ML12089A597

Entergy Pre-Filed Evidentiary Hearing Exhibit ENT00335B - GZA IPEC Quarterly Long-Term Groundwater Monitoring Report Quarter One 2009 (Report No. 5) - Figures 5 Through 7

ML12089A597
Person / Time
Site:	Indian Point
Issue date:	06/22/2010
From:	GZA GeoEnvironmental
To:	Entergy Nuclear Northeast, Entergy Services, Atomic Safety and Licensing Board Panel
SECY RAS
Shared Package
ML1289A594	List: ML12089A595 ML12089A596 ML12089A597 ML12089A598 ML12094A117
References
RAS 22131, 50-247-LR, 50-286-LR, ASLBP 07-858-03-LR-BD01
Download: ML12089A597 (4)

Text

1st QUARTER 2009 SHALLOW AND DEEP GROUNDWATER CONTOURS Grass ENT00335B As ph dr Gravel Submitted: March 29, 2012 ph ive As alt Gravel parking 1

Asphalt parking alt cu rb l

MW-112 Grave i

ha rk Asp ph pa lt rb Aspha Concrete cu As ng Asphalt curb Fuel Oil Fuel Oil

@ Storage Tank Storage Tank t

g al

?

k in par cu rb e

Storag lt Grass alt Gras As s Asphalt curb ph SHALLOW GROUNDWATER ELEVATIONS AT LOW TIDE Asphalt curb g rking Gravel parkin 10 GW Elevation (feet msl) GW Elevation (feet msl)

Gravel pa 0

Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 ,

2008 2008 2008 2009 2008 2008 2008 2009 ,

130 HR1 -1.13 -1.05 -1.69 -3.28 MW-53-82 12.60 10.35 NA 11.11 I2 52.11 52.90 50.75 NA MW-54-35 6.36 6.16 6.41 5.75 MW-107 MW-101 1,015' MW-31-49 46.14 45.39 44.13 46.44 MW-55-24 8.16 8.18 9.02 8.35 Earth @

? 140 @

? MW-105 640' ing MW-32-59 46.75 45.72 44.48 46.83 MW-56-53 29.93 NA 21.90 27.33 Parking Asphalt park MW-33 11.66 10.55 10.60 11.23 MW-57-11 NA 10.03 10.27 11.11 140 @

?

140 3

MW-34 12.03 10.54 10.54 11.25 MW-58-26 NA 7.29 7.19 7.56 MW-35 12.06 10.68 10.68 11.36 MW-59-32 0.77 0.81 0.47 0.31 arking IT MW-36-24 6.86 7.58 9.05 NA MW-60-35 1.63 0.82 2.04 1.99 Asphalt p Storage Gravel ing MW-37-22 4.18 5.36 5.55 4.45 MW-62-18 0.13 0.06 -0.12 -0.82 Storage units Asphalt park UN Grass storage MW-38 1.53 2.12 1.22 NA MW-63-18 0.09 0.32 -0.08 -0.64 MW-39-67 31.69 25.96 25.21 28.74 MW-65-48 38.60 43.22 NA 48.19 Gravel MW-40-27 59.99 54.70 54.22 59.53 MW-66-21 0.05 0.17 0.29 -0.33 No Access MW-41-40 33.81 31.28 30.71 33.62 MW-67-39 0.36 0.41 -0.02 -0.07 MW-42-49 34.81 34.52 34.43 34.78 MW-107 118.94 115.00 115.76 120.28 MW-43-28 33.95 32.51 32.15 33.43 MW-108 10.07 NA 9.02 9.65 Asphalt MW-110

?

e Asphalt driv MW-44-66 35.47 35.29 34.00 34.96 MW-109 10.12 7.82 7.88 NA 3

MW-45-42 37.16 28.63 25.45 32.02 MW-111 11.24 9.74 10.48 10.87 MW-46 14.97 12.62 12.81 14.29 OUT1 0.81 NA NA NA IT rb NA H

MW-47-57 31.53 22.84 22.37 26.51 U3-1 NA NA NA cu RT UN MW-48-23 -0.23 -0.18 -0.48 -0.91 U3-2 NA NA NA NA rb Concrete cu MW-49-26 0.51 0.37 0.49 -0.25 U3-3 9.25 8.25 8.94 9.13 Wooden MW-50-42 5.24 6.40 7.06 5.66 U3-4S 3.97 4.31 3.81 4.01 120 NO MW-51-40 52.35 49.44 49.24 49.32 U3-C1 0.99 2.36 0.81 0.64 C Stone curbs on bs 120 MW-52-11 8.85 8.65 8.44 8.19 U3-T1 3.86 4.33 3.69 3.83 Sh cr 110 ru et U3-T2 3.94 4.28 3.76 4.05 e cu 10 0

DEEP GROUNDWATER ELEVATIONS AT LOW TIDE rb 100 120 10 1/2 0

90 bs GW Elevation (feet msl) GW Elevation (feet msl) Sh 110 110 ru rbs 110 Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 90 Concrete cu H

80 IT 2008 2008 2008 2009 2008 2008 2008 2009 0

UT 11 MW-30-69 12.28 11.77 11.71 12.33 MW-52-64 5.03 5.21 5.16 5.20 90 p

m UN MW-32-149 10.04 9.71 9.77 10.00 MW-53-120 11.49 9.76 p ra NA 10.55 MW-37-57 6.07 6.64 7.20 6.50 MW-54-123 3.52 4.01ca 4.06 2.99 LEGEND SO di A n on /C MW-39-124 30.67 25.07 24.43 27.74 MW-59-68 -0.11 Ha NA -1.79 -5.66 co un n it pa cret bs MW-40-81 55.78 47.28 46.83 55.67 MW-60-55 -0.47 -0.90 -1.21 -1.91 d e Sh ru MW-41-63 32.76 27.53 26.96 30.38 MW-62-92 -0.11 -0.10 -0.85 -1.68 Sh ru bs MW-42-78 36.28 35.38 35.07 36.03 MW-63-112 -1.69 -1.60 -2.26 -3.14 Boringlot

/ Monitoring Installation Designation MW-44-102 30.88 25.86 25.16 28.09 MW-65-80 34.97 Transformer 32.95 32.72 33.71 MW-47-80 28.35 21.52 21.08 26.37 MW-67-105 0.57 0.65 0.16 -0.67 Concrete Parking curb MW-51-135 40.71 38.10 37.68 39.75 A/C Grass MW-30 UNIT Notes:

Boring / Monitoring Installation NA: data not available Asphalt

1. Quarter 2, 2008 groundwater elevations were measured on 4/4/08 at 5:14 pm.

2. Quarter 3, 2008 groundwater elevations were measured on 7/10/08 at 11:35 am.

As p ha

?

lt Covered Concrete

3. Quarter 4, 2008 groundwater elevations were measured on 11/11/08 at 2:54 am.

4. Quarter 1, 2009 groundwater elevations were measured on 01/09/09 at 2:42 am.

Shrubs 20 Shallow Groundwater Contours 01/09/2009 (10' Interval) 70 Grass 80 Shallow Groundwater Contours E

As ph 5

Asphalt Other Than 10' Interval al t

Grass ON 20 Deep Groundwater Contours 01/09/2009 (10' Interval)

Asphalt drive NZ Transformer Substation "H" Asphalt Asphalt Stream Tubes Grass MW-65 EA Concrete curb Asphalt

? Tank Trans Storage Tank Tank 2

MW-51 CL TUNNEL IT Tank Asphalt parking

?

Notes:

UN STORAGE POOL East Fuel Pool RN Trailer 20

" Tank

1. Groundwater contours developed using groundwater elevations 20 measured on 01/09/2009 at low river tide.

CASK WASH & DISASSEMBLY ISOLATION PIT WEST CASK LOAD POOL 80 FUEL Asphalt 13 STORAGE

@ MW-39 DISASSEMBLY POOL HE POOL Containers

?

POOL

2. Shallow contours developed using elevations measured at the water FUEL TRANSFER POOL table (phreatic) surface.

FAILED FUEL AUX. POOL H

e Tank iv Dr UT UTILITY Concrete curb RT MW-43 3. Deep contours developed using piezometric elevations measured in Tank Pit MW-41 Water @

? screened intervals typically located 40 feet below the groundwater table.

MW-42 Asphalt Storage Tank @

?

NO

? Tank Tank SO Storage lt

4. Base map was developed from an untitled electronic file provided by ha Asp Tank Drive Badey & Watson Surveying and Engineering, P.C., Dated 2/3/06; CAD A/C Units file name : "GZA.dwg".

UNIT 1 90 Unit 2 Condensate Transformers Storage Tank on raised Asphalt Concrete Pad 50 25 0 50 100 150 Asphalt MW-45 p

Feet As ha lt MW-31 ?

Storage @

?

As p TI-U2-1 ha MW-44 lt I-2 @ MW-32

? MW-47 ?

?

? Liquid FUEL POOL Nitrogen MW-56 Tank MW-30 "

/ 70 @

?

90 @!

? . RW-1 PAB MW-53

?

80 Asphalt 80 Courtyard ALLEY WAY Transformers 70 Transformers on raised Concrete slab Condensate Asphalt parking Concrete Pad Tank 30 60 Asphalt 70 MW-46 MW-34 MW-35 Transformer area and switch gear UNIT 2 UNIT 3 MW-33 Trans Storage Tanks U1-CSS ? @

?

Stone retaining wall  ? @

@ ?

@ ? Gravel @

CSS 50 MW-111 MW-40

?

Open grate

?

TUNNEL Trans Mach.

stand 40 Gravel 20 30 Transformer yard Gravel 30 MW-57 MW-55 Vent pit ph Trans

?

As @

?

