -40' to tee W6 then -8' to W5 then generally W in a gradual arc -110' to tee W4 then W -95' to a point -24'W and -50' N of NW corner of Ofice bldg, then S -65' to tee W13 then S

-227' to NW corner of Si bldg; also from tee W7 SSW -40' to hose house; also from tee W6 SW

-30' then S -40' to TB; also from tee W5 NE

-110' to Screenwell; also from tee W4 curving N and W -140' to tee W3 which has one short branch to the N and capped and the other branch S to tee W2; also from tee W13 W -20' to hose house'

,Page3of4 (1-9

( Underground Systems

(

OOL-02 Structure / System Component Description Location Impacted?

Security Lighting underground from the security diesel W and around the NE HH1/1A - -80' E of gatehouse; cables comer of the gatehouse; from the security diesel HH2 - -80' E and -37' N of NE E -50' to handhole (HH) 1 & 1A; from HH1 & comer of gatehouse; HH3 - -25'N HHIA N -40' to HH2; from HH2 W -20' to and -65' E of NE corner of Office camera pole, E -212' to HH3; from HH3 NE -20' bldg; HH4 - -47' N and -3' E of NE to camera pole, from HH3 N then NE to HH12; comer of SB; HH5 - -55' N and from HH3 ESE -200' to HH4; from HH4 N -80 to -45W of NE corner of warehouse pole 4, from HH4 ENE -30' to security fence, from HH4 S -50' to NE comer of SB, from HH4 SSE -65' to camera pole, from HH4 ESE -133' to HH5; from HH5 ESE -160' to camera pole, from HH5 S -80' to HH6; from HH1 & IA S -240' to HH7 Electrical duct trays depth=3' from a point -10' W of NE corner of TB going NE E2 - -30' S of Se comer of 10'6" -115' to manhole El then NE -40' to screenwell; gatehouse; E4 - -17W and -27' N from the center of the south wall of the gatehouse of SW corner of TB going SE -42' to manhole E2 then S -65' then E

-67' meeting; from -40' N of NE corner of gatehouse going S -90' then SE -90' then curving towards the E -30' meeting; -20' N of meeting going S to meeting all joined then going E -90' to manhole E4; from E4 S -40' to Si bIdg & N -40' to W side of TB; from -30 N of SW corner of TB going W -100' then NW -130' to SE corner of gatehouse Waste Oil Storage tank 64" dia. x 12'; top of tank -24" underground -4' from north wall of SB In front of I___ Iclean maintenance shop Page 4 of 4

Page l ofr Table 1 Sum of Fractions' OO1,02 -- Asphalt Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 2998 AS99.45 AS99.45B 0.004 2997 AS98.52 AS98.52B 0.014 2996 AS98.51 AS98.511B 0.013 2991 AS97.01 AS97.01 B 0.062 2991 AS97.01 AS97.01A 0.055 Min 0.004 Max 0.062 Mean 0.030

( ( (

Table 2 Page l ot I Statistical Data Summary - OOLW02 -- Asphalt Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCilg 12 12 0.338 0.088 0.170 0.479 0.345 Ag-108m pCilg 1 12 0.027 0.027 0.027 0.027 Ag- lOnm pCi/g 0 12 0.000 Am-241 pCilg 0 12 0.000 Ba-140 pCi/g 0 1 0.000 Bi-212 pCilg 2 3. 0.607 0.037 0.581 0.634 0.607 Bi-214 pCilg 9 9 0.385 . 0.078 0.291 0.549. 0.375 Ce-144 pCilg 0 12 0.000 Co-58 pCilg 0 14 0.000 Co-60 pCi/g 3 14 0.206 0.136 0.051 0.301 0.267 Cs-134 pCilg 1 14 .0.070 0.070 0.070 0.070 Cs-137 pCi/g 2 14 0.040 0.008 0.035 0.046 0.040 Eu-152 pCi/g 0 1 0.000 Fe-59 pCilg 0 12 0.000 K-40 pCi/g 12 12 9.418 1.720 7.044 12.610 9.172 Mn-54 pCilg 0 12 0.000 Nb-94 pCilg 0 1 0.000 Nb-95 pCi/g 0 12 0.000 Np-239 pCi/g 1 3 0.120 0.120 0.120 0.120 Pb-212 pCilg 12 12 0.378 0.118 0.154 0.492 0.420 Pb-214 pCilg 12  : 12 - 0.345 0.037 0.278 0.396 0.355 Ra-226 pCilg 4 6 0.928 0.030 0.888 0.959 0.932 Ru-103 pCilg 1 12 0.050 0.050 0.050 0.050 Ru-106 pCilg 0 12 0.000 Sb-I 24 pCi/g 0 12 0.000 Se-75 pCilg 0 1 0.000 TI-208 pCi/g 10 10 0.360 0.078 0.183 0.477 0.365 Zn-65 pCilg 0 12 0.000 Zr-95 pCi/g 0 12 0.000

Page l or I Table 3 Summary of Detected Results Above Criteria OOL-02 -- Asphalt Yankee Nuclear Power Station Rowe, M1A DCGLLAsphalt j

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ac-228 pCilg 0.48 Ag-108m 8.52 pCilg 0.03 Ag- lOnm pCilg Am-241 44.35 pCilg Ba- 140 pCilg Bi-212 pCilg 0.63 Bi-214 pCilg 0.55 Ce- 144 pCilg Co-58 pCilg Co-60 4.84 pCi/g 0.30 Cs-134 6.71 pCilg 0.07 Cs-137 12.24 pCilg 0.05 Eu- 152 12.06 pCi/g Fe-59 pCi/g K-40 pCi/g 12.61 Mn-54 21.66 pCi/g Nb-94 8.53 pCi/g Nb-95 pCilg Np-239 pCi/g 0.12 Pb-212 pCi/g 0.49 Pb-214 Ra-226 pCi/g pCi/g 0.40 0.96

'U>

Ru- 103 pCilg 0.05 Ru- 106 68.21 pCi/g Sb-124 pCi/g Se-75 pCilg TI-208 pCilg 0.48 Zn-65 pCilg Zr-95 pCilg

Table 4 Page 1 of 3 Rad OOL-02 - Asphalt (pCilg)

Yankee Nuclear Power Station Rowe, 'MA Station (Key) AS97.01 (2991) AS97.01 (2991) AS97.01 (2991) AS98.51 (2996) AS98.51 (2996)

Sample ID AS97.01A AS97.01B AS97.01C A598.51A . AS98.51B Date Sampled 10/28/1998 10/28/1998 10/28/1998 ' 11/3/1998 11/3/1998 Ac-228 0.2661 0.4106 0.333 0.386 0.3183 Ag-108m' - -0.00453 U - -0.013 14 U 0.002659 U 0.01403 U -0.0003583 U' Ag- 10m 0.01398 U 0.01239 U 0.01781 U -0.01701 U 0.007095 U Am-241 0U 0U OU 0U 0U Ba-140 Bi-212 0.5808 Bi-214 0.375 0.4532 0.5485 0.291 Ce-144 -0.14 U -0.1669 U 0.09983 U - -0.001219 U - 0.0438 U Co-58 ' -0.01402 U 0.001889 U -0.008444 U -0.006313 U 0.001747 U Co-60 0.2667 0.3011 0.02218 U - 0.03128 U 0.05063 Cs-134 -0.1139 U 0.002136 U -0.08946 U -0.07282 U  : -0.01898 U Cs-137 0.02127 U 0.61014 U -0.009605 U -0.003323 U 0.03494 Eu-152 0.4224 U Fe-59 0.08478 U -0.002173 U -0.03087 U' -0.02747 U 0.01938 U K40 11.49 8.371 7.044 9.584 8.269 Mn-54 -0.02625 U -0.01067 U -0.003143 U -0.00574 U -0.01538 U Nb-94 Nb-95 -0.02915 U 0.02664 U -0.02533 U ' 0.02274 U -0.01147 U Np-239 0.1341 U 0.1195 Pb-212 0.4046 0.1595 0.3449 0.4644 0.3091 Pb-214 0.3672 0.3806 0.3597 0.3297 0.3024 Ra-226 0.8884 0.6226 U Ru-103 0.05023 0.005089 U 0.01517 U 0.02 U ' -0.001798 U Ru-106 -0.1993 U 0.1706 U 0.02848 U -0.02754 U -0.04827 U Sb-124 0.02458 U 0.03758 U -0.04305 U - 0U 0.003875 U Se-75 0.1193 U Tl-208 0.3333 0.3246 0.357 0.3425 Zn-65 -0.1458 U -0.01456 U ' 0.08173 U -0.1064 U -0.08717 U Zr-95 0.03153 U 0.02388 U -0.03014 U, -0.008785 U -0.009438 U SOF 0.055 0.062 ' 0.013 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Asphalt Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 3 Rad OOL-02 - Asphalt (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) AS98.51 (2996) AS98.52 (2997) AS98.52 (2997) AS98.52 (2997) AS99.45 (2998) )

Sample ID AS98.51C AS98.52A AS98.52B AS98.52C AS99.45A Date Sampled 11/3/1998 11/10/1998 11/10/1998 11/10/1998 7/7/1999 Ac-228 0.3571 0.4786 0.4006 0.415 0.297 Ag-108m 0.01342 U -0.004625 U 0.02726 -0.008164 U 0.01734 U Ag-110m 0.00165 U -0.02653 U 0.03586 U 0.004087 U 0.002804 U Am-241 0U 0U 0U OU 0U Ba-140 0.04949 U Bi-212 49.86 U Bi-214 0.3415 0.3775 0.4135 0.3267 0.3363 Ce-144 -0.05591 U -0.001756 U 0.1016 U 0.03657 U -0.1425 U Co-58 -0.01625 U -0.01483 U -0.008409 U -0.01897 U -0.01526 U Co-60 0.02391 U -0.01721 U 0.01075 U 0.02201 U -0.01667 U Cs-134 -0.04189 U -0.1638 U 0.07046 0.00821 U -0.06404 U Cs-137 0.02759 U 0.02632 U 0.01979 U -0.002562 U 0.006294 U Eu-152 Fe-59 0.0 1669 U -0.04247 U -0.02743 U -0.0455 U 0.02495 U K-40 9.075 9.268 12.61 11.31 10.35 Mn-54 -0.01189 U 0.0 1795 U 0.005025 U 0.009891 U -0.005962 U Nb-94 0.01141 U Nb-95 0.01067 U 0.02261 U -0.01359 U 0.007833 U 0.007659 U Np-239 0.1282 U Pb-212 0.3625 0.4558 0.4824 0.4347 0.4671 Pb-214 0.2781 0.3962 0.3568 0.3525 0.3468 Ra-226 0.9413 0.7162 U 0.9591 0.9234 Ru-103 -0.002091 U 0.005726 U -0.001145 U 0.003562 U -0.001779 U Ru-106 -0.09122 U 0.005491 U 0.06149 U 0.0739 U -0.1431 U Sb-124 0U -0.0329 U -0.01152 U 0U OU Se-75 Tl-208 0.4772 0.3985 0.431 0.3736 Zn-65 -0.004422 U 0.06419 U 0.002123 U -0.05498 U 0.06148 U Zr-95 -0.01213 U -0.01878 U -0.005906 U -0.007871 U -0.01473 U SOF 0.014 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Asphalt Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 3 of 3 Rad OOL-02 AAsphalt (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) AS99.45 (2998) AS99.45 (2998) IA-4 (622) IA-6 (626)

Sample ID AS99.45B AS99.45C IAAS-4 IAAS-6 Date Sampled 7/7/1999 7/711999 5/21/1993 5/21/1993 Ac-228 0.2264 - - 0.1695 Ag-108Im -0.00697 U . 0.0157 U Ag-110mn 0.0276 U 0.005158 U Am-241 0U 0U Ba-140 Bi-212 0.6338 Bi-214 Ce-144 -0.007862 U -0.0227 U Co-58 -0.00919 U -0.005543 U 0.061 UM 0.048 UM Co-60 0.007222 U -0.00438 U 0.0772 UM 0.0862 UM Cs-134 -0.01496 U 0.01061 U 0.065 UM 0.049 UM Cs-137 0.0459 -0.01302 U 0.0946 UM 0.0677 UM Eu-152 Fe-59 0.00255 U 0.01609 U K-40 8.201 7.444 Mn-54 0.0183 U 0.0009925 U Nb-94 Nb-95 -0.01776 U 0.02044 U Np-239 Pb-212 0.4915 0.1536 Pb-214 0.3755 0.2928 Ra-226 Ru-103 0.009111 U -0.01159U Ru-106 0.1015 U -0.04198 U Sb-124 -0.02718 U 0U Se-75 Tl-208 0.3835 0.1832 Zn-65 -0.1298 U -0.09247 U Zr-95 -0.005227 U 0.005563 U SOF 0.004 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Asphalt Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Pagel of I Table I Sum of Fractions 00U02 -- Humus Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 363 OF-196 OFTZ-1 96 0.125 357 OF- 189 OFTZ-1 89 0.160 Min 0.125 Max 0.160 IMean 0.143 U

Q ( c Table 2 - Page I of I Statistical Data Summary - OOL.2 -- Humus Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ag-108m pCi/g 0 2 0.000 Co-58 pCi/g 0 2 0.000 Co-60 pCilg 0 2 0.000 Cs-I 34 pCi/g 0 2 0.000 Cs-137 pCi/g 2 2 1.740 0.305 1.524 1.955 1.740 Mn-54 pCi/g 0 2 0.000

-- 0 --

Pagel or I Table 3 Summary of Detected Results Above Criteria OOL,02 -- Humus Yankee Nuclear Power Station Rowe, AIA DCGLHlumus

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ag-108m 0 2 8.52 pCilg 0 Co-58 0 2 pCi/g 0 Co-60 0 2 4.84 pCi/g 0 Cs-134 0 2 6.71 pCi/g 0 Cs-137 2 2 12.24 pCitg 0 1.96 Mn-54 0 2 21.66 pCi/g 0 U

Table 4 Page I of I Rad OOL-02 -- Hunus (pCilg)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-189 (357) OF-196 (363)

Sample ID OFTZ-189. OFTZ-196 Date Sampled 10/13/1994 10/14/1994 Ag-108m 0.101 UM 0.106 UM Co-58 0.115UM 0.137UM Co-60 0.237 UM 0.228 UM Cs-134 0.09 UM 0.1 UM Cs-137 1.955 1.524 Mn-54 0.156 UM 0.098 UM SOF 0.16 0.125 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Humus Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Page I of I Table I Sum of Fractions OO1x02 -- Sod

.Yankee Nuclear Power Station Rowe, MA J Station Key Station Sample ID Sum Of Fractions 628 IA-7 IATZ-7 0.061 651 IA-67 IATZ-67 0.018 Min 0.018 1Max 0.061 Mean 0.040

'U

( ( (

Table 2 Page I of 1 Statistical Data Summary - 00L,02 -- Sod Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum - Median Results Co-58 pCi/g 0 3 0.000 Co-60 pCi/g 0 3 0.000 Cs-I 34 pCilg 0 3 0.000 Cs-137 pCi/g 2 3 0.483 0.371 0.220 0.745 0.483

.. . II . .'

I

Page I Of I Table 3 Summary of Detected Results Above Criteria OL002 -- Sod Yankee Nuclear Power Station Rowe, MA DCGL_Sod J.

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Co-58 0 3 pCi/g 0 Co-60 0 3 4.84 pCi/g 0 Cs-134 0 3 6.71 pCi/g 0 Cs-137 2 3 12.24 pCi/g 0 0.75

Table 4 Page I of I Rad OOL-02 --,Sod (pCi/g)

Yankee Nuclear Pow'er Station Rowe, MA Station (Key) IA-5 (624) IA-67 (651) IA-7 (628)

Sample ID IATZ-5 IATZ-67 IATZ-7 Date Sampled 5/21/1993 6/7/1993 5/21/1993 Co-58 0.098 UM 0.096 UM 0.095 UM Co-60 0.112 UM 0.153 UM 0.136UM'.

Cs-134 0.089 UM 0.078 UM 0.097 UM Cs-137 0. 16 UM 0.22 0.745 SOF - -_.:_

__ 0.018 0.061 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sod Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Page l of 2 Table I Sum of Fractions OOW2 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 277 0G005-008 OGO05GUFDO08 0.041 357 OF-189 OFTS- 189 0.041 290 0G005-022 OGOO5GUFDO22 0.045 282 0G005-013 OGO05GUFDO13 0.007 281 0G005-012 OG005GUFDO12 0.027 280 OGO05-011 OGO05GUFDO1I 0.005 89 OGOOI -005 OGOOIGUFDO05 0.014 278 0G005-009 OGOO5GUFDO09 0.022 419 OF-251 OFTS-251 0.009 276 0G005-007 OGOOSGUFDO07 0.028 275 0G005-006 OGOO5GUFDO06 0.020 94 OGOOI-010 OGOOIGUFD010 0.018 92 OGOOI -008 OGOOIGUFDO08 0.010 91 OGOOI -007 OGOOIGUFDO07 0.005 90 OGOOI -006 OGOOI GUFDO06 0.013 279 0G005-010 OGOO5GUFD010 0.043 JU 940 0G012-028 OGO12GUFDO28 0.008 3404 WSD03 WSSD03 0.036 3351 TS99.53 TS99.53C 0.005 3349 TS99.51 TS99.51C 0.002 3334 TS99.35 TS99.35B 0.004 3334 TS99.35 TS99.35A 0.008 943 0G012-031 OGO12GUFDO31 0.009 361 OF- 192 OFTS- 192 0.010 941 0G012-029 OGO12GUFDO29 0.021 363 OF-196 OFTS- 196 0.043 939 0GO12-027 OGO12GUFDO27 0.026

Page 2 of 2 Table 1 Sum of Fractions OOL-02 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions I' 938 0G012-026 OGO12GUFDO26 * .0.027 936 0G012-024 OGO12GUFDO24 0.002 935 0G012-023 OGO12GUFDO23 0.010 651 IA-67 IATS-67 0.009 3412 YG001.6 YG001.6A 0.016 942 0G012-030 OGO12GUFDO30 0.021 Min 0.002 Max 0.045 Mean 0.018 i..

Table 2 Page I of I Statistical Data Summary - OO.002 -- Soil Yankee Nuclear Power Station Rowe, MIA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCilg 52 52 0.778 0.221 0.164 1.264 0.811 Ag-108m pCi/g 1 58 0.028 0.028 0.028 0.028 Ag- lOm PCi/g 3 52 0.035 0.003 0.033 0.039 0.034 Am-241 pCilg 0 52 0.000 Ba-133 PCi/g 0 2 0.000 Ba-140 pCilg o 1 0.000 Bi-212 PCi/g 41 44 0.869 0.229 0.350 1.331 0.864 Bi-214 PCi/g 49 49 0.467 0.106 0.192 0.768 OA64 Ce-144 PCilg 2 52 0.270 0.051 0.234 0.307 0.270 Co-58 pCilg 0 63 0.000 Co-60 pCi/g 3 63 0.052 0.013 0.039 0.064 0.053 Cr-51 pCilg o 1 0.000 Cs-134 pCilg 2 63 0.038 0.003 0.036 0.040 0.038 Cs-136 pCilg 2 2 0.220 0.140 0.121 0.319 0.220 Cs-137 PCi/g 29 63 0.226 0.158 0.043 0.548 0.193 Eu-152 PCilg 0 5 0.000 Fe-59 pCi/g 0 52 0.000 1-133 pCilg o 1 0.000 K-40 pCilg 51 52 14.981 3.389 3.541 24.080 15.010 Kr-85 pCilg 0 2 0.000 Mn-54 pCilg 5 58 0.039 0.004 0.032 0.041 0.041 Nb-94 pCilg o 1 0.000 Nb-95 pCilg 4 52 0.067 0.029 0.033 0.099 0.068 Np-239 pCilg 0 3 0.000 Pb-212 pCi/g 52 52 0.773 0.196 0.253 1.187 0.790 Pb-214 pCi/g 52 52 0.503 0.117 0.230 0.861 0.506 Ra-226 pCi/g 37 40 1.713 0.602 0.677 3.267 1.569 Ru-103 pCilg 0 52 0.000 Ru-106 pCilg 2 52 0.428 0.167 0.310 0.546 0.428 Sb-1 24 pCilg 0 52 0.000 Sb-125 pCilg 0 9 0.000 Sn-1 13 pCilg 0 1 0.000 TI-208 pCilg 46 46 0.770 0.145 0.408 1.075 0.774 U-235 pCilg 0 1 0.000 Zn-65 pCi/g 1 52 0.082 0.082 0.082 0.082 Zr-95 pCilg 5 52 0.068 0.017 0.053 0.096 0.060 C

Page I of I Table 3 Summary of Detected Results Above Criteria OOL02 -- Soil Yankee Nuclear Power Station Rowe, MA

" - I DCGL_Soil - ^

: .. . .

I Sam'ple Criterion - # Detects ) kbove Maximum Parameter # Detects - Results Concentration - Units ' Criteri ion . Detected Ac-228 52 52 pCi/g 0 1.26 Ag-108m 1 58

• 8.52 pci/g 0 0.03 Ag-l I Om 3 52 0 0.04 An-241 0 52 44.35 0 Ba-133 0 2 pCi/g 0 Ba-140 O0 1 pCi/g 0 Bi-212 ;41 44 pCilg 0 1.33 Bi-214 1 .

49 49 pCilg 0 0.77 Cc- 144 -, 2 52 pci/g. t; . I0 0.31 Co-58 0 63 .0 pCilg Co-60 3 63 4.84 0 0.06 Cr-51 0 1 pCi/g 0 Cs-134 2 63 . 6.71 0 0.04 Cs-136 2 2 I0 0.32 Cs-137 29 63 12.24 pCi/i 0 0.55 Eu-152 O0 5 12.06 pCilg 0 Fe-59 ;0 52 I0 I-133 0 I 0 K-40 51 52 *pCi/g 0 24.08 Kr-85 0 2 0 Mn-54 58 21.66 pCi/g 0.04 I0 Nb-94 .1 8.53 *pCilg

• 0 Nb-95 4 52 pCilg !0 0.10 Np-239 :0 3 pCifg 0 Pb-212 52 52 pCi/g -: 1.19 0

Pb-214 52 52 pCifg :0 0.86 Ra-226 37 40 3.27 I0 Ru- 103 0 52 Ru- 106 2 52 68.21 pCi/g -0.55 0

Sb-124 52 pCilg 0 *0 Sb-125 9 37.73 pCilg :0 0

Sn-I 13 I pCilg *0 TI-208 46 46 1.08

.0 U-235  ! O I1 Zn-65  : I 52 pcilg 0.08

!0 Zr-95 5 52 *pCilg 0.10 O'

Table 4 Page I of 13 Rad OOL-02 -- Soil (pCitg)

Yankee Nuclear Power Station Rowe, MA Station (Key) IA-I (618) IA-4 (622) IA-5 (624) IA-6 (626) IA-67 (651) OF-189 (357) OF-190 (359) J Sample ID IATS-1 IATS-4 IATS-5 IATS-6 IATS-67 OFTS-189 OFTS-190 Date Sampled 5/17/1993 5/21/1993 5/21/1993 5/6/1993 6/7/1993 10/13/1994 10/13/1994 Ac-228 Ag-108m 0.068 UM 0.049 UM Ag-110m Am-241 Ba-133 Ba-140 Bi-212 Bi-214 Ce-144 Co-58 0.073 UM 10.084 UM 0.084 UM 0.07 UM 0.093 UM 0.068 UM 0.063 UM Co-60 0.0968 UM 10.1 UM 0.104 UM 0.0754 UM 0.0906 UM 0.098 UM 0.106 UM Cr-51 Cs-134 0.067 UM 0.075 UM 0.065 UM 0.053 UM 0.0695 UM 0.063 UM 0.064 UM Cs-136 Cs-137 0.0828 UM 10.0934 UM 10.117 UM 0.0837 UM 0.114 0.504 0.124 UM Eu-152 Fe-59 1-133 K40 Kr-85 Mn-54 10.096 UM 10.085 UM Nb-94 Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Sn-113 TI-208 U-235 Zn-65 Zr-95 SOF 0.009 0.041 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 13 Rad OOL-02 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-191 (360) ; OF-192 (361) fOF-196 (363) OF-251 (419) 1OG001-005 (89)

Sample ID , OFTS-191  : OFTS-192; ' OFTS-196: OFTS-251, OGOOIGUFDO05 t Date Sampled 10/14/1994 10/17/1994 110/17/1994 12/5/1994 7/1/1998 ; ':

i- Ac-228 0.8403 Ag-108m 0.062 UM' 0.049 UM 0.061 UM 0.046UM 0.001595 U .

Ag-110mr 0.02161 U Am-241 0U '

Ba-133 Ba-140 Bi-212 0.8244 II..

Bi-214 0.602 Ce-144 -0.04331 U Co-58'" 0.076 UM 0.058 UM 0.057 UM 0.05 UM -0.04087 U Co-60 0.0837 UM 0.0829 UM. 0.0842 UM 0.076 UM -0.0192 U Cr-51 Cs-134 0.071 UM 0.053 UM 0.054 UM 0.048 UM -0.02494 U Cs-136 Cs-137 0.128 UM ';) 1 0.117 ' 0.53 0.107 0.1164 Eu-152 0.0628 U Fe-59 0.01 153 U 1-133 K-40 ' 20.15 Kr-85 Mn-54 0.079 UM 0.066 UM 0.074 UM 0.057 UM -0.01307 U Nb-94 Nb-95 0.01028 U -

Np-239 Pb-212 .1, '0.6768 Pb-214 0.5995 Ra-226 Ru-103 -0.0208 U Ru-106' ... ;0.3103 Sb-124 -0.0395 U '

Sb-125  :,.,

Sn-113 TI-208 '0.7712 U-235 Zn-65 Zr-95 ii j .'~1'"

0.02741 U 0.03544 U ,

SOF 0.01 0.043 I 0.009 0.014 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 3 of 13 Rad OOL-02 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OG001-006 (90) OGOOI-007 (91) OGOO1-008 (92) GOG01-010 (94) OG005-006 (275) J Sample ID OGOO1GUFDO06 OGOOIGUFDO07 OGOOIGUFDO08 OGOOIGUFDOIO OGOO5GUFDO06 Date Sampled 6/29/1998 6/29/1998 7/2/1998 I7/1/1998 7/28/1998 Ac-228 0.9037 0.8435 0.6405 0.8181 0.7872 Ag-108m 0.02805 -0.01433 U 0.005507 U 0.02597 U -0.002458 U Ag-I 10m 0.002581 U -0.005594 U 0.01 145 U -0.02997 U -0.04529 U Am-241 OU 0U OU OU 0U Ba-133 0.1893 U Ba-140 Bi-212 49.49 U 1.151 0.9062 0.5088 U 0.8669 Bi-214 0.5552 0.2984 0.5067 0.5643 Ce- 144 0.05618 U -0.2016 U 0.1835 U 0.1371 U -0.01548 U Co-58 0.01661 U -0.01169 U -0.003979 U 0.005955 U 0.002123 U Co-60 -0.003756 U -0.007682 U 0.002508 U -0.04073 U 0.006995 U Cr-51 Cs-134 -12.28 U -0.1595 U -0.1214 U 0.06069 U -0.03758 U Cs-136 Cs-137 0.09307 0.06083 0.106 0.2174 0.2479 Eu-152 Fe-59 -0.02888 U 0.02875 U 0.01978 U -0.01235 U 0.02039 U 1-133 K-40 -0.07527 U 18.4 14.47 13.43 20.53 Kr-85 Mn-54 0.041491-0.02104 U 0.031681-0.006859 U -0.003714 U Nb-94 Nb-95 -0.02992 U 0.02969 U -0.02472 U -0.02282 U 0.0252 U Np-239 1.684 U Pb-212 0.8557 1.017 0.6938 0.7748 0.8799 Pb-214 0.5768 0.5997 0.4092 0.6457 0.5999 Ra-226 1.241 1.409 1.6361 2.489 Ru- 103 -0.0384 U -0.01392 U -0.011 U -0.03225 U 0.02092 U Ru-106 0.02177 U 0.04446 U -0.01477 U -0.004069 U 0.02134 U Sb-124 0.0371 U 0.02051 U 0.01106 U 0.004589 U -0.0232 U Sb-125 -0.06784 U Sn-113 TI-208 0.9648 1.001 0.6428 0.5154 0.6686 U-235 Zn-65 -0. 119 U 0.03843 U -0.121 U 0.007657 U -0.01305 U Zr-95 0.05261 U 0.02303 U 0.07146 0.02939 U -0.0002918 U SOF 0.013 0.005 &

0.01 I 0.018 0.02 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 4 of 13 Rad OOL-02 -- Soil (pCig)

Yankee Nuclear Power Station Rowe, MA Station (Key) OGO05-007 (276) 0G005-008 (277) O0G005-009 (278) - G005-010 (279)

Sample ID : OGOO5GUFDO07 OGOO5GUFDO08 OGOOSGUFDOO9 - OGOO5GUFDO1O Date Sampled 7/28/1998 7/28/1998 - 17/28/1998 . 7/28/1998 -

Ac-228 0.6683 0.675 0.8059 0.7177 Ag-108m -0.005282 U -0.02334 U -0.02289 U 0.01066 U Ag-I lOm -0.028 U 0.05301 U 0.008732 U -0.007229 U Am-241 OU. OU OU 0U ;

Ba-133 Ba-140 Bi-212 0.6795 0.8637 0.8452 Bi-214 0.4302 0.5195  ! 0.5261 0.4172 Ce-144 0.1746 U -0.1639 U 0.3068 -0.02297 U Co-58 -0.02724 U 0.02487 U -0.03614 U -0.004071 U Co-60 0.0526 -0.009858 U 0.01322 U 0.03562 U Cr-51 Cs-134 -0.05061 U -0.02704 U -0.07999 U I -0.01982 U Cs-136 Cs-137 0.2125 0.5044 0.2663 0.5255 Eu-152 Fe-59 -0.0442 U -0.08068 U -0.0135 U -0.04032 U 1-133 K-40 11.42 16.16 10.19 14.29 Kr-85 Mn-54 -0.007038 U 0.007195 U 0.009426 U -0.0507 U Nb-94 Nb-95 -0.04232 U 0.003549 U 0.0794210.00178 U Np-239 Pb-212 0.709 0.7776 0.699 0.7301 Pb-214 0.4474 0.597 0.6271 0.4782 Ra-226 3.263 2.087 1.608 U Ru-103 -0.01353 U -0.00524 U -0.04314 U -0.01094 U Ru-106 0.03087 U 0.01219 U- 0.1965 U -0.1716U Sb-124 0.06054 U .';'0.03723 U 0.002272 U 0.003885 U 51125 Sn-113 Tl-208 0.5616 0.8816 0.6792 0.6736 i

U-235 Zn-65 0.002808 U -0.1224 U ;00- -0.04473 U 0.07938 U

,.I . !

Zr-95 -0.08824 U 0.06479 U 0.09585 -0.04789 U I .. , -  :

SOF 0.028 0.041 0.022 0.043 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

0 Table 4 Page 5 of 13 Rad OOL-02 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA

' )

Station (Key) 0G005-011 (280) 0G005-012 (281) 0G005-013 (282) 10G05-022 (290)

Sample ID OGOO5GUFD011 OGO05GUFDO12 OG005GUFDO13 OGO05GUFD022 Date Sampled 7/28/1998 7/28t1998 7/28/1998 7/29/1998 Ac-228 0.2983 1.264 0.9103 1.193 Ag-108m -0.01771 U -0.007686 U 0.001028 U -0.02055 U Ag-110m 0.03332 0.01267 U -0.00217 U 0.05268 U Am-241 OU 0U OU OU Ba-133 Ba-140 Bi-212 0.3501 1.159 1.172 0.6032 U Bi-214 0.4249 0.5519 0.6796 0.5792 Ce-144 -0.05064 U -0.01613 U -0.2192 U -0.09595 U Co-58 -0.003508 U -0.006502 U 0.001373 U -0.0217 U Co-60 -0.0009734 U 0.00486 U 0.04456 U 0.01314 U Cr-51 Cs- 134 -0.001341 U -0.01954 U 0.02435 U 0.01241 U Cs-136 Cs-137 0.06385 0.2285 0.08199 0.5481 Eu-152 Fe-59 -0.02482 U -0.2689 U 0.02726 U -0.1494 U 1-133 K-40 3.541 23.86 24.08 21.47 Kr-85 Mn-54 0.0009691 U -0.0003686 U -0.0152 U 0.02534 U Nb-94 0.03531 U -J Nb-95 0.007671 U 0.05392 U 0.099461-0.02855 U Np-239 Pb-212 0.2836 1.187 1.113 1.048 Pb-214 0.3659 0.5814 0.7377 0.58 Ra-226 2.853 1.908 2.332 Ru-103 0.02566 U -0.002151 U -0.004424 U -0.03396 U Ru-106 -0.1481 U 0.5462 -0.1707 U 0.1829 U Sb-124 0.01046 U -0.05012 U 0.07571 U 0.00423 U Sb-125 -0.08868 U Sn-113 TI-208 1.073 1.075 0.8327 U-235 Zn-65 -0.06651 U -0.05969 U -0.03467 U 0.09483 U Zr-95 0.05315 0.03316 U 0.09496 U 0.09635 U SOF 0.005 0.027 0.007 0.045 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12115/2003 Blank results indicate chemical not analyzed

Table 4 Page 6 of 13 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G012-023 (935) OG012-024 (936) j OG012-026 (938) 0G012-027 (939)

Sample ID OG012GUFD023. G0O12GUFDO24 - OG012GUFD026 - G0O12GUFDO27 Date Sampled 10/71l998 10/7/1998 110/7/1998 10/7/1998 Ac-228 0.592 0.668 0.73 - 0.81 Ag-108m -0.00798 U -0.0199 U 0.00292 U 0.0139 U Ag-110m 0.00724 U -0.00834 U 0.0191 U -0.0406 U Am-241 OU. OU OU OU '

Ba-133 Ba-140 Bi-212 0.484 0.575 Bi-214 0.339 0.413 0.597 0.768 Ce-144 0.0509 U -0.0246 U 0.0212 U -0.0534 U Co-58 0.00485 U -0.0419 U -0.0285 U -0.00489 U Co-60 -0.00000000377 U -0.0102 U -0.0106 U 0.0187 U Cr-5I 0.197 U Cs-134 -0.00567 U -0.08 U 0.0138 U -0.135 U Cs-136 Cs-137 0.12810.0353 U 0.333 0.316 Eu-152 Fe-59 0.00613 U 0.00531 U 0.00764 U -0.0508 U 1-133 K-40 11.4 16.6 14.1 14.5 Kr-85 Mn-54 -0.0142 U 0.0388 -0.00149 U -0.0107 U Nb-94 Nb-95 -0.0433 U 0.0214 U -0.0257 U -0.0304 U Np-239 Pb-212 0.668 0.64 0.725 0.76 Pb-214 0.445 0.44  : 0.571 0.861 Ra-226 0.882 U 1 2.24 2.44 Ru-103 -0.00299 U -0.00926 U 0.0065 U  ; 0.0111 U Ru-106 0.113 U -0.176 U 0.0846 U 0.0616 U Sb-124 0U . 0.0338 U -0.00304 U -0.00651 U Sb-125 -0.0771 U -0.0331 U Sn-113 TI-208 0.655 0.583 0.694 U-235 Zn-65 -0.0682 U 0.0199 U 0.0285 U -0.0752 U Zr-95 0.0283 U 0.0349 U 0.0101 U -0.0122 U

! ..,,- V; SOF I 0.01 I 0.002 J. 0.027-A. 0.026 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 7 of 13 Rad OOL-02 - Soil (pCilg)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G012-028 (940) 0G012-029 (941) G0C12-030 (942) 0G012-031 (943).

Sample ID OGO12GUFDO28 OGO12GUFDO29 OGO12GUFDO30 OGO12GUFDO31 Date Sampled 10/7/1998 10/7/1998 10/7/1998 10/7/1998 Ac-228 0.758 0.654 0.67 0.761 Ag-108Im 0.0147 U 0.00279 U 0.00478 U -0.014 U Ag-il10m -0.0139 U -0.026 U -0.0173 U 0.0199 U Am-241 OU 0U 0U 0U Ba-133 Ba-140 Bi-212 0.754 0.62 0.672 0.617 Bi-214 0.465 0.564 0.579 0.558 Ce-144 0.234 -0.122 U 0.119 U -0.129 U Co-58 -0.00429 U 0.00522 U -0.00685 U -0.0264 U Co-60 0.00123 U 0.009 U 0.0313 U 0.0155 U Cr-51 Cs- 134 0.00442 U 0U 0.040310.00447 U Cs-136 Cs-137 0.1 0.251 0.185 0.0909 Eu- 152 0.448U Fe-59 0.025 U -0.0129 U 0.033 U -0.00601 U 1-133 K-40 13.7 12.5 11.9 14.4 Kr-85 3.55 U -1.59 U Mn-54 0.00166 U -0.00384 U 0.00817 U 0.0405 Nb-94 Nb-95 0.00696 U 0.00784 U -0.00275 U 0.00177 U Np-239 Pb-212 0.866 0.79 0.512 0.769 Pb-214 0.636 0.693 0.555 0.522 Ra-226 1.08 1.08 1.27 Ru-103 -0.00686 U 0.00766 U -0.0211 U -0.0101 U Ru-106 0.0254 U OU OU 0U Sb-124 0.0201 U 0.00845 U 0.0125 U -0.0168 U Sb-125 -0.0419 U Sn-113 TI-208 0.892 0.738 0.6 0.754 U-235 Zn-65 -0.0284 U 0.0352 U 0.0166 U -0.00838 U Zr-95 0.0421 U 0.000464 U 0.0261 U 0.049 U SOF 0.008 0.021 0.021 0.009 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 8 of 13 Rad OOL-02 --'Soil (pCi/g)

Yinkee Nuclear Power Station Rowe, MA Station (Key) TS99.33 (3332) TS99.33 (3332) , TS99.33 (3332) TS99.33 (3332) TS99.33 (3332)

Sample ID - TS99.33A TS99.33B - TS99.33C ' TS99.33D -. TS99.33E Date Sampled 15/1111999 5/11/1999 - 5/i 1/1999:' 5/11/1999 5/11/1999 Ac-228 I 0.6352 '; 0.6559 . 0.7939 0.8066 Ag-108m. -0.002975 U -000453 U -0.006656 U -0.01625 U -0.0053 U Ag-I lOm 0.005345 U 0.005198 U 0.03165 U -0.01075 U 0.003961 U - 4 Am-241 OU OU OU OU OU -

Ba-133 -0.04197 U Ba-140  !

Bi-212 0.6543 0.7271 .085 0.7301 0.9395

,. .~ I g Bi-214 0.4151 0.3991  ; 0.4t272 0.4641 0.4235 Ce-144 0.01325 U 0.0626 U -0.0568 U -0.08599 U -0.07338 U Co-58 -0.02826 U - W 0.003026 U -0:0007948 U 0.01596 U 0.01693 U Co-60 -0.003734 U -0.02074 U 0.007226 U 0.002673 U 0.01085 U Cr-51 Cs-134 -0.03097 U -0.06536 U -0.05521 U 0.02347 U -0.07436 U Cs-136 Cs-137 0.0158 U - - 0.02505 U 0.002493 U 0.01258 U 0.002495 U Eu-152 0.4546 U Fe-59 -0.02406 U 0.005616 U 0.05031 U -0.001882 U -0.03429 U 1-133 K-40 4. 15.08 15.07 e - 15.65 14.76 16.13 Kr-85 Mn-54 0.001048 U -0.003313 U 0.002536 U 0.00128 U 0.002539 U Nb-94 Nb-95 0.01246 U 0.01575 U ii 0.03329 0.02291 U - -0.00908 U Np-239 0.1152 U Pb-212 0.7519 0.7577 0.7378 0.8133 0.66977 Pb-214 0.5136 0.446 0.5294 0.4891 0.44164 Ra-226 , 1.276 2.023 i 2.094 1.

.991 Ru-103 0.007195 U 0.01439 U - 0.004934 U -0.02145 U 0.01247 U 1 Ru-106 0.1069 U -0.09614 U -0.08275 U -0.1879 U -0.04142 U, Sb-124 -0.005758 U 0.008959 U 0.01003 U I -0.01688 U 0.007449 U:'

Sb-125 I Sn-1 13 TI-208 - 0.8918 0.6898 0..7772 0.8601 0.8054 U-235 Zn-65 -0.005017 U -0.03278 U: 0.06679 U ' 50.08175 0.004439 U Zr-95 0.01532 U  ; -0.01334U 0.02909 U:' :1 0.009517 U -0.0146 U SOF' 1, .,:

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 9 of 13 Rad OOL-02 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) TS99.33 (3332) TS99.33 (3332) TS99.34 (3333) TS99.35 (3334) TS99.35 (3334) J Sample ID TS99.33F TS99.33G TS99.34B 1TS99.35A TS99.35B Date Sampled 5/11/1999 5/11/1999 5/12/1999 - 5/12/1999 5/12/1999 Ac-228 0.8135 0.8114 0.7077 0.7253 0.8386 Ag-108m 0.0146 U 0.005847 U 0.001826 U 0.00928 U 0.005062 U Ag-110m -0.0459 U 0.0009091 U -0.005167 U -0.007853 U 0.00436 U Am-241 0U 0U 0U 0U 0U Ba-133 Ba-140 0.3555 U Bi-212 0.7382 1.101 1.331 1.174 Bi-214 0.3372 0.4572 0.4265 0.4342 Ce-144 0.1373 U 0.1058 U 0.0415 U -0.1419 U -0.1463 U Co-58 -0.02164 U -0.001751 U -0.003932 U -0.0043 U 0.01484 U Co-60 0.02654 U -0.01079 U -0.03111 U 0.0389 -0.02222 U Cr-5I Cs-134 -0.05461 U -0.07215 U -0.2192 U 0.004375 U 0.00286 U Cs-136 0.3189 Cs-137 0.007324 U 0.01024 U -0.02054 U 0.02148 U 0.04344 Eu-152 0.2294 U Fe-59 0.007887 U -0.01159 U 0.005239 U 0.03333 U -0.04502 U 1-133 K-40 15.931 15.07 14.99 15.52 15.48 Kr-85 Mn-54 0.009228 U 0.01349 U 0.002872 U 0.009821 U 0.01801 U Nb-94 Nb-95 0.008697 U 0.009396 U 0.0203 U -0.01412 U 0.02493 U Np-239 0.7511 U Pb-212 0.7901 0.8 0.8191 0.8233 0.8346 Pb-214 0.4899 0.5066 0.4495 0.409 0.4516 Ra-226 1.605 0.8561 U 1.564 1.551 Ru-103 -0.007255 U 0.00544 U 0.007877 U -0.01079 U 0.007508 U Ru-106 -0.2432 U 0.1648 U -0.007581 U 0.2003 U 0.02876 U Sb-124 0.008738 U -0.04889 U -0.01884 U OU 0U Sb-125 -0.07531 U Sn-113 TI-208 0.8242 0.5802 0.6625 0.9284 0.6879 U-235 Zn-65 -0.05976 U -0.05926 U -0.06012 U -0.201 U 0.01812 U Zr-95 -0.005075 U 0.04284 U 0.01248 U 0.03049 U 0.03404 U SOF 1 _______________________ 1.

0.008 a. 0.004 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 10 of 13 Rad OOL-02 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe,'MA Station (Key) TS99.36 (3335) ITS99.36 (3335) TS99.36 (3335)' TS99.46 (3344)' TS99.46 (3344) -

Sample ID' ' TS99.36A ' ' ' TS99.36B "' TS99.36C: ' TS99.46A , TS99.46B Date Sampled 5/177/1999 /1999 :9 ;:5/17/1999 ' 6/1i/1999 61/1999 Ac-228 i - 0.164 0.2242  :,- ' 0.2554

• 0.9913 - 1.03 Ag-108mn' -0.01353 U 0.009373 U ' : - -0.006202 U ' 0.0007227 U ' -0.01336 U -'

Ag-1 10m 0.02161 U 0.02763 U , ' 0.03364 -0.0252 U ' 0.01 125 U Am-241 OU 0U OU OU OU Ba-133 Ba-140 Bi-212 0.8419 1.024 Bi-214 0.1922 0.1985

• 0.4501 0.4774 Ce-144 -0.03011 U -0.01712 U ' - ' -0.002643 U -0.0393 U; '"' " -0.06407 U '-

Co-58 0.00759 U -0.0104U;U - 0.004564 U ' I 0.01153 U: '- -0.03113 U Co-60 -0.01019 U 0.003316 U ' 0.02994 U -0.01081 U 0.01772 U Cr-51 Cs-134 -0.01 146 U -0.01723 U -0.09509 U ' -0.0488 U I -0.037 U Cs-136 0.121 Cs-137 0.01407 U ' 1-0.003955 U -0.003635 U -0.002486 U ' -'- -0.0 1778 U Eu-152 Fe-59 -0.005204 U -0.01757 U -0.02666 U -0.005587 U OU 1-133 0.01517 U K-40' 13.11 11.271 11.89 16.51 16.17 Kr-85 Mn-54 0.01239 U -0.01628 U 0.01488 U ' 0.009362 U- 0.02686 U Nb-94 Nb-95 0.005151 U 0.002542 U 0.007344 U I ';' 0.01978 U 0.007494 U Np-239 Pb-212 0.2532 0.2808 0.281 0.9135 '0.901 Pb-214' 0.2544 0.2296 ' -' 0.2383 0.5365 0.5244 Ra-226 0.677 1.394 1.745

.f.

Ru-103 0.01159 U -0.01233 U ' -0.006493 U ' ' ' 0.01089 U 0.007024 U ' " - '

Ru-106 0.02617 U -0.03875 U ' ' - 0.06225 U 0.1445 U -0.08265 U Sb-124 -0.03121 U 0.0102 U 0.008526 U ' - -0.01336 U' OU Sb-125 Sn-1 13 0.9545 U Tl-208 0.9611 0.8848 U-235 Zn-65 -0.04621 U -0.06034 U -0.07454 U 0.09551 U  !' ' . -0.03853 U ;-II Zr-95 -0.0008001 U 0.007431 U - -0.02418 U -0.01292 U 0.01972UU '

SOF U-not detected (value is not greater than 2 sigma); UM-nonidetect (value is equal to MDA)'

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 1I of 13 Rad OOL-02 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA I

Station (Key) TS99.46 (3344) TS99.51 (3349) TS99.51 (3349) TS99.51 (3349) TS99.52 (3350)

Sample ID TS99.46C TS99.51A TS99.51 B TS99.51C TS99.52A Date Sampled 6/1/1999 6/7/1999 16/7/1999 6/7/1999 6/7/1999 Ac-228 0.9342 0.8417 0.8831 0.8278 0.9571 Ag-108m -0.005332 U -0.008247 U 0.01742 U 0.002869 U -0.001988 U Ag-110m 0.008617 U -0.01905 U -0.0 1204 U 0.01833 U 0.00118 U Am-241 OU OU OU OU OU Ba-133 Ba-140 Bi-212 1.13 0.9897 0.7338 1.18 0.8687 Bi-214 0.4994 0.4763 0.3797 0.4172 0.4638 Ce-144 0.04632 U -0.1962 U -0.0716 U -0.105 U -0.04905 U Co-58 0.01754 U -0.02072 U -0.002297 U -0.004323 U -0.01035 U Co-60 -0.003652 U -0.001597 U -0.01885 U 0.01725 U -0.03572 U Cr-51 Cs- 134 0.01066 U 0.01188 U -0.06137 U 0.02042 U -0.03668 U Cs-136 Cs-137 -0.02016 U 0.01368 U 0.01011 U -0.01268 U 0.007025 U Eu- 152 Fe-59 -0.03366 U 0.01849 U -0.006941 U -0.04879 U -0.02886 U 1-133 K-40 15.01 14.86 14.84 14.8 15.32 Kr-85 Mn-54 -0.007316 U 0.02263 U 0.01473 U 0.04058 -0.01044 U

-I.

Nb-94 Nb-95 0.02547 U 0.0005326 U 0.055861-0.01088 U 0.0328 U Np-239 Pb-212 0.9169 0.7672 0.8438 0.8485 0.9598 Pb-214 0.4977 0.5268 0.4682 0.5257 0.4421 Ra-226 1.469 1.093 1.147 1.182 3.267 Ru-103 -0.03558 U -0.002746 U 0.01271 U -0.005662 U 0.01835 U Ru-106 -0.02092 U -0.02272 U 0.09427 U 0.1976 U 0.1704 U Sb-124 -0.009602 U -0.007978 U 0.001701 U -0.03201 U -0.0391 U Sb-125 Sn-113 TI-208 0.884 0.7716 0.598 0.801 0.8003 U-235 Zn-65 -0.09136 U -0.1065 U -0.07589 U -0.05189 U -0.03355 U Zr-95 0.006946 U 0.0124 U 0.004359 U 0.05905 -0.03447 U SOF 0.002

_J U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 12 of 13 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) TS99.52 (3350) ITS99.52 (3350) TS99.53 (3351) TS99.53 (3351) }TS99.53 (3351)

Sample ID TS99.52B . TS99.52C . TS99.53A 1TS99.53B - TS99.53C Date Sampled 6/7/1999 - 6/7/1999 - '6/7/1999 - ' 6/7/1999 l 6/7/1999 Ac-228 1.028 1.014 '.: 0.8779 0.818 0.8787 Ag-108m 0.009246 U 0.0008899 U ' 0.005819 U -0.003857 U -0.003761 U :

Ag-110m 0.008635 U -0.02023 U - 0.03914 -0.01736 U 0.006242 U Am-241 OU OU OU OU OU Ba-133 Ba-140 Bi-212 1.108 0.7524 ,  ; 1.001 0.6354 0.9808 Bi-214 0.556 0.5396  : 0.4786 - 0.4362 0.3841 Ce-144 0.1088 U 0.09897 U '2 0.1326 U . .

0.1201 U.' -0.07098 U -'

Co-58 -0.001585 U -0.00105 U -0.01 15 U ' . . .

0.01467 U 0.00444 U Co-60 0.004374 U 0.01329 U OU 0.01443 U' 0.007449 U  :

Cr-51  :

Cs-134 -0.01544 U -0.1398 U -0.1117U -0.006091 U 0.03563 Cs-136 Cs-137 0.02026 U -0.0005401 U 0.03442 U -0.0224 U 0.005138 U Eu-152 0.1925 U Fe-59 0.01768 U -0.01715 U' -0.02772 U -0.05096 U 0.01755 U 1-133 0 K40 17.08 16.7 17 14.39 15.08 Kr-85 Mn-54 -0.009329 U 0.0005268 U -0.01401 U 0.01725 U 0.02619 U Nb-94 ,

Nb-95 0.006717 U 0.008394 U 0.014 U -0.00319 U -0.02308 U Np-239 Pb-212 1.003 0.9477  :- 0.7423 0.8942 0.8096 Pb-214 0.4758 0.6058 ;I 0.5049 0.4673 0.4153 Ra-226 1.781 1.236 '- 1.872 1.569 1.509 Ru-103 0.005546 U: -0.006775 U;i 0.0004207 U -0.01 198 U -0.00286 U Ru-106 0.1496 U 0.02188 U -0.1101 U : 0.02069 U 0.1068 U Sb-124 -0.01996 U 0.02044 U OU 0.02953 U 0.02789 U I-.. : ..

Sb-125 -0.1291 U I Sn-113 Tl-208 0.8906 0.8874 ,- , 0.8937  : 0.6559 0.6842 U-235 0.6268 U Zn-65 -0.008302 U -0.1101 U -0.0474U - -0.03118 U -0.04642 U - - '

Zr-95 0.02326 U 0.02871 U 0.05977 0.01383 U -0.003571 U ;-

SOF I.. ' 0.005 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 13 of 13 Rad OOL-02 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) TS99.54 (3352) TS99.54 (3352) WSD03 (3404) YGO01.6 (3412) YGOO1.6 (3412)

J Sample ID TS99.54A TS99.54B WSD03 YGOOI.6A YGOOI.6B Date Sampled 6/9/1999 6/9/1999 8/23/1999 9/23/1998 9/24/1998 Ac-228 0.9116 1.023 0.3779 0.6189 1.001 Ag-108m -0.0121 U -0.009371 U 0.002638 U -0.009298 U 0.002169 U Ag-110mn 0.01621 U 0.005256 U -0.008529 U 0.0292 U -0.0411 U Am-241 OU OU OU OU OU Ba-133 Ba- 140 Bi-212 1.205 0.6432 0.6249 0.87 Bi-214 0.4627 0.4715 0.3163 0.4739 0.5109 Ce-144 -0.01127 U 0.05213 U 0.09392 U -0.08423 U 0.01996 U Co-58 -0.006176 U -0.009493 U 0.01425 U 0.0007782 U 0.002996 U Co-60 -0.01385 U 0.01101 U 0.06425 -0.008694 U -0.03497 U Cr-51 Cs-134 -0.0 1874 U -0.01239 U -0.04744 U -0.04811 U 0.04541 U Cs-136 Cs-137 -0.01569 U 0.03039 U 0.2778 0.1928 0.02991 U Eu-152 Fe-59 0.009284 U -0.05337 U -0.008897 U 0.00267 U 0.03023 U 1-133 K-40 15.36 14.86 9.686 10.26 15.05 Kr-85 Mn-54 -0.01655 U -0.005669 U 0.001945 U -0.01204 U 0.0005527 U Nb-94 Nb-95 0.02302 U 0.02337 U 0.009678 U 0.01874 U -0.01848 U Np-239 Pb-212 0.9143 0.8575 0.5295 0.5554 0.9617 Pb-214 0.5074 0.4161 0.2936 0.4314 0.5419 Ra-226 1.211 1.583 1.223 Ru-103 -0.01 177 U -0.0 1209 U -0.002557 U -0.01533 U -0.01494 U Ru- 106 OU -0.06306 U 0.0544 U 0.04268 U -0.09018 U Sb-124 -0.001143 U OU 0U 0.003458 U -0.008458 U Sb-125 -0.03707 U -0.118 U Sn-1 13 TI-208 0.7249 0.805 0.4084 0.8007 U-235 Zn-65 -0.09243 U -0.07918 U -0.0708 U 0.05866 U 0.05819 U Zr-95 0.006151 U 0.03093 U 0.009702 U 0.009336 U 0.006969 U SOF 0.036 0.016 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Historical Site Assessment and Classification'Summary Survey Area Name: Sherman Reservoir Dam & South Shoreline Designator: OOL-03 Survey Area Description Survey area OOL-03 consists of the surface area of the Sherman Dam and the south shoreline of Sherman Reservoir, property owned by US Gen. Survey area OOL,03 contains about 16188 square meters of soil, asphalt and concrete surface area.

Survey area OOI.03 is bounded by survey areas OOL-Ol on the north, OOL-13 onthe east, both properties owned by US Gen., OOL-02 on the south and OOL-04 on the west property also owned by US Gen.

Sub-surface systems that traverse or connect within OOL-03 include:

• Abandoned street lighting electrical cable.

• Auxiliary Service Water System, power and water lines

• The circulating water system

• Roof, floor and equipment drains

• Electrical duct trays

• Electrical grounding cables

• Security lighting electrical conduits.

• East storm drain system

• Service water system

• Fire protection system water lines Items of note located within or adjacent to OOL03 include:

• Concrete support pads at the former location of the a temporary office structure

• A portion of the H T and W railroad bed where it crossed the site'

• Flood control berm at Sherman Dam

• Electrical Hand Hole #3

• Temporary office trailers.

• East storm drain discharge point.

• The travelling-screen system wash water discharge trench

. The Sherman Dam road.- ;

• The ShermanHydro-electric Station sluice gate house

• The circulating water discharge structure.

• The MET Tower Page 1 of 6

Historical Site Assessment and Classification Summary Survey Area Name: Sherman Reservoir Dam & South Shoreline Designator: OOL-03 Survey Area History Survey area OOL-03 is not part of the RCA. There are no radioactive systems present in OOL,03.Survey area OOL-03 was not used for storing radioactive material or processing or packaging radioactive waste.

The Sherman Dam access road portion of survey area OOL-03 was used as the primary access point for receiving and shipping radioactive waste via truck transport. Prior to.

discontinuance of railroad access to the site, spent fuel and high level radioactive waste such as irradiated control rods were shipped using the railroad.

Radioactive systems present in OOL-03 include:

• The east storm sewer system.

• Both the former (circulating water system) and the present (ASWS) monitored discharge pathway for radioactive liquid releases.

Survey area OOL-03 is likely to be minimally impacted as a result of transmigration of low levels of radioactive contamination present on the RCA yard area surface via surface water run-off of and/or personnel traffic, equipment and material transfer into the non-RCA portion of the site.

Events and activities that lead to the contamination of survey area OOL-03 include:

• AOR 66-7 Spent Fuel Pit Water Spill. (Ref 1)

• AOR 66-09 Hose Failure, while draining the fuel transfer chute pump back line. (Ref 2)

• PIR 81-09 Contamination of the Yard Area during Reactor Head Removal.

(Ref 3)

The first two events in 1966 are similar because they both released radioactivity into the east storm drain system. At that time, the east storm drain system terminated at a point just to the north of the railroad tracks (Ref 4). Previously the east storm sewer terminated at the same location as the west storm sewer in survey area 00L06 (Ref 5).

