ML12338A641

Official Exhibit - ENT00335B-00-BD01 - GZA IPEC Quarterly Long-Term Groundwater Monitoring Report Quarter One 2009 (Report No. 5) - Figures 5 Through 7

ML12338A641
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
References
RAS 22131, 50-247-LR, 50-286-LR, ASLBP 07-858-03-LR-BD01
Download: ML12338A641 (4)

Text

Grass ENT00335B ph Gravel Submitted: March 29, 2012 p As dr As t ive al lt Gravel parking ha rb Asphalt parking i cu Asp ph rk 1 pa MW-112 lt As ng Fuel Oil Fuel Oil Gravel Aspha alt Asphalt curb ark @

? Storage Tank Storage Tank t p rb rb hal cu e Grass Storag Concrete cu 1st QUARTER 2009 SHALLOW AND DEEP GROUNDWATER CONTOURS ing Asphalt curb As alt ph Gr as s

SHALLOW GROUNDWATER ELEVATIONS AT LOW TIDE Asphalt curb United States Nuclear Regulatory Commission Official Hearing Exhibit GW Elevation (feet msl) GW Elevation (feet msl) 10 g Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 0 ,

2008 2008 2008 2009 2008 2008 2008 2009 king

,

HR1 Gravel par -1.13 -1.05 -1.69 -3.28 MW-53-82 12.60 10.35 NA 11.11 Gravel parkin 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' 130 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-32-59 46.75 45.72 44.48 46.83 MW-56-53 29.93 NA 21.90 27.33 Parking

@

? MW-105 640' MW-33 11.66 10.55 10.60 11.23 MW-57-11 NA 10.03 10.27 11.11 140 @

?

MW-34 12.03 10.54 10.54 11.25 MW-58-26 ing NA 7.29 7.19 7.56 140 MW-35 12.06 10.68 10.68 11.36 MW-59-32 0.77 0.81 0.47 0.31 MW-36-24 6.86 7.58 9.05 NA MW-60-35 1.63 0.82 2.04 1.99 Storage Gravel MW-37-22 4.18 5.36 5.55 4.45 MW-62-18 0.13 0.06 -0.12 -0.82 Asphalt park T Entergy Nuclear Operations, Inc.

Grass storage MW-38 1.53 2.12 1.22 NA MW-63-18 0.09 0.32 -0.08 rking -0.64 I Gravel MW-39-67 31.69 25.96 25.21 28.74 MW-65-48 38.60 43.22 NA 48.19 No Access ing MW-40-27 59.99 54.70 54.22 59.53 MW-66-21 0.05 0.17 0.29 Asphalt pa -0.33 MW-41-40 33.81 31.28 30.71 33.62 MW-67-39 0.36 0.41 -0.02 -0.07 In the Matter of:

MW-42-49 34.81 34.52 34.43 34.78 MW-107 118.94 Asphalt park 115.00 115.76 120.28 UN Storage units MW-43-28 33.95 32.51 32.15 33.43 MW-108 10.07 NA 9.02 9.65 Asphalt MW-110 MW-44-66 35.47 35.29 34.00 34.96 MW-109 10.12 7.82 7.88 NA @

?

MW-45-42 37.16 28.63 25.45 e 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 MW-47-57 31.53 22.84 22.37 26.51 U3-1 NA NA NA cu rb NA (Indian Point Nuclear Generating Units 2 and 3)

MW-48-23 -0.23 -0.18 Asphalt driv

-0.48 -0.91 U3-2 NA NA NA NA H IT MW-49-26 0.51 0.37 0.49 -0.25 U3-3 9.25 8.25 8.94 9.13 MW-50-42 5.24 6.40 7.06 5.66 U3-4S 3.97 4.31 3.81 4.01 T N bs C rb MW-51-40 52.35 bs Stone cur49.44 49.24 49.32 U3-C1 0.99 2.36 0.81 0.64 Wooden MW-52-11 8.85 8.65 8.44 8.19 U3-T1 3.86 4.33 3.69 3.83 Sh ru on cr et R 120 U 120 U3-T2 3.94 4.28 3.76 4.05 Concrete cu e

O 110 cu 10 DEEP GROUNDWATER ELEVATIONS AT LOW TIDE 10 s rb 0 0 Sh N 0 100 120 GW Elevation (feet msl) GW Elevation (feet msl) rub 90 11 Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 Well ID Quarter 2 Quarter 3 Quarter 4 Quarter 1 90 110 2008 2008 2008 2009 2008 2008 2008 2009 2 80 3 110 H ASLBP #: 07-858-03-LR-BD01 MW-30-69 12.28 11.77 11.71 12.33 MW-52-64 5.03 5.21 p 5.16 5.20

/ 0 m

rbs MW-32-149 10.04 9.71 9.77 10.00 MW-53-120 11.49 9.76 p ra NA 10.55 T 90 11 ca MW-37-57 6.07 6.64 7.20 Concrete cu 6.50 MW-54-123 3.52 4.01 n di 4.06 2.99 A on /C co un 1 bs MW-39-124 30.67 25.07 24.43 27.74 MW-59-68 -0.11 Ha NA -1.79 -5.66 n MW-40-81 55.78 47.28 46.83 55.67 MW-60-55 -0.47 -0.90 -1.21 -1.91 IT it pa cret d e Sh ru U LEGEND MW-41-63 32.76 27.53 26.96 30.38 MW-62-92 -0.11 -0.10 -0.85 -1.68 Sh ru MW-42-78 36.28 35.38 35.07 36.03 MW-63-112 -1.69 -1.60 -2.26 -3.14 N bs O

MW-44-102 30.88 25.86 25.16 28.09 MW-65-80 32.95 32.72 33.71 MW-47-80 28.35 21.52 21.08 26.37 MW-67-105 34.97 Transformer 0.57 0.65 0.16 -0.67 Concrete S

U Parking Boringlot/ Monitoring Installation Designation MW-51-135 40.71 38.10 37.68 39.75 A/C Grass UNIT curb 3

MW-30 Docket #: 05000247 l 05000286 Notes:

NA: data not available Asphalt

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

? Boring / Monitoring Installation ha

2. Quarter 3, 2008 groundwater elevations were measured on 7/10/08 at 11:35 am. 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 Shallow Groundwater Contours 70 20 Grass 01/09/2009 (10' Interval)

As 80 ph Asphalt Shallow Groundwater Contours Exhibit #: ENT00335B-00-BD01 Identified: 10/15/2012 al t 5 Grass Other Than 10' Interval N 20 Deep Groundwater Contours Transformer Asphalt drive Asphalt Substation "H" Asphalt ER 01/09/2009 (10' Interval)

Grass Stream Tubes Concrete curb Admitted: 10/15/2012 Withdrawn:

MW-65

@ Tank H

Asphalt

?

