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{{#Wiki_filter:Grundwater and Tritium Flux from Catchments Calculation 07zX                                      . Site Indian Point                                    Prepared By::      MJG Job No. 17869.10                                            Reviewed By:
MW                                              Storm Drains Assumed Values:
Totals Total Building Area Total Paved Area Total Catchment Area        (ftA2)    (ft^2)                  (ft^2)                  Recharge (ft/yr)    Precipitation (ftlyr)
I-
_Surface 3,164,996                        645,967                958,842 Water West Unit 2 0.46                3.84 East Unit 2 Building Area              Middle Unit 2          Building Area.        Unit 1 Building  Unit 3 Building Area (ft^2)                  Building Area    (ftA2)        (ftA2)              Area  (ftA2)          (ftA2) 33,156                          113,954                99,777                  64,817            334,263 Parking Lots to Middle Unit 2 Paved West Unit 2 Paved Unit I Paved Area              Unit 3 Paved Area      be Excluded East Unit 2 Paved Area (ft^2)              Area (ftA2)            Area (ftA2)                (ft^2)              (ftA2)              (ftA2) 19,687                          34,568                  59,252                  69,481            421,060                    354,795 Southern Excluded Northern Excluded Area              Area Catchment            Unit 2 Area            Unit 113 Area Catchment (ft^2)                        (ft^2)          Catchment (ftA2) Catchment (ft^2) 250,529                  1        674,416                571,681                1,668,370    1 Tritium Concentrations(pCi/L)                                                  I Storm Water for East and West          Storm Water for      Storm Water for GW Unit 2                      GW Unit 1/3                Unit 2              Central Unit 2          Unit 1/3 200,000                            620                    651                    2,900              1,560 MW-111                    Avg of MW-108/109 etc    Dec 2005 at MH-2        Avg MH-4 and 4a  U1 CB & U3 Strm Drns 3 gpm                            14 gpm                  12 gpm                  6 gpm              41 gpm Area 2                            Area 3                Zone B                  Zone C            Zone DP&
C:\Docs\StormDrains-MWs\GZA-rpt-Feb27.xls; Sheeta                                                                                      Page I of 5                                                          Print Date: 2/2712006
 
Grundwater and Tritium Flux from Catchments Calculation GZX
:i ý ,                                  Site Indian Point Job No. 17869.10 Prepared By:
Reviewed By:
MJG Potential Water Received by Storm System
            =(Building Area + Paved Area) x Precipitation Parking Lots to      U East Unit 2 Area            Middle Unit 2 Area West Unit 2 Area              Unit I Area          Unit 3 Area      be Excluded      Units 202,895                570,261              610,605              515,648              2,900,126      1,362,263 ftA3/yr 556                  1,562                1,673                1,413                7,946          3,732 ftA3/day 3                      8                    9                    7                    41              19 GPM 5,745,349            16,147,990            17,290,410            14,601,535            82,122,424      38,575,002 1L/Yr The total amount of water available to be received by the storm system is assumed to be the combined area of buildings and paved areas in the catchment multiplied by.the annual precipitation rate. Note this assumes that the amount of water lost to the atmosphere or other sinks after precipitation has fallen on paved or built up surfaces is zero.
Water Directly Recharged to Aquifer from Precioitation
              =(Catchment Area - (Buildinq Area + Paved Area)) x Rechari 1out ern Pxcluded Northern Excluded Area            Area Catchment            Unit 2 Area          Unit 1/3 Area Catchment (ftA2)                  (ftA2)          Catchment (ftA2)              (ft^2)                Units 115,869              218,949                97,721              436,556 ftA3/yr 317                    600                  268                1,196 ftA3/day 2                      3                      1                    6 GPM 3,281,059              6,199,959            2,767,139            12,361,901 L/r INote this calculation only reflects recharge to the aquifer in non-paved areas. The Recharge value listed above and used in this calculation reflects only that portion of precipitation that actually recharges the aquifer.
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C:\Docs\StormDrains-MWs\GZA-rpt-Feb27.xls; Sheet1                                                                                Page 2 of 5                                                              Print Date: 2/27/2006
 