Transformer Yard 50 alt MW-108 10 MW-36 U2-C1 @

?

UTILITY ive Concrete Retaining Wall dr

" 40

? MW-54 @

? "

? 40 Trans. "

MW-37 ?

@ Asphalt MW-52

?

MW-109 30 30 "

? U3-T2 "

MW-58 @

? @

? U3-T1 Asphalt

?

U3-3?

MW-64 MW-50? @

RN E

? 20 20 Trans.

@ U3-2

?

HE ON 60 Overhead MW-59 U3-C1 Crane

?

MW-49 @

?

RT Z 50 @

? Asphalt U3-1 ?

U3-4D?

@ U3-4S

?

10 40 50 N

Transformers

" 10 NO EA Yard 30 (Gravel) 40

" MW-67 Concrete DISCHARGE CANAL Bridge 30 Asphalt parking

?

Overhead walkway 20 CL Tank C

" 10 @

o B nc ri r 5

" MW-66 MW-62 MW-63 ? d et ge e MW-60 5 @

? @?

? @

? "0 MW-48 MW-61 0

?

MW-38 HR-1 @

?

? Rip-rap GZA GeoEnvironmental, Inc.

One Edgewater Drive OUTFALL Concrete pier Norwood, MA 02062 No Access Phone: (781) 278-3700 Fax: (781) 278-5701 this Area OUT-1

? INDIAN POINT ENERGY CENTER BUCHANAN, NEW YORK HUDSON RIVER Plant North N 1st QUARTER 2009 SHALLOW AND DEEP N GROUNDWATER CONTOURS 07-24-2009 Proj. Mgr.: MJB Dwg. Date: Figure No.:

5 Designed By: MJB Reviewed By: MJB Operator: GAS Job No.:

41.0017869.91 J:\17,000-18,999\17869\17869-91.MG\Figures\GIS\MXD Documents\Q1_2009\17869-91_Q1_2009_F05_Shallow-Deep_GWC.mxd

A sp Asp 1st QUARTER 2009 LONGTERM TRANSDUCER MONITORING EVALUATION MAP h

rb ha Concrete cu Co n al lt c ph t C urb e As pa sid onc et rk cr ew ret rb i ng a lk e Grass al Sign Gravel cu t

s sid dr ive as ph pa lt As Gr ew rk i Gravel parking a Asphalt parking ph g

al k al ng in Asphalt t

As rk l

MW-112 Grave pa ha sidewalk Asp ph lt rb Aspha Concrete cu As al Asphalt curb lt t cu k in Storag e

par rb Grass a lt Gras g

As s Asphalt curb ph Asphalt on curb g rking C wa Gravel parkin 10 Gravel pa lk et e cr 0

sid e

side MW-107 130 Co wa lk cr MW-101 et e 1,015' nc 140 re Earth 640' te Co MW-105 ing n

Parking Asphalt park 120.28 si 140 113.87 121.79 de Co w

140 n

al sid crete k

ewa lk arking Asphalt p Storage Gravel ing Storage units Asphalt park Grass storage Gravel No Access Asphalt MW-110 LEGEND e

Asphalt driv rb Monitoring Installations cu Boring / Monitoring Installation Designation rb Concrete cu MW-30 Wooden Gravel parking Stone curbs bs C Co on n 120 Longterm Radionuclide Monitoring Installation 120 cr cre ru C et te 110 Standby Radionuclide Monitoring Installation Sh on e alk cr cu sid 10 ew 0

et rb ew 100 10 120 sid e al 0 Sh si k Quarterly groundwater elevation at time of low river tide on 01-09-2009 90 Co nc ru bs de w 11 0 110 rbs ret al 110 90 e Concrete cu 80 k

Multiple Screened 32.5 33.3 34.7 0 Transducer Monitored Interval 90 11 p

m ra p

di ca A 33.1 34.6 35.2 on / C Intervals w/ Depth Interval no longer monitored with Transducer n

Ha co un bs n i p a c re t ru C

d te on k 35.6 38.1 al Sh cr et 36.3 ew e Sh sid ru Single level monitoring location with duplicate bs wa Conc. lk te re 36.8 32.4 39.2 Transducers for redundancy* (Data from primary trans. shown)

Concrete Parking lot n c Transformer Co k sidewalk al ew A/C Grass curb Maximum quarterly groundwater elevation at time of low river tide measured between sid UNIT te Q2 2007 and Q1 2009, inclusive.

cre Co n

Asphalt Minimum quarterly groundwater elevation at time of low river tide measured between Q2 2007 and Q1 2009, inclusive.

As ph al t

Transducer Notes:

Concrete sidewalk E16A Covered Concrete Wood walk al k Shrubs E16 * - For locations with multilevel depth monitoring, redundancy provided by monitoring more than one depth at same location.

sid ew CB-7 70 Grass - Redundant transducer data not available for Q1 09 given that the transducer redeployment plan not yet implemented.

110 te cre 80 n

Co Potential Future Source Locations As ph CB-27 al Asphalt t

al k Grass ew Sid te Concre k sid ew al CB-5B

, , Unit 2 and Unit 3 Potential H3 Source te Asphalt drive CB-5 cre Transformer CB-5A n Substation "H" Asphalt Co (CB-6) E15A Probable Legacy Release SSCs Asphalt 25.21 28.74 32.20 Grass CB-6 AB CB-24 E15 MW-65 28.62 Unit 2 Fuel Pool (All identified leaks repaired as of December 2007)

Concrete curb 25.12 31.94 CB-28 Asphalt Trans CB-3B 38.60 48.19 48.19 24.79 NA 31.34 E14 Unit 1 West Fuel Pool (All U1-SFPs drained and inactive as of October 2008) k MW-51 ewal Si 33.71 d

33' 42.5' 32.72 34.97 42.5' 33' 24.43 27.74 30.67 Asphalt parking (U1-CB-8)

Terminated Connection To Storm Drain A5 lt E1 48.69 49.32 52.35 p ha EASTERN IP1-CB TUNNEL As 26.78 22.33 29.83 FLOW PATH STO RA G E PO O L Trailer CAS K W AS H &

DIS A SS E MB LY CAS K L O A D LEGACY IP1 STORM DRAIN FLOW PATH 22.70 25.63 28.89 A3A A6 39.92 42.75 44.17 Drain Exfiltration 80 IS O LATIO N P IT Inter-Structure Joint / Mud Mat PO O L A4 WEST 4 36.03 37.99 39.02 Asphalt STO RA G E MH16 FUEL MW-39 DIS A SS E MB LY PO O L Containers PO O L POOL FUEL Containment Spray Sump Pipe Trench TRAN SFE R PO O L CB3A 39.75 FA ILE D FUE L CB4 37.42 40.71 PU MP AUX . PO O L SU CTION WELL A3 e

iv Dr 35.74 Concrete curb 33.79 36.77 Activity Data MW-43 WAT ER STO RA GE 4

MW-41 33' PO O L CB3 MW-42 Asphalt 46.83 30.81 Isopleth E2B E2C 41.44 47.99 29.33 31.79 F5 33.43 U3-CB UTILITY 31.08 33.95 lt (U1-CB-9) ha 12.60 A

1, 2 1, 3 sp 10.27 13.30 34.78 Bounding Activity H3 Bounding Activity SR90 MH22 34.43 34.96 Drive A/C Units F6 33.62 34.13 33' 29.87 36.57 30.48 34.13 F7 44.09 46.44 47.50 A2A 11.86 UNIT 1 11.34 25.01

> 5,000 pCi/L > 2 pCi/L 36.03 33' 35.07 90 36.63 CB-29 MH10 CB-2C 25.94 30.38 33.31 41.21 44.12 SOUTH WESTERN 45.52 Transformers U3-MH-14 8.18 10.00 10.20 on raised IP1-CB FLOW PATH Conc. sidewalk Asphalt Concrete Pad 39.59 42.10 43.19 26.51 Data Notes:

Asphalt 9.45 9.68 9.92 20.77 31.53 MW-45 As p Storage A1

1. Illustration of contaminant plume is a schematic representation only. In reality, the geologic bedrock formation is over 99% solid, ha MW-31 lt crystalline rock, with the contaminated water contained only in the remaining (less than 1%) interstitial space (i.e. fractures).

MH9 MH-20 26.37 p MH21 CB-2B As 21.08 28.35 32.02 A2 MH11 6.74 7.24 8.05 24.82 37.16

2. The H3 bounding isopleth encompasses upper bound values measured over both depth and time. As such, the "plume" is ha MW-44 33 E2 lt '

MW-32 MW-47 F3 E2A an overstatement of contaminant levels actually existing on-site at any time.

I-2 FUEL 22.75' CB-30 U3-CB 24.33 29.99 32.91 (U1-CB-10)

F2 F4 3. The Sr-90 bounding isopleth encompasses upper bound values measured over both depth and time. As such, the "plume" is POOL MW-56 CB 34.96 an overstatement of contaminant levels actually existing on-site at any time.

33 33.36 37.99 MW-30 CB-2A 70 4. Two discrete isopleths have been drawn around MW-39 and 41 given measured Sr90 concentrations greater than 2 pCi/L. It is expected RW-1 A7 48.62 53.73 MW-53 80 CB-B PAB NA that similar concentrations exist at other locations along the legacy piping alignment in addition to the locations shown.

90 27.33 28.09 Asphalt 20.16 29.93 80 23.10 30.88 CSS TRENCH Courtyard 11.53 12.33 12.33 29.10 11.11 9.59 Transformers 12.60 IP1-CSS TRENCH FLOW PATHCB-31 CB-E General Notes:

29.05 30.15 70 Transformers PAT 25.13 on raised 20.10 Concrete 29.16 slab F1 Asphalt parking H

MH18 Concrete Pad

1. Base map was developed from an untitled electronic file provided by Badey & Watson Surveying and Engineering, P.C.,

U1-CB-21 12.36 13.13 13.13 10.55 U1-CB-22 9.18 11.49 Dated 2/3/06; CAD file name : "GZA.dwg".