Subsequently the storm drain wVas extended to the northeast so that the discharge is closer to the edge of Sherman Reservoir (present location). The former discharge point is now buried under several feet of fill material.

TranslocationPathivays The likely modes and vectors of contamination translocation associated with OOL,03 are migration of low levels of contamination beyond the bounds of 00L03 via surface run-off to survey areas down slope or into and through the storm drain system to the discharge.

Page 2 of 6

Historical Site Assessment and Classification Summary Survey Area Name: Sherman Reservoir Dam & South Shoreline Designator: OOI-03 Site modifications performed within survey area OOL-03 include:

• Raising the elevation of Sherman Dam

. Change to the layout of the east storm drain system and subsequent extension, which diverted the east storm drain flow into Sherman Reservoir.

• Re-location of the security perimeter fence. -

• Set-up of the temporary office building

• Installation of the security lighting and camera system.

Modifications'performed at the YNPS site in support of decommissioning that changed the configuration of OOL-,03 include: -

• Installation of the ASWS piping.

Scoping/Cizaracterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan (Ref. 6).

Additional scoping survey data was collected -in support of the construction activities performed in OOL03 in support of decommissioning.

Decommissioning No decommissioning activities have been performed for survey area OOL-03.

Page 3 of 6

U Historical Site Assessment and Classification Summary Survey Area Name: Sherman Reservoir Dam & South Shoreline Designator: OOL-03 Findings Survey area OOL-03 is a land area that is located in the non-RCA portion of the site.

Survey area OOL-03 is minimally impacted with locations likely to contain radioactivity concentrations at a small fraction of DCGL.

The radionuclide mix likely to be present in OOL,03 includes all radionuclides identified in the radioactive systems of the plant (Ref 7). The primary radionuclides of concern for survey area OOL-03 are Co-60, Cs-137, Ag-108m, Sr-90 and tritium.

CurrentStatus OOL-03 continues to be potentially impacted by radioactive material migration due to surface run-off from within the RCA, radioactive material packaging and transport and by decommissioning activities.

A soil sample location map (Figure 4) has been prepared to show the distribution of sampling locations in OOL-03. Only samples representative of soils still present are included on the map (samples of soils representative of soils removed during remediation activities are not presented). Three survey media were assessed in OOL,03, Asphalt, Sediment and Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL. There are separate sets of Tables 1-4 for each survey media. All are evaluated as fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL-03 is presented at the end of Table 1 for each survey medium. The results are summarized below.

Asphalt: Mean SOF is 0.013.

Maximum SOF for a single asphalt sample is 0.013. (key# 86) on the dam roadway just inside the gate.

Minimum SOF for a single asphalt sample is 0.0 13. (key# 86).

Sediment: Mean SOF is 0.160.

Maximum SOF for a single sediment sample is 0.160. (key# 3089) at the east storm drain outlet.

Minimum SOF for a single sediment sample is 0.160. (key# 3089).

Page 4 of 6

Historical Site Assessment and Classification Summary Survey Area Name: Sherman Reservoir Dam & South-Shoreline Designator: OOL-03 Soil: Mean SOF is 0.036.

Maximum SOF for a single soil sample is 0.332. (key# 412) just southeast of the east storm drain outlet.

Minimum SOF for a single soil sample is 0.004. (key# 51) just southeast of the east storm drain outlet.

Classification Statement Based upon the historical use and radiological conditions associated with this survey area OOL-03 is identified as a Class 3 Area.

Page 5 of 6

I- a Historical Site Assessment and Classification Summary Survey Area Name: Sherman Reservoir Dam & South Shoreline Designator: 00103 Drawings I

9699-FB-A2, Storm and Sanitary Sewers Underground.

9699-FC-53A, Seal Pit Concrete Details 9699-FC-61A 9699-FP- 12I Figure 7- 1A References

1. Abnormal Occurrence Report (AOR) 66-07, Spent Fuel Pit Water Spill, dated September 27, 1966.

2. AOR 66-09, "Plastic Garden Hose Failure," dated November 1, 1966.

3. Plant Information Report (PIR) 81-09, dated June 12, 1981.

4. Analysis of Historical Aerial Photography for the YNPS Site

5. OPs Report #69 for September 1966, dated October 21, 1966.

6. YNPS Decommissioning Plan, Rev. 0.0.

7. "Radionuclides for Building Surfaces and Soil DCGL Determinations," YA-REPT-00-001-03 Page 6 of 6

Page Iofr Table 1 Sum of Fractions OOL03 -- Asphalt Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 86 OGOOI-002 OGOOIGUFA002 0.013 Min 0.013 Max 0.013 Mean 0.013

Table 2 Pagc 1of I Statistical Data Summary - OOL.03 -- Asphalt Yankee Nuclear Power Station Rowe, MIA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 1 1 0.453 0.453 0.453 0.453 Ag-108m pCi/g 0 1 0.000 Ag-i lOm pCi/g 0 1 0.000 An-241 pCi/g 0 1 0.000 Bi-212 pCi/g 1 1 0.585 0.585 0.585 0.585 Bi-214 pCi/g 1 1 0.406 0.406 0.406 0.406 Cc- 144 pCi/g 0 1 0.000 Co-58 pCi/g 0 2 0.000 Co-60 pCi/g 0 2 0.000 Cs-134 pCi/g 1 2 0.085 0.085 0.085 0.085 Cs-137 pCi/g 0 2 0.000 Fe-59 pCi/g 0 1 0.000 K-40 pCi/g I 1 6.441 6.441 6.441 6.441 Mn-54 pCi/g 0 1 0.000 Nb-95 pCi/g 0 1 0.000 Pb-212 pCi/g I 1 0.317 0.317 0.317 0.317 Pb-214 pCi/g I 1 0.424 0.424 0.424 0.424 Ra-226 pCi/g 0 1 0.000 Ru-103 pCi/g 0 1 0.000 Ru-106 pCi/g 0 1 0.000 Sb-124 pCi/g 0 1 0.000 Zn-65 pCi/g 0 1 0.000 Zr-95 pCi/g 0 1 0.000 CC (,

Page I of I Table 3 Summary of Detected Results Above Criteria

': OOI.03 -- Asphalt Yankee Nuclear Power Station Rowe, MA DCGL_'Asphalt

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ac-228 1 I 'pCig 0 0.45 Ag-108m 0 1 8.52 pCi/g 0 Ag-lrnm 0 1 pCigg 0 Arn-241 0 1 44.35. pCilg 0 Bi-212 1 I pCilg 0 0.59 Bi-214 1 I pCilg 0 0.41 Cc-144 0 I . pCilg 0 Co-58 0 2 pCi/g 0 Co-60 0 2 4.84 pCig, 0 Cs-134 1 2 6.71 pCilg 0 0.08 Cs-137 0 2 12.24 pCilg 0 Fe-59 0 1 pCilg 0 K-40 1 1 pCilg 0 6.44 Mn-54 0 1 21.66 pCilg 0 Nb-95 0 1 pCilg 0 Pb-212 I I pCi/g 0 0.32 Pb-214 1 1 pCilg 0 0.42 Ra-226 0 1 'pCig 0 Ru- 103 0 1 pCilg 0 Ru-106 0 1 68.21 pCUg 0 Sb-124 0 1 pCi/g 0 Zn-65 0 1 pCi/g 0 Zr-95 0 1 pCilg 0 I

a Table 4 Page I of I Rad OOL-03 -Asphalt (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) IA-3 (620). OGOOI-002 (86)

J Sample ID , IAAS-3 OGOO1GUFA002 Date Sampled 5/17/1993 6/30/1998 Ac-228 0.4534 Ag-108m -0.002381 U Ag-I 10m -0.001056 U Am-241 0U Bi-212 0.5851 Bi-214 0.4059 Ce-144 0.008902 U Co-58 0.087 UM 0.00 1399 U Co-60 0.111 UM 0.005009 U Cs-134 0.074 UM 0.08469 Cs-137 0.105 UM -0.00387 U Fe-59 0.01368 U K-40 6.441 Mn-54 -0.01584 U Nb-95 0.01454 U Pb-212 0.3166 Pb-214 0.4242 Ra-226 0.8607 U Ru- 103 0.002944 U Ru-106 0.04593 U Sb-124 Zn-65

-0.01088 U

-0.003931 U JU Zr-95 0.01434 U SOF 0.013 NJ U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Asphalt Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Pagelof I Table I Sum of Fractions OOLP03 -- Sediment Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 3089 SE544 SE544 0.160 Min 0.160 Max 0.160 Mean 0.160

Table 2 Page I of 1 Statistical Data Summary - 0003 -- Sediment Yankee Nuclear Power Station Rowe, MA Parameter Units #Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 1 1 0.653 0.653 0.653 0.653.

Ag-108m pCi/g 1 1 0.059 0.059 0.059 0.059 Ag-i lOnm pCi/g 0 1 0.000 Am-241 pCi/g 0 1 0.000 Bi-212 pCi/g I 1 1.017 1.017 1.017 1.017 Bi-214 pCi/g I 1 0.346 0.346 0.346 0.346 Cc-144 pCi/g 0 1 0.000 Co-58 pCi/g 0 1 0.000 Co-60 pCi/g I 1 0.416 0.416 0.416 0.416 Cs-I 34 pCi/g 0 1 0.000 Cs-137 pCi/g 1 1 0.823 0.823 0.823 0.823 Eu-152 pCi/g 0 1 0.000 Fc-59 pCi/g 0 1 0.000 K-40 pCi/g I 1 14.820 14.820 14.820 14.820 Mn-54 pCi/g 0 1 0.000 Nb-95 pCi/g 0 1 0.000 Pb-212 pCi/g I 1 0.801 0.801 0.801 0.801 Pb-214 pCi/g I 1 0.456 0.456 0.456 0.456 Ru-103 pCi/g 0 1 0.000 Ru-106 pCi/g 0 1 0.000 Sb-124 pCi/g 0 1 0.000 Sb-125 pCi/g 0 1 0.000 TI-208 pCi/g I 1 0.877 0.877 0.877 0.877 Zn-65 pCi/g 0 1 0.000 Zr-95 pCi/g 0 1 0.000

Pagelof I Table 3 Summary of Detected Results Above Criteria

- 001,03 L --Sediment Yankee Nuclear Power Station Rowe, MA DCGLSediment

1. Sample Criterion * # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detecte d Ac-228 pCilg 0.65 I

Ag-108m I 8.52 pCilg 0.06 I

Ag-I l Om pCilg An-241 44.35 pCilg Bi-212

• pCilg 1.02 Bi-214 pCilg 0.35 I

Ce-144 pCilg I

Co-58 pCilg Co-60 4.84 0.42 I

Cs-134 6.71 pCi/g Cs-137 12.24 0.82 I

Eu- 152 12.06 .pCi/g I

Fc-59 pCilg K-40 pCilg 14.82 Mn-54 21.66 pCilg I

Nb-95 pCilg 1

Pb-212 pCilg 0.80 Pb-214 pCilg 0.46 I

Ru- 103 pCi/g 1

Ru-106 68.21 I

Sb-124 .I Sb-125 . 37.73 I

T1-208 pCilg 0.88 I

• pCilg Zn-65 I

Zr-95 pcilg

Table 4 Page I of I Rad OOL Sediment (pCilg)

Yankee Nuclear Power Station Rowe, MA Station (Key) SE544 (3089)

Sample ID SE544 Date Sampled 8/31/1998 Ac-228 0.6527 Ag-108m 0.05936 Ag-lO0m -0.03015 U Am-241 OU Bi-212 1.017 Bi-214 0.3461 Ce-144 0.1295 U Co-58 -0.0275 U Co-60 0.4155 Cs-134 0.0008945 U Cs-137 0.8228 Eu-152 0.06798 U Fe-59 -0.0137 U K-40 14.82 Mn-54 0.01342 U Nb-95 0.02861 U Pb-212 0.801 Pb-214 0.4557 Ru-103 -0.03133 U Ru-106 0.1748 U Sb-124 -0.009517 U Sb-125 0.02437 U TI-208 0.877 Zn-65 0.1522 U Zr-95 0.0235 U SOF 0.16 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Page of 1 Table I Sum of Fractions OOL-03 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 113 0G001 -031 OGOO1GUFDO31 0.008

54 0G002-004 OGO02GUFDO04 0.007 56 0G002-006 OGO02GUFDO06 0.023 58 0G002-008 0G002GUFDO08 0.116 59 0G002-009 OGO02GUFDO09 0.006 102 OGOOI-018 OGOOIGUFDO18 0.025 103 OG001-020 OGOOIGUFDO20 0.032 105 OG001-022 OGOOIGUFDO22 0.005 108 OG001-025 OGOOIGUFDO25 0.012 110 ogO01-027 ogOOlgufdO27 0.018 51 0G002-001 OG002GUFD0O1 0.004 112 ogOO-030 ogOOlgufdO3O 0.018 415 OF-247 OFTS-247 0.030 114 OG001-032 OGOOIGUFDO32 0.006 115 OG001-035 OGOOIGUFDO35 0.015 116 OG001-036 OGOOIGUFDO36 0.017 409 OF-241 OFTS-241 0.029 410 OF-242 OFTS-242 0.006 411 OF-243 OFTS-243 0.065 412 OF-244 OFTS-244 0.332 413 OF-245 OFTS-245 0.016 414 OF-246 OFTS-246 0.024

. 111 ogOO1-029 ogOOlgufdO29 0.008 Min 0.004 Max 0.332 Mean 0.036

Table 2 Pagel of I Statistical Data Summary - OOL03 -- Soil Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Aledian Results Ac-228 pCi/g 28 28 0.918 0.116 0.700 1.193 0.928 Ag-108m pCi/g 0 36 0.000 Ag-i lOm pCi/g 0 28 0.000 Am-241 pCi/g 0 28 0.000 Bi-212 pCi/g 21 23 0.894 0.208 0.622 1.285 0.875 Bi-214 pCi/g 18 18 0.525 0.070 0.413 0.671 0.521 Cc- 141 pCi/g I 1 0.080 0.080 0.080 0.080 Cc-144 pCi/g 1 28 0.371 0.371 0.371 0.371 Co-58 pCi/g 0 37 0.000 Co-60 pCi/g 3 37 0.581 0.697 0.140 1.384 0.218 Cs-134 pCi/g 1 37 0.089 0.089 0.089 0.089 Cs-137 pCi/g 21 37 0.242 0.231 0.050 1.077 0.193 Eu-152 pCi/g 1 2 0.341 0.341 0.341 0.341 Fc-59 pCi/g 0 28 0.000 K-40 pCi/g 25 28 15.817 8.469 0.453 26.170 18.560 Kr-85 pCi/g 0 1 0.000 Mn-54 pCi/g 0 36 0.000 Nb-95 pCi/g 4 28 0.075 0.012 0.060 0.090 0.075 Pb-212 pCi/g 28 28 0.883 0.124 0.640 1.259 0.870 Pb-214 pCi/g 28 28 -0.539 0.063 0.445 0.699 0.531 Ra-226 pCi/g 16 21 1.920 0.475 1.279 2.691 1.792 Ru-103 pCi/g 1 28 0.037 0.037 0.037 0.037 Ru-106 pCi/g 1 28 0.425 0.425 0.425 0.425 Sb-124 pCi/g 0 28 0.000 Sb-125 pCi/g 0 1 0.000 TI-202 pCi/g 0 1 0.000 Tl-208 pCi/g 23 23 0.820 0.138 0.547 1.061 0.853 Zn-65 pCi/g 1 28 0.117 0.117 0.117 0.117 Zr-95 pCi/g 0 28 0.000

( (

Page I of I Table 3 Summary of Detected Results Above Criteria OOI,03 -- Sediment Yankee Nuclear Power Station Rowe, MA DCGL_Sediment

1. Sample Criterion # Detects Above Maximum

.Parameter # Detects Results Concentration Units Criterion Detecte d Ac-228 1 pCilg 0 0.65 Ag-108m I 8.52 pCilg 0 0.06 Ag-I l Om I pCilg 0 Ar-241 1 44.35 pCilg 0 Bi-212 I pCilg 0 1.02 Bi-214 I pCi'g I0 0.35 Ce- 144 I pClIg 0 Co-58 pCi/g 0 tCo-60 4.84 pCilg 0 0.42 Cs-134 6.71 pCilg 0 I

Cs-137 12.24 pCilg 0 0.82 1

Eu-152 12.06 pCilg 0 1

Fe-59 pCilg 0 1

K-40 pCilg 0 14.82 1

Mn-54 21.66 pCilg 0 1

Nb-95 pCilg 0 1

Pb-212 pCilg 0 0.80 1

Pb-214 pCilg 0 0.46 Ru- 103 pCilg 0 Ru-106 68.21 pCi/g . 0 Sb-I 24 pCi/g 0 I

Sb-I 25 37.73 pCilg

• 0 I :0 TI-208 pCi/g 0.88 1 ' 0 Zn-65 pCi/g 1 .0 Zr-95 pCilg

Table 4 Page l of 8 Rad OOL-03 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) IA-3 (620) OF-241 (409) OF-242 (410) OF-243 (411) OF-244 (412) OF-245 (413)

Sample ID IATS-3 OFTS-241 OFTS-242 OFTS-243 OFTS-244 OFTS-245 Date Sampled 5/20/1993 11/22/1994 11/22/1994 11/22/1994 11/22/1994 11/23/1994 Ac-228 Ag-108m 0.058 UM 0.039 UM 0.056 UM 0.064 UM 0.049 UM Ag-1 lOrn Am-241 Bi-212 Bi-214 Ce-141 Ce-144 Co-58 0.079 UM 0.078 UM 0.063 UM 0.061 UM 0.065 UM 0.055 UM Co-60 0.0876 UM 0.14 0.0814 UM 0.218 1.384 0.0689 UM Cs-134 0.063 UM 0.07 UM 0.049 UM 0.062 UM 0.064 UM 0.047 UM Cs-137 0.0841 UM 0.105 UM 0.0789 0.25 0.557 0.193 Eu- 152 Fe-59 K-40 Kr-85 Mn-54 0.078 UM 0.067 UM 0.075 UM 0.09 UM 0.054 UM Nb-95 Pb-212 Pb-214 Ra-226 Ru- 103 Ru- 106 Sb- 124 Sb- 125 TI-202 TI-208 Zn-65 Zr-95 SOF 0.029 0.006 0.065 0.332 0.016

-J U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 8 Rad OOL-03 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-246 (414) OF-247 (415) OF-248 (416) OG001-017 (101) OGOOI-018 (102)

Sample ID OFTS-246 OFTS-247 OFTS-248 OGOOIGUFDO17 OGOOIGUFDO18 Date Sampled 11/23/1994 11/23/1994 11/23/1994 7/1/1998 7/1/1998 Ac-228 0.956 0.8884 Ag-108m 0.051 UM 0.055 UM 0.05 UM -0.005035 U -0.00373 U Ag-llOm 0.02031 U -0.004885 U Am-241 0U 0U Bi-212 0.7685 0.8147 Bi-214 0.4649 0.5277 Ce-141 Ce-144 0.2213 U 0.02653 U Co-58 0.064 UM 0.061 UM 0.063 UM 0.01424 U -0.02556 U Co-60 0.0727 UM 0.0679 UM 0.0735 UM -0.01845 U -0.02803 U Cs-134 0.061 UM 0.051 UM 0.052UM -0.112U 0.01311 U Cs-137 0.295 0.365 0.0745 UM 0.02034 U 0.301 Eu-152 Fe-59 -0.006264 U 0.04658 U K-40 20.8 3.433 Kr-85 Mn-54 0.07 UM 0.067 UM 0.061 UM 0.008977 U -0.01061 U Nb-95 -0.001901 U 0.007386 U Pb-212 0.8693 0.791 Pb-214 0.5243 0.4887 Ra-226 2.038 Ru-103 -0.01432 U -0.01444 U Ru-106 -0.005241 U -0.06671 U Sb-124 0.004415 U -0.008849 U Sb-125 TI-202 TI-208 0.9351 0.6412 Zn-65 0.1437 U  ; -0.01251 U Zr-95 -0.06906 U 0.03369 U SOF 0.024 0.03 0.025 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 3 of 8 Rad OOL-03 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OG001-020 (103) OGOOI-021 (104) 0G001-022 (105) - OGOOI-023 (106)

Sample ID OGOOlGUFDO20 OGOO1GUFDO21 OGOOlGUFDO22 OGOOlGUFD023 Date Sampled 7/2/1998 7/2/1998 7/211998: 7/2/1998 Ac-228 0.7051 0.8985 0.9111 0.738 Ag-108m -0.01754 U -0.01594 U -0.002411 U 0.004951 U Ag-110m -0.03005 U 0.02281 U 0.01539 U 0.001324 U Am-241 0U 0U 0U l U Bi-212 0.7035 0.6934 0.6218 Bi-214 0.5382 0.5612 0.6707 Ce-141 Ce-144 -0.1351 U 0.09454 U 0.04011 U 0.05655 U Co-58 0.01928 U -0.05133 U -0.02181 U 0.005999 U Co-60 -0.009757 U -0.02395 U 0.001978 U 0.01821 U Cs-134 -0.08563 U 0.02436 U -0.03543 U -0.0345 U Cs-137 0.3919 0.03654 U 0.06233 0.05753 U Eu-152 Fe-59 -0.06069 U 0.02358 U 0.01729 U 0.05051 U K-40 21.33 20.19 22.11 0 U Kr-85 Mn-54 0.003528 U -0.005918 U 0.02761 U 0.01561 U Nb-95 0.09007 0.03283 U 0.03355 U 0.07317 Pb-212 0.7148 0.7598 0.996 0.7203 Pb-214 0.5826 0.6288 0.5805 0.4465 Ra-226 1.395 1.664 1.277 U 1.1 U Ru-103 -0.004133 U -0.0003132 U 0.01399 U IK) 0.01654 U Ru-106 0.1871 U 0.09412 U 0.07054 U -0.06671 U Sb-124 0.02586 U -0.009264 U 0.07255 U -0.01022 U Sb-125 TI-202 TI-208 0.5473 0.8796 0.8529 Zn-65 -0.0364 U -0.01612 U -0.07645 U 0U Zr-95 -0.01974 U 0.01167 U -0.02667 U 0.04673 U SOF 0.032 0.005 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 4 of 8 Rad OOL-03 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OG001-024 (107)' OGOOI-025 (108) , ogOO-026 (109) ogOO-027 (110): ogOO-029,(111)

Sample ID OGOOI GUFDO24 OGOOIGUFD025 -' ogOOlgufdO26 ogOOlgufdO27 ogOOl gufdO29 Date Sampled 7/2/1998 7/6/1998 7/6/1998 7/6/1998 7/22/1998 Ac-228 - 1.025 0.8208 0.8644 0.9665 0.9081 Ag-108m 0.01517 U -0.0172 U -0.00239 U -0.01174 U 0.01672 U Ag- lOrn -0.01902 U -0.01942 U 0.02386 U -0.001101 U 0.006192U Am-241 OU OU OU OU OU Bi-212 0.9398 0.875 0.9086 0.9616 1.174 Bi-214 0.5494 0.5152 0.5355 0.663 Ce-141 Ce-144 -0.1101 U 0.2143 U 0.03604 U 0.006585 U -0.128 U Co-58 -0.007119 U -0.03161 U -0.007234 U -0.049 U -0.004942 U Co-60 -0.007005 U -0.04644 U -0.01891 U -0.03115 U - -0.02688 U Cs-134 0.0171 U -0.1382 U -0.06926 U 0.002359 U -0.02036 U Cs-137 -0.01555 U '0.15 0.01816U 0.2218 - 0.09394 Eu-152 0.6309 U Fe-59 0.0285 U 0U -0.12 U -0.06999 U -0.0226 U K-40 0.4526 22.96 18.56 21.38 24.35 Kr-85 Mn-54 -0.05562 U 0.006025 U -0.01763 U , -0.02571 U 0.008365 U Nb-95 0.01821 U -0.06366 U -0.02966 U -0.06156 U 0.03699 U' Pb-212 0.9729 0.9212 0.8113 0.8326 0.9107 Pb-214 0.5555 0.6172 0.5392 0.6159 0.5934 Ra-226 2.646 1.072 U 2.691 Ru-103 0.009607 U -0.04489 U -0.01077 U 0.01266 U 0.01007 U Ru-106 0.04407 U 0.1546 U -0.06705 U 0.049 U 0.2882 U Sb-124 0.03301 U 0.02151 U -0.06536 U -0.006443 U 0.02434 U Sb-125 Tl-202 Tl-208 0.8544 0.8024 0.8281 0.7125 Zn-65 -0.04032 U -0.04414 U 0.01891 U -0.1505 U -0.1 102 U, Zr-95 -0.01027 U 0.006212 U 0.02783 U -0.03662 U 0.03391 U' SOF 0.012 . 0.018 0.008 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed -

Table 4 Page 5 of 8 Rad OOL-03 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) ogOOl-030 (112) OGOOI-031 (113) 0G001-032 (114) OGOOI-035 (115)

Sample ID ogOO1 gufdO3O OGOO1GUFDO31 OGOOIGUFDO32 OGOOIGUFDO35 Date Sampled 7/6/1998 7/6/1998  : 716/1998 7/2/1998 Ac-228 0.9444 0.9414 1.084 0.9374 Ag-108m 0.0001693 U -0.003373 U 0.02757 U -0.008405 U Ag-110 n -0.02759 U -0.01133 U -0.003854 U 0.03782 U Am-241 0U 0U 0U 0U Bi-212 0.565 U 1.173 0.9258 Bi-214 0.5969 0.5677 Ce-141 Ce-144 0.3708 -0.04473 U -0.2223 U 0.2427 U Co-58 -0.01363 U 0.03007 U -0.009069 U -0.0195 U Co-60 0.03065 U -0.04453 U -0.008435 U -0.02153 U Cs-134 0.02122 U 0.02592 U -0.1667 U 0U Cs-137 0.2245 0.09668 0.0752 0.1829 Eu-152 Fe-59 0.05848 U 0.01579 U -0.05133 U -0.03761 U K-40 21.62 26.17 21.75 2.086 Kr-85 5.115 U Mn-54 0.03779 U 0.009325 U 0.03043 U -0.004245 U Nb-95 0.01031 U 0.05353 U -0.016 U 0.0322 U Pb-212 0.7966 0.8714 1.054 0.9131 Pb-214 0.5688 0.6994 0.5375 0.5164 Ra-226 2.385 2.209 Ru-103 -0.01778 U 0.01339 U 0.002444 U -0.01118 U Ru-106 0.07122 U -0.1078 U 0.1053 U 0U Sb-124 -0.01769 U 0.003606 U -0.03489 U 0.01284 U Sb-125 TI-202 0.0637 U TI-208 0.8911 0.8625 1.039 0.884 Zn-65 0.06715 U -0.1541 U -0.129 U -0.1086 U Zr-95 0.02414 U 0.05829 U 0.02758 U -0.008999 U SOF 0.018 0.008 0.006 0.015 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 6 of 8 Rad OOL-03 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OGOOI-036 (116) 0G002-001 (51) 0G002-002 (52) 0G002-003 (53) OG002-004 (54)

Sample ID OGOOIGUFD036 OGO02GUFD0OI OG002GUFDO02 OG002GUFDO03 OGO02GUFDO04 Date Sampled 7/6/1998 7/7/1998 7/7/1998 7/7/1998 7/7/1998 Ac-228 0.92 0.7627 - 1.055 0.8021 0.9494 Ag-108m - 0.00433 U -0.008408 U 0.004356 U -0.005341 U -0.009022 U Ag- lOim 0.04012 U 0.03186 U -0.03285 U 0.02598 U -0.02166 U Am-241 0U 0U 0U 0U 0U Bi-212 0.608 U 0.8524 0.6843 1.154 :0.689 Bi-214 0.4998 0.495 Ce-141 0.08046 Ce-144 0.1722 U -0.03567 U 0.05124 U -0.04114 U -0.3567 U Co-58  :-0.00277 U 0.001639 U - 0.01079 U 0.02709 U -0.007003 U -

Co-60 -0.03655 U 0.02625 U 0.02128 U -0.01279 U 0.02881 U Cs-134 0U -0.1221 U -0.05705 U 0U -0.02442 U Cs-137 0.204 0.05009 0.02685 U 0.004772 U 0.08674 Eu-152 Fe-59 -0.1084 U -0.04467 U -0.05596 U 0.009888 U 0U K40 1.79 18.37 17.16 0.9725 0.7215 Kr-85 Mn-54 -0.03046 U . 0.0007781 U 0.01492 U -0.005685 U 0.00832 U Nb-95 0.03277 U 0.004848 U 0.0547 U -0.0068 U 0.01572 U Pb-212  ; 0.9502 0.8443 1.004 , 0.7957 0.9824 Pb-214 0.5834 0.4811 0.4752 0.4891 0.4878 Ra-226 1.026 U 1.322 1.86 1.092 U 1.279 Ru-103 -0.01489 U 0.02149 U 0.009449 U 0.01941 U 0.01702 U Ru-106 0.1179 U -0.1696 U 0.1028 U -0.201 U 0.02088 U Sb-124 -0.03056 U -0.007385 U 0.01199 U 0U -0.02071 U Sb-125 Tl-202 Tl-208 0.8642 0.7352 0.8798 0.805 0.8384 Zn-65 0.1003 U 0.04132 U -0.1124 U -0.043 U 0.03803 U Zr-95 -0.01592 U -0.004705 U

• 0.0003861 U -0.01345 U - 0.03259 U SOF 0.017 0.004 __ 0.007 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 7of 8 Rad OOL-03 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G002-005 (55) 0G002-006 (56) 0G002-007 (57) 0G002-008 (58) 0G002-009 (59)

Sample ID OGO02GUFDO05 OG002GUFDO06 OG002GUFDO07 OGO02GUFDOOS OGO02GUFDO09 Date Sampled 7/7/1998 - 7/7/1998 7/7/1998 7/7/1998 7/8/1998 Ac-228 0.9356 0.7003 1.092 0.8615 0.8655 Ag-108m -0.0158 U -0.02088 U -0.02433 U 0.02182 U -0.03522 U Ag-110mI -0.02755 U -0.01576 U 0.00896 U 0.01572 U -0.02142 U Am-241 0U 0U 0U 0U 0U Bi-212 0.9204 1.259 Bi-214 0.4392 0.4703 Ce-141 Ce-144 -0.09465 U -0.08967 U -0.08332 U 0.07441 U -0.04103 U Co-58 0.01637 U 0.004937 U 0.0132 U -0.03095 U 0.01348 U Co-60 -0.02283 U -0.008824 U 0.005891 U 0.003518 U -0.005537 U Cs-134 0.03659 U 0.08902 -0.01711 U 0.01682 U 0U Cs-137 0.02599 U 0.1185 0.02549 U 1.077 -0.04447 U Eu-152 0.3406 Fe-59 0.03051 U -0.08327 U -0.02168 U -0.02106 U -0.01492 U K-40 -0.07123 U 18.68 18.23 16.6 -0.08631 U Kr-85 Mn-54 -0.004955 U -0.003548 U 0.002222 U -0.01151 U 0.0331 U Nb-95 -0.0007205 U -0.008291 U 0.01383 U 0.06017 -0.02176 U Pb-212 0.8874 0.8157 0.8582 0.7924 0.6399 Pb-214 0.6019 0.4865 0.4575 0.4904 0.445 Ra-226 1.445 1.711 1.724 Ru-103 -0.01155 U -0.00007234 U -0.03965 U 0.003835 U 0.03703 Ru-106 0.2112 U -0.07316 U 0.07997 U -0.1748 U 0.4253 Sb-124 -0.0405 U 0.009763 U 0.02116 U -0.007708 U 0U Sb-125 0.0153 U TI-202 TI-208 0.5501 0.5958 Zn-65 0.1169 -0.07866 U -0.1154 U -0.06268 U 0.1135 U Zr-95 0.01092 U 0.04531 U 0.03006 U 0U -0.002134 U SOF 0.023 0.116 0.006 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 8 of 8 Rad OOL-03 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G002-010 (60) ogOO2-011 (61) TS477 (3209)

Sample ID OGO02GUFDO1O ogO02gufdOIl TS477 Date Sampled 7/8/1998 7/8/1998 6/8/1998 Ac-228 0.9527 1.015 1.193 Ag-108m 0.01817 U 0.01791 U 0.008945 U Ag-llOm 0.02529 U -0.02411 U 0.01707 U Am-241 OU OU OU Bi-212 0.7087 0.6628 1.285 Bi-214 0.413 0.4547 0.4866 Ce-141 Ce-144 0.1331 U 0.02779 U -0.141 U Co-58 0.005029 U -0.002796 U 0.02056 U Co-60 -0.02445 U 0.01653 U -0.014 U Cs-134 -0.1103 U 0.02986 U -0.05656 U Cs-137 0.03521 U 0.004498 U -0.007246 U Eu-152 Fe-59 -0.007231 U -0.02514 U 0.03222 U K-40 18.19 18.48 19.03 Kr-85 Mn-54 0.001997 U -0.0298 U -0.02584 U Nb-95 0.07728 0.01973 U -0.008555 U Pb-212 0.9653 0.9843 1.259 Pb-214 0.5225 0.5011 0.5688 Ra-226 2.594 2.071 1.681 Ru-103 0.01267 U -0.03541 U 0.01047 U Ru-106 0.03483 U -0.0004081 U 0.02002 U Sb-124 -0.03186 U 0.002551 U -0.02039 U Sb-125 Tl-202 Tl-208 1.061 0.8164 0.9821 Zn-65 -0.09937 U -0.01465 U 0.003501 U Zr-95 -0.03019 U 0.02489 U -0.00114 U SOF . -

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Historical Site Assessment and Classification Summary SurveyIArea Name: Sherman Station & Surrounding Area Designator: OOL-04 Survey Area Description Survey area OOL,0 4 consists of the open land surface area surrounding Sherman Station, property owned by US Gen. Survey area OOL-04 contains about 17923 square meters of soil and asphalt surface area.

Survey area OOL-04 is bounded by the Deerfield River on the north, OOL-03 on the east, both properties owned by US Gen., OOL-02 on the south and OOL-05 on the west property also owned by US Gen.

Sub-surface systems that traverse or connect within OOL-04 include:

• Abandoned street lighting electrical cable.

Sanitary sewers.

Items of note located within or adjacent to OOL-04 include:

• A portion'of ihe H T and W railroad bed where it crossed the site

• Security light pole #3.

• Temporary office trailers.

• Temporary storage trailers.

• The Sheiman Dam access road.

• The Sherman Hydro-electric Station and support structures Page l of 5

9 Historical Site Assessment and Classification Summary Survey Area Name: Sherman Station & Surrounding Area Designator: OOL-04 Survey Area History Survey area OOL,04 is not part of the RCA. Survey area OOL-04 was not used for storing radioactive material or processing radioactive waste. There are no radioactive, systems present in OOL-04.

Prior to discontinuance of railroad access to the site, spent fuel and high level radioactive waste such as irradiated control rods were shipped using the railroad.

Survey area OOL-04 is likely to be minimally impacted by low levels of radioactivity as a result of surface water run-off.

A wet area located south of and up-slope from Sherman Station identified, as Sherman Spring is known to have contained tritium. The tritium identified in Sherman Spring is assumed to have originated from a leak in the IX Pit that existed during early years of plant operation. The leak from the IX Pit was stopped in May of 1965.

TranslocationPathways The likely modes and vectors of contamination translocation 'associated with OOL,04 are via surface run-off from survey areas up slope or as a result of ground water flow.

Site modifications performed within survey area OOL-04 include:

• Raising the elevation of Sherman Dam

• Re-location of the security perimeter fence.

• Installation of the security lighting and camera system.

Modifications performed at the YNPS site in support of decommissioning that changed the configuration of OOL,04 include:

• Change of use for the lower parking lot from vehicle parking to radiation control area/radioactive material area. This area is also used as a receiving area for empty radioactive material shipping containers and as a radioactive shipment preparation area.

Scoping/Characterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan (Ref 1).

Decommissioning No decommissioning activities have been performed for survey area OOL-04.

Page 2 of 5

Historical Site Assessment and Classification Summary Survey Area Name: Sherman Station & Surrounding Area Designator: OOL-04 Findings Survey area OOL-04 is a land area that is located in the non-RCA portion of the site.

Survey area OOL-04 is minimally impacted with locations likely to contain radioactivity concentrations at a small fraction of DCGL.

The radionuclide mix likely to be present in OOL-04 includes all radionuclides identified in the radioactive systems of the plant (Ref 2).-The primary radionuclides of concern for survey area OOL-04 are Co-60, Cs-137, Ag-108m, Sr-90 and tritium.

CurrentStatus OOL-04 continues to be potentially impacted by radioactive material migration due to surface run-off from within the RCA, radioactive material packaging and transport and by decommissioning activities.

A soil sample location map (Figure 5) has been prepared to show the distribution of sampling locations in OOL-04. Only samples representative of soils still present are included on the map (samples of soils representative of soils removed during remediation activities are not presented). Three survey media were assessed in OOL-04, Asphalt, Sediment and Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as 'key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL. There are separate sets of Tables 1-4 for each survey media. All are evaluated as fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL-04 is presented at the end of Table 1 for each survey medium. The results are summarized below.

Asphalt: Mean SOF is none detectable.

Maximum SOF for a single asphalt sample is none detectable.

Minimum SOF for a single asphalt sample is none detectable.

Sediment: Mean SOF is 0.009.

Maximum SOF for a single sediment sample is 0.009. (key# 346) near Sherman Station.

Minimum SOF for a single sediment sample is 0.009. (key# 346) near Sherman Station.

Page3 of 5

Historical Site Assessment and Classification Summary Survey Area Name: Sherman Station & Surrounding Area Designator: OOL-04 Soil: Mean SOF is 0.020.

Maximum SOF for a single soil sample is 0.035. (key# 420) north of the Sherman dam access road.

Minimum SOF for a single soil sample is 0.006. (key# 93) north of the Sherman dam access road.

Classification Statement Based upon the historical use and radiological conditions associated with this survey area OOL-04 is identified as a Class 3 Area.

Page 4 of 5

Historical Site Assessment and Classification Summary Survey Area Name: Sherman Station & Surrounding Area Designator: OOL-04 Drawings Figure 7-IA References

1. YNPS Decommissioning Plan, Rev. 0.0.

2. "Radionuclides for Building Surfaces and Soil DCGL Determinations," YA-REPT-

_ 00-001-03 Page 5 of 5

Underground Systems OOL-04 Structure / System Component Description Location Impacted?

Sewers from manhole S2 going NW -85' to manhole S3 S3 - -10' E and -120' N of NW,.

then going WNW -75' to manhole S4; a line from corner of Office bldg; S4 - -63' W S4 going NNE -10' then turning E -33' then and -148' N of NW corner of Office apparently ending; then from S4 going WNW bldg

-148' to manhole S5 Water from tee W4 (OOL-02) curving N and W -140' to W3 - -135' N and -10' W of NW tee W3 which has one short branch to the N and corner of Office bldg capped and the other branch S to tee W2_

Page 1 of I C C C

Page l or l Table 1 Sum of Fractions OOL,04 -- Asphalt Yankee Nuclear Power Station Rowe, MA Radionuclides for which SOF is calculated were not present in samples.

Table 2 Page l of 1 Statistical Data Summary - OOLA4 -- Asphalt Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ag-108m pCi/g 0 1 0.000 Ag-i1lm pCi/g 0 1 0.000 An-241 pCi/g 0 1 0.000 Bi-212 pCi/g 0 1 0.000 Bi-214 pCi/g 1 1 0.511 0.511 0.511 0.511 Cc-144 pCi/g 0 1 0.000 Co-58 pCi/g 0 1 0.000 Co-60 pCi/g 0 1 0.000 Cs-134 pCi/g 0 1 0.000 Cs-137 pCi/g 0 1 0.000 Fe-59 pCi/g 0 1 0.000 K-40 pCi/g I 1 5.504 5.504 5.504 5.504 Mn-54 pCi/g 0 1 0.000 Nb-95 pCi/g 0 1 0.000 Pb-212 pCi/g I 1 0.318 0.318 0.318 0.318 Pb-214 pCi/g I 1 0.622 0.622 0.622 0.622 Ra-226 pCi/g 0 1 0.000 Ru-103 pCi/g 0 1 0.000 Ru- 106 pCi/g 0 1 0.000 Sb-124 pCi/g 0 1 0.000 Ti-208 pCi/g I 1 0.227 0.227 0.227 0.227 Zn-65 pCi/g 0 1 0.000 Zr-95 pCilg 0 1 0.000

Pagelof 1 Table 3 Summary of Detected Results Above Criteria OO1.04 -- Asphalt Yankee Nuclear Power Station Rowe, MA DCGL._Asphalt

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ag-i 08m I 8.52 I PCilg Ag-I lOim Am-241 44.35 Bi-212 . 1 IPCilg Bi-214 pCilg 0.51 Ce-144 pCi/g Co-58 pCi/g Co-60  !: ' 4.84 . pCilg Cs-134 I - I !' 6.71 pCilg Cs-137 I 12.24 pCilg Fe-59 I :pCilg

• I K-40 pCilg 5.50

• I Mn-54 21.66 II ., .pCilg Nb-95 pCilg 1

Pb-212 , pCilg 0.32 I

Pb-214 .pCilg 0.62 I

Ra-226 pqi/g I

Ru-103 I pCilg 1

Ru- 106 68.21 pdilg Sb-I 24 pCilg x TI-208 pCilg 0.23 Zn-65 Ii pCilg Zr-95 pCi/g

Table 4 Page I of I Rad OOL-04 -Asphalt (pCi/g).

Yankee Nuclear Power Station Rowe, MA Station (Key) OGO01-001 (85) Il Sample ID, OGOOIGUFAOOI Date Sampled 7/1/1998 Ag-108m -0.00148 U Ag-110m 0.002148 U Am-241 0U Bi-212 0.4235 U Bi-214 0.5107 Ce-144 -0.1695 U Co-58 -0.00557 U Co-60 0.000000001188 U Cs-134 -0.0101 U Cs-137 -0.01374 U Fe-59 -0.01453 U K-40 5.504 Mn-54 0.005252 U Nb-95 0.01962 U Pb-212 0.318 Pb-214 0.6216 Ra-226 0.745 U Ru-103 -0.001569 U Ru-106 -0.1142 U Sb-124 0.001548 U TI-208 0.2269 Zn-65 0.04828 U Zr-95 0.008177 U U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Asphalt Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Pagel of I Table I Sum of Fractions OOI,04 -- Sediment Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 346 OF-57 OFTS-57 0.009 Min 0.009 Max 0.009' Mean 0.009

Table 2 Page I of I Statistical Data Summary - 00104 -- Sediment Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Co-58 pCi/g 0 1 0.000 Co-60 pCi/g 0 1 0.000 Cs-1 34 pCi/g 0 1 0.000 Cs-137 pCi/g 1 1 0.105 0.105 0.105 0.105 Mn-54 pCi/g 0 1 0.000 Q. (_ C

Page I of I Table 3 Summary of Detected Results Above Criteria OOL-04 -- Sediment Yankee Nuclear Power Station Rowe, MA DCGL_Sediment

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detecte d Co-58 0 I !Pci/g 0 Co-60 0 4.84 pCi/g 0 Cs-I 34 0 I 6.71 pCi/g 0 Cs-137 I I 12.24 pCi/g 0 0.11 Mn-54 0 I 21.66 pCi/g 0 3

Table 4 Page 1 of I Rad OOL-04 -- Sediment (pCi/g)-

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-57 (346)

Sample ID OFTS-57 Date Sampled 5/17/1993 Co-58 0.065 UM Co-60 0.08 UM Cs-134 0.057 UM Cs-137 0.105 Mn-54 0.067 UM SOF 0.009 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Pagelof I Table 1 Sum of Fractions OOL.04 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 420 OF-252 OFTS-252 0.035 418 OF-250 OFTS-250 0.018 347 OF-58 OFTS-58 0.030 99 OGOOI-015 OGOOIGUFDO15 0.010 95 OGOOl-01 OGOOIGUFDO11 0.020

. I 93 OGOOI-009 OGOOIGUFDO09 0.006 Min 0.006 Max 0.035 Mean 0.020

Table 2 Page l of I Statistical Data Summary - 0004 -- Soil Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 6 6 0.982 0.045 0.918 1.039 0.994 Ag-108m pCi/g 0 11 0.000 Ag-i lOm pCi/g 0 6 0.000 Am-241 pCi/g 0 6 0.000 Bi-212 pCi/g 5 5 0.887 0.163 0.687 1.020 0.976 Bi-214 pCi/g 6 6 0.537 0.075 0.474 0.679 0.514 Ce-144 pCi/g 0 6 0.000 Co-58 pCi/g 0 13 0.000 Co-60 pCi/g 0 13 0.000 Cs-134 pCi/g 0 13 0.000 Cs-137 pCi/g 6 13 0.242 0.136 0.076 0.424 0.228 Fc-59 pCi/g 0 6 0.000 K-40 pCi/g 6 6 15.435 7.208 1.020 20.190 17.610 Mn-54 pCi/g 1 13 0.033 0.033 0.033 0.033 Nb-95 pCi/g 0 6 0.000 Pb-212 pCi/g 6 6 0.896 0.103 0.696 0.972 0.929 Pb-214 pCi/g 6 6 0.520 0.040 0.465 0.567 0.525 Ra-226 pCi/g 3 3 1.429 0.280 1.176 1.730 1.380 Ru-103 pCi/g 0 6 0.000 Ru-106 pCi/g 0 6 0.000 Sb-124 pCi/g 0 6 0.000 Tl-208 pCi/g 5 5 0.915 0.073 0.863 1.041 0.896 Zn-65 pCi/g 0 6 0.000 Zr-95 pCi/g 0 6 0.000 C C C

Pagelof I Table 3 Summary of Detected Results Above Criteria 001r04--SoiI Yankee Nuclear Power Station Rowe, MA DCGL.Soil

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ac-228 6 6 pCilg 0 1.04 Ag-108m 0 11 8.52 pCi/g 0 Ag-l I Om 0 6 pCi/g 0 An-241 0 6 44.35 pCi/g 0 Bi-212 15 5 pCi/g 0 1.02 Bi-214 6 6 pCilg 0 0.68 Ce-144 0 6 pCi/g 0 Co-58 0 13 pCi/g 0 Co-60 0 13 4.84 pCi/g 0  ; -i Cs-134 0 13t 6.71 pCi/g 0 Cs-137 6 13 12.24 pCi/g 0 0.42 Fe-59 6 pCi/g *0 K-40 16 .6 pCilg 0 20.19 Mn-54 1 i3 21.66 pCi/g '0 0.03 Nb-95 0 6 pCi/g !0 Pb-212 6 6 pCi/g 0 0.97 Pb-214 6 6 pCi/g 0 0.57 Ra-226 .3 3 pCi/g 0 1.73 Ru-103 0 6 pCi/g 000 Ru- 106 0 6 68.21 pCi/g O Sb-124 6 pCi/g :0 TI-208 5 5 pCi/g 0 1.04 Zn-65 ;0 6 pCi/g O Zr-95 6 pCilg

Table 4 Page 1 of3 Rad OOL-04 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-249 (417) OF-250 (418) OF-252 (420) OF-253 (421) OF-254 (422) OF-55 (344)

Sample ID OFTS-249 OFTS-250 OFTS-252 OFTS-253 OFTS-254 OFTS-55 Date Sampled 11/23/1994 11/23/1994 12/5/1994 12/5/1994 12/5/1994 5/17/1993 Ac-228 Ag-108m 0.051 UM 0.053 UM 0.055 UM 0.038 UM 0.049 UM Ag-1 10ml Am-241 Bi-2 12 Bi-214 Ce-144 Co-58 0.061 UM 0.064 UM 0.071 UM 0.048 UM 0.054 UM 0.089 UM Co-60 0.0731 UM 0.0745 UM 0.0724 UM 0.0654 UM 0.0791 UM 0.122 UM Cs-134 0.057 UM 0.068 UM 0.064 UM 0.043 UM 0.052 UM 0.093 UM Cs-137 0.076 UM 0.224 0.424 0.0576 UM 0.0926 UM 0.0905 UM Fe-59 K-40 Mn-54 0.056 UM 0.071 UM 0.071 UM 0.046 UM 0.065 UM 0.107 UM Nb-95 Pb-212 Pb-214 Ra-226 Ru-103 Ru- 106 Sb-124 TI-208 Zn-65 Zr-95 SOF 0.018 0.035 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 3 Rad OOL-04 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-58 (347) OGOO1-009 (93) OGOOI-011 (95) OGO01-013 (97) OGOOI-014 (98)

Sample ID OFTS-58 OGOO1GUFDO09 OGO01GUFD011 OGO01GUFD013 OGOO1GUFDO14 Date Sampled 5/17/1993 7/1/1998 V': 7/1/1998 . 7/1/1998 7/1/1998 Ac-228 0.9993 0.9183 - 0.9896 1.005 Ag-108m 0.02601 U -0.009533 U 0.00618 U 0.00009283 U Ag-110m 0.004374 U 0.004811 U -0.02268 U 0.002892 U Am-241 0U 0U  : U - 0U Bi-212 0.9763 0.7331 1.017 Bi-214 0.4742 0.6787 0.5557 0.483 Ce-144 -0.08076 U 0.04514 U -0.1944 U -0.04085 U Co-58 0.089 UM -0.00107 U -0.0121 U 0.003033 U -0.009647 U Co-60 0.12 UM 0.002766 U 0.003944 U 0.002172 U -0.007427 U Cs-134 0.076 UM -0.0331 U , -0.02047 U -0.02445 U -0.05696 U Cs-137 0.372 0.0757 0.232 -0.01733 U 0.03504 U Fe-59 -0.01157 U 0.04481 U 0.006027 U 0U K-40 16.38 20.19 17.62 1.02 Mn-54 0.101 UM 0.009868 U  ; 9.0.03256 -0.007897 U -0.02511 U Nb-95 0.01436 U 0.007367 U -. 0.01782 U 0.02487 U Pb-212 0.8924 0.901 V 0.6964 0.9724 Pb-214 0.5479 0.4885 0.5022 0.5668 Ra-226 1.176 1.38 Ru-103 0.00271 U . 0.002698 U 0.006936 U 0.002799 U Ru-106  ; -0.08457 U 0.04418 U 0.2282 U 0U Sb-124 0U 0.01647 U 0.01647 U - 0.01136 U T1-208 1.041 0.9057 0.8955 0.8634 Zn-65 0.08543 U 0.0006225 U - -0.003723 U 0.1043 U Zr-95 0.0006676 U 0.01343 U -0.01442 U 0.01698 U SOF 0.03 0.006 0.02 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 3 of 3 Rad OOL-04 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OG001-015 (99) 0G012-025 (937) I Sample ID OGOOIGUFDO15 OGO12GUFDO25 Date Sampled 7/1/1998 - :10/7/1998-:'

Ac-228 1.039 0.94 Ag-108m -0.0149 U -0.0237 U Ag-110m -0.008725 U 0.0175 U Am-241 0U 0U Bi-212 0.6867 1.02 Bi-214 0.5197 0.508 Ce-144 -0.01714 U 0.0717 U Co-58 0.006064 U 0.01 U Co-60 0.01963 U 0.00124 U Cs-134 -0.04641 U -0.00192 U Cs-137 0.1217 0.0074 U Fe-59 -0.07991 U -0.0106 U K-40 19.8 17.6 Mn-54 0.0002788 U 0.0266 U Nb-95 -0.02611 U 0.00358 U Pb-212 0.9561 0.958 Pb-214 0.5486 0.465 Ra-226 . 1.73 Ru-103 0.005639 U -0.0148 U Ru-106 -0.4312 U -0.0976 U Sb-124 -0.000648 U 0U TI-208 0.87 Zn-65 -0.05205 U 0.00772 U Zr-95 0.003969 U -0.00405 U SOF 0.01 J

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Deerfield River'Frontige ' Designator: OO-05 Survey Area Description Survey area OOL-05 consists of the US Gen. owned land area located between, the YAEC property and the Deerfield River. Survey area OOL.05 contains about 28637 square meters of soil and asphalt surface area.

Survey area OOL-05 is bounded by the Deerfield River on the north, 00T04 on the east, both properties owned by US Gen.- by'OOL-06 on the south and non-impacted US Geri.

property on the west.

Sub-surface systems that traverse or connect within OOL-05 include:

• Sanitary sewers system (tank, pump house and leaching fields, both the active and abandoned).

• The west storm drain system, Items of note located within or adjacent to OOL-05 include:

• A portion of the H T and W railroad bed where it crossed the site

• - Temporary office trailers.

• Temporary storage trailers.

• The Sherman Dam, access road.

• The YNPS lower parking lot

• Temporary storage locations for surplus material Page I of 5

Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Deerfield River Frontage Designator: OOL-05 Survey Area History Survey area OOL-05 is not part of the RCA. Survey area OOL-05 was not used for storing radioactive material or processing radioactive waste. There are no radioactive systems present in OOL.05.

Survey area OOL-05 was used as a material storage area by YNPS. Survey area OOL-05 is likely to be minimally impacted by low levels of radioactivity as a result of surface water run-off and material storage.

Site modifications performed within survey area OOL,05 include:

• Raising the elevation of Sherman Dam

• Construction of the YNPS lower parking lot

• Construction of the YNPS new leaching field.

Modifications performed at the YNPS site in support of decommissioning that changed the configuration of OOL-05 include:

• Placement of concrete blocks as vehicle security barriers in the Sherman Dam access road.

• Temporary storage of YNPS surplus materials Scoping/Characterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan (Ref 1).

Decommissioning No decommissioning activities have been performed for survey area OOL-05.

Page 2 of 5

Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Deerfield River.Frontage Designator: QOLO05 Findings Survey area OOL-05 is a land area that is located in the non-RCA portion of the site.

Survey area OOL-05 is minimally impacted by surface water run-off, storm drain system, and concentration low levels of radioactivity present in the sanitary sewer system solids.

Survey area OOL-05 is likely to contain residual radioactivity concentrations at a small fraction of DCGL.

The radionuclide mix likely to be present in OOL-05 includes all radionuclides identified in the radioactive systems of the plant (Ref 2). The primary radionuclides of concern for survey area OOL-05 are Co-60, Cs-137, Ag-108m, Sr-90 and tritium.

CurrentStatus OOL-05 continues to be potentially impacted by radioactive material migration due to surface water run-off, storm drain effluents, by operation of the sanitary sewer system, material storage and by decommissioning activities.

A soil sample location map (Figure 6) has been prepared to show the distribution of sampling locations in OOL-05. Only samples representative of soils still present are included on the map (samples of soils representative of soils removed during remediation activities are not presented). Three survey media were assessed in OOL-05, Sediment, Sod and Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL. There are separate sets of Tables 1-4 for each survey media. All are evaluated as fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL,05 is presented at the end of Table 1 for each survey medium. The results are summarized below.

Sediment: Mean SOF is 0.038.

Maximum SOF for a single sediment sample is 0.107. (key# 2975)

Minimum SOF for a single sediment sample is 0.009. (key# 2977)

Sod: Mean SOF is none detectable.

Maximum SOF for a single sod sample is none detectable.

Minimum SOF for a single sod sample is none detectable.

Page 3 of 5

Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Deerfield River Frontage Designator: OOL-05 Soil: Mean SOF is 0.018.

Maximum SOF for a single soil sample is 0.034. (key# 345)

Minimum SOF for a single soil sample is 0.001. (key# 128).

ClassificationStatement Based upon the historical use and radiological conditions associated with this survey area OOL,05 is identified as a Class 3 Area.

,, U Page 4 of 5

Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Deerfield River Frontage Designator: OOL-05 Drawings 9699 FB 2 B Figure 7-1A References

1. YNPS Decommissioning Plan, Rev. 0.0.

"Radionuclides for Building Surfaces and SoilDCGLDeterminations,".