Trans Storage Tank T

Tank MW-51 Tank Asphalt parking U

T @

? O I Notes:

STORAGE TUNNEL POOL East Fuel Pool N Trailer 20 Tank S

CASK WASH & DISASSEMBLY ISOLATION PIT CASK LOAD POOL

" 1. Groundwater contours developed using groundwater elevations 20 Rejected: Stricken: U WEST STORAGE 80 measured on 01/09/2009 at low river tide.

DISASSEMBLY POOL FUEL POOL FUEL TRANSFER 13 POOL POOL Asphalt "

FAILED FUEL AUX. POOL

@ MW-39

? 2. Shallow contours developed using elevations measured at the water Containers table (phreatic) surface.

iv e Tank E

Dr H MW-43 N

T Tank Pit MW-41 3. Deep contours developed using piezometric elevations measured in Water UTILITY screened intervals typically located 40 feet below the groundwater table.

MW-42 @

? Tank @

?

ha lt R Storage @

? Storage Concrete curb Asphalt Tank O

A Other:

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

Unit 2 90 N

Condensate UNIT 1 Transformers on raised Storage Tank 2 Concrete Pad A

p Asphalt 50 25 0 50 100 150 As ha Asphalt MW-45 E

lt Storage @

?

L Feet p @

As MW-31 ?

ha lt TI-U2-1 MW-44 C

I-2 @ MW-32

? @

MW-47 ? @

?

Liquid FUEL POOL

@

? Nitrogen MW-56 Tank MW-30 "

/ 70 @

?

RW-1 MW-53 80 90 @!

? . PAB @

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

?

Stone retaining wall Gravel

@ ?

? @

@ ? @

U1-CSS ?

UNIT 3 UNIT 2 CSS 50 MW-111 Open MW-40 grate

@

? @

?

Trans Mach.

40 stand 20 Gravel TUNNEL

"

Transformer yard 30 30 Gravel MW-57 Trans MW-55 @

?

ph Vent pit As @

?

alt 50 Transformer Yard "

10 MW-108 dr ive " MW-36 U2-C1 @

? 40

@

? MW-54 @

? "

@

? UTILITY Trans. 40 Concrete Retaining Wall

"

MW-52

@

MW-37 ?

Asphalt

@

?

MW-109 30 30 "

@ U3-T2 "

MW-58 ?

@

? @

? U3-T1 Asphalt MW-64

@

?

@

MW-50? @

? @

U3-3?

20 20

" "

N Trans.

@ U3-2

?

Overhead U3-C1 Crane R E 60 MW-59 @

?

E MW-49 @

?

N 50 @

? Asphalt @

U3-1 ? @

U3-4D?

@ U3-4S

?

10 Transformers TH 50

" O 40 Yard (Gravel)

"

10 40 Z MW-67 Concrete DISCHARGE

"

" 30 Bridge 30 CANAL Asphalt parking R " 20

@

? Tank C o

B nc O N " 10 @

MW-63 ?

ri r d et ge e 5

"

" MW-66 MW-62 MW-60 5

" @

? @ @

? "0

@?

?

MW-61 Overhead walkway MW-48 0

N LEA

" @

?

C MW-38 HR-1 @

?

@

? Rip-rap GZA GeoEnvironmental, Inc.

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

@

? INDIAN POINT ENERGY CENTER BUCHANAN, NEW YORK Plant North N 1st QUARTER 2009

!

SHALLOW AND DEEP N HUDSON RIVER GROUNDWATER CONTOURS Proj. Mgr.: MJB Dwg. Date: Figure No.:

Designed By: MJB 07-24-2009 Reviewed By: MJB Job No.:

Operator: GAS 41.0017869.91 5 J:\17,000-18,999\17869\17869-91.MG\Figures\GIS\MXD Documents\Q1_2009\17869-91_Q1_2009_F05_Shallow-Deep_GWC.mxd

o ha pha lt c ph lt te C urb cre b As pa sid onc n al t rk ew ret Sign c ur i Grass s ng a lk e Gravel e i dr sid as alt rk ive ncrete curb Gr g pa lk ph in ng Gravel parking wa As rk Asphalt parking a Asphalt p rb Asp lt sidewalk MW-112 l a cu Grave lt t Aspha hal ph lt Asphalt curb ha rb 1st QUARTER 2009 LONGTERM TRANSDUCER MONITORING EVALUATION MAP par k in As As p

Grass alt Gr Storag e

g as Concrete cu As s Asphalt curb ph Co Asphalt wa curb te lk cre n

10 sid 0 e w

g rking de Co si Gravel pa nc al k Co Gravel parkin te n MW-107 MW-101 1,015' 130 re cr si et e Earth 140 w Parking MW-105 640' de 113.87 120.28 121.79 al k Co 140 n 140 ing sid crete ewa lk Asphalt park Storage Gravel Grass storage arking Gravel No Access ing Asphalt p Storage units Asphalt park Asphalt MW-110 LEGEND e

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

120 ew Standby Radionuclide Monitoring Installation 110 sid cr cu sid 10 10 Sh et e

rb ew al 0 100 0 Co ru bs si de k 0 Quarterly groundwater elevation at time of low river tide on 01-09-2009 120 nc 90 ret w 11 90 e al k 80 110 110 32.5 33.3 34.7 p

0 Transducer Monitored Interval m

rbs ra 90 11 p

ca A 33.1 35.2 Multiple Screened di on / C 34.6 n bs Ha Concrete cu co un Interval no longer monitored with Transducer n i ru p a c re t d te Sh C

on k cr 35.6 38.1 w al Sh et 36.3 ru bs e de si Conc.

wa lk Single level monitoring location with duplicate te 36.8 39.2 cre Transformer 32.4 Intervals w/ Depth n Concrete Transducers for redundancy* (Data from primary trans. shown) o k Parking lot C

al A/C ew Grass sidewalk sid UNIT curb Maximum quarterly groundwater elevation at time of low river tide measured between te Q2 2007 and Q1 2009, inclusive.

cre n Minimum quarterly groundwater elevation at time of low river tide measured between Co Asphalt As ph al Q2 2007 and Q1 2009, inclusive.

