ML19210B854

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Environ Rept for Facility
ML19210B854
Person / Time
Site: Crane  
Issue date: 09/01/1970
From:
Metropolitan Edison Co
To:
Shared Package
ML19210B855 List:
References
ENVR-700901, NUDOCS 7911120552
Download: ML19210B854 (53)
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METP.0POLITAN EDISON COMPANT THREE MILE ISLAND NUCLEAR STATION

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EN7IRONMENTAL REPORT Septe::6er 1,1970 8

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GENERAL DESCRIPTION Metropolitan Edison Company has been conducting a pre-operational environmental radioactivity survey in the vicinity of the Three Mile island site since January 1968. This survey was undertaken to provide data which will serve as a basis for comparing environmental radio-activity levels after the two plants are in operation. The survey program has been in progress for over two years during which ti=e a total of 317 samples have been collected.

Meetings were held with the Commonwealth of Pennsylvania's Department of health, Radiological Health Section and an outline of the program was submitted to the State Health Physicist for ce==ents and/orrecommendations. These =eetings with the State included a site visit, discu,ision of instru=ent sensitivity, fish sampling locations. It was decided that the State will be sent a sa=ple of Susquehanna River water for analysis on a monthly basis.

Metropolitan Edison Ccmpany routinely collects and perfoms the analyses on the samples collected. Additional samples are collected on a quarterly basis r.ad forwarded to an outside vendor for analysis.

The environmental survey includes the folicwing samples and sample locations:

Well Water Well water is sa= pled and analyzed for gross alpha and gross beta-ga=ma activity. Four locations within a five =ile radius of

e of the plant site were sa= pled every 12 weeks.

River Water Surface water of the Susquehanna River is taken on the west side of Three Mile Island ever7 4 weeks. These sa=ples are analyzed for gross alpha and gross beta-ga==a activity.

Ri ter Sedi=ent River sedi:: lent is collected on the west side of Three Mile Island and is analyzed for gross alpha and gross beta-ga==a activity every 4 weeks.

Fish Fish sa=ples are collected in the York Haven Da= every twelve weeks. The fish sa=ples are sent to an outside concern and analyzed LO, Ca 37, Co60, Zn 5, 1131, and Co5a, l

6 for gross alpha, gross beta, K Soil Soil sa=ples, one on-site and four off-site locations, are analyzed for gross alpha and gross beta-ga==a activity every 12 weeks.

Vegetation Vegetation consisting pri=arily of grass is sa= pled at one on-site and four off-site locations. These sa=ples are analyzed for gross beta-ga==a activity every 12 weeks.

Milk Milk sa=ples are collected periodically from local dairies in the Three Mile Island vicinity. The milk sa=ples are sent to an outside vendor and analyzed for gross alpha, gross beta, K40, Sr90, I131, and Cs137

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- BIOIDGICAL SURVET OF THE SUSQUEHANNA RIVER In addition to the environmental radioactivity survey, Metropo-litan Edison Cc=pany has retained Dr. Charles B. Wurtz who has con-ducted a biological survey based on macroinvertebrate organis=s in the Susquehanna River. This survey has been conducted in the vicinity of the York Haven Das in 1967, 1968, and 1969 Metropolitan Edison Company has entered into an agreement with Dr. Wurtz to continue his biological survey for the year 1970.

Enclosed in Section 7 are the results of the survey.

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SECTION II ANALYSIS SCHEDULE A ccmplete sample analysis is performed during each twelve-week sample cycle. Certain analyses are performed erly once in the twelve week cycle while as many as three identical analyses were performed during the sa=e time interval.

Every four weeks, river water and river sediment are sampled and analysed. Well water, fish, soil, vegetation and milk samples are col-lected and analyzed every 12 weeks.

Table II-2 is the analysis schedule for the various samp'.e media.