00-001-03 Page 5 of 5

Page I of 1 Table 1 Sum of Fractions OOL,05 -- Sediment Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 2977 42H G32131 0.009 2976 42G G32130 0.015 2975 42F G32129 0.107 2974 42E G32128 0.077 2973 42D G32127 0.042 2972 42C G32126 0.016 2971 42B G32125 0.043 2970 42A G32124 0.022 2969 42 G32123 0.010 Min 0.009 Max 0.107 Mean 0.038

Table 2 Page Iof 1 Statistical Data Summary - OOL-05 -- Sediment Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results AcTh-228 pCi/g 9 9 0.751 0.219 0.480 1.120 0.710 Ag-I I Om pCilg 0 9 0.000 Ba- 140 pCilg 0 9 0.000 Be-7 pCi/g 0 9 0.000 Cc-141 pCilg 0 9 0.000 Ce-144 pCi/g 0 9 0.000 Co-57 pCilg 0 9 0.000 Co-58 pCi/g 0 9 0.000 Co-60 pCilg 4 9 0.185 0.091 0.109 0.317 0.157 Cr-SI pCi/g 0 9 0.000 Cs-134 pCi/g 0 9 0.000 Cs-137 pCi/g 9 9 0.255 0.156 0.114 0.521, ,0.192 Fe-59 pCilg 1 9 0.135 0.135 0.135, 0.135 1-131 pCitg 0 9 0.000 1-133 pCi/g 0 9 0.000 K-40 pCi/g 9 9 14.600 1.770 11.800 17.900 14.400 Mn-54 pCi/g 0 9 0.000 Mo-99 pCi/g 0 9 0.000 Np-239 pCilg 0 9 0.000 Ru-103 pCilg 0 9 0.000 Ru-106 pCi/g 0 9 0.000 Sb-124 pCi/g 0 9 0.000 Se-75 pCi/g 0 9 0.000 Tc1-132 pCi/g 0 9 0.000 Zn-65 pCi/g 0 9 0.000 Zr-95 pCi/g 0 9 0.000

I Page l or I Table 3 Summary of Detected Results Above Criteria OOl.05 -- Sediment Yankee Nuclear Power Station Rowe, MA DCGL_Sediment

1. Sample Criterion # Detects Above Maximum Parameter #Detects Results Concentration Units Criterion Detecte d AcTh-228 9 9 pCi/g 0 1.12 Ag-lOrm 0 9 pCi/g 0 Ba- 140 0 9 pCi/g 0 Be-7 0 9 pCilg 0 Ce-141 0 9 pCi/g 0 Ce- 144 0 9 pCilg 0 Co-57 0 9 pCi/g 0 Co-58 0 9 pCilg 0 Co-60 4 9 4.84 pCi/g 0 0.32 Cr-51 0 9 pCilg 0 Cs-134 0 9 6.71 pCi/g 0 Cs-137 9 9 12.24 pCilg 0 0.52 Fe-59 1 9 pCi/g 0 0.14 1-131 0 9 pCi/g 0 1-133 0 9 pCilg 0 K-40 9 9 pCilg 0 17.90 Mn-54 0 9 21.66 pCi/g 0 Mo-99 0 9 pCi/g 0 Np-239 0 9 pCi/g 0 Ru- 103 0 9 pCi/g 0 Ru-106 0 9 68.21 pCilg 0 Sb-124 0 9 pCilg 0 Se-75 0 9 pCilg 0 TeI-132 0 9 pCilg 0 Zn-65 0 9 pCilg 0 Zr-95 0 9 pCi/g 0

Table 4 Page I of 2 Rad OOL Sediment (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 42 (2969) 42A (2970) 42B (2971) 42C (2972) 42D (2973) 42E (2974) 42F (2975)

Sample ID G32123 G32124 G32125  ! G32126 G32127 G32128 G32129 Date Sampled 10/25/1996 10/25/1996 10/25/1996 10/25/1996 10/25/1996 10/25/1996 10/25/1996 AcTh-228 0.85 0.88 0.5 0.71 0.66 0.97 1.12 Ag-1 10m -0.004 U -0.007 U 0.049 U -0.02 U 0.015 U 0.003 U 0.041 U Ba-140 -0.036 U -0.038 U -0.046 U -0.047 U 0.051 U 0.049 U -0.034 U Be-7 -0.15 U 0.37 U 0.18U -0.19 U 0.33 U 0.24 U 0.28 U Ce-141 -0.073 U 0U 0.034 U -0.042 U 0.066 U -0.046 U -0.075 U Ce-144 0.04 U -0.04 U 0.02 U 0.06 U -0.02 U 0.13 U -0.26 U Co-57 -0.005 U -0.022 U -0.019 U -0.022 U 0.022 U -0.001 U 0.004 U Co-58 -0.031 U 0.013 U 0.027 U -0.03 U 0U 0.01 U 0.001 U Co-60 -0.077 U 0.1 U I 0.109 0.061 U 0.147 0.167 0.317 Cr-51 0.08 U 0.02 U -0.09 U 0.25 U -0.26 U -0.46 U 0.35 U Cs-134 0.043 U -0.024 U 0.025 U 0.001 U 0U 0.004 U -0.035 U Cs-137 0.117 0.269 0.253 . 0.192 - 0.145 0.521 0.506 Fe-59 -0.08 U 0.04 U 0U -0.104 U 0.048 U -0.094 U 0.072 U 1-131 -0.13 U -0.16 U 0.1 U 0.019 U 0.2 U -0.11 U 0.05 U 1-133 0U 0U 0U OU OU OU OU K-40 13.9 15.1  ; 14.4 16.2 13.1 15.1 17.9 Mn-54 -0.034 U 0.005 U 0.032 U 0.009 U 0.009 U 0.01 U -0.02 U Mo-99 0U 0U OU OU OU OU OU Np-239 OU OU OU OU OU' OU OU Ru-103 0.036 U 0.009 U 0.012 U -0.016 U 0.002 U 0.042 U 0.022 U Ru-106 -0.2 U 0.05 U -0.05 U 0.11 U -0.2 U 0.05 U -0.25 U Sb-124 -0.039 U -0.041 U -0.031 U 0U -0.028 U -0.029 U 0.032 U Se-75 -0.016 U 0.007 U -0.014 U -0.014 U 0U -0.009 U 0.058 U Tel-132 -1 U 2.2 U -0.6 U -0.3 U 3.1 U 2.6 U 0.4 U Zn-65 -0.049 U -0.005 U 0.046 U -0.058 U 0.034 U 0.05 U 0.08 U Zr-95 0.025 U 0.033 U -0.016 U 0.012 U 0.092 U 0.05 U 0.012 U SOF 0.01 0.022 0.043 0.016 0.042 0.077 0.107 U-not detected (value is not greater than 2 sigma), UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 2 Rad OOL Sediment (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 42G (2976) 42H (2977)

Sample ID G32130 G32131 Date Sampled 10/25/1996 10/25/1996 AcTh-228 0.59 0.48 Ag-110m 0.016 U 0.036 U Ba-140 -0.019 U -0.013 U Be-7 -0.14 U -0.21 U Ce-141 0.041 U -0.011 U Ce-144 0.03 U -0.11 U Co-57 0.009 U 0.005 U Co-58 0.006 U 0.002 U Co-60 0.064 U -0.018 U Cr-51 0.02 U -0.05 U Cs-134 -0.011 U 0U Cs-137 0.178 0.114 Fe-59 -0.078 U 0.135 1-131 -0.147 U -0.038 U 1-133 0U 0U K-40 11.8 13.9 Mn-54 -0.019 U -0.03 U Mo-99 0U 0U Np-239 OU 0U Ru-103 -0.005 U 0.024 U Ru-106 0.29 U 0.18 U Sb-124 -0.034 U 0U Se-75 -0.001 U 0.017 U Tel-132 0.1 U 1.6 U Zn-65 -0.148 U -0.002 U Zr-95 0.022 U 0.009 U SOF 0.015 0.009 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Page I of 1 Table I Sum of Fractions OOL-05 -- Sod Yankee Nuclear Power Station Rowe, MA Radionuclides for which SOF is calculated were not present in samples.

Table 2 Page I of 1 Statistical Data Summary - OOL-05 -- Sod Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Co-58 pCi/g 0 1 0.000 Co-60 pCi/g 0 1 0.000 Cs-134 pCi/g 0 1 0.000 Cs-137 pCi/g 0 1 0.000 Mn-54 pCi/g 0 1 0.000

( C I

Page I or I Table 3 Summary of Detected Results Above Criteria OOL-05 -- Sod Yankee Nuclear Power Station Rowe, MA DCGLSod

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results . Concentration Units Criterion Detected Co-58 0 pCilg 0 Co-60 0 I I 4.84 pCi/g 0 Cs-I 34 0 6.71 pCi/g 0 Cs-137 0 12.24 .pCilg 0 Mn-54 0 I 21.66 pcilg 0 f

Table 4 Page I of I

.Rad OOL-05 -- Sod (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-54 (343)

Sample ID OFTS-54A Date Sampled 5/17/1993 Co-58 0.101 UM Co-60 0.113 UM Cs-134 0.078 UM Cs-137 0.133 UM Mn-54 0.1 UM U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sod Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Page I of I Table I Sum of Fractions OOL-05 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 345 OF-56 . OFTS-56 0.034 128 0G015-032 OGO15GUFDO32 0.001 Min 0.001 Max 0.034 Mean 0.018

. ,. I

Table 2 Page I of I Statistical Data Summary - OOL,05 -- Soil Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 11 11 0.584 0.133 0.411 0.822 0.572 Ag-108m pCi/g 0 11 0.000 Ag-lOrm pCi/g 1 11 0.051 0.051 0.051 0.051 Am-241 pCi/g 0 11 0.000 Bi-212 pCi/g 7 10 0.661 0.130 0.471 0.844 0.698 Bi-214 pCi/g 11 11 0.430 0.071 0.370 0.608 0.406 Ce- 144 pCi/g 0 11 0.000 Co-58 pCi/g 0 13 0.000 Co-60 pCi/g 0 13 0.000 Cs-134 pCi/g 0 13 0.000 Cs-137 pCi/g 1 13 0.411 0.411 0.411 0.411 Eu- 152 pCi/g 0 1 0.000 Fe-59 pCi/g I 11 0.073 0.073 0.073 0.073 K-40 pCi/g 11 11 13.946 3.595 10.810 22.200 13.350 Mn-54 pCi/g 1 13 0.030 0.030 0.030 0.030 Nb-95 pCi/g 0 11 0.000 Pb-212 pCi/g 11 11 0.565 0.171 0.277 0.879 0.562 Pb-214 pCi/g 11 11 0.451 0.085 0.352 0.629 0.458 Ra-226 pCi/g 5 7 1.833 0.759 1.203 3.146 1.550 Ru-103 pCi/g 0 11 0.000 Ru-106 pCi/g 0 11 0.000 Sb-124 pCi/g 0 11 0.000 Sb-125 pCi/g 0 1 0.000 TI-208 pCi/g 11 11 0.559 0.136 0.356 0.757 0.501 Zn-65 pCi/g 0 11 0.000 Zr-95 pCi/g 0 11 0.000 C_C_

Pagel of I Table 3 Summary of Detected Results Above Criteria

'OOr5 -- Soil Yankee Nuclear Power Station Rowe, MA DCGL_Soil

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion - Detected Ac-228 II 11 pCi/g 0 0.82 Ag-108m 0 11 8.52 pCi/g .0 Ag- lOnm 1 11 pCi/g 0.05 0

Arn-241 0 11 44.35 pCi/g Bi-212 7

• 10 pCi/g 0.84 0

Bi-214 11 11 pCi/g 0.61

.0 Ce-144 0 11 pCi/g 10 Co-58 0 *13 pCi/g :0 Co-60 0 13

• 4.84 pCi/g 0

Cs-134 0 13

• 6.71 pCi/g 0

Cs-137 1 13 12.24 pCi/g 0.41

'0 Eu-152 0 1 . 12.06 pCi/g 0

Fe-59 1 11 pCi/g 0.07 0

K-40 11 11 pCi/g 22.20 10 Mn-54 I 13 21.66 pCi/g 0.03 0

Nb-95 0 11 pCi/g 0

Pb-212 11 11 pCi/g 0.88 0

Pb-214 11 11 pCi/g 0.63 0

Ra-226 5 7 pCi/g 3.15

• 0 Ru-103 0 11 pCi/g Ru-106 0 68.21

.7 pCi/g 0 Sb-124 0 *11 pCi/g 0 Sb-125 0 . I 37.73 pCi/g :0 TI-208 11 1 pCi/g .0 0.76 Zn-65 0 I1I 11 pCi/g Zr-95 0 I1I pCilg

Table 4 Page I of 3 Rad OOL-05 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-54 (343) OF-56 (345) OGO15-021 (119) 0G015-022 (120) OGO15-024 (122)

Sample ID OFFS-54B OFTS-56 OG015GUFD021 OGO15GUFDO22 OG015GUFDO24 Date Sampled 5/17/1993 5/17/1993 8/31/1998 8/3/1998 8/31/1998 Ac-228 0.6338 0.8216 0.7294 Ag-108m 0.0052 U 0.01567 U 0.01035 U Ag-I lO n -0.03087 U -0.01321 U -0.02785 U Am-241 0U 0U 0U Bi-212 0.8438 0.7313 Bi-214 0.4249 0.5097 0.4022 Ce-144 -0.0554 U 0.083 U -0.001734 U Co-58 0.065 UM 0.069 UM -0.009989 U -0.02103 U 0.008342 U Co-60 0.119 UM 0.107 UM 0U -0.02037 U 0.00277 U Cs-134 0.071 UM 0.087 UM -0.1671 U -0.005146 U -0.03781 U Cs-137 0.0997 UM 0.411 -0.004477 U 0.0254 U 0.01121 U Eu-152 Fe-59 0.03494 U -0.08512 U -0.0528 U K-40 13.35 19.31 13.4 Mn-54 0.067 UM 0.087 UM -0.004293 U -0.008024 U 0.002666 U Nb-95 -0.005282 U 0.05138 U -0.005906 U Pb-212 0.6812 0.8789 0.6797 Pb-214 0.4739 0.5311 0.4997 Ra-226 1.203 3.146 1.747 Ru-103 -0.0196 U 0.01458 U -0.0171 U Ru-106 0.07983 U 0.02096 U -0.07536 U Sb-124 0U 0U 0.0205 U 'U)

Sb-125 TI-208 0.6642 0.7568 0.7101 Zn-65 -0.02734 U 0.05955 U 0.01697 U Zr-95 0.05085 U 0.04763 U -0.01068 U SOF 0.034 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 3 Rad OOL-05 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G015-025 (123) 0G015-026 (124) 0G015-032 (128) 0G015-028 (125)

Sample ID :, OGO15GUFDO25 OG015GUFDO26 OG015GUFDO27 OGO15GUFDO28 Date Sampled 8/31/1998 8/31/1998 8/31/1998 . 8/31/1998 Ac-228 0.4581 0.5259 0.572 0.411 Ag-108m 0.006715 U 0.003033 U -0.0045 U 0.009131 U Ag- 10m 0.01654 U 0.01239 U '. i 0.0505 0.01372 U Am-241 OU OU OU OU Bi-212 0.4713 42.14 U 0.728 0.641 Bi-214 0.3986 0.3823 0.608 0.3698 Ce-144 -0.006704 U 0.134 U -0.0183 U -0.1735 U Co-58 -0.01718 U 0.0001375 U -0.00308 U ,; -0.02561 U Co-60 0.003162 U -0.003215 U 0.00914 U -0.03547 U Cs-134 -0.007067 U 0.01098 U -0.169 U -0.04487 U Cs-137 0.003729 U -0.01983 U -0.00249 U -0.02194 U Eu-152 0.004979 U Fe-59 0.07267 0.0417 U 0.0203 U 0.02752 U K-40 10.81 12.66 22.2 11.42 Mn-54 -0.0002842 U 0.003526 U -0.00318 U -0.003767 U Nb-95 -0.005237 U -0.01383 U -0.0154 U -0.006171 U Pb-212 0.3614 0.5331 0.562 0.2765 Pb-214 0.3534 0.4576 0.629 0.3865 Ra-226 1.52 Ru-103 0.01649 U 0.009126 U 0.0104 U 0.000501 U Ru-106 0.1979 U 0.0571 U 0.15 U 0.1335 U Sb-124 0.03153 U -0.003805 U 0.0142 U 0.03629 U Sb-125 0.01979 U Tl-208 0.4761 0.4858 0.555 0.3557 Zn-65 -0.03449 U -0.03999 U 0.0624 U 0.005663 U Zr-95 0.03138 U -0.02881 U -0.00484 U 0.01193 U SOF  :

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 3 of 3 Rad OOL-05 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OGO15-029 (126) 0G015-030'(127) -G015-024 (122) 0G015-032 (128)

Sample ID OGO15GUFDO29 OG015GUFDO30 OG615GUFDO31 OGO15GUFDO32 Date Sampled 8/31/1998 8/31/1998 8/31/1998 8/31/1998 Ac-228 0.5431 0.6041 0.709 0.4106 Ag-108m 0.006256 U 0.003091 U 0.00259 U -0.007811 U Ag-110m -0.02571 U 0.03035 U -0.0335 U 0.006602 U Am-241 0U 0U 0U 0U Bi-212 0.3194 U 0.5153 0.698 0.3598 U Bi-214 0.4422 0.4059 0.406 0.3763 Ce-144 0.06303 U -0.1163 U -0.0796 U -0.04688 U Co-58 -0.01636 U 0.01001 U 0.0109 U -0.009479 U Co-60 0.0124 U -0.03308 U 0.00319 U 0U Cs-134 -0.05493 U -0.01877 U -0.0115 U -0.08731 U Cs-137 -0.01542 U 0.01347 U 0.0139 U -0.0105 U Eu-152 Fe-59 0.03431 U . 0.01399 U -0.065 U 0.04637 U K-40 11.57 13.98 13.6 11.11 Mn-54 -0.005632 U -0.02383 U 0.00394 U 0.02969 Nb-95 0.0269 U 0.0251 U 0.0352 U 0.04223 U Pb-212 0.4962 0.5777 0.721 0.4473 Pb-214 0.4169 0.3516 0.482 0.3754 Ra-226 0.9751 U 1.55 1.084 U Ru-103 0.01849 U 0.0107 U 0.00219 U 0.006272 U Ru-106 -0.3421 U 0.09684 U 0.0798 U 0.1106 U Sb-124 -0.01571 U -0.008964 U 0.0112 U -0.03963 U Sb-125 Tl-208 0.5008 0.4848 0.738 0.4238 Zn-65 -0.1779 U -0.05106 U -0.104 U -0.09589 U Zr-95 -0.00986 U 0.00291 U 0.0209 U 0.02619 U SOF _ 0.001 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Historical Site Assessment and Classification Summary Survey Area Name: Yankee West Access Designator: 00L06 Survey Area Description Survey area OOL-06 consists of land area that lies to the west of the site. Survey area OOL-06 contains about 37281 square meters of soil and asphalt surface area.

Survey area OOL-06 is bounded by OOL-05 on the north, OOL-02 and OOL-08 on the east, by OOL-08 on the south and non-impacted YAEC owned property on the west.

Sub-surface systems that traverse or connect within OOL-06 include:.

• Sanitary sewers system (tank, pump house and leaching fields, both the active and abandoned systems)..

• Storm drain system

• Mass Electric power line feed to the YNPS site Items of note located within or adjacent to OOL-06 include:

• The terminus of Yankee Road (a public way)

• Temporary office trailers.

• Temporary storage trailers.

• The Sherman Dam Access Road.

• The YNPS main parking lot

• Temporary storage locations for surplus material

• Location of soil deposition from within the YNPS site (OOL-07)

• The YNPS site administration building

• The YNPS site administration building access road

• The YNPS site administration building sanitary sewer system, (tanks and leach fields both active and abandoned).

• Security, vehicles access gate and barrier.

.~ ..

Page l of 5

U Historical Site Assessment and Classification Summary Survey Area Name: Yankee West Access Designator: OOL-06 Survey Area History Survey area OOL,06 is not part of the RCA. There are no radioactive systems present in OOL-06. Survey area OOL-06 was not used for storing radioactive material or processing or packaging radioactive waste.

Surveys Area OOL-06 contained the main access point for vehicle and personnel access to and egress from the YNPS site. Radioactive material shipments traversed survey area OOL,06 while accessing and leaving the YNPS site.

Survey area OOL-06 was used as a material storage area by YNPS. Survey area OOL,06 is likely to be minimally impacted by low levels of radioactivity as a result of surface water run-off and material storage.

Site modifications performed within survey area OOL,06 include:

• Construction of the MASS Electric power feed line to the YNPS site

• Construction of the turbine spindle storage pedestal.

• Construction of the waste compactor.

• Construction of the sand and salt shed.

• Construction of the enhanced security vehicle gate and barrier

• Modification of the YNPS administration building sanitary sewer leaching field. -9 Modifications performed at the YNPS site in support of decommissioning that changed the configuration of OOL-06 include:

• Construction of the Mass Electric power line feed.

Scoping/Characterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan (Ref 1).

Decommissioning No decommissioning activities have been performed for survey area OOL-06.

Page 2 of 5

Historical Site Assessment and Classification Summary Survey Area Name: Yankee West Access ' Designator: 00-406 Findings Survey area OOL-06 is a land area that is located in the non-RCA'portidn of the site.'

Survey area OOL-06 is minimally impacted by surface water run-off, storm drain system and low levels of radioactivity present in the sanitary sewer system solids. Survey area' OOL-06 is likely to contain're'sidial radioactivity concentrations at a small fraction of DCGL.

The radionuclide mix likely to be present in OOL-06 includes all radionuclides identified in the radioactive 'systems of the plant (Ref 2). The primary'radionuclides of concern for survey area OOL-06 are Co-60, Cs-137, Ag-108m, Sr-90 and tritium.

Current Status OOL-06 continues to be potentially impacted by radioactive material migration due to surface water run-off, storm drain effluents, by operation of the sanitary sewer system, material storage and by continued decommissioning activities.

A soil sample location map (Figure 7) has been prepared to show the distribution of sampling locations in OOL06. Only samples representative of soils still present are included on the map (samples of soils representative of soils removed during remediation activities are not presented). Four survey media were assessed in OOL-06, Humus, Sediment, Sod and Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL.

There are separate sets of Tables 1-4 for each survey media. All are evaluated as fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL-06 is presented at the end of Table 1 for each survey medium. The results are summarized below.

Humus: Mean SOF is 0.052.

Maximum SOF for a single humus sample is 0.052. (key# 368)

Minimum SOF for a single humus sample is 0.052. (key# 368 Sediment: Mean SOF is 0.022.

Maximum SOF for a single sediment sample is 0.047. (key# 350)

Minimum SOF for a single sediment sample is 0.007. (key# 349)

Page 3 of 5

A-Historical Site Assessment and Classification Summary Survey Area Name: Yankee West Access Designator: 00-406 Sod: Mean SOF is 0.114.

Maximum SOF for a single sod sample is 0.114. (key# 366)

Minimum SOF for a single sod sample is 0.114. (key# 366)

Soil: Mean SOF is 0.029.

Maximum SOF for a single soil sample is 0.080. (key# 368)

Minimum SOF for a single soil sample is 0.004. (key# 3267, 3402)

ClassificationStatement Based upon the historical use and radiological conditions associated with this survey area OOL,06 is identified as a Class 3 Area.

Page 4 of 5

Historical Site Assessment and Classification Summary Survey Area Name: Yankee West Access Designator: 00O-06 Drawings 9699-FE-34A Figure 7-1A References

1. YNPS Decommissioning Plarn Rev. 0.0.

2. "Radionuclides for Building Surfaces and Soil DCGL Determinations," YA-REPT-00-001-03 Page S of 5

Page I of I Table 1 Sum of Fractions OOL006 -- Humus Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum or Fractions 368 OF-199 OF1Z-199 0.052 Imin 0.052 Max 0.052 Mean 0.052

( ( c Table 2 Page I of I Statistical Data Summary - OO016 -- Humus Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ag-I 08m pCi/g 0 1 0.000 Co-58 pCi/g 0 1 0.000 Co-60 pCilg 0 1 0.000 Cs-1 34 pCi/g 0 1 0.000 Cs-137 pCi/g I 1 0.633 0.633 0.633 0.633 Mn-54 pCi/g 0 1 0.000

Page I of 1 Table 3 Summary of Detected Results Above Criteria 00I,06 -- Humus Yankee Nuclear Power Station Rowe, MIA DCGLlHumus

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ag-108m 0 1 8.52 pCi/g 0 Co-58 0 1 pCi/g 0 Co-60 0 1 4.84 pCi/g 0 Cs-134 0 1 6.71 pCi/g 0 Cs-137 I 1 12.24 pCi/g 0 0.63 Mn-54 0 1 21.66 pCi/g 0

Table 4 Page I of I Rad OOL-06 -Humus (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-199 (368)

Sample ID OFTZ-199 Date Sampled 10/17/1994 Ag-108m 0.103 UM Co-58 0.099 UM Co-60 0.165 UM Cs-134 0.071 UM Cs-137 0.633 Mn-54 0.101 UM SOF 0.052 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Humus Basic Data 12/15/2003 Blank results indicate chemical not analyzed

3-Pagelof I Table I Sum of Fractions 001,06 -- Sediment Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 351 OF-180 OFTS- 180 0.011 350 OF-179 OFTS-179 0.047 349 OF-178 OFTS-178 0.007 Min 0.007 Max 0.047 Mean 0.022

( c Table 2 Page I of I Statistical Data Summary - 00OL06 -- Sediment Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ag-108m pCi/g 0 3 0.000 Co-58 pCi/g 0 3 0.000 Co-60 pCi/g I 3 0.140 0.140 0.140 0.140 Cs-134 pCilg 0 3 0.000 Cs-137 pCilg 3 3 0.145 0.070 0.080 0.219 0.135 Mn-54 pCi/g 0 3 0.000

Pagelof I Table 3 Summary of Detected Results Above Criteria OOL-06 -- Sediment Yankee Nuclear Power Station Rowe, MIA DCGL4_Sediment

1. Sample Criterion # Detects Above Maximum Parameter #Detects Results Concentration Units Criterion Detecte d Ag-108m 0 3 8.52 pCilg 0 Co-58 0 3 pCi/g 0 Co-60 1 3 4.84 pCi/g 0 0.14 Cs-134 0 3 6.71 pCilg 0 Cs-137 3 3 12.24 pCi/g 0 0.22 Mn-54 0 3 21.66 pCilg 0 J

Table 4 Page I of I Rad OOL-06-Sediment (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-178 (349) OF-179 (350) OF-180 (351)

Sample ID OFTS-178 OFTS-179 OFTS-180 Date Sampled 10/4/1994 10/4/1994 10/4/1994 Ag-108m 0.037 UM 0.048 UM 0.033 UM Co-58 0.043 UM 0.066 UM 0.044 UM Co-60 0.0706 UM 0.14 0.0628 UM Cs-134 0.037 UM 0.058 UM 0.04 UM Cs-137 0.0804 0.219 0.135 Mn-54 0.049 UM 0.06 UM 0.046 UM SOF 0.007 0.047 0.011 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Pagel of I Table I Sum of Fractions 001,06 -- Sod Yankee Nuclear Power Station Rowe, NIA -I' Station Key Station' Sample ID *Sum Of Fractions 366 OF-198 OFTZ-198 0.114 IMin 0.114 IMax 0.114 Mean 0.114

c C Table 2 Page l of I Statistical Data Summary - OOL-06 -- Sod Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ag-i 08m pCi/g 0 1 0.000 Co-58 pCi/g 0 1 0.000 Co-60 pCi/g 0 1 0.000 Cs-I 34 pCilg 0 1 0.000 Cs-137 pCilg I 1 1.398 1.398 1.398 1.398 Mn-54 pCi/g 0 1 0.000

Pagelof I Table 3 Summary of Detected Results Above Criteria 001,06--Sod Yankee Nuclear Power Station Rowe, MNA DCGLSod

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ag-i 08m 0 8.52 pCilg 0 I

Co-58 0 pCi/g 0 1

Co-60 0 4.84 pCilg 0 Cs-134 0 6.71 pCilg 0 Cs-137 1 12.24 pCilg 0 1.40 Mn-54 0 21.66 pcilg 0

Table 4 Page 1 of I Rad OOL-06 -- Sod (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-198 (366)

Sample ID OFTZ-198 Date Sampled 10/14/1994 Ag-108m 0.088 UM Co-58 0.079 UM ,,;

Co-60 0.171 UM Cs-134 0.084 UM Cs-137 1.398 Mn-54 0.109 UM SOF 0.114 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sod Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Page I Of I I Table I Sum of Fractions OOL06--Soil Yankee Nuclear Power Station Rowe, MA J Station Key Station Sample ID Sum Of Fractions 3403 WSD0, 2 WSDO2 0.038 3402 WSDOII WSD01 0.004 3267 TS541 TS541 0.004 368 OF-199 OFTS-199 0.080 366 OF-198 OFTS-198 0.019 365 OF-197 OFTS-197 0.059 362 OF-193 OFTS- 193 0.038 356 OF-188 OFTS- 188 0.005 312 0G014-035 OGO14GUFDO35 0.013 307 0G014-024 OGO14GUFDO24 0.006 238 OG004-001 OGO04GUFD0OI 0.017 88 OG001-004 OGOOIGUFU004 0.039 87 OG001-003 OG001 GUFDO03 0.053 Min 0.004 Max 0.080 Mean 0.029

( ( (

Table 2 Page I or 1 Statistical Data Summary - OOb.6 -- Soil Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 23 23 0.709 0.249 0.271 1.434 0.692 Ag-108m pCilg 0 29 0.000 Ag-I lOim pCi/g 23 0.041 0.041 0.041 0.041 Am-241 pCi/g 0 23 0.000 Bi-212 pCilg 13 16 0.859 0.159 0.604 1.199 0.878 Bi-214 22 - 22 0.421 0.091 0.270 0.667 0.413 Ce-144 0 23

• 0.000 Co-58 PCilg 0 29 0.000 Co-60 29 0.113 0.113 0.113 0.113 Cs-134 1 29 0.039 0.039 0.039 0.039 Cs-137 pCilg 1 29 0.351 0.305 0.043 0.982 0.219 Eu-152 pCi/g 0 I 0.000 Fe-59 pCi/g 0 23 0.000 K-40 pCi/g 23 23 16.471 3.870 10.240 29.500 15.820 Mn-54 pCilg 0 29 0.000 Nb-95 0 .23 0.000 Np-239 pCilg 0 I 0.000 Pb-212 23 23 0.684 0.191 0.297 1.257 0.684 Pb-214 23 23 0.459 0.136 0.301 0.954 0.423 Ra-226 pCilg 13 16 1.767 0.521 1.113 2.930 1.612 Ru-103 pCi/g 0 23 0.000 Ru- 106 0 23 0.000 Sb-124 0 23 0.000 Sb-125 PCi/g 0 1 0.000 TI-208 pCi/g 19 19 0.634 0.150 0.272 0.853 0.662 Zn-65 pCilg I 23 0.157 0.157 0.157 0.157 Zr-95 v~Ci/g 3 23 0.090 0.046 0.041 0.134 0.095

A-PageIorIO Table 3 Summary of Detected Results Above Criteria 001rO6 -- Soil Yankee Nuclear Power Station Rowe, MIA DCGLSoil U

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ac-228 23 23 pCi/g 1.43 Ag-I 08m 0 29 8.52 pCi/g Ag-l I Om 23 pCi/g 0.04 Am-241 0 23 44.35 pCifg Bi-212 13 16 pCi/g 1.20 Bi-214 22 22 pCi/g 0.67 Ce- 144 0 23 pCi/g Co-58 0 29 pCi/g Co-60 I 29 4.84 pCi/g 0.11 Cs-i 34 1 29 6.71 pCi/g 0.04 Cs-137 12 29 12.24 pCi/g 0.98 Eu- 152 0 1 12.06 pCi/g Fe-59 0 23 pCi/g K-40 23 23 pCi/g

• 29.50 Mn-54 0 29 21.66 pCi/g Nb-95 0 23 pCi/g Np-239 0 1 pCi/g Pb-212 23 23 pCi/g 1.26 Pb-214 23 23 ;pCi/g 0.95 Ra-226 13 16 pCi/g 2.93 Ru- 103 0 23 pCi/g Ru-106 0 23 68.21 pCi/g Sb-124 0 23 pCi/g Sb-125 0 I 37.73 pCi/g TI-208 19 19 pCi/g - 0.85 Zn-65 I 23 pCi/g 0.16 Zr-95 3 23 pCi/g 0.13

Table 4 Page I of 7 Rad OOL-06 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA' Station (Key) OF-187 (355) OF-188 (356) OF-193 (362) OF-197 (365) OF-198 (366) OF-199 (368)

Sample ID OFTS-187 OFTS-188 OFTS-193 OFTS-197 oFTS-198 OFTS-199 Date Sampled 10/13/1994 10/13/1994 10/13/1994 10/17/1994 10/17/1994 10/17/1994 Ac-228 Ag-108m 0.058 UM 0.047 UM 0.075 UM 0.062 UM 0.054 UM 0.067 UM Ag-110m Am-241 Bi-212 Bi-214 Ce-144 Co-58 0.064 UM 0.056 UM 0.08 UM 0.073 UM 0.057 UM 0.064 UM Co-60 0.0813 UM 0.0816 UM 0.127UM 0.086UM 0.0851 UM 0.0919 UM Cs-134 0.065 UM 0.06 UM 0.09 UM 0.061 UM 0.049 UM 0.055 UM Cs-137 0.0798 UM 0.066 0.463 0.717 0.234 0.982 Eu-152 Fe-59 K-40 Mn-54 0.079 UM 0.068 UM 0.092 UM 0.062 UM 0.054 UM 0.062 UM Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103:-

Ru-106' Sb-124 Sb-125 TI-208 Zn-65 Zr-95 SOF _______0.005 0.038 0.059 0.019 0.08 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 7 Rad OOL-06 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G001-003 (87) OGOO1-004 (88) OG004-001 (238) 0G004-002 (239). J Sample ID OGOO1GUFDO03 OGOOIGUFU004 OG0O04GUFDOO OGO04GUFDO02 Date Sampled 6/29/1998 6/29/1998 7/14/1998' 7/14/1998 Ac-228 0.383 0.638 0.8064 1.004 Ag-108m -0.03252 U -0.02482 U -0.01547 U 0.01163 U Ag-i 10m. 0.03259 U 0.02887 U -0.03224 U -0.04795 U Am-241 0U 0U 0U 0U Bi-212 0.7073 0.8777 0.671 Bi-214 0.4506 0.5214 0.4693 Ce-144 -0.2657 U -0.05376 U -0.04756 U -0.04134 U Co-58 -0.0 1826 U -0.03223 U 0.002405 U -0.001909 U Co-60 0.001134 U 0.01214 U 0.0005766 U 0.02465 U Cs-134 -0.02112 U 0.0137 U 0.02142 U -0.07499 U Cs-137 0.647 0.4722 0.2045 0.02042 U Eu-152 Fe-59 0.03753 U -0.01034 U -0.1209 U -0.02148 U K-40 17.04 17.88 18.48 19.47 Mn-54 0.000773 U -0.05647 U 0.02856 U -0.01276 U Nb-95 0.0265 U 0.004585 U 0.01406 U 0.01542 U Np-239 Pb-212 0.6071 0.5382 0.849 0.7714 Pb-214 0.3974 0.4923 0.5813 0.5354 Ra-226 1.442 1.522 2.93 Ru-103 0.01195 U -0.01241 U 0.0202 U 0.001982 U I Ru-106 -0.2516 U -0.3157 U 0.09199 U -0.1141 U Sb-124 -0.01999 U 0U -0.04173 U 0U Sb-125 TI-208 0.5066 0.5127 0.7541 0.594 Zn-65 -0.01277 U 0.02126 U 0.02856 U -0.01961 U Zr-95 0.03282 U -0.007179 U 0.09452 0.04827 U SOF 0.053 0.039 0.017 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 3 of 7 Rad OOL-06 Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G014-017 (301) 0G014-018 (302) 0G014-018 (302) 0G014-020 (303)

Sample ID OG014GUFDO17 OGO14GUFDO18 0G014GUFD019 OGO14GUFD020 Date Sampled 9/2/1998 9/2/1998 9/2/1998 9/2/1998 Ac-228 1.434 0.8332 0.612 0.4906 Ag-108m 0.01118U 0.005659 U ' 0.00129 U 0.01356 U Ag-110rn 0.06374 U 0.04149 0.00613 U -0.02162 U Am-241 0U OU OU OU Bi-212 0.9618 0.6872 Bi-214 0.6671 0.4481 0.595 0.3436 Ce-144 -0.4734 U -0.002531 U 0.12 U -0.03203 U Co-58 0.01847 U -0.05064 U 0.00487 U 0.0111 U Co-60 -0.02444 U -0.0196 U -0.0146 U 0.004812 U Cs-134 -0.2019 U -0.01741 U -0.0102 U -0.0007283 U; Cs-137 0.01676 U 0.01969 U 0.025 U 0.02769 U Eu-152 Fe-59 -0.08976 U -0.02679 U 0.0231 U -0.0522 U K-40 29.5 15.82 22.1 13.17 Mn-54 0.01158 U 0.02209 U -0.0258 U - 0.005206 U Nb-95 0.02229 U 0.02203 U 0.0389 U 0.03557 U Np-239 Pb-212 1.257 0.6999  : 0.676 0.5411 Pb-214 0.9543 - 0.3594 0.652 0.3607 Ra-226 0.8412 U 1.82 Ru-103 -0.02151 U . -0.004543 U 0.0287 U . -0.0128 U Ru-106 -0.09445 U -0.113U 0.0431 U  ; -0.01834 U Sb-124 0.01415 U -0.00308 U 0.0285 U 0U Sb-125 TI-208 0.696 0.639 Zn-65 -0.2326 U -0.1626 U 0.00746 U -0.02252 U Zr-95 0.1341 0.06258 U 0.0194 U 0.02547 U SOF U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

11 Table 4 Page 4 of 7 Rad OOL-06 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G014-021 (304) 0G014-022 (305) 0G014-023 (306) 0G014-024 (307)

J Sample ID OGO14GUFD021 OG014GUFDO22 OG014GUFDO23 0G014GUFD024 Date Sampled 9/2/1998 9/2/1998 9/2/1998 9/2/1998 Ac-228 0.8278 0.8745 - 0.4475 0.7874 Ag-108m -0.01183 U -0.008882 U 0.01271 U -0.004453 U Ag-1 10m -0.009566 U -0.003832 U 0.0156 U 0.01538 U Am-241 0U 0U 0U 0U Bi-212 0.9225 0.8608 0.6037 0.9512 Bi-214 0.4437 0.4116 0.3541 0.3498 Ce-144 0.002524 U -0.2322 U -0.03938 U -0.07808 U Co-58 0.02578 U 0.01 133 U -0.001065 U -0.02481 U Co-60 0.003181 U 0.006271 U -0.02535 U 0.02624 U Cs-134 0.01448 U 0.008254 U -0.1054 U 0.03877 Cs-137 0.006546 U 0.03011 U 0.03042 U 0.00225 U Eu-152 0.3295 U Fe-59 -0.05353 U -0.01977 U 0.0008718 U -0.0348 U K-40 13.93 17.11 13.87 15.77 Mn-54 -0.003942 U -0.00777 U -0.007851 U -0.001913 U Nb-95 0.007237 U -0.00547 U 0.0144 U 0.001945 U Np-239 Pb-212 0.7339 0.7119 0.5848 0.7523 Pb-214 0.5192 0.4753 0.4146 0.4455 Ra-226 1.477 1.113 1.845 1.612 Ru-103 -0.03332 U 0.006707 U -0.008225 U -0.01077 U Ru-106 -0.263 U -0.08536 U -0.09354 U 0.155 U Sb-124 0.03641 U 0.00303 U 0.01918 U 0.007606 U Sb-125 TI-208 0.7401 0.4464 0.7971 Zn-65 0.1565 -0.1206 U 0.059 U 0.04476 U Zr-95 -0.01749 U -0.005053 U 0.006497 U 0.04854 U SOF 0.006 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 5 of 7 Rad OOL-06 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G014-025 (308) 0G014-026 (309) ;: 0G014-027 (310) OG014-028 (311) -

Sample ID , OGO14GUFDO25 OG014GUFDO26 OGO14GUFD027 OGO14GUFDO28 Date Sampled 9/2/1998 9/2/1998 9/2/1998 9/2/1998 Ac-228 0.8625 0.9249 - 0.6922 0.7834 Ag-108m -0.005484 U 0.0001977 U 0.01932 U -0.003221 U Ag-110m -0.01856 U -0.000158 U 0.01347 U 0.01457 U Am-241 0U OU OU OU Bi-212 0.9409 0.9296 0.3945 U 0.3361 U Bi-214 0.3614 .0.4123 , 0.3951 0.4564 Ce-144 -0.07639 U -0.1258U 0.10161U 0.09588 U Co-58 -0.01966 U -0.01578 U -0.02642 U -0.01787 U Co-60 0.003442 U 0.0201 U -0.0229 U 0.006773 U Cs-134 -0.005116 U -0.003812 U 0.007224 U -0.02818 U Cs-137 -0.009442 U 0.03447 U - 0.01306 U 0.006958 U Eu-152 Fe-59 -0.04338 U -0.02114 U 0.02002 U 0.01531 U K-40 17.78 - 17.18 15.42 18.01 Mn-54 0.005422 U' -0.00116 U -0.008329 U 0.01992 U N *95 -0.02937 U -0.05865 U 0.007546 U -0.0202 U Np-239 Pb-212 0.8812 0.8153 0.6391 0.5987 Pb-214 0.4234 0.4652 0.3483 0.4693 Ra-226 2.661 - 1.434 1.002 U Ru-103 -0.03442 U 0.01255 U -0.04426 U -0.008939 U Ru-106 0.1016U 0.05936 U 0.1312 U 0.1007 U Sb-124 0.01684 U 0.0412 U -0.0009816 U -0.02209 U Sb-125 l-208 0.6855 ' 0.7592 0.6007 0.7441 Zn-65; -0.08168 U -0.0 1823 U  :-0.002624 U 0.06053 U Zr -0.02117U -0.006384U 0.001861 U -0.0296U SOF _ _  ;

U-not detected (value is not greater than 2 sigmna); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 6 of 7 Rad OOL-06 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA "U)

Station (Key) 0G014-027 (310) 0G014-035 (312) TS539 (3265) TS540 (3266) TS541 (3267)

Sample ID OGO14GUFDO34 OGO14GUFDO35 TS539 TS540 TS541 Date Sampled 9/2/1998 9/2/1998 8/18/1998 8/18/1998 8/18/1998 Ac-228 0.731 0.592 0.678 0.635 0.6686 Ag-108m -0.00382 U -0.001652 U 0.01625 U 0.007187 U -0.005692 U Ag-110m -0.000859 U 0.02761 U 0.03083 U 0.003746 U 0.001294 U Am-241 0U 0U 0U 0U 0U Bi-212 0.859 1.199 Bi-214 0.367 0.4137 0.4321 0.3744 0.4349 Ce-144 0.0977 U -0.1332 U -0.01707 U -0.04888 U -0.02019 U Co-58 -0.0166 U -0.02636 U -0.01207 U -0.02259 U -0.01092 U Co-60 0.00972 U -0.01558 U -0.01982 U -0.02968 U 0.02547 U Cs-134 0.0111 U -0.007219 U 0.03378 U -0.03283 U -0.03314 U Cs-137 -0.00444 U 0.1558 -0.004828 U 0.0004237 U 0.04321 Eu-152 Fe-59 -0.0529 U -0.08482 U -0.007838 U -0.04945 U 0.01715 U K-40 15.9 11.79 15.54 14.95 15.44 Mn-54 0.0189 U -0.008252 U 0.01619 U 0.0229 U 0.02562 U Nb-95 -0.015 U 0.02614 U 0.003733 U 0.02852 U 0.003457 U Np-239 -0.235 U Pb-212 0.636 0.5262 0.8263 0.6838 0.7494 Pb-214 0.463 0.3856 0.4021 0.3766 0.3974 Ra-226 1.74 2.058 0.968 U 1.316 Ru-103 -0.0047 U -0.01673 U 0.00353 U -0.01152 U 0.00316 U

.K)

Ru-106 -0.0191 U 0.03708 U -0.23 U 0.08491 U 0.08441 U Sb-124 0.0266 U -0.02547 U 0.0207 U -0.004558 U 0.002278 U Sb-125 -0.09277 U TI-208 0.76 0.4095 0.8534 0.6088 0.662 Zn-65 0.044 U -0.03243 U 0.04022 U 0.02701 U 0.09275 U Zr-95 0.0233 U 0.04743 U -0.07186 U 0.01884 U -0.005691 U SOF 0.013 0.004 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 7 of 7 Rad OOL-06 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) WSD01 (3402) WSDO2 (3403)

Sample ID WSD01 WSDO2 Date Sampled 8/17/1999 8/19/1999 Ac-228 0.2707 0.3192 Ag-108m 0.001672 U 0.003685 U Ag-110m 0.01417 U -0.01106 U i I

Am-241 0U 0U Bi-212 0.3392 U i Bi-214 0.2881 0.2703 Ce-144 0.03013 U 0.05637 U Co-58 -0.001027 U 0.01546 U Co-60 0.009379 U 0.1132 Cs-134 -0.1186 U -0.07924 U Cs-137 0.0453 0.1769 Eu-152 Fe-59 0.02765 U 0.01849 U K-40 10.24 - 12.44 Mn-54 0.002195 U -0.008513 U Nb-95 0.009187 U -0.004001 U Np-239 Pb-212 0.2974 0.3632 Pb-214 0.3014 0.3262 Ra-226 Ru-103 0.003793 U 0.008267 U -

Ru-106 -0.0358 U 0.09647 U:

Sb-124 -0.02798 U 0.008262 U j Sb-125 TI-208 0.2716 Zn-65 -0.03774 U -0.01673 U Zr-95 0.02521 U 0.04148 SOF 0.004 -0.038 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Underground Systems OOL-06 Structure / System Component Description Location Impacted?

Storm Drains WCB-001 WCB-002 depth = 9'; 4'x8' at base, 2' dia at top; no ladder -15' W and -18' S of NW corner of access; 18: corr pipe 74" from top going W, 30" gatehouse corr pipe 79" from top going N, 30" cor pipe 83" from top going N, 18" corr pipe 74" from top going E, 6" PVC pipe 41" from top going SE; concrete bottom; deterioration of concrete at top, rear exposed, 30" outfall pipe with large amounts sediment Water 1" line from water tank to admin bldg Page 1 of 1 I

Historical Site Assessment and Classification Summary Survey Area Name: Spoils Deposit Area Designator: OOL-07 Survey Area Description Survey area OOI-07 consists of land area that lies within survey area"OOL,06. Survey area OOL-07 contains about 2108 square meters of soil surface area.

Survey area OOL-07 is bounded entirely by OOL-06 Sub-surface systems that traverse or connect within OOL-07 include:

• Administration building sanitary sewer system, active leaching field.

Items of note located within or adjacent to OOL07 include':

• Pan fire training prop for fire extinguisher training.

Pagel of 4

I a-Historical Site Assessment and Classification Summary Survey Area Name: Spoils Deposit Area Designator OOL-07 Survey Area History Survey area OOL-07 is not part of the RCA. There are no radioactive systems present in OOL-07.Survey area OOL-07 was not used for storing radioactive material or processing or packaging radioactive waste.

Surveys Area OOL-07 contains an accumulation of soil that was excavated during the construction of the ISFSI pad: Soils from other plant modification were also deposited in this area.

Survey area OOL,07 was used to store the turbine spindle removed from service in 1981.

Survey area OOL-07 was also used to store other material over time. Survey area OOL, 07 is likely to be minimally impacted by low levels of radioactivity as a result of soil and material storage.

Modifications performed at the YNPS site in support of decommissioning that changed the configuration of OOL,07 include:

• Deposition of the soil from the ISFSI construction.

Scoping/Characterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan (Ref 1).

Decommissioning No decommissioning activities have been performed for survey area OOL-07.

Page 2 of 4

Historical Site Assessment and Classification Summary Survey Area Name: Spoils Deposit Area Designator: OOL-07 Findings Survey area OOL,07 is a land area that is located in the non-RCA portion of the site.

Survey area OOL.07 is minimally impacted by concentration low levels of radioactivity present in soil deposited in this area. Survey area OOL-07 is likely to contain residual radioactivity concentrations at a small fraction of DCGL.

The radionuclide mix likely to be present in OOL-07 includes all radionuclides identified in the radioactive systems of the plant (Ref 2). The primary radionuclides of concern for survey area OOL-07 are Co-60, Cs-137, Ag-108m, Sr-90 and tritium.

CurrentStatus It is unlikely that survey area OOL-07 will be further impacted by continued decommissioning activities. No sampling was conducted in this area; however, the bulk of the material deposited was sampled prior to deposition.

ClassificationStatement Based upon the historical use and radiological conditions associated with this survey area OOL-07 is identified as a Class 3 Area.

Page 3 of 4

I a Historical Site Assessment and Classification Summary Survey Area Name: Spoils Deposit Area Designator: OOL-07 Drawings J Figure 7-1A References-;

1. YNPS Decommissioning Plan, Revision 0.0. I-

2. "Radionuclides for Building Surfaces and Soil DCGL Determinations," YA-REPT-00-001-03 .

It Page 4 of 4

Historical Site Assessment and Classification Summary Survey Area Name: YNPS Site Impacted Perimeter Zone Designator: 0OL-08 Survey Area Description Survey area OOL-08 consists of land area that encompasses southern boundary of the YNPS site. Survey area OOL-08 contains about 133414 square meters of soil surface area.

Survey area OOL-08 is bounded by OOL-06, OOL-02, OOL-O, OOL-09, 0OL-12, OOL-14 and OOL-15 on the north and non-impacted YAEC owned property on the east, south and west. -

There are no sub-surface systems that traverse or connect within survey area 00L08.

Items of note located within or adjacent to survey area OOL-08 include:

• The Wheeler Brook Divertment Project

• The 177 electrical transmission line

• Southeast Construction Fill Area OOL,09 Page 1 of 6

a-Historical Site Assessment and Classification Summary Survey Area Name: YNPS Site Impacted Perimeter Zone Designator: OOL-08 Survey Area History Survey area OOL-08 is not part of the RCA. There are no radioactive systems present in OOL,08.Survey area OOL,08 was not used for storing radioactive material or processing or packaging radioactive waste.

Surveys Area OOL-08 represents a buffer zone around the Class 1 and Class 2 survey areas. Survey area OOL08 also includes that portion of the YNDS site potentially impacted by wind borne radioactive contamination.

Scoping/Characterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan (Ref 1).

Decommissioning No decommissioning activities have been performed for survey area OOL-08.

Page 2 of 6

Historical Site Assessment and Classification Summary Survey Area Name: YNPS Site Impacted Perimeter Zone Designator: 00 -08 Findings Survey area OOL.08 is a land area that is located in the non-RCA portion of the site.'

Survey area OOL-08 is minimally impacted by wind borne radioactive contamination potentially released from the YNPS site.

The radionuclide mix-likely to be present in OOL-08 includes all radionuclides identified in the radioactive systems of the plant (Ref 2). The primary radionuclidesbof concern for survey area 00L-08 are Co-60, Cs-137, Ag-108m, Sr-90, Ni-63 and tritium.'

CurrentStatus Survey area OOL-08 potentially may be further impacted by continued decommissioning activities.

A soil sample location map (Figure 09, 9A, 9B) has been prepared to show the distribution of sampling locations in OOL-08. Only samples representative of soils still present are included on the map (samples of soils representative of soils removed during remediation activities are not presented). Four survey media types were assessed in OOL-08, Humus, Sod, Sediment and Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL. There are separate sets of Tables 1-4 for each survey media. All are evaluated as fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not hale detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL.08 is presented at the end of Table 1 for each survey medium. The results are summarized below.

Humus: Mean SOF is 0.098.

Maximum SOF for a single humus sample is 0.114 (key#383) located up slope south of Wheeler Brook east of the power line.

Minimum SOF for a single humus sample is 0.066 (key#374) located outside the exclusion area fence south of the potable water tank.

Sediment: Mean SOF is 0.010.

Maximum SOF for a single sediment sample is 0.019 (key#81) located east of Wheeler Brook and south of the former railroad tracks.

Minimum SOF for a single sediment sample is 0.0059 (key#203) located east of Wheeler Brook and south of the former railroad tracks.

Page 3 of 6

Historical Site Assessment and Classification Summary Survey Area Name: YNPS Site Impacted Perimeter Zone Designator: 00 -08 Sod: Mean SOF is 0.131.

Maximum SOF for a single sod sample is 0.269 (key#655) located west of the JSFSI under the power line.

Minimum SOF for a single sod sample is 0.049 (key#657) located west of Wlheler Brook and south of the SCFA.

Soil: Mean SOF is 0.051.

Maximum SOF for a single soil sample is 0.345 (key#291) located south of the southwest comer of the former switchyard.;

Minimum SOF. for a single soil sample is 0.004 (key#220, 932) located south of SCFA and up slope from Wheeler Brook, located on top of the retaining wall south of OOL- 12.

'. .. ' ! - I I I . ..

I . .. 1.:. - .1!  ; .' ,

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Page 4 of 6

Historical Site Assessment and Classification Summary Survey Area Name: YNPS Site Impacted Perimeter Zone Designator: OOL-08 Classification Statement Based upon the historical use and radiological conditions associated with this survey area OOL-08 is identified as a Class 3 Area.

Page 5 of 6

Historical Site Assessment and Classification Summary Survey Area Name: YNPS Site Impacted Perimeter Zone Designator. OOL-08 Drawings 9699-FY-5A Figure 7- 1A References I YNPS Decommissioning Plan, Rev. 0.0.

2. "Radionuclidesfor0BuildingSurfacesandSoilDCGLDeterninations,"YA-REPT-00-001-03 Page 6 of 6

Pagel of I Table I Sum of Fractions OOL-08 -- Humus Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 383 OF-215 OFTZ-21 5 0.114 374 OF-206 OFTZ-206 0.066.

371 OF-201 OFTZ-20 1 0.113 Min 0.066 Max 0.114

,Mean 0.098

Table 2 Page I of 1 Statistical Data Summary - OOL.08 -- Humus Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ag-108m pCi/g 0 3 0.000 Co-58 pCi/g 0 3 0.000 Co-60 pCi/g 0 3 0.000 Cs-134 pCi/g 0 3 0.000 Cs-137 pCi/g 3 3 1.196 0.332 0.813 1.392 1.384 Mn-54 pCi/g 0 3 0.000 C (

Page I of I Table 3 Summary of Detected Results Above Criteria OOL4O8 -- Humus Yankee Nuclear Power.Station Rowe, MIA DCGLHumus

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results: Concentration 'Units Criterion Detected Ag-i 08m 0 3 8.52 pCilg 0 Co-58 0 3 l pCilg 0 Co-60 0 3 4.84 pCi/g 0 Cs-1 34 0 3 6.71 pCi/g 0 Cs-137 3 3 12.24 pCilg 0 1.39 Mn-54 0 3 21.66 pcilg 0

3L-Table 4 Page I of I Rad OOL-08 - Humus (pCi/g)

Yankee Nuclear Power Station Rowe, MA I

Station (Key) OF-201 (371) OF-206 (374) OF-215 (383)

Sample ID OFTZ-201 OFTZ-206. OFTZ-215 Date Sampled 10/14/1994 10/14/1994 10/18/1994.

Ag-108m 0.078 UM 0.085 UM 0.08 UM Co-58 0.1 UM 0.079 UM 0.095 UM Co-60 0.188UM 0.151 UM 0.102 UM Cs-134 0.077 UM 0.064 UM 0.07 UM Cs-137 1.384 0.813 1.392 Mn-54 0.095 UM 0.093 UM 0.093 UM SOF 0.113 0.066 0.114 1

J-U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Humus Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Page I or i Table I Sum of Fractions OOL008 -- Sediment Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 269 0G004-037 OGOO4GUFN037 0.008 267 0G004-035 OGO04GUFN036 0.009 203 0G003-035 0G003GUFN036 0.005' 81 0G002-035 0G002GUFN035 0.019 Min , 0.005 Max 0.019 Mean 0.010 I I

Table 2 Page I of I Statistical Data Summary - OO-08 -- Sediment Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 6 6 0.778 0.258 0.452 1.192 0.774 Ag-108m pCi/g 0 6 0.000 Ag-i lOm pCi/g 0 6 0.000 Am-241 pCi/g 0 6 0.000 Bi-212 pCi/g 4 5 0.846 0.342 0.555 1.278 0.775 Bi-214 pCi/g 5 5 0.541 0.171 0.365 0.738 0.521 Cc-144 pCi/g 0 6 0.000 Co-58 pCi/g 0 6 0.000 Co-60 pCi/g 0 6 0.000 Cs-134 pCi/g 0 6 0.000 Cs-137 pCi/g 4 6 0.122 0.076 0.056 0.232 0.100 Fe-59 pCi/g 0 6 0.000 K-40 pCi/g 5 6 13.008 5.714 3.379 18.680 14.070 Mn-54 pCi/g 0 6 0.000 Nb-95 pCi/g 0 6 0.000 Pb-212 pCi/g 6 6 0.757 0.262 0.491 1.122 0.696 Pb-214 pCi/g 6 6 0.538 0.211 0.246 0.786 0.510 Ra-226 pCi/g 3 4 1.857 0.358 1.483 2.196 1.892 Ru-103 pCi/g 0 6 0.000 Ru-106 pCi/g 0 6 0.000 Sb-i 24 pCi/g 0 6 0.000 Sb-125 pCi/g 0 1 0.000 Tl-208 pCi/g 4 4 0.659 0.274 0.447 1.034 0.578 Zn-65 pCi/g 1 6 0.218 0.218 0.218 0.218 Zr-95 pCi/g 0 6 0.000 C ( C 9

Page I of I Table 3 Summary of Detected Results Above Criteria OOLr08 -- Sediment Yankee Nuclear Power Station Rowe, MA DCGL_Sediment

1. Sample Criterion # Detects Above Maximum Parameter :' # Detects Results - Concentration Units 'Criterion ': Detected Ac-228 6 6 '" pCi/g *. 0 1.19 Ag-108m 0 6 8.52 pCi/g 0 Ag-l l Om 0 6 pCitg $ 0O' An-241 0 6 44.35 pCi/g Bi-212 4 5, pCi/g 0-. 1.28 Bi-214 5 5 pCilg 0.74 Ce- 144 0 6 pCi/g 0 Co-58 0 6' pCilg 0 Co-60 0 6 4.84 pCi/g 0*

Cs-134 0 6 6.71 pCi/g 0 Cs-137 4 6 12.24 pCi/g 0 0.23 Fe-59 0 6 pCilg 0 K-40; 5 6' :pCig 0 - 18.68 Mn-54 0 6 21.66 pCi/g 0 Nb-95 0 6 pCitg 0 Pb-212 6 6 pCilg 0 1.12 Pb-214 6 6 pCi/g 00 0.79 Ra-226 3 4 0 2.20 Ru-103 0 6 0 Ru-106 0 6 68.21 pCi/g 0 Sb-124 0 6 pCi/g Sb-125 0 1 37.73 pCi/g 0 TI-208 4 4 pCi/g 0 1.03 Zn-65 I 6 pCilg 0 0.22 Zr-95 0 6 pCi/g 0

Table 4 Page I of 2 Rad OOL Sediment (pCi/g).