60 CB-2 OW Asphalt CB-32 FL 8.98 20.46 20.46 21.75' 70 MW-46 MW-34 MH17 CB-1 ROOF DRAIN ELEVATION 65' ROOF DRAIN MH8 Transformer area and switch gear MW-35 UNIT 2 UNIT 3 MW-33 Trans 43.8' U1-CSS 43.8' 43.8' U1-CB-20 Stone retaining wall Gravel 13' B1 11.95 14.29 15.05 LAFARGE WELLS LAF-03 TUNNEL 11.36 IP1 43.8' 11.23 9.67 12.06 CSS 9.80 11.66 50 9.82 11.25 12.03 (EL.=0.0)

MW-40 E3B E3A MW-111 B2 B2A MH-23 Open E3 5.75 6.41 grate MH7 5.90 CB-12 Trans RY 54.22 59.53 60.39 9.56 10.87 11.24 Mach.

A stand 40 IM 5.15 5.49 6.86 Gravel PR MH-19 47.27 59.13 59.35 30 Transformer yard Gravel CB-16 2.99 2.99 5.69 30 D1 MW-57 B4A B3 41.65 55.67 56.06 MW-55 Vent pit MH23A Trans 5.89 5.89 8.85 MH-5 ph MH-6 B3A As 8.83 11.11 11.11 39.47 53.59 54.10 UTILITY Transformer Yard CB-F a lt 2.19 2.19 5.17 7.82 8.35 9.02 9.38 10.63 12.07 MW-108 B5 B4 38.89 53.29 53.61 ive MW-36 U2-C1 CB-13 Concrete Retainin g Wall E4 dr 5.08 5.61 8.19 8.85 2.00 2.00 MH-4 MH-4A 7.29 7.63 8.30 MW-54 49.76 9.08 10.71 10.71 8.61 9.65 10.07 Trans. 36.67 50.49 Turbine Generator Building 1 E4A 6.85 NA 9.05 5.78 5.78 8.63 7.65 8.82 B6A LAF-02 NA MW-37 Asphalt 8.22 NA 8.22 6.49 7.56 8.32 5.95 6.05 7.08 MW-52 4.18 4.45 5.55 Concrete sidewalk 6.29 8.12 8.12 6.03 6.68 7.36 5.03 5.20 5.96 MW-109 Turbine Generator Building 3 CB-17 5.24 5.66 7.24 U3-T2 LAF-01 Turbine Generator Building 2 MW-58 B6 4.05 4.55 5.64 U3-T1 Asphalt 4.11 4.11 5.25 CB-14 6.80 10.12 6.52 9.13 9.25 1.95 1.95 3.71 NA B7 3.76 4.05 4.33 5.40 5.46 6.83 U3-3 MW-64

-2.07 -2.07 0.67 3.67 3.83 4.51 MW-50 5.34 NA 5.34 D2 E5 6.07 6.50 7.20

-2.38 -2.38 0.41 U3-2 Trans. E5A 0 100 200 400 Feet 60 MH3 Overhead C-1 MW-59 U3-C1 Crane HUDSON 3.74 4.01 4.31 MW-49 4.20 NA 4.20 2.69 3.41 4.25 E11 50 0.64 0.64 3.58 RIVER Asphalt U3-4S 0.31 0.31 1.06 U3-1 U3-4D

-0.62 -0.25 1.04 -0.64 1,557.1' 40

-0.64 0.32 B8 Transformers 0.42 0.44 9.23 Yard 30 MH-2 (Gravel) CB-34

-0.06 DISCHARGE 0.82 1.99 2.19 -0.44 1.02 -0.74 MW-67 -5.66 -5.66 2.91

-0.74 0.51 Concrete Bridge E12

-2.70 -0.08 CB-19 CANAL Asphalt parking Overhead walkway

-2.70 -0.63 MH13 CB-18 MH15 -0.08 1.01 Concrete sidewalk

-2.08 -2.08 0.86 C

-0.33 -0.07 1.02 o C-3 B nc ri r MW-66 MW-62 MW-63 d et ge e E6 E9 E10

-1.43 -1.43 0.74 MW-60 -0.67 -0.67 1.39

-1.68 -1.68 0.55 E8 CB-33

-0.74 -0.33 0.29 Wooden walk

-1.72 -1.72 0.94 MW-48 MW-61

-0.82 -0.82 0.25 -3.14 -3.14 0.03

-1.62 -1.62 0.75 CB-23 CB-15 C2 MH1

-0.86 -0.86 0.81

-2.99 -2.99 0.08 MH12 -1.13 -1.13 0.61 -1.49 -1.49 1.41 E7

-1.87 -1.87 0.74 -1.14 -0.91 -0.08 MH14

-3.41 -3.41 -0.48 -2.03 -2.03 0.95 -2.46 -2.46 0.70 50 25 0 50 100 150

-1.03 -0.50 -0.50 0.64 E13 MW-38

-1.03 1.61 Concrete walk Feet

-2.15 HR-1 -1.97

-2.15 0.89 -1.97 0.88

-2.86 -2.86 0.18 1.22 NA 3.01 Rip-rap

-1.68 -3.28 -3.28 -0.86

-1.68 1.07

-2.42 -2.42 0.63 GZA GeoEnvironmental, Inc.

One Edgewater Drive

-1.33 -1.33 1.40 Norwood, MA 02062 Phone: (781) 278-3700 Fax: (781) 278-5701 OUTFALL Concrete pier

-2.66 -2.66 -0.33 OUT-1 INDIAN POINT ENERGY CENTER No Access this Area 0.76 NA 1.31 BUCHANAN, NEW YORK Plant North N 1st QUARTER 2009 HUDSON RIVER LONGTERM TRANSDUCER N MONITORING EVALUATION MAP 06-16-2010 5A Proj. Mgr.: MJB Dwg. Date: Figure No.:

Designed By: MJB Reviewed By: MJB Operator: GAS Job No.:

01.0017869.92 J:\17,000-18,999\17869\17869-91.MG\Figures\17869-92\GIS\MXDs\Q1_2009\17869-91_Q1-2009_F05A_Longtern Transducer Monitoring Map.mxd

A sp h Asp 1st QUARTER 2009 ROLLING AVERAGE TRITIUM ACTIVITY MAP rb ha Concrete cu al lt c ph t urb pa 1

As rk rb i ng Grass al Gravel cu t

s dr ive as ph pa lt As Gr rk i Gravel parking a Asphalt parking ph g

al ng in t

As rk l

MW-112 Grave pa ha Asp ph rb lt Aspha Concrete cu As Asphalt curb Fuel Oil Fuel Oil Storage Tank Storage Tank lt al t