Grundwater and Tritium Flux from Catchments Calculation G OAI ryW zX Site Indian Point                                Prepared By:        MJG Job No. 17869.10                                      Reviewed By:
Water Recharaed to Aouifer (Direct and Storm Water Leakage) and Discharged to Hudson River
            =Direct Recharge + X% Water Received to Storm System Total Water Discharaed to Aauifer unI I Area Catchment (25%
Middle Unit 2, 0%        Unit 1/3 Area Northern Excluded Area            Southern Excluded        East and West        (50% Unit i and Catchment (0% Storm Drain Area Catchment (0%                  Storm Drain        10% Unit 3 Storm Water)                  Storm Drain Water)          Water)            Drain Water)              Units 115,869                218,9491            240,286              984,393  ftA3/yr 317                    600                658                2,697  ftA3/day 2                      3                  3                    14 GPM 3,281,059                6,199,959          6,804,1361          27,874,911  LIYr Water Remaining in Storm Drains and Dischargingq to Canal
            =Storm Drain Water x X% Not Leaking to Groundwater East and West Middle Unit 2 (75% Unit 2 (0% Storm Unit 3 (90% Unit 3                    U Unit 1(50% Storm Water)              Storm Water)            Water)              Storm Water)                  Units 257,824                427,696                    0o          2,610,114 ftA3/yr 706                  1,172                    0                7,151 ftA3/day 4                      6                  0                    37 GPM 7,300,768              12,110,993                    0          73,910,182 L/Yr C:\Docs\StormDrains-MWs\GZA-rpt-Feb27.xls; Sheeti                                                                                Page 3 of 5                                Print Date: 2/27/2006
 
Grundwater and Tritium Flux from Catchments Calculation oil%                                  Site Indian Point Job No. 17869.10 Prebared By:i Reviewed By:
MJG Water Remaining in Storm Drains and Discharging to River East and West Unit 2(100%
Storm Water)                                  Units                  Awca/c 813,500  ftA3/yr 2,229  ftA3/day 12 GPM 23,035,760    L/Yr Flux Calculations Conceptual Model: Where Precipitation is Leaving the Site IIUnit        UnitnI                            Unit2nit                      -              Unit 1/3.
To River (Infiltration +                                  To River 25% Middle    Unit 2 +                            (Infiltration + 50%
W                          0% East and West                                  Unit 1 + 10% Unit Unit 2 Storm Water)                                  3 Storm Water)
To Canal (75%
Middle Unit 2) and To      To Canal (90,%
SW              To Canal (50% Storm Water)            River (100% East          Unit 3 Storm                    NA and West Unit 2            .Water)
Storm Water)
Flux (pCi/Yr)
I            II            Unit I                            Unit 2                  Unit 3                  Unit 113      East/West Unit 2      Middle Unit 2      Total iGWto                      NA                            1.36E+12                    NA                    1.73E+10              NA                NA            1.38E+12 NA____________    NA__1.38E__12
:River SW to                                                                                                                              NA              3.51E+10        1.62E+11I Cana                    1.14E+10                              NA                  1.15E+11                    NA Canalt                                                                                                                          1.50E+10              NA            1.50E+10 SWRto                        NA                                NA                      NA                        NA Rive C:\Docs\StormDrains-MWs\GZA-rpt-Feb27.xIs; SheetP                                                                                        Page 4 of 5                                                                Print Date: 2/27/2006
 
Grundwater and Tritium Flux from Catchments Calculation Site Indian Point                                Prepared By:.        MJG Job No. 17869.10                                    Reviewed By:
Notes:
Recharge rate is an average of values discussed in an USGS modeling report 1 . The calculated values in this report ranged from 3.6 inches/year to 7.5 inches/year. The precipitation value is a mean of the of the reported range for the New York City Area (i.e. 49.69 inches/year at Central Park and 42.46 inches/year at JFK Airport) 2 . The catchment area was defined using the AutoCAD topo for the Site and surrounding area. The catchmentwas defined by starting at the area marked "line of water grant" and "Out-I" on the tablecloth map and tracking backwards which portion of the land surface would likely contribute water to the selected discharge zone. Calculations assume that run-off or overland flow value is negligible. Calculation assumes there are not changes in storage. Calculation assumes that Hudson River is a gaining stream.
: 1. USGS. Water Use, Ground-Water Recharge and Availability, and Quality of Water in the Greenwich Area, FairfieldCounty, Connecticut and Westchester County, New York, 2000-2002
: 2. http://www.ncdc.noaa.gov/oa/climate/online/ccd/nrmpcp.txt C:\Docs\StormDrains-MWs\GZA-r-pt-Feb27.xls; Sheeti                                                                              Page 5 of 5                                                                Print Date: 2/27/2006
 