Concrete sidewalk t Covered Concrete E16A Wood walk Transducer Notes:

k Shrubs * - For locations with multilevel depth monitoring, redundancy provided by monitoring more than one depth at same location.

E16 al ew CB-7 70 d Grass - Redundant transducer data not available for Q1 09 given that the transducer redeployment plan not yet implemented.

si te cre o n As C 80 ph CB-27 al Asphalt t

al k Grass Potential Future Source Locations ew Sid te Concre k w al CB-5B si de , , Unit 2 and Unit 3 Potential H3 Source te Asphalt drive CB-5 re Transformer CB-5A n c Substation "H" Asphalt o (CB-6) E15A C Asphalt 25.21 28.74 32.20 Grass Probable Legacy Release SSCs CB-6 AB CB-24 E15 Concrete curb MW-65 25.12 28.62 31.94 CB-28 Asphalt Unit 2 Fuel Pool (All identified leaks repaired as of December 2007)

Trans k CB-3B 38.60 48.19 48.19 wa 24.79 NA 31.34 E14 l

Si de MW-51 Unit 1 West Fuel Pool (All U1-SFPs drained and inactive as of October 2008) 32.72 33.71 34.97 24.43 30.67 Asphalt parking 33' 42.5' 42.5' 33' 27.74 (U1-CB-8)

A5 lt E1 48.69 49.32 52.35 p ha Terminated Connection To Storm Drain As STO RA G E EASTERN IP1-CB PO O L 22.33 26.78 29.83 Trailer FLOW PATH 39.92 42.75 44.17 CAS K W AS H &

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

iv Dr WAT ER STO RA GE 33.79 35.74 36.77 PO O L 33' 4 MW-43 CB3 MW-41 Activity Data E2B E2C 41.44 46.83 47.99 MW-42 29.33 30.81 31.79 lt F5 U3-CB Concrete curb ha Asphalt 31.08 33.43 33.95 A (U1-CB-9) Isopleth sp MH22 10.27 12.60 13.30 A/C Units 34.43 34.78 34.96 F6 33' 1, 2 1, 3 Drive 29.87 33.62 36.57 30.48 34.13 34.13 F7 Bounding Activity H3 Bounding Activity SR90 UTILITY 44.09 46.44 47.50 A2A 11.34 11.86 25.01 33' 35.07 36.03 36.63 CB-29 MH10 CB-2C > 5,000 pCi/L > 2 pCi/L 90 25.94 30.38 33.31 41.21 44.12 45.52 Transformers UNIT 1 SOUTH WESTERN U3-MH-14 8.18 10.00 10.20 on raised Concrete Pad IP1-CB FLOW PATH 39.59 43.19 Asphalt p 42.10 Data Notes:

As Asphalt 9.45 9.68 9.92 20.77 26.51 31.53 ha MW-45 lt Storage A1

1. Illustration of contaminant plume is a schematic representation only. In reality, the geologic bedrock formation is over 99% solid, p MH21 MW-31 MH9 MH-20 CB-2B Conc. sidewalk As 21.08 26.37 28.35 A2 crystalline rock, with the contaminated water contained only in the remaining (less than 1%) interstitial space (i.e. fractures).

MH11 6.74 7.24 8.05 24.82 32.02 37.16 ha 33 lt ' 2. The H3 bounding isopleth encompasses upper bound values measured over both depth and time. As such, the "plume" is E2 MW-44 F3 E2A MW-32 22.75' MW-47 CB-30 U3-CB 24.33 29.99 32.91 an overstatement of contaminant levels actually existing on-site at any time.

I-2 FUEL (U1-CB-10) 33 F2 F4 CB

3. The Sr-90 bounding isopleth encompasses upper bound values measured over both depth and time. As such, the "plume" is POOL '

MW-56 33.36 34.96 37.99 an overstatement of contaminant levels actually existing on-site at any time.

CB-2A A7 NA MW-30 70 CB-B 48.62 53.73 RW-1 4. Two discrete isopleths have been drawn around MW-39 and 41 given measured Sr90 concentrations greater than 2 pCi/L. It is expected MW-53 80 90 PAB 20.16 27.33 29.93 23.10 28.09 30.88 that similar concentrations exist at other locations along the legacy piping alignment in addition to the locations shown.

Courtyard CB-E 11.53 12.33 12.33 12.60 IP1-CSS TRENCH FLOW PATHCB-31 Asphalt 29.05 29.10 30.15 9.59 Transformers 11.11 Transformers General Notes:

on raised 80 20.10 Concrete 29.16 slab25.13 F1 Asphalt parking MH18 W Concrete Pad U1-CB-21 70 12.36 13.13 13.13 P9.18 10.55 11.49 U1-CB-22 1. Base map was developed from an untitled electronic file provided by Badey & Watson Surveying and Engineering, P.C.,

CB-2 Dated 2/3/06; CAD file name : "GZA.dwg".