cu k in Storag e

par rb Grass a lt Gras Tritium Results (pCi/L) g Tritium Results (pCi/L) s As Post Post Post Post Post Post Asphalt curb ph Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 Investigation Rolling Annual Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 Investigation Rolling Annual Quarter 2 Quarter 3 Quarter 4 Quarter 2 Quarter 3 Quarter 4 Level Average Level Average 2008 2008 2008 2008 2008 2008 2009 2008 2008 2008 2008 2008 2008 2009 MW-30-69 1.53E+05 7.36E+04 1.99E+05 8.53E+04 9.55E+04 NA 1.07E+05 2.64E+05 1.19E+05 MW-54-37 8.70E+02 NA 9.50E+02 NA 1.25E+03 NA 1.16E+03 2.07E+03 1.06E+03 MW-30-84 4.18E+03 3.85E+03 4.31E+03 3.78E+03 5.25E+03 NA 4.69E+03 8.57E+03 4.34E+03 MW-54-58 7.33E+02 NA 5.78E+02 NA 6.98E+02 NA 6.82E+02 1.33E+03 6.73E+02 Asphalt MW-31-49 3.04E+04 NA 5.94E+02 1.36E+04 6.43E+02 7.77E+02 1.11E+04 1.55E+04 9.52E+03 MW-54-123 6.98E+02 NA 6.12E+02 NA 5.80E+02 NA 5.31E+02 1.21E+03 6.05E+02 curb g rking Gravel parkin 10 Gravel pa MW-31-63 1.02E+04 NA 1.76E+04 2.21E+04 2.30E+04 2.55E+04 1.28E+04 3.69E+04 1.85E+04 MW-54-144 1.15E+03 NA 1.13E+03 NA 1.14E+03 NA 1.13E+03 2.41E+03 1.14E+03 MW-31-85 5.95E+03 NA 2.30E+03 8.34E+03 3.89E+03 4.41E+03 7.37E+03 8.73E+03 5.38E+03 MW-54-173 2.11E+03 NA 2.05E+03 NA 1.66E+03 NA 1.98E+03 3.83E+03 1.95E+03 MW-32-59 MW-32-85 4.15E+03 2.85E+03 1.54E+03 2.44E+03 4.13E+02 8.36E+03 1.11E+04 7.48E+03 8.05E+03 8.62E+03 NA NA 1.78E+04 6.54E+03 1.00E+04 1.81E+04 4.87E+03 8.36E+03 MW-54-190 MW-55-24 1.84E+03 1.05E+03 NA NA 1.25E+03 1.40E+03 NA NA 1.44E+03 7.82E+02 NA NA 1.43E+03 1.04E+03 3.39E+03 2.19E+03 0 1.49E+03 1.07E+03 130 MW-32-131 1.03E+03 NA NA NA NA NA NA 1.53E+03 1.03E+03 MW-55-35 1.60E+03 NA 1.73E+03 NA NA NA 8.53E+02 3.77E+03 1.39E+03 MW-32-149 8.83E+02 NA 5.32E+02 NA 5.03E+02 NA 2.65E+02 1.53E+03 5.46E+02 MW-55-54 5.96E+03 NA 6.31E+03 NA 7.76E+03 NA 7.33E+03 1.38E+04 6.84E+03 MW-107 MW-101 1,015' 140 MW-32-173 1.69E+03 NA 1.08E+03 9.72E+02 1.03E+03 NA 7.56E+02 3.27E+03 1.11E+03 MW-56-53 NA NA NA NA 3.99E+02 NA NA 1.00E+03 3.99E+02 Earth MW-105 640' ing MW-32-190 6.73E+03 NA 4.71E+03 3.81E+03 3.35E+03 NA 2.69E+03 1.10E+04 4.26E+03 MW-56-83 NA NA NA NA 2.98E+03 NA NA 4.92E+03 2.98E+03 Parking Asphalt park 140 MW-33 5.85E+04 NA NA 6.80E+04 NA NA NA 1.27E+05 6.33E+04 MW-57-11 2.17E+03 NA NA NA 3.28E+03 NA NA 5.45E+03 2.73E+03 120.28 0.191 MW-35 1.04E+03 NA NA NA NA NA NA 2.08E+03 1.04E+03 MW-57-20 7.27E+02 NA NA NA 1.51E+03 NA NA 2.24E+03 1.12E+03 MW-36-24 NA NA 1.02E+03 NA 2.01E+02 NA 2.37E+02 2.25E+03 4.86E+02 MW-57-45 5.65E+02 NA NA NA 1.13E+03 NA NA 1.70E+03 8.48E+02 140 arking MW-36-52 NA NA 1.26E+04 NA 1.10E+04 NA 6.79E+03 2.33E+04 1.01E+04 MW-58-26 NA NA NA NA 2.38E+02 NA 5.19E+02 1.00E+03 3.79E+02 Asphalt p MW-37-22 NA NA 4.33E+03 NA 2.68E+03 NA 5.27E+03 9.02E+03 4.09E+03 MW-58-65 NA NA NA NA 2.81E+02 NA 2.75E+02 1.00E+03 2.78E+02 Storage Gravel ing MW-37-32 NA NA 5.16E+03 NA 2.89E+03 NA 3.76E+03 9.87E+03 3.94E+03 MW-60-35 ND NA 1.95E+02 NA ND NA 2.00E+02 2.00E+03 1.98E+02 Storage units Asphalt park MW-37-40 NA NA 5.24E+03 NA 5.49E+03 NA 4.91E+03 1.16E+04 5.21E+03 MW-60-53 ND NA ND NA ND NA ND 2.00E+03 ND Grass storage MW-37-57 NA NA 5.33E+03 NA 4.27E+03 NA 5.04E+03 1.08E+04 4.88E+03 MW-60-72 ND NA ND NA 1.94E+02 NA ND 2.00E+03 1.94E+02 Gravel MW-39-67 3.18E+02 NA NA NA 4.15E+02 NA NA 1.00E+03 3.67E+02 MW-60-135 5.85E+02 NA 4.91E+02 NA 4.25E+02 NA 3.83E+02 2.00E+03 4.71E+02 No Access LEGEND MW-39-84 ND NA NA NA 2.34E+02 NA NA 1.00E+03 2.34E+02 MW-60-154 4.53E+02 NA 5.16E+02 NA 6.87E+02 NA 4.15E+02 2.00E+03 5.18E+02 MW-39-102 5.03E+02 NA NA NA ND NA NA 1.01E+03 5.03E+02 MW-60-176 7.77E+02 NA 8.95E+02 NA 8.32E+02 NA 9.16E+02 2.00E+03 8.55E+02 MW-110 MW-39-124 2.15E+02 NA NA NA 2.31E+02 NA NA 1.00E+03 2.23E+02 MW-62-18 NA NA 2.69E+02 NA 4.08E+02 NA 4.64E+02 2.00E+03 3.80E+02 MW-39-183 ND NA NA NA ND NA NA 1.00E+03 ND MW-62-37 NA NA 3.94E+02 NA 5.35E+02 NA 4.87E+02 2.00E+03 4.72E+02 Asphalt e

Asphalt driv Boring / Monitoring Installation Designation MW-39-195 2.74E+02 NA NA NA ND NA NA 1.00E+03 2.74E+02 MW-62-53 NA NA 3.52E+02 NA 4.08E+02 NA 3.56E+02 2.00E+03 3.72E+02 MW-40-27 NA NA 2.22E+02 NA ND NA 1.20E+02 1.00E+03 2.22E+02 MW-62-71 NA NA 4.64E+02 NA 5.12E+02 NA 2.99E+02 2.00E+03 4.25E+02 MW-40-46 NA NA ND NA ND NA ND 1.00E+03 ND MW-62-92 NA NA 4.95E+02 NA 4.82E+02 NA 5.25E+02 2.00E+03 5.01E+02 MW-30 MW-40-81 MW-40-100 NA ND NA NA 2.42E+02 1.93E+02 NA NA ND ND NA NA 1.61E+02 ND 1.00E+03 1.00E+03 2.02E+02 1.93E+02 MW-62-138 MW-62-182 NA NA NA rb 5.33E+02 NA cu 3.99E+02 NA NA 7.50E+02 4.98E+02 NA NA 6.26E+02 4.98E+02 2.00E+03 2.00E+03 6.36E+02 4.65E+02 Longterm Radionuclide Monitoring Installation Standby Radionuclide Monitoring Installation rb MW-40-127 ND NA ND NA ND NA ND 1.00E+03 ND MW-63-18 2.57E+02 NA ND NA 3.20E+02 NA ND 2.00E+03 2.89E+02 Concrete cu MW-40-162 NA NA 2.30E+02 NA ND NA ND 1.00E+03 2.30E+02 MW-63-34 4.90E+02 NA 4.41E+02 NA 4.14E+02 NA 4.20E+02 2.00E+03 4.41E+02 Wooden MW-41-40 NA NA NA NA 2.21E+03 NA NA 2.43E+03 2.21E+03 MW-63-50 2.70E+02 NA 3.35E+02 NA 3.17E+02 NA 2.98E+02 2.00E+03 3.05E+02 ing Gravel park MW-41-63 120 NA NA NA NA 6.91E+02 NA NA 1.00E+03 6.91E+02 MW-63-93 3.02E+02 NA 2.38E+02 NA 3.90E+02 NA 3.40E+02 2.00E+03 3.18E+02 C Active Storm Drain curbs on bs Stone3.16E+03 120 MW-42-49 3.24E+03 NA 1.32E+04 2.60E+03 1.12E+03 1.28E+03 8.21E+03 4.10E+03 MW-63-112 3.72E+02 NA 2.07E+02 NA 2.75E+02 NA 4.37E+02 2.00E+03 3.23E+02 ru cr 110 MW-42-78 NA NA 6.18E+02 NA 5.62E+02 NA 3.65E+02 1.02E+03 5.15E+02 MW-63-121 4.54E+02 NA 3.44E+02 NA 4.95E+02 NA 6.23E+02 2.00E+03 4.79E+02 et Sh e

10 MW-43-28 NA NA NA NA 2.65E+02 NA NA 1.00E+03 2.65E+02 MW-63-163 4.44E+02 NA 4.48E+02 NA 6.85E+02 NA 5.81E+02 2.00E+03 5.40E+02 cu MW-43-62 NA NA NA NA 2.25E+02 NA NA 1.00E+03 2.25E+02 MW-63-174 4.89E+02 NA 4.49E+02 NA 4.77E+02 NA 4.92E+02 2.00E+03 4.77E+02 rb 0 Abandoned Storm Drain 100 10 120 MW-44-66 1.61E+02 NA 5.50E+02 NA 3.18E+02 NA 2.06E+02 1.00E+03 3.58E+02 MW-66-21 9.53E+02 NA 7.83E+02 0 NA 5.34E+02 NA 4.61E+02 1.54E+03 bs 6.83E+02 90 MW-44-102 2.56E+02 NA 4.37E+02 NA 4.75E+02 NA 2.57E+02 1.00E+03 3.56E+02 MW-66-36 6.09E+03 NA 5.01E+03 NA 5.44E+03 NA 3.65E+03 1.19E+04 ru 5.05E+03 11 0 110 Catch Basin rbs MW-45-42 1.13E+03 NA 2.32E+03 NA 3.14E+03 NA 1.41E+03 4.02E+03 2.00E+03 MW-67-39 NA NA 3.87E+03 NA 3.18E+03 NA 3.67E+03 7.48E+03 3.57E+03 Sh 110 90 Concrete cu 80 MW-45-61 2.21E+03 NA 1.80E+03 NA 1.27E+03 NA 1.36E+03 3.97E+03 1.66E+03 MW-67-105 NA NA 2.16E+03 NA 2.93E+03 NA 1.96E+03 4.95E+03 2.35E+03 0

MW-46 5.21E+02 NA 7.71E+02 NA 1.38E+03 NA 1.00E+03 1.61E+03 9.18E+02 MW-67-173 NA NA 9.12E+02 NA 9.93E+02 NA 7.57E+02 1.90E+03 8.87E+02 90 11 Footing Drain MW-49-26 5.00E+03 NA 3.96E+03 NA 3.47E+03 NA 3.10E+03 8.32E+03 3.88E+03 MW-67-219 p NA NA 1.17E+03 NA 1.37E+03 NA 9.68E+02 2.51E+03 1.17E+03 m