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G002-035 (81) OG003-035 (203) 0G003-037 (205) 0G003-038 (206)

Sample ID OGO02GUFN035 OGO03GUFN036 0G003GUFN037 OGO03GUFN038 Date Sam pled 7/13/1998 7/16/1998 7/16/1998 7/16/1998 Ac-228 0.8829 0.7007 0.5955 0.4522 Ag-108m 0.005636 U -0.00999 U -0.01186 U -0.0155 U Ag-110m -0.04173 U -0.01443 U 0.007884 U -0.03452 U Am-241 0U 0U 0U 0U Bi-212 1.278 0.5876 0.5549 Bi-214 0.5211 0.3646 0.3892 Ce-144 -0.1858 U -0.1121 U -0.0339 U 0.0669 U Co-58 -0.03174 U 0.02123 U -0.04043 U 0.009206 U Co-60 0.01052 U 0.02129 U -0.0001121 U -0.02877 U Cs-134 -0.01262 U -0.03322 U -0.09298 U 0.004688 U Cs-137 0.2319 0.05568 0.03144 U -0.01408 U Fe-59 0.1324 U -0.04909 U -0.008493 U 0.001229 U K-40 14.07 14 14.91 0.08189 U Mn-54 0.02057 U 0.01204 U 0.001556 U 0.0148 U Nb-95 -0.001668 U -0.1073 U 0.05122 U 0.02559 U Pb-212 0.9866 0.55 0.5637 0.4908 Pb-214 0.4899 0.2463 0.4021 0.5304 Ra-226 1.201 U 1.483 Ru-103 -0.02074 U 0.03725 U 0.01681 U -0.06758 U Ru-106 -0.7413 U -0.1723 U 0.04196 U -0.07703 U Sb-124 0U 0.01427 U -0.01001 U -0.01166 U Sb-125 TI-208 0.447 0.4631 Zn-65 -0.08158 U -0.06081 U 0.1082 U 0.2184 Zr-95 0.03855 U -0.01697 U 0.01081 U -0.01007 U SOF 0.019 0.005 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 2 Rad OOL-08 -'Sediment (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G004-035 (267) 0G004-037 (269)

Sample ID OGO04GUFN036 OGO04GUFN037 Date Sampled 7/13/1998 7/13/1998 Ac-228 0.8465 1.192 Ag-108m -0.00259 U - -0.03141 U Ag-110m -0.01715 U -0.02704 U Am-241 0U 0U Bi-212 0.606 U 0.9621 Bi-214 0.6923 0.7381 Ce-144 -0.1076 U 0.01822 U Co-58 0.03117 U -0.0174 U Co-60 0.008381 U -0.01455 U Cs-134 -0.02873 U -1.448 U Cs-137 0.1071 0.09296 Fe-59 -0.05715 U 0.03396 U K-40 18.68 3.379 Mn-54 0.009301 U 0.02903 U Nb-95 -0.03769 U 0.03287 U Pb-212 0.8274 1.122 Pb-214 0.7744 0.7863 Ra-226 2.196 1.892 Ru-103 -0.0387 U -0.01001 U Ru-106 -0.1751 U -0.2026 U Sb-124 0.01839 U 0.01619 U Sb-125 0.3712 U TI-208 0.6919 1.034 Zn-65 -0.1263 U -0.1431 U Zr-95 -0.04625 U 0.04459 U SOF 0.009 0.008 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sediment Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Page I of I Table 1 Sum of Fractions OOU8 -- Sod Yankee Nuclear Power Station Rowe, MA 'U Station Key Station Sample ID Sum Of Fractions 659 IA-771 IATZ-71 0.147 657 IA-70 IATZ-70 0.049 655 IA-69 IATZ-69 0.269 653 IA-68 IATZ-68 0.057 Min 0.049 Max 0.269 Mean 0.131

( (I (

Table 2 Page I or i Statistical Data Summary - OOb.08 -- Sod Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Co-58 pCi/g 0 5 0.000 Co-60 pCilg 2 5 0.134 0.001 0.133 0.134 0.134 Cs-134 pCilg 0 5 0.000 Cs-137 pCi/g 4 5 1.427 1.086 0.605 2.950 1.076

Page I or I Table 3 Summary of Detected Results Above Criteria OOL-08 -- Sod Yankee Nuclear Power Station Rowe, MIA DCGLSod

1. Sample Criterion * # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Co-58 0 5 pCilg 0 Co-60 2 5 4.84 pCi/g 0 0.13 Cs-134 0 6.71 pCilg 0 Cs-137 4 5 12.24 pCilg 0 2.95 "U

Table 4 Page 1 of I Rad OOL-08 ---Sod (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) IA-30 (634) IA-68 (653) IA-69 (655) IA-70 (657) IA-71 (659)

Sample ID IATS-30A IATZ-68 . IATZ-69 IATZ-70 IATZ-71 Date Sampled 5/19/1993 6/1411993 6/14/1993 6/11/1993 6/11/1993 Co-58 0.115 UM 0.086 UM 0.055 UM 0.039 UM 0.052 UM Co-60 0.155 UM 0.105UM- .- 0.133 0.0577 UM 0.134 Cs-134 0.098 UM 0.085 UM 0.056 UM 0.048 UM 0.036 UM Cs-137 0.165 UM 0.692 2.95 0.605 1.46 SOF 0.057 0.269 0.049 0.147

. I . . .

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sod Basic Data 12/15/2003 Blank results indicate chemical not analyzed

1L_

Page I of 8 Table 1 Sum of Fractions 001,08 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 197 0G003-026 0G003GUFU026 0.155 10 0G016-001 OGO16GUFUOOI 0.031 227 0G008-022 0G008GUFD022 0.007 226 0G008-020 OGO08GUFDO20 0.005 224 0G008-018 OG008GUFDO18 0.011 222 0G008-016 0G008GUFD016 0.078 221 0G008-015 OGO08GUFDO15 0.024 220 0G008-014 OGO08GUFDO14 0.004 202 0G003-032 0G003GUFU032 0.103 201 0G003-031 OGO03GUFU031 0.135 200 0G003-030 OGO03GUFU030 0.051 229 0G008-024 0G008GUFD024 0.004 198 0G003-027 0G003GUFU027 0.043 230 0G008-025 OG008GUFDO25 0.011 196 0G003-024 OGO03GUFU024 0.059 195 0G003-023 0G003GUFU023 0.312 194 0G003-022 OGO03GUFU022 0.072 193 00003-021 0G003GUFU021 0.076 192 0G003-020 OG003GUFU020 0.130 191 0G003-019 OGO03GUFU019 0.068 190 0G003-018 0G003GUFU018 0.105 189 0G003-017 0G003GUFU017 0.035 188 ogOO3-016 ogO03gufuO16 0.046 187 ogOO3-015 ogO03gufuO15 0.070 199 0G003-028 0G003GUFU028 0.043 245 0G004-008 OG004GUFU008 0.010 266 0G004-032 0G004GUFD032 0.006

Page 2 of 8 Table 1 Sum of Fractions

'00L08 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key : Station Sample ID Sum Of Fractions 261 0G004-026 OG004GUFDO26 0.013 258 i 0G004-022 OG004GUFDO22 0.008 257 0G004-020 OG004GUFDO20 0.010 254 0G004-017 OG004GUFDO17 0.008 253 0G004-016 - OG004GUFDO16 0.036 252 0G004-015 OG004GUFDO15 0.013 251 0G004-014 OG004GUFDO14 0.007 250 00004-013 OG004GUFU013 0.047 249 0G004-012 OG004GUFDO12 0.010 228 0G008-023 OG008GUFDO23 0.005 246 0G004-009 OG004GUFDO09 0.004 184 0G003-012 OG003GUFU012 0.054 244 0G004-007 O004GUFDO07 0.014 243 0G004-006 OG004GUFU006 0.153 242 0G004-005 OG004GUFDO05 0.047 241 0G004-004 OG004GUFU004 0.104 240 0G004-003 0GO04GUFD003 0.029 235 0G008-030 OG008GUFDO30 0.028 234 0G008-029 OG008GUFDO29 0.012 233 0G008-028 OG008GUFDO28 0.011 232 0G008-027 0G008GUFD027 0.019 231 0G008-026 'OG008GUFD026 0.010 247 0G004-010 OG004GUFUO1O 0.010 21 0G016-014 0GO16GUFU014 0.032 33 0G016-027 0O016GUFU027 0.040 32 0G016-026 0G016GUFU026 0.075 31 0G016-025 0G016GUFU025 0.114

Page3 of 8 Table 1 Sum of Fractions OOL08--Soil Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 30 0G016-024 OGO16GUFU024 0.103 29 0G016-023 OGO16GUFU023 0.081 28 0G016-022 OGO16GUFU022 0.090 27 0G016-021 OGO16GUFU021 0.019 26 0G016-020 OGO16GUFU020 0.033 25 0GO16-018 OGO16GUFU018 0.093 24 0G016-017 OGO16GUFU017 0.052 186 ogOO3-014 ogO03gufuO14 0.065 22 0G016-015 OGO16GUFDO15 0.028 36 0G016-031 OGO16GUFDO31 0.077 20 0G016-013 OGO16GUFU013 0.073 19 0G016-012 OGO16GUFU012 0.054 18 0G016-011 OGO16GUFUOII 0.041 17 0G016-010 OGO16GUFUO1O 0.028 16 0G016-009 OGO16GUFU009 0.024 15 0G016-008 OGO16GUFU008 0.033 14 0G016-007 OGO16GUFU007 0.026 13 0G016-004 OGO16GUFDO04 0.034 12 0G016-003 OGO16GUFU003 0.031 11 0G016-002 OGO16GUFU002 0.018 23 0G016-016 OGO16GUFDO16 0.089 155 0G007-027 OG007GAFDO27 0.008 273 OG005-003 OGOOSGUFDO03 0.041 183 0G003-011 OG003GUFUOII 0.059 182 0G003-010 OG003GUFUO1O 0.023 181 0G003-009 OG003GUFU009 0.105 180 0G003-008 OG003GUFU008 0.097

Page 4of 8 Table I Sum of Fractions

.OOL-08 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key , Station :Sample ID Sum Of Fractions 179 0G003-007 OGO03GUFU007 ' 0.199 178 0G003-006 OG003GUFU006 0.049 177 0G003-005 'OG003GUFU005 0.227 176 0G003-004 O003GUFU004 0.063 175 0G003-003 OG003GUFU003 0.107 34 0G016-028 0O016GUFU028 0.150 173 0G003-001 OG003GUFUOO1 0.069 35 0G016-029 OG016GUFU029 0.158 154 00007-026 OG007GAFDO26 0.007 153 - 0G007-025 ;OG07GAFDO25 0.005 80 0G002-032 0G002GUFU032 0.085 78 00002-030 OG002GUFU030 0.010 75 00002-026 0G002GUFU026 0.063 74 0G002-025 OG002GUFU025 0.026 73 ogOO2-024 ogO02gufuO24 0.050 39 0G016-034 ;OG16GUFU034 0.020 38 0G016-033 OGO06GUFD033 0.038 37 0G016-032 :OG016GUFU032 0.081 185 ogOO3-013 ogO03gufuO13 0.081 174 0G003-002 OG003GUFU002 0.052 917 0G009-009 OG009GUFU009 0.005 931 0G009-030 OG009GUFU030 0.028 930 0G009-029 OG009GUFU029 0.147 929 0G009-028 OG009GUFU028 0.068 928 0G009-026 OG009GUFU026 0.058 927 0G009-025 OG009GUFU025 0.029 926 0G009-023 OG009GUFU023 0.063

M-Page 5 of 8 Table 1 Sum of Fractions OOL-08 -- Soil Yankee Nuclear Power Station Rowe, MNIA Station Key Station Sample ID Sum Of Fractions 925 0G009-018 0GO09GUFU018 0.029 924 0G009-016 0GO09GUFU016 0.029 923 0G009-015 OGO09GUFU015 0.047 922 0G009-014 OGO09GUFU014 0.047 423 OF-255 OFTS-255 0.060 920 0G009-012 0GO09GUFU012 0.056 978 0G020-019 OGO20GUFDO19 0.005 916 0G009-008 OGO09GUFU008 0.038 932 0G009-031 OGO09GUFDO31 0.004 918 0G009-010 OGO09GUFDO1O 0.004 657 IA-70 IATS-70 0.027 655 IA-69 IATS-69 0.015 630 IA-23 IATS-23 0.040 629 IA-20 IATS-20 0.051 426 OF-258 OFTS-258 0.096 425 OF-257 OFTS-257 0.066 271 0G005-001 OGOO5GUFDOO1 0.030 921 0G009-013 OGO09GUFU013 0.061 3076 SE421 SE421 0.008 3257 TS529 TS529 0.010 3204 TS439 TS439 0.066 3203 TS438 TS438 0.010 3087 SE432 SE432 0.013 3086 SE431 SE431 0.004 3085 SE430 SE430 0.017 3084 SE429 SE429 0.011 3083 SE428 SE428 0.010

Page 6 of 8 Table I Sum of Fractions OOI,08 -- Soil Yan'kee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 3082 SE427 I SE427 0.009 3081 SE426 SE426 0.009 933 0G009-033 OG009GUFU033 0.064 3078 SE423 SE423 0.005 934 0G009-034 OG009GUFU034 0.057 3075 SE420 SE420 0.006 3072 SE417 SE417 0.006 986 0G020-029 0GO20GUFU029 0.135 985 0G020-026 :OG020GUFDO26 0.006 984 0G020-025 OGO20GUFDO25 0.005 983 0G020-024 OGO20GUFDO24 0.292 982 0G020-023 OGO20GUFDO23 0.010 981 0G020-022 OGO20GUFDO22 0.008 980 0G020-021 OGO20GUFDO21 0.005 979 0G020-020 OGO20GUFDO20 0.012 407 OF-239 I OFTS-239 0.197 3079 SE424 SE424 0.007 292 OGOOS-024 OGO05GUFDO24 0.020 374 OF-206 OFTS-206 0.025 373 OF-205 OFTS-205 0.014 371 OF-201 OFTS-201 0.052 370 OF-200 OFTS-200 0.023 300 0G005-032 OG005GUFDO32 0.014 299 0G005-031 OG005GUFDO31 0.034 298 OGO05-030 OG005GUFU030 0.038 297 0G005-029 OG005GUFU029 0.057 296 OG005-028 OG005GUFDO28 0.042

Page 7 of 8 Table I Sum of Fractions OOL08 -- Soil Yankee Nuclear Power Station Rowe, MIA Station Key Station Sample ID Sum Of Fractions 295 0G005-027 OG005GUFDO27 0.023 424 OF-256 OFTS-256 0.091 293 0G005-025 OG005GUFDO25 0.028 378 OF-210 OFTS-210 0.007 291 0G005-023 OG005GUFDO23 0.345 289 0G005-021 OG005GUFDO21 0.016 288 OGO05-020 OG005GUFDO20 0.007 287 0G005-019 OGO05GUFDO19 0.028 286 OGO05-018 OG005GUFDO18 0.019 285 0G005-016 OG005GUFDO16 0.096 284 OGO05-015 OG005GUFDO15 0.021 283 0G005-014 OG005GUFDO14 0.007 274 OG005-004 OG005GUFDO04 0.020 3258 TS530 TS530 0.010 294 0G005-026 OG005GUFDO26 0.063 390 OF-221 OFTS-221 0.052 406 OF-238 OFTS-238 0.021 405 OF-237 OFTS-237 0.008 404 OF-236 OFTS-236 0.066 403 OF-235 OFTS-235 0.040 402 OF-234 OFTS-234 0.040 401 OF-232 OFTS-232 0.097 400 OF-231 OFTS-231 0.065 399 OF-230 OFTS-230 0.103 398 OF-229 OFTS-229 0.058 397 OF-228 OFTS-228 0.009 376 OF-207 OFTS-207 0.153

Page8or 8 Table l Sum of Fractions OOL-08 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 393 OF-224 OFTS-224 0.009 377 OF-209 OFTS-209 0.134 389 OF-220 OFTS-220 0.096 388 OF-219 OFTS-219 0.127 387 - OF-218 OFTS-218 0.017 386 OF-217 OFTS-217 0.057 385 OF-216 OFTS-216 0.042 383 OF-215 OFTS-215 0.065 382 OF-214 OFTS-214 0.050 381 OF-213 OFTS-213 0.086 380 OF-212 OFTS-212 0.010 379 OF-2 11 OFTS-211 0.075 272 OGOOS-002 0GO05GUFDO02 0.021 394 OF-225 OFTS-225 0.007 Min 0.004 Max 0.345 Mean 0.051

Table 2 Page I of I Statistical Data Summary - OOL-08 -- Soil Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 175 176 0.740 0.230 0.197 1.842 0.754 Ag-108m pCilg 4 229 0.034 0.008 0.023 0.044 0.034 Ag-I lOm pCilg 3 190 0.057 0.008 0.047 0.061 0.061 Am-241 pCi/g 0 190 0.000 Ba-133 pCilg 0 3 0.000 Ba-140 pCi/g 0 3 0.000 Bi-212 pCilg 102 130 0.888 0.254 0.448 1.829 0.853 Bi-214 pCi/g 164 164 0.482 0.113 0.211 0.901 0.478 Ce-141 pCi/g 0 2 0.000 Cc-144 pCilg 8 190 0.296 0.046 0.219 0.360 0.308 Co-58 pCi/g 2 238 0.074 0.007 0.069 0.079 0.074 Co-60 pCi/g 4 238 0.404 0.374 0.040 0.754 0.411 Cr-51 pCilg 1 2 0.656 0.656 0.656 0.656 Cs-134 pCilg 3 238 0.052 0.017 0.033 0.066 0.058 Cs-136 pCilg I 1 2.793 2.793 2.793 2.793 Cs-137 pCilg 200 238 0.587 0.622 0.040 4.225 0.423 Eu-152 pCi/g 3 8 0.938 0.777 0.208 1.755 0.850 Fe-59 pCilg 3 190 0.147 0.023 0.125 0.172 0.144 1-131 pCilg 0 1 0.000 K-40 pCVg 186 190 16.282 4.928 1.890 27.010 17A25 Kr-85 pCi/g 2 2 6.399 3.262 4.092 8.705 6.399 Mn-54 pCi/g 2 229 0.123 0.105 0.049 0.197 0.123 Nb-95 pCi/g 11 190 0.078 0.028 0.053 0.152 0.068 Np-239 pCilg 0 6 0.000 Pb-212 pCilg 182 187 0.701 0.246 0.104 .1.623 0.726 Pb-214 pCi/g 184 185 0.510 0.117 0.167 0.811 0.525 Ra-226 pCilg 100 128 15.740 135.988 0.852 1362.000 1.984 Ru-103 pCi/g 4 190 0.064 0.014 0.050 0.083 0.062 Ru-106 pCi/g 9 190 0.432 0.155 0.230 0.714 0.392 Sb-124 pCilg 3 190 0.048 0.012 0.035 0.055 0.055 Sb-125 pCi/g I 18 0.215 0.215 0.215 0.215 Sc-75 pCi/g 0 2 0.000 TI-202 pCi/g 0 2 0.000 TI-208 pCilg 128 130 0.712 0.195 0.209 1.282 0.711 U-235 pCilg 0 2 0.000 Zn-65 pCi/g 2 190 0.222 0.097 0.154 0.291 0.222 Zr-95 pCi/g 10 190 0.087 0.018 0.064 0.122 0.080

(_ (. ( I

Page I or i Table 3 Summary of Detected Results Above Criteria

00,L08 -- Soil Yankee Nuclear Power Station Rowe, MA

DCGL'Soil

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ac-228 175 176 pCilg 0 1.84 Ag-108m 4 229 8.52 pCilg 0 0.04 Ag- lOnm 3 190 pCilg 0 0.06 A-r241 0 190 44.35 pCilg 0 Ba-133 0 3 pCilg 0 Ba- 140 0 3 pCilg 0 Bi-212 102 130 pCi/g 0 1.83 Bi-214 164 164 pCilg 0 0.90 Ce- 141 0 2 pCilg 0 Ce-144 8 190 pCilg .0 -0.36 Co-58 2 238 pCilg 0 0.08 Co-60 4 238 4.84 pCilg 0 .0.75 Cr-5I I 2 1  ; pCilg 0 0.66 Cs-134 3 238 6.71 pCilg 0 0.07 Cs-136 I 1 pqilg 0 2.79 Cs-137 200 238 12.24 pCilg 0 4.23 Eu-152 3 8 12.06 pCilg '0 1.76 Fe-59 3 190 pCilg 0 0.17 1-131 0 1 pCilg 0 K-40 186 190 pCi/g 27.01 Kr-85 2 2 pCi/g ,0 8.71 Mn-54 2 229 21.66 pCilg 0 0.20 Nb-95 11 190 pCilg 0 0.15 Np-239 0 6 pCilg 0 Pb-212 182 187 pCilg 0 1.62 Pb-214 184 185 pCilg 0 0.81 Ra-226 100 128 pCilg '0 1362.00 0

Ru-103 4

• 190 pCi/g '0.08 0

Ru-106 9 190 1 68.21 pCi/g 0.71 0

Sb-124 3

• 190 pCilg .0 0.05 Sb-125 1 18 37.73 pCilg 0.21 0

Se-75 0 2 pCilg 0

TI-202 0 2 pCi/g .0 TI-208 128 130 pCilg 0o 1.28

• 0 U-235 0 2 pCilg :0 Zn-65 2 190 .0 0.29 Zr-95 10 190 PCilg 0.12

Table 4 Page I of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) IA-20 (629) IA-23 (630) IA-30 (634) IA-31 (635) IA-32 (636) IA-68 (653) IA-69 (655)

Sample ID IATS-20 IATS-23 IATS-30B IATS-31 IATS-32 IATS-68 IATS-69 Date Sampled 5/6/1993 5/611993 J.5/6/1993 5/6/1993 5/6/1993 6/14t1993 6/14/1993 Ac-228 Ag-108m Ag-1 10m Am-241 Ba-133 Ba-140 Bi-212 Bi-214 Ce-141 Ce-144 Co-58 0.038 UM 0.04 UM 0.043 UM 0.086 UM 0.103 UM 0.112 UM 0.064 UM Co-60 0.0599 UM 0.0617 UM 0.0567 UM 0.116 UM 0.141 UM 0.133 UM 0.0958 UM Cr-51 Cs-134 0.038 UM 0.043 UM 0.041 UM 0.081 UM 0.077 UM 0.126 UM 0.066 UM Cs-136 Cs-137 0.629 0.48410.0597 UM 0.129 UM 0.146 UM 0.136 UM 0.188 Eu-152 Fe-59 1-131 K-40 Kr-85 Mn-54 Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 TI-202 TI-208 U-235 Zn-65 Zr-95 SOF 0.04 0.015 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 52 Rad OOL-08 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key)' IA-70 (657) IA-71 (659) - OF-200 (370) - OF-201 (371) OF-205 (373) IOF-206 (374) .

Sample lD IATS-70. . IATS-71 OFTS-200 -: OFTS-20 1 OFTS-205 OFTS-206-Date Sampled 6/14/1993 6/14/1993 110/19/1994: 10/14/1994 10il7/1994 110/14/1994 Ac-228 0 Ag-108m 0.046 UM 0.059 UM 0.057 UM 0.052 UM Ag-110in Am-241 Ba-133 Ba-140 Bi-212 Bi-214 Ce-141 Ce-144 Co-58 0.056 UM 0.06 UM 0.064 UM ' 0.072 UM 0.056 UM 0.058 UM Co-60 0.0625 UM 0.0884 UM 0.0691 UM ' 0.0923

. UM 0.0996 UM 0.092 UM Cr-51 Cs-134 U.U49 UM 0.068 UM - 0.054 UM 0.056 UM 0.053 UM 0.057 UM Cs-136 Cs-137 0.33210.144 UM  ; 0.287 0.635 '0.167 0.311 Eu-152 Fe-59 1-131 K-40 Kr-85 Mn-54 0.064 UM 0.074 UM 0.074 UM 0 0.059 UM Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 TI-202 TI-208 0.'

U-235 Zn-65 Zr-95 SOF 0.027 I ;0.023 .10.052 ' 0.014 0.025 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

-- ---- it-Table 4 Page 3 of 52 Rad OOL-08 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key). OF-27 (376) OF-209 (377) OF-210 (378) OF-211 (379) IOF-212 (380) OF-213 (381)

Sample ID OFTS-207 - OFTS-209 OFTS-210 OFTS-211' OFTS-212 OFTS-213 ,

Date Sampled 10/19/1994 110/19/1994 10/19/1994 10/19/1994:; 10/19/1994 10/18/1994 Ac-228 Ag-108m 0.061 UM 0.057 UM 0.037 UM 0.057 UM 0.056 UM 0.061 UM .

Ag-110mi Am-241 Ba-133 Ba-140 Bi-212 Bi-214 Ce-141 Ce-144 Co-58 0.08 UM 0.062 UM 0.053 UM 0.063 UM 0.077 UM 0.061 UM Co-60 0.698 0.0952 UM 0.079 UM 0.0935 UM 0.0803 UM 0.0792 UM Cr-51 Cs-134 0.077 UM - 0.07 UM 0.036 UM 0.045 UM 0.067 UM 0.058 UM Cs-136 Cs-137 0.121 UM 1.641 0.091 0.922 0.124 1.054 Eu- 152 Fe-59 1-131 K-40 Kr-85 Mn-54 0.19710.085 UM 0.051 UM 0.077 UM 0.058 UM 0.045 UM Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 TI-202 TI-208 U-235 Zn-65 Zr-95 SOF 0.153 0.134 0.007 0.075 0.01 0.086 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 4 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-214 (382) OF-215 (383) 1OF-216 (385) OF-217 (386) IOF-218 (387) OF-219 (388)

Sample lD OFTS-214 OFTS-215 -: OFTS-216 IOFTS-217 IOFTS-218' IOFTS-219 Date Sampled 10/19/1994 10/19/1994 110/19/1994 *10/18/1994 110/19/1994 410/19/1994 Ac-228 Ag-108m 0.049 UM' 10.058 UM 0.054 UM 0.046 UM 0.055 UM -' 0.049 UM Ag-1 lOrn Am-241 Ba-133 Ba-140 Bi-212 Bi-214 Ce-141 Ce-144 Co-58 0.055 UM 0.066 UM 0.053 UM 0.059 UM 0.069 UM 0.054 UM Co-60 0.0592 UM 0.0669 UM 10.0635 UM 0.081 UM 0.0553 UM 0.0679 UM Cr-51 Cs-134 0.063 UM 0.07 UM 0.05 UM '10.046 UM 0.066 UM 0.054 UM '

Cs-136 Cs-137 - 0.607 I'0 0.5161 0.702 0.202 1.556 Eu-152 Fe-59 1-131 K-40

.111- Kr-85 Mn-54 0.065 UM 0.066 UM 0.067 UM 0.055 UM -10.064 UM  ; I0.059 UM Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 Tl-202 Tl-208 U-235 Zn-65 Zr-95 SOF 0.05 0.0( 0.042 0.0571 ' ' 0.017 0.127 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 5 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-220 (389) OF-22l (390) OF-222 (391) OF-223 (392); OF-224 (393) OF-225 (394)

%<2' Sample ID OFTS-220 OFTS-221 OFFS-222 OFTS-223 1 - OFTS-224 OFTS-225 Date Sampled 10/18/1994 - 10/18/1994 11/14/1994 11/14/1994 111/14/1994 11/14/1994 -

Ac-228 Ag-108m 0.07 UM 0.069 UM 0.048 UM 0.059 UM 0.05 UM 0.053 UM Ag-110m Am-241 Ba-133 Ba-140 Bi-212 Bi-214 Ce-141 Ce-144 Co-58 0.075 UM 0.066 UM 0.063 UM 0.076 UM 0.069 UM 0.065 UM Co-60 0.113 UM 0.089 UM 0.071 UM 0.0753 UM 0.0597 UM 0.101 UM Cr-51 Cs-134 0.083 UM 0.075 UM 0.055 UM 0.062 UM 0.056 UM 0.063 UM Cs-136 Cs-137 1.177 0.63810.0762 UM 0.0978 UM 0.112 0.0872 Eu-152 Fe-59 1-131 K-40 Kr-85 Mn-54 0.086 UM 0.081 UM 0.065 UM 0.077 UM 0.062 UM 0.075 UM Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 TI-202 TI-208 U-235 Zn-65 Zr-95 SOF 0.096 0.052 0.009 0.007 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 6 of 52 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 'JOF-226 (395) OF-227 (396) OF-228 (397) 1 OF-229 (398) OF-230 (399) OF-231 (400)

Sample ID j OFTS-226 OFTS-227 OFTS-228 OFTS-229 - OFTS-230 . : OFTS-231 Date Sampled 111/9/1994,i 111/15/1994 11/10/1994 11/15/1994 .8 11/14/1994 . 1/14/1994 --

Ac-228 Ag-108m 0.057 UM 0.067 UM 0.046 UM 0.059 UM 0.068 UM 0.069 UM Ag-1 10m Am-241 Ba-133 Ba-140 Bi-212 Bi-214 Ce-141 Ce-144 Co-58,- 0.066 UM 0.077 UM 0.057 UM - 10.066 UM 0.07 UM , 0.08 UM Co-60 0.0895 UM 0.0979 UM : 0.0837 UM 10.0724 UM 0.0866 UM  ; 0.125 UM Cr-SI Cs-134 0.072 UM 0.074 UM 0.07 UM 0.064 UM 0.073 UM 0.066 UM Cs-136 Cs-137 0.0875 UM 0.0958 UM 0.113 0.714 1.26 0.794 Eu-152 Fe-59 1-131 K40 Kr-85 Mn-54 0.087 UM 0.087 UM 0.06 UM 0.058 UM 0.079 UM 0.084 UM Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 T1-202 T1-208 U-235 Zn-65 Zr-95 SOF I I 0.009 0.0581 - 0.103 0.065 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 7 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA

' I Station (Key): OF-232 (401) IOF-234 (402) OF-235 (403) OF-236 (404) IOF-237 (405) OF-238 (406)

Sample ID OFTS-232 OFTS-234 OFTS-235 OFTS-236 j OFTS-237 OFTS-238 Date Sampled 11/14/1994 .j11/21/1994 111/21/1994 11/21/1994 111/21/1994 11/22/1994 Ac-228 Ag-108Im 0.082 UM 0.048 UM 0.058 UM 0.058 UM 0.054 UM 0.053 UM Ag-IlOrn Am-241 Ba-133 Ba-140 Bi-212 Bi-214 Ce-141 Ce-144 Co-58 0.082 UM 0.058 UM 0.061 UM 0.05 UM 0.077 UM 0.069 UM Co-60 0.107 UM 0.0877 UM. 0.091 UM 0.0784 UM 0.0994 UM 0.0834 UM Cr-51 Cs-134 0.065 UM 0.055 UM 0.064 UM 0.055 UM 0.066 UM 0.057 UM Cs-136 Cs-137 1.193 0.49 0.484 0.806 0.0994 0.259 Eu-152 Fe-59 1-131 K-40 Kr-85 Mn-54 0.098 UM 0.069 UM 0.085 UM 0.073 UM 0.067 UM 0.075 UM Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 TI-202 TI-208 U-235 Zn-65 Zr-95 SOF 0.097 0.04 0.04 0.066 0.008 0.021 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 8 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-239 (407) OF-255 (423) JOF-256 (424) T.OF-257 (425) OF-258 (426) ogOO2-021 (70)

Sample ID OFTS-239 OFTS-255 OFTS-256 .: OFTS-257 OFTS-258 ogOO2gufdO21 Date Sampled' 11/22/1994 12/5/1994 12/5/1994' 112/5/1994 - 112/5/1994 j7/9/1998 Ac-228 1.017 Ag-108Im i 10.065 UM 0.045 UM 0.062 UM 0.051 UM' 0.054 UM -0.004625 U Ag-110n .1.. -0.03661 U Am-241 OU Ba-133 Ba-140 Bi-212 0.6416 Bi-214 0.4836 Ce-141 Ce-144 -0.1058 U Co-58 0.071 UM 0.04 UM 0.06 UM; 0.059 UM 0.048 UM -0.01432 U Co-60 0.754 0.0824 UM 0.0829 UM 0.11UM 0.0863 UM -0.0002428 U Cr-5I Cs-134 0.065 UM 0.028 UM 0.058 UM 0.054 UM 0.048 UM 0.007784 U Cs-136 Cs-137, 0.502 0.739 .1.111 0.803 1.17810.03717 U Eu-152 Fe-59 -0.1098 U 1-131 K-40 19.08 Kr-85 Mn-54 0.093 UM 0.047 UM 0.064 UM 0.07 UM 0.049 UM 0.01797 U -

Nb-95 -0.004194 U Np-239 Pb-212 1.011 Pb-214 0.5905 Ra-226 2.255 Ru-103 -0.02214 U Ru-106 0.1799 U Sb-124 -0.02761 U - -

Sb-125 Se-75 Tl-202 i TI-208 ' 0.7742 U-235 Zn-65 0.1552 U Zr-95 ,, . -' 0.02245 U SOF 0.197 i 0.06 0.091 0.066 0.096 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 9 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G002-023 (72) OG002-028 (77) ogOO2-024 (73) -0G002-025 (74) .G002-026 (75)

Sample ID jOGO02GUFDO23 OGO02GUFDO28 ogOO2gufuO24 OGO02GUFU025 OGO02GUFU026 Date Sampled 7/9/1998 17/13/1998 7/9/1998 7/13/1998 l7/13/1998 Ac-228 0.9815 0.9391 0.6016 0.7554 Ag-108m 0.01352 U -0.008396 U -0.02703 U 0.003142 U -0.01 161 U Ag-1 lOrn -0.002924 U 0.02551 U 0.01 194 U 0.04162 U -0.03209 U Am-241 0U 0U 0U OU OU Ba-133 Ba-140 Bi-212 1.09 0.7841 1.169 Bi-214 0.5473 0.4361 0.5966 Ce-141 Ce-144 0.0575 U -0.04937 U 0.1304 U 0.31381-0.1211 U Co-58 -0.04679 U 0.01556 U -0.0 1637 U 0.06903 0.01853 U Co-60 0.006442 U -0.0303 U -0.008603 U 0.03643 U 0.004287 U Cr-51 Cs-134 -0.1193 U -0.01715 U 0.01254 U -0.04817 U -0.03185 U Cs-136 Cs-137 0.006605 U 0.01284 U 0.6062 0.3207 0.7744 Eu-152 Fe-59 0.007986 U -0.02437 U -0.08189 U 0.125110.01819 U 1-131 K-40 17.991-0.2988 U 4.678 13.75 19.32 Kr-85 Mn-54 0.01054 U 0.01303 U 0.01249 U 0.02123 U -0.002442 U Nb-95 -0.003227 U -0.02898 U -0.04846 U -0.007835 U -0.009415 U Np-239 Pb-212 1.016 0.8508 0.1626 0.5302 0.9564 Pb-214 0.5454 0.6296 0.3914 0.6859 Ra-226 1.929 1.725 1.855 ' 2.75 Ru-103 -0.00346 U 0.01135 U -0.01523 U 0.01076 U 0.02183 U Ru-106 -0.01487 U -0.07528 U -0.1447 U -0.03806 U -0.1281 U Sb-124 0.005622 U 0.001571 U 0U 0.03972 U 0.001813 U Sb-125 Se-75 TI-202 TI-208 0.9734 0.80121 U-235 Zn-65 -0.0728 U 0.2909 0.02041 U -0.1204 U -0.1249 U Zr-95 0.078111-0.01778 U -0.07218 U 0.009364 U 0.0827 SOF 0.05 0.026 0.063 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page IOof52 Rad OOL Soil (pCilg)

Yankee Nuclear Power Station Rowe,'MA Station (Key) 0G002-030 (78) 10G002-032 (80) '- OG003-001 (173) OG003-002 (174)

Sample ID OG002GUFU030. OG02GUFU032 - OGO03GUFUOO1 - G0O03GUFU002 Date Sampled. 7/13/1998 ' {7/13/1998 7/16/1998 ' 7/16/1998 - '

Ac-228 0.9784 i, 0.8797 0.5789 0.652 Ag-108m 0.01861 U 0.02991 U -0.01933 U -0.00i266 U Ag-IlOm 0.01 101 U -0.02546 U -0.03876 U -0.01223 U Am-241 OU OU, OU OU '

Ba-133 Ba-140 Bi-212 0.9544 0.8201 Bi-214 0.5286 0.5154 Ce-141 Ce-144 0.36 0.05735 U -0.1234 U -0.1428 U Co-58 0.01451 U -0.02595 U 0.007362 U 0.01708 U Co-60 -0.02731 U -0.00605 U 0.01169 U -0.01956 U Cr-51 Cs-134 -0.03495 U -0.3455 U -0.028 U -0.01233 U Cs-136 Cs-137 0.1256 0.9722 0.8433 0.6368 Eu-152 Fe-59 0.004697 U 0.01014 U 10.006i37 U 0.04016 U 1-131 K-40 3.653 15.63 18.47 17.76 Kr-85 Mn-54 0.01205 U 0.008075 U -0.01934 U -0.02323 U [ .,

Nb-95 0.002318 U 0.06423 U  : !- 0.02595 U 0.02309 U Np-239 Pb-212 0.7048 ' I ;0.7159 0.4994 0.6199 Pb-214 0.4582 0.5466 0.5465 0.5776 1

Ra-226 1.147 U 2.026 Ru-103 OU, 0.03043 U -0.01689 U -0.01245 U Ru-106 0.03044 U' -0.2351 U -0.07022 U -0.01725 U Sb-124 0.03346 U  ;'; 0.03468 0.01022 U 0.03249 U Sb-125 0.2145 0.09417 U Se-75 11-202 i Tl-208 - - 0.5953 0.373 U-235 Zn-65 0.04705 U 0.04212 U -0.06866 U -0.0903 U Zr-95 -0.04028 U 0.03646 U -0.0 1795 U 0.06555 U SOF 0.01 ' 0.085 .- I ,. 0.069 0.052 U-not detected (value'is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate'chemical not analyzed -' I

in.

Table 4 Page 11 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G003-003 (175) 0G003-004 (176) OGO03-005 (177) [OG003-006 (178)

Sample ID - OGO03GUFU003 OGO03GUFU004 OG003GUFU005 OGO03GUFU006 Date Sampled 7/16/1998 7/16/1998 17/15/1998 7/15/1998 Ac-228 0.718 0.4557 0.668 0.855 Ag-108m -0.01295 U -0.02174 U -0.04664 U -0.002381 U Ag-110mI -0.02864 U 0.005116 U 0.03198 U 0.001054 U Am-241 0U 0U 0U OU Ba-133 Ba-140 Bi-212 0.5809 0.3819 U Bi-214 0.7149 0.8212 0.9011 0.8143 Ce-141 Ce-144 0.04764 U 0.05526 U -0.1811 U 0.05963 U Co-58 0.01108 U -0.01315 U 0.02274 U -0.03649 U Co-60 0.008325 U 0.002442 U -0.03903 U -0.02922 U Cr-51 Cs-134 0.05595 U -0.0402 U -0.4275 U -0.08184 U Cs-136 Cs-137 1.315 0.7748 2.65 0.6012 Eu-152 Fe-59 0.1258 U -0.07595 U 0.06312 U -0.04378 U 1-131 K-40 23.07 14.06 14.47 21.21 Kr-85 Mn-54 -0.008199 U 0.01729 U 0.005818 U -0.03192 U Nb-95 -0.1123 U -0.01814 U -0.03353 U -0.03422 U Np-239 Pb-212 0.6744 0.4147 0.628 0.8639 Pb-214 0.7553 0.4893 0.709 0.8107 Ra-226 2.937 2.257 Ru-103 0.05964 U 0.01108 U 0.002444 U 0.01849 U Ru-106 0.3563 U -0.08597 U 0.7136 -0.1044 U Sb-124 0.03709 U 0.02157 U 0.1188 U 0.104 U Sb-125 Se-75 TI-202 TI-208 0.6755 0.6108 0.7807 U-235 Zn-65 0.01374 U 0.01 138 U -0.1944 U 0.1855 U Zr-95 -0.06 U 0.08073 U -0.0426 U -0.01112 U SOF S 0.107 &

0.063 A.

0.227 I 0.049 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 12of52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe,' MA Station (Key) -0G003-007 (179) OGO03-008 (180) OG003-009 (181) 0G003-010 (182)

Sample ID OG003GUFU007 - *OG003GUFU008 OGO03GUFU009 OGO03GUFU010 Date Sampled ' 7/15il998 - 7/14/1998 7/15/1998 ' 7/15/1998 Ac-228 0.8661 0.5422 0.4127 0.5487 Ag-108m -0.002122 U -0.0006504 U -0.009768 U -0.0052 U Ag-110m 0.04429 U 0.04525 U " '¢ - 0.005783 U 0.01281 U Am-241 OU OU OU OU Ba-133 Ba-140 Bi-212 0.9434 0.5271 U Bi-214 0.7153 0.5114 0.4903 0.5464 Ce-141 Ce-144 -0.1893 U 0.1511 U 0.1843 U 0.04132 U Co-58 -0.04192 U 0.01261 U -0.0101 U 0.01666 U Co-60 0.006019 U 0.03757 U 0.02042 U 0.006057 U Cr-51 Cs-134 -0.03258 U -0.19 U -0.02792 U -0.1731 U Cs-136 Cs-137 0.6582 1.1911 - 1.289 0.2788 Eu-152 1.755 Fe-59 0.03036 U -0.01924 U  : I.OU 0I-0.09137 U 1-131 K-40 16.8 18.28 15.21 20.02 Kr-85 Mn-54 0.005832 U -0.01431 U 0.01657 U -0.02858 U Nb-95 0.01126 U -0.03322 U  !. 10.08065 U 0.027 U Np-239 Pb-212 0.8753 0.6831 0.3655 0.5403 Pb-214 0.68 0.6264 0.6071 0.4929 i.;

Ra-226 3.028 1.792 U Ru-103 0.01351 U -0.03377 U -0.007763 U 0.004622 U C, -0.1528 U Ru-106 0.2065 U -0.2263 U 0.08869 U Sb-124 -0.01263 U -0.01343 U 0.02527 U 0.01738 U Sb-125 Se-75 TI-202 Tl-208 0.4304 0.2991 U-235 Zn-65 -0.07214 U 0.08544 U -0.02062 U 0.1073 U Zr-95 -0.077 U: 0.03721 U 0.04539 U 0.02206 U SOF 0.199 0.097 0.105 0.023 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

J__

Table 4 Page 13 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G003-011 (183). O0G003-012 (184) ogOO3-013 (185) ogOO3-014 (186)

Sample ID OG003GUFU011 j OG003GUFU012 ogOO3gufuO13 ogOO3gufuO14 Date Sampled 7/15/1998 17/15/1998 7/15/1998 7/15/1998 Ac-228 0.9187 0.6005 - 0.5922 0.8472 Ag-108m -0.03365 U 0.001899 U -0.00795 U 0.006785 U Ag-I 10m -0.03426 U -0.01489 U 0.004259 U -0.0205 U Am-241 0U 0U OU OU Ba-133 Ba-140 Bi-212 0.7063 Bi-214 0.6456 0.3942 0.5597 0.4905 Ce- 141 Ce- 144 -0.05472 U -0.01033 U 0.102 U -0.1217 U Co-58 -0.008732 U 0.02392 U -0.0006973 U -0.01523 U Co-60 -0.01091 U 0.005772 U -0.03778 U -0.03023 U Cr-51 Cs-134 -0.02442 U -0.1641 U -0.2546 U -0.0579 U Cs-136 Cs-137 0.7194 0.6587 0.9918 0.7986 Eu-152 Fe-59 -0.06884 U -0.08744 U 0.17171-0.04005 U 1-131 K-40 18.15 16.51 19.79 14.46 Kr-85 Mn-54 -0.04319 U 0.01785 U 0.01856 U 0.008115 U Nb-95 -0.06295 U 0.01226 U 0.09785 -0.002533 U Np-239 Pb-212 0.7265 0.6214 0.605 0.6514 Pb-214 0.6505 0.5681 0.6602 0.4962 Ra-226 2.801 1.66 U 1.204 U Ru-103 0.02976 U -0.01901 U 0.002328 U 0.03718 U Ru-106 -0.05467 U 0.2689 U 0.1623 U 0.02789 U Sb-124 OU OU -0.04368 U -0.04024 U Sb-125 Se-75 Tl-202 Tl-208 0.8085 0.3724 0.5095 U-235 Zn-65 -0.023 U 0.1373 U -0.08357 U -0.06177 U Zr-95 0.02448 U 0.008637 U 0.09851 -0.01008 U SOF 0.059 0.054 0.081 0.065 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 14 of 52 Rad OOL-08 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) IogOO3-015 (187) - -ogOO3-016 (188) OG003-017 (189) . OG003-018 (190)

Sample ID'* ogO03gufuO15 ; ogOO3gufuO16 : OGO03GUFU017 OG003GUFU018 Date Sampled 17/1511998 7/15/1998 - - 7/15/1998 - 7/15/1998 Ac-228 0.9562 0.5735 0.6072 0.6336 Ag-108m' 0.004825 U .. I.. 0.01254 U 0.00! 9038 U i ' -0.001601 U Ag-110m 0.05202 U -0.02989 U .0n (061 'AT 0.001251 U Am-241 OU OU OU OU .

Ba-133 Ba-140 Bi-212 0.9482 0.4723 U 0.4592 U 0.7867 Bi-214 0.4979 0.4652 0.4783 Ce-141 Ce-144 0.2065 U -0.1032 U 0.03346 U 0.1229 U Co-58 -0.01241 U -0.009847 U 0.01727 U -0.04631 U Co-60 -0.000000005221 U 0.01074 U -0.06688 U -0.02046 U Cr-51 Cs-134 -0.02703 U 0.01 193 U 0.03875 U -0.003913 U Cs-136 Cs-137 0.853 0.562 0.43 1.29 Eu-152 Fe-59 0.09856 U -0.0397 U 0.05888 U 0.03884 U 1-131 K-40 17.78 13.6 13.38 16.1 Kr-85 Mn-54 0.0006125 U -0.00478 U -0.006057 U 0.04295 U Nb-95 0.002392 U 0.008781 U -0.06233 U -0.07838 U Np-239 Pb-212 0.8231 - 0.4904 0.751 0.6028 Pb-214 0.5297 0.473 0.5616 0.5304 Ra-226 1.749 2.363 Ru-103 -0.01399 U -0.001481 U 0.00839 U -0.07178 U

-s ----- s I Ru-106 u.uoNY U -0.06266 U OU, -0.04121 U Sb-124 -0.02916 U -0.04396U  ; 0.01783 U 0.05413 U Sb-125 Se-75 Tl-202 Tl-208 0.6075 0.7379 U-235 Zn-65 -0.1044 U -0.1041 U 0.05651 U -0.1383 U Zr-95 0.02192 U 0.001739 U -0.03154 U -0.1851 U SOF  :.- . i 1 0.07 I'. 0.046 0.035 0.105 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

M-Table 4 Page 15 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key)' I G003-019 (191) 0G003-020 (192) 0G003-021 (193) 0G003-022 (194)

Sample ID OGO03GUFU019 OGO03GUFU020 OGO03GUFU021 OGO03GUFU022 Date Sampled 7/14/1998 7/14/1998 7/14/1998 7/14/1998 Ac-228 0.4858 0.5841 Ag-108m 0.002538 U 0.01757 U 0.01 103 U -0.005949 U Ag-110mn 0.04371 U 0.02358 U 0.02646 U 0.01285 U Am-241 0U 0U 0U 0U Ba-133 Ba-140 Bi-212 0.8709 0.5638 U Bi-214 0.3771 Ce-141 Ce-144 -0.09632 U 0.02572 U 0.2186 -0.01018 U Co-58 0.04746 U -0.03255 U 0.01227 U 0.004374 U Co-60 0.01032 U 0.00937 U 0.0151 U 0.03691 U Cr-51 Cs-134 -0.02525 U 0.009821 U 0.065591-0.05309 U Cs-136 Cs-137 0.83 1.589 0.8113 0.8871 Eu-152 Fe-59 0.02355 U 0.0419 U 0.03055 U -0.09646 U I-131 K-40 11.45 12.14 3.627 10.78 Kr-85 Mn-54 -0.01653 U -0.00899 U -0.001715 U -0.02374 U Nb-95 -0.03434 U 0.02528 U 0.04607 U 0.0404 U Np-239 Pb-212 0.4247 0.2802 0.0918 U 0.0854 U Pb-214 0.3426 0.4009 0.1666 0.3496 Ra-226 2.256 Ru-103 0.03715 U -0.03691 U -0.0218 U 0.001994 U Ru-106 -0.1492 U -0.1552 U 0.07834 U 0.05618 U Sb- 124 -0.02844 U 0.03155 U 0U OU Sb-125 Se-75 TI-202 TI-208 0.447 U-235 Zn-65 -0.1096 U -0.09678 U OU -0.09183 U Zr-95 -0.0518 U 0.06359 U 0.06422 U 0.08532 U SOF 0.068 0.13 0.076 0.072 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 16 of 52 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G003-023 (195) OG003-024 (196) 0G003-026 (197) OG003-027 (198)

Sample ID OG003GUFU023- OG03GUFU024: OGO03GUFU026 -I OG03GUFU027.

Date Sampled 7/14/1998 7/14/1998 7/14/1998 I 7/14/1998 Ac-228 0.5592 0.6123 0.5103 I

Ag-108Im -0.00688 U -0.004948 U -0.02664 U -0.01037 U Ag-IlOrn -0.05556 U 0.02455 U -0.02212 U -0.03612 U Am-241 OU 0U 0U OU Ba-133 Ba-140 Bi-212 0.5489 0.5913 U Bi-214 0.2716 0.2106 0.2683 Ce-141 Ce-144 -0.06796 U 0.01227 U 0.02628 U -0.0872 U Co-58 0.05002 U 0.002259 U 0.05245 U -0.006105 U Co-60 0.08805 U -0.01483 U 0.03574 U -0.03743 U Cr-51 Cs-134 -0.1307 U -0.07659 U OU 0.01265 U Cs-136 Cs-137 3.818 0.728 1.892 0.5297 Eu-152 Fe-59 -0.0167 U -0.04226 U -0.06796 U 0.03075 U 1-131 K-40 7.151 10.8 12.86 14.07 Kr-85 Mn-54 0.01598 U 0.001 122 U 0.06849 U -0.02396 U Nb-95 -0.01367 U -0.04434 U 0.04175 U -0.001754 U

.I Np-239 Pb-212 0.1738 U 0.3523 0.5438 0.4882 Pb-214 0.1879 U  : 0.3682 0.5036 0.4096 Ra-226 1.555 Ru-103 -0.1385 U -0.0008006 U -0.02318 U ' -0.004612 U Ru-106 0.01286 U 0.08126 U -, 0.3127 U -0.1289 U Sb-124 OU OU I OU OU:

Sb-125 Se-75 Tl-202 Tl-208 0.7457 0.4475 U-235 Zn-65 -0.03075 U 0.1015 U -0.227 U -0.06009 U Zr-95 0.02225 U -0.03038 U . t 0.03662 U 0.03956 U SOF 0.312 iI.. 0.059 1. 0.155 I 0.043 U-not detected (value is not greater than 2 sigma), UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 17of52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G003-028 (199) 0G003-030 (200) 0G003-031 (201) OG003-032 (202) 'K)

Sample ID OGO03GUFU028 OGO03GUFU030 OGO03GUFU031 OGO03GUFU032 .

Date Sampled 17/14/1998 7/14/1998 7/14/1998 7/14/1998 Ac-228 0.3741 0.5775 Ag-108m -0.02225 U 0.01513 U -0.0188 U 0.001034 U Ag-110m 0.03545 U 0.003195 U 0.01375 U -0.003218 U Am-241 0U OU OU OU Ba-133 Ba-140 Bi-212 0.7104 U 1.1 Bi-214 0.6106 0.2717 0.5089 Ce-141 Ce-144 0.1673 U 0.3199 -0.04424 U -0.2725 U Co-58 0.003606 U 0.04196 U 0.05772 U -0.04679 U Co-60 0.00893 U -0.008604 U 0.03702 U 0.01486 U Cr-51 Cs-134 0.07838 U -0.0198 U -0.3438 U -0.07381 U Cs-136 Cs-137 0.5241 0.6217 1.539 1.256 Eu-152 Fe-59 -0.0973 U 0.1443 10 U -0.01177 U 1-131 K-40 9.027 7.924 7.943 13.611.

Kr-85 Mn-54 -0.02264 U 0.01823 U 0.004535 U 0.0331 U Nb-95 -0.01088 U -0.02262 U -0.1029 U 0.01085 U Np-239 Pb-212 0.1992 0.3663 0.4568 0.4721 Pb-214 0.6907 0.4238 0.2733 0.4774 Ra-226 1.437 Ru- 103 -0.02817 U 0.0217 U 0.0521 U 0.0042 U Ru- 106 -0.05706 U -0.2619 U 0.6011 0.01583 U Sb-124 0.03181 U OU OU 0.03413 U Sb-125 Se-75 TI-202 TI-208 U-235 Zn-65 -0.07179 U -0.02295 U 0.2882 U 0.2202 U Zr-95 0.002549 U -0.005779 U 0.05808 U 0.03426 U SOF I 0.043 l 0.051 a 0.135 a 0.103 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 18 of 52 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G004-003 (240) 2 OG004-005 (242) OG004-007 (244) 0G004-009 (246)

Sample ID OGO04GUFDO03 - OGO04GUFDO05 OGO04GUFDO07 OG004GUFDO09 Date Sampled :j7/14/1998 j'-7/14/1998 .7/14/1998 17/14i1998 -

Ac-228 0.704 -. 0.3894 0.7898 0.5245 Ag-108m 0.0003046 U -0.00006763 U -0.001195 U .0.03354 Ag-110m -0.06239 U -0.006655 U -0.00142 U -0.0233 U Am-241 OU OU OU OU Ba-133 Ba-140 Bi-212 0.9404 0.905 Bi-214 0.3584 0.413 0.5446 0.493 Ce-141 Ce-144 0.1781 U -0.09201 U -0.1456 U -0.009898 U Co-58 0.001704 U 0.0009695 U -0.02696 U -0.02608 U Co-60 -0.03936 U -0.001818 U -0.009629 U 0.004414 U Cr-51 Cs-134 0.03207 U 0.003114 U ,. -0.01034 U -0.03697 U Cs-136 Cs-137 0.2764  : 0.5752 0.1772 0.0224 U Eu-152 Fe-59 -0.06306 U 0.02509 U -'2 1-0.05449 U 0.07093 U 1-131 K-40 14.21 . .- 11.95 16.46 16.08 Kr-85 Mn-54 0.00394 U -0.006432 U 0.01157 U r -0.005467 U Nb-95 0.02239 U 0.006651 U ' : 0.03603 U I0.02778 U Np-239 Pb-212 0.5313 0.318 - 0.6153 0.535 Pb-214 0.375  ; 0.3815 - 0.6078 0.4007 Ra-226 i 1.844 2.16 Ru-103 -0.06331 U -0.01328 U -0.02181 U 0.002186 U Ru-106 0.4437 0.13 U -0.09313 U 0.08159 U Sb-124 0.03893 U ' ' OU ' . ' 0.01975 U OU Sb-125 0.03489 U Se-75 Tl-202 TI-208 0.5423 0.4537 U-235 Zn-65 -0.04213 U -0.07026 U -0.0637 U -0.03431 U Zr-95 -0.02581 U 0.0136 U  : - F 0.008307 U -0.01923 U . ..