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TABLE II-l In House Analysis Schecule Pre-Operation Environmental Radiation Survey Three Mile Island Nuclear Station Metropolitan Edison Ccmpany Samele Analysis Performed Analysis Frecuency River Water Gross Alpha & Gross Beta Every 4 weeks River Sediment Gross Alpha & Gross Beta Ever/ 4 weeks Well Water Gross Alpha & Gross Beta Every 12 weeks Soil Gross Alpha & Gross Eeta Every 12 weeks Vegetation Gross Beta Every 12 weeks 1550 050

TABLE II-2 Vendor Analysis Schedule Pre-Operational Environmental Radiation Survey Three Mile Island Nuclear Station Metropolitan Edisen Company Samole Analysis Performed Analys'.s Frecuency River Water Gross Alpha, Gross Beta, Every 12 weeks

[0,ym, Co58 65

, Co, Zn River Sediment Gross Alpha, Gross Beta, Every 12 weeks

, Co, Zr95, Rul06 f0, Cs137, CoS8 Well Water Gross Alpha, Gross Seta, Every 12 weeks I

, Cs137, co60 l06 131

, Ru Soil Gross Alpha, Gross Beta, Every 12 weeks 30, Cs137, Co$, Co, Zr90, Rul06 Vegetation Gross Alpha, Gross Beta, Every 12 weeks l06

[0,g31, Cs137, Co, Ru Milk Gross Alpha, Gross Beta, Periodically Sr, [31, Cs137 Fish Gross Alpha, Gross Beta, Every 12 weeks 137, Co, Zn65, 3 31, Co38 Co 590 Ori a

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Section III RADICIDGICAL A?M.LITICAL PROCEDUr7S All analyses were perfomed by Metropolitan Edison personnel or an outside vendor in accordance with procedures described below.

ETROPOLITAN EDISON PS.CCEDUPES ALFHA AND BETA ACTIVITY IN VEGETATION Vegetation is cut into s:::all particles. Ten gram aliqouts are weigned and ashed in a =uffle furnace for one to two hours at 500*C. The ash is transferred to a stainless steel counting planchet and compacted i.e.:ly on the planchet by evaporation of the sample after moistening with a laboratory-aerosol. The sample is then counted for beta activity and alpha activity in a gas flow proportional counter. The sensitivity for Beta is 2.15x10-7 ue/gr.

and Alpha 1.02x10-8 ue/gr. at the 95% confidence level for a 10 grs= sa ple which is counted for 5 =inutes.

ALPHA AND BETA ACTIVITI IN SOIL AND SILT Soil sa=ples are dried, pulverized, and strained through a #20 sieve.

Aliqouts of 3 grams of the strained samples are weighed and transferred to stainless steel counting planchets. The samples are evenly ec=pacted on the planchets by evaporation with laboratory aerosol. The samples are then counted for alpha and beta activity in a gas flow proportional counter.

The sensitivity for beta is 7.21x10-7 ue/g and alpha is 3.45x10-8 ue/gr.at the 95% confidence level for a 3 gra= sample counted for 5 "utes.

ALPHA AND BETA ACTr/I"! IN RI7ER WATER & WELL WATER Cne liter water sa=ples are evaporatad in a beaker then transferred to a stainless steel counting planchets. The sanples are evenly compacted on the planchets by evaporation with laboratory aerosol.

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alpha and beta counted in a gas proportional counter. The sensitivity for alpha is 1.02x10-10 ue/ec for Beta 2.15x10'9 uc/cc at the 95% Confidence level for a one liter sample.

ALPHA AM) EETA ACTIVITY IN FISH The whole fish is cut intc s=all pieces and henogenized in a blender.

The tissue is ashed in a =uffle furnace for one hour at 500*C. The ash is transferred to a stainless steel countir4 planchet ard co=pacted evenly by evaporating to dryness with laboratory aerosol. The sample is then counted for. alpha ard beta activity in a gas flow proportional counter. The sensi-tivity for Beta is 2.15x10-7 ue/g. ard alpha is 1.02x10-8 ue/g. at the 95%

cenfidence level for a 10 gras' sample counted for 5 ninutes.

VENDOR CCUNTING TECHNIQUES Every twelve weeks sa=ples were sent to an cutiide vendor for radicanalysis.

The following are the radiological analytical procedures.

River Water and Well Water - Gross beta-a.'.pha Filter an aligout of the sa=ple througn type HA, 0.047 ns ~"14 pore

= mbrane. Fiace filter me=brane and residue in planchet for radio assay.

