Phase 1 Remedial Investigation Work Plan …newtowncreek.info/docs2/2 Remedial...

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305 West Grand Avenue, Suite 300 Montvale, New Jersey 07645 Phone 201.930.9890 Fax 201.930.9805 www.anchorqea.com I:\Projects\Newtown_Creek\Deliverables\Phase 1 RI Work Plan Addendum\04-Reference Area Memo No. 2\NC_Phase1_RI_WPA_ReferenceArea_Memo_No2_2012-10-01_USEPA.docx M EMORANDUM To: Caroline Kwan and Nica Klaber U.S. Environmental Protection Agency – Region 2 Date: October 1, 2012 From: David Haury and Matt Cavas Anchor QEA, LLC Project: 120782-01.01 Re: Phase 1 Remedial Investigation Work Plan Addendum: Reference Area Memorandum No. 2 This memorandum presents the final decision regarding the candidate reference area sampling originally proposed in Section 3 of the Phase 1 Remedial Investigation Work Plan Addendum (WPA; Anchor QEA 2012a) and the subsequent Phase 1Remedial Investigation Work Plan Addendum: Reference Area Memorandum (Reference Area Memorandum; Anchor QEA 2012b). CANDIDATE REFERENCE AREAS SELECTED FOR RECONNAISSANCE SAMPLING The areas to be sampled, shown on Figure 1, are generally located throughout Jamaica Bay and along portions of Lower and Upper East River. The 14 candidate reference areas shown were selected by the U.S. Environmental Protection Agency (USEPA) on September 27, 2012 (Kwan 2012) after review of proposed candidate reference areas. These 14 areas were selected to provide multiple candidate areas within four general categories—industrial with combined sewer overflows (CSOs), industrial with no or minimal CSO input, non-industrial with CSOs, and non-industrial with no or minimal CSO input. Table 1 lists the 14 candidate reference areas and the general category they were placed in. The target locations within each candidate reference area are shown on Figures 2 through 15 and are listed in Table 2 of this memorandum. The sampling activities to be completed, which are summarized in this memorandum, will be performed in a manner consistent with the methods outlined in the Remedial Investigation/Feasibility Study Work Plan (RI/FS Work Plan; AECOM 2011) and described in greater detail in the Field Sampling and Analysis Plan (FSAP; Anchor QEA 2011a). Health and safety measures, standard operating procedures (SOPs), and quality assurance/quality control (QA/QC) protocols will remain

Transcript of Phase 1 Remedial Investigation Work Plan …newtowncreek.info/docs2/2 Remedial...

305 West Grand Avenue, Suite 300 Montvale, New Jersey 07645

Phone 201.930.9890 Fax 201.930.9805

www.anchorqea.com

I:\Projects\Newtown_Creek\Deliverables\Phase 1 RI Work Plan Addendum\04-Reference Area Memo No. 2\NC_Phase1_RI_WPA_ReferenceArea_Memo_No2_2012-10-01_USEPA.docx

M E M O R A N D U M To: Caroline Kwan and Nica Klaber

U.S. Environmental Protection Agency – Region 2 Date: October 1, 2012

From: David Haury and Matt Cavas Anchor QEA, LLC Project: 120782-01.01

Re: Phase 1 Remedial Investigation Work Plan Addendum: Reference Area Memorandum No. 2

This memorandum presents the final decision regarding the candidate reference area sampling originally proposed in Section 3 of the Phase 1 Remedial Investigation Work Plan Addendum (WPA; Anchor QEA 2012a) and the subsequent Phase 1Remedial Investigation Work Plan Addendum: Reference Area Memorandum (Reference Area Memorandum; Anchor QEA 2012b).

CANDIDATE REFERENCE AREAS SELECTED FOR RECONNAISSANCE SAMPLING The areas to be sampled, shown on Figure 1, are generally located throughout Jamaica Bay and along portions of Lower and Upper East River. The 14 candidate reference areas shown were selected by the U.S. Environmental Protection Agency (USEPA) on September 27, 2012 (Kwan 2012) after review of proposed candidate reference areas. These 14 areas were selected to provide multiple candidate areas within four general categories—industrial with combined sewer overflows (CSOs), industrial with no or minimal CSO input, non-industrial with CSOs, and non-industrial with no or minimal CSO input. Table 1 lists the 14 candidate reference areas and the general category they were placed in. The target locations within each candidate reference area are shown on Figures 2 through 15 and are listed in Table 2 of this memorandum. The sampling activities to be completed, which are summarized in this memorandum, will be performed in a manner consistent with the methods outlined in the Remedial Investigation/Feasibility Study Work Plan (RI/FS Work Plan; AECOM 2011) and described in greater detail in the Field Sampling and Analysis Plan (FSAP; Anchor QEA 2011a). Health and safety measures, standard operating procedures (SOPs), and quality assurance/quality control (QA/QC) protocols will remain

Caroline Kwan and Nica Klaber October 1, 2012

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unchanged. The similarities in sampling methods will result in data that can be used to compare candidate reference areas and data obtained from the Study Area.