IPEC Storm Drain and Monitoring Well Source Terms (2005-2006)
Avg Data (2005-2006) from MW 108, 109, U3-1, U3-2, U3-3, U3-4sh, U3-T1, U3-T2, MW-38 Note: 4E-8 used in place of all instances of "ND" MW-38      7.OOE-07  4.OOE-07  1.01 E-06    4.OOE-07 U3-1        4.17E-07  4.OOE-07  4.00E-07      4.00E-07  4.00E-07  4.OOE-07  4.OOE-07    4.OOE-07  3.97E-07  7.44E-07 U3-2        9.60E-07  4.OOE-07  5.1OE-07      4.OOE-07  4.OOE-07  4.OOE-07  4.OOE-07    4.00E-07  4.OOE-07  4.OOE-07
                                                                                          ~I U3-3        4.39E-07  4.OOE-07  4.OOE-07      4.OOE-07  4.OOE-07  4.71 E-07 4.OOE-07    4.OOE-07  4.OOE-07  4.OOE-07 U3-4        4.06E-07  3.99E-07  3.44E-07      4.05E-07  4.OOE-07  4.OOE-07  4.OOE-07    3.99E-07  4.42E-07  5.73E-07 U3-T1      7.03E-07  4.OOE-07  4.OOE-07      4.OOE-07  5.63E-07  4.OOE-07  4.98E-07    4.OOE-07  5.29E-07  7.87E-07 U3-T2      1.59E-06    1.47E-06  1.42E-06    1.28E-06  1.19E-06  1.64E-06    .1.13E-061.33E-06  1.29E-06  2.42E-06 avg =      6.20E-07 uCi/mI Avg Data from MH-2 (2005-2006)                  6.51E-07 in 2005 4.OOE-08 4.OOE-08 4.OOE-08      4.00E-08 in 2006          Avg=    r6.51E-071uCi/ml Avg Data from Unit 3 Systems A, B, C 1.19E-06  6.86E-07  3.32E-06  4.OOE-07      4.00E-07  4.OOE-07  4.OOE-07 4.OOE-07    4.OOE-07  4.OOE-07 4.OOE-07 5.01E-06  4.65E-06  3.60E-06  4.00E-07      2.69E-06  4.OOE-07  8.67E-07 4.OOE-07    4.OOE-07  4.OOE-07 4.53E-06 6.28E-06  3.18E-06  2.50E-06  4.OOE-07      4.OOE-07  4.OOE-07  4.OOE-07 9.97E-07 Avg=    r I.56E-06IuCi/ml
 
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Latest revision as of 16:58, 12 March 2020

GZA - Groundwater and Tritium Flux from Catchments Calculation
ML090500070
Person / Time
Site: Indian Point  Entergy icon.png
Issue date: 12/31/2005
From:
GZA GeoEnvironmental
To:
NRC Region 1
References
Download: ML090500070 (8)
v • d • e


Text

Grundwater and Tritium Flux from Catchments Calculation 07zX . Site Indian Point Prepared By:: MJG Job No. 17869.10 Reviewed By:

MW Storm Drains Assumed Values:

Totals Total Building Area Total Paved Area Total Catchment Area (ftA2) (ft^2) (ft^2) Recharge (ft/yr) Precipitation (ftlyr)

I-

_Surface 3,164,996 645,967 958,842 Water West Unit 2 0.46 3.84 East Unit 2 Building Area Middle Unit 2 Building Area. Unit 1 Building Unit 3 Building Area (ft^2) Building Area (ftA2) (ftA2) Area (ftA2) (ftA2) 33,156 113,954 99,777 64,817 334,263 Parking Lots to Middle Unit 2 Paved West Unit 2 Paved Unit I Paved Area Unit 3 Paved Area be Excluded East Unit 2 Paved Area (ft^2) Area (ftA2) Area (ftA2) (ft^2) (ftA2) (ftA2) 19,687 34,568 59,252 69,481 421,060 354,795 Southern Excluded Northern Excluded Area Area Catchment Unit 2 Area Unit 113 Area Catchment (ft^2) (ft^2) Catchment (ftA2) Catchment (ft^2) 250,529 1 674,416 571,681 1,668,370 1 Tritium Concentrations(pCi/L) I Storm Water for East and West Storm Water for Storm Water for GW Unit 2 GW Unit 1/3 Unit 2 Central Unit 2 Unit 1/3 200,000 620 651 2,900 1,560 MW-111 Avg of MW-108/109 etc Dec 2005 at MH-2 Avg MH-4 and 4a U1 CB & U3 Strm Drns 3 gpm 14 gpm 12 gpm 6 gpm 41 gpm Area 2 Area 3 Zone B Zone C Zone DP&