Evaporate the aliqout of the filtrate onto another planchet. Assay in an internal gas flow proportional counter. The sensitivity for alpha is 1 x 10-10 ue/cc for beta 2 x 10-10 ue/cc at the 95% confidence level for a 1 liter sa=ple.

Soil and Silt - Gross beta-alpha Prepare sa=ple by dryi.g in oven and t.ansfer to a tared planchet.

Deter." ne weight of portion to be analyzed. Assay in an internal gas flow proportional counter.

The sensitivity for cipha is 1:c 10~7 ue/gr.

for beta 2 x 10-7 ue/gr. at the 95% Confidence level.

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Vegetation.-l Gross beta & alpha Prepare the sample by grinding and then place in a =uffle oven and ash at h50*C. Transfer portion of ash to preweighed planchet and dete.~d.ne the weight of ash. Assay in an internal gas flow proportional counter.

The sensitivity for alpha is 1 x 10-7 ue/gr and beta 2 x 10-7 ue/grat the 95% Confidence level.

Fish - Gross beta The fish is ground, hc=ogeniced ar.d ashed at h50*C.

"'he ash sa=ple is transferred to a preweighed planchet. Beta e:itters are assayed in low-level, gas flow, thin windoe Geiger counters. The sensitivity for beta is 2 x 10-7 ue/gr at the 95% Confidence level.

F. ilk - Grcss beta and alpha Prepare sa=ple by drying in even at 450*C and transfer to a 2" planchet.

Deter =ine weight of portion to be ant.lyced. Assay in an internal gas flow proportional counter. The sensitivity for alpha is 1 x 10-10 ue/ce at the 95% Confidence level for a 1 liter sa=ple.

Gam spectrum analysis was performed by placing a Yarinelli Beaker over a NaI crystal and analyced by the procedure listed belcw.

GAMMA SPECTRUM ANAIYSIS FOR SPECIFIC ISOTOPI3

'dhen~a ec=puter program was used for ga=na spectrum analysis, a linear least-squares analysis of multice=penents of unknown spectra against 'cewn libra.7 standards at the sa=e gec=etry was used. The = ore i=portant optiens included the following:

1.

Mathe=atical ec=pensation fer instru=ent cero drift.

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Lthe=atical ec=pensation for instr = ent gain shift.

3.

Cubie-polyne=1al s=cethics routines for icw activity sa=ples.

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'deighing cptions to. stress activity lwel of greatest interest.

5 Channel clipping to stress energy regions of greatest interest.

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Print cut of actual data, calculated spectrum and residuals for each channel.

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Three-cycle, se=ilog plotting of the actual spectr.:m, calculated spectrum, and of residuals ce= posited for ease in ider.c.:.ficatien of nuclides and verification of the quality of fit.

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SECTION IV DATA FRCM OUTSIDE VLNDOR River Water March 10 October 21 July 10 June 12 March 20 (Readings in pei/1) 1970 1969 1969 1%8 1968 1.4 ~.7 74 1 0.2 1

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<.2 BI

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6.7 1 0.7 12 9 1 1.3 8.7 1 'a 9 94 12 K-40 4 120

< 12.0 4 120 500 1 25 4

6.1 {- 2.2 Zn-65 490

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< 9.0 Cs-137 4 7.0 47.0 4 7.0 I-131

( 6.0 g 6.0 4 6.0 4.0 Co-58 4 70 470 g70 50 Co-60

( 7.0 g 7.0

<70 7.0 Vegetatien March 10 October 25 August 10 (Readingsinpei/gr) 1970 1969 1968 o<.

6.1 1 31 5.3 1 2.6 B

192 1 6 462 1 4 6.8 1 3 K-40 3.1 1 1.0 23 1 1.0 8.9 1.5 C3-1:37.