ATH Asphalt O

CB-32 60 FL 8.98 20.46 20.46 21.75' CSS TRENCH MH17 CB-1 ROOF DRAIN ELEVATION 65' 70 MW-46 MH8 Transformer area and switch gear MW-34 MW-35 43.8' U1-CB-20 43.8' 43.8' ROOF DRAIN MW-33 Trans U1-CSS 13' Stone retaining wall Gravel B1 11.95 15.05 LAFARGE WELLS IP1 43.8' UNIT 3 14.29 LAF-03 UNIT 2 9.67 11.36 12.06 9.80 11.23 11.66 CSS (EL.=0.0) 9.82 11.25 12.03 E3B 50 B2A E3A MH-23 B2 MW-40 TUNNEL MW-111 Open E3 grate MH7 5.75 5.90 6.41 CB-12 Trans RY Mach. 54.22 59.53 60.39 9.56 10.87 11.24 A stand 40 5.15 5.49 6.86 Gravel P R IM MH-19 47.27 59.13 59.35 2.99 2.99 5.69 D1 Transformer yard CB-16 30 30 Gravel MW-57 B4A 41.65 55.67 56.06 B3 MH23A Trans MW-55 5.89 5.89 8.85 ph MH-5 MH-6 B3A 39.47 54.10 Vent pit As 8.83 11.11 11.11 53.59 CB-F alt Transformer Yard 2.19 2.19 5.17 7.82 8.35 9.02 B5 MW-108 B4 9.38 10.63 12.07 38.89 53.29 53.61 ive CB-13 E4 UTILITY dr MW-36 U2-C1 2.00 5.08 5.61 8.19 8.85 MH-4A 7.29 8.30 2.00 MH-4 7.63 MW-54 9.08 10.71 10.71 8.61 9.65 10.07 Trans. E4A 36.67 49.76 50.49 6.85 NA 9.05 Turbine Generator Building 1 5.78 5.78 8.63 7.65 8.82 B6A NA LAF-02 Concrete Retainin g Wall 8.22 NA 8.22 MW-37 6.49 7.56 8.32 5.95 6.05 7.08 MW-52 Asphalt 4.18 4.45 5.55 6.29 8.12 8.12 6.03 6.68 7.36 5.03 5.20 5.96 CB-17 MW-109 Turbine Generator Building 3 5.24 5.66 7.24 B6 LAF-01 4.05 4.55 5.64 U3-T2 Turbine Generator Building 2 MW-58 4.11 4.11 5.25 CB-14 U3-T1 6.80 NA 10.12 6.52 9.13 9.25 1.95 1.95 3.71 B7 3.76 4.33 Asphalt 4.05 5.40 5.46 6.83 MW-64 Concrete sidewalk

-2.07 -2.07 0.67 U3-3 3.67 3.83 4.51 E5 MW-50 5.34 NA 5.34 D2 6.07 6.50 7.20

-2.38 -2.38 0.41 U3-2 E5A 0 100 200 400 Trans.

MH3 C-1 Feet Overhead U3-C1 Crane 60 MW-59 HUDSON 4.20 4.20 3.74 4.01 4.31 E11 NA 2.69 3.41 4.25 MW-49 0.64 RIVER 0.31 0.31 1.06 0.64 3.58 Asphalt U3-1 U3-4S 50 -0.62 -0.25 1.04 U3-4D 1,557.1'

-0.64 -0.64 0.32 B8 Transformers 0.42 0.44 9.23 Yard 40 MH-2 (Gravel) CB-34 0.82 1.99 2.19 -0.44 -0.06 1.02 -0.74 0.51

-0.74 Concrete E12 MW-67 -5.66 -5.66 2.91 Bridge DISCHARGE 30 CB-19 Asphalt parking

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

-2.08 -2.08 0.86 C C-3

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

-1.43 -1.43 0.74 MW-66 MW-62 -1.68 -1.68 0.55 MW-60 -0.67 -0.67 1.39 E8 CB-33

-0.74 -0.33 0.29 Wooden walk 0.94 MW-61 Overhead walkway

-1.72 -1.72 CB-23 -0.82 -0.82 0.25 -3.14 -3.14 0.03 MW-48

-1.62 -1.62 0.75 CB-15 C2 MH1

-0.86 -0.86 0.81

-2.99 -2.99 0.08 E7 MH12 0.74 -1.13 -1.13 0.61 -1.49 -1.49 1.41

-1.87 -1.87 -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 -1.03 1.61 -0.50 -0.50 0.64 E13 MW-38 Concrete walk Feet HR-1

-2.15 -2.15 0.89 -1.97 -1.97 0.88

-2.86 -2.86 0.18 1.22 NA 3.01 Rip-rap

-1.68 -1.68 1.07 -3.28 -3.28 -0.86

-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

-2.66 -2.66 -0.33 OUTFALL No Access OUT-1 this Area 0.76 NA 1.31 Concrete pier INDIAN POINT ENERGY CENTER BUCHANAN, NEW YORK Plant North N 1st QUARTER 2009 LONGTERM TRANSDUCER N

HUDSON RIVER MONITORING EVALUATION MAP Proj. Mgr.: MJB Dwg. Date: Figure No.:

Designed By: MJB 06-16-2010 Reviewed By: MJB Job No.:

Operator: GAS 01.0017869.92 5A 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

al alt ph t curb b As pa ur al t rk s c in Grass i g dr Gravel as alt rk ive ncrete curb Gr g pa 1 ph in ng Gravel parking As rk Asphalt parking a

p rb Asp lt MW-112 l a cu Grave lt t Fuel Oil Fuel Oil Aspha hal ph lt Asphalt curb As ha Storage Tank Storage Tank rb 1st QUARTER 2009 ROLLING AVERAGE TRITIUM ACTIVITY MAP par k in As p

Grass a lt Gr Storag e

Tritium Results (pCi/L) g Tritium Results (pCi/L) as Concrete cu As s Post Post Post Post Post Post 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 Asphalt curb 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 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 Asphalt curb 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 10 MW-32-59 g

4.15E+03 2.85E+03 1.54E+03 2.44E+03 4.13E+02 rking NA 1.78E+04 1.00E+04 4.87E+03 MW-54-190 1.84E+03 NA 1.25E+03 NA 1.44E+03 NA 1.43E+03 3.39E+03 0 1.49E+03 MW-32-85 8.36E+03 1.11E+04 7.48E+03 8.05E+03 8.62E+03 NA 6.54E+03 1.81E+04 8.36E+03 MW-55-24 1.05E+03 NA 1.40E+03 NA 7.82E+02 NA 1.04E+03 2.19E+03 1.07E+03 MW-32-131 1.03E+03 Gravel pa 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 Gravel parkin 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' 130 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 140 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 640' 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 MW-105 120.28 0.191 140 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 ing NA 1.13E+03 NA NA 1.70E+03 8.48E+02 140 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 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 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 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 arking 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 ing 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 Asphalt p 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 Storage units 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 Asphalt park 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 MW-110 LEGEND 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 Boring / Monitoring Installation Designation 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 e