C:\Docs\StormDrains-MWs\GZA-rpt-Feb27.xls; Sheeta Page I of 5 Print Date: 2/2712006

Grundwater and Tritium Flux from Catchments Calculation GZX

i ý , Site Indian Point Job No. 17869.10 Prepared By:

Reviewed By:

MJG Potential Water Received by Storm System

=(Building Area + Paved Area) x Precipitation Parking Lots to U East Unit 2 Area Middle Unit 2 Area West Unit 2 Area Unit I Area Unit 3 Area be Excluded Units 202,895 570,261 610,605 515,648 2,900,126 1,362,263 ftA3/yr 556 1,562 1,673 1,413 7,946 3,732 ftA3/day 3 8 9 7 41 19 GPM 5,745,349 16,147,990 17,290,410 14,601,535 82,122,424 38,575,002 1L/Yr The total amount of water available to be received by the storm system is assumed to be the combined area of buildings and paved areas in the catchment multiplied by.the annual precipitation rate. Note this assumes that the amount of water lost to the atmosphere or other sinks after precipitation has fallen on paved or built up surfaces is zero.

Water Directly Recharged to Aquifer from Precioitation

=(Catchment Area - (Buildinq Area + Paved Area)) x Rechari 1out ern Pxcluded Northern Excluded Area Area Catchment Unit 2 Area Unit 1/3 Area Catchment (ftA2) (ftA2) Catchment (ftA2) (ft^2) Units 115,869 218,949 97,721 436,556 ftA3/yr 317 600 268 1,196 ftA3/day 2 3 1 6 GPM 3,281,059 6,199,959 2,767,139 12,361,901 L/r INote this calculation only reflects recharge to the aquifer in non-paved areas. The Recharge value listed above and used in this calculation reflects only that portion of precipitation that actually recharges the aquifer.

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C:\Docs\StormDrains-MWs\GZA-rpt-Feb27.xls; Sheet1 Page 2 of 5 Print Date: 2/27/2006

Grundwater and Tritium Flux from Catchments Calculation G OAI ryW zX Site Indian Point Prepared By: MJG Job No. 17869.10 Reviewed By:

Water Recharaed to Aouifer (Direct and Storm Water Leakage) and Discharged to Hudson River

=Direct Recharge + X% Water Received to Storm System Total Water Discharaed to Aauifer unI I Area Catchment (25%

Middle Unit 2, 0% Unit 1/3 Area Northern Excluded Area Southern Excluded East and West (50% Unit i and Catchment (0% Storm Drain Area Catchment (0% Storm Drain 10% Unit 3 Storm Water) Storm Drain Water) Water) Drain Water) Units 115,869 218,9491 240,286 984,393 ftA3/yr 317 600 658 2,697 ftA3/day 2 3 3 14 GPM 3,281,059 6,199,959 6,804,1361 27,874,911 LIYr Water Remaining in Storm Drains and Dischargingq to Canal

=Storm Drain Water x X% Not Leaking to Groundwater East and West Middle Unit 2 (75% Unit 2 (0% Storm Unit 3 (90% Unit 3 U Unit 1(50% Storm Water) Storm Water) Water) Storm Water) Units 257,824 427,696 0o 2,610,114 ftA3/yr 706 1,172 0 7,151 ftA3/day 4 6 0 37 GPM 7,300,768 12,110,993 0 73,910,182 L/Yr C:\Docs\StormDrains-MWs\GZA-rpt-Feb27.xls; Sheeti Page 3 of 5 Print Date: 2/27/2006

Grundwater and Tritium Flux from Catchments Calculation oil% Site Indian Point Job No. 17869.10 Prebared By:i Reviewed By:

MJG Water Remaining in Storm Drains and Discharging to River East and West Unit 2(100%

Storm Water) Units Awca/c 813,500 ftA3/yr 2,229 ftA3/day 12 GPM 23,035,760 L/Yr Flux Calculations Conceptual Model: Where Precipitation is Leaving the Site IIUnit UnitnI Unit2nit - Unit 1/3.