< 0.1

<.1

.05 1.01 I-131 4 0.1 41 4 002 Co-60

< 0.2

<.2

<.003 Co-58

<.003 Ru-106

< 0.1 41 Fish March 10 October 25 June (Readingsinpei/gr) 1970 1969 1969 od

<.2

<42 4.1 B

23 41 5 - 6.0 2.47 1.11 Cs-137

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.11 1.01 Co-60

<.09 4.09 1 39.1.11 Co-58 4.07 4.07

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.02 Sy-90

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<.06

<.07 K-40

< 1. 2 Milk (Readings in pei/1)

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1549 1 110 1447;-100 Sy-90 12.3 1.08 11.4

.09 I-131

< l.0 4.7 1 1.1 K-40 1400 1 120 1315 t 110 Cs-L37 12.6 1 38 14.2 1 40

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9 DATA FRCM OUTSIDE VEIDCR Well Water March 10 October 25 (Readingsinpei/1) 1970 1969 O(-

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B 6.k + 1.0 4.'5 +.8 K-A0 4 HO c H0 I-131 4 6.0 c 6.0 Cs-137 470 470 Co-58

< 7.0 e70 Co 60

<70 4 7.0 Zn 65 (90

< 9.0 Soil Samoles March 10 October 21 (Readings in pci/gr) 1970 1969

. C4 15 3 + 6.1 113 + 5.6 B

371743 36.1 I L.5 K-40 4 1270 4-1270 Cs-137 2.8 + 1.E 2.6 + 1.1 Co.58 4-5.3 4 73 Co-60

< 0.2 c.2 Zr-95

< 0.2 42 Rti-106 40.3 g.3 Silt Samoles March 10 October 25 (Readingsinpc17gr) 1970 1969 d

18.3 + 2.1 7.6 + 3.4 B

20 3 2 2.1 9 5 7 2.0 K-LO 4 1270

< H.0 Cs-137 2 7 + 1.2 2.1 + 1.0 Co-58

4. 5.3 73 4

Co-60 4 0.2 4.2 Zr-95 4 0.2 4.2 Ru-106 403 43 15:0 059

SUSQUDIANNA RIVER WATIR GROSS BETA-GAMMA Lecatien Year Collected No. of Samles Range ue/mi West Shore 1968 12

< 3.3 x 10-3 of Three 1969 12

  • < l. 6 5 x 10-9 Mile Island 1970 6

41.67 x 10-9 SUSQUEHANNA CIER SEDIMHC GROSS SETA-GAM Location Year Colleeted No. of Samles Rance ue/rm West Bank 1968 12

< 3.3 x 109

  • 1.66 x 10-6 of Three 1969 12

< l.66 x 10-0 :to 7.95 1 2.5L x 1 Mile Island 1970 8

SOIL GRCSS BITA-GAMMA Location Year Collected No. of Sa.m les Range ue/cm North 1968 L

<3.3 x 10-5 1969 L

  • 42.5 x 10-6 1970

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<.7.17 x 10-7 to 8.7912.62 x 10-6 South 1968 4

43.3 x 10-3 1969 L

  • < 2. 5 x 10-6 1970 L

< 7.17 x 10-7 to 1.0 ;.27 x 10-5 East 1968 L

< 3.3 x 10-5 1969 L

  • < 2. 5 x 10-o to 1.2 +.9 x 10-5 1970 L

47.17 x 10-7 to 7.63 ; 2.61 x 10-6

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West 1968 L

43 3 x10?

1969 L

  • <2. 5 x 10-0 1970 4

47.17 x 10-7 to 7.95 2.6 x 10-5 Site 1968 L

< 3.3 - x 10 6 1969 L

  • < 2. 5 x 10-1970 L

/_7.17 x 10-7 to 8.35 ; 2.62 x 10-0

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FISH GP.0SS SETA-GAMMA Location Year Collected No. Of Sa=cles Range ue/r.

Susquehanna 1968 2

<3.3 x 10-6 River West 1969 All 1969 samples done by outside vender

_5 Side of Three 1970 2

  • 1.94 -f.344x10-2 to 2.hi.351x10 Mile Island SOIL GROSS ALPHA Location Yea' Collected No. Of Samoles Rance uci/en

' brth 1968 L

(2 3L x 10-J 1969 4

  • <8.25 x 10-8

_7 1970 4

1.48 2.0 x 10-7 to 4.6113.38 x 10 South 1968 4

42 3h x 10-0 1969 4

  • <S.25 x 10-3 1970 4

3 2111.29 x 10-7 to 4.9223.42 x 10-7 East 1968 4

(2 3L x 10-6 1969 A

  • <S.25 x 10-3 1970 L

(3.25x10-3 to 1.Si 2.26 x 10-7 West 1968 4

<2 3L x 10-0 8

1969 A

  • <8.25 x 17 go 5,37:1 6.67 x 10-7 3

1970 4

<3.25 x 17 to A.1323.26 x 10-7 Site 1968 4

42 3A x 10-0 1969 A

  • <a,25 x 10-3 1970 L

<l.86 x 10-* to 6.2 : 3.8A x 10-7 RIVER SEDEENT GRCSS ALPFA locatien Year Collected