MW-49-42 3.20E+03 NA 2.52E+03 NA 2.54E+03 NA 2.25E+03 5.54E+03 2.63E+03 MW-67-276 ra NA NA 1.16E+03 NA 1.18E+03 NA 1.10E+03 2.27E+03 1.15E+03 p

MW-49-65 1.93E+03 NA 1.56E+03 NA 1.26E+03 NA 1.42E+03 3.30E+03 1.54E+03 MW-67-323 ica NA NA 3.38E+02 NA A/ 6.84E+02 NA 3.65E+02 1.00E+03 4.62E+02 Probable Legacy Release Locations nd on C MW-50-42 NA NA 3.73E+02 NA ND NA 2.15E+02 1.00E+03 2.94E+02 Ha MW-67-340 NA NA 5.11E+02 NA c o u6.69E+02 NA 5.23E+02 1.11E+03 5.68E+02 n nit bs MW-50-66 2.80E+03 NA 2.71E+03 2.08E+03 2.73E+03 2.43E+03 2.30E+03 5.50E+03 2.51E+03 MW-107 1.91E+02 4.62E+01 NA NA pad c reNA te NA NA ru 1.00E+03 1.91E+02 MW-51-40 ND NA 3.29E+02 NA ND NA ND 1.00E+03 3.29E+02 MW-111 NA NA NA NA 7.39E+04 6.64E+04 NA 1.25E+05 7.02E+04 Sh Unit 2 Fuel Pool MW-51-79 ND NA ND NA ND NA ND 1.00E+03 ND U3-4D 3.19E+02 NA 4.66E+02 ND 5.68E+02 ND Sh rub s

4.82E+02 1.00E+03 4.59E+02 MW-51-104 NA NA 2.82E+02 NA ND NA ND 1.00E+03 2.82E+02 U3-T1 7.09E+02 NA 5.56E+02 NA 5.99E+02 NA 6.75E+02 1.28E+03 6.35E+02 (All identified Parking leaks repaired as of December 2007)

MW-51-135 NA NA 2.09E+02 NA ND NA ND 1.00E+03 2.09E+02 U3-T2 1.02E+03 NA 9.97E+02 NA 9.28E+02 NA 1.11E+03 2.14E+03 1.01E+03 Concrete lot Transformer MW-51-163 NA NA ND NA ND NA ND 1.00E+03 ND LAF-002 ND NA NA NA ND NA NA positive ND curb MW-51-189 NA NA ND NA ND NA ND 1.00E+03 ND U1-CSS 1.77E+03 6.88E+02 NA 1.45E+03 2.66E+03 2.20E+03 NA 3.09E+03 1.75E+03 MW-52-11 1.13E+03 NA NA NA NA NA NA 1.00E+03 1.13E+03 U1-NCD 9.50E+03 NA A/C NA NA 6.19E+03 NA 2.13E+03

• 5.94E+03 Unit 1 West Fuel Pool Grass UNIT MW-52-122 ND NA NA NA NA NA NA 1.00E+03 ND U1-SFDS 6.28E+02 8.81E+02 NA NA 1.09E+03 NA 3.11E+02

• 7.28E+02 MW-52-162 MW-52-181 1.45E+02 1.56E+02 NA NA NA NA NA NA NA NA NA NA NA NA 1.00E+03 1.00E+03 1.45E+02 1.56E+02 B-1 B-6 1.17E+03 ND NA NA NA NA NA NA NA NA NA NA NA NA 1.17E+03 ND Asphalt (All U1-SFPs drained and inactive as of October 2008)

MW-53-82 NA NA 1.21E+03 NA 7.94E+02 NA 4.26E+03 1.96E+03 2.09E+03 MH-5 NA NA NA NA NA NA NA

• NA As ph Terminated Connection To Storm Drain MW-53-120 5.91E+03 NA 5.80E+03 5.76E+03 5.57E+03 5.04E+03 5.06E+03 1.19E+04 5.52E+03 al t Covered Concrete Notes: 1) Only results greater than the MDC are reported herein. ND therefore indicates that the analytical result was below the MDC and typically also below the E16A standard deviation threshold of three times 1 sigma. The rolling average is calculated using only results greater than the MDC. Given that ND represents real groundwater sampling results where the radionuclide activity level is either positive but very low and unquantifiable, or not detectable above background, its Drain Exfiltration Shrubs E16 exclusion results in a high bias to the average and thus adds a measure of conservatism to the subsequent dose computations. CB-7 70

2) A shaded value indicates that the reported activity exceeds the Investigation Level (I.L.). NA indicates that data is not available for this time period. Grass 11 3)

• Indicates storm or foundation drain sampling locations, for which investigation levels are not applicable.

Inter-Structure Joint / Mud Mat 80 As ph Containment Spray Sump Trench CB-27 al Asphalt t

Grass CB-5B Depth-Specific Data Asphalt drive CB-5 Average activity of H3 (pCi/L x1000) for each screened Interval.

Transformer CB-5A Substation "H" (CB-6)

Asphalt E15A Asphalt 28.74 0.367 Grass CB-6 AB 11.3 1.2 Depth CB-24 E15 Concrete curb MW-65 28.62 0.234 Multiple CB-28 Tank Asphalt 11.9 42.3 Trans Storage Tank CB-3B 48.19 28.32 0.503 E14 Screened Tank MW-51 12.6 56.0 Intervals Screened in Soil 33' Tank 42.5' 33.71 0.223 Asphalt parking TUNNEL 42.5' 33' 27.74 (U1-CB-8) 0.329 Screened in Bedrock A5 E1 49.32 12.8 255.0 STO RA G E PO O L East Fuel Pool 26.78 ND Trailer 20 Tank 42.75 ND 0.274 Groundwater elevation for each screened interval at time of low river tide on 1/09/2009.

CAS K W AS H &

25.63 A3A A6 DIS A SS E MB LY CAS K LOAD 80 IS O LATIO N P IT PO O L A4 WEST 37.99 0.282 13 Activity Data1,2 Asphalt MW-39 STO RA G E MH16 FUEL DIS A SS E MB LY PO O L Containers PO O L POOL FUEL TRAN SFE R PO O L CB3A 0.209 FA ILE D FUE L CB4 39.75 PU MP AUX . PO O L SU CTION U1-SFDS WELL Bar Graphs; Average H3, pCi/L Isopleths; Average H3, pCi/L Tank A3 e

Dr iv 3

Concrete curb 0.728 35.74 ND WAT ER STO RA G E MW-41 MW-43 33' PO O L No Depth-Specific Samples 5,000 - 10,000 Tank Pit Water UTILITY CB3 Asphalt 4.866 E2B E2C MW-42 Tank Storage 46.83 30.81 ND F5 U3-CB Tank 0.265 Tank Not Detected (ND) 10,000 - 50,000 Storage 33.43 lt (U1-CB-9) ha 8.358 Tank ND Asp MH22 12.60 Drive A/C Units 34.78 4.1 F6 0.225 33' 2.21 F7 18.533 9.519 33.62 34.13 ND - 1,000 50,000 - 100,000 46.44 A2A 0.56 UNIT 1 1.03 11.86 36.03 0.515 90 CB-29 Unit 2 MH10 CB-2C 30.38 0.691 Condensate 44.12 Transformers 1,000 - 5,000 > 100,000 0.546 U3-MH-14 Storage Tank 10.00 on raised 2.8 Asphalt Concrete Pad 5.377 42.10 1.106 MW-45 5,000 - 10,000 As p Asphalt 9.68 26.51 Storage A1 6.25 U1-NCD ha MW-31 lt Note: Illustration of contaminant plume is a schematic MH21 MH9 MH-20 CB-2B 4.258 3 As p MH11 26.37 A2 7.24 32.02 10,000 - 50,000 representation only. In reality, the geologic bedrock 5.94 ha MW-44 32.2 2

MW-47 33 E2 lt '

I-2 MW-32 F3 E2A 22.75' CB-30 U3-CB 29.99 1.66 formation is over 99% solid, crystalline rock, with the 50,000 - 100,000 (U1-CB-10)

FUEL POOL contaminated water contained only in the remaining Liquid F2 F4 Nitrogen 33 '

MW-56 34.96 0.358 CB 65 MW-30 70 (less than 1%) interstitial space (i.e. fractures).

Tank CB-2A RW-1 A7 PAB MW-53 80 CB-B 0.399 100,000 - 200,000 90 0.356 155 Asphalt 27.33 80 28.09 CSS TRENCH Courtyard 118.9 ALLEY WAY CB-E 12.33 29.10 2.088 11.11 Transformers CB-31 70 Transformers

> 200,000 on raised Concrete slab2.98 Condensate F1 Asphalt parking 25.13 4.343 MH18 Concrete Pad Tank U1-CB-21 260 13.13 10.55 5.52 U1-CB-22 60 CB-2 Asphalt CB-32 B-1 H3 data x1,000 pCi/L 20.46 1.75 21.75' MW-34 MH17 70 3 MW-46 Groundwater Elevation Contours CB-1 ROOF DRAIN ELEVATION 65' MW-35 ROOF DRAIN MH8 Transformer area and switch gear UNIT 3 1.17 UNIT 2 MW-33 Storage U1-CSS U1-CB-20 43.8' 43.8' 43.8' Trans Tanks 13' TUNNEL Stone retaining wall Gravel B1 14.29 0.918 1.04 43.8' 63.25 11.36 Ambient "Watertable" Contours 11.23 CSS 50 (EL.=0.0) 11.25 MW-40 E3B E3A 20 1/09/2009 (10' Interval)

B2 B2A MW-111 MH-23 Open E3 MH7 5.75 1.058 grate CB-12 Trans 0.222 Contours Other Than 10' Interval 59.53 70.15 5

Mach.