SOF 0.029 0.047 f 0.014 0.004 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 19 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key), 0G004-011 (248) OG004-012 (249) O0G004-014 (251) 0G004-015 (252):

Sample ID OGO04GUFDO11 OGO04GUFDO12 OG004GUFDO14 OGO04GUFDO15 Date Sampled 7/14/1998 7/14/1998 7/15/1998 7/15/1998 Ac-228 0.7333 0.8068 0.7089 Ag-108Im 0.005846 U -0.002489 U 0.01226 U 0.02492 U Ag-1 10m -0.02226 U 0.0197 U 0.01734 U -0.02993 U Am-241 OU, OU OU OU Ba-133 Ba-140 Bi-212 0.4104 U 0.5822 0.6471 0.4547 U Bi-214 0.4555 0.4532 0.542 Ce-141 Ce- 144 -0.0693 U -0.04509 U -0.176 U -0.1934 U Co-58 0.02186 U 0.01398 U -0.01781 U -0.04223 U Co-60 -0.01097 U -0.03931 U -0.01674 U -0.01329 U Cr-51 Cs- 134 0.004048 U -0.09419 U -0.04106 U 0.03347 U Cs-136 Cs-137 -0.02185 U 0.1255 0.08239 0.1593 Eu-152 Fe-59 -0.1142 U -0.09121 U 0.1032 U 0.04812 U 1-131 K-40 0.07059 U 16.78 18.87 19.71 Kr-85 Mn-54 0.01385 U -0.001849 U 0.01916 U 0.0229 U Nb-95 0.0234 U -0.05983 U -0.003922 U 0.06995 U Np-239 Pb-212 0.7683 0.7227 0.7885 0.7006 Pb-214 0.5263 0.6025 0.524 0.5949 Ra-226 1.938 3.407 1.338 Ru-103 -0.0117 U -0.02752 U -0.03383 U -0.0469 U Ru-106 0.00000004029 U -0.08747 U 0.1224 U -0.06613 U Sb-124 0.03587 U -0.01332 U -0.08173 U OU Sb-125 Se-75 TI-202 TI-208 0.6319 0.5714 0.71 U-235 Zn-65 0.01305 U -0.04465 U 0.073 U -0.0846 U Zr-95 -0.03869 U -0.02322 U 0.06462 U 0.0736 U SOF I I 0.01 0.007 I 0.013 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 20 of 52 Rad OOL-08 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G004-016 (253) OG004-017 (254)-; OG004-018 (255) OGo04-019 (256)

Sample ID OG004GUFDO16 - OGO04GUFDO17 OGO04GUFDO18 jOGO04GUFDO19 Date Sampled 7/15/1998

• 7/15/1998 7/15/1998 7/15/1998 -

Ac-228 0.5801 0.9277 1.095 0.8281 Ag-108m -0.003576 U -0.006096 U -0.01534 U 0.001944 U Ag-1 10m 0.04713 U 0.0075 U 0.0223 U 0.01691 U AIm-241 0U 0U OU' OU Ba-133 Ba-140 Bi-212 0.8283 1.058 Bi-214  : 0.5975 0.5883 0.6258 Ce-141 Ce-144 -0.05134 U -0.003556 U -0.1026 U 0.09215 U Co-58 0.01287 U - - 0.003909 U -0.01361 U 0.02276 U Co-60 0.01291 U -0.01141 U -0.01998 U -0.02058 U Cr-51 Cs-134 0.006498 U -0.06196 U 0.07388 U -0.09447 U Cs-136 Cs-137 0.443 - 0.1028 1-0.006857 U -0.0101 1 U Eu-152 0.01372 U Fe-59 -0.07052 U 0.06071 U 1-0.07143 U 0.01914 U 1-131 K-40 18.08 21.37 23.59 20.58 Kr-85 Mn-54 -0.02263 U 0.004554 U -0.002903 U -0.004484 U Nb-95 -0.01957 U 0.1524 0.04426 U 0.02157 U Np-239 Pb-212 0.3521 0.9121 1.035 0.8383 Pb-214 0.4979 0.6305 0.5498 0.6368 Ra-226 1.332 U 1.472 U 3.086 Ru-103 -0.07413 U 0.02572 U 0.001847 U -0.005822 U Ru-106 0.2062 U 0.1309 U 0.2631 U 0.1696 U Sb-124 -0.002714 U OU -0.04159 U 0.01012 U Sb-125 0.01175 U Se-75 TI-202 TI-208 0.8388 0.7461 0.8224 U-235 Zn-65 -0.129 U -0.1649 U -0.02051 U 0.1034 U Zr-95 -0.004246 U 0.05948 U  :.;. 0.08525 0.03487 U i,,; '

SOF 0.036. ______________ 0.008 ,._______________

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

a-Table 4 Page 21 of 52 Rad OOL-08 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G004-020 (257) 0G004-022 (258) 10G04-023 (259) 0G004-025 (260)

Sample ID OGO04GUFDO20 OGO04GUFDO22 OGO04GUFDO23 OGO04GUFDO25 Date Sampled 7/15/1998  : 7/15/1998 7/15/1998 7/15/1998 Ac-228 0.8889 1.016 1.102 0.6648 Ag-108m 0.01451 U 0.009807 U -0.005577 U -0.02587 U Ag-1 10ml 0.01155 U 0.0079 U -0.0468 U 0.004637 U Am-241 0U 0U OU 0U Ba-133 0.1862 U Ba-140 Bi-212 1.327 1.009 1.068 0.852 Bi-214 0.4908 0.5685 0.6615 0.4021 Ce-141 Ce-144 -0.006109 U -0.3203 U 0.001309 U -0.06649 U Co-58 -0.01487 U -0.05329 U -0.04138 U -0.02684 U Co-60 0.01559 U 0.006583 U -0.04971 U -0.006108 U Cr-51 Cs-134 0.01326 U -0.03968 U -0.2372 U 0.03017 U Cs-136 Cs-137 0.1232 0.098561-0.01706 U 0.01306 U Eu-152 Fe-59 0.00749 U -0.08235 U -0.01013 U -0.01957 U 1-131 K-40 19.44 23.75 22.23 18.47 Kr-85 Mn-54 0.02705 U -0.006577 U -0.005732 U 0.01 178 U Nb-95 0.01 168 U -0.04649 U -0.03682 U 0.04318 U Np-239 -20.17 U Pb-212 0.8786 1.007 1.073 0.7575 Pb-214 0.5801 0.6465 0.6913 0.5579 Ra-226 2.44 1.281 U 1.772 2.212 Ru-103 0.02151 U 0.013 U -0.02817 U -0.01359 U Ru-106 0.1611 U -0.02642 U -0.08778 U -0.08894 U Sb-124 0.01598 U OU 0.001878 U 0.05489 Sb-125 Se-75 TI-202 TI-208 0.7389 0.7581 0.759 0.714 U-235 Zn-65 0.0131 U -0.0156 U -0.03021 U -0.07466 U Zr-95 0.05904 U 0.0837 U -0.01099 U 0.05224 U SOF 0.01 0.008 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 22 of 52 Rad OOL-08 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA:

Station (Key) 0G004-026 (261) TOGo04-027 (262)- OG004-028 (263).- 0GO04-030 (264)

Sample ID i, OGO04GUFDO26 OGOO4GUFDO27 - OGO04GUFDO28 OG004GUFDO30 Date Sampled 17/16/1998 7/16/1998 7/16/1998 7/16/1998 - :

Ac-228  :; 0.7541 0.7732 ,i 0.9568 0.8029 Ag-108m 0.01 142 U 0.01587 U -0.002813 U -0.0142 U Ag-1 10m 0.00168 U -0.00729 U -0.0003878 U 0.02676 U Am-241 0.1189 U OU:, OU OU Ba-133 Ba-140 Bi-212 0.8018 0.9381 0.7623 0.9716 Bi-214 0.4515 0.5276 0.5632 0.6428 Ce-141 Ce-144 -0.08157 U -0.1355 U -0.2542 U -0.1283 U Co-58 -0.002131 U -0.04772 U 0.0102 U 0.001051 U Co-60 -0.01159 U OU. OU. -0.004835 U Cr-51 Cs-134 0.002189 U -0.01108 U 0.004491 U 0.03174 U Cs-136 Cs-137 0.164510.007682 U 0.03284 U 0.04668 U Eu-152 Fe-59 0.001465 U -0.05285 U OU -0.0584 U 1-131 K-40 24.99 16.1 l . .

21.95 21.02 Kr-85 Mn-54 0.01299 U -0.01761 U  ; -0.02282 U -0.01796 U Nb-95 -0.01405 U 0.0526410.03065 U 0.04079 U Np-239 Pb-212 0.7217 0.7961 0.9064 0.988 Pb-214 0.5237 0.4578 0.5712 0.6344 Ra-226 1.839 0.8299 U 1.887 2.992 Ru-103 0.008136 U 0.001866 U 0.002694 U -0.0175 U Ru-106 -0.06771 U -0.2612 U 0.1238 U 0.03196 U Sb-124 -0.02906 U -0.02448 U 0.01704 U OU Sb-125 Se-75 Tl-202 Tl-208 0.6374 0.7688 0.8836 0.9103 U-235 Zn-65 -0.09984 U 0.02115 U 0.06165 U -0.009046 U Zr-95 0.008619 U 0.03806 U 0.07572 0.01681 U SOF 0.013 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 23 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) ogOO4-031 (265) 0G004-032 (266) 0G004-004 (241) O0G004-006 (243)'

Sample ID ogO04gufdO31 OG004GUFDO32 OGO04GUFU004. OGO04GUFU006 Date Sampled. 7/16/1998 . 7/16/1998 7/14/1998  ;. 7/14/1998 .

Ac-228 0 U 1.003 0.9044 - 0.4512 0.39081 Ag-108m 0.01301 U 0.02313 -0.01257 U 0.04359 Ag-110m 0.01751 U 0.01 173 U 0.01963 U -0.0006069 U Am-241 OU 0U OU OU Ba-133 Ba-140 Bi-212 0.4347 U 0.9064 0.4338 U Bi-214 0.4744 0.4241 Ce-141 Ce-144 0.04891 U 0.1053 U 0.3347 -0.06129 U Co-58 0.003449 U 0.02716 U -0.05868 U -0.004373 U Co-60 -0.003027 U 0.02181 U 0.02261 U 0.01307 U Cr-51 Cs-134 -0.1352 U -0.135 U -0.008676 U 0.01 128 U Cs- 136 Cs-137 0.01442 U 0.03988 1.279 1.813 Eu-152 Fe-59 0.04956 U 0.0915 U -0.1343 U -0.131 U 1-131 K-40 22.56 19.58 10.67 11.19 Kr-85 Mn-54 0.01584 U 0.01 149 U 0.03176 U -0.04501 U 'J~~~

Nb-95 0.04695 U 0.03603 U -0.008956 U -0.03932 U Np-239 Pb-212 1.073 0.7959 0.3114 0.2875 Pb-214 0.6948 0.5201 0.3288 0.3785 Ra-226 4.05 2.295 2.201 U 2.043 Ru-103 -0.03756 U -0.01404 U -0.03308 U -0.08513 U Ru-106 0.2608 U -0.1125 U -0.09189 U -0.1592 U Sb-124 -0.04155 U -0.01231 U -0.01473 U 0.01268 U Sb-125 -0.1069 U Se-75 TI-202 TI-208 0.8694 0.7399 U-235 Zn-65 -0.08537 U 0.07369 U -0.2375 U -0.08722 U Zr-95 0.06081 U -0.01763 U -0.07428 U 0.01896 U SOF 0.006 0.104 0.153 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 24 of 52 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G004-008 (245)-- OG004-010 (247) 0G004-013 (250) O0G005-001 (271)

Sample ID OG0O04GUFU008 OGO04GUFUO1I OGO04GUFU013 OGO05GUFDO01 Date Sampled -7/14/1998 7/14i1998 17/15/1998 . 7/27/1998 Ac-228 0.6754 0.6734 0.5071 0.649 Ag-108m -0.01598 U 0.01582 U -0.02494 U -0.01517UU Ag-1 10m -0.02656 U 0.01862 U -0.01682 U 0.006921 U Am-241 OU 0U' OU OU Ba-133 Ba-140 2.772 U  :

Bi-212 0.9742 0.4481 Bi-214 0.5547 0.438 0.3673 0.3945 Ce-141 Ce-144 0.1029 U OU .. " I -0.1218 U 0.142 U Co-58 -0.02286 U -0.02333 U 0.005732 U 0.01388 U Co-60 -0.06476 U -0.0001465 U 0.006597 U OU Cr-51 Cs-134 -0.015 U -0.1994 U 1-0.1237 U -0.0924 U Cs-136 Cs-137 0.1175 0.1199 0.579 0.3715 Eu-152 Fe-59 0.04478 U 0.05197 U 0.0419 U -0.0446 U 1-131 K-40 12.01 16.08 12.64 17.8 Kr-85 Mn-54 0.03044 U 0.008334 U 0.01568 U -0.002026 U Nb-95 -0.06624 U -0.01604 U -0.02063 U 0.007598 U Np-239 Pb-212 0.5578 0.6762 0.4791 0.8355 Pb-214 - 0.5802 0.454 0.3807 0.4335 Ra-226 2.951 2.174 -1.43 Ru-103 0.03817 U -0.01586 U 0.0145 U I' 0.01037 U Ru-106 -0.04435 U 0.101 1 U .04 0.09023 U -0.3175 U Sb-124 0.007609 U 0.01949 U -0.03453 U 0.001544 U Sb-125 -0.07849 U Se-75 TI-202 TI-208 ';  :-' 0.4463 1 0.7301 U-235 Zn-65 0.04465 U 0.04233 U -0.09648 U  : -0.07661 U Zr-95 0.019 U 0.02335 U -0.03289 U 0.01043 U SOF 0.01 .!t ;f 0.01 0.047 0.03 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

a-Table 4 Page 25 of 52 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OG005-002 (272) OGO05-003 (273) OG005-004 (274) OG005-014 (283)

Sample ID OGO05GUFDO02 OGO05GUFDO03 OGOO5GUFDO04 OGO05GUFDO14 Date Sampled 7/27/1998 7/27/1998 7/27/1998 7/28/1998 Ac-228 0.966 0.8579 1.051 1.135 Ag-108m -0.02284 U 0.009041 U 0.01933 U 0.03236 U Ag-I 10m -0.01654 U -0.0144 U 0.04502 U -0.001595 U Am-241 0U OU OU 0U Ba-133 Ba-140 Bi-212 0.6994 0.6179 1.455 0.6337 Bi-214 0.5606 0.593 0.7394 Ce-141 0.0618 U Ce-144 -0.0009649 U -0.03701 U 0.1387 U -0.1243 U Co-58 -0.01096 U 0.003107 U -0.002418 U 0.01038 U Co-60 0.0389 U 0.008093 U 0.02084 U 0.01285 U Cr-SI Cs-134 0.02435 U -0.05761 U -0.1413 U 0.04315 U Cs-136 Cs-137 0.2584 0.4998 0.2447 0.08172 Eu-152 Fe-59 0.01866 U -0.1223 U -0.0549 U -0.02491 U 1-131 K-40 19.09 21.89 21.63 27.01 Kr-85 Mn-54 -0.008137 U 0.00107 U -0.0103 U -0.00812 U Nb-95 -0.006272 U -0.09467 U -0.003299 U -0.01154 U Np-239 Pb-212 0.9226 0.8984 1.288 1.067 Pb-214 0.5284 0.5294 0.6037 0.6659 Ra-226 2.469 3.258 2.222 Ru-103 0.01679 U -0.008109 U 0.03416 U -0.004731 U Ru- 106 0.1923 U 0.1654 U 0.07552 U -0.02613 U Sb-124 0.01696 U 0.01303 U 0.04722 U -0.05778 U Sb-125 Se-75 Tl-202 Tl-208 0.6898 0.7043 1.219 0.7668 U-235 Zn-65 -0.1 131 U 0.04985 U 0.06116 U 0.03089 U Zr-95 0.01697 U -0.02078 U -0.0107 U 0.06436 U SOF 0.021 0.041 0.02 0.007 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 26 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G005-015 (284) O0G005-016 (285) 0G005-018 (286); OGO05-019 (287)

Sample ID ^ G0O05GUFDO15 OGO05GUFDO16 OGO05GUFDO18 OGO05GUFDO19 Date Sampled J7/28/1998 7/29/1998 7/28/1998  ; 7129/1998 Ac-228 0.9969 0.8654 0.9099 0.9516 Ag-108m -0.01634 U -0.002967 U 0.004351 U 0.002346 U.

Ag-110m -0.002659 U 0.008715 U -0.01315 U 0.01401 U Am-241 0U OU. OU OU Ba-133 Ba-140 2.349 U Bi-212 0.6453 U 0.509 U 0.4885 U 0.9203 Bi-214 0.7334 0.6459 0.3907 0.5462 Ce-141 Ce-144 -0.09725 U -0.1413 U 0.3701 U 0.1919 U Co-58 0.02936 U -0.05741 U -0.01656 U 0.01436 U Co-60 0.03974 U 0.124 0.007428 U 0.04464 U Cr-51 Cs-134 -0.07164 U 0.058291-0.1601 U 0.08895 U Cs-136 Cs-137 0.2581 0.7595  ; 0.2278 0.3449 Eu-152 0.06003 U Fe-59 0.01336 U -0.1454 U -0.05419 U 0.1391 U 1-131 K-40 24.62 26.13 20.48 23.27 Kr-85 Mn-54 0.01005 U 0.0119: 3U 0.01494 U -0.01188 U Nb-95 0.06339 U -0.075EB3 U 0.001117 U 0.02708 U Np-239 Pb-212 1.173 0.9896 0.8858 1.005 Pb-214 0.7572 0.7451 0.5759 0.6155 Ra-226 3.568 3.569 4.721 Ru-103 -0.0249 U 0.08343 -0.03131 U -0.03902 U Ru-106 -0.1672 U -0.0059942 U 0.109 U -0.3852 U Sb-124 -0.0585 U 0.0246; 42U -0.01279 U -0.01414 U Sb-125 0.0666 30U i Se-75 TI-202 Tl-208 0.8884 ;1.027 0.8927 0.8634 U-235 Zn-65 -0.04713 U -0.04918 U - 0.05842 U -0.07488 U Zr-95 0.03865 U -0.03476 U 0.1105 0.0401 U SOF 0.021 0.096 0.019 0.028 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

a-Table 4 Page 27 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G005-020 (288) 0G005-021 (289) 0G005-023 (291) 0G005-024 (292)

Sample ID OG005GUFD020 OG05GUFD021 OG005GUFD023 OG005GUFD024 Date Sampled 7/29/1998 7/29/1998 7/29/1998 7/29/1998 Ac-228 1.081 1.041 0.8356 0.8101 Ag-108m -0.003753 U 0.004319 U -0.01742 U -0.0 1594 U Ag-110m -0.05172 U -0.02283 U 0.02425 U 0.004187 U Am-241 0U 0U OU OU Ba-133 Ba-140 Bi-212 1.246 0.8118 0.6815 U 0.9573 Bi-214 0.4568 0.5908 0.5589 0.4598 Ce-141 Ce-144 -0.1902 U 0.06779 U -0.302 U 0.1587 U Co-58 -0.01312 U -0.003756 U -0.03234 U -0.04686 U Co-60 -0.00108 U 0.04153 U -0.006379 U 0.004812 U Cr-51 Cs-134 0.0467 U -0.05375 U -0.03306 U 0.02856 U Cs-136 Cs-137 0.08733 0.1898 4.225 0.2445 Eu-152 Fe-59 -0.0694 U 0.0354 U 0.07493 U -0.07249 U 1-131 K-40 22.91 21.33 13.76 17.59 Kr-85 Mn-54 -0.003337 U -0.01798 U 0.01079 U 0.01722 U '-I Nb-95 0.04874 U -0.004815 U -0.003442 U 0.007479 U Np-239 Pb-212 0.9731 1.018 0.6905 0.8421 Pb-214 0.5732 0.6277 0.5904 0.5601 Ra-226 1.978 2.105 3.927 Ru-103 0.04567 U 0.001781 U -0.06164 U -0.01471 U Ru-106 -0.04882 U -0.09977 U -0.0861 U 0.2014 U Sb-124 0.03128 U 0.03479 U 0.009457 U 0.004069 U Sb-125 Se-75 TI-202 TI-208 1.037 0.9469 0.5875 0.896 U-235 Zn-65 0.1058 U 0.04103 U 0.01316 U -0.0937 U Zr-95 0.0562 U 0.007266 U 0.02066 U -0.06762 U SOF 0.007 0.016 0.345 0.02

'J-o U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 28 of 52 Rad OL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station'(Key) O0G005-025 (293) . OG005-026 (294) OG005-027 (295) O0G005-028 (296)

Sample ID ' OG0O05GUFDO25 OGO05GUFDO26 0G005GUFD027 - OGO05GUFDO28 Date Sampled' 7/29/1998 j7/29/1998 7/30/1998 J7/30/1998 Ac-228 0.6063 0.5739 0.9746 0.5626 Ag-108m 1. ,

-0.007308 U - ' ' ' 0.01774 U -0.001516 U -0.0 1072 U Ag-1 10m 0.02596 U -0.008727 U 0.006538 U -0.01657 U Am-241 OU OU ' OU OU Ba-133 Ba-140 0.8869 U Bi-212 0.5333 U ' 0.7695 Bi-214' 0.4307 , . 0.5563 0.4329 0.5088 Ce-141 Ce-144 -0.1257 U -0.1128 U -0.02861 U 0.06151 U Co-58 -0.04438 U -0.009098 U -0.01 101 U 0.001523 U Co-60 -0.009982 U 0.005507 U 0.01006 U -0.004947 U Cr-51 Cs-134 -0.0115 U -0.0711 U -0.1983 U -0.08436 U Cs-136 Cs-137 ' 0.3401 0.7693 0.2192 0.5091 Eu-152 Fe-59 -0.01465 U 0.03224 U 0.1058 U -0.03238 U 1-131 K-40 9.83 10.79 21.81 11.61 Kr-85 Mn-54 -0.004547 U -0.004598 U 0.01345 U -0.02282 U Nb-95 -0.03941 U -0.05737 U -0.06139 U 0.01622 U Np-239 Pb-212

• 0.6524 0.5389 0.8786 0.5654 Pb-214 0.5167 0.5366 0.5441 0.5357 Ra-226 1.359 U 1.373 U -I 1.623 3.618 Ru-103 0.05044 U 0.004776 U 0.004888 U 0.002178 U Ru-106 -0.1524 U -0.1009 U 0.3382 -0.06033 U Sb-124 OU' OU -0.02082 U 0.06052 U Sb-125 Se-75 TI-202 Tl-208 0.5812 0.6676 0.6966 0.5847 U-235 Zn-65 0.001916 U -0.08642 U -0.1625 U -0.04717 U Zr-95 0.03555 U 0.02677 U -0.04396 U 0.09368 U SOF 0.028 0.063 0.023 0.042 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

a-Table 4 Page 29 of 52 Rad OOL-08 -- Soil (pCilg)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G005-031 (299) OG005-032 (300) 0G005-029 (297) OG005-030 (298)

Sample ID OCOOSGUFDO31 OGOOSGUFDO32 OGO0SGUFU029 OGOO5GUFU030 Date Sampled 9/14/1998 7/29/1998 7/30/1998  ; 7/30/1998 Ac-228 0.8815 0.8251 0.5784 0.5302 Ag-108m -0.007285 U -0.0243 U -0.004737 U 0.01428 U Ag-110mI 0.01465 U -0.007813 U 0.05937 U -0.01706 U Am-241 0U 0U OU 0U Ba-133 Ba-140 Bi-212 1.311 1.077 Bi-214 0.504 0.4368 0.3895 0.5224 Ce-141 Ce-144 0.3028 -0.127 U 0.1066 U -0.09586 U Co-58 0.008447 U -0.01434 U 0.03318 U 0.03665 U Co-60 -0.003344 U 0.0182 U 0.01244 U 0.03468 U Cr-SI Cs-134 0.02032 U -0.1082 U -0.1049 U 0.029 U Cs-136 2.793 Cs-137 0.4153 0.1761 0.6994 0.4659 Eu-152 Fe-59 -0.02722 U 0.0914 U 0.03604 U 0.1151 U 1-131 K-40 18.75 17.83 14.96 9.3671 Kr-85 Mn-54 -0.005492 U -0.04314 U 0.007072 U 0.004132 U Nb-95 0.0309 U 0.0421 U 0.03015 U 0.01861 U Np-239 Pb-212 0.8968 0.7855 0.3567 0.6608 Pb-214 0.5303 0.4884 0.503 0.5906 Ra-226 1.194 1.449 U 1.675 Ru-103 -0.02169 U -0.009724 U -0.0698 U 0.02405 U Ru-106 -0.1341 U 0.06671 U 0.02781 U 0.09065 U Sb- 124 0.002687 U 0.01623 U 0.09738 U OU Sb-125 0.04765 U Se-75 TI-202 TI-208 0.8321 0.6706 0.3135 0.3531 U-235 Zn-65 -0.164 U -0.06937 U -0.1208 U -0.09483 U Zr-95 -0.0 1877 U 0.07898 U 0.122 0.0254 U SOF 0.034 0.014 0.057 0.038 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 30 of 52 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G007-023 (151) 0G007-024 (152) O0G007-025 (153) OGG007-026 (154)

Sample ID OG607GAFDO23 OG007GAFD024 G0O07GAFD025 OGO07GAFDO26 Date Sampled 9/16/1998 9/16/1998  : 9/1611998 I9/16/1998 Ac-228 0.629 0.8165 0.7368 0.6635 Ag-108m 0.002991 U -0.01344 U -0.008002 U -0.0007827 U ,

Ag-110m -0.00228 U -0.002824 U -0.01681 U 0.02906 U Am-241 OU; 0U OU OU I Ba-133 Ba-140 Bi-212 1.061

• 0.4583 1.059 0.9663 Bi-214 0.52 0.4047 0.4888 0.4037 Ce-141 Ce-144 0.111 U 0.1481 U 0.01411 U -0.1001 U Co-58 0.01511 U -0.02149 U 0.004568 U -0.02659 U Co-60 -0.02106 U 0.009739 U OU -0.01323 U Cr-51 Cs-134 -0.09999 U -0.07092 U 0.02227 U -0.03344 U Cs-136 Cs-137 -0.003324 U 0.005293 U 0.0611 0.09093 Eu-152 Fe-59 -0.04974 U -0.03221 U -0.008485 U 0.04389 U 1-131 K-40 17.79 18.11 17.93 18.89 Kr-85 Mn-54 -0.04079 U -0.01212 U 0.0005563 U 0.01119 U Nb-95 0.07898 0.01238 U -0.0214 U 0.003001 U Np-239 51.03 U Pb-212 0.7495 0.8101 0.6556 0.7739 Pb-214 0.4646 0.5573 0.527 0.5392 Ra-226 0.9473 U 2.345 2.265 1.237 Ru-103 0.003788 U -0.02664 U -0.01705 U 0.007818 U Ru-106 0.09572 U -0.009485 U -0.1635 U 0.03866 U Sb-124 -0.001 174 U 0.003489 U -0.04705 U 0.02212 U Sb-125 Se-75 Tl-202 Tl-208 0.6211 0.6602 0.7398 0.7109 U-235 Zn-65 0.1615 U -0.02678 U 0.06398 U 1-0.1372 U Zr-95 0.01514 U 0.01329 U 0.07095 -0.01805 U SOF  !:!0 0.005 0.007 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

U-Table 4 Page 31 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G007-027 (155) OG008-014 (220) 0G008-015 (221) OGO08-016 (222)

Sample ID OGO07GAFDO27 OG0O08GUFD014 OG008GUFD015 0G008GUFD016 Date Sampled 9/16/1998 10/27/1998 10/27/1998 10/27/1998 Ac-228 0.6809 0.7815 0.9652 0.742 Ag-108m 0.009745 U -0.02273 U -0.02433 U -0.01335 U Ag-I 10m 0.01521 U 0.01792 U 0.004141 U -0.006215 U Am-241 OU OU OU OU Ba-133 Ba-140 Bi-212 0.739 1.146 0.8711 Bi-214 0.3279 0.5476 0.4781 0.4814 Ce-141 Ce-144 -0.1152 U -0.06784 U -0.04006 U -0.132 U Co-58 0.01015 U -0.008211 U 0.002603 U -0.01954 U Co-60 -0.004602 U -0.00567 U 0.03401 U 0.03678 U Cr-51 Cs-134 0.01648 U 0.00567 U -0.04269 U -0.04043 U Cs-136 Cs-137 -0.006325 U 0.04847 0.2897 0.09019 Eu-152 0.85 Fe-59 0.03487 U 0.001594 U -0.03868 U -0.0129 U 1-131 K-40 17.44 19.46 19.23 17.65 Kr-85

'-I Mn-54 -0.01921 U 0.01 14 U 0.007824 U 0.01517 U Nb-95 0.02795 U -0.02745 U -0.0001066 U 0.005621 U Np-239 -5.602 U Pb-212 0.7139 0.8375 0.8734 0.6957 Pb-214 0.4875 0.5632 0.4752 0.4803 Ra-226 1.72 1.311 1.871 1.046 U Ru-103 -0.001695 U 0.01461 U -0.01235 U 0.0004507 U Ru-106 0.5169 -0.02252 U 0.1395 U -0.2345 U Sb-124 0.01071 U 0.01752 U 0.0274 U -0.03966 U Sb-125 -0.1376 U Se-75 Tl-202 TI-208 0.7582 0.7808 U-235 Zn-65 -0.01261 U -0.01895 U -0.09496 U -0.03086 U Zr-95 0.006275 U -0.002593 U 0.06355 U 0.006879 U SOF 0.008 0.004 0.024 0.078 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 32 of 52 Rad OOL-08 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 1G008-017 (223) 0G008-018 (224) OG008-019 (225) 0 G008-020 (226)

Sample ID - OG008GUFD017 OGO08GUFDO18 OGO08GUFDO19 OGO08GUFDO20 Date Sampled 10/28/1998 - 10/28/1998 10/28/1998 10/28/1998 - .

Ac-228 1.039 0.8784 1.305 0.9346 Ag-108m -0.003508 U -0.009085 U ~. , 0.03014 U 0.0179 U Ag-1 10m 0.01 155 U 0.01421 U 0.01629 U -0.01731 U Am-241 0U OU 0U OU.

Ba-133 Ba-140 Bi-212 0.5264 U 1.349 1.007 Bi-214 0.5819 0.4966 0.6034 0.5122 Ce-141 0.06352 U Ce-144 -0.1273 U 0.1104 U 0.01318 U -0.1534 U Co-58 -0.03147 U -0.008054 U -0.0174 U 0.02661 U Co-60 0.006839 U 0.006959 U -0.01472 U 0.04209 U Cr-51 .

Cs-134 -0.2785 U -0.1041 U 0.0765 U -0.02268 U Cs-136 Cs-137 -0.00719 U 0.12951-0.01522 U 0.06526 Eu-152 Fe-59 -0.04024 U -0.0632 U -0.01823 U -0.04047 U 1-131 K-40 23.52 - 18.47 19.76 19.36 Kr-85 Mn-54 -0.003692 U 0.02438 U 0.02084 U 0.01266 U Nb-95 0.007418 U -0.001263 U -0.002669 U -0.02006 U Np-239 Pb-212 1.085 - 0.9428 1.239 0.8132 Pb-214 0.5804 0.6214 0.7118 0.6288 Ra-226 2.43 2.132 1.513 1.114 Ru-103 0.004649 U 0.00853 U 0.02007 U 0.01438 U Ru-106 0.2205 U 0.1122 U -0.1909 U -0.3436 U Sb-124 OU -0.01577 U -0.002382 U -0.004535 U Sb-125 ,

Se-75 TI-202 TI-208 0.8946  : I- 0.9097 1.27 U-235 Zn-65 0.001513 U -0.05654 U 0. 01

-0.02347 U -0.1161 U Zr-95 -0.001295 U -0.01165 U 0.05842 U -0.02651 U

.,  : 0.005 SOF 0.011 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

a-Table 4 Page 33 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OG008-022 (227) G0G008-023 (228) 0G008-024 (229) 0G008-025 (230)

Sample ID OGO08GUFDO22- OGO08GUFDO23 OGO08GUFDO24 OG008GUFDO25 Date Sampled 10/29/1998  : 10/29/1998 10/29/1998 110/29/1998 Ac-228 0.8213 0.8046 0.8159 0.9013 Ag-108m -0.01961 U -0.002402 U 0.002561 U -0.00404 U Ag-I 10ml -0.0126 U 0.01694 U -0.01413 U -0.01049 U Am-241 OU 0U 0U OU Ba-133 Ba-140 Bi-212 1.264 0.6463 0.83 0.8162 Bi-214 0.5048 0.436 0.5535 0.399 Ce-141 Ce-144 -0.1 155 U 0.07336 U -0.1274 U -0.1468 U Co-58 -0.01842 U -0.0432 U 0.006693 U 0.0029 U Co-60 -0.01763 U -0.04047 U -0.02261 U 0.01621 U Cr-51 Cs-134 0.007954 U -0.2505 U -0.01831 U 0.03291 Cs-136 Cs-137 0.08263 0.06043 0.04576 0.0715 Eu-152 0.2014 U Fe-59 -0.04657 U 0.02626 U 0.01643 U -0.02142 U 1-131 0.4278 U K-40 20.38 17.43 20.02 17.24 Kr-85 8.705 Mn-54 -0.02391 U 0.03103 U 0.01415 U 0.01377 U Nb-95 0.02277 U -0.006331 U 0.01083 U 0.01083 U Np-239 Pb-212 0.8972 0.8526 0.7928 0.8366 Pb-214 0.6135 0.4564 0.4849 0.519 Ra-226 1.313 1.623 1.055 U 0.8553 U Ru-103 -0.0004093 U -0.01587 U 0.01887 U 0.0126 U Ru-106 0.06098 U -0.1944 U 0.1932 U 0.05158 U Sb-124 0.01141 U 0.008738 U 0.01825 U 0.01 19 U Sb-125 -0.1125 U Se-75 Tl-202 Tl-208 0.8077 0.7724 0.723 0.7819 U-235 Zn-65 -0.08504 U -0.09408 U 0.01458 U 0.02112 U Zr-95 0.02711 U -0.03313 U -0.0 1889 U 0.05655 U SOF 0.007 0.005 0.004 0.011 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 34 of 52 Rad OOL-08 -- Soil (pjCUg)

Yankee Nuclear Power Station Rowe, MA Station (Key)I G008-026 (231) - OG008-027 (232) OG008-028 (233) 0G008-029 (234)-

Sample ID': OG0O08GUFDO26 OG008GUFDO27 OGO08GUFDO28 OGO08GUFDO29 Date Sampled 10/29/1998 10/29/1998 10/29/1998 10/29/1998 Ac-228 - 0.7795 0.7778 0.8677 0.9293 Ag-108m 0.01906 U 0.03394 -0.008358 U -0.001615 U Ag-110m 0.02395 U 0.004844 U 0.02477 U 0.01273 U Am-241 oU, 0U OU OU~

Ba-133 Ba-140 Bi-212 0.5583 1.038 0.7629 1.027 Bi-214 0.4586 0.5539 - 0.4926 0.4283 Ce-141 Ce-144 0.1011 U 0.1491 U 0.006307 U 0.1061 U Co-58 -0.004964 U 0.01178 U -0.005602 U 0.01238 U Co-60 0.0005276 U 0.04019 0.03127 U 0.01737 U Cr-51 Cs-134 0.01249 U -0.0121 U -0.07491 U -0.1245 U Cs-136 Cs-137 0.1247 0.0854 0.1383 0.07502 Eu-152 Fe-59 -0.03048 U -0.02515 U -0.06973 U 1-0.0112 U 1-131 K-40 20.49 16.97 19.26 17.54 Kr-85 Mn-54 0.005226 U 0.002505 U 0.0167 U 0.03417 U Nb-95 0.006428 U 0.01045 U 0.02196 U 0.02852 U Np-239 Pb-212 0.8494 0.8284 0.8364 0.6103 Pb-214 0.4982 0.4604 0.4608 0.4364 Ra-226 1.09 U- 1.311 '1.08 Ru-103 -0.01136U 0.01125 U 0.0142 U 0.01358 U Ru-106 -0.06385 U 0.0579 U 0.2095 U 0.392 Sb-124 -0.01872 U -0.01515 U 0.0005696 U -0.00659 U Sb-125 Se-75 Tl-202 TI-208 0.6942 0.7435 I 0.5898 0.6772 U-235 Zn-65 0.03293 U -0.08053 U -n07407 11 -0.02533 U Zr-95 -0.01 145 U 0.03817 U -0.03405 U -0.03804 U SOF 0.01 0.019 0.011 0.012 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 35 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA K>

Station (Key) O1G008-030 (235) 0G009-010 (918) OG009-011 (919) 0G009-031 (932)

Sample ID OGO08GUFDO30 OG009GUFDO10 OGO09GUFDO11 OGO09GUFDO31 Date Sampled 110/29/1998 7/30/1998 8/3/1998 8/3/1998 Ac-228 0.8891 0.833 0.543 1.03 Ag-108m 0.01442 U -0.0131 U 0.0113 U -0.00138 U Ag-110m -0.01804 U -0.0234 U -0.00559 U -0.00596 U Am-241 OU' OU 0U OU Ba-133 Ba-140 Bi-212 0.7081 0.468 U 0.529 U 0.525 Bi-214 0.4188 0.564 0.606 0.545 Ce-141 Ce-144 -0.08582 U -0.041 U 0.0759 U -0.00652 U Co-58 -0.0376 U -0.0492 U -0.0188 U 0.0404 U Co-60 0.01543 U -0.01 14 U -0.0085 U -0.0101 U Cr-51 Cs-134 -0.07087 U -0.00722 U 0.05 U 0.00387 U Cs-136 Cs-137 0.1302 0.04911-0.0282 U 0.055 Eu-152 0.2081 Fe-59 -0.004631 U -0.118 U -0.0337 U -0.0198 U 1-131 K-40 18.96 17.9 23.6 19.9 Kr-85 Mn-54 0.01329 U 0.0218 U 0.0214 U 0.0135 U Nb-95 0.008924 U 0.083 U 0.0807 -0.0332 U Np-239 Pb-212 0.5159 0.886 0.616 0.85 Pb-214 0.5312 0.632 0.678 0.457 Ra-226 1.015 1.52 3.46 Ru- 103 -0.00982 U 0.0493 U 0.0651 0.0594 Ru-106 -0.02222 U 0.0464 U 0.0459 U 0.087 U Sb-124 -0.00872 U 0.0524 U OU 0.00166 U Sb-125 Se-75 TI-202 TI-208 0.8942 0.704 0.897 U-235 Zn-65 0.1749 U -0.0132 U 0.0345 U 0.0192 U Zr-95 0.02463 U -0.01 13 U 0.00268 U -0.0279 U SOF 0.028 0.004 0.004

/

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 36 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe,'MA Station (Key) OG009-008 (916) O0G009-009 (917) O0G009-012 (920) OG009-013 (921)

Sample ID - OGO09GUFU008 - OGO09GUFU009 OGO09GUFU012 OGO09GUFU013 Date Sampled 7/30/1998 17/30/1998 ' 17/30/1998 7/30/1998 Ac-228 0.197 0.698 0.547 Ag-108m 0.0211 U -0.0156 U 0.0357 U 0.0175 U Ag-110m -0.0156 U -0.00688 U 0.0736 U -0.0448 U Am-241 0U OU OU OU II .

Ba-133 Ba-140 t Bi-212 0.877 0.383 U Bi-214 0.345 0.412 0.286 Ce-141 Ce-144 -0.132 U 0.00408 U 0.255 U 0.159 U Co-58 0.0204 U 0.00993 U OU  ! -0.0271 U Co-60 0.034 U -0.00109 U -0.0056 U 0.0373 U Cr-51 0.591 U Cs-134 -0.156 U 0.0109 U -0.0251 U OU Cs-136 Cs-137 0.463 0.0653 ' 0.682 0.743 Eu-152 Fe-59 0.0916 U -0.0867 U 0.134 U -0.00969 U 1-131 K-40 6.05 17 1.94 15.5 Kr-85 Mn-54 0.0149 U -0.0117 U -0.0499 U -0.0129 U Nb-95 -0.00255 U -0.0157 U 0.0536 U 0.0656 U Np-239 Pb-212 0.176 0.755 0.276 Pb-214 0.292 0.528 '0.359 Ra-226 1.76 Ru-103 0.0263 U 0.0232 U -0.041 U 0.0539 U Ru-106 -0.13 U 0.135 U 0.134 U OU.

Sb-124 0.00415 U -0.0164 U OU OU Sb-125 Se-75 Tl-202 Tl-208 0.733 0.405 U-235 0.156 U Zn-65 0.119 U -0.122 U 0.014 U 0.0316 U Zr-95 0.0434 U 0.0459 U OU -0.0825 U SOF 0.038 0.005 . II 0.056 0.061 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)'

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

as-Table 4 Page 37 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G009-014 (922) 10G09-015 (923) 0G009-016 (924) 0G009-018 (925)

Sample ID OG009GUFU014 OGO09GUFU015 OGO09GUFU016 OGO09GUFU018 Date Sampled 7/30/1998 17/30/1998 7/30/1998 8/3/1998 Ac-228 0.298 0.459 0.479 Ag-108m 0.0287 U 0.00118 U 0.000555 U -0.00419 U Ag-1 lOin 0.0291 U 0.00378 U 0.0308 U -0.0294 U Am-241 0U 0U OU 0U Ba-133 Ba-140 Bi-212 Bi-214 0.46 0.213 Ce-141 Ce-144 0.0799 U -0.0266 U 0.0635 U -0.0926 U Co-58 -0.00146 U -0.0215 U -0.0153 U 0.01 15 U Co-60 0.0409 U 0.0301 U -0.023 U 0.029 U Cr-51 Cs-134 OU -0.137 U 0.01I U 0.0302 U Cs-136 Cs-137 0.576 0.574 0.361 0.353 Eu-152 Fe-59 0.0424 U 0.0312 U 0.118 U -0.0772 U 1-131 K-40 1.891 4.07 9.28 11.9 Kr-85 Mn-54 0.0209 U -0.0108 U 0.0174 U 0.0217 U Nb-95 0.0178 U -0.0153 U -0.0744 U -0.00898 U Np-239 Pb-212 0.101 U 0.314 0.558 Pb-214 0.296 0.455 0.712 Ra-226 2.91 Ru-103 -0.0374 U -0.0694 U -0.00227 U -0.00539 U Ru-106 -0.151 U -0.296 U -0.136 U 0.16 U Sb-124 -0.0527 U OU 0.0391 U OU Sb-125 Se-75 Tl-202 0.564 U Tl-208 0. 142 U 0.209 U-235 Zn-65 0.0286 U -0.0453 U 0.0901 U -0.147 U Zr-95 -0.0602 U 0.01 16 U 0.0492 U -0.023 U SOF 0.047 0.047 0.029 0.029 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 38 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station R6we, MA Station (Key) 0G009-023 (926): 0G009-025 (927) OG009-026 (928) 0G009-028 (929) ^

Sample ID - OG009GUFU023 OGO09GUFU025 OGO09GUFU026 "' OG009GUFU028:-

Date Sampled 8/3/1998 - 8/3/1998 8/3/1998 8/3/1i998 Ac-228 0.364 0.543 0.444 0.509 Ag-108m -0.0105 U -0.0264 U 0.00748 U -0.01 16 U Ag-I 10m 0.0373 U -0.0292 U -0.0049 U 0.0112U Am-241 0U . OU, OU: OU Ba-133 Ba-140 Bi-212 Bi-214 0.565 0.518 0.605 Ce-141 Ce-144 0.115 U 0.0564 U -0.274 U 0.047 U Co-58 0.00661 U 0.0791 -0.0295 U -0.00659 U Co-60 0.0225 U 0.0184 U 0.00215 U 0.0425 U Cr-51 Cs-134 -0.0098 U 0.0251 U -0.0173 U -0.049 U Cs-136 Cs-137 0.771 0.354 0.706 0.83 Eu-1 52 Fe-59 -0.0501 U -0.0908 U 0.0487 U 0.107 U 1-131 K-40 9.68 13.9 7.81 8.83 Kr-85 Mn-54 -0.0181 U 0.0141 l 0.0307 U 0.0247 U Nb-95 -0.0634 U 0.0261 U 0.0854 U 0.0252 U Np-239 Pb-212 0.476 0.532 0.329 0.428 Pb-214 0.453 0.701 0.371 0.537 Ra-226 1.47 U 3.13 Ru-103 -0.01 14 U -0.00691 U -0.0336 U -0.0205 U Ru-106 -0.116 U 0.0754 U -0.184 U -0.13 U Sb-124 OU -0.0367 U 0.0297 U 0.014 U Sb-125 0.215 U Se-75 TI-202 TI-208 0.438 U-235 Zn-65 -0.0652 U 0.046 U -0.00525 U 0.0546 U Zr-95 0.011 U -0.121 U 0.087 U 0.017 U SOF 0.063 ,I1 0.058 0.029 vv 0.6R v.vvtv U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed'

A-Table 4 Page 39 of 52 Rad OOL-08 -- Soil (pCilg)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G009-029 (930) O0G009-030 (931) 0G009-033 (933) 0G009-034 (934)

Sample ID OGO09GUFU029 OGO09GUFU030 OG009GUFU033 OGO09GUFU034 Date Sampled 8/3/1998 8/30/1998 7/30/1998 8t3t1998 Ac-228 0.727 0.774 0.467 Ag-108m 0.015 U 0.0158 U 0.0465 U -0.00839 U Ag-110m -0.0153 U 0.033 U 0.0498 U -0.0107 U Am-241 OU 0U OU OlU Ba-133 Ba-140 Bi-212 0.6U Bi-214 0.478 0.56 0.424 Ce-141 Ce-144 -0.0931 U -0.132 U -0.0985 U -0.125 U Co-58 0.0231 U 0.00743 U 0.047 U -0.0415 U Co-60 OU 0.0247 U 0.0756 U 0.0446 U Cr-51 Cs-134 -0.109 U -0.241 U -0.102 U -0.034 U Cs-136 Cs-137 1.8 0.339 0.782 0.665 Eu-152 0.0613 U Fe-59 -0.00385 U -0.0668 U 0.0509 U 0. 106 U 1-131 K-40 16.7 19.11-0.0312 U 7.45 Kr-85 Mn-54 -0.00549 U 0.00801 U 0.00944 U 0.0491 Nb-95 -0.0927 U -0.01 19 U 0.0378 U 0.0354 U Np-239 -25.9 U Pb-212 0.664 0.789 0.387 Pb-214 0.418 0.573 0.258 Ra-226 2.24 U 1.99 Ru-103 -0.041 U -0.0188 U -0.133 U 0.0654 U Ru-106 0.0426 U -0.0963 U -0.407 U 0.0547 U Sb-124 -0.0227 U -0.024 U 0.107 U 0.071 U Sb-125 Se-75 TI-202 TI-208 0.923 U-235 Zn-65 -0.0224 U 0.131 U -0.114 U -0.0858 U Zr-95 -0.0823 U 0.02 U -0.0505 U 0.0298 U SOF 0.147 0.028 0.064 0.057 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 40 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station RoweNMA Station (Key) OG016-004 (13) OG016-015 (22) OG016-016 (23) 0G016-031 (36) 0G016-033 (38)

Sample ID : OGO16GUFDO04 OGO16GUFDO15: G0O16GUFDO16 OGO16GUFDO31 OGO16GUFDO33 Date Sampled 8/19/1998 8/25/1998  : 8/25/1998 8119/1998 8/19/1998 Ac-228 0.9593 -1.498 0.3606 0.1995 U Ag-108m -0.006818 U 0.007009 U -0.0314 U 0.008268 U -0.00395 U Ag-110mn -0.005729 U;; -0.005354 U -0.02086 U ,; 0.06118 -0.02992 U Am-241 OU, OU OU OU OU Ba-133 Ba-140 Bi-212 1.015 1.118 Bi-214 0.5478 - 0.4854 0.3048 Ce-141 Ce-144 -0.1 128 U 0.08086 U 0.004149 U 0.1886 U -0.03848 U Co-58 -0.02184 U -0.007422 U -0.07043 U -0.003675 U -0.05144 U Co-60 -0.01792 U OU' -0.02285 U 0.007816 U 0.02987 U Cr-51 Cs-134 -0.03307 U -0.121 U 0.03143 U -0.2259 U -0.02567 U Cs-136 Cs-137 0.4122 0.3412 1.085 0.9401 0.4696 Eu-152 Fe-59 -0.03385 U -0.04982 U I 0.03613 U 0.02437 U 0.0377 U 1-131 K-40 *. 22.3 20.1 16.35 10.87 11.65 Kr-85 Mn-54 -0.01011 U 0.01456 U -0.01655 U 0.03892 U 0.00668 U Nb-95 0.06776 0.01516 U 0.008556 U 0.04284 U 0.03078 U Np-239 i Pb-212 0.1041 0.949 1.169 0.208 0.2727 Pb-214 0.2619 0.5039 0.4659 0.3027 0.332 Ra-226 2.397 2.226 1.994 Ru-103 -0.04993 U 0.03799 U 0.02905 U -0.0132 U -0.004917 U Ru-106 0.06912 U 0.06531 U OU -0.047 U OU Sb-124 OU 0;0544 U 0.03122 U 0.06004 U 0.006604 U Sb-125 -0.1 163 U Se-75 0.02918 U i TI-202 TI-208 1.049  ;. 1.282 U-235 0.5021 U Zn-65 -0.1261 U 0.1082 U -0.002169 U -0.225 U -0.1337 U 6.0s8 Zr-95 0.01 197 U 0.01994 U -0.004686 U 0.07438 U 0.02234 U

:',. tT, !, I SOF 0.034 0.028  %

0.089 0.077 0.038 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed -

a-Table 4 Page41 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA j

Station (Key) 0G016-001 (10) 0G016-002 (11) OG016-003 (12) G0G16-007 (14) 0G016-008,(15)

Sample ID OG016GUFU001 OGO16GUFU002 OG016GUFU003 OGO16GUFU007 OGO16GUFU008 Date Sampled 8/19/1998 8/19/1998 8t19/1998 8/20/1998 8/20/1998..

Ac-228 0.7914 0.8022 0.6051 0.5035 0.7326 Ag-108m -0.01176 U 0.001512 U -0.003376 U 1-0.006305 U 0.003808 U Ag-110m 0.03421 U 0.005943 U 0.047321-0.009088 U 0.004646 U Am-241 0U OU OU OU OU Ba-133 Ba-140 Bi-212 0.8109 0.6853 0.4118 U 0.588 Bi-214 0.3831 0.4743 0.4623 0.4263 0.3977 Ce-141 Ce-144 0.08856 U -0.06599 U -0.02053 U -0.1578 U -0.09706 U Co-58 -0.004301 U -0.0122 U -0.02366 U 0.01299 U -0.01424 U Co-60 0.02595 U -0.001 107 U -0.00956 U -0.008027 U 0.05288 U Cr-51 Cs-134 -0.05239 U -0.07575 U -0.07861 U 0.01374 U 0.04065 U Cs-136 Cs-137 0.3815 0.2236 0.3828 0.3202 0.4029 Eu-152 Fe-59 0.01775 U -0.04437 U -0.03366 U -0.05609 U OU 1-131 K-40 17.89 20.2 14.7 14.51 13.32 Kr-85 Mn-54 -0.006281 U -0.003524 U -0.0 1307 U -0.04165 U -0.01007 U Nb-95 0.006588 U 0.05996 0.031 U 0.04941 U -0.03954 U Np-239 Pb-212 0.7243 0.7167 0.6409 0.5256 0.8041 Pb-214 0.3705 0.4101 0.4185 0.4494 0.5824 Ra-226 1.864 2.117 1.882 Ru-103 0.02282 U -0.01099 U 0.04222 U 0.01432 U -0.003466 U Ru-106 0.06335 U 0.06572 U 0.05708 U 0.2595 U -0.1205 U Sb-124 -0.003107 U 0.008442 U -0.04307 U OU 0.02147 U Sb-125 Se-75 Tl-202 Tl-208 0.6062 0.699 0.5846 0.6201 U-235 Zn-65 -0.08528 U 0.0296 U -0.1153 U -0.03505 U -0.06859 U Zr-95 0.0111 U 0.001158 U -0.01814 U 0.01044 U -0.05216 U SOF 0.031 0.018 I 0.031 I 0.026J. 0.033 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 42 of 52 Rad OOL-08 - Soil (pCilg)

Yankee Nuclear Power Station Rowe, MA Station (Key) 'OG016-009 (16) ' OG016-010 (17) ' OG016-011 (18) 1 OG016-012 (19) O0G016-013 (20)-

Sample 'ID 'OG016GUFU009 !OG016GUFU010 IOGO16GUFU01L OGO16GUFU012: OGO16GUFU013 Date Sampled 8/20/1998 -8/20/1998 j8/20/1998 ' " 8/20/1998 . - 8/20/1998 - -

Ac-228 0.8087 0.9591 1.179 1.032 1.842 Ag-108m 0.009189 U -0.01112 U -0.0'1477 U -0.01151 U .

0.009306 U Ag-110m 0.02624 U -0.01115 U 0.01064 U 0.03403 U -0.01839 U F., ..

Am-241 0U 0U OU' OU OU Ba-133 ,

Ba-140 . . . I.

Bi-212 0.5888 1.087 1.455 0.6073 1.645 Bi-214 0.481 0.4405 , 0.5853 0.4159 0.6024 Ce-141 Ce-144 0.02851 U 0.02936 U  : 0.01258 U -0.08413 U -0.1834 U Co-58 -0.03111 U 0.008127 U -0.04494 U -0.01704 U -0.02241 U Co-60 0.01359 U OU -0.005869 U -0.02299 U -0.04683 U - .

Cr-51 Cs-134 -0.06118 U -0.02009 U -0.01431 U -0.1538 U -0.02884 U Cs-136 Cs-137 0.2973 0.3377 0.4982 0.6007 0.8896 Eu-152 Fe-59 0.0617U - 0.07885 U 0.1354 U -0.1066 U -0.006751 U 1-131 K-40 21 19.2 25.47 20.78 24.47 Kr-85 Mn-54 -0.00 1972 U -0.0'1724 U 0.006489 U 0.004236 U 0.04185 U Nb-95 0.001461 U 0.03858 U 0.0006533 U 0.03901 U 0.08143 U Np-239 Pb-212 0.768 0.8702 1.25 ' l 0.9289 1.623 Ii! 0.7249 0.4947 0.5835 Pb-214 0.572 0.5223 I , '

Ra-226 1.246 U 2.261 I 3.18 2.074 4.871 Ru-103 0.03357 U 0.009912 U -0.04884 U -0.04676 U 0.02435 U I .,

Ru-106 -0.08391 U 0.1396 U 0.2099 U Ii 0.3653 -0.06977 U Sb-124 -0.04048 U -0.05589 U

. I -

0.07772 U 0.02296 U -0.008881 U Sb-125 -0.09845 U i Se-75 Tl-202 Tl-208 0.5869 0.8941 I 1.172 f 0.8733 1.197 U-235 Zn-65 -0.1115 U -0.02873 U 0.217 U 0.06381 U 0.1 175 U Zr-95 -0.01679 U -0.01426 U 0.0005393 U ; 0.02571 U 0.07863 U I., .; 0.028 0.041 ,' ! , 0.054 0.073 SOF A 0.024 A - a U-not 'detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results 'indicate chemical not analyzed 'I , - I

J_

Table 4 Page 43 of 52 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA I

Station (Key)' 0G016-014 (21) 1G0O16-017 (24) 0G016-018 (25) 0G016-020 (26) OGO16-021 (27)

Sample ID OGO16GUFU014 OG016GUFU017 OG016GUFU018 OGO16GUFU020 OGO16GUFU021 Date Sampled 8/20/1998 8/25/1998 8/25/1998 8/25/1998 8/25/1998 Ac-228 0.95271 0.004436 0.8497 0.8253 0.7901 0.9019 Ag-108m 0.01043 U U 0.0006316 U -0.0004191 U -0.01143 U Ag-I 10m. -0.002221 U 0.005487 U -0.01568 U 0.01476 U -0.01 149 U Am-241 0U 0U 0U OU OU Ba-133 Ba-140 Bi-212 1.106 0.9786 1.829 0.9248 0.6831 Bi-214 0.4906 0.4598 0.4407 0.4505 Ce-141 Ce-144 -0.273 U -0.1685 U 0.05577 U 0.2664 0.05307 U Co-58 -0.009821 U -0.01978 U -0.01203 U -0.01 107 U -0.02928 U Co-60 -0.02399 U -0.01094 U -0.01341 U -0.001766 U 0.03236 U Cr-51 Cs-134 -0.008315 U -0.03023 U -0.1496 U -0.001508 U -0.01341 U Cs-136 Cs-137 0.396 0.6411 1.138 0.4068 0.2302 Eu- 152 Fe-59 -0.1091 U -0.05871 U -0.045 U 0.00879 U -0.1129 U 1-131 K-40 21.54 19.18 18.68 17.92 19.56 Kr-85 Mn-54 -0.03772 U 0.007949 U 0.02475 U -0.01 143 U 0.003011 U Nb-95 -0.0008779 U -0.02721 U 0.01515 U 0.04772 U 0.08526 Np-239 Pb-212 0.9489 0.7408 0.8318 0.7731 0.935 Pb-214 0.5948 0.5359 0.5937 0.5322 0.4459 Ra-226 1.681 1.552 1.568 U Ru-103 0.049881-0.009895 U 0.006924 U 0.0192 U -0.03472 U Ru-106 -0.07037 U 0.1001 U -0.2401 U 0.1443 U -0.1552 U Sb-124 0.008152 U 0.02774 U 0.002799 U -0.04749 U 0.01839 U Sb-125 Se-75 TI-202 TI-208 0.8643 0.5973 0.5649 0.7489 U-235 Zn-65 -0.02826 U 0.1536 -0.02473 U -0.1053 U -0.06881 U Zr-95 -0.01046 U 0.007542 U -0.04858 U -0.04025 U 0.01568 U SOF 1.