To River (Infiltration + To River 25% Middle Unit 2 + (Infiltration + 50%

W 0% East and West Unit 1 + 10% Unit Unit 2 Storm Water) 3 Storm Water)

To Canal (75%

Middle Unit 2) and To To Canal (90,%

SW To Canal (50% Storm Water) River (100% East Unit 3 Storm NA and West Unit 2 .Water)

Storm Water)

Flux (pCi/Yr)

I II Unit I Unit 2 Unit 3 Unit 113 East/West Unit 2 Middle Unit 2 Total iGWto NA 1.36E+12 NA 1.73E+10 NA NA 1.38E+12 NA____________ NA__1.38E__12

River SW to NA 3.51E+10 1.62E+11I Cana 1.14E+10 NA 1.15E+11 NA Canalt 1.50E+10 NA 1.50E+10 SWRto NA NA NA NA Rive C:\Docs\StormDrains-MWs\GZA-rpt-Feb27.xIs; SheetP Page 4 of 5 Print Date: 2/27/2006

Grundwater and Tritium Flux from Catchments Calculation Site Indian Point Prepared By:. MJG Job No. 17869.10 Reviewed By:

Notes:

Recharge rate is an average of values discussed in an USGS modeling report 1 . The calculated values in this report ranged from 3.6 inches/year to 7.5 inches/year. The precipitation value is a mean of the of the reported range for the New York City Area (i.e. 49.69 inches/year at Central Park and 42.46 inches/year at JFK Airport) 2 . The catchment area was defined using the AutoCAD topo for the Site and surrounding area. The catchmentwas defined by starting at the area marked "line of water grant" and "Out-I" on the tablecloth map and tracking backwards which portion of the land surface would likely contribute water to the selected discharge zone. Calculations assume that run-off or overland flow value is negligible. Calculation assumes there are not changes in storage. Calculation assumes that Hudson River is a gaining stream.

1. USGS. Water Use, Ground-Water Recharge and Availability, and Quality of Water in the Greenwich Area, FairfieldCounty, Connecticut and Westchester County, New York, 2000-2002
2. http://www.ncdc.noaa.gov/oa/climate/online/ccd/nrmpcp.txt C:\Docs\StormDrains-MWs\GZA-r-pt-Feb27.xls; Sheeti Page 5 of 5 Print Date: 2/27/2006

IPEC Storm Drain and Monitoring Well Source Terms (2005-2006)

Avg Data (2005-2006) from MW 108, 109, U3-1, U3-2, U3-3, U3-4sh, U3-T1, U3-T2, MW-38 Note: 4E-8 used in place of all instances of "ND" MW-38 7.OOE-07 4.OOE-07 1.01 E-06 4.OOE-07 U3-1 4.17E-07 4.OOE-07 4.00E-07 4.00E-07 4.00E-07 4.OOE-07 4.OOE-07 4.OOE-07 3.97E-07 7.44E-07 U3-2 9.60E-07 4.OOE-07 5.1OE-07 4.OOE-07 4.OOE-07 4.OOE-07 4.OOE-07 4.00E-07 4.OOE-07 4.OOE-07

~I U3-3 4.39E-07 4.OOE-07 4.OOE-07 4.OOE-07 4.OOE-07 4.71 E-07 4.OOE-07 4.OOE-07 4.OOE-07 4.OOE-07 U3-4 4.06E-07 3.99E-07 3.44E-07 4.05E-07 4.OOE-07 4.OOE-07 4.OOE-07 3.99E-07 4.42E-07 5.73E-07 U3-T1 7.03E-07 4.OOE-07 4.OOE-07 4.OOE-07 5.63E-07 4.OOE-07 4.98E-07 4.OOE-07 5.29E-07 7.87E-07 U3-T2 1.59E-06 1.47E-06 1.42E-06 1.28E-06 1.19E-06 1.64E-06 .1.13E-061.33E-06 1.29E-06 2.42E-06 avg = 6.20E-07 uCi/mI Avg Data from MH-2 (2005-2006) 6.51E-07 in 2005 4.OOE-08 4.OOE-08 4.OOE-08 4.00E-08 in 2006 Avg= r6.51E-071uCi/ml Avg Data from Unit 3 Systems A, B, C 1.19E-06 6.86E-07 3.32E-06 4.OOE-07 4.00E-07 4.OOE-07 4.OOE-07 4.OOE-07 4.OOE-07 4.OOE-07 4.OOE-07 5.01E-06 4.65E-06 3.60E-06 4.00E-07 2.69E-06 4.OOE-07 8.67E-07 4.OOE-07 4.OOE-07 4.OOE-07 4.53E-06 6.28E-06 3.18E-06 2.50E-06 4.OOE-07 4.OOE-07 4.OOE-07 4.OOE-07 9.97E-07 Avg= r I.56E-06IuCi/ml

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