10.87 40 5.49 0.673 stand Gravel 59.14 MH-5 MH-19 ND 0.605 30 Vadose Zone Contaminant Transport D1 Transformer yard 2.99 30 3 Gravel CB-16 ND MW-57 B4A B3 55.67 0.202 Vent pit ph MH-5 MH-6 MH23A Trans MW-55 5.89 1.138 B3A As 2.725 0.193 UTILITY 53.59 50 11.11 Transformer Yard Note:

CB-F a lt 1.95 1.068 2.19 8.35 MW-108 B5 Groundwater contours developed from limited data available on 1/09/2009. Actual elevations may 1.119 B4 U2-C1 10.63 53.29 ND MW-36 vary from conditions shown and the actual distribution of piezometric heads is likely more CB-13 ive Concrete Retainin g Wall E4 dr 1.49 8.19 1.13 1.394 2.00 MW-54 complex than indicated.

MH-4 MH-4A 7.63 10.71 0.848 9.65 Trans. E4A 49.76 0.23 40 0.486 5.78 6.84 B6A Data Notes:

MW-37 B-6 6.05 7.56 0.379 Asphalt

1. Average tritium isopleths and activity values are yearly rolling arithmetic MW-52 3 averages of the current and preceeding three quarters' data. Only values greater than the MDC 4.093 are used in this average, thus adding a degree of conservatism to the subsequent dose computations.

ND 8.12 10.13 4.45 6.68 0.278 MW-109 30 5.20 CB-17 0.294 2. Illustration of contaminant plume is a schematic representation only. In reality, the geologic U3-T2 5.66 MW-58 B6 3.937 4.55 bedrock formation is over 99% solid, crystalline rock, with the contaminated water 4.11 ND Asphalt U3-T1 contained only in the remaining (less than 1%) interstitial space (i.e. fractures).

CB-14 2.51 9.47 9.13 1.95 1.014 MW-50 B7 5.213 4.05 0.145 5.46 MW-64 U3-3 3.83 0.635 3. Storm or foundation drain sampling locations, for which investigation levels are not applicable.

-2.07 E5 D2 20 6.50 4.88 0.156

-2.38 Trans.

U3-2 General Notes:

E5A 60 MH3 C-1 U3-C1 1. Base map was developed from an untitled electronic file provided by Badey & Watson Surveying Overhead Crane MW-49 3.41 0.459 4.01 E11 and Engineering, P.C., Dated 2/3/06; CAD file name : "GZA.dwg".

50 0.64 Asphalt MW-59 U3-4S 0.31 U3-1 U3-4D

-0.25 3.883 0.289 40

-0.64 B8 50 Transformers 0.44 10 Yard 30 (Gravel) 2.628 CB-34 0.198 MH-2 DISCHARGE 0.441 40 1.99 -0.06 -0.74 MW-67 Concrete E12

-5.66 Bridge 30 1.543 CB-19 0.305 CANAL Asphalt parking Overhead walkway MH13 CB-18 MH15 20

-2.70 ND -0.08 3.573 -2.08 C Tank 5

o C-3

-0.07 B nc 10 MW-60 ri r d et MW-66 MW-63 -1.68 ge e E9 0.194 E6 E10

-1.43

-0.68 2.35 MW-62 0.318 5 CB-33 E8 0.683 0.471 -0.33

-1.72 MW-61 0.323 0.887 0.38

-1.62 CB-23 -0.82 CB-15

-3.14 C2 MW-48 5.048 MH1

-0.86

-2.99 0.518 0.472 0.479 E7 MH12

-1.87 1.169 -1.13 -1.49

-0.91 MH14

-3.41 0.855 0.372 50 25 0 50 100 150 0.54 1.147 -2.03 -2.46

-1.03 MW-38

-0.50 E13 Feet HR-1 0.425 0.477

-2.86 0.462 -2.15 -1.97 Rip-rap

-2.43 0.568 -1.68 0.501 -3.28 GZA GeoEnvironmental, Inc.

One Edgewater Drive 0.636

-1.33 Norwood, MA 02062 OUTFALL Concrete pier Phone: (781) 278-3700 Fax: (781) 278-5701 0.465 OUT-1

-2.66 No Access INDIAN POINT ENERGY CENTER this Area BUCHANAN, NEW YORK HUDSON RIVER 1st QUARTER 2009 ROLLING Plant North N N AVERAGE TRITIUM ACTIVITY1 MAP 6

Proj. Mgr.: MJB Designed By: MJB Dwg. Date:

06-16-2010 Figure No.:

Reviewed By: MJB Operator: GAS Job No.:

41.0017869.91 J:\17,000-18,999\17869\17869-91.MG\Figures\GIS\MXD Documents\Q1_2009\17869-91_Q1-2009_F06_Average-H3.mxd

Asp ha lt c ph urb As 1st QUARTER 2009 ROLLING AVERAGE STRONTIUM-90 ACTIVITY MAP 1

rb Grass al Gravel cu t

s dr ive as ph pa lt As Gr rk i Gravel parking a Asphalt parking ph g

al ng in t

As rk l

MW-112 Grave pa ha Asp ph lt rb Aspha Concrete cu As Asphalt curb Fuel Oil Fuel Oil Storage Tank Storage Tank lt alt cu k in Storag e

par rb Grass a lt Gras g

As s Strontium-90 Results (pCi/L) Strontium-90 Results (pCi/L)

Asphalt curb ph Post Post Post Post Post Post Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 Investigation Rolling Annual Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 Investigation Rolling Annual Quarter 2 Quarter 3 Quarter 4 Quarter 2 Quarter 3 Quarter 4 Level Average Level Average 2008 2008 2008 2008 2008 2008 2009 2008 2008 2008 2008 2008 2008 2009 MW-30-69 ND ND ND ND ND NA ND 2.00E+00 ND MW-54-37 5.08E+00 NA 6.20E+00 NA 7.33E+00 NA 5.93E+00 1.22E+01 6.14E+00 Asphalt curb rking MW-30-84 ND ND ND ND ND NA ND 2.00E+00 ND MW-54-58 1.69E+00 NA 1.71E+00 NA 9.02E+00 NA 1.98E+00 7.37E+00 3.60E+00 g

Gravel parkin 1

Gravel pa MW-31-49 ND NA ND ND ND ND ND 2.00E+00 ND MW-54-123 6.45E+00 NA 6.52E+00 NA 1.26E+01 NA 5.91E+00 1.76E+01 7.87E+00 MW-31-63 MW-31-85 ND ND NA NA ND ND ND ND ND ND ND ND ND ND 2.00E+00 2.00E+00 ND ND MW-54-144 MW-54-173 1.59E+01 1.22E+01 NA NA 1.69E+01 1.29E+01 NA NA 2.02E+01 1.61E+01 NA NA 1.44E+01 1.02E+01 3.42E+01 2.77E+01 0 0 1.69E+01 1.29E+01 MW-32-59 ND ND ND ND ND NA ND 2.00E+00 ND MW-54-190 1.95E+01 NA 2.13E+01 NA 3.38E+01 NA 1.90E+01 4.70E+01 2.34E+01 130 MW-32-85 ND ND ND ND ND NA ND 2.00E+00 ND MW-55-24 2.55E+01 NA 2.22E+01 NA 1.08E+01 NA 1.69E+01 4.06E+01 1.89E+01 MW-32-131 ND NA NA NA NA NA NA 2.00E+00 ND MW-55-35 3.44E+01 NA 2.54E+01 NA NA NA 1.71E+01 5.75E+01 2.56E+01 MW-107 MW-101 1,015' MW-32-149 ND NA ND NA ND NA ND 2.00E+00 ND MW-55-54 2.67E+01 NA 2.32E+01 NA 1.94E+01 NA 2.11E+01 4.61E+01 2.26E+01 Earth 140 640' ing MW-32-173 ND NA ND ND ND NA ND 2.00E+00 ND MW-56-53 NA NA NA NA ND NA NA 2.00E+00 ND Parking MW-105 Asphalt park 140 MW-32-190 ND NA ND ND ND NA ND 2.00E+00 ND MW-56-83 NA NA NA NA 2.13E+00 NA NA 5.69E+00 2.13E+00 120.28 ND 140 MW-33 ND NA NA ND NA NA NA 2.00E+00 ND MW-57-11 2.27E+01 NA NA NA 4.16E+01 NA NA 6.43E+01 3.22E+01 MW-35 ND NA NA NA NA NA NA 2.00E+00 ND MW-57-20 1.23E+00 NA NA NA 3.06E+00 NA NA 4.29E+00 2.15E+00 arking MW-36-24 NA NA ND NA ND NA ND 2.00E+00 ND MW-57-45 2.26E+00 NA NA NA 1.20E+00 NA NA 3.46E+00 1.73E+00 Asphalt p MW-36-52 NA NA 5.67E+00 NA 8.27E+00 NA 3.37E+00 1.25E+01 5.77E+00 MW-58-26 NA NA NA NA ND NA ND 2.00E+00 ND Storage Gravel ing Storage units Asphalt park MW-37-22 NA NA 1.22E+01 NA 1.80E+01 NA 8.81E+00 2.60E+01 1.30E+01 MW-58-65 NA NA NA NA ND NA ND 2.00E+00 ND Grass storage MW-37-32 NA NA 2.06E+01 NA 1.86E+01 NA 1.11E+01 3.63E+01 1.68E+01 MW-60-35 ND NA ND NA ND NA ND 2.00E+00 ND MW-37-40 NA NA 1.31E+00 NA 1.13E+00 NA 3.47E+00 2.26E+00 1.97E+00 MW-60-53 ND NA ND NA ND NA ND 2.00E+00 ND Gravel MW-37-57 NA NA 2.12E+01 NA 2.40E+01 NA 1.99E+01 4.94E+01 2.17E+01 MW-60-72 ND NA ND NA ND NA ND 2.00E+00 ND No Access LEGEND MW-39-67 2.21E+00 NA NA NA 3.31E+00 NA NA 6.03E+00 2.76E+00 MW-60-135 ND NA ND NA ND NA ND 2.00E+00 ND MW-39-84 2.23E+00 NA NA NA 1.04E+00 NA NA 3.37E+00 1.64E+00 MW-60-154 ND NA 5.10E-01 NA ND NA ND 2.00E+00 5.10E-01 MW-39-102 8.83E-01 NA NA NA 1.23E+00 NA NA 2.07E+00 1.06E+00 MW-60-176 ND NA ND NA ND NA ND 2.00E+00 ND MW-39-124 1.79E+00 NA NA NA 9.42E-01 NA NA 2.81E+00 1.37E+00 MW-62-18 NA NA 5.31E-01 NA ND NA 1.09E+00 2.00E+00 8.11E-01 Asphalt MW-110 e