0.032 .L 0.052 0.093 1. 0.033 0.019 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 44 of 52 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 'fOGO16-022 (28) O0G016-023 (29) - 0G016-024 (30) 0G016-025 (31) . 0G016-026 (32)

Sample ID , OGO16GUFU022 OG016GUFU023 OGO16GUFU024 OGO16GUFU025 OGO16GUFU026 Date Sampled 8/26/1998 - J8/26/1998 . ; . 8/26/1998 - 8/26/1998 18/26/1998 Ac-228 0.3677 0.2878  ; -. 0.7329 0.576 Ag-108Im 0.001732 U 0.01082 U , .,

-0.02056 U 0.003109 U 0.00337 U.

Ag-1r0m 0.004223 U 0.009255 U 0.03907 U 0.01652 U -0.01921 U Am-241 0U OU 0U 0U 0U Ba-133 Ba-140 Bi-212 0.69621 ' 0.8541 Bi-214 0.4419  ;- 1 0.4008 0.4982 Ce-141 Ce-144 0.03939 U -0.1207 U -o.io95 U 0.02367 U , -0.04843 U Co-58 -0.002512 U -0.01555 U 0.003554 U -0.01095 U -0.04082 U Co-60 -0.001849 U 0.02242 U -0.02517 U 0.02108 U -0.0215 U Cr-51 Cs-134 -0.05299 U -0.0262 U 7 -0.0383 U 0.01684 U -0.1208 U Cs-136 Cs-137 1.104 0.9854 1.259 I I 1.394 0.9239 Eu-152 Fe-59 0.01355 U -0.01743 U -0.02798 U 0.06254 U -0.03254 U 1-131 K-40 14.11 12.88 11.5 16.09 20.36 Kr-85 Mn-54 0.008515 U ; 0.00338 U -0.003754 U :1-0.00543 U -0.02351 U Nb-95 0.02669 U , -0.0004189 U - - -0.007335 U 0.03393 U -0.0219 U Np-239 Pb-212 - 0.3027 0.2944 ).3498 0.5812 0.7404 Pb-214 0.3954 0.3722 ).4582 0.4755 0.4511 Ra-226 1.478 U 2.053 - .1.554 Ru-103 -0.02592 U -0.0006403 U -0.02972 U 0.001852 U -0.01688 U Ru-106 0.07174 U -0.1914 U -0.1 198 U -0.2274 U 0.1756 U Sb-124 0.0389 U OU OU' OU -0.001953 U Sb-125 I 0.1022 U Se-75 Tl-202 TI-208 0.174 U 0.6321 U-235 Zn-65 0.1087 U -0.1547 U -0.1479 U -0.009383 U -0.1005 U Zr-95 0.01101 U -0.008295 U 0.004153 U -0.06968 U 0.04015 U SOF 0.09 0.081 0.103 0.114 0.075 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 45 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key)1OG016-027 (33) OC016-028 (34) 0G016-029 (35)1OG016-032 (37) DG016-034 (39)

Sample ID OG016GUFU027 OGO16GUFU028 OGO16GUFU029 OGO16GUFU032 OGO16GUFU034 Date Sampled j8t26/1998 8/26/1998 8/26/1998 18/26/1998 8/25/1998 Ac-228 0.8344 0.7719 0.6627 0.8934 Ag-108m -0.04492 U -0.06176 U 0.02608 U 0.01657 U -0.01457 U Ag-110m 0.03229 U 0.03801 U -0.004335 U -0.04704 U 0.03078 U Am-241 0U 0.1547 U OU OU OU Ba- 133 Ba-140 Bi-212 88.75 U 0.7288 0.5794 Bi-214 0.4379 0.4773 0.4032 0.4595 Ce-141 Ce-144 -0.005507 U -0.228 U 0.06469 U -0.006687 U 0.2545 Co-58 0.0009153 U -0.001463 U -0.04229 U -0.02595 U -0.02811 U Co-60 -0.03622 U -0.01234 U 0.05636 U 0.01876 U 0.02475 U Cr-51 0.6555 Cs-134 -0.1076 U 0.07043 U -0.07071 U -0.01 131 U 0.03646 U Cs-136 Cs-137 0.4856 1.842 1.935 0.9934 0.2428 Eu-152 0.4217 U Fe-59 0.02445 U -0.08525 U OU -0.0313 U -0.08661 U 1-131 K-40 13.8110.7369 U 19.07 14.94 17.77 Kr-85 Mn-54 0.0197 U -0.02274 U -0.04451 U 0.01481 U 0.006394 U Nb-95 -0.04195 U -0.001218 U -0.005675 U -0.05373 U 0.01286 U Np-239 Pb-212 0.8249 0.4361 0.7489 0.9526 0.8578 Pb-214 0.4436 0.4552 0.4281 0.5435 Ra-226 1.542 U 1.739 Ru-103 -0.02967 U 0.02928 U 0.04989 U -0.01796 U -0.0227 U Ru-106 0.05164 U -0.00000001753 U 0.04265 U -0. 1489 U OU Sb-124 -0.00638 U 0.0459 U 0.05497 U OU 0U Sb-125 Se-75 0.307 U TI-202 TI-208 0.6332 0.7102 0.7105 U-235 Zn-65 0.1025 U -0.06812 U -0.09206 U -0.1493 U 0.003315 U Zr-95 0.01365 U 0.03301 U -0.03898 U 0.02225 U 0.04892 U SOF 0.04 0.15 0.158 0.081 0.02 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 46 of 52 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OGO20-019 (978) OG020-020 (979) 10G20-021 (980) -OG020-022 (981)

Sample ID OG020GUFDO19 OGO20GUFDO20 G0O20GUFD021 - OGO20GUFD022 Date Sampled [9/22/1998 d 1 9/22/1998 9/22/1998 1 9/23/1998 Ac-228 0.826 0.818 - 1.03 0.896 Ag-108m -0.0301 U -0.0271 U -0.0133 U 0.00147 U Ag-110m 0.00684 U -0.00819 U -0.0104 U 0.00559 U Am-241 0U OU OU OU Ba-133 Ba-140 Bi-212 Bi-214 0.7441. 448U 0.533 0.763 0.547 0.465 I

Ce-141 Ce-144 OU -0.177 U 0.0693 U -0.0438 U Co-58 0.000869 U 0.0256 U -0.00609 U 0.0349 U Co-60 -0.0294 U -0.0135 U -0.00459 U -0.00993 U Cr-51 Cs-134 -0.022 U -0.103 U -0.144 U 0.0831 U Cs-136 Cs-137 0.0583 0.151 0.0568 0.099 Eu-152 Fe-59 -0.0227 U -0.0252 U -0.0343 U 0.0372 U 1-131 K-40 19.1 21 21.8 19 Kr-85 Mn-54 0.0137 U 0.00613 U 0.00759 U -0.0089 U Nb-95 0.00686 U 0.0275 U 0.0257 U 0.0272 U Np-239 Pb-212 0.765 0.865 0.876 0.817 Pb-214 0.418 0.616 0.586 0.641 Ra-226 1.71 1.51 1.54 1.2U Ru-103 0.00768 U 0.00689 U -0.0409 U -0.000651 U Ru-106 0.223 U OU -0.2 U -0.0578 U Sb-124 0.0243 U 0.0127 U -0.0439 U 0.00348 U Sb-125 Se-75 TI-202 TI-208 0.719 0.835 0.634 0.64 U-235 Zn-65 0.0238 U -0.06 U 10.0503 U -0.0214 U Zr-95 0.0499 U 0.0388 U 0.0124 U -0.00663 U SOF I 0.005 0.012 L 0.005 I 0.008 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate' chemical not analyzed

a-Table 4 Page 47 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA

I Station (Key) 0G020-023 (982) OG020-024 (983) OGO20-025 (984) OG020-026 (985)

Sample ID OGO20GUFDO23 OG020GUFDO24 OGO20GUFDO25 OGO20GUFDO26 Date Sampled 9/23/1998 9/23/1998 9/23/1998 9/23/1998 Ac-228 0.966 0.261 0.947 0.741 Ag-108m -0.00387 U -0.0447 U 0.0183 U -0.0131 U Ag-1 10m 0.0611 -0.01 17 U 0.0251 U -0.0573 U Am-241 OU 0U OU OU Ba-133 Ba-140 Bi-212 0.869 1.09 1.09 Bi-214 0.665 0.243 0.528 0.413 Ce-141 Ce-144 0.055 U -0.1 U -0.0662 U -0.0709 U Co-58 0.0106 U 0.00874 U -0.0204 U 0.0104 U Co-60 -0.0479 U 0.01 U 0.0223 U -0.0229 U Cr-51 Cs-134 -0.137 U -0.189 U -0.113 U 0.00919 U Cs-136 Cs-137 0.12 3.57 0.0554 0.0684 Eu-152 Fe-59 -0.016 U OU 0.0656 U -0.00795 U 1-131 K-40 20.7 10.3 20.2 20.1 Kr-85 Mn-54 -0.0125 U -0.0387 U 0.0186 U 0.0344 U Nb-95 0.0613 0.0659 0.0283 U 0.0468 U Np-239 5.4U Pb-212 0.893 0.118 U 0.885 0.777 Pb-214 0.543 0.315 0.539 0.56 Ra-226 1.74 1.67 Ru- 103 0.00914 U 0.0459 U 0.0363 U 0.0103 U Ru-106 0.127 U -0.262 U -0.0406 U 0.252 U Sb-124 OU OU 0.00625 U -0.00909 U Sb- 125 -0.0918 U -0.101 U Se-75 TI-202 0.118 U TI-208. 0.926 0.896 0.76 U-235 Zn-65 -0.0191 U -0.0797 U 0.0171 U -0.0424 U Zr-95 0.0291 U -0.012 U 0.0775 0.00578 U SOF 0.01 0.292 0.005 0.006 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 48 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G020-031 (988) OG020-029 (986) OG020-030 (987) 1SE417 (3072) SE418 (3073)

Sample ID, : OGO20GUFDO31 OG020GUFU029 OGO20GUFU030 SE417 f SE418 -

Date Sampled ' 9/23/1998 9/23/1998  ; 9/23/1998 11i/5/1997 -- j li/5/1997 Ac-228 0.759 - 0.385 0.561 0.5245 0.9199 Ag-108m -0.000587 U -0.0175 U 0.00435 U - -0.006383 U - -0.02059 U Ag-110m -0.0199 U -0.0181 U I -0.0293 U -0.008888 U -0.007263 U Am-241 OU OU 0U OU .OU Ba-133 -0.0344 U Ba-140 Bi-212 0.97 0.54 U 1.206 0.805 Bi-214 0.611 -0.213 0.463  ; 0.3879 0.3901 Ce-141 Ce-144 -0.0715 U OU- 0.0328 U 0.1696 U ; -0.062 U - -

Co-58 0.0078 U -0.0228 U 0.003 U 0.01166 U -0.01301 U '

Co-60 0.0233 U 0.0562 U 0.0195 U 0.01632 U  : 0.006687 U '

Cr-5I .

Cs-134 -0.0462 U -0.73 U -0.108 U -0.007863 U : -0.04454 U ' !-

Cs-136 Cs-137 0.0225 U 1.65 1-0.00586 U 0.076311-0.009189 U Eu-152 Fe-59 -0.112 U -0.0512 U -0.0534 U -0.01271 U -0.05772 U 1-131 K-40 21 10 I 21.6 8.838 15.24 Kr-85 Mn-54 -0.00703 U 0.0248 U ' 0.0342 U -0.01025 U -0.01325 U Nb-95 0.0525 U -0.0239 U . -0.0193 U -0.02251 U -0.01411 U Np-239 0.111 U Pb-212 0.815 ' 0.265 0.862 '0.5092 0.7473 Pb-214 0.638 0.284 0.529 0.4062 0.3953 Ra-226 0.972 U 1.689 Ru-103 0.00367 U -0.0344 U -0.0175 U  ! I

-0.007285 U' 0.002992 U '

Ru-106 0.0816 U 0.042 U -0.34 U -0.1821 U' 0.01668 U Sb-124 -0.018 U 0.0201 U 0.0238 U -0.006481 U' -0.009664 U Sb-125 Se-75 TI-202 Tl-208 0.933 0.749 . I0.4198 0.6824 U-235 Zn-65 -0.0275 U I -0.0284 U -0.108 U 0.0856 U' -0.02861 U Zr-95 -0.00603 U 0.00961 U 0.135 -0.022 U 0.03444 U -0.02943 U SOF i0.135 0.006 U-not detected (value' is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed -

Table 4 Page 49 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA

.~~

Station (Key) SE419 (3074) SE420 (3075) SE421 (3076) SE422 (3077) SE423 (3078) SE424 (3079)

Sample ID SE419 SE420 SE421 SE422 SE423. SE424 Date Sampled 11/5/1997 11/5/1997 11/5/1997 11/8/1997 11/5/1997 11/5/1997 Ac-228 0.5382 0.6888 0.9341 0.6103 0.5819 -0.6638 Ag-108m 0.01238 U 0.003596 U -0.003313 U 0.009506 U -0.002452 U 0.008404 U Ag-Il10m -0.009862 U 0.008202 U -0.005319 U -1.854 U -0.01759 U -0.0218 U Am-241 0U OU OU OU OU OU Ba-133 Ba-140 Bi-212 0.6534 0.7:215 0.603 0.6882 0.5145 Bi-214 0.3968 0.4634 0.4:266 0.5023 0.3874 0.3946 Ce-141 Ce-144 0.01256 U 0.1822 U -0.01251 U -7.482 U -0.04796 U -0.1898 U -

Co-58 -0.009456 U 0.001776 U -0.008908 U 2.586 U -0.02246 U 0.004494 U Co-60 -0.01566 U -0.003583 U -0.01726 U 0.4447 U 0.009626 U -0.03207 U Cr-51 Cs-134 -0.002709 U -0.0744 U 0.0117 U -6.709 U -0.02948 U 0.02549 U Cs-136 Cs-137 -0.01962 U 0.07867 0.1(D3710.1354 U 0.06655 0.09131 Eu-152 Fe-59 -0.04878 U 0.01466 U -0.0529 U 44.88 U 0.05925 U OU I 1-131 K-40 11.7 16.56 122.75 14.04 14.74 13.67 Kr-85 4.092 Mn-54 0.02458 U 0.00989 U -0.01348 U -0.5399 U 0.003264 U 0.02942 U Nb-95 -0.001275 U -0.02551 U 0.02919 U 7.664 U -0.02093 U 0.03955 U Np-239 Pb-212 0.5568 0.7464 0.6791 0.6514 0.5636 0.5911 Pb-214 0.3794 0.4312 0.6794 0.4449 0.3969 0.4737 Ra-226 0.8523 1.345 1362 1.96 Ru-103 0.01417 U -0.0 1762 U 0.02329 U 0.4607 U -0.01417 U -0.02617 U Ru-106 0.1684 U 0.06329 U -0.02541 U 9.782 U 0.04238 U -0.148 U Sb-124 0.001806 U 0.02171 U 0.02973 U OU 0.001668 U OU Sb-125 -0.07792 U Se-75 Tl-202 Tl-208 0.5636 0.8507 0.575 0.5603 0.6635 U-235 Zn-65 -0.003031 U -0.007242 U -0.04128 U 17.99 U -0.001432 U -0.02532 U Zr-95 0.06444 -0.01751 U -0.0527 U -4.122 U -0.003744 U 0.06393 U SOF 0.006 0.008 0.005 0.007 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 50 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) fSE425 (3080) SE426 (3081) -SE427.(3082) - SE428 (3083) SE429 (3084) SE430 (3085)

Sample ID SE425 - 5-SE426 SE427 - SE428  ; SE429 SE430 Date Sampled, 11/5/1997 11/5/1997 111/5/1997 11/5/1997 - 11/5/1997 Ac-228 0.623 0.6469 0.50

• 0.5952 , 0.4449 i 0.4629 Ag-108m -0.0002562 U 0.01919 U " -0.01727 U 0.02527 U -0.00332 U 0.02478 U '

Ag-i 10m .01521 U -0.04795 U 0.004134 U 0.004097 U -0.01063 U -0.003003 U Am-241 0U OU OU OU OU OU Ba-133 0.0818 U Ba-140 Bi-212 0.745 0.6 0.6874 0.3864 U Bi-214 0.4637 0.4238 0.32 - 0.3981 0.4923 0.4355 Ce-141 Ce-144 -0.1479 U -0.01798 U -0.1658 U -0.1762 U 0.1566 U 0.2067 U Co-58 0.005371 U -0.04292 U; '0.03237 U 0.03922 U -0.02106 U 0.01 136 U Co-60 -0.01311 U. -0.006057 U 0.01288 U -0.01506 U 0.005353 U 0.02562 U Cr-51 Cs-134 -0.06943 U -0.05836 U -0.1369 U -0.05731 U -0.06949 U 0.01358 U Cs-136 Cs-137 0.03577 U 0.1132 '- 0.11 0.1207 0.1397 0.15431 Eu-152 Fe-59 -0.1226 U 0.03612 U -0.06311 U 1-0.1382 U OU 0.02391 U 1-131 K-40 15.41 14.85 . 9.9 14.8  ; . 13.12 11.93 Kr-85 Mn-54 -0.00528 U 0.004176 U 0.01483 U 0.02376 U 0.001553 U -0.01805 U Nb-95 0.05882 U -0.03108 U 0.01152 U 0.0324 U 0.05123 U 0.02131 U Np-239 Pb-212 0.5442 0.7314 0.56 ,- - 0.6344 0.6529 0.5007 Pb-214 0.5413 0.5722 0.38 0.3911 .: 0.3503 0.3851 Ra-226 2.214 2.548 2.087 0.9863 U -

Ru-103 -0.01807 U -0.02708 U -0.03671 U 0.00418 U 0.02694 U 0.0235 U Ru-106 -0.102 U 0.0917 U -0.1449 U -0.3884 U -0.09867 U 0.2872 Sb-124 -0.03341 U -0.009595 U 0.004273 U OU  :'1 0.002382 U -0.01222 U Sb-125 -0.02262 U .

Se-75 TI-202 TI-208 0.6651 0.34 0.5281 0.4111 U-235 Zn-65 -0.02844 U 0.04795 U  !, 0.05297 U 0.07876 U: -0.0581 U -0.03245 U Zr-95 V 0.02146 U 0.0359 U 0.02398 U 1-0.02112 U 0.06597 U 0.01525 U SOF I1 0.009 0.0091 .( 0.01 ' . 0.011 I 0.017 J. I J. I A.

U-not detected (value is not greater than 2 sigma), UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

0-Table 4 Page 51 of 52 Rad OOL-08 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) SE431 (3086) SE432 (3087) TS438 (3203) TS439 (3204) TS523 (3251) TS529 (3257)

Sample ID SE431 SE432 TS438 TS439 TS523 TS529 Date Sampled 11/5/1997 111/5/1997 11/7/1997 11/7/1997 18/3/1998 8/11/1998 Ac-228 0.6346 0.5064 0.2861 0.8409 0.7888 Ag-108m -0.01723 U -0.003154 U -0.01612 U -0.003648 U -0.00707 U 0.006405 U Ag-110mI -0.02504 U -0.01 1 U -0.03053 U 0.001 156 U -0.0415 U -0.002763 U Am-241 0U 0U 0U 0U OU OU Ba-133 Ba-140 Bi-212 0.6526 0.424 U 1.27610.5084 U Bi-214 0.3662 0.2707 0.3483 0.2418 0.4548 0.3882 Ce-141 Ce-144 -0.03207 U -0.1092 U 0.008244 U -0.02739 U 0.006563 U 0.1735 U Co-58 0.01967 U 0.006777 U 0.007872 U 0.001454 U -0.02666 U -0.002605 U Co-60 -0.000933 U -0.000135 U -0.00210 I U -0.00629 U 0.04258 U 0.007699 U Cr-51 Cs-134 -0.05798 U -0.003194 U -0.03807 U 0.02601 U -0.01442 U -0.02166 U Cs-136 Cs-137 0.05409 0.116 0.1179 0.811910.008798 U 0.1229 Eu-152 Fe-59 0.06524 U 0.1061 U -0.0148 U -0.0246 U -0.02172 U 0.007254 U 1-131 K-40 12.99 11.76 11.23 8.173 18.32 15.12 Kr-85 Mn-54 0.01056 U -0.004852 U -0.006879 U 0.02037 U -0.04475 U -0.02106 U Nb-95 0.009301 U 0.01 19 U 0.02738 U 0.01894 U 0.02085 U 0.00 1322 U Np-239 Pb-212 0.7257 0.4712 0.2862 0.2306 1.003 0.7187 Pb-214 0.6302 0.2979 0.2649 0.2158 0.5057 0.4813 Ra-226 1.026 U 0.8952 U 1.481 1.393 Ru-103 0.02592 U 0.02676 U 0.01813 U -0.007464 U 0.002555 U 0.01618 U Ru-106 0.1134 U 0.2298 0.09738 U -0.2353 U OU 0.2952 U Sb-124 0.01557 U -0.01446 U 0.006824 U OU 0.02253 U 0.03435 U Sb-125 Se-75 TI-202 TI-208 0.6901 0.4368 0.6672 0.678 U-235 Zn-65 0.01765 U -0.02355 U 0.02206 U -0.06216 U -0.03108 U -0.07274 U Zr-95 0.02414 U 0.03449 U 0.01347 U 0.001865 U 0.0485 U 0.009451 U SOF 0.004 0.013 0.01 0.066 0.01 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 52 of 52 Rad OOL-08 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) TS530 (3258) TS531 (3259) TS532 (3260)

Sample ID TS530 TS531 TS532 Date Sampled 8/11/1998 8/11/1998 8/11/1998 Ac-228 0.6607 0.76 0.7526 Ag-108m 0.001318 U 0.001769 U -0.006194 U Ag-110n 0.01457 U 0.008836 U 0.007479 U Am-241 0U OU OU Ba-133 Ba-140 Bi-212 0.8217 0.8376 Bi-214 0.4129 0.448 0.5783 Ce-141 Ce-144 0.02024 U -0.05177 U 0.1439 U Co-58 0U -0.008753 U 0.008853 U Co-60 -0.02661 U -0.02552 U -0.00386 U Cr-51 Cs-134 0.01379 U -0.1225 U -0.1138 U Cs-136 Cs-137 0.1285 0.02641 U 0.03196 U Eu-152 Fe-59 0U -0.05111 U 0.008111 U 1-131 K-40 16.71 18.34 17.42 Kr-85 Mn-54 0.02802 U -0.01672 U 0.01531 U Nb-95 -0.002117 U 0.01207 U 0.05305 Np-239 Pb-212 0.6277 0.7668 0.8271 Pb-214 0.4322 0.5595 0.5315 Ra-226 1.78 1.548 1.693 Ru-103 0.01 101 U 0.001617 U -0.01 145 U Ru-106 -0.05079 U -0.03714 U 0.07826 U Sb-124 - 0.05475 -0.01837 U C- OU -

Sb-125 Se-75 TI-202 TI-208 0.713 0.8068 U-235 Zn-65 0.003269 U . 10.1244 U 0.02858 U Zr-95 -0.05051 U -- .01633 U 0.04843 U -

SOF I 0.01 I I U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 2 Page l of I Statistical Data Summary - OOL-08 -- Water Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 1 1 0.000 0.000 0.000 0.000 Ag-108m pCi/g 0 3 0.000 Ag-110m pCi/g 0 3 0.000 Bi-214 pCi/g 1 2 0.000 0.000 0.000 0.000 Cc- 144 pCi/g 0 3 0.000 Co-58 pCi/g 0 3 0.000 Co-60 pCi/g 0 3 0.000 Cs-134 pCi/g 0 3 0.000 Cs-137 pCi/g 1 3 0.000 0.000 0.000 0.000 Fe-59 pCi/g 0 3 0.000 1-135 pCi/g 0 1 0.000 K-40 pCi/g 0 3 0.000 Kr-85 pCi/g 0 3 0.000 Mn-54 pCi/g 0 3 0.000 Nb-95 pCi/g 0 3 0.000 Np-239 pCi/g 0 1 0.000 Pb-214 pCi/g 2 3 0.000 0.000 0.000 0.000 0.000 Ru-103 pCi/g 0 3 0.000 Ru-106 pCi/g 0 3 0.000 Sb-124 pCi/g 0 3 0.000 Sb-125 pCi/g 0 3 0.000 Sc-75 pCi/g 0 3 0.000 Zn-65 pCi/g 0 3 0.000 Zr-95 pCi/g 0 3 0.000

(. . U

Table 4 Page 1 of I Rad OOL-08 -- Water (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G002-035 (81) 0G003-035 (203) 0G004-035 (267)

Sample ID OG002GUFW036 OGO03GUFW035 OGO04GUFW035 Date Sampled 9/17/1998 9/30/1998 9/30/1998 Ac-228 1.345E-08 Ag-108m -0.0000000003268 U 0.000000001154 U 0.0000000001944 U Ag-lOrm -0.000000001161 U -0.000000002671 U 0.00000007631 U Bi-214 1.441E-08 0.000000003483 U Ce-144 0.000000001311 U -0.0000000008737 U 0.0000003764 U Co-58 -0.0000000008714 U 0.000000001142 U -0.00000004428 U Co-60 0.000000001713 U 0.000000001762 U -0.00000002407 U Cs-134 0.0000000005304 U 0.0000000001566 U 0.000000005987,U Cs-137 1.904E-09 -0.000000002549 U 0.000000004784 U Fe-59 0.0000000006446 U 0.000000002185 U 0.0000004996 U 1-135 0.01365 U K-40 0.00000000687 U -0.00000001194 U 0.00000001099 U Kr-85 0.0000003077 U -0.0000001831 U 0.000001351 U Mn-54 0.00000000007999 U 0.0000000006786 U 0.00000002926 U Nb-95 -0.0000000002601 U -0.000000001185 U -0.00000009841 ,U Np-239 0.0001459 U Pb-214 4.852E-09 1.1 15E-08 0.000000004064 U Ru-103 -0.0000000001462 U -0.000000001457 U -0.0000003749 U Ru-106 -0.000000004796 U -0.000000009494 U 0.0000002516 U Sb-124 -0.000000004104 U -0.0000000002164 U -0.000001102 U j Sb-125 0.000000001391 U 0.000000003607 U 0.00000006488 U Se-75 0.0000000004304 U -0.000000001773 U 0.000000007963 U Zn-65 0.000000002153 U 0.000000000227 U -0.0000001205 U Zr-95 -0.0000000001453 U 0 U 0.0000005251 U J

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Water Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Underground Systems Structure / System Water Component J Description OOL-08 j Location starting at 10,000 gal well water tank on hill a 6" min 5' underground Impacted?

I line goes east to a point just north of the middle of the north side of the SSS bldg; a 1" line from tank I__ _ _ jto admin bldg I I Page 1 of I

( (.

I

Historical Site Assessment and Classification Summary Survey Area Name: SE Construction Fill Area, Designator: OOL-09 Survey Area Description Survey area OOL,09 consists of land area that received construction spoils from various projects over the life of the plant. Survey area OOL-09 contains about 2390 square meters of soil surface area.

Survey area OOL-09 is bounded by.OOL-08 on the north, east and south and OOL-1O on the west.

There are no sub-surface systems that traverse or connect within survey area OOL-09.

Items of note located within or adjacent to survey area OOL-09 include:

Groundwater Monitoring wells of the CFW series.

Page 1 of 5

a-Historical Site Assessment and Classification Summary Survey Area Name: SE Construction Fill Area Designator: OOL-09 Survey Area History Survey area OOL,09 is not part of the RCA. There are no radioactive systems present in OOL-09. Survey area OOL-09 was not used for storing radioactive material or processing, packaging or disposal of radioactive waste.

Surveys Area OOL-09 contains an accumulation of soil and construction debris as well as discarded components that were generated over the life of the plant (Ref 1 & 2).

Survey area OOL-09 is likely to be minimally impacted by low levels of radioactivity as a result of soil and material storage.

Modifications performed at the YNPS site in support of decommissioning that changed the configuration of OOL-09 include:

• Deposition of the soil from the ISFSI construction.

Scoping/Characterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan (Ref 3).

Continuing Soil Characterization sampling was conducted under the guidance provided in NUREGICR-5849. A series of test pits were excavated to characterize the nature of materials deposited in OOL-09. In addition, a ground penetrating radar unit was used to locate large subsurface objects. The artifacts found were excavated and evaluated for radiological hazard. The investigations did not disclose any discernable radiological issues in this survey area.

Decommissioning No decommissioning activities have been performed for survey area OOLrO9.

Page 2 of 5

Historical Site Assessment and Classification Summary Survey Area Name: SE Construction Fill Area Designator: OOL-09 Findings Survey area OOL09 is a land area that is located in the non-RCA' portion of the site.'-

Survey area OOL-09 is minimally impacted by low levels of radioactivity present in soil deposited in this area. Survey area OOL-09 may contain residual radioactivity concentrations at a small fraction of DCGL.

The radionuclide mix likely to be present in OOL-09 includes all radionuclides identified in the radioactive systems of the plant (Ref 4). The primary radionuclides of concern for survey area OOL-09 are Co-60, Cs-137, Ag-108m, Sr-90, and tritium.

CurrentStatus Survey area OOL-09 potentially may be further impacted by continued decommissioning activities.

A soil sample location map (Figure 10) has been prepared to show the distribution of sampling locations in OOL-09. Two survey media were assessed in OOL-09, Asphalt and Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL. There are separate sets of Tables 1-4 for each survey media. All are evaluated as fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL,09 is presented at the end of Table 1 for each survey medium. The results are summarized below.

Asphalt: Mean SOF is 0.077.

Maximum SOF for a single asphalt sample is 0.153 (key# 2992) at the eastern boundary Minimum SOF for a single asphalt sample is 0.014 (key# 2990) at the southeast corner Soil: Mean SOF is 0.029.

Maximum SOF for a single soil sample is 0.205 (key# 3270) discarded septic tank residue.

Minimum SOF for a single soil sample is 0.004 (key# 3231) southern boundary The results of this investigation are presented on the attached spreadsheet Page 3 of 5

Historical Site Assessment and Classification Summary Survey Area Name: SE Construction Fill Area Designator: OOL-09 ClassificationStatement Based upon the historical use and radiological conditions associated with this survey area OOL-09 is identified as a Class 3 Area.

Page 4 of 5

Historical Site Assessment and Classification Summary Survey Area Name: SE Construction Fill Area Designator: OOL-09 Drawings 9699-FY-5A Figure 7-1A References

1. "Summary of Excavation Volumes for YNPS Construction Performed During the Time Period of Plant Operation," dated October 1997.

2. "Southeast Construction Fill Area, Soil and Ground Water Sampling at YNPS, Investigation Status Report," dated April 29, 1997.

3. YNPS Decommissioning Plan, Rev. 0.0.

4. "Radionuclides for Building Surfaces and Soil DCGL Determinations," YA-REPT-00-001-03 Page 5 of 5

t Page I of 1 Table 1 Sum of Fractions OOL.09 -- Asphalt Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 2992 AS98.30 AS98.30C 0.075 2992 AS98.30 AS98.30B 0.153 2990 AS510 AS510D 0.014 2990 AS510 AS510C - 0.052 2990 AS510 AS510B 0.087 2990 AS510 AS510A 0.083 Min 0.014 Mrax 0.153 Mean 0.077

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Table 2 Page I or i Statistical Data Summary - 0009 -- Asphalt Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 PCilg 0.404 0.159 0.157 0.657 0.403 Ag-108m pCi/g 0.000 Ag-i lOim pCilg 0.000 Am-241 pCilg 0.000 Bi-212 pCilg 0.550 0.550 0.550 0.550 Bi-214 pCilg 0.362 0.074 0.250 0.430 0.408 Ce-144 pCilg 0.000 Co-58 PCi/g 0.000 Co-60 pCi/g 0.157 0.101 0.083 0.326 0.105 Cs--134 pCilg 0.000 Cs-137 pCilg 0.618 0.570 0.176 1.631 - : 0.453 Fe-59 pCilg 0.000 K-40 pCilg 6.414 2.962 0.513 8.910 7.563 Mn-54 pCilg 0.000 Nb-95 pCilg 0.000 Np-239 pCilg 0.000 Pb-212 pCi/g 0.280 0.066 0.212 0.358 0.268 Pb-214 pCi/g 0.366 0.068 0.259 0.446 0.370 Ra-226 pCi/g 1.274 0.348 0.886 1.706 1.253 Ru-103 pCi/g 0.000 Ru-106 pCi/g 0.000 Sb-124 pCi/g 0.000 Sb-I 25 pCi/g 0.000 Zn-65 pCi/g 0.000 Zr-95 InCi/fz 0.000

a-Page IOr I Table 3 Summary of Detected Results Above Criteria OOL-09 -- Asphalt Yankee Nuclear Power Station Rowe, MA DCGLAAsphalt

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ac-228 6 6 pCi/g 0 0.66 Ag-108m 0 7 8.52 pCi/g 0 Ag-lOnm 0 7 pCilg 0 Am-241 0 7 44.35 pCilg 0 Bi-212 1 2 pCilg 0 0.55 Bi-214 7 7 pCilg 0 OA3 Ce-144 0 7 pCi/g 0 Co-58 0 7 pCi/g 0 Co-60 5 7 4.84 pCilg 0 0.33 Cs-134 0 7 6.71 pCi/g 0 Cs-137 6 7 12.24 pCi/g 0 1.63 Fe-59 0 7 pCi/g 0 K-40 7 7 pCilg 0 8.91 Mn-54 0 7 21.66 pCi/g 0 Nb-95 0 7 pCi/g 0 Np-239 0 1 pCilg 0 Pb-212 7 7 pCilg 0 0.36 Pb-214 7 7 pCi/g 0 0.45 Ra-226 4 4 pCi/g 0 1.71 Ru- 103 0 7 pCig 0 Ru-106 0 7 68.21 pCilg 0 Sb-124 0 7 pCi/g 0 Sb-125 0 1 37.73 pCi/g 0 Zn-65 0 7 pCi/g 0 Zr-95 0 7 pCi/g 0

Table 4 Pagel1 of 2 Rad OOL-09 - Asphalt (pCi/g)

Yankee Nuclear Power Station Rowe, MA:

Station (Key) AS510 (2990) ASS10 (2990) AS510 (2990) AS510 (2990) AS9830 (2992)

Sample ID AS51OA' ASSIOB AS510C AS510D AS9830A Date Sampled 7/29/1998 7/29/1998 7/29/1998 7/29/1998 7/23/1998 Ac-228 0.384 0.6573 0.4146 0.418 Ag-108m 0.01263 U -0.0002706 U -0.01864 U 0.0181 U. 0.001978 U Ag-1Orn 0.008197 U -0.01294 U 0.01299 U -0.001719 U 0.02804 U Am-241 0U OU OU OU OU Bi-212 0.3572 U Bi-214 0.4296 0.4078 0.4222 0.2908 0.4147 Ce-144 0.06582 U -0.07196 U -0.02846 U -0.04918 U -0.03168 U Co-58 -0.0101 U -0.006136 U -0.01974 U 0.003898 U -0.02053 U Co-60 0.3255 0.1047 0.1761 -0.01021 U 0.02069 U Cs-134 0.003502 U -0.01034 U -0.121 U 0.0201 U -0.02313 U Cs-137 0.1905 0.8046 0.197 0.1761 0.03282 U Fe-59 -0.07479 U -0.01817 U -0.02875 U -0.0618 U 0.03927 U K-40 7.563 6.245 8.233 0.5129 8.555 Mn-54 -0.02582 U -0.002038 U -0.004596 U 0.007047 U -0.01123 U Nb-95 -0.001789 U -0.00352 U -0.001238 U -0.03022 U 0.02137 U Np-239 1.744 U.

Pb-212 0.2156 0.3483 0.3576 0.3387 0.268 Pb-214 0.4461 0.3703 0.4224 0.3485 0.3023 Ra-226 1.706 1.142 1.364 0.8859 Ru-103 -0.009834 U 0.01865 U -0.004253 U 0.02254 U -0.004417 U Ru-106 0.1549 U 0.06772 U -0.02678 U -0.05845 U 0.03019 U Sb-124 -0.001107 U 0.02904 U 0.04595 U 0U -0.01078 U Sb-125 0.08936 U Zn-65 -0.04493 U -0.08155 U 0.07797 U 0.06088 U -0.02091 U Zr-95 0.01915 U -0.01582 U 0.03313 U -0.006049 U 0.004132 U SOF 0.083 0.087 0.052 0.014 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Asphalt Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 2 Rad OOL-09 - Asphalt (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) AS98.30 (2992) AS98.30 (2992)

Sample ID AS98.30B AS98.30C' Date Sampled 7/23/1998 7/23/1998 Ac-228 0.1566 0.3908 Ag-108m -0.001749 U -0.03313 U Ag-110m 0.01078 U 0.001663 U Am-241 0U 0U Bi-212 0.5495 Bi-214 0.2503 0.3153 Ce-144 0.04494 U -0.006748 U Co-58 -0.01057 U -0.0002542 U Co-60 0.09645 0.08253 Cs-134 0.004986 U -0.1159 U Cs-137 1.631 0.7089 Fe-59 0.009721 U 0.02749 U K-40 4.88 - 8.91 Mn-54 -0.01477 U -0.00647 U Nb-95 -0.001708 U . 0.002548 U Np-239 Pb-212 0.2119 0.2226 Pb-214 0.2594 0.4161 Ra-226 Ru-103 -0.0123 U 0.004078 U Ru-106 -0.01699 U -0.02534 U Sb-124 0.01096 U 0.001422 U Sb-125 Zn-65 0.02331 U -0.1226 U Zr-95 -0.01461 U 0.0109 U SOF 0.153 0.075 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Asphalt Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Page I of I Table 1 Sum of Fractions OO1,9 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 3230 TS499 TS499B - - 0.018 208 0G008-002 OG008GUFDO02 -0.015 210 0G008-004 OGO08GUFDO04 0.007 211 0G008-005 OGO08GUFU005 0.009 212 OG008-006 0G008GUFDO06 0.007 213 OG008-007 OG008GUFDO07 0.013 214 0G008-008 OGO08GUFDO08 0.038 216 OGO08-010 OG008GUFUO1O 0.012 217 OG0G08-011 OGO08GUFUOI I 0.008 219 0G008-013 OG008GUFDO13 0.013 207 0G008-001 0GO08GUFDOO1 0.056 3230 TS499 TS499A 0.044 3272 TS559 TS559 0.019 3231 TS500 TS500 0.004 3239 TS511 TS511 0.025 3240 TS512 TS512 0.010 3241 TS513 TS513 0.013 3242 TS514 TS514 0.006 3243 TS515 TS515 0.113 3244 TS516 TS516 0.021 3245 TS517 TS517 0.043.

3246 TS518 TS518 0.013 3271 TS558 TS558 0.005 3229 TS498 TS498 0.005 Min 0.004

• Max 0.113 Mean 0.022

Table 2 Page I of 1 Statistical Data Summary - OOL09 -- Soil Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 PCilg 28 28 0.816 0.188 0.425 1.270 0.805 Ag-108m pCilg 0 28 0.000 Ag-I lOm pCilg 0 28 0.000 Am-241 PCilg 0 28 0.000 Ba- 133 pCilg 0 2 0.000 Bi-212 pCilg 19 24 0.916 0.277 0.549 1.444 0.846 Bi-214 pCilg 25 25 0.534 0.205 0.346 1.444 0.496 Ce- 144 pCi/g 1 28 0.306 0.306 0.306 0.306 Co-S8 pCilg 0 28 0.000 Co-60 pCilg 3 28 0.149 0.132 0.062 0.301 0.084 Cs-134 PCilg 1 28 0.124 0.124 0.124 0.124 Cs-136 pCilg 0 1 0.000 Cs-137 pCi/g 22 28 0.219 0.189 0.048 0.686 0.149 Eu- 152 pCilg 0 4 0.000 Fe-59 pCilg 0 28 0.000 1-132 pCilg 1 1 11.420 11.420 11.420 11A20 1-133 pCilg 0 1 0.000 K-40 PCilg 27 28 16.921 4.379 3.296 22.820 18.440 La-140 pCilg 0 1 0.000 Mn-54 pCilg 0 28 0.000 Nb-95 pCilg 4 28 0.042 0.008 0.033 0.053 0.041 Np-239 pCilg 0 2 0.000 Pb-212 pCilg 28 28 0.809 0.191 0.239 1.273 0.785 Pb-214 pCilg 28 28 0.554 0.233 0.310 1.644 0.502 Ra-226 pCilg 18 24 1.490 0.458 1.017 3.077 1.452 Ru- 103 pCilg 2 28 0.037 0.000 0.037 0.037 0.037 Ru-106 pCilg 2 28 0.336 0.025 0.318 0.354 0.336 Sb-124 pCilg 0 28 0.000 Sb-125 pCilg 0 4 0.000 TI-208 pCilg 25 25 0.769 0.188 0.317 1.232 0.769 Y-88 pCilg 0 1 0.000 Zn-65 pCilg 0 28 0.000 Zr-95 pCilg 4 28 0.059 0.012 0.041 0.067 0.063

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Pagel or I Table 3 Summary of Detected Results Above Criteria

-OOL-09 -- Soil Yankee Nuclear Power Station Rowe, MA DCGLSoil

1. Sample Criterion # Detects Above Maximum Parameter # Detects - Results Concentration Units  : Criterion -- Detected Ac-228 28 28 ' ' Ci/g 0 1.27

. . j * -,.

Ag-108m 0 28 8.52 pCi/g 0 Ag-I l Om 0 28 pCi/g 0 Am-241 0 28 44.35 pCi/g 0 Ba-133 0 2 pCi/g 0 Bi-212 19 24 pCi/g 0 1.44 Bi-214 25 25 .- pCi/g 0 1.44 Ce-144 1 28 pCi/g 0 0.31 Co-58 0 28 pCi/g 0 Co-60 3 28 4.84 pCi/g 0 0.30 Cs-134 1 28 6.71 pCi/g 0O. 0.12 Cs-136 0 1 pCi/g 0 Cs-137 22 28 12.24 pCi/g 0 0.69 Eu- 152 0 4 12.06 pCi/g 0 Fe-59 0 28 pCi/g 0 I-132 1 1 pCi/g 0 11.42 1-133 0 1 pCi/g 0 K-40 27 28 pCi/g 0 22.82 La-i40 0 I 7 pCi/g 0 Mn-54 0 28 21.66 ' pCilg 0 Nb-95 4 28 pCilg 0 0.05 Np-239 0 2 pCi/g 0

-pCilg Pb-212 28 28 pCi/g 0 1.27 Pb-214 28 28 pCi/g 1.64 0

Ra-226 18 24 3.08 0

Ru-103 2 28 pCi/g

• 0.04 0

Ru- 106 2 -28 68.21 pCi/g 0.35 0

Sb-124 0 28 - pCi~g 0

Sb-125 0 4 37.73 pCi/g 0

TI-208 25 25 pCi/g * ? 1.23 0

Y-88 0 I. pCi/g Zn-65 0 28 ..- pCilg Zr-95 4 28 pCi/g 0 0.07

. ./

a-Table 4 Page I of 6

, Rad

. - OOL-09 -7 Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G008-001 (207) 0G008-002 (208) 0G008-003 (209) 0G008-004 (210)

Sample ID OGO08GUFDO01 OGO08GUFDO02 OGO08GUFDO03 OG008GUFDO04 Date Sampled 10/26/1998 . 10/26/1998 . 10/26/1998 . ji10/26/1998 Ac-228 0.7402 0.8277 1.028 0.7987 Ag-108m -0.006749 U 0.01 168 U -0.005195 U -0.009347 U Ag-1 10m -0.01523 U -0.01732 U 0.01257 U -0.02803 U Am-241 0U 0U 0U OU Ba-133 -0.0461 U Bi-212 0.8463 0.8082 0.6486 Bi-214 0.4403 0.4313 0.4429 0.5555 Ce-144 -0.0767 U -0.01453 U 0.1311 U -0.02957 U Co-58 0.002203 U -0.004964 U 0.00146 U 0.00276 U Co-60 0.007836 U 0.01681 U -0.008651 U 0.006842 U Cs-134 -0.02564 U 0.03028 U -0.0 1558 U -0.01155 U Cs-136 0.1279 U Cs-137 0.6864 0.18551-0.00716 U 0.08258 Eu-152 Fe-59 -0.03707 U 0.02917 U -0.0546 U -0.02338 U 1-132 1-133 K-40 18.69 19.01 17.62 19.28 La-140 Mn-54 0.006341 U -0.00107 U 0.002922 U -0.0002188 U Nb-95 -0.01126 U -0.0009205 U -0.004976 U 0.01287 U Np-239 Pb-212 0.772 0.6268 1.06 0.8712 Pb-214 0.4241 0.4985 0.5154 0.4685 Ra-226 1.415 1.214 0.7814 U Ru- 103 -0.01835 U -0.01297 U 0.02404 U -0.01489 U Ru-106 0.04495 U 0.07715 U 0.139 U 0.1766 U Sb-124 0.005516 U 0.02078 U -0.000000002066 U 0.00107 U Sb-125 -0.1526 U TI-208 0.6174 0.7341 0.9717 0.8326 Y-88 Zn-65 -0.02904 U -0.03569 U 0.007981 U -0.1068 U Zr-95 0.04566 U 0.02101 U 0.06004 0.06709 SOF 0.056 A 0.015 .5. .5.

0.007 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 6 Rad OOL-09 - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) G0G008-006 -(212) OG008-007 (213) - OG008-008 (214) ' 0G008-009 (215)

Sample ID OGO08GUFD006' OG0O08GUFDO07 OGO08GUFDO08 " OGO08GUFDO09 Date Sampled 10/27/1998 '10/27/1998  : 10/27/1998 ' 10/27/1998 Ac-228 1.0121 0.7498 0.8956 0.9494 Ag-108m 0.007849 U 0.008261 U -0.01 12 U -0.007275 U Ag-IlOm -0.01'176 U -0.02005 U -0.006699 U 0.007962 U Am-241 0U OU; OU OU Ba-133 0.1276 U Bi-212 0.6068 0.4512 U 1.019 0.9049 Bi-214 0.4698 0.3829 0.5003 0.4986 Ce-144 0.2012 U 0.3055 -0.1395 U 0.04883 U Co-58 -0.02202 U 0.01303 U 0.005592 U 0.01073 U Co-60 -0.01315 U -0.007252 U 0.02792 U 0.0105 U Cs-134 0.00555 U -0.06057 U -0.004103 U 0.04283 U Cs-136 Cs-137 0.08847 0.1567 0.462210.02414 U Eu-152 0.2813 U Fe-59 0.01024 U 0.04485 U -0.03266 U -0.04823 U 1-132 1-133 K-40 18.67 20.86 18.44 19.82 La-140 Mn-54 -0.02002 U 0.01046 U -0.003678 U 0.0007372 U Nb-95 -0.02041 U -0.01696 U -0.003767 U -0.01317 U Np-239 Pb-212 0.8541 I 0.7836 0.9332 1 0.7861 Pb-214 0.5463 . ; 0.5326 0.6023 ' 0.5474 Ra-226 1.472 1.048 1.538 1.017 Ru-103 0.005537 U -0.008193 U -0.008165 U -0.008725 U Ru-106 0.1507 U 0.0649 U 0.12 U 0.101 U Sb-124 0.008666 U 0.001675 U 0.006228 U -0.039 U Sb-125 -0.1271 U TI-208  ; 0.7456 0.8372 ' 0.7673 Y-88 Zn-65 -0.08087 U -0.005184 U 0.01697 U -0.03032 U Zr-95 0.008227 U ' . 0.04064 0.03954 U 0.04788 U SOF 0.0071.  ; '. 0.013 0.038 I

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed * -

a-Table 4 Page 3 of 6 Rad OOL-09 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G008-012 (218)- OG008-013 (219) O0G008-005 (211) . 0G008-010 (216)

Sample ID OG008GUFD012 OGO08GUFDO13 OGO08GUFU005 OGO08GUFUO10 Date Sampled 10/27/1998 10/27/1998 110/27/1998 10/27/1998 Ac-228 0.9451 0.9171 0.7527 0.8597 Ag-108m -0.01569 U -0.02584 U -0.03811 U -0.027 U Ag-110m 0.02908 U 0.01538 U 0.0166 U -0.05442 U Am-241 0U.. 0U OU OU Ba-133 Bi-212 1.444 1.151 0.5486 1.277 Bi-214 ' 0.5213 0.5689 0.5838 0.6894 Ce-144 0.1063 U -0.1433 U 0.02784 U -0.09709 U Co-58 -0.03002 U -0.01 109 U 0.01976 U -0.002888 U Co-60 -0.02314 U -0.01782 U -0.01315 U -0.009566 U Cs-134 -0.01675 U -0.006106 U -0.007399 U -0.02478 U Cs-136 Cs-137 0.01301 U 0.09197 0.1058 0.1419 Eu-152 0.4727 U 0.1414 U Fe-59 0.002188 U -0.01811 U 0.01868 U -0.01053 U 1-132 1-133 K-40 21.48 20.05 19.82 19.51 La-140 Mn-54 0.02201 U -0.008416 U -0.0117 U -0.02162 U Nb-95 0.005289 U 0.005053 U 0.02363 U 0.02539 U Np-239 0.4135 U Pb-212 0.8945 1.031 0.7646 0.7604 Pb-214 0.5675 0.673 0.5188 0.5137 Ra-226 1.521 1.581 0.7853 U 1.854 Ru-103 -0.01506 U -0.005315 U 0.01334 U 0.002074 U Ru-106 -0.121 U 0.354 0.05526 U -0.4384 U Sb-124 0.01765 U -0.01611 U 0.02085 U 0.03554 U Sb-125 TI-208 0.9502 1.068 0.7469 0.751 Y-88 Zn-65 -0.1032 U -0.1576 U -0.07569 U -0.004889 U Zr-95 0.01214 U 0.06639 0.02037 U 0.04553 U SOF 0.013 0.009 0.012 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 4 of 6 Rad OOL-09 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA:

Station (Key) OG008-011'(217) TS497 (3228) TS498 (3229) TS499 (3230) TS499 (3230) -

Sample ID OGO08GUFU011 TS497 - T S498 TS499A ' TS499B Date Sampled 10/27/1998 ' 7/7/1998 7/7/1998 11/7/1997 7/711998 Ac-228 1.23 ' 1.27 O.17669 :0.425 0.7371 I

Ag-108m 0.02739 U' -0.004382 2U 0.02269 U 0.01402 U -0.01561 U Ag-I IOim -0.07714 U 0.006567 U -0.02594 U 0.000272 U -0.002035 U Am-241 0U OU.' OU OU OU Ba-133 Bi-212 0.599 U 1.376 1.037 0.2812 U' 0.8078 Bi-214 0.5745 1.444 0.6384 0.458 Ce-144 -0.1961 U -0.1472 U -0.03261 U 0.04868 U 0.0359 U Co-58 0.001065 U -0.011991U -0.0309 U -0.01635 U 0.01559 U Co-60 0.0189 U -0.008674 iU -0.03045 U 0.003212 U -0.000000006593 U i Cs-134 -0.1204 U -0.0462 UI -0.00694 U 0.02532 U 0.1236 Cs-136 Cs-137 0.09385 0.02576 U -0.01867 U. 0.5348 0.03101 U Eu-152 0.5417 U Fe-59 0.04661 U -0.06656 U -0.06294 U 0.04499 U 0.06363 U

[-132 1-133 0.6987 U, K-40 22.82 9.503 17.64 8.521 20.11 La-140 0.09433 U Mn-54 -0.0165 U -0.01643 U 0.002138 U -0.002377 U 0.001212 U Nb-95 0.008309 U 0.01464 U -0.01336 U 0.005096'U 0.04154 Np-239 Pb-212 1.067 , 1.273 0.8163 , 0.239 0.8137 Pb-214 0.6641 1.644 0.8045 0.3104 0.5279 Ra-226 , 3.077 1.208 1.456 Ru-103 -0.008568 U 0.009034 U 0.006398 U -0.004095 U 0.003952 U Ru-106 0.04338 U -0.1985 U  : 0.3181 0U 0.05933 U Sb-124 -0.01541 U -0.02261 U -0.05435 U 0.01422 U 0.02967 U Sb-125 Tl-208 0.8034 1.232 0.8476 0.3171 0.7817 Y-88 Zn-65 -0.01658 U 0.03773 U -0.0279 U -0.03899 U -0.1397 U Zr-95 -0.04142 U 0.01098 U 0.006428 U 0.01194 U -0.002581 U SOF 0.008  ; I 0.005 0.044 :- 0.018 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

a-Table 4 Page 5 of 6 Rad OOL-09 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) TS500 (3231) TS511 (3239) TS512 (3240)' TS513 (3241) TS514 (3242) TS515 (3243)

Sample ID TS500 - TS511- TS512 TS513. . TS514 TS515 Date Sampled 7/7/1998. 7/30/1998 7/30/1998 7/30/1998 7/30/1998 7/30/1998 .

Ac-228 - 0.4688 0.8071 0.8241 0.8024 0.8426 -: 0.551 Ag-108m 0.01768 U -0.003617 U 0.01522 U 0.01818 U -0.005073 U 0.009511 U Ag-110ml -0.01958 U 0.003764 U 0.00146 U 0.03011 U -0.007582 U -0.006528 U Am-241 0U OU OU OU OU OU Ba-133 Bi-212 0.6464  ; 1.158 0.6396 0.6754 1.113 Bi-214 0.5035 0.3464 0.4766 0.468 Ce-144 0.08169 U -0.09861 U -0.05716 U -0.1306 U 0.1635 U -0.2697 U Co-58 0.02353 U -0.0006185 U -0.006957 U -0.005183 U 0.02442 U -0.01995 U' Co-60 0.00773 U 0.02739 U -0.03906 U 0.01546 U 0.007238 U 0.3011 Cs-134 -0.09483 U 0.02516 U 0.0122 U 0.01357 U 0.004826 U 0.01509 U Cs-136 Cs-137 0.04782 0.3026 0.1168 0.1574 0.07954 0.6154 Eu-152 Fe-59 0.01717 U 1-0.0412 U 0.006659 U 0.03372 U -0.02879 U -0.06689 U 1-132 1-133 K-40 11.92 16.1 17.58 3.29610.3431 U 13.06 La-140 Mn-54 -0.03063 U 0.02008 U -0.01278 U 0.004678 U 0.01103 U -0.006236 U Nb-95. 0.03324 -0.007946 U 0.001433 U 0.01626 U 0.04134 U 0.0132 U Np-239 -1.112 U Pb-212 0.5767 0.7492 0.7662 0.7037 0.9512 0.6171 Pb-214 -0.39 0.5059 0.4706 0.4576 0.4461 0.4493 Ra-226 0.7882 U 0.8928 U 1.058 1.007 U 1.444 1.448 Ru-103 0.01981 U -0.007704 U 0.01831 U  : 0.03732 0.03704 -0.01258 U" Ru-106 -0.1634 U -0.07475 U 0.2524 U -0.1182 U 0.07691 U 0.06621 U Sb-124 OU -0.008233 U -0.003992 U 0.01052 U 0.001404 U OU Sb-125 TI-208 0.4028 0.6633 0.8424 0.7694 0.8213 0.5433 Y-88 0.02468 U Zn-65 0.0452 U 0.04268 U 0.1027 U -0.07009 U 0.02991 U 0.09633 U Zr-95 0.02959 U -0.005276 U 0.01765 U -0.01712 U 0.02687 U 0.004827 U SOF 0.004 0.025 0.01 0.013 0.006 0.113 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 6 of 6 Rad

, OOL-09 -- Soil (pCilg)

Yankee Nuclear Power Station Rowe, MA Station (Key) TS516 (3244) TS517 (3245) : TS518 (3246) TS558 (3271) TS559 (3272)

Sample ID TS516 TS517 TS518 TS558 TS559 Date Sampled 7/30/1998 7/30/1998 I 7/30/1998 9/10/1998 9/10/1998 Ac-228 0.6751 -0.7138 i 0.6403  ! 0.7365 0.8863 Ag-108m 0.01861 U -0.005473 U -0.003393 U -0.019 U 0.01606 U' Ag-IlOi -' 0.01276 U -0.0 1879 U 0.009278 U 0.02796 U OU Am-2i 1 OU OU, OU' OU OU .