.Io. of Sa=cles Rance uei/z

-6 Susquehanna 1968 12

< 2 3L x 10 River West 1969 12 4 3 72 - 5.78 x 10 7' to 7.0'- 7.L5x.16!.

1.99 2 Side of Three 1970 6

Mile Island

- 2.26 x 10-to 5.1-3.5;c 10 7

  • Installed instruxentation with greater sensitivity.

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RIVER WATER GROSS ALPHA Location Year Collected No. of Sa:::cles Range uci/el

< 3 34 x 10[

Susquehanna 1968 12 4 6.7 x 10-10 <,6.7 x 10-4.69 x 10-10 River West 1969 12 to 3.03 1 Side of Three 1970 10 Mile Island WELL WATER GROSS ALPFA Locatien-Year Collected No. of Samules Range uci/em

  • 46.7x10[{f North 1968 4

4 3 34 x 10 1969 4

f 1970 4

4. 6.7 x 10 South 1968 4

4 3 3h x 10-1969 4

  • < 6. 7 x 10 1970 4

4.6.7 x 10-U

  • 46.7 x lo-"f 4 3 34 x 10,'

East 1968 4

1969 4

1970 4

< 6. 7 x 10-U to 7.45 I 6.6 x 10-10 West 1968 4

43 34 x 10-f 1969 4

  • < 6.7 x 10-17 1970 4

<6.7 x 10- U lJ90 00

s VEGETATION GROSS BETA-GA.WA Location Year Collected No. of Samoles Range ue/er.

North 1968 4

/ 3 3 x 10-0 to 7 1 x 10-6

  • < 2.4 x 10-6 t 1 4.22 !.85 x 10 $ o.21 t.12 x 10-1969 4

1970 4

t South 1968 4

< 3 3 x 10-6 to 5 05 x 10-6 1969 4

  • <2.19 x 10-0 to 1.23 !.12 x 10-5 1970 4

3 85 I.78 x 10-6 to 1 32 1 127 x 10-5 East 1968 4

<3 3 x 10-6 to 4 53 x 10-6 3 25 1.78 x 10-6 85 t 1 3 x 10-

  • (2.4 x 10-6 1969 4

to 9 to 1.14 1.122 x 10-5 1970 4

West 1968 4

<3 3 x 10-6 to 3 7 x 10-6 1969 4

  • <2.4 x 10-6 to c.25 1.09 x 10-6 1970 3

3 49 1.815 x 10-0 to 2.03 i.153 x 10-6 Site 1968 4

4 3 3 x 10-6 to 4.2 x 10-6 5 98 !.937 x 10-6 5 t.97 x 10

  • <2.19 x 10-6 to 6 1969 4

to 173 i.137 x 10-5 1970 4

WELL WATER GROSS BETA-GA.WA Locatiori Tear Collected No. of Sameles Range ue/ml North 1968

'A c3 7 x 10-8 1969 4

  • < 1.69 x 10-9 1970

< 1.14 x 10-9 South 1968 4

4 3 7 x 10-8 4

  • 4.1.69 x 10-9 1969 1970 41.14 x 10-9 East 1968 4

< 37 x 10-8 9

1969 4

  • <,1.69 x 109 1970

< 1.4 x 10-West 1968 A

4.3 7 x 10-8 1969 4

  • t.1.69 x 10-9 1970

< 1 33 x 10-9

  • Installed instrunentation with greater sensitivity.

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SECTION 7 The following Data is a biological survey of the Susquehanna River in the vicinity of York F.aven, Pa. (Three Mile Island) pre-pared for Metropolitan Edison Company and Pennsylvania Pcwer &

Light Company.

The specific objectives are to assess the species composition of =acrcinvertebrate above and below the island and their relative abundance in the vicinity.

Enclos,ed are Dr. 'durtz results.

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