Asphalt driv Boring / Monitoring Installation Designation MW-39-183 1.12E+00 NA NA NA ND NA NA 2.00E+00 1.12E+00 MW-62-37 NA NA ND NA 1.36E+00 NA ND 2.00E+00 1.36E+00 MW-30 MW-39-195 1.21E+00 NA NA NA 8.81E-01 NA NA 2.00E+00 1.05E+00 MW-62-53 NA NA ND NA ND NA ND 2.00E+00 ND MW-40-27 NA NA ND NA ND NA ND 2.00E+00 ND MW-62-71 NA NA ND NA ND NA ND 2.00E+00 ND Longterm Radionuclide Monitoring Installation MW-40-46 NA NA ND NA ND NA ND 2.00E+00 ND MW-62-92 NA NA rbND NA ND NA ND 2.00E+00 ND u

c1.21E+00 MW-40-81 NA NA ND NA ND NA ND 2.00E+00 ND MW-62-138 NA NA NA 1.24E+00 NA 2.46E+00 2.00E+00 1.64E+00 rb Standby Radionuclide Monitoring Installation Concrete cu MW-40-100 ND NA ND NA ND NA ND 2.00E+00 ND MW-62-182 NA NA ND NA ND NA ND 2.00E+00 ND Wooden MW-40-127 ND NA ND NA ND NA ND 2.00E+00 ND MW-63-18 ND NA 3.29E+00 NA ND NA ND 2.00E+00 3.29E+00 MW-40-162 Gravel parking NA NA ND NA ND NA ND 2.00E+00 ND MW-63-34 ND NA 1.15E+00 NA ND NA ND 2.00E+00 1.15E+00 120 C

Active Storm Drain MW-41-40 NA NA Stone NA curbsNA 5.91E+00 NA NA 8.96E+00 5.91E+00 MW-63-50 ND NA ND NA ND NA ND 2.00E+00 ND on bs 120 cr ru MW-41-63 NA NA NA NA 5.69E+00 NA NA 9.45E+00 5.69E+00 MW-63-93 ND NA ND NA ND NA ND 2.00E+00 ND 110 et Sh MW-42-49 2.36E+01 NA 3.56E+01 2.96E+02 9.61E+01 1.02E+02 6.77E+02 1.96E+02 2.05E+02 MW-63-112 ND NA ND NA ND NA ND 2.00E+00 ND e 10 MW-42-78 NA NA 3.91E-01 NA ND NA ND 2.00E+00 3.91E-01 MW-63-121 ND NA 7.60E-01 NA ND NA 7.30E-01 2.00E+00 7.45E-01 cu MW-43-28 NA NA NA NA ND NA NA 2.00E+00 ND MW-63-163 ND NA ND NA ND NA ND 2.00E+00 ND rb 0 Abandoned Storm Drain 100 10 120 MW-43-62 NA NA NA NA ND NA NA 2.00E+00 ND MW-63-174 ND NA ND 0NA ND NA ND 2.00E+00 bs ND 90 MW-44-66 ND NA ND NA ND NA ND 2.00E+00 ND MW-66-21 1.01E+00 NA 9.07E-01 NA 1.03E+00 NA ND 2.02E+00 ru 9.82E-01 11 0 110 Catch Basin rbs Sh MW-44-102 ND NA ND NA ND NA ND 2.00E+00 ND MW-66-36 1.32E+01 NA 1.20E+01 NA 1.38E+01 NA 1.22E+01 2.71E+01 1.28E+01 110 90 Concrete cu 80 MW-45-42 ND NA ND NA ND NA ND 2.00E+00 ND MW-67-39 NA NA 1.37E+01 NA 1.62E+01 NA 1.42E+01 3.36E+01 1.47E+01 0

MW-45-61 ND NA ND NA ND NA ND 2.00E+00 ND MW-67-105 NA NA 9.63E-01 NA 1.11E+00 NA ND 2.14E+00 1.04E+00 90 11 Footing Drain MW-46 ND NA ND NA 9.33E-01 NA ND 2.00E+00 9.33E-01 MW-67-173 NA p NA ND NA ND NA ND 2.00E+00 ND a m MW-49-26 1.81E+01 NA 1.62E+01 NA 1.53E+01 NA 1.38E+01 3.63E+01 1.59E+01 MW-67-219 ap r NA NA ND NA ND NA ND 2.00E+00 ND MW-49-42 2.33E+01 NA 2.16E+01 NA 2.16E+01 NA 2.07E+01 4.80E+01 2.18E+01 MW-67-276ndic NA NA ND NA onA/CND NA ND 2.00E+00 ND a

Probable Legacy Release Locations H c oNDu MW-49-65 1.90E+01 NA 1.78E+01 NA 1.72E+01 NA 1.73E+01 4.07E+01 1.78E+01 MW-67-323 NA NA ND NA nc nit NA ND 2.00E+00 ND bs pa NDre te ru MW-50-42 NA NA 9.28E+00 NA 2.56E+00 NA 1.96E+00 9.49E+00 4.60E+00 MW-67-340 NA NA ND NA d NA ND Sh 2.00E+00 ND MW-50-66 3.38E+01 NA 3.30E+01 3.23E+01 3.20E+01 4.99E+01 2.75E+01 7.23E+01 3.48E+01 MW-107 ND ND NA NA NA NA S NA 2.00E+00 ND MW-51-40 ND NA ND NA ND NA ND 2.00E+00 ND MW-111 NA NA NA NA 1.02E+00 ND NA 3.58E+00 1.02E+00 hru bs Unit 2 Fuel Pool MW-51-79 ND NA ND NA ND NA ND 2.00E+00 ND U3-4D ND NA ND NA ND NA ND 2.00E+00 ND MW-51-104 NA NA ND NA ND NA ND 2.00E+00 ND U3-T1 ND NA ND NA 7.01E-01 NA 1.04E+00 2.00E+00 8.71E-01 Concrete Parking lot Transformer (All identified leaks repaired as of December 2007)

MW-51-135 NA NA ND NA ND NA ND 2.00E+00 ND U3-T2 6.52E-01 NA ND NA ND NA ND 2.00E+00 6.52E-01 curb MW-51-163 NA NA ND NA ND NA ND 2.00E+00 ND LAF-002 ND NA NA NA ND NA NA positive ND A/C Grass MW-51-189 NA NA ND NA ND NA ND 2.00E+00 ND U1-CSS 6.74E+00 4.83E+00 NA 9.38E+00 6.74E+00 9.08E+00 NA 1.48E+01 7.35E+00 Unit 1 West Fuel Pool UNIT MW-52-11 ND NA NA NA NA NA NA 2.00E+00 ND U1-NCD NA NA NA NA NA NA 4.64E+02

• 4.64E+02 MW-52-122 ND NA NA NA NA NA NA 2.00E+00 ND U1-SFDS NA NA NA NA NA NA 1.22E+01

• 1.22E+01 MW-52-162 MW-52-181 1.03E+00 ND NA NA NA NA NA NA NA NA NA NA NA NA 2.00E+00 2.00E+00 1.03E+00 ND B-1 B-6 ND ND NA NA NA NA NA NA NA NA NA NA NA NA ND ND Asphalt As ph (All U1-SFPs drained and inactive as of October 2008)

MW-53-82 NA NA 6.95E-01 NA ND NA 2.30E+00 2.00E+00 1.50E+00 MH-5 NA NA NA NA NA NA NA

• NA al Terminated Connection To Storm Drain t Covered Concrete E16A MW-53-120 3.11E+01 NA 3.03E+01 3.10E+01 2.53E+01 4.25E+01 2.64E+01 6.38E+01 3.11E+01 Notes: 1) Only results greater than the MDC are reported herein. ND therefore indicates that the analytical result was below the MDC and typically also below the standard deviation threshold of three times 1 sigma. The rolling average is calculated using only results greater than the MDC. Given that ND represents real Shrubs Drain Exfiltration E16 groundwater sampling results where the radionuclide activity level is either positive but very low and unquantifiable, or not detectable above background, its CB-7 70 Grass 110 exclusion results in a high bias to the average and thus adds a measure of conservatism to the subsequent dose computations.

Inter-Structure Joint / Mud Mat

2) A shaded value indicates that the reported activity exceeds the Investigation Level (I.L.). NA indicates that data is not available for this time period.

80

3)

• Indicates storm or foundation drain sampling locations, for which investigation levels are not applicable. As ph CB-27 Asphalt Containment Spray Sump Trench al t

Grass CB-5B Depth-Specific Data Transformer Asphalt drive CB-5 CB-5A Average activity of Sr90 (pCi/L) for each screened interval.