MW-40-81 NA NA 2.42E+02 NA ND NA 1.61E+02 1.00E+03 2.02E+02 MW-62-138 NA NA rb 5.33E+02 NA 7.50E+02 NA 6.26E+02 2.00E+03 6.36E+02 MW-40-100 ND NA 1.93E+02 NA ND NA Asphalt driv ND 1.00E+03 1.93E+02 MW-62-182 NA NA cu 3.99E+02 NA 4.98E+02 NA 4.98E+02 2.00E+03 4.65E+02 Longterm Radionuclide Monitoring Installation 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 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 Standby Radionuclide Monitoring Installation 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 bs 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 rb Wooden curbs ru 120 MW-42-49 3.24E+03 NA Stone3.16E+03 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 on Sh cr Active Storm Drain 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 Concrete cu NA 4.95E+02 NA 6.23E+02 2.00E+03 4.79E+02 et 120 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 e 110 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 10 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 10 NA 5.34E+02 NA 4.61E+02 1.54E+03 bs 6.83E+02 rb 0 100 Abandoned Storm Drain 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 0 NA 5.44E+03 NA 3.65E+03 1.19E+04 ru 5.05E+03 0 120 Sh 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 90 11 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 90 2.93E+03 NA 1.96E+03 4.95E+03 2.35E+03 110 80 110 Catch Basin 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 0 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

rbs 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 90 11 p Footing Drain 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 nd on C MW-50-42 NA NA 3.73E+02 NA ND NA 2.15E+02 1.00E+03 2.94E+02 MW-67-340 NA NA 5.11E+02 NA 5.23E+02 bs 1.11E+03 5.68E+02 Ha NA c o u6.69E+02 Concrete cu n nit ru 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 Sh 1.00E+03 1.91E+02 Probable Legacy Release Locations 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 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 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 Unit 2 Fuel Pool 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 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 Concrete (All identified repaired as of December 2007)

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 Parking leaks lot 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 Grass curb 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 Unit 1 West Fuel Pool MW-52-162 1.45E+02 NA NA NA NA NA NA 1.00E+03 1.45E+02 B-1 1.17E+03 NA NA NA NA NA NA

• 1.17E+03 MW-52-181 1.56E+02 NA NA NA NA NA NA 1.00E+03 1.56E+02 B-6 ND NA NA NA NA NA NA

• 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 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 Terminated Connection To Storm Drain 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 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 Drain Exfiltration

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

3)

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

As Inter-Structure Joint / Mud Mat 80 CB-27 ph al Asphalt t

Grass Containment Spray Sump Trench CB-5B Depth-Specific Data Asphalt drive CB-5 Transformer CB-5A Substation "H" (CB-6)

Asphalt Average activity of H3 (pCi/L x1000) for each screened Interval.

E15A Asphalt 28.74 0.367 Grass CB-6 AB 11.3 1.2 CB-24 E15 Concrete curb MW-65 CB-28 28.62 0.234 Depth Tank Asphalt 11.9 42.3 Multiple Trans Storage CB-3B 48.19 Tank 28.32 0.503 E14 Screened Tank MW-51 12.6 56.0 Intervals Screened in Soil 33' Tank 42.5' 33.71 42.5' 33' 27.74 0.223 Asphalt parking (U1-CB-8)

A5 E1 49.32 0.329 12.8 Screened in Bedrock 255.0 STO RA G E PO O L East Fuel Pool 26.78 ND TUNNEL Trailer Tank 42.75 ND CAS K W AS H &

DIS A SS E MB LY 20 CAS K L O A D IS O LATIO N P IT A3A PO O L 25.63 A6 0.274 A4 Groundwater elevation for each screened interval at time of low river tide on 1/09/2009.

STO RA G E WEST 80 DIS A SS E MB LY PO O L 37.99 0.282 PO O L MH16 FUEL FUEL 13 TRAN SFE R MW-39 POOL PO O L Asphalt CB3A FA ILE D FUE L PU MP AUX . PO O L SU CTION Containers CB4 WELL 39.75 0.209 Activity Data1,2 Tank U1-SFDS A3 e

iv Dr WAT ER STO RA G E 3 Bar Graphs; Average H3, pCi/L Isopleths; Average H3, pCi/L PO O L 35.74 ND 33' 0.728 Tank Pit MW-41 MW-43 CB3 Water E2B E2C 5,000 - 10,000 46.83 4.866 Tank 30.81 ND No Depth-Specific Samples lt MW-42 Storage F5 U3-CB Tank Concrete curb ha Asphalt A Storage UTILITY (U1-CB-9) 33.43 0.265 sp Tank Tank ND MH22 A/C Units 12.60 8.358 Not Detected (ND) 10,000 - 50,000 34.78 4.1 F6 33' Drive 33.62 2.21 34.13 0.225 F7 46.44 A2A 11.86 1.03 36.03 0.56 0.515 CB-29 ND - 1,000 50,000 - 100,000 Unit 2 MH10 CB-2C 90 30.38 0.691 44.12 18.533 9.519 Condensate UNIT 1 Transformers U3-MH-14 Storage Tank 10.00 0.546 on raised Concrete Pad 2.8 1,000 - 5,000 > 100,000 42.10 5.377 Asphalt p

As Asphalt 9.68 1.106 26.51 MW-45 ha A1 lt Storage 6.25 p MW-31 MH9 MH-20 CB-2B U1-NCD 5,000 - 10,000 As MH21 26.37 A2 MH11 7.24 4.258 3 32.02 2 Note: Illustration of contaminant plume is a schematic ha 33 lt 5.94 '

E2 32.2 MW-47 MW-44 F3 E2A 10,000 - 50,000 representation only. In reality, the geologic bedrock I-2 MW-32 22.75' CB-30 U3-CB 29.99 1.66 (U1-CB-10)

F2 F4 formation is over 99% solid, crystalline rock, with the Liquid FUEL POOL 33 ' CB Nitrogen MW-56 34.96 0.358 65 50,000 - 100,000 contaminated water contained only in the remaining Tank CB-2A A7 MW-30 70 CB-B RW-1 MW-53 80 (less than 1%) interstitial space (i.e. fractures).