Ba-133 Bi-212 0.701 -0.01944 U 0.4543 U ,

Bi-214 0.4176 0.4959 ;0.394 0.5523 0.4942 Ce-144 -0.0118 U 0.1208 U. 0.06059 U -0.001 109 U 0.124 U Co-58 -0.01888 U 0.003775 U -0.0O1419 U -0.003937 U -0.01331 U Co-60 0.06243 0.08351 0.01233 U 0.004692 U 0.02477 U Cs-134 0.00216 U 0.009924 U -0.01949 U -0.02333 U -0.001759 U Cs-136 Cs-137 0.09752 0.3148 0.1597 0.05759 0.2357 Eu-152 Fe-59 -0.01951 U 0.02987 U -0.04401 U -0.02018 U -0.03223 U 1-132 11.42 1-133 K-40 15.08 15.42 15.63 18.84 18.1 La-140 Mn-54 0.025 U -0.03527 U -0.009108 U 0.01352 U 0.021 U Nb-95 0.004035 U 0.01092 U 0.00557 U 0.03997 - 0.0529 Np-239 Pb-212 0.6295 0.7126 0.7765 0.9191 0.9108 Pb-214 0.4989 0.4859 0.4923 0.4674 0.4822 Ra-226 0.6657 U ' 1.482 -; -1.23 1.75 Ru-103 -0.01181 U 0.01897 U  ; -0.01538 U 0.0005762 U -0.01583 U-Ru-106 -0.02108 U -0.2032 U -0.02325 U 0.1854 U 0.2281 U Sb-124 0.02024 U -0.0276 U 0.01467 U 0.01209 U OU Sb^125 -0.0184 U -0.02834 U Tl-208 0.65 0.7249 0.7947 Y-88 Zn-65 -0.03902 U -0.004833 U -0.07575 U 0.06983 U -0.06053 U Zr-95 0.009685 U OU -0.006137 U 0.02067 U 0.01034 U SOF 0.021 0.043 0.013 0.005 * ' 0.019

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7 , I I : , -,  ;

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i :,  :,

I I . . 7  :  : : , , I

- . I .  :

I I . I :- . -

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

OOL-09 Mitigated Areas l Location Sample# Date GV SOF Disposition DsoionNcde Nuclide (pCUgm) FracinfDCGLSOF DCGL _____

sidewall of CB5 pit composite TS-497 7-Jul-98 ND AL l _ _____

sidewall of Al pit composite TS-498 7-Jul-98 ND AL sidewall of Al pit composite TS-499 7-Jul-98 ND AL .  :

sidewall of A2 pit composite TS-500 7-Jul-98 ND AL ,

Area B at drums discrete TS-501 7-Jul-98 ND AL . .

midway on SE bank grab TS-51 .. 30-Jul-98 0.040 AL Cs- 37 3.026E-01 0.025 0.025-midway on SE bank grab TS-512 30-Jul-98 0.020 AL Cs-137 1.168E-01 0.010 0.010 midway on SE bank grab TS-513 30-Jul-98 0.020 AL Cs-137 1.574E-01 0.013 0.013 midway on SE bank grab TS-514 30-Jul-98 ND AL midway on SE bank grab TS-515 30-Jul-98 AL . .

midway on SE bank grab TS-516 30-Jul-98 <MDA AL midway on SE bank grab TS-517 30-Jul-98 : 0.040 AL Cs-137 3.148E-01 0.026 0.026 midway on SE bank grab TS-518 30-Jul-98 0.020 AL Cs-137 1.597E-01 0.013 0.013 septic tank residue, asphalt & quickdry, solids TZ-552 31-Aug-98 0A0 TS Co-60 9.178E-01 0.190 0.205

__________________Cs-i 37 1.850E-01 0.015 barrel in woods at 232 stake composite. TS-558 - 10-Sep-98 -- ND -AL .

barrels at N edge of clearing composite - TS-559 10-Sep-98 0.030 AL Cs-137 2.357E-01 0.019 0.019 UNK -unknown -___ DCGL (pCi/gm AB - as area backfill Nuclide 25 mr/yr 10 mr/yr ABC - ABC storage area Ag-108m 8.521 E+00 3.408E+00 AL - as left Co-60 4.838E+00 1.935E+00 ALAR - as left after remediation Cs-1 34 6.706E+00 2.682E+00 FR - further remediation Cs-137 I1.224E+01 4.896E+00 RD - rad disposal TS - temporary storage tk Page 1 of 1

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II

Historical Site Assessment and Classification Summary Survey Area Name: ISFSI Pad Access & Exclusion/Buffer Zone Designator OO-1O0 Survey Area Description Survey area 00L-10 consists of land area that was established as the ISFSI haul road, the ISFSI access and the exclusion/buffer zone' around the ISFSI. Survey area OOL- 10 contains about 8408 square meters of soil surface area.

Survey area OOL-10 is bounded by OOL-02, NOL-04, NOLO-3 and OOL-i lon the north, TBN-01, NOL-06, NOL-05, OOL-08 and 00L-09 on the east, OOL-08 on the south and OO-08 and OOL-02 on the west.

Sub-surface systems that traverse or connect within '00L- 0 include:,

- The west storm drain system

• Abandoned street lighting electrical cable.

• Electrical grounding cables

• Electrical duct trays

• Potable water lines

• Security lighting electrical conduits.

Items of note located within or adjacent to survey area obL; IO include:

• Soil piles from 'construction of ISFSI haul 'road.'

• Rubble pile from SIDG building demolition.

• Storage container for fuel transfer process equipment

• Access point to OOL-09, SE Construction Fill Area.

• Power supply to the ISFSI.  ;

• Security structure for the ISFSI Page I of 5

a-Historical Site Assessment and Classification Summary Survey Area Name: ISFSI Pad Access & Exclusion/Buffer Zone Designator: OOL-10 Survey Area History The portion of the YNPS site identified as survey area OOL,10 was established to support transfer of the spent fuel to the ISFSI. While fuel transfer was in progress this area was posted and controlled as an RCA. After fuel transfer was complete the area was surveyed in order to de-post the RCA. There are no radioactive systems present in OOL,

10. Survey area OOLl10 was used for transport of radioactive material. It was not used for storing radioactive material or processing or packaging radioactive waste.

Surveys Area 00L-10 contains an accumulation of soil and demolition debris. The soil excavated during the construction of the haul road to the ISFSI pad. The demolition debris came from the demolition of the SIDG building, NSY-03. The SIDG building was surveyed prior to demolition (Ref 1).

Survey area 00- 10 is likely to be minimally impacted by low levels of radioactivity as a result of soil and material storage and surface water run-off from out of the RCA.

Modifications performed at the YNPS site in support of decommissioning that changed the configuration of OOL-IO include:

• Deposition of the soil from ISFSI haul road construction

• Deposition of the SIDG building demolition debris.

Scoping/Characterization Soil sampling was performed on the soil from the ISFSI haul road area prior to excavation.

Decommissioning No decommissioning activities have been performed for survey area OOL 10.

Page 2 of 5

Historical Site Assessment and Classification Summary Survey Aiea Name: ISFSI Pad Access & Exclusion/Buffer Zone Designator: OOL-10 Findings Survey area OOL- 0'is a land area that is located in the non-RCA'portion of the site.

Survey area OOL- IOis assumed to be minimally impacted the transport of the spent fuel.

Survey area OOL-10 is likely to contain residual radioactivity concentrations at a fraction of DCGL.

The radionuclide mix likely to be present in OOL-10 includes all radionuclides identified in the radioactive systems of the plant (Ref 2). The primary radionuclides of concern for survey area OOL-I0 are Co-60, Cs-137, Ag-108m, Sr-90 and tritium.

CurrentStatus Survey area OOL- 0 potentially may be further impacted by continued decommissioning activities.

A soil sample location map (Figure 11) has been prepared to show the distribution of sampling locations in OOL-10. Only samples representative of soils still present are included on the map (samples of soils representative of soils removed during remediation activities are not presented). Three survey media were assessed in OOL-10, Asphalt, Sod and Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL. There are separate sets of Tables 1-4 for each survey media. All are evaluated as fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL-10 is presented at the end of Table 1 for each survey medium. The results are summarized below.

Asphalt: Mean SOF is 0.023.

Maximum SOF for a single asphalt sample is 0.033. (key# 2994) in t1h road west of the SW corner of the SIDG building.

Minimum SOF for a single asphalt sample is 0.013. (key# 2994)

Sod: Mean SOF is 0.035.

Maximum SOF for a single sod sample is 0.053. (key# 647) in road west of SW corner of TB.

Minimum SOF for a single sod sample is 0.016. (key# 645) in road west of SW corner of TB.

Page 3 of 5

Historical Site Assessment and Classification Summary Survey 'Area Name: ISFSI Pad Access & Exclusion/Buffer Zone Designator: OL-l10 Soil: Mean SOF is 0.027.

Maximum SOF for a single soil sample is 0.391. (key# 661) south of SW comer of TB.

Minimum SOF for a single soil sample is 0.003. (key# 158, 159, 161, 3194) soith of SW corner of TB.

ClassificationStatement Based upon the historical use and radiological conditions associated with this survey area OOL-l0 is identified as a Class 2 Area.

Page 4 of 5

Historical Site Assessment and Classification Summary Survey Area Name: ISFSI Pad Access & Exclusion/Buffer Zone Designator: OOL-10 Drawings 9699-FY-5A Figure 7-1A References

1. SIDG Building Survey.

2. Radionuclides for Building Surfaces and Soil DCGL Determinations YA-REPT 001-03 3.

4.

5.

Page 5 of 5

a-Page 1 ot 1 Table 1 Sum of Fractions QOL-10 -- Asphalt Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum or Fractions 2994 AS98.45 AS98.45C 0.013 2994 AS98.45 AS98.45B 0.033 2994 AS98.45 AS98.45A 0.024 Mmin . 0.013 Max 0.033 Mean 0.023

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Table 2 Page 1 Or I Statistical Data Summary - OOL.10 -- Asphalt Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCilg 0.459 0.142 0.364 0.622 0.390 Ag-108m pCi/g 0.028 0.028 0.028 0.028 Ag-lOim pCi/g 0.000 An-241 pCi/g 0.000 Bi-212 pCi/g 0.395 0.395 0.395 0.395 Bi-214 pCi/g 0.392 0.082 0.323 0.483 - 0.369 Ce-144 pCi/g 0.000 Co-58 pCi/g 0.000 Co-60 pCi/g 0.107 0.039 0.065 0.143 0.114 Cs-134 pCi/g 0.000 Cs-137 pCi/g 0.000 Fe-59 pCi/g 0.000 K-40 pCi/g 9.431 0.311 9.106 9.725 9.462 Kr-85 pCi/g 0.000 Mn-54 pCi/g 0.000 Nb-95 pCi/g 0.030 0.030 0.030 0.030 Pb-212 pCi/g 0.445 0.092 0.349 0.533 0.452 Pb-214 pCi/g 0.355 0.046 0.303 0.388 0.374 Ra-226 pCi/g 0.902 0.902 0.902 0.902 Ru-103 pCi/g 0.000 Ru-106 pCi/g 0.000 Sb-124 pCilg 0.000 TI-208 pCi/g 0.460 0.196 0.321 0.598 0.460 Zn-65 pCi/g 0.000 Zr-95 vCi/gI 0.000

E3-Pagelof 1 Table 3 Summary of Detected Results Above Criteria OOL-I0 -- Asphalt Yankee Nuclear Power Station Rowe, MA DCGLAAsphalt

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1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ac-228 3 pCi/g 0.62 Ag-108m 3 8.52 pCi/g 0.03 Ag- lOnm 3 pCi/g Amn-241 3 44.35 pCi/g Bi-212 I pCi/g 0.39 Bi-214 3 pCi/g 0.48 Ce- 144 3 pci/g Co-58 4 pCi/g Co-60 4 4.84 pCi/g 0.14 Cs-134 4 6.71 pCi/g Cs-I 37 4 12.24 pCi/g Fe-59 3 pCi/g K-40 3 pCi/g 9.73 Kr-85 I pci/g Mn-54 3 21.66 pCi/g N'b-95 3 pCi/g 0.03 Pb-212 3 pCi/g 0.53 Pb-214 3 pCi/g 0.39 Ra-226 I pCi/g 0.90 Ru- 103 3 pCi/g Ru-106 3 68.21 pCi/g Sb-124 3 pCi/g TI-208 2 pCi/g 0.60 Zn-65 3 pCi/g Zr-95 3 pci/g

'1

Table 4 Page I of I Rad OOL-10 -Asphalt (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) AS98.45 (2994) AS98.45 (2994) AS98.45 (2994) IR-36 (433)

Sample ID AS98.45A AS98.45B AS98.45C IRAS-36 Date Sampled 10/28/1998 10/28/1998 10/28/1998 5/20/1993 Ac-228 0.3636 0.6223 0.3904 Ag-108m -0.01105 U 0.028 -0.003594 U Ag-110 n -0.001466 U -0.02584 U 0.03706 U Am-241 0U OU 0U Bi-212 0.3945 Bi-214 0.3228 0.3691 0.4827 Ce-144 0.02256 U 0.1566 U -0.1652 U Co-58 -0.01766 U -0.008982 U -0.002089 U 0.092 UM Co-60 0.1144 0.1428 0.0648 0.078 UM Cs-134 0.01524 U -0.01884 U 0.004858 U 0.08 UM Cs-137 0.02138 U 0.02102 U -0.02683 U 0.106 UM Fe-59 -0.01188 U 0.006043 U -0.0391 U K-40 9.106 9.462 9.725 Kr-85 0.2351 U Mn-54 -0.01439 U 0.003365 U 0.01272 U Nb-95 0.03002 0.004423 U 0.02339 U Pb-212 0.3493 0.5327 0.4517 Pb-214 0.3028 0.388 0.3736 Ra-226 0.9022 Ru-103 -0.002068 U 0.001823 U -0.005304 U Ru-106 0.1101 U -0.05484 U -0.02471 U Sb-124 0U 0.005636 U -0.005297 U TI-208 0.3212 0.5978 Zn-65 -0.0272 U 0.06448 U -0.1042 U Zr-95 -0.01872 U 0.02252 U 0.01171 U SOF 0.024 0.033 0.013 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Asphalt Basic Data 12/15/2003 Blank results indicate chemical not analyzed

va-Pagel of I Table I Sum of Fractions OO-10O--Sod Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 649 IA-66 IATZ-66 0.037 647 IA-65 IATZ-65 0.053 645 IA-64 IATZ-64 0.016 Min 0.016 Max 0.053 Mean 0.035

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Table 2 Page 1 of I Statistical Data Summary - OO-1.O -- Sod Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum . Median Results Co-58 pCig 0 5 0.000 Co-60 pCi/g 1 5 0.256 0.256 0.256 0.256 Cs-134 pCilg 0 5 0.000 Cs-137 pCi/g 2 5 0.326 0.185 0.195 0.457 0.326

Pagel of I Table 3 Summary of Detected Results Above Criteria OOLrIO--Sod Yankee Nuclear Power Station Rowe, MNIA DCGLSod

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Co-58 0 5 pCi/g 0 Co-60 1 5 4.84 pCi/g 0 0.26 Cs-134 0 5 6.71 pCilg 0 Cs-137 2 5 12.24 pCi/g 0 0.46

Table 4 Page 1 of I Rad OOL- -',Sod (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) IA-62 (641) IA-63 (643) IA-64 (645) IA-65 (647) IA-66 (649)

Sample ID. IATZ-62 IATZ-63 ., IATZ-64 IATZ-65 IATZ-66 Date Sampled 6/7/1993 6/7/1993 6/4/1 993 6/4/1993 6/7/1993 Co-58 0.069 UM 0.11 UM 0.112 UM 0.106 UM 0.092 UM Co-60 0.181 UM 0.253 UM 0.162 UM 0.256 0.148 UM Cs-134 0.103 UM 0.089 UM 0.106 UM 0.103 UM 0.084 UM Cs-137 0.15 UM 0.153 UM 0.195 0.151 UM 0.457 SOF - ._,_i_0.016 0.053 0.037 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Sod Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Pagel of 2 Table 1 Sum of Fractions OOL1 0 --Soil Yankee Nuclear Power Station Rowe; MA I

Station Key Station Sample ID Sum Of Fractions 663 IA-233 IATS-233A 0.004 134 0G007-005 0G007GAFD005 0.011 135 0G007-006 OG007GAFD0O06 0.006 139 0G007-010 OGO07GAFDOIO 0.004 140 0G007-011 OGO07GAFDOI1 0.007 143 0G007-014 OGO07GAFDO14 0.006 156 0G007-028 OG007GAFD028 0.005 157 0G007-029 OG007GAFDO29 0.004 158 0G007-030 OGO07GAFDO30 0.003 159 0G007-031 OGO07GAFDO31 0.003 161 0G007-033 0G007GAFDO33 0.003 164 0G007-036 OGO07GAFDO36 0.019 631 IA-27 IATS-27 0.011 649 IA-66 IATS-66 0.023 132 0G007-003 OGO07GAFDO03 0.007 3194 TS405 TS405D 0.089 3411 YG001.5 YG001.5A 0.008 3410 YGO01.4 YG001.4B 0.021 3409 YG001.3 YG001.3A 0.010 3408 YG001.2 YG001.2A 0.009 3406 WSD06 WSD06 0.040 661 IATS-1 14 IATS-1 14 0.391 3249 TS521 TS521 0.010 662 IATS- 115 IATS-I 15 0.084 3194 TS405 TS405C 0.003 977 0G020-018 OGO20GUFDO18 0.008 976 0G020-017 OGO20GUFDO17 0.012

Page 2 of 2

- Table I Sum of Fractions 00140--Soil Yankee Nuclear Power Station Rowe, MIA Station Key Station Sample ID Sum Of Fractions 975 0G020-016 OGO20GUFDO16 0.008 944 0G012-032 OG012GUFDO32 0.007 3417 YS001.7 YS001.7B 0.005 3354 TS99.56 TS99.56A 0.004 Min 0.003 Max- 0.391 Mean 0.027

Table 2 Page I of I Statistical Data Summary - 001.1 0 -- Soil Yankee Nuclear Power Station Rowe, MA Parameter Units #Detects # Sample Mlean Std. Dev AMinimum Mlaximum Median Results Ac-228 pCilg 60 60 0.728 0.192 0.169 1.041 0.786 Ag-108m pCilg 1 60 0.026 0.026 0.026 0.026 Ag-l lOm pCi/g 1 60 0.043 0.043 0.043 0.043 Am-241 pCilg 0 60 0.000 Ba-133 pCilg 0 1 0.000 Ba-140 pCilg 2 3 0.186 0.091 0.121 0.250 0.186 Bi-212 pCilg 43 51 2.776 12.668 0.444 83.900 0.883 Bi-214 pCilg 55 55 0.444 0.065 0.198 0.548 0.450 Cc-144 pCilg 1 60 0.250 0.250 0.250 0.250 Co-58 pCi/g 0 72 0.000 Co-60 pCi/g 7 72 0.364 0.612 0.033 1.726 0.093 Cs-134 pCi/g 2 72 0.118 0.031 0.096 0.140 0.118 Cs-136 pCi/g 2 2 0.517 0.063 0.472 0.562 0.517 Cs-137 pCilg 26 72 0.113 0.105 0.035 0.425 0.069 Eu-152 pCi/g 0 6 0.000 Fe-59 pCi/g 1 60 0.098 0.098 0.098 0.098 1-131 pCi/g 0 2 0.000 K-40 pCi/g 58 60 15.833 5.203 0.617 20.810 17.430 Kr-85 pCi/g 2 4 15.715 10.642 8.190 23.240 15.715 La-140 pCi/g I 1 12.950 12.950 12.950 12.950 Mn-54 pCilg 3 60 0.040 0.011 0.029 0.050 0.042 Nb-94 pCilg 0 1 0.000 Nb-95 pCi/g 5 60 0.054 0.007 0.044 0.064 0.051 Np-239 pCilg 0 9 0.000 Pb-212 pCi/g 60 60 0.718 0.200 0.216 0.993 0.778 Pb-214 pCi/g 60 60 0.465 0.083 0.236 0.650 0.468 Ra-226 pCilg 29 35 1.566 0.514 0.926 2.694 1.422 Ru-103 pCilg 1 60 0.025 0.025 0.025 0.025 Ru-106 pCVg 3 60 0.338 0.035 0.307 0.377 0.331 Sb-124 pCi/g 2 60 0.047 0.001 0.047 0.048 0.047 Sb-125 pCilg 0 5 0.000 Sc-75 pCi/g 0 1 0.000 Te-132 pCi/g 0 1 0.000 TI-208 pCilg 54 54 0.675 0.152 0.198 0.902 0.702 Zn-65 pCi/g 1 60 0.163 0.163 0.163 0.163 Zr-95 pCilg 3 60 0.061 0.012 0.052 0.075 0.056

(.. ( (.

U0

Pagel or I Table 3 Surnmary of Detected Results Above Criteria OOL10-- Soil ankee Nuclear Power.Station Rowe, IA.

DCGLSoil -

1. Sample Criterion; # Detects Above Maximum Parameter *# Detects _'Results Concentration Units Criterion Detected Ac-228 60 60 pCilg 0 1.04 Ag-108m 1 60 8.52 pCi/g 0 0.03 Ag-l I Om 1 60 pCilg. 0 0.04 Am-241 0 60 44.35 pCilg' 0 Ba-133 0 1 pCilg .0 Ba-140 2 3 pCilg 0 0.25 Bi-212 43 51 pCilg 0 83.90 Bi-214 ' 55 55 pCilg 0 0.55 Ce-144 1 60 I  :( pCUg 0.25

.I 0 Co-58 ., 0 72 pCi'g

.0 Co-60 7 72 4.84 pCi/g 1.73 0

Cs-134 2 72 6.71 pCi/g: 0.14 0

Cs-136 2 2 - I pCilg 0.56 0

Cs-137 26 72 12.24 pCi/g 0.43 0

Eu-152 0 6 12.06 pCilg

• 0 Fe-59 1 60 pCi/g 0.10 0 i 1-131 0 2 pCi/g 0

K-40 58 60 pCilg 20.81

,0 Kr-85 2 4 pClg. 23.24 0

La-140 1 1 pCilg' 12.95 0

Mn-54 3 60 21.66 pCilg 0.05

.0 Nb-94 0 1 ,8.53 pCilg

0 Nb-95 5 60 pCig i 0.06 9 .0 Np-239 0 pCig; .0 Pb-212 60 60 pCilg 0.99 0

Pb-214 60 60 pCilg 0.65 0

Ra-226 29 35 pCi/g 2.69 0

Ru-103 60 pCilg 0.02 pCi/g 0 Ru-106 3 60 68.21 0.38 0

Sb-l 24 2 60 pCilg 0 0.05 Sb-l 25 0 - 5 37.73 pCilg 0

Se-75 0  ; I pCilg 0

Te-132 0 , II pCi/g:

0 TI-208 54 ,54 pCilgi 0.90 0

Zn-65 1 60 pCilg '0 0.16 Zr-95 ., 3 :60 pCilg. 0.07

Table 4 Page 1 of 16 Rad

- , OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) IATS-114 (661) IATS-115 (662) IA-233 (663) IA-233 (663) IA-233 (663) IA-27 (631)

Sample ID IATS-114: IATS-115 IATS-233A IATS-233B IATS-233C IATS-27 Date Sampled 6/30/1994 6/30/1994 11/21/1994 111/17/1994 11/21/1994 5/6/1993 Ac-228 Ag-108m Ag-i lOnm Am-241 Ba-133 Ba-140 Bi-212 Bi-214 Ce-144 Co-58 0. 15 UM 0.069 UM 0.055 UM 0.063 UM 0.063 UM 0.049 UM Co-60 1.726 0.349 0.079 UM 0.0838 UM 0.0787 UM 0.697 UM Cs-134 0.115 UM 0.063 UM 0.046 UM 0.056 UM 0.057 UM 0.039 UM Cs-136 Cs-137 0.425 0.151 0.0531 10.0758 UM 0.0697 UM 0.136 Eu-152 Fe-59 1-131 K-40 Kr-85 La-140 Mn-54 Nb-94 Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 Te-132 TI-208 Zn-65 Zr-95 SOF 0.391 0.084 0.004 0.011 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 16 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) IA-62 (641) I IA-63 (643) IIA-64 (645) IA-65 (647) IA-66 (649) IR-36 (433)

Sample ID IATS-62 IATS-63 ! IATS IATS-65 IATS-66 IRTS-36 Date Sampled 6/4/1993 6/7/1993 -16/7/1993 16/4/1993 6/7/1993 - 5/18/1993 Ac-228 Ag-108Im Ag-110m Am-241 Ba-133 Ba-140 Bi-212 Bi-214 Ce-144 Co-58 0.0997 UM 0.085 UM 0.099 UM 0.114 UM 0.096 UM 0.0779 UM Co-60 0.101 UM 0.1I UM 0.135 UM 0.138 UM 0.105 UM 0.099 UM Cs-134 0.08 UM 0.074 UM 0.081 UM 0.089 UM 0.0995 UM 0.059 UM Cs-136 Cs-137 0.117 UM 0.0864 UM 0.126 UM -0.147 UM 0.282 0.0836 UM i

Eu-152 Fe-59 1-131 K-40 Kr-85 La-140 Mn-54 Nb-94 Nb-95 Np-239 Pb-212 Pb-214 Ra-226 Ru-103 Ru-106 Sb-124 Sb-125 Se-75 Te-132 TI-208 Zn-65 Zr-95 SOF J. 1. _________________ 1 1 .1 0.023 1 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

a-Table 4 Page 3 of 16 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G007-003 (132) -OGO7-004 (133) G0G007-005 (134) OG007-006 (135)

Sample ID OGO07GAFD003 OGO07GAFDO04 OGO07GAFD005 OGO07GAFDO06 Date Sampled 9/14/1998 ; 19/14/1998  ; 9/14/1998 ; 9/14/1998 Ac-228 1 0.9209 0.8902 0.8078 0.8128 Ag-108m 0.0008688 U -0.01533 U -0.0009957 U -0.01664 U Ag-1 lOrn 0.01948 U 0.001982 U -0.012 U -0.00453 U Am-241 OU 0U 0U OU Ba-133 Ba-140 Bi-212 0.7966 0.3246 U 83.9 1.038 Bi-214 0.4833 0.5089 0.5172 0.4504 Ce-1M -0.03355 U 0.04839 U -0.043 U 0.06699 U Co-58 0.001735 U -0.01179 U 0.001143 U -0.01235 U Co-60 0.01102 U 0.01954 U 0.03169 U 0.01695 U Cs-134 -0.08471 U -0.04201 U -0.2495 U -0.04594 U Cs-136 Cs-137 0.085810.03358 U 0.1365 0.074 Eu-152 0.3133 U Fe-59 0.0982310.006156 U -0.05988 U 0.08279 U 1-131 K-40 19.24 17.17 16.97 17.75 Kr-85 La-140 Mn-54 0.01264 U 0.01029 U 0.01332 U -0.002099 U Nb-94 Nb-95 0.051410.03593 U 0.04414 0.05068 Np-239 -24.02 U -23.2 U Pb-212 0.2262 0.6716 0.7539 0.7336 Pb-214 0.5568 0.4633 0.4849 0.4877 Ra-226 2.557 0.9393 U 1.444 Ru-103 -0.008466 U 0.01 102 U -0.002431 U -0.01552 U Ru-106 -0.08904 U -0.07611 U OU 0.08117 U Sb-124 -0.04796 U 0.001164 U -0.00722 U -0.007451 U Sb-125 Se-75 Te-132 TI-208 0.8511 0.6375 0.6621 0.7001 Zn-65 -0.08321 U 0.07828 U 0.02656 U -0.124 U Zr-95 0.005005 U -0.03104 U 0.05627 0.00946 U SOF I 0.007 A. .A 0.011 J 0.006 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 4 of 16 Rad OOL-10 -- Soil (pCitg)

Yankee Nuclear Power Station Rowe, MA Station (Key) O 0G007-007 (136) - 1G007-008 (137) 0G007-009 (138) O0G007-010 (139)

Sample ID : -i G0O07GAFDO07 OGO07GAFDO08 OGO07GAFDO09 OGO07GAFD010 Date Sampled 9/14/1998 19/14/1998 I.1 9/15/1998 19/15/1998 -.

Ac-228 0.7437 0.5253 0.7811 0.7391 Ag-108m -0.0001901 U -0.02191 U .

-0.01489 U -0.007268 U '

Ag-110m -0.009498 U -0.01509 U -0.004888 U 0.02132 U Am-241 0U 0U OU' OU Ba-133 Ba-140 Bi-212 0.8006 0.6927 1.101 0.6619 Bi-214 0.3618 0.4067 0.4678 0.5319 Ce-144 0.06482 U -0.06435 U 0.3636 U -0.05011 U Co-58 0.008339 U -0.01915 U -0.01269 U 0.009164 U Co-60 0U -0.01668 U OU 0.00664 U Cs-134 0.0008518 U 0.01727 U 0.05738 U -0.009905 U Cs-136 Cs-137 0.03224 U 0.02752 U 0.02865 U i 0.04793 Eu-152 0.1728 U Fe-59 -0.03035 U -0.0568 U 0.006198 U 0.06826 U 1-131 K-40 16.81 16.58 19.12 19.26 Kr-85 La-140 12.95 Mn-54 -0.01395 U 0.0108 U 0.01714 U OU '

Nb-94 Nb-95 0.03268 U 0.02864 U 0.008744 U -0.01412 U Np-239 -6.622 U Pb-212 0.7073 0.6156 0.7987 0.8139 Pb-214 0.409 0.4295 0.4512 0.4682 Ra-226  ; 1.593 Ru-103 0.008889 U 0.01689 U -0.002882 U -0.006657 U Ru-106 0.2252 U 0.09356 U 0.232 U 0.1744 U Sb-124 -0.008036 U 0.02386 U 0.01234 U -0.03295 U i

Sb-125 Se-75 Te-132 TI-208 0.5754 0.5566 0.611 0.7544 Zn-65 0.002858 U 0.02527 U 0.02364 U -0.002985 U Zr-95 0.05227 -0.01818 U 0.005211 U -0.02243 U SOF . .... 0.004 J. _____________________________ 1 .1 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

M-Table 4 Page 5 of 16 Rad OOL-1O -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G007-011 (140) 0G007-012 (141) 0G007-013 (142) - 0G007-014 (143)

Sample ID OGO07GAFDOII OGO07GAFDO12 OGO07GAFDO13 OGO07GAFDO14 Date Sampled 9/15/1998 9/15/1998 9/15/1998 9/15/1998 Ac-228 0.8243 0.834 0.7528 0.737 Ag-108m -0.005775 U -0.02793 U 0.008466 U 0.0007872 U Ag-I 10m, -0.002253 U 0.005724 U -0.02459 U -0.01447 U Am-241 0U OU OU OU Ba-133 Ba-140 Bi-212 1.13610.4231 U 0.8069 Bi-214 0.4123 0.5201 0.4001 0.4442 Ce-144 -0.2323 U 0.07175 U -0.02821 U 0.07805 U Co-58 -0.02259 U -0.02259 U 0.01209 U -0.00288 U Co-60 0.02777 U -0.006794 U 0.005455 U -0.0002716 U Cs-134 -0.11 U -0.1167 U -0.01093 U -0.1 U Cs-136 Cs-137 0.0640910.03735 U -0.03839 U 0.04802 Eu-152 Fe-59 0.05891 U -0.01934 U -0.01457 U 0.01888 U 1-131 K-40 19.55 19.43 20.07 17.1 Kr-85 8.19 La-140 Mn-54 0.0287710.01041 U 0.03265 U 0.05027 Nb-94 Nb-95 -0.006577 U 0.04272 U 0.04005 U -0.008001 U Np-239 Pb-212 0.7381 0.7618 0.8114 0.2156 Pb-214 0.4233 0.5393 0.5293 0.4421 Ra-226 1.127 1.422 Ru- 103 0.01 14 U -0.005545 U -0.02934 U 0.01668 U Ru-106 0.222 U 0.09927 U 0.1428 U -0.1555 U Sb- 124 OU 0.0203 U OU 0.009518 U Sb-125 -0.08455 U Se-75 Te-132 TI-208 0.6353 0.7426 0.6714 Zn-65 -0.14 U -0.1333 U -0.07466 U 0.05241 U Zr-95 0.03084 U 0.02783 U 0.01962 U -0.0136 U SOF 0.007 0.006 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 6 of 16 Rad OOL-1O - Soil (pCi/g)

Yankee Nuclear Power Station Rowe,'MA Station (Key) 10G07-017 (146) 0G007-018 (147) 10G07-019 (148) 0G007-021 (149)

Sample ID OG607GAFD017 OGO07GAFDO18 OGO07GAFDO19 OGO07GAFDO21 Date Sampled ' 9/15/1998 9/15/1998 1 9/15/1998 -;9116/1998 Ac-228 0.8868 0.7853 0.8646 0.768 Ag-108m -0.007737 U 0.02044 U -0.00455 U -0.0146 U *0i Ag-110m -0.04159 U -0.01339 U -0.001592 U -0.04892 U Am-241 0U OU OU OU Ba-133 Ba-140 Bi-212 0.674310.3703 U 0.9127 Bi-214 0.5367 0.4661 0.4348 ;0.464 Ce-144 -0.04285 U 0.02905 U -0.1308 U 0.06183 U Co-58 -0.004964 U -0.002368 U -0.001152 U -0.02284 U Co-60 0.003737 U 0.01486 U 0.01366 U 0.02604 U Cs-134 -0.01356 U -0.09571 U -0.02896 U -0.123 U Cs-136 0.4724 Cs-137 0.02055 U 0.03023 U 0.01007 U -0.02237 U -

Eu-152 Fe-59 -0.0008671 U -0.04912 U 0.02767 U -0.04258 U 1-131 K-40 18.13 20.81 20.37 17.22 Kr-85 La-140 Mn-54 -0.02662 U 0.002406 U -0.002898 U 0.008184 U Nb-94 Nb-95 0.01531 U 0.02065 U - -0.02493 U -0.0119 U Np-239 Pb-212 0.7778 I 10.8807 0.8558 0.7828 Pb-214 0.6495 - . 0.5393 0.5454 0.4428 Ra-226 2.694

• 1.921 Ru-103 -0.02149 U -U.UU557 U -0.01907 U 0.0006214 U Ru-106 0.1715 U 0.2605 U' 0.0214 U -0.1519 U Sb-124 0.01425 U 0.03584 U 0.00785 U -0.02538 U Sb-125 Se-75 i Te-132 TI-208 0.6825 0.7438 0.7145 0.686 Zn-65 0.004568 U -0.007645 U ., . 0.06851 U 0.05765 U Zr-95 -0.001283 U 0.06704 U -0.007177 U -0.02893 U SOF  ;. ~,;

,i U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 7 of 16 Rad OOL-10 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA I

Station (Key) 0G007-022 (150) 0G007-028 (156) O0G007-029 (157) OG007-030 (158)

Sample ID OG007GAFDO22 OGO07GAFDO28 OGO07GAFDO29 OGO07GAFDO30:

Date Sampled 9/16/1998 .' 9/16/1998 9/16/1998 .9/16/1998 Ac-228 0.7081 0.8062 0.847 0.7876 Ag-108m 0.00678 U -0.02285 U 0.006797 U 0.005136 U Ag-110n -0.02188 U -0.04849 U -0.02012 U -0.008495 U Am-241 0U . 0U OU OU Ba-133 Ba-140 Bi-212 0.9053 0.4428 U 0.6816 0.6774 Bi-214 0.4051 0.4284 0.4805 0.445 Ce-144 -0.1048 U -0.02519 U -0.05475 U 0.03395 U Co-58 -0.0092 U 0.01469 U 0.0059 U -0.02022 U Co-60 0.01892 U 0.00986 U OU 0.01307 U Cs-134 -0.02133 U -0.08603 U -0.03283 U 0.0007776 U Cs-136 Cs-137 -0.01515 U OU 0.04964 0.03979 Eu-152 0.2502 U Fe-59 -0.06111 U 0.005877 U -0.0496 U 0.04106 U 1-131 K-40 19.06 17.96 18.65 19.29 Kr-85 La-140 Mn-54 -0.005443 U 0.002458 U 0.02031 U 0.01 145 U Nb-94 Nb-95 -0.004168 U -0.01555 U -0.03275 U 0.01999 U Np-239 Pb-212 0.7668 0.8239 0.8655 0.7108 Pb-214 0.4318 0.4676 0.4987 0.5191 Ra-226 1.16 2.366 0.9824 U Ru-103 0.009444 U -0.02214 U 0.01214 U 0.002941 U Ru-106 0.1924 U 0.331 0.09688 U -0.1902 U Sb-124 0.04522 U -0.003577 U 0.04691 0.01854 U Sb-125 -0.09128 U Se-75 Te-132 Tl-208 0.8304 0.9015 0.7101 Zn-65 -0.09097 U -0.06297 U -0.05333 U -0.1036 U Zr-95 0.004419 U -0.02271 U 0.02234 U 0.0345 U SOF 0.005 0.004 0.003 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 8 of 16 Rad OOL-1O -- Soil (pCilg)

Yankee Nuclear Power Station Rowe, MA Station (Key) O0G007-031 (159) O0G007-032 (160) OG007-033 (161) OG007-034 (162)

Sample ID' ' OGO07GAFDO31 , OG007GAFD032 0G007GAFD033 - OG007GAFD034 -

Date Sampled :19/16/1998 19/16/1998 9/16/1998 91619 9/16/1998 Ac-228 ., 0.8956 0.8813 0.7016 0.6844 Ag-108m 0.01034 U 0.01014 U -0.0006191 U -0.0294 U Ag-110m 0.001064 U .; 0.004969 U -0.005762 U OU I Am-241 OU OU OU OU Ba-133 Ba-140 0.2502 i..

Bi-212 .I 1.035 0.5227 1.101 0.5051 U Bi-214 0.491 1 0.4594 0.4713 0.4278 Ce-144 -0.05925 U 0.09864 U -0.03727 U 0.1941 U Co-58 -0.009632 U -0.03266 U -0.003564 U -0.0432 U Co-60 -0.01049 U -0.01 14 U -0.01395 U 0.0117 U Cs-134 -0.04456 U -0.03834 U -0.1938 U 0.01957 U Cs-136 Cs-137 0.0384610.02778 U 0.0383610.02i54 U Eu-152 Fe-59 -0.0529 U 0.01279 U 0.006581 U 0.01977 U 1-131 K-40 18.61 19.99 18.14 19.73 Kr-85 La-140 Mn-54 -0.004026 U -0.005022 U 0.02413 U 0.008267 U Nb-94 Nb-95 0.01781 U -0.004752 U 0.01351 U 0.06354 Np-239 Pb-212 0.8019 s 0.6982 0.7919 0.778 Pb-214 0.5946 0.5578 0.55 0.524 Ra-226 1.602 2.056 2.584 Ru-103 0.02392 U -0.02188 U -0.01225 U -0.0103 U Ru-106 -0.2861 U 0.02445 U -0.163 U -0.1658 U Sb-124 0.006252 U 0.005252 U 0.001245 U 0.01 14 U Sb-125 Se-75 Te-132 TI-208 0.737 0.7808 0.6437 0.7352 Zn-65 0.1262 U 0.07263 U -0.06119 U 0.03751 U Zr-95 0.01905 U 0.015 U 0.01423 U 0.04823 U SOF 0.003 0.003 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

a-Table 4 Page 9 of 16 Rad OOL-1O -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA

' 1 Station (Key) 0G007-035 (163). -0G007-036 (164) . 0G007-038 (165) O0G012-032 (944)

Sample ID OGOO7GAFDO35- OGO07GAFDO36- OG007GAFDO38 OG012GUFDO32 Date Sampled 9/16/1998 19/16/1998 9/16/1998 . 110/7/1998 Ac-228 0.8595 0.7329 0.8124 0.72 Ag-108m -0.003293 U -0.003973 U 0.009334 U 0.0183 U Ag-IlOin 0.001453 U -0.009949 U -0.0141 U -0.00164 U Am-241 OU OU OU 0U Ba-133 Ba-140 Bi-212 0.7888 0.753 1.147 0.61 Bi-214 0.4979 0.3382 0.465 0.439 Ce-144 -0.05387 U -0.09032 U -0.005151 U 0.0346 U Co-58 0.003894 U -0.01262 U 0.008762 U -0.0192 U Co-60 0.01015 U 0.01008 U 0.007892 U 0.0111 U Cs-134 -0.007771 U 0.09627 -0.01753 U -0.0128 U Cs-136 0.5622 Cs-137 0.03376 U 0.057710.03254 U 0.0895 Eu-152 Fe-59 0.03133 U -0.0194 U 0.002833 U 0.0517 U 1-131 K-40 18.86 19.51 20.04 17.8 Kr-85 La-140 Mn-54 -0.002124 U -0.01549 U 0.005553 U 0.0108 U Nb-94 Nb-95 0.04246 U -0.03285 U 0.00692 U 0.0219 U Np-239 Pb-212 0.7511 0.6506 0.8105 0.729 Pb-214 0.5439 0.483 0.6034 0.492 Ra-226 1.344 1.293 1.553 1.36 Ru-1 03 -0.01079 U 0.002687 U 0.004337 U 0.00757 U Ru- 106 -0.02471 U -0.2086 U -0.1154 U 0.0929 U Sb-124 0.001181 U 0.00424 U 0.002136 U 0.00603 U Sb-125 Se-75 0.0227 U Te-132 TI-208 0.6843 0.7521 0.704 Zn-65 -0.08551 U -0.009526 U 0.08271 U 0.0594 U Zr-95 0.05396 U -0.01226 U -0.0 1626 U 0.0131 U SOF 0.019 0.007 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 10 of 16 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) *J0G020-015 (974)! 0G020-016 (975) 0G020-017 (976): 0G020-018 (977) JSE586 (3094)

Sample ID OGO20GUFDO15 OGO20GUFDO16 OGO20GUFDO17 OG620GUFDO18 SE586 Date Sampled 9/22/1998 - 9/22/1 998 9/22/1998 19/2211998 J 11/10/1998 Ac-228 0.795 0.698 0U

• 0.911 0.861 0.4597 Ag-108Im -0.00491 U 0.00132 U 0.0284 U 0.0127 U 0.007678 U Ag-110m -0.0124 U -0.0155 U -0.00428 U -0.00516 U -0.0009584 U Am-241 0U OU OU OU OU Ba-133 -0.0356 U Ba-140 0.602 U Bi-212 0.905 1.07 0.883 . ,, 1.09 0.444 Bi-214 0.424 0.548 0.442 . . 0.538 0.4813 Ce-144 0.0922 U -0.0379 U -0.0862 U -0.1 18 U 0.02405 U '

Co-58 -0.0199 U -0.00536 U 0.00669 U -0.0116 U -0.01665 U.

Co-60 0.00955 U -0.00445 U 0.0334 0.000937 U -0.007599 U Cs-134 0.00878 U -0.0201 U 0.0161 U -0.0221 U -0.03785 U Cs-136 Cs-137 0.0356 U 0.09491 0.0636 0.04891-0.007866 U Eu-152 Fe-59 -0.0456 U OU 0.0313 U 0.0312 U -0.03491 U 1-131 K-40 18.2 18.1 20.8 19.5 9.929 Kr-85 La-140 Mn-54 -0.00793 U 0.00761 U -0.0188 U 0.021 U -0.01119 U Nb-94 Nb-95 0.00612 U -0.0458 U 0.05791-0.0053 U 0.02574 U Np-239 Pb-212 0.628 '0.754 0.814 0.788 0.3973 Pb-214 0.391 0.491 0.491 0.478 0.3776 Ra-226 2.26 '1.62 1.06 U 1.66 Ru-103 -0.031 U -0.0106 U 0.002 U -0.0185 U 0.0006074 U Ru-106 -0.0601 U -0.0155 U 0.103 U 0.307 0.02422 U -

Sb-124 0.0158 U 0.00151 U -0.0271 U -0.00842 U 0.001163 U Sb-125 -0.121 U Se-75 Te-132 TI-208 0.638 0.759 0.669 0.731 0.4828 Zn-65 -0.0155 U 1.

-0.0627 U 0.0348 U -0.0891 U. 0.03318 U Zr-95 -0.0201 U 0.0231 U -0.0184 U 0.00809 U 0.01432 U ' -

SOF 0.008 0.012 0.008 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

a-Table 4 Page 11 of 16 Rad OOL-1O - Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key)' SE587 (309 TS405 (3194) TS405 (3194) jTS405 (3194) TS405 (3194) 1TS405 (3194)

Sample ID ' SE587 '  : TS405A TS405B TS405C T TS405D TS405E Date Sampled 11/10/1998 10/22/1997 10/22/1997 10/22/1997 - 10/22/1997 10/22/1997-Ac-228 0.3858 0.5814 0.7521 0.8004 0.6224 0.6019 Ag-108m 0.006805 U 0.01435 U -0.006968 U -0.0002315 U -0.02243 U -0.002104 U Ag-110m 0.002042 U 0.01131 U 0.0286 U -0.01835 U 0.001335 U 0.01594 U Am-241 0U OU OU OU OU OU Ba-133 Ba-140 Bi-212 0.5213 0.4518 U 0.8155 0.94291 0.4267 U Bi-214 0.3693 0.4109 Ce-144 0.07644 U -0.06953 U 0.1079 U -0.01974 U -0.001111 U 0.01693 U Co-58 -0.01724 U -0.0203 U -0.01053 U 0.009221 U -0.01364 U -0.003714 U Co-60 -0.006939 U 0.01215 U 0.03386 U 0.03231 U 0.2533 0.00927 U Cs-134 -0.08675 U 0.01305 U -0.03516 U -0.1703 U 0.03454 U 0.01769 U Cs-136 Cs-137 0.01 149 U 0.02654 U 0.008091 U 0.03495 0.375410.005428 U Eu-152 0.00005111 U Fe-59 -0.02192 U -0.01778 U 0.01 199 U -0.01 196 U 0.02691 U -0.03288 U 1-131 K-40 10.32 0 U 0.9427 0.7831 0.61731-0.07905 U Kr-85 La-140 Mn-54 -0.0005561 U -0.01437 U 0.0285 U 0.01263 U 0.01538 U 0.004965 U Nb-94 Nb-95 0.004429 U -0.007653 U -0.001721 U -0.007582 U -0.02925 U -0.01481 U Np-239 -0.2367 U Pb-212 0.3215 I 0.7312 0.8602 0.715 0.7197 0.7338 Pb-214 0.2934 0.4016 0.4822 0.4639 0.4018 0.42 Ra-226 1.184 1.104 Ru-103 0.02478 0.02599 U -0.002226 U 0.0009363 U. .0.01335 U 0.01682 U Ru-106 -0.07939 U -0.04424 U -0.08943 U 0.04458 U 0.37651-0.02893 U Sb-124 -0.007437 U 0.01244 U -0.01677 U 0.04779 -0.02958 U 0.03045 U Sb-125 -0.05987 U Se-75 Te-132 TI-208 0.2817 0.58 0.7417 0.7459 0.6349 0.583 Zn-65 -0.08563 U -0.05327 U -0.09423 U 0.1633 -0.02267 U 0.01745 U Zr-95 0.003269 U -0.01731 U 0.002764 U 0.017 U -0.03878 U 0.07419 U SOF 0.003 0.089 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 12 of 16 Rad OOL-10 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe; MA Station (Key) TS521 (3249) -TS522 (3250) .TS99.50 (3348) TS99.55 (3353). TS99.55 (3353)

Sample ID 17TS521 . - TS522 . TS99.50A TS99.55A .TS99.55B Date Sampled 8/3/1998 - . 8/3/1998 . j61311999 . 6/91999 . -6/9i999 Ac-228 . 0.8826 0.8816 0.8575 0.8038 0.8059 Ag-108I- -0.009918 U 0.01856 U; -0.0008872 U -0.02451 U -0.01502 U Ag-I lOn 0.005551 U -0.02535 U 0.0267 U -0.01188 U -0.005401 U Am-241 0U 0U 0U OU 0U Ba-133 Ba-140 Bi-212 0.9896 0.9608 0.5043 U 1.146 0.5942 Bi-214  : 0.4384 0.3945 0.3456 0.4808 0.4921 Ce-144 0.0666 U 0.04375 U -0.2246 U -0.004707 U 0.01987 U Co-58 0.002138 U 0.0175 U 0.006474 U 0.01291 U  : 0.006445 U Co-60 0.04897 0.0239 U -0.007475 U -0.02597 U 0.01761 U Cs-134 -0.1636 U -0.006952 U -0.1022 U 0.006262 U I -0.0611 U Cs-136 Cs- 137 0.01447 U 0.01331 U -0.002576 U -0.0256 U -0.009826 U Eu-152 1.895 U Fe-59 0.02042 U -0.0423 U -0.0492 U 0.02304 U -0.0492 U 1-131 0.03175 U K-40 - 18.45 18.08  : 15.56 16.37 15.49 Kr-85 La-140 Mn-54 -0.02221 U -0.006634 U -0.003437 U 0.0271 U -0.002251 U Nb-94 0.02416 U Nb-95 -0.005291 U 0.01689 U 0.009179 U 0.03347 U 0.01935 U Np-239 -0.1064 U -0.364 U -0.3485 U Pb-212 0.8881 0.9933 .0.8509 0.7801 0.83 Pb-214 0.5231 0.5456 0.5168 0.4514 0.462 Ra-226 , 1.405 1.33 0.8842 U Ru-103 -0.02881 U -0.01801 U -0.00004986 U 0.005422 U -0.005012 U Ru-106 -0.05031 U -0.02172 U -0.04307 U 0.1275 U 0.05507 U Sb-124 -0.0251 U 0.01114 U -0.02533 U -0.0 1607 U -0.01542 U  :

Sb-125 Se-75 Te-132 Tl-208 0.7411 . 0.8244 0.7441 0.8052 0.8054 Zn-65 0.0685 U -0.02945 U -0.09394 U 0.02131 U -0.0 i007 U Zr-95 0.03129 U 0.03888 U -0.01341 U 0.02426 U 0.03513 U j,,- .

SOF 0.01 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

J-Table 4 Page 13 of 16 Rad OOL-10 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key). TS99.55 (3353) T (TS99.56 (3354) TS99.56 (3354) WSDO6 (3406) YG00I.1 (3407)

Sample ID TS99.55C . TS99.56A - TS99.56B  %. WSD06 YG001.IB: '

Date Sampled 6/9t1999 6/28/1999 6/28/1999 9/27/1999 912411998: -

Ac-228 0.9256 00.5786 0.6004 0.311 0.8881 Ag-108m -0.005938 U 0.01542 U 0.01044 U OU -0.01426 U Ag-1 10mi -0.01118 U -0.008922 U -0.04784 U 0.01076 U -0.04486 U Am-241 OU OU OU OU OU Ba-133 Ba-140 Bi-212 0.7482 0.6219 0.6617 0.4691 Bi-214 0.5226 0.4373 0.4625 0.3216 0.4779 Ce-144 -0.05733 U 0.1065 U -0.1168 U 0.009139 U 0.0714 U -

Co-58 -0.01411 U 0.01964 U -0.02232 U -0.007698 U 0.01713 U Co-60 -0.02152 U 0.008125 U 0.0151 U 0.09267 -0.01523 U Cs-134 0.002018 U 0.004413 U -0.05891 U 0.003698 U -0.0603 U Cs-136 Cs-137 -0.004949 U 0.0431110.01042 U 0.26041-0.01577 U Eu-152 Fe-59 -0.04733 U 0.01713 U -0.02926 U 0.009446 U -0.04292 U 1-131 K-40 16.14 16.4 14.38 10.22 17.64 Kr-85 La-140 Mn-54 -0.01403 U -0.03443 U 0.0102 U 0.02301 U 0.005129 U Nb-94 Nb-95 0.01612 U -0.04069 U 0.005812 U 0.005716 U 0.001167 U Np-239 0.1964 U Pb-212 0.9416 0.7998 0.8274 0.3924 0.8725 Pb-214 0.4607 0.4519 0.4286 0.3105 0.5039 Ra-226 0.9628 1.208 1.042 Ru-103 -0.0 1087 U 0.008899 1L J -0.03998 U -0.005913 U 0.004686 U Ru-106 0.167 U 0.01161 U -0.1081 U 0.01877 U -0.1308 U Sb-124 -0.02071 U -0.006058 1U 0.01691 U 0.008034 U -0.03975 U Sb-125 Se-75 Te-132 TI-208 0.8845 0.6664 0.6546 -0.6788 Zn-65 -0.08516 U -0.07536 U 0.0229 U -0.0103 U -0.06138 U Zr-95 0.02345 U 0.02468 U 0.05066 U -0.01 159 U 0.002815 U' SOF 0.004 0.04 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 14 of 16 Rad OOL-10 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe,'MA Station (Key) YG0O1.2 (3408) JYG0O1.2 (3408) JYGOOI.3 (3409) YGOO1.3 (3409) YG0O1.4 (3410)

Sample ID : YG0O1.2A YGO01.2B- ; YGOO1.3A . YGOO1.3B YGOO1.4A Date Sampled - 9/23/1998 .19/24/1998 9923/1998' - 9/23/1998 - 9/23/1998 Ac-228 0.169 , 0.8458 0.2318 0.8933 0.2899 Ag-108m -0.01043 U -0.0008614 U -0.005587 U 0.003842 U -0.01157 U Ag-1 10m -0.008361 U 0.004675 U 0.009241 U OU 0.006929 U Am-241 0U 0U OU OU OU Ba-133 Ba-140 Bi-212 0.9872 1.052 Bi-214 0.2904 0.492 0.1977 0.4047 0.455 Ce-144 0.07455 U -0.04324 U 0.09241 U - 0.0246 U 0.05709 U Co-58 -0.01035 U -0.0005997 U -0.004631 U 0.0007271 U 0.01 144 U Co-60 0.01539 U 0.02381 U 0.04692 0.01616 U -0.004328 U Cs-134 -0.03343 U -0.0647 U -0.06818 U -0.024 U 0.06308 U Cs-136 Cs-137 0.11331-0.02011 U 0.01622 U 0.02235 U 0.005973 U Eu- 152 0.3631 U Fe-59 -0.0 1302 U 0.0244 U 0.001012 U 0.05164 U 0.02411 U 1-131 0.2035 U K-40 7.096 16.99 4.33 16.16 3.218 Kr-85 3.136 U La-140 Mn-54 0.0119 U -0.002505 U 0.009077 U -0.01111 U 0.007295 U Nb-94 Nb-95 0.0005109 U 0.02286 U -0.009364 U 0.01081 U 0.002982 U Np-239 Pb-212 0.227 0.9651 0.2526 0.9064 0.2574 Pb-214 0.2362 0.5788 0.2964 0.5632 0.3427 Ra-226 1.703 1 0.9338 Ru-103 0.01051 U -0.0002123 U : 0.01452 U -0.01025 U 0.002339 U Ru-106 0.07433 U OU 0.157 U -0.07578 U - 0.1063 U Sb-124 -0.005896 U -0.04264 U , OU -0.03078 U 0.0214 U Sb-125 0.07133 U Se-75 Te-132 TI-208 0.2021 0.8964 0.1975 ,  : 0.6982 Zn-65 0.007342 U 0.003044 U 0.0485 U 0.02052 U - -0.04391 U Zr-95 0.003475 U 0.0267 U 0.01256 U -0.002878 U ' -0.01169 U SOF 0.009 0.01 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

a-Table 4 Page 15 of 16 Rad OOL-10 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) YGOO1.4 (3410) YGOOI.5 (3411) JYGOOI.5 (3411) YSOOI.7 (3417) YSOOI.7 (3417)

Sample ID YG001.4B YGOOI.5A ' YGOOI.5B YSOOI.7A YSOOI.7B Date Sampled 9/23/1998 9/23/1998 9/24/1998 1/26/1999 _

11/26/1999 Ac-228 0.6008 0.2046 0.9132 0.7065 1.041 A ,

Ag-108m 0.003712 U 0.0007827 U 0.01398 U 0.02242 U 0.02598 Ag-110m -0.03155 U -0.0223 U 0.009065 U -0.02084 U 0.04256 Am-241 0U 0U 0U 0U OU Ba-133 Ba-140 0.1208 Bi-212 0.5936 1.259 0.9541 0.9366 Bi-214 0.4591 0.4914 0.4416 0.4034 Ce-144 0.2499 -0.01212 U -0.02047 U -0.06937 U -0.05391 U Co-58 0.007091 U 0.003698 U -0.02688 U -0.02816 U -0.01423 U Co-60 -0.02996 U 0.02993 U 0.01154 U -0.01473 U -0.01745 U Cs-134 0.1397 0.00855 U 0.003602 U 0.007334 U 0.01177 U Cs-136 Cs-137 -0.0155 U 0.09438 -0.005311 U -0.01452 U 0.01445 U Eu-152 Fe-59 0.005814 U -0.007987 U 0.0109 U -0.03738 U -0.03749 U 1-131 K-40 16.37 7.942 17.17 16.22 15.64 Kr-85 23.24 La-140 Mn-54 0.0003006 U -0.006936

, U 0.0005398 U -0.004429 U 0.0416 Nb-94 Nb-95 0.01279 U -0.005081 U 0.02419 U -0.007533 U -0.0167 U Np-239 0.1845 U Pb-212 0.7393 0.3021 0.9779 0.7912 0.8913 Pb-214 0.4373 0.264 0.4678 0.4321 0.3778 Ra-226 0.7968 U 1.011 U Ru-103 0.01621 U -0.002256 U -0.02533 U 0.0008506 U -0.01062 U Ru-106 0.02145 U 0.04526 U 0.08808 U -0.0485 U 0.0009506 U Sb-124 -0.00695 U 0.02874 U 0.01063 U 0.004997 U -0.009631 U Sb-125 Se-75 Te-132 0.02845 U Tl-208 0.5681 0.2749 0.7522 0.7727 Zn-65 0.007867 U -0.06627 U -0.1152 U 0.1001 U -0.07365 U Zr-95 -0.03383 U -0.003156 U 0.07483 0.01 153 U 0.01234 U SOF 0.021 0.008* I A. c).005 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 16 of 16 Rad OOL-10 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) YSOO1.7 (3417)

Sample ID YS001.7C Date Sampled 1/26/1999 Ac-228 0.646 Ag-108m 0.004894 U Ag-110m -0.009033 U Am-241 0U Ba-133 Ba-140 Bi-212 Bi-214 0.4489 Ce-144 -0.01814 U Co-58 -0.01237 U Co-60 -0.01074 U Cs-134 -0.004026 U Cs-136 Cs-137 0.004941 U Eu-152 Fe-59 0.01037 U 1-131 K-40 16.01 Kr-85 3.119 U La-140 Mn-54 -0.02059 U .1 Nb-94 Nb-95 0.0026 U Np-239 Pb-212 0.819 Pb-214 0.4304 Ra-226 0.9256 Ru-103 0.008408 U Ru-106 0.0213 U Sb-124 -0.008779 U Sb-125 Se-75 Te-132 TI-208 0.7518 Zn-65 -0.02559 U Zr-95 0.03798 U SOF U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Cw C (

Table 2 Page I of 1 Statistical Data Summary - 001,.0 -- Water Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results

-Ag-I 08m pCi/g 0 I 0.000

.Ag- lOnm pCi/g 0 0.000 Bi-212 pCi/g 0 0.000 Bi-214 pCi/g 1 I 0.000 0.000 0.000 0.000

-Ce-144 pCi/g 0 I 0.000 Co-58 pCi/g 0 I 0.000 I.