Substation "H" (CB-6) Asphalt 4

E15A Asphalt 28.74 2.76 Grass CB-6 AB CB-24 4 E15 11.3 MW-65 1.3 Concrete curb CB-28 28.62 1.64 Tank Multiple Screened Asphalt Trans 4 11.9 6.0 Storage 48.19 Intervals CB-3B 1.06 E14 Tank 28.32 Tank 4 MW-51 12.6 20.2 w/ Depth Screened in Soil 33' Tank 42.5' 33.71 42.5' 27.74 1.37 Asphalt parking 33' (U1-CB-8)

A5 TUNNEL 4 E1 49.32 Screened in Bedrock ND STO RA G E PO O L East Fuel Pool 26.78 1.12 12.8 1.6 Trailer 20 4 Tank 42.75 ND 1.05 CAS K W AS H &

25.63 A3A Groundwater elevation for each screened interval at the time of low river tide on 01/09/2009.

A6 DIS A SS E MB LY CAS K L O A D 80 IS O LATIO N P IT PO O L A4 WEST Asphalt 13 37.99 ND MW-39 FUEL STO RA GE MH16 DIS A SS E MB LY PO O L Containers Activity Data 1,2 PO O L POOL FUEL TRAN SFE R PO O L CB3A FA ILE D FUE L CB4 39.75 AUX . PO O L ND PU MP 3

SU CTION U1-SFDS WELL Tank A3 e

iv Bar Graphs; Average Sr-90, pCi/L Isopleths; Average Sr-90, pCi/L Dr Concrete curb WAT ER STO RA G E 12.2 35.74 ND MW-41 33' PO O L Tank Pit CB3 Water MW-43 Asphalt No Sample 2-4 E2B E2C Tank MW-42 Storage 46.83 ND 30.81 ND UTILITY F5 U3-CB Tank Storage Tank 33.43 lt ha (U1-CB-9) ND Tank Not Detected (ND)

A 4-8 sp MH22 12.60 ND 4 ND Drive A/C Units 34.78 205 33' F6 33.62 5.91 34.13 ND F7 46.44 A2A UNIT 1 ND ND - 1 11.86 4

8 - 25 0.74 ND 36.03 0.39 90 CB-29 Unit 2 MH10 CB-2C 30.38 5.69 Condensate 44.12 ND Transformers U3-MH-14 Storage Tank 1.0 - 2.0 10.00 ND on raised 1.7 Asphalt

> 25 Concrete Pad 42.10 ND Asphalt 26.51 MW-45 p

As 9.68 2.0 - 4.0 ND MW-31 Storage 2.86 A1 U1-NCD ha lt Note: Illustration of contaminant plume is a schematic p MH21 MH9 MH-20 CB-2B 3

As 26.37 A2 MH11 7.24 ND 32.02 ND 4.0 - 8.0 representation only. In reality, the geologic bedrock ha 5.5 464 MW-47 MW-44 33 E2 I-2 lt MW-32 F3 E2A 22.75' CB-30 U3-CB 29.99 ND formation is over 99% solid, crystalline rock, with the 8.0 - 25 (U1-CB-10)

FUEL POOL contaminated water contained only in the remaining Liquid 16.1 F2 F4 MW-56 CB Nitrogen 33 '

34.96 ND Tank MW-30 RW-1 CB-2A 70 A7 (less than 1%) interstitial space (i.e. fractures).

PAB MW-53 80 CB-B 90 40.4 > 25 Asphalt 27.33 80 ND 28.09 CSS TRENCH ND Courtyard ALLEY WAY CB-E 12.33 ND 11.11 Transformers CB-31 29.10 70 1.5 Transformers on raised Condensate Groundwater Elevation Contours MH18 Concrete 25.13 slab2.13 F1 Asphalt parking Concrete Pad Tank U1-CB-21 13.13 ND 10.55 31.1 U1-CB-22 60 CB-2 Asphalt B-1 Ambient "Watertable" Contours CB-32 20.46 7.35 21.75' 70 3 20 MW-34 01/09/2009 (10' Interval)

MH17 CB-1 ROOF DRAIN ELEVATION 65' MW-35 ROOF DRAIN MH8 Transformer area and switch gear UNIT 2 UNIT 3 MW-33 U1-CSS U1-CB-20 ND 43.8' 43.8' 43.8' Trans Storage Tanks 13' MW-46 Contours Other Than 10' Interval Stone retaining wall Gravel B1 14.29 0.93 5

43.8' 11.36 TUNNEL ND 11.23 CSS 50 ND (EL.=0.0) 11.25 MW-40 E3B E3A MW-111 Vadose Zone Contaminant Transport B2 B2A MH-23 Open E3 MH7 5.75 6.14 grate CB-12 5 Trans 59.53 ND 10.87 1.02 Mach.

stand 40 Gravel 5.49 3.6 MH-19 59.14 ND MH-5 Transformer yard 2.99 7.87 30 D1 Note:

30 3 Gravel CB-16 Groundwater contours developed from limited data available on 01/09/2009. Actual elevations may MW-57 55.67 vary from conditions shown and the actual distribution of piezometric heads is likely more B4A ND B3 Vent pit MW-55 5.89 16.85 complex than indicated.

MH-5 MH23A Trans ph MH-6 B3A As 32.15 50 11.11 53.59 ND Transformer Yard CB-F a lt 12.85 UTILITY 18.85 2.19 8.35 MW-108CB-13 Data Notes:

B5 B4 2.15 53.29 MW-36 10.63 U2-C1 ND ive

1. Average Sr-90 isopleths and activity values are yearly rolling arithmetic averages of the Concrete Retainin g Wall E4 dr 23.4 25.63 MW-54 8.19 ND MH-4A 2.00 MH-4 7.63 10.71 1.73 9.65 49.76 40 current and preceeding three quarters' data. Only values greater than the MDC Turbine Generator Building 1 Trans. E4A ND 5.78 ND 22.6 B6A are used in this average, thus adding a degree of conservatism to the subsequent dose computations.

2. Illustration of contaminant plume is a schematic representation only. In reality, the geologic MW-52 MW-37 B-6 bedrock formation is over 99% solid, crystalline rock, with the contaminated water Asphalt 6.05 7.56 ND 3 contained only in the remaining (less than 1%) interstitial space (i.e. fractures).

3. Storm or foundation drain sampling locations, for which investigation levels are not applicable.

ND 5.77 4.45 13 8.12 6.68 MW-109 Turbine Generator Building 3 ND 5.20 CB-17 5.66 U3-T2 30 4. Two discrete isopleths have been drawn around MW-39 and MW-41 given average Turbine Generator Building 2 4.6 B6 16.77 4.55 MW-58 U3-T1 concentrations greater than 2 pCi/L. It is expected that similar concentrations exist Asphalt at other locations along the legacy piping alignment in addition to the locations shown.

4.11 ND CB-14 9.47 9.13 1.95 34.8 B7 0.65

5. Sr-90 activity at MW-111 may be due to desorption of residual Sr-90 from 4.05 5.46 1.97 MW-64 1.03 U3-3 0.87 backfill used in the Transformer Yard.

MW-50

-2.07 3.83 E5 D2 21.7 20 6.50

-2.38 U3-2 Trans.

ND E5A General Notes:

1. Base map was developed from an untitled electronic file provided by Badey & Watson Surveying 60 MH3 Overhead C-1 MW-59 U3-C1 Crane 4.01 and Engineering, P.C., Dated 2/3/06; CAD file name : "GZA.dwg".

MW-49 3.41 ND E11 50 0.64 0.31 Asphalt U3-4D U3-4S

-0.25 15.85 U3-1 40 3.29 50

-0.64 B8 Transformers 0.44 Yard (Gravel) 10 30 MH-2 CB-34 40 DISCHARGE 1.99 -0.06 21.8 MW-67 ND -0.74 1.15 Concrete E12

-5.66 Bridge 30 17.83 CB-19 CANAL Asphalt parking Overhead walkway CB-18 20 -2.70 MH13 MH15 ND -0.08 -2.08 C ND Tank C-3 14.7 5

-0.07 o B nc 10 ri r MW-60 MW-66 MW-63 d et ge e E6 E9 E10

-1.43 ND 1.04 MW-62 -1.68 ND 5

-0.68 E8 CB-33

-0.33 0.98

-1.72 MW-61 MW-48 ND 0.81 CB-23 -0.82 -3.14 ND

-1.62 ND CB-15 C2 MH1

-0.86 12.8

-2.99 0.51 1.36 -1.49 0.75 E7 MH12 -1.13

-1.87 ND -0.91 MH14

-3.41 50 25 0 50 100 150 ND

-2.03 ND -2.46 ND

-1.03 ND MW-38 -0.50 E13 Feet

-2.15 ND HR-1 -1.97 ND

-2.86 ND Rip-rap

-1.68 ND -3.28

-2.43 GZA GeoEnvironmental, Inc.

ND

-1.33 1.64 One Edgewater Drive OUTFALL Concrete pier Norwood, MA 02062 OUT-1

-2.66 ND No Access Phone: (781) 278-3700 Fax: (781) 278-5701 this Area INDIAN POINT ENERGY CENTER BUCHANAN, NEW YORK Plant North N HUDSON RIVER 1st QUARTER 2009 ROLLING AVERAGE STRONTIUM-90 1

N ACTIVITY MAP 7

06-16-2010 Proj. Mgr.: MJB Dwg. Date: Figure No.:

Designed By: MJB Reviewed By: MJB 41.0017869.91 Job No.:

Operator: GAS J:\17,000-18,999\17869\17869-91.MG\Figures\GIS\MXD Documents\Q1_2009\17869-91_Q1-2009_F07_Average-SR90.mxd