90 PAB 27.33 0.399 28.09 0.356 155 WAY Courtyard CB-E 100,000 - 200,000 ALLEY 12.33 118.9 CB-31 Asphalt 29.10 2.088 11.11 Transformers Transformers on raised Condensate 80 Concrete 25.13 slab 2.98 F1 Asphalt parking MH18 Concrete Pad Tank U1-CB-21 260 70 13.13 4.343 10.55 5.52 U1-CB-22 > 200,000 CB-2 Asphalt CB-32 H3 data x1,000 pCi/L 60 20.46 1.75 21.75' B-1 CSS TRENCH CB-1 ROOF DRAIN ELEVATION 65' 70 3 MH8 MW-34 MH17 Transformer area and switch gear MW-46 MW-35 U1-CB-20 1.17 43.8' 43.8' 43.8' ROOF DRAIN MW-33 Trans Storage U1-CSS Tanks 13' Groundwater Elevation Contours Stone retaining wall Gravel B1 43.8' UNIT 3 14.29 0.918 UNIT 2 11.36 1.04 11.23 63.25 (EL.=0.0) 11.25 CSS E3B Ambient "Watertable" Contours B2A E3A TUNNEL 50 MH-23 B2 MW-40 20 Open E3 MW-111 grate MH7 5.75 1.058 CB-12 1/09/2009 (10' Interval)

Trans Mach. 59.53 0.222 10.87 70.15 stand 5 40 5.49 0.673 Contours Other Than 10' Interval Gravel MH-19 59.14 ND MH-5 D1 Transformer yard 2.99 0.605 30 30 Gravel CB-16 Vadose Zone Contaminant Transport 3

ND MW-57 B4A B3 55.67 0.202 MH23A Trans MW-55 5.89 1.138 ph MH-5 MH-6 Vent pit B3A As 11.11 2.725 53.59 0.193 CB-F 50 a lt 2.19 1.95 Note:

Transformer Yard 8.35 1.068 MW-108 B5 B4 Groundwater contours developed from limited data available on 1/09/2009. Actual elevations may 10.63 1.119 53.29 ND UTILITY iv CB-13 E4 dr MW-36 U2-C1 vary from conditions shown and the actual distribution of piezometric heads is likely more e 8.19 1.13 MH-4A 2.00 1.49 MH-4 7.63 1.394 MW-54 9.65 E4A 49.76 0.23 40 complex than indicated.

10.71 0.848 Trans.

0.486 5.78 6.84 B6A Concrete Retainin g Wall Data Notes:

MW-37 7.56 0.379 B-6 6.05 1. Average tritium isopleths and activity values are yearly rolling arithmetic MW-52 Asphalt 3

ND averages of the current and preceeding three quarters' data. Only values greater than the MDC 4.45 4.093 8.12 10.13 6.68 0.278 are used in this average, thus adding a degree of conservatism to the subsequent dose computations.

5.20 CB-17 MW-109 30 5.66 0.294 B6 2. Illustration of contaminant plume is a schematic representation only. In reality, the geologic 4.55 3.937 MW-58 U3-T2 4.11 ND CB-14 bedrock formation is over 99% solid, crystalline rock, with the contaminated water 9.47 9.13 U3-T1 Asphalt 1.95 2.51 B7 contained only in the remaining (less than 1%) interstitial space (i.e. fractures).

4.05 1.014 5.46 5.213 MW-50 MW-64 U3-3 3.83 0.635 3. Storm or foundation drain sampling locations, for which investigation levels are not applicable.

-2.07 0.145 E5 D2 20 6.50 4.88

-2.38 0.156 Trans.

U3-2 E5A MH3 C-1 General Notes:

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

MW-49 0.31 0.64 Asphalt MW-59 U3-1 U3-4D U3-4S 50 -0.25 3.883

-0.64 0.289 B8 50 Transformers 0.44 Yard 40 MH-2 (Gravel) CB-34 10 1.99 0.198 -0.06 2.628

-0.74 0.441 E12 40 Concrete 30 MW-67 -5.66 Bridge DISCHARGE CB-19 30 CANAL Asphalt parking MH13 CB-18 MH15

-2.70 ND -0.08 1.543

-2.08 0.305 C 20 Tank o C-3

-0.07 3.573 B nc 5 ri r 10 MW-60 d et E9 ge e E6 E10

-1.43 0.194 MW-66 MW-63 -1.68 0.318

-0.68 2.35 MW-62 E8 5 CB-33

-0.33 0.683 MW-61 Overhead walkway

-1.72 0.471 CB-23 -0.82 0.38 -3.14 0.323

-1.62 0.887 CB-15 MW-48 C2 MH1

-0.86 5.048

-2.99 0.518 E7 MH12 -1.13 0.472 -1.49 0.479

-1.87 1.169 -0.91 MH14

-3.41 0.855 50 25 0 50 100 150

-2.03 0.372 -2.46 0.54

-1.03 1.147 -0.50 E13 MW-38 Feet HR-1

-2.15 0.425 -1.97 0.477

-2.86 0.462 Rip-rap

-1.68 0.501 -3.28

-2.43 0.568 GZA GeoEnvironmental, Inc.

One Edgewater Drive

-1.33 0.636 Norwood, MA 02062 Phone: (781) 278-3700 Fax: (781) 278-5701 OUTFALL OUT-1

-2.66 0.465 No Access this Area Concrete pier INDIAN POINT ENERGY CENTER BUCHANAN, NEW YORK Plant North N 1st QUARTER 2009 ROLLING N

HUDSON RIVER AVERAGE TRITIUM ACTIVITY1 MAP Proj. Mgr.: MJB Dwg. Date: Figure No.:

Designed By: MJB 06-16-2010 Reviewed By: MJB Job No.:

Operator: GAS 41.0017869.91 6 J:\17,000-18,999\17869\17869-91.MG\Figures\GIS\MXD Documents\Q1_2009\17869-91_Q1-2009_F06_Average-H3.mxd

s alt ph as Grass p As i dr Gravel As al rk ive l t pa ha t ng Gravel parking cu Asphalt parking p rb 1 ph ki l ar MW-112 lt k in As ng Fuel Oil Fuel Oil Grave Aspha par al t Asphalt curb l t Storage Tank Storage Tank cu rb ha rb Grass e

Storag Concrete cu 1st QUARTER 2009 ROLLING AVERAGE STRONTIUM-90 ACTIVITY MAP Asp g