SAMPLING PROGRAM As described in the WPA (Anchor QEA 2012a) and in the Reference Area Memorandum (Anchor QEA 2012b), the three components of the proposed field sampling program and sample analyses are as follows:

• Surface Sediment Sampling. Surficial sediment grabs will be collected for analyses of constituents of potential concern (COPCs), total organic carbon (TOC), black (soot) carbon, total solids (TS), and grain size. The sampling methods are detailed in Section 3.2.3.1 of the WPA, including the relevant sections of the FSAP (Anchor QEA 2011a) that apply.

• Surface Water Column Profiles. Water column profiles will be measured within each defined sampling region in each candidate reference area selected for initial consideration. The following parameters will be measured at each sampling location: temperature, conductivity, salinity, dissolved oxygen (DO), turbidity, pH, and total water depth. Sampling methods are detailed in Section 3.2.3.2 of the WPA, including the relevant sections of the FSAP (Anchor QEA 2011a) that apply.

• General Field Observations. Field observations will be collected in each of the candidate reference areas selected for initial consideration. These observations will include the following: shoreline type and condition; general flora and fauna sitings; identification and locations of outfalls, seeps, and sheens near the sample areas; observations of areas of wetting/drying and exposed bed; navigational obstructions; access points; recreational use; industrial use; and observation of high tide mark, if visible. Sampling methods are detailed in Section 3.2.3.3 of the WPA.

Surface Sediment Sampling Sampling and processing of surface sediment samples for chemical and physical testing will follow the methods outlined in Section 4.5 of the RI/FS Work Plan (AECOM 2011) and described in greater detail in Section 7 of the FSAP (Anchor QEA 2011a). Determining sample acceptance will follow protocols identified in previously approved USEPA documents including the RI/FS Work Plan (AECOM 2011), QAPP (Anchor QEA 2011b), and FSAP

Caroline Kwan and Nica Klaber October 1, 2012

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(Anchor QEA 2011a). Sufficient surface sediment will be collected to meet volume requirements at each sample location, including split samples, if requested by USEPA. If needed, multiple grabs will be collected and homogenized, as stated in the FSAP (Anchor QEA 2011a).

Water Column Profiling Activities Water column profiling of the reference areas will be performed in a manner consistent with the activities described in the applicable bullets and SOPS in Section 10.2.2 of the FSAP (Anchor QEA 2011a). Those sections detail pre-, during-, and post-profiling activities required in water column profiling of the Study Area.

Field Observations During surface sediment sampling and other on-water activities, a visual survey will be performed of the shoreline and habitat for each reference area. The survey will assist in determining the suitability of each area as a Study Area reference area. During the surface sediment sampling and other on-water activities, recreational, industrial, and ecological use of the reference area will be documented in photographs and in the field log book. The types of potential recreational activities that the field team staff will look for will include kayaking or other non-commercial watercraft on the water, self-contained underwater breathing apparatus (SCUBA) divers, fishing from on the water or from the shore, and crabbing along the shore. The types of industrial use on the reference area include loading and unloading of barges, moored boats, and boat traffic. In addition, identification and locations of outfalls, seeps, and sheens in the vicinity of the sample locations will be documented. Descriptive attributes recorded for shoreline features may include land use adjacent to the shoreline, presence of bulkheads, dimensions, structural condition, material, flow, odor, and debris. The presence and rough dimensions of intertidal areas will be noted. As part of the preliminary ecological evaluation, the field team staff will make general observations of flora and fauna. Digital photographs of identified shoreline features will be taken and recorded in the attribute record on the electronic data form.

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Data Processing, Analysis, and Management Collected surface sediments will be processed, as described in this memorandum, and submitted for analysis at project laboratories. The analyte list will be identical to that used for Newtown Creek surface sediment sampling listed under the Chemical-All List in Table 7-2 of the FSAP (Anchor QEA 2011a). Data collection records from the surface sediment sampling activities, including sample collection, processing, and sample management, will be downloaded as possible and saved to the project files. Paper records will be scanned and sent to the Data Management Task Manager. Survey data will be loaded into a geographic information system- (GIS-) based spatial database and added to the Study Area basemap. Analytical data will be validated, as described in the Quality Assurance Project Plan (Anchor QEA 2011b). Analytical data will be maintained in the project database and accessible only by designated project personnel, as described in the Data Management Plan (Anchor QEA 2011c).

REFERENCES AECOM, 2