Co-60 --pCilg 0 0.000 Cs-134 .pCi/g 0 0.000 Cs-137

• PCi/g 0 0.000 Fe-59 pCilg 0 1 :0.000 K-40

• pCi/g 0 1 0.000 Kr-85

• PO/g 0 1I 0.000 I .

- Mn-54 0 I -0.000,  !

I-

pCilg I Nb-95 pCi/g I 0.000'

.Pb-214

• pCi/g 1 0.000 0.000 0.000 0.000 I*

Ru-103 pCilg 0 0.000 Ru- 106 0 0.000 1

Sb-124 .pCi/g *0 0.000 I

Sb-125 pCi/g 0 - - 0.000,

Se-75 pCi/g 0 0.000 Zn-65 pCi/g 0 0.000 Zr-95 pCilg 0 0.000

Table 4 Page 1 of I Rad OOL-IO -- Water (pCitg)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G020-033 (129)

Sample ID 0G020GUFW033 Date Sampled 9/17/1998 Ag-108m -0.0000000005294 U Ag-110m 0.0000000005246 U Bi-212 0.00000002618 U Bi-214 1.049E-07 Ce-144 -0.000000005472 U Co-58 -0.00000000156 U Co-60 0.000000001081 U Cs-134 -0.000000001064 U Cs-137 -0.0000000006759 U Fe-59 -0.000000001397 U K-40 0.00000002717 U Kr-85 0.0000002565 U Mn-54 OU Nb-95 0.000000001548 U Pb-214 1.006E-07 Ru-103 -0.000000001466 U Ru-106 0.000000005513 U Sb-124 0.00000000216 U.

Sb-125 0.000000002316 U Se-75 0.0000000007355 U Zn-65 0.000000003541 U Zr-95 -0.000000002187 U

- U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Water Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Underground Systems OOL-10 Structure / System Component Description Location Impacted?

Storm Drains WCB-005 depth = 51"; 4' dia at base, 2' at top; no ladder -140' S of WCB-004 access; 18" corr pipe 34" from top going N. 18" corr pipe 34" from top going S; no bottom; fair condition WCB-006 depth = 4'; 4' dia at base, 18" at top; no ladder -238' S of WCB-005 access; 4" PVC pipe 28" from top going NW, 18" corr pipe 35" from top going N, 18" corr pipe 35" from top going S; concrete bottom; good condition WCB-007 depth = 51"; 4' dia at base, 2' at top; no ladder -190' S of WCB-006 access; 18" corr pipe 39" from top going -20' NE then -135' N to WCB-006, 18" corr pipe 39" from top going E, 18" corr pipe 39" from top going

-100' SE to BI (see Fig. Z, OOL-05); concrete bottom: good condition WCB-010 depth = 12'; 4' dia at base, 2' at top; ladder -18' N of NW corner of Si bldg access; 18" corr pipe 10'1" from top going -30' N to WCB-01 1, 6" cast iron pipe 4'3" from top going SW to ???, 6" corr pipe 4'3" from top going up to 80' SSW to ???, 10" corr pipe 9'1O" from top going -125' SE to WCB-009, 8" corr pipe 9'8" from top going SE to ???, 8" perforated pipe 6'8" from top going SE to ???; brick bottom; fair condition, some loose bricks at top, base uneven WCB-011 depth = 11'; 4' dia at bsae, 2' at top; ladder -48' N of NW corner of SI bldg access; 18" corr pipe 8'9" from top going -190' N to WCB-015, 18" corr pipe 8'9" from top going

-30' S to WCB-010; concrete bottom; good condition Abandoned Street electric cable from OOL-02 continuing along west side of road Lighting going S -to a point on a line W of SW corner of Si bldg then curving SE then S then E Page 1 of 2

'.1

(. I

( Underground Systems

(

OOL-10 Structure / System Component Description Location Impacted?

Water from OOL-08 continuing E to a point just north of well - -230' S of middle of new the middle of the north side of the SSS bldg; then PCA Storage later from NOL-03 S -240' to an abandoned well Security Lighting underground from HH1/1A (OOL-02) S to HH7; from HH7 E HH7 - -55' S and -90' W of SW cables -90', from HH7 SW -20' to camera pole, from corner of TB; HH8 - -40' W of SW HH7 NE -5' to ???, from HH7 S -100' to HH8; comer of SI bldg; HH9 - -20' S and from HH8 S -140' to HH9; from HH9 ESE -200' -20' W of NW corner of SSS bldg to HH10, from HH9 SE -47' to light on fire pump house Electrical duct trays from the center of the south wall of new PCA

. storage going S to abandoned well I Page 2 of 2

Historical Site Assessment and Classification Summary Survey Area Name: East RCA Buffer Zone Designator: OO 1 1 Survey Area Description Survey area OOL0Il consists of land area that lies along the east boundary of the YNPS site RCA. Survey area OOL-II contains about 1221 square meters -of soil surface area.

Survey area OOL-II is bounded by 00L- 12 on the north, 00L-08 on the east, OOLk-10 on the south and NOL-02 and NOL-03 on the west.

There are no sub-surface systems that traverse or connect within survey area 00k,-1.

Items of note located within or adjacent to survey area OOL0Il include:

• The berm for the fuel oil st6rage tank

• The location of the temporary liquid waste evaporat6r and waste liquid storage tank.

• The permanent RCA boundary fence

• The location of the security fence Page I of 4

a-Historical Site Assessment and Classification Summary Survey Area Name: East RCA Buffer Zone Designator: OOL-11 Survey Area History Survey area OOL- 1 I is not part of the RCA. There are no radioactive systems present in OOL- 11 .Survey area OOL- 11 was not used for storing radioactive material or processing or packaging radioactive waste.

Surveys Area OOL- 11 represents a buffer zone around the Class 1 land survey areas within the posted RCA.

Scoping/Characterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan (Ref 1)..

Decommissioning No decommissioning activities have been performed for survey area OOL- 11.

Page 2 of 4

Historical Site Assessment and Classification Summary Survey Area Name: East RCA Buffer Zone Designator: OO-141 Findings Survey area OOL, 1I is a land area that is located in the non-RCA portion of the site.

Survey area OOk-I l is assumed to be minimally impacted the transport of the spent fuel.

Survey area OO- I is likely to contain residual radioactivity concentrations at a small fraction of DCGL.

The radionuclide mix likely to be present in OOL10k-l includes all radionuclides identified in the radioactive systems of the plant (Ref 2). The primary radionuclides of concern'for survey area OOL-11 are Co-60, Cs-137, Ag-108m, Sr-90 and tritium.

CurrentStatus Survey area OOL-1 potentially may be further impacted by continued decommissioning activities. No sampling was conducted in this area.

ClassificationStatement Based upon the historical use and radiological conditions associated with this survey area OOL-11 is identified as a Class 2 area.

Page 3 of 4

Historical Site Assessment and Classification Summary Survey Area Name: East RCA Buffer Zone Designator: OOL-11 Drawings 9699-FY-5A Figure 7-1A References I

_7 YNPS Decommissioning Plan, Rev. 0.0.

2. "Radionuclides for Building Surfaces and Soil DCGL Determinations," YA-REPT-00-001-03

'2 Page4of4

Historical Site Assessment and Classification Summary Survey Area Name: Railroad Spur at Warehouse 'Designator: 00L1 2 Survey Area Description Survey area OOL 12 consists of asphalt covered land area adjacent to the RCA and contains about 882 square meters of surface area.

Survey area OOL-12 is bounded by SVC-03, OMB-04,10OL-02 and OOL-13 on the north, OOL-13 on the east, OOL-08 on the south and NOL-Ol onrthe west.

Sub-surface systems that traverse or connect within OOL,12 include:

• The Auxiliary Service Water System (ASWS) water and electrical

• Fire Protection System Water -'

• Electrical grounding cables.

• Security lighting electrical conduits Items of note located within 00L-12 include:

• A portion of the onsite railroad spur line running from the US Gen/ YAEC property line to the east end of the posted RCA.

• A portion of the Sherman Dam, flood control berm

• The warehouse loading dock structure (OMB-04):

• Security Light pole #5

• A stacked, concrete block retaining wall.

• Permanently installed RCA boundary fenice Page-l of 6

Historical Site Assessment and Classification Summary Survey Area Name: Railroad Spur at Warehouse Designator: 00-412 Survey Area History The bounds of OOL- 12 were established based upon the historical use of this area for transportation of radioactive waste such as spent fuel and irradiated hardware (control rods) via the railroad. Traffic of personnel and material into and out of the RCA may also have spread contamination into OOL-12. Additionally survey area OOL-12 is located down slope from the RCA and as so was and is susceptible to contamination resulting, from surface water run-off from within the RCA. The eastern bound of OOL- 12 is the property line between US Gen. and YAEC.

The railroad service to the plant was terminated prior to 1970. The railroad tracks within the YNPS site and two flat bed cars remained in service to support plant operations.

The construction of the service building annex in the mid 1970s made it so that vehicle traffic had to drive east, around the end ofthe garage building in order to access the east end of the RCA.

Events and activities that lead to the contamination within the RCA, which potentially migrated into survey area OOL-12 include:

• AOR 63-12, Shield Tank Cavity Shield Water Spill. (Ref 1)

• AOR 63-17, De-watering Pump Packing Leakage. (Ref 2),

• AOR 64-13, Leakage from the Ion Exchange Pit. (Ref 3)

• AOR 66-07, Spent Fuel Pit Water Spill (Ref 4)

• AOR 66-09, Hose Failure (Fuel Chute Pump-back System draining in progress) (Ref 5)

• PIR 75-07, Yard Area Contamination. (Ref 6)

• PIR 81-09, Contamination of Yard during Reactor Head Removal. (Ref 7)

• PIR 94-03, Leakage from Frozen Fuel Chute De-watering Line (Ref 8)

• PIR 94-09, Leakage from Frozen NST Telltale Lines (Ref 9)

Translocation Pathways Modes and vectors of contamination transmigration include:

• Snow removal was necessary within the RCA in order to facilitate access to all areas. Snow removal likely moved contamination present on the surface of the RCA was to the locations where snow accumulated. When these locations would not accept additional snow the snow was loaded on to trucks and driven to remote storage locations. As the snow melted the snow accumulation locations will likely have a higher concentration of the radioactivity present due to deposition of additional radioactivity. Snow accumulation locations within OOL- 12 typically were to either side of the railroad tracks. Survey area OOL- 12 received snow pushed out of the RCA.

Page 2 of 6

Historical Site Assessment and Classification Summary Survey Area Name: Railroad Spur at Warehouse , Designator: 00L-12

• Surface water run-off resulting from rain and snowmelt is likely to have transported surface contamination into low areas where it would collect.

Surface water run-off collection locations in OOL,12 include the low area along the railroad tracks in particular in the space between the railroad ties.,

Otherwise the surface water run-off pattern was east along the railroad tracks and into survey area OOL413.

, Preparations and decontamination of spent fuel and high level waste shipping containers were performed in the areas adjacent to the SFP and the current.

FTE. These evolutions were likely contributors of radioactive contamination to the surface of the RCA during the early years of plant operations.

Modifications performed at the YNPS site during years of operation that changed the configuration of OOL1, 2 include:

Paving of previously unpaved areas within the bounds of survey area OOL-12.

• Construction of the service building annex

• Closing of east storm drain, catch basin #3.

• Installation of the permanent RCA perimeter fence.

• Modification of the warehouse loading dock.

• Installation of security lighting pole #5

• Construction of the stacked concrete block retaining wall Modifications performed'at the YNPS site in support of decommissioning that changed the configuration of OOL-12 include:

• Installation of the ASWS water piping and electrical supply.

Scoping/Characterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan. (Ref 10) Additional scoping survey data was collected in support of the construction activities performed in 00L.12 associated with decommissioning activities.

Decommissioning' No decommissioning activities have been performed for 'survey area OOL- 12.

Survey area 00oil2 has been affected by decommissioning activities performed on

systems and structures within and adjacent to it.

Page 3 of 6

U~

Historical Site Assessment and Classification Summary Survey Area Name: Railroad Spur at Warehouse Designator: OOL-12 Findings Survey area OOL-12 is a land area that is located adjacent to and down slope from the current configuration of YNPS RCA.

Contamination of survey area OOL- 12 likely resulted from surface water run-off from within the RCA and potentially from transport of contaminated material and personnel traffic into and out of the RCA.-

Although samples indicate low levels. of activity, the primary contaminating events for this area, PIR 81-09, occurred during a major rainfall. The surface run-off would have carried the particulate activity down the rail bed, which was not paved over at the time.

Such a translocation event may have resulted in activity lodged in' the cracks and crevices of the rails, rail ties and ballast. Although the area was cleared quickly after the incident, the common mode of clearance (friskers) would not have been capable of detecting the embedded activity.

Survey area OOL-12 is impacted and potentially contains locations of residual radioactive contamination at levels greater the DCGL.

The radionuclide mix likely to be present in OOL-12 includes all radionuclides identified in the radioactive systems of the plant (Ref 11). The primary radionuclides of concern for survey area OOL-12 are Co-60, Cs-137, Ag-108m, Sr-90, and tritium.

Current Status OOL-12 continues to be potentially impacted by personnel traffic, radioactive material transportation and by continued decommissioning activities.

A soil sample location map (Figure 13) has been prepared to show the distribution of sampling locations in OOL- 12. Only samples representative of soils still present are included on the map (samples of soils representative of soils removed during remediation activities are not presented). Two survey media were assessed in OOL- 12, Asphalt, Sod and Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL. There are separate sets of Tables 1-4 for each survey media. All are evaluated as fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL- 12 is presented at the end of Table I for each survey medium. The results are summarized below.

Page 4 of 6

Historical Site Assessment and Classification Summary Survey Area Name: Railroad Spur at Warehouse  ;,- 1,Designator: OOL 12 Asphalt: Mean SOF is none detectable.

Maximum SOF for a single asphalt sample is none detectable.

Minimum SOF for a single asphalt sample is none detectable.

Soil: Mean SOF is 0.013.

Maximum SOF for a single soil sample is 0.013. (key# 639)

Minimum SOF for a single'soil sample is 0.013. (key# 639)

Classification Statement Based upon the historical use and radiological conditions associated with this survey area OOL-12 is identified as a Class 1 Area.

Page 5 of 6

Historical Site Assessment and Classification Summary Survey Area Name: Railroad Spur at Warehouse Designator: OOL-12 Drawings Figure 7-lA References

1. Abnormal Occurrence Report (AOR) 63-12, "Shield Tank Cavity Shield Water Spill," dated October 1, 1963.

2. AOR 63-17, "De-watering Pump Packing Leakage," dated October 18, 1963.

3. AOR 64-13, "High Level in IX Pit Resulting In Pit Leakage Coming Up Through' the Blacktop," dated October 13, 1964.

4. AOR 66-07, 'Spent Fuel Pit Water Spill," dated September 27, 1966.

5. AOR 66-09, "Plastic Garden Hose Failure," dated November 1, 1966.

6. Plant Information Report (PIR) 75-07, "Yard Area Contamination," dated August 12, 1975.

7. PIR 81-09, "Contamination of Yard during Reactor Head Removal" dated June 12, 1981.

8. PIR 94-03, "Leakage from Frozen Fuel Chute De-watering Line," dated October 17, 1994.

9. PIR 94-09, "Leakage from Frozen NST Telltale Lines," dated February 18, 1994.

10. YNPS Decommissioning Plan, Rev. 0.0.

11. "Radionuclides for Building Surfaces and Soil DCGL Determinations," YA-REPT-00-001-03 Page 6 of 6

PagelofI1 Table 1 Sum of Fractions OOL-12 -- Asphalt Yankee Nuclear Power Station Rowe, MIA Radionuclides for which SOF is calculated were not present in samples.

Table 2 Page I of I Statistical Data Summary - OOL-12 -- Asphalt Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects Sample Mean Std. Dev Minimum Maximum Median Results Co-58 pCi/g 0 2 0.000 Co-60 pCi/g 0 2 0.000 Cs-134 pCi/g 0 2 0.000 Cs-137 pCi/g 0 2 0.000

( (..

Page 1or 1 Table 3 Summary of Detected Results Above Criteria 1OOL-2 -- Asphalt -'

Yankee Nuclear Power Station Rowe, MA, DCGL..As phal t ' -

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Co-58 0 2 pCilg 0 Co-60 0 2 4.84 .pCilg, 0 Cs-i 34 0 2 6.71 .Pcilg 0 Cs-137 0 2 12.24 pCilg 0

Table 4 Page 1 of I Rad OOL-12 - Asphalt (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) IA-52 (637) IA-53 (639)

Sample ID IAAS-52 IAAS-53 Date Sampled 5/17/1993 5/19/1993 Co-58 0.082 UM 0.064 UM Co-60 0.0683 UM 0.0919 UM Cs-134 0.065 UM 0.068 UM Cs-137 0.0725 UM 0.0837 UM I

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Asphalt Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Pagel of I Table 1 Sum of Fractions 0OL-12 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 639 IA-53 IATS-53 0.013 Min 0.013 Max 0.013 Mean 0.013

Table 2 Page 1of I Statistical Data Summary - 001-12 -- Soil Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Co-58 pCi/g 0 2 0.000 Co-60 pCi/g 0 2 . 0.000 Cs-134 pCi/g 0 2 0.000 Cs-137 pCi/g 1 2 0.157 0.157 0.157 0.157

(.(. (_.

r

Pagelof 1 Table 3 Summary of Detected Resiults Above Criteria 00L12 -- Soil .

Yankee Nuclear Power Station Rowe, MA DCGLSoil

1. Sample Criterion # Detects Above Maximum Parameter # Detec -Results Concentration Units Criterion Detected Co-58 0 2 pCilg, 0 Co-60 0 2 4.84 pCi/g 0 Cs-1 34 0 2 6.71 pCilg 0 Cs-137 1 2 12.24 -Pqi/g 0 0.16

a-Table 4 Page I of I Rad OOL-12 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA

- /1 Station (Key) IA-52 (637) IA-53 (639)

Sample ID IATS-52 IATS-53 Date Sampled 5/20/1993 5/19/1993 Co-58 0.087 UM 0.07 UM Co-60 0.108 UM 0.13 UM Cs-134 0.079 UM 0.074 UM Cs-137 0.11 UM 0.157 SOF 0.013 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

I Underground Systems OOL-12 Structure I System Component Description Location Impacted?

Storm Drains ECB-002 depth = 61"; 4' dia at base, 2' at top; ladder -40' N of ECB-003 access; 18" PACM (transite) pipe 46" from top going N to ECB-001, 18" corr pipe 51" from top going S to ECB-003, concrete bottom with sump area 2' dia x 18" deep; good condition Aux. Service Water ASWS electric and from A2 going W -135' to a point -30 N of FSB A2 - -10' S of SE corner of SB System water then S to FTB; and going N to Al addition Water from NOL-01 E to just SE of SE corner of SB then N -118' (and under SB addition) to tee W8 Page 1 of 1

Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Railroad Spur Terminus Designator. OOL-13 Survey Area Description Survey area OOL1l 3 consists of asphalt and soil covered land area and contains about 1159 square meters of surface area.

Survey area OOL-13 is bounded by OOL-Ol on the north, OOL-15 on the east, OOL-14 on the south and OOL, 12 and OO0U3 on the west.

There are no sub-surface systems that traverse or connect within survey area OOL- 13.

Items of note located within OOL- 13 include:

• A portion of the onsite railroad spur line running from the US Gen./ YAEC property line east to and including the main H T and W tracks that run through the YNPS site.

• The current configuration of the security fence

• Wheeler Brook

• The shore line of Sherman Reservoir Page l of S

I-Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Railroad Spur Terminus Designator: OOL-13 Survey Area History The bounds of OOL- 13 were established based upon the historical use of this area for transportation of radioactive waste such as spent fuel and irradiated hardware (control rods) via the railroad and subsequent truck shipments made after the railroad was discontinued. Additionally survey area OOL- 13 is located down slope from the RCA and as such was and is susceptible to contamination resulting from surface water run-off from within the RCA. The western bound of OOL- 13 is the property line between US Gen. and YAEC.

The railroad service to the plant was terminated during the early 1970s. The railroad tracks within the YNPS site and two flat bed cars remained in service to support plant operations.

The construction of the service building annex in the mid 1970s made it so that vehicle traffic had to drive east, around the end of the warehouse/garage structure in order to access the east end of the RCA. The area east of the warehouse/garage structure lies within OOL- 13.

Events and activities that lead to the contamination within the RCA, which potentially migrated into survey area 00L,13 include:

• AOR 63-12, Shield Tank Cavity Shield Water Spill. (Ref 1)

• AOR 63-17, De-watering Pump Packing Leakage. (Ref 2)

• AOR 64-13, Leakage from the Ion Exchange Pit. (Ref 3)

• AOR 66-07, Spent Fuel Pit Water Spill (Ref 4)

• AOR 66-09, Hose Failure (Fuel Chute Pump-back System draining in progress) (Ref 5)

• PIR 75-07, Yard Area Contamination. (Ref 6)

• PIR 81-09, Contamination of Yard during Reactor Head Removal. (Ref 7)

• PIR 94-03, Leakage from Frozen Fuel Chute De-watering Line (Ref 8)

• PIR 94-09, Leakage from Frozen NST Telltale Lines (Ref 9)

TranslocationPathways Modes and vectors of contamination transmigration include:

• Snow removal was necessary within the RCA in order to facilitate access to all areas. Snow removal likely moved contamination present on the surface of the RCA was to the locations where snow accumulated. When these locations would not accept additional snow the snow was loaded on to trucks and driven to remote storage locations. As the snow melted the snow accumulation locations will likely have a higher concentration of the radioactivity present due to deposition of additional radioactivity. Snow accumulation locations within OOL- 13 typically were to either side of the railroad tracks. Survey area 0OL-13 received snow pushed out of the RCA.

Page 2 of 5

Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Railroad Spur Terminus Designator: 00-413

• Surface water run-off resulting from rain and snowmelt is likely to have transported surface contamination into low areas where it would collect.

Surface water run-off collection locations in OOL-13 include the low area along the railroad tracks in particular in the space between the railroad ties.

Otherwise the surface water run-off pattern was east along the railroad tracks and into survey area OOL- 15. -,

Modifications performed at the YNPS site during years of operation that changed the configuration of 0L-13 include:

• Paving of previously unpaved areas within the bounds of survey area OOL,13.

• Construction of the service building annex Closing of east storm drain,' catch basin #3.

• Expansion of the security.fence t6 include the US Gen property east of the warehouse.

• Installation of the permanent RCA perimeter fence.

Survey area OOL.13 is currently used as a material storage area in support of various ongoing decommissioning activities. '

Scoping/Characterization Scoping surveys were performed anid data collected used to develop the YNPS Decommissioning Plan (Ref 10).

Decommissioning No decommissioning activities have been performed for survey area OOL-13.

Survey ar'ea OOL-13 has been affected by decommissioning activities performed on systems sytm and structures within an .ce and adjacent to... it. ,

Page 3 of 5

a-Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Railroad Spur Terminus Designator: 00 -13 Findings Survey area OOL-13 is a land area that is located adjacent to and down slope from the current configuration of YNPS RCA.

Contamination of survey area OOL 13 likely resulted from surface water run-off from within the RCA and potentially from transport of contaminated material and personnel traffic into and out of the RCA.

Survey area OOL- 13 is impacted and potentially contains locations of residual radioactive contamination at levels greater the DCGL; The radionuclide mix likely to be present in OOL 13 includes all radionuclides identified in the radioactive systems of the plant (Ref 11). The primary radionuclides of concern for survey area OOL-13 are Co-60, Cs-137, Ag-108m, Sr-90 and tritium.

CurrentStatus OOL 13 continues to be potentially impacted by personnel traffic, radioactive material transportation and by continued decommissioning activities.

A soil sample location map (Figure 14) has been prepared to show the distribution of sampling locations in OOk 13. Only samples representative of soils still present are included on the map (samples of soils representative of soils removed during remediation.

activities are not presented). One survey media was assessed in OOL- 13, Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL- 13 is presented at the end of Table 1 for each survey medium. The results are summarized below.

Soil: Mean SOF is 0.014.

Maximum SOF for a single soil sample is 0.031. (key# 79)

Minimum SOF for a single soil sample is 0.004. (key# 66)

ClassiflcationStatement Based upon the historical use and radiological conditions associated with this survey area 00kL 13 is identified as a Class 1 Area.

Page 4 of 5

Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Railroad Spur Terminus Designator: 00L13 Drawings 9699-FY-SA Figure 7-1A References

1. Abnormal Occurrence Report (AOR) 63-12, "Shield Tank Cavity Fill Water Spill,"

dated October 1, 1963.

2. AOR 63-17, "Dewatering Pump Packing Leakage," dated October 18, 1963.

3. AOR 64-13, "High Level in IX Pit Resulting In Pit Leakage Coming Up Through the Blacktop," dated October 13, 1964.

4. AOR 66-07, "Spent Fuel Pit Water Spill," dated September 27, 1966.

5. AOR 66-09, "Plastic Garden Hose Failure," dated November 1, 1966.

6. Plant Information Report (PIR) 75-07, Yard Area Contamination, dated

7. PIR 81-09, "Contamination of Yard during Reactor Head Removal" dated June 12, 1981.

8. PIR 94-03," Leakage from Frozen Fuel Chute De-watering Line." dated October 17, 1994.

9. PIR 94-09, "Leakage from Frozen NST Telltale Lines," dated February 18, 1994.

10. YNPS Decommissioning Plan, Rev. 0.0.

11. "Radionuclides for Building Surfaces and Soil DCGL Determinations," YA-REPT-00-001-03 Page 5 of 5

xU-PageI of I Table 1 Sum of Fractions OOTL13 -- Soil ' 'I Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 84 0G002-038 OG0O2GUFD038 0.024 83 0G002-037 OG0O2GUFDO37 0.005 79 0G002-031 OG0O2GUFDO31 0.031 66 0G002-017 OG0O2GUFDO17 0.004 63 0G002-014 OG0O2GUFDO14 0.008 62 0G002-013 OG0O2GUFDO13 0.010 Min 0.004 Max 0.031 Mean 0.014

'K ,>

C-  :

Table 2 Page I of 1 P

Statistical Data Summary - OOL13 -- Soil Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 8 8 0.890 0.109 0.774 1.073 - 0.875 Ag-108m pCi/g I 10 0.031 0.031 0.031 0.031 Ag-I lOm pCi/g 0 9 0.000 Am-241 pCi/g 0 9 0.000 Ba-133 pCi/g 0 1 0.000 Bi-212 pCilg 7 8 0.966 - 0.297 0.619 1.510 0.925 Bi-214 pCi/g 8 8 0.508 0.085 0.384 0.642 0.497 Ce-144 pCi/g 0 9 0.000 Co-58 pCi/g 0 11 0.000 Co-60 pCi/g 0 11 0.000 Cs-134 pCi/g 2 11 0.161 0.069 0.112 0.209 0.161 Cs-137 pCi/g 5 11 0.074 0.022 0.049 0.097 0.077 Fe-59 pCi/g 0 9 0.000 K-40 pCi/g 8 9 17.785 1.333 15.680 19.610 17.705 Mn-54 pCi/g 0 10 0.000 Nb-95 pCi/g 0 9 0.000 Pb-212 pCi/g 8 8 0.830 0.136 0.654 1.022 0.846 Pb-214 pCi/g 8 8 0.537 0.090 0.392 0.615 0.563 Ra-226 pCi/g 3 5 1.557 0.377 1.196 1.949 1.527 Ru-103 pCi/g 0 9 0.000 Ru-106 pCi/g 0 9 0.000 Sb-124 pCi/g 1 9 0.079 0.079 0.079 0.079 Tl-208 pCi/g 7 7 0.866 0.105 0.690 1.012 0.897 Zn-65 pCi/g 0 9 0.000 Zr-95 pCi/g 0 9 0.000

a-Pagel of I Table 3 Summary of Detected Results Above Criteria OOL-13 -- Soil Yankee Nuclear Power Station Rowe, MA DCGL_Soil

1. Sample Criterion # Detects Above Maximum Parameter # Detects Results Concentration Units Criterion Detected Ac-228 8 8 pCilg 0 1.07 Ag-108m 1 10 8.52 pCilg 0 0.03 Ag-l l0m 0 9 pCilg 0 Amn241 0 9 44.35 pCilg 0 Ba- 133 0 1 pCilg 0 Bi-212 7 8 pCi/g 0 1.51 Bi-214 8 8 pCi/g 0 0.64 Ce- 144 0 9 pCilg 0 Co-58 0 11 pCi/g 0 Co-60 0 11 4.84 pCi/g 0 Cs-134 2 11 6.71 pCi/g 0 0.21 Cs-137 5 11 12.24 pCilg 0 0.10 Fe-59 0 9 pCi/g 0 K-40 8 9 pCi/g 0 19.61 Mn-54 0 10 21.66 pCi/g 0 Nb-95 0 9 pCi/g 0 Pb-212 8 8 pCilg 0 1.02 Pb-214 8 8 pCilg 0 0.61 Ra-226 3 5 pCilg 0 1.95 Ru- 103 0 9 pCi/g 0 Ru-106 0 9 68.21 pCilg 0 Sb-124 1 9 pCilg 0 0.08 TI-208 7 7 pCilg 0 1.01 Zn-65 0 9 pCi/g 0 Zr-95 0 9 pCi/g 0

Table 4 PagelI of 3 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key)' IA-2 (619) OF-240 (408) 0G002-013 (62) 0G002-014 (63) OG002-015 (64)

Sample ID IATS-2 ' OFTS-240 a: OGO02GUFD013 OGO02GUFDO14 : OGO02GUFDO15 Date Sampled 5/17/1993 11/22/1994 7/8/1998 7/8/1998 7/8/1998 '

Ac-228 0.7735 0.9068 0.9993 Ag-108m 0.044 UM 0.03129 -0.03025 U -0.008048 U Ag-110m' 0.001331 U -0.01843 U -0.008517 U Am-241 OU OU OU Ba-133 Bi-212 0.4674 U' 1.51 1.058 Bi-214 0.4332 0.553 0.4998 Ce-144  ; 0.1533 U 0.04966 U -0.1703 U Co-58 0.073 UM 0.056 UM -0.02375 U -0.02474 U -0.02612 U Co-60 0.0775 UM 0.0844,UM -0.009965 U 0.0306 U -0.01432 U Cs-134 0.069 UM 0.052 UM 0.01661 U 0.01187 U 0.02209 U Cs-137 0.121 UM 0.0722 UM '0.07739 0.09679 0.02968 U Fe-59 -0.007939 U -0.02551 U -0.00844 U K-40 15.68 17.05 16.95 Mn-54 0.069 UM 0.02249 U 0.004562 U 0.02913 U Nb-95 0.03736 U -0.005617 U 0.03216 U Pb-212 '0.6768 0.9007 1.022 Pb-214 0.4066 0.61 0.5382 Ra-226 1.527 Ru-103' 0.008948 U -0.009411 U 0.02391 U Ru-106 -0.1111 U 0.2286 U -0.2612 U Sb-124 0U -0.03363 U -0.03252 U Tl-208 0.9062 0.8972 Zn-65 -0.08543 U -0.05273 U -0.1507 U Zr-95 0.02763 U 0U 0.05608 U SOF 0.01 0.008 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

a-Table 4 Page 2 of 3 Rad OOL-13 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key):. 0G002-016 (65) 0G002-017 (66) ogO02-018 (67) , 0G002-031 (79) 0G002-037 (83)

Sample ID: OG002GUFDO16 OGO02GUFD017 ogOO2gufdO18 OGO02GUFDO31 OGO02GUFDO37 Date Sampled 7/9/1998 7/9/1998 7/9/1998 7/13/1998 10/2111998 Ac-228 1.073 0.8433 0.7939 0.7921 Ag-108m 0.001574 U 0.006754 U -0.01142 U -0.0003995 U -0.0292 U Ag-110m 0.01011 U -0.01582 U -0.03246 U -0.003053 U 0.01136 U Am-241 0U 0U 0U 0U 0U Ba-133 0.03129 U Bi-212 0.8011 0.9249 0.6189 1.114 Bi-214 0.6423 0.5956 0.3841 0.4943 Ce-144 -0.1341 U -0.009145 U -0.04709 U 0.08107 U 0.1923 U Co-58 -0.015 U -0.01445 U 0.001596 U -0.018 U 0.005845 U Co-60 -0.01306 U -0.03454 U -0.01337 U -0.03563 U 0.01565 U Cs-134 0.08482 U 0.008715 U 0.00976 U 0.2093 -0.3099 U Cs-137 0.02288 U 0.04851 0.0303 U -0.01 161 U 0.05527 Fe-59 0.03532 U -0.05045 U -0.02137 U 0.03977 U 0.02838 U '

K-40 18.36 19.61 16.94 0 U 18.58 Mn-54 0.03238 U -0.01408 U -0.004649 U -0.01153 U 0.01687 U Nb-95 0.01842 U 0.01541 U -0.007066 U 0.01195 U -0.008347 U Pb-212 0.7282 0.9284 0.7913 0.6539 Pb-214 0.5882 0.606 0.3923 - 0.536 Ra-226 1.444 U 1.949 1.196 Ru-103 0.01053 U 0.003127 U 0.006661 U 0.002869 U -0.008316 U Ru-106 0.1809 U -0.02029 U 0.1926 U -0.2836 U 0.2504 U Sb-124 0.01318 U 0.02365 U 0.04011 U 0.07927 0.01446 U TI-208 0.771 0.8781 0.6899 1.012 Zn-65 -0.1494 U -0.08548 U -0.07574 U 0.05636 U -0.06415 U Zr-95 -0.004463 U 0.01112 U 0.03941 U -0.07504 U 0.0165 U SOF 0.004 1 0.031 0.005 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 3 of 3 Rad OOL-13 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G002-038 (84)

Sample ID OGO02GUFDO38 Date Sampled 10/21/1998 Ac-228 0.9404 Ag-108m 0.01046 U Ag-110m -0.0008834 U Am-241 0U Ba-133 Bi-212 0.7342 Bi-214 0.4647 Ce-144 -0.0234 U Co-58 -0.02077 U Co-60 0.03771 U Cs-134 0.1124 Cs-137 0.09251 Fe-59 -0.09038 U K-40 19.11 Mn-54 0.01855 U Nb-95 0.00106 U Pb-212 0.9354 Pb-214 0.6149 Ra-226 0.9387 U Ru-103 -0.007747 U Ru-106 -0.1201 U Sb-124 0.0312 U TI-208 0.9078 Zn-65 0.04341 U Zr-95 0.05545 U SOF 0.024 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Historical Site Assessment and Classification'Summary Survey-Area Name: US Gen. Wheeler Brook Frontage Designator: 00-14 Survey Area Description ,

Survey area OOL-14 consists of US Gen. owned land area that lies south of the and up slope from H T and W railroad track location in OOL-13. Survey area OOL,14 contains about 2398 square meters of soil surface area.

Survey area OOL-14 is bounded by OOL-13 on the north, OOL,15 and OOL-08 on the east, 00L08 on the south and on the west.

There are no sub-surface systems that traverse or connect within survey area OOL-14.

Items of note located within or adjacent to survey area OOL-14 include:

• The various historical location of the security fence.

• The temporary, propane storage tanks Page I of 4

a-Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Wheeler Brook Frontage Designator: 00-14 Survey Area History Survey area OOL-14 is not part of the RCA. There are no radioactive systems present in OOL-14. Survey area OOL,14 was not used for storing radioactive material or processing or packaging radioactive waste.

Surveys Area OOL- 14 represents a buffer zone around the Class 1 land survey area OOL, 13.

Modifications performed at the YNPS site during years of operation that changed the configuration of OOL- 14 include:

• Discontinuance of the H T and W railroad line.

• Modifications to the security perimeter fence.

• Installation of the temporary propane tanks.

Scoping/Characterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan (Ref 1).

Decommissioning No decommissioning activities have been performed for survey area OOL- 14.

Page 2 of 4

Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Wheeler Brook Frontage Designator: 00L-14 Findings Survey area 00L-14 is a land area that is located in the non-RCA portion of the site.

Survey area 00L-14 is assumed minimally impacted by site activities due to the fact that it is at a distance from the RCA was not accessible by vehicle traffic and is up slope from' adjacent Class 1 survey area. Survey area OOL- 14 is likely to contain residual radioactivity concentrations at a small fraction of DCGL.

The radionuclide mix likely to be present in OOL-14 includes all radionuclides identified in the radioactive systems of the plant (Ref 2). The primary radionuclides of concern for survey area 00OL14 are Co-60, Cs-137, Ag-108m, Sr-90 and tritium.

Current Status Survey area OOL-14 potentially may be further impacted by continued decommissioning activities.

A soil sample location map (Figure 15) has been prepared to show the distribution of sampling locations in OOL- 14. Only samples representative of soils still present are included on the map (samples of soils representative of soils removed during remediation activities are not presented). One survey media was assessed in 00Lk 14, Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for 00.L 14 is presented at the end of Table 1 for each survey medium. The results are summarized below.

Soil: Mean SOF is 0.014.

Maximum SOF for a single soil sample is 0.030. (key# 912)

Minimum SOF for a single soil sample is 0.004. (key# 914)

ClassificationStatement Based upon the historical use and radiological conditions associated with this survey area OOL-14 is identified as a Class 3 area.

Page 3 of 4

Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Wheeler Brook Frontage Designator: OOL-14 Drawings 9699-FY-5A Figure 7- 1A References

1. YNPS Decommissioning Plan, Rev. 0.0

2. "Radionuclidesfor Building Surfaces and Soil DCGL Determinations," YA-REPT-

_ .00-001-03 Page 4 of 4

Page I of I Table I Sum of Fractions 001,14 -- Soil Yankee Nuclear Power Station Rowe, MA Station Key Station Sample ID Sum Of Fractions 911 0G009-003 0GO09GUFU003 0.011 914 0G009-006 OGO09GUFDO06 0.004 912 0G009-004 OGO09GUFD0O04 0.030 910 0G009-002 OGO09GUFDO02 0.020 76 ogOO2-027 ogOO2gufdO27 0.006 Min 0.004 Max 0.030 Mean 0.014

Table 2 Page l of I Statistical Data Summary - OOL14 -- Soil Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 8 8 0.777 0.276 0.302 1.172 0.773 Ag-108m pCi/g 0 8 0.000 Ag-i lOm pCi/g 0 8 0.000 Ain-241 pCi/g 0 8 0.000 Bi-212 pCi/g 5 7 0.901 0.277 0.572 1.336 0.868 Bi-214 pCi/g 8 8 0.432 0.092 0.229 0.517 0.459 Cc-144 pCi/g 1 8 0.358 0.358 0.358 0.358 Co-58 pCi/g 0 8 0.000 Co-60 pCi/g 1 8 0.042 0.042 0.042 0.042 Cs-134 pCi/g 0 8 0.000 Cs-137 pCi/g 5 8 0.149 0.099 0.053 0.266 0.108 Eu-152 pCi/g 0 1 0.000 Fe-59 pCi/g 0 8 0.000 K-40 pCi/g 8 8 16.910 2.600 11.200 19.780 17.650 Mn-54 pCi/g 1 8 0.039 0.039 0.039 0.039 Nb-95 pCi/g 0 8 0.000 Pb-212 pCi/g 8 8 0.727 0.282 0.116 1.112 0.773 Pb-214 pCi/g 8 8 0.482 0.113 0.208 0.552 0.518 Ra-226 pCi/g 2 4 2.537 0.485 2.194 2.880 2.537 Ru-103 pCi/g 0 8 0.000 Ru-106 pCi/g 0 8 0.000 Sb-124 pCi/g 0 8 0.000 Sb-125 pCi/g 0 2 0.000 TI-208 pCi/g 8 8 0.734 0.281 0.128 1.049 0.790 Zn-65 pCi/g 0 8 0.000 Zr-95 pCi/g 0 8 0.000

' '( (_

Pagelof I Table 3 Summary of Detected Results'Above Criteria OOL-14--Soil Yankee Nuclear Power Station Rowe, MA DCGL_Soil

1. Sample Criterion # Detects Above Maximum Parameter #Detects Results Concentration Units ' Criterion Detected Ac-228 pCilg ' 1.17 Ag-108m , 8.52 pCilg Ag-I l Om pCilg 0 Am-241 44.35 pCi'g 0 Bi-212 pCilg 0 1.34 Bi-214 *; I I pCilg 0 0.52 Ce- 144 pCilg 0.36

• 0 Co-58 IpCilg I0 Co-60 ,4.84 pCilg 0.04 0

Cs-134 ,6.71 pCilg 0 Cs-137 12.24 pCi/g 0.27 Eu- 152 :12.06 pCilg 0 Fe-59 pCi/g K-40 pCilg 0 19.78 Mn-54 21.66 pCi/i 0 0.04 Nb-95 pCilg 0 Pb-212 pCilg 0 'l11 Pb-214 pCilg 0 0.55 Ra-226 pCi/g 0 2.88 Ru-103 pCilg 0 Ru-106 68.21 .pCilg 0 Sb-124 pCilg 0 Sb-125 37.73 pCi/g 0 TI-208 pCi/g 1.05

.0 Zn-65 pCilg

• 0 Zr-95 pCilg

a-Table 4 Page I of 2 Rad OOL-14 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) ogOO2-022 (71) ogOO2-027 (76) 0G009-001 (909) 0G009-002 (910) 0G009-004 (912)

Sample ID ogOO2gufdO22 ogOO2gufdO27 OGO09GUFDO01 OGO09GUFDO02 OG009GUFDO04 Dat Sampled 7/9t1998 ! 7/13t1998 7130/1998 713011998 713011998 Ac-228 0.776 1.172 0.302 0.915 0.769 Ag-108m 0.01652 U -0.01276 U 0U -0.0106 U -0.0105 U Ag-110m 0.01969 U -0.02051 U 0.0125 U -0.0017 U -0.0146 U Am-241 0U 0U 0U 0U 0U Bi-212 54.89 U 1.336 47.6 U 0.81 Bi-214 0.5168 0.4797 0.229 0.394 0.474 Ce-144 -0.2941 U -0.07008 U -0.0 157 U 0.0795 U -0.115 U Co-58 0.004544 U 0.02031 U -0.00636 U 0.0275 U 0.00831 U Co-60 0.003204 U 0.01342 U -0.00335 U -0.00311 U 0.042 Cs-134 -0.01192 U 0.01469 U -0.0286 U -0.0829 U -0.166 U Cs-137 0.03321 U 0.07292 0U 0.243 0.266 Eu-152 Fe-59 -0.07798 U 0.008654 U -0.0388 U -0.00747 U 0.0277 U K-40 18.1 19.78 11.2 17.2 18.2 Mn-54 -0.01432 U 0.03802 U 0.0109 U 0.0186 U -0.0449 U Nb-95 -0.006838 U 0.02646 U -0.00289 U -0.0291 U 0.0588 U Pb-212 0.8174 1.112 0.116 0.728 0.68 Pb-214 0.5518 0.5197 0.208 0.487 0.495 Ra-226 2.194 1.58 U Ru-103 -0.02547 U 0.01374 U -0.00637 U 0.0132 U -0.0669 U Ru-106 -0.0417 U 0.09343 U -0.0408 U 0.202 U 0U Sb-124 -0.1096 U -0.04555 U 0.018 U -0.0366 U -0.0256 U Sb-125 -0.152 U -0.00643 U TI-208 0.8537 1.049 0.128 0.708 0.608 Zn-65 -0.01941 U 0.013 U -0.00332 U 0.13 U 0.0658 U Zr-95 -0.00458 U 0.01863 U -0.0141 U 0.0145 U -0.00434 U SOF 0.006 0.02 0.03 K\-'

U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 2 Rad OOL-14 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) 0G009-006 (914) 0G009-003 (911) 0G009-007 (915)

Sample ID OGO09GUFDO06 OGO09GUFU003 OGO09GUFU007 Date Sampled 7/30/1998 7/30/1998 7/30/1998 Ac-228 0.756 1.02 0.508 Ag-108m 0.00696 U 0.0229 U -0.00787 U Ag-110m 0.00829 U 0.0365 U -0.00484 U Am-241 0U 0U 0U Bi-212 0.868 0.921 0.572 Bi-214 0.502 0.419 0.443 Ce- 144 0.00188 U 0.358 0.0298 U Co-58 -0.0406 U -0.0328 U 0.00318 U Co-60 -0.0034 U -0.00211 U -0.0154 U Cs-134 -0.0673 U -0.111 U -0.0792 U Cs-137 0.0532 0.108 -0.0114 U Eu-152 0.0864 U Fe-59 -0.13 U 0.0218 U -0.0198 U K-40 17.3 18 15.5 Mvfn-54 -0.00796 U 0.0393 0.000875 U Nb-95 0.0299 U 0.0326 U 0.0181 U Pb-212 0.827 0.848 0.689 Pb-214 0.517 0.545 0.533 Ra-226 1.39 U 2.88 Ru-103 -0.00608 U -0.0289 U -0.034 U Ru-106 0.0207 U 0.181 U 0.193 U Sb-124 0.00336 U 0U 0.0355 U Sb-125 TI-208 0.726 0.915 0.883 Zn-65 -0.112 U 0.0918 U 0.0842 U Zr-95 -0.00565 U 0.000841 U 0.0148 U SOF 0.004 0.011 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Historical Site Assessment and Classification-Summary Survey AreaName:USGen.Sherman-ReservoirEastShoreline Designator 00L15 Survey Area Description Survey area 0OL-15 consists of US Gen. owned land'area that lies along the east shoreline of Sherman Reservoir. Survey area OOL-15 contains about 2704 square meters of soil surface area.

Survey area 00L-15 is bounded by, non-impacted US Gen. Owned property on the north, OOL-08 on the east, OOL-13 and OOL-14 on the south and OOL-01 on the west.

There are no sub-surface systems that traverse or connect within survey area OOL,15.

Items of note located within or adjacent to survey area OOL-15 include:

• The various locations of the security fence

• The H T and W crossing of Wheeler Brook.

Page I of 4

XU-Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Sherman Reservoir East Shoreline Designator: OOL-15 Survey Area History Survey area OOL- 15 is not part of the RCA. There are no radioactive systems present in OOL-15.Survey area OOL-15 was not used for storing radioactive material or processing or packaging radioactive waste.

Surveys Area OOL-15 represents a buffer zone around the Class 1 land survey area OOL-13.

Modifications performed at the YNPS site during years of operation that changed the configuration of OOL- 15 include:

• Modifications to the security perimeter fence

• Repair of the H T and W crossing at Wheeler Brook after washout Scoping/Characterization Scoping surveys were performed and data collected used to develop the YNPS Decommissioning Plan (Ref 1).

Decommissioning No decommissioning activities have been performed for survey area OOL- 15.

Page 2 of 4

Historical Site Assessment and Classification Summary Survey Area Name: US Gen. Sherman Reservoir East Shoreline -Designator: OOL-15 Findings Survey area OOL- 15 is a land area that is located in the non-RCA portion of the site.

Survey area OOL-15 is assumed minimally impacted by site activities due to the fact that it is at a distance from the RCA was not accessible by vehicle traffic and is outside of the YNPS site boundary. Survey area OOL-15 is likely to contain residual radioactivity concentrations at a small fractbn of DCGL.

The radionuclide mix likely to be present in OOL- 15 includes all radionuclides identified in the radioactive systems of the plant (Ref 2). The primary radionuclides of concern for survey area OOL- 15 are Co-60, Cs- 137, Ag- 108m, Sr-90 and tritium.

CurrentStatus Survey area OOL-15 potentially may be further impacted by continued decommissioning activities.

A soil sample location map (Figure 16) has been prepared to show the distribution of sampling locations in OOk 15. Only samples representative of soils still present are included on the map (samples of soils representative of soils removed during remediation activities are not presented). One survey media was assessed in OO- 15, Soil. The results and analyses (Tables 1-4 in this section) of the samples plotted as "key numbers" on the map represent the radiological status at the time of sampling (a period spanning several years) as sums of fractions of the soil DCGL.

Only those samples with detectable results of the radionuclides of concern appear in Table 1. For this reason the number listed as minimum does not include samples that did not have detectable quantities of the radiological substances of concern. An assessment of the maximum, minimum and mean sum of fractions (SOF) for OOL- 15 is presented at the end of Table 1 for each survey medium. The results are summarized below.

Soil: Mean SOF is 0.012.

Maximum SOF for a single soil sample is 0.0 17. (key# 3070)

Minimum SOF for a single soil sample is 0.007. (key# 3071)

ClassificationStatement Based upon the historical use and radiological conditions associated with this survey area OO-15 is identified as a Class 3 area.

Page 3 of 4

Historical, Site Assessment and Classification Summary Survey Area Name: US Gen., Sherman Reservoir East Shoreline Designator: OOL-15 Drawings 9699-FY-5A Figure 7-lA References .

1. YNPS Decommissioning Plan, Rev. 0.0.

2. "Radionuclides for Building Surfaces and Soil DCGL Determinations," YA-REPT-00-001-03 Page 4 of 4

Page 1 or 1 Table 1

• Sum of Fractions OOL-15 -- Soil Yankee Nuclear Power Station Rowe, AIA Station Key Station Sample ID Sum Of Fractions 3071 SE416 SE416 0.007.

3070 SE415 SE415 0.017 69 ogOO2-020 ogOO2gufdO2O 0.013 Min 0.007 Max 0.017 Mean 0.012

Table 2 Page I of 1 Statistical Data Summary - OOL-15 -- Soil Yankee Nuclear Power Station Rowe, MA Parameter Units # Detects # Sample Mean Std. Dev Minimum Maximum Median Results Ac-228 pCi/g 5 5 0.873 0.166 0.706 1.061 0.798 Ag-108m pCi/g 0 5 0.000 Ag-I lOm pCi/g 0 5 0.000 Am-241 pCi/g 0 5 0.000 Bi-212 pCi/g 4 5 1.128 0.338 0.722 1.543 1.123 Bi-214 pCi/g 5 5 0.482 0.131 0.306 0.629 0.515 Ce-144 pCi/g 0 5 0.000 Co-58 pCi/g 0 6 0.000 Co-60 pCi/g 0 6 0.000 Cs-134 pCi/g 1 6 0.085 0.085 0.085 0.085 Cs-137 pCi/g 2 6 0.144 0.086 0.083 0.204 0.144 Fe-59 pCi/g 0 5 0.000 K-40 pCi/g 5 5 15.808 4.468 8.419 19.990 17.540 Mn-54 pCi/g 0 6 0.000 Nb-95 pCi/g 0 5 0.000 Pb-212 pCi/g 5 5 0.844 0.250 0.595 1.184 0.857 Pb-214 pCi/g 5 5 0.480 0.149 0.315 0.656 0.546 Ra-226 pCi/g 3 3 2.913 0.360 2.500 3.161 3.078 Ru-103 pCi/g 0 5 0.000 Ru-106 pCi/g 0 5 0.000 Sb-i 24 pCi/g 0 5 0.000 Sb-125 pCi/g 0 1 0.000 TI-208 pCi/g 5 5 0.762 0.222 0.547 1.085 0.727 Zn-65 pCi/g 0 5 0.000 Zr-95 pCi/g 0 5 0.000

(. (~.

Pagel of 1 Table 3 Su mmary of Detected Results Above Criteria 00L145 -- Soil (ankee Nuclear Power Station Rowe, MIA DCGL_Soil

1. Sample Criterion # Detects Above Maximum Parameter. ' # Detects Results Concentration Units Criterion Detected Ac-228 5 pCi/g 0 1.06 Ag-108m 0 5 8.52 pCi/g 0 Ag-I l Om 0 5 pCi/g 0 5

Am-241 0 5 44.35 pCi/g~ 0 Bi-212 4 5 pci/g 0 1.54 Bi-214 5 5 pCi/g 0 0.63 Ce-144 0 S pCi/g 0 Co-58 0 6 pCi/g 0 Co-60 0 6 4.84 pCi/g 0 Cs-134 I 6 6.71 *:pci/g 0 0.08 Cs-137 2 O 6 12.24 pci/g 0 0.20 Fe-59 0 .5 pCi/g

• 0 K-40 5 5 *pCi/g 0 19.99 Mn-54 0 6 21.66 .pCi/g. 0 Nb-95 0 5 pCi/g 0 Pb-212 5

• 0 1.18 Pb-214 5 5 pCi/g 0 0.66 Ra-226 3 3 0 3.16 Ru-103 0 5 pCi/g 0 Ru- 106 .. 0 5 68.21 pci/g 0 Sb-I 24 . 0 5 pCi/g 0 Sb-125 0 1 37.73 Ipci/g 0 TI-208 5 S pCi/g 0 1.09 Zn-65 0 5 pCi/g 0 Zr-95 0 5 pci/g 0

a-Table 4 Page 1 of 2 Rad OOL-15 -- Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) OF-72 (348) ogOO2-019 (68) ogO02-020 (69) SE414 (3069) SE415 (3070)

Sample ID OF17S-72 ogOO2gufdO19 ogOO2gufdO2O SE414 SE415 Date Sampled 6/14/1993 7/9/1998 7/9/1998 11/5/1997 11/5/1997 Ac-228 0.7057 1.042 0.7578 0.798 Ag-108m 0.01852 U -0.002205 U -0.003747 U -0.00837 U Ag-I 1m 0.0247 U -0.004417 U 0.00739 U 0.03869 U Am-241 0U OU OU OU Bi-212 0.722 1.071 1.07 U 1.175 Bi-214 0.629 0.5667 0.394 0.3063 Ce-144 0.02933 U 0.1663 U -0.06047 U -0.07843 U Co-58 0.091 UM -0.02064 U -0.0256 U -0.006475 U -0.000000001397 U Co-60 0.11 UM 0.00275 U -0.007521 U -0.03913 U 0.02025 U Cs-134 0.079 UM -0.01002 U 0.08459 -0.01043 U -0.008865 U Cs-137 0.0896 UM 0.002392 U 0U 0.0112 U 0.2043 Fe-59 -0.02786 U -0.07886 U -0.07242 U 0.04351 U K-40 19.99 17.54 17.9 8.419 Mn-54 0.098 UM 0.007817 U 0.02952 U 0.02374 U 0.006693 U Nb-95 -0.1191 U -0.008212 U -0.02008 U -0.0115 U Pb-212 0.8572 0.9735 0.6089 0.595 Pb-214 0.5503 0.5456 0.3151 0.334 Ra-226 2.5 3.078 Ru-103 -0.01009 U -0.001304 U -0.02134 U 0.0001909 U Ru-106 0.08412 U 0.01427 U -0.03816 U 0.2087 U Sb-124 0.06145 U 0.001924 U 0.002357 U -0.0188 U Sb-125 -0.06493 U Tl-208 0.7267 0.8721 0.5777 0.5473 Zn-65 -0.04237 U -0.05344 U 0.07287 U -0.04716 U Zr-95 0.01733 U -0.01158 U 0.04307 U 0.053 U SOF 0.013 0.017 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed

Table 4 Page 2 of 2 Rad OOL Soil (pCi/g)

Yankee Nuclear Power Station Rowe, MA Station (Key) SE416 (3071)

Sample ID SE416 Date Sampled 11/5/1997 Ac-228 1.061 Ag-108m -0.01787 U Ag-110m -0.02087 U Am-241 0U Bi-212 1.543 Bi-214 0.5149 Ce-144 -0.07843 U Co-58 0.01423 U Co-60 0.009853 U Cs-134 0.03986 U Cs-137 0.08305 Fe-59 -0.01904 U K-40 15.19 Mn-54 0.00541 U Nb-95 -0.001705 U Pb-212 1.184 Pb-214 0.6564 Ra-226 3.161 Ru-103 0.0006893 U Ru-106 0.05482 U Sb-124 -0.0238 U Sb-125 Tl-208 1.085 Zn-65 -0.0977 U Zr-95 0.02388 U SOF 0.007 U-not detected (value is not greater than 2 sigma); UM-nondetect (value is equal to MDA)

Soil Basic Data 12/15/2003 Blank results indicate chemical not analyzed