As a lt Gr 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 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 curb 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 1 7.87E+00 MW-31-63 ND NA ND ND ND ND ND 2.00E+00 ND MW-54-144 1.59E+01 NA 1.69E+01 NA 2.02E+01 NA 1.44E+01 3.42E+01 0 0 1.69E+01 MW-31-85 ND NA ND ND ND ND ND 2.00E+00 ND MW-54-173 1.22E+01 NA 1.29E+01 NA 1.61E+01 NA 1.02E+01 2.77E+01 1.29E+01 g rking 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 MW-32-85 ND ND Gravel pa 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 Gravel parkin 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' 130 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 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-105 640' 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 ing NA 3.06E+00 NA NA 4.29E+00 2.15E+00 140 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 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 Asphalt park NA ND NA ND 2.00E+00 ND Storage Gravel 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 arking 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 ing 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 Asphalt p 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 Storage units Asphalt park 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 Asphalt MW-110 LEGEND 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 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-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 Boring / Monitoring Installation Designation MW-40-27 NA NA ND NA ND NA ND e

2.00E+00 ND MW-62-71 NA NA ND NA ND NA ND 2.00E+00 ND MW-30 MW-40-46 NA NA ND NA ND NA ND 2.00E+00 ND MW-62-92 NA NA bND NA ND NA ND 2.00E+00 ND ur Longterm Radionuclide Monitoring Installation MW-40-81 NA NA ND NA ND NA ND 2.00E+00 ND MW-62-138 NA NA c1.21E+00 NA 1.24E+00 NA 2.46E+00 2.00E+00 1.64E+00 Asphalt driv 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 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 Standby Radionuclide Monitoring Installation 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 bs C

rb 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 Wooden NA ND NA ND 2.00E+00 ND ru on 120 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 Sh cr Active Storm Drain 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 Concrete cu NA ND NA ND 2.00E+00 ND et e

110 120 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 10 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 bs 10 Abandoned Storm Drain MW-43-62 NA NA NA NA ND NA NA 2.00E+00 ND MW-63-174 ND NA ND NA 0 ND NA ND 2.00E+00 ru ND 100 120 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 Sh 9.82E-01 90 0 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+0190 NA 1.22E+01 2.71E+01 1.28E+01 11 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 80 110 110 Catch Basin 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 0 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 m

rbs MW-49-26 1.81E+01 NA 1.62E+01 NA 1.53E+01 NA 1.38E+01 3.63E+01 1.59E+01 a

NA ND NA ND NA ND 2.00E+00 ND 90 11 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-67-219 ap r NA MW-67-276ndic NA NA ND NA onA/CND NA ND 2.00E+00 ND Footing Drain u bs Ha Concrete cu 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 c oND nc nit NA ND 2.00E+00 ru ND pa 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 NDre te 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 Probable Legacy Release Locations hru MW-51-40 ND NA ND NA ND NA ND 2.00E+00 ND MW-111 NA NA NA NA 1.02E+00 ND bs NA 3.58E+00 1.02E+00 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 Transformer ND NA ND NA 7.01E-01 NA 1.04E+00 2.00E+00 8.71E-01 Unit 2 Fuel Pool Concrete 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 Parking lot 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 (All identified leaks repaired as of December 2007)

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 UNIT 9.38E+00 6.74E+00 9.08E+00 NA 1.48E+01 7.35E+00 curb 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 Unit 1 West Fuel Pool MW-52-162 1.03E+00 NA NA NA NA NA NA 2.00E+00 1.03E+00 B-1 ND NA NA NA NA NA NA

• ND Asphalt MW-52-181 ND NA NA NA NA NA NA 2.00E+00 ND B-6 ND NA NA NA NA NA NA

• ND 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 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 Terminated Connection To Storm Drain 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 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 exclusion results in a high bias to the average and thus adds a measure of conservatism to the subsequent dose computations. Grass Drain Exfiltration

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.

3)

• Indicates storm or foundation drain sampling locations, for which investigation levels are not applicable. As Inter-Structure Joint / Mud Mat 80 CB-27 ph al Asphalt t

Grass Containment Spray Sump Trench CB-5B Depth-Specific Data Asphalt drive CB-5 Transformer CB-5A Substation "H" (CB-6) Asphalt E15A 4 Asphalt Average activity of Sr90 (pCi/L) for each screened interval.

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

A5 4 E1 49.32 ND STO RA G E 12.8 Screened in Bedrock PO O L East Fuel Pool 26.78 1.12 1.6 Trailer 20 Tank 42.75 ND 4

TUNNEL CAS K W AS H &

DIS A SS E MB LY CAS K L O A D IS O LATIO N P IT A3A PO O L 25.63 1.05 A6 80 A4 Groundwater elevation for each screened interval at the time of low river tide on 01/09/2009.

WEST STO RA G E DIS A SS E MB LY PO O L 37.99 ND PO O L FUEL MH16 FUEL 13 TRAN SFE R POOL PO O L Asphalt MW-39 CB3A FA ILE D FUE L PU MP AUX . PO O L SU CTION CB4 WELL 39.75 ND Containers 3

A3 Activity Data 1,2 e Tank U1-SFDS iv Dr WAT ER STO RA G E 35.74 ND PO O L 33' 12.2 Tank Pit MW-41 Bar Graphs; Average Sr-90, pCi/L Isopleths; Average Sr-90, pCi/L CB3 Water MW-43 E2B E2C 46.83 ND Tank 30.81 ND lt MW-42 Storage F5 No Sample U3-CB Tank 2-4 Concrete curb ha 33.43 Storage Asphalt ND A (U1-CB-9) sp Tank Tank MH22 A/C Units 12.60 ND 4

34.78 205 F6 ND UTILITY 33' Not Detected (ND)

Drive 33.62 5.91 34.13 ND F7 4-8 46.44 ND A2A 11.86 ND 36.03 0.39 CB-29 4 Unit 2 MH10 CB-2C 90 0.74 ND - 1 30.38 5.69 8 - 25 Condensate 44.12 ND UNIT 1 Transformers U3-MH-14 Storage Tank 10.00 ND on raised Concrete Pad 1.7 1.0 - 2.0 42.10 ND Asphalt p > 25 As Asphalt 26.51 9.68 ND MW-45 ha A1 lt Storage MW-31 U1-NCD 2.86 2.0 - 4.0 p MH21 MH9 MH-20 CB-2B As 26.37 A2 MH11 7.24 ND 3 32.02 ND Note: Illustration of contaminant plume is a schematic ha 33 lt 464 '

E2 5.5 MW-47 MW-44 F3 E2A 4.0 - 8.0 representation only. In reality, the geologic bedrock I-2 MW-32 22.75' CB-30 U3-CB 29.99 ND formation is over 99% solid, crystalline rock, with the (U1-CB-10)

Liquid FUEL POOL 33 F2 F4 CB

'

Nitrogen MW-56 34.96 ND 16.1 8.0 - 25 contaminated water contained only in the remaining Tank CB-2A 70 A7 MW-30 RW-1 CB-B MW-53 80 (less than 1%) interstitial space (i.e. fractures).

90 PAB 27.33 ND 28.09 ND 40.4 > 25 Courtyard CB-E ALLEY WAY 12.33 ND 1.5 CB-31 Asphalt 29.10 11.11 Transformers Transformers on raised Condensate 80 Concrete 25.13 slab 2.13 F1 Asphalt parking MH18 Concrete Pad Tank U1-CB-21 13.13 ND U1-CB-22 70 10.55 31.1 Groundwater Elevation Contours CB-2 Asphalt CB-32 60 20.46 7.35 21.75' B-1 CSS TRENCH MH8 MH17 CB-1 ROOF DRAIN ELEVATION 65' 70 3 20 Ambient "Watertable" Contours MW-34 Transformer area and switch gear MW-35 U1-CB-20 ND 43.8' U1-CSS 43.8' 43.8' ROOF DRAIN 01/09/2009 (10' Interval)

MW-33 Trans Storage Tanks 13' Stone retaining wall Gravel B1 43.8' UNIT 3 14.29 0.93 MW-46 UNIT 2 11.36 ND 5 11.23 ND (EL.=0.0) Contours Other Than 10' Interval 11.25 CSS E3B 50 B2A E3A MH-23 B2 MW-40 MW-111 Open E3 grate TUNNEL MH7 5.75 6.14 CB-12 Vadose Zone Contaminant Transport 5 Trans Mach. 59.53 ND 10.87 1.02 stand 40 5.49 3.6 Gravel MH-19 59.14 ND MH-5 Transformer yard 2.99 7.87 30 D1 Note:

30 3 Gravel CB-16 55.67 ND Groundwater contours developed from limited data available on 01/09/2009. Actual elevations may MW-57 B4A B3 5.89 16.85 vary from conditions shown and the actual distribution of piezometric heads is likely more ph MH-5 MH-6 MH23A Trans MW-55 B3A As Vent pit 53.59 ND complex than indicated.

11.11 32.15 CB-F 50 a lt Transformer Yard 2.19 12.85 8.35 18.85 B5 B4 10.63 2.15 MW-108CB-13 53.29 ND Data Notes:

ive E4 dr MW-36 U2-C1 2.00 23.4 1. Average Sr-90 isopleths and activity values are yearly rolling arithmetic averages of the 8.19 ND UTILITY MH-4 MH-4A 7.63 25.63 MW-54 10.71 current and preceeding three quarters' data. Only values greater than the MDC 1.73 9.65 Trans. E4A 49.76 ND 40 ND Turbine Generator Building 1 are used in this average, thus adding a degree of conservatism to the subsequent dose computations.

5.78 22.6 B6A

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

ND 4.45 13 3. Storm or foundation drain sampling locations, for which investigation levels are not applicable.

8.12 5.77 6.68 ND 5.20 CB-17 MW-109 Turbine Generator Building 3 30 4. Two discrete isopleths have been drawn around MW-39 and MW-41 given average 5.66 4.6 B6 U3-T2 Turbine Generator Building 2 4.55 16.77 concentrations greater than 2 pCi/L. It is expected that similar concentrations exist 4.11 ND MW-58 CB-14 U3-T1 9.47 9.13 at other locations along the legacy piping alignment in addition to the locations shown.

Asphalt 1.95 34.8 B7 4.05 0.65 5.46 1.97 MW-64 5. Sr-90 activity at MW-111 may be due to desorption of residual Sr-90 from

-2.07 1.03 U3-3 3.83 0.87 E5 MW-50 D2 backfill used in the Transformer Yard.

20 6.50 21.7

-2.38 ND U3-2 Trans. E5A General Notes:

MH3 Overhead C-1 Crane

1. Base map was developed from an untitled electronic file provided by Badey & Watson Surveying 60 MW-59 U3-C1 4.01 E11 and Engineering, P.C., Dated 2/3/06; CAD file name : "GZA.dwg".

3.41 ND MW-49 0.31 0.64 Asphalt U3-4D U3-4S 50 -0.25 15.85 U3-1

-0.64 3.29 B8 50 Transformers 0.44 Yard 40 MH-2 (Gravel) CB-34 10 1.99 ND -0.06 21.8

-0.74 1.15 E12 40 Concrete 30 MW-67 -5.66 Bridge DISCHARGE CB-19 30 CANAL Asphalt parking MH13 CB-18 MH15

-2.70 ND -0.08 17.83

-2.08 ND C 20 Tank o C-3

-0.07 14.7 B nc ri r 5 10 d et E9 MW-60 MW-63 ge e E6 E10

-1.43 ND MW-66 MW-62 -1.68 ND

-0.68 1.04 E8 5 CB-33

-0.33 0.98 Overhead walkway

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

-1.62 ND CB-15 C2 MH1

-0.86 12.8

-2.99 0.51 E7 MH12 -1.13 1.36 -1.49 0.75

-1.87 ND -0.91 MH14

-3.41 ND

-2.03 ND -2.46 ND

-1.03 ND -0.50 E13 50 25 0 50 100 150 MW-38 Feet

-2.15 ND HR-1 -1.97 ND

-2.86 ND Rip-rap

-1.68 ND -3.28

-2.43 ND

-1.33 1.64 GZA GeoEnvironmental, Inc.

One Edgewater Drive OUTFALL Norwood, MA 02062

-2.66 ND No Access OUT-1 Phone: (781) 278-3700 Fax: (781) 278-5701 this Area Concrete pier INDIAN POINT ENERGY CENTER BUCHANAN, NEW YORK Plant North N 1st QUARTER 2009 ROLLING HUDSON RIVER 1 AVERAGE STRONTIUM-90 N ACTIVITY MAP Proj. Mgr.: MJB Dwg. Date: Figure No.:

Designed By: MJB 06-16-2010 Reviewed By: MJB Job No.:

Operator: GAS 41.0017869.91 7 J:\17,000-18,999\17869\17869-91.MG\Figures\GIS\MXD Documents\Q1_2009\17869-91_Q1-2009_F07_Average-SR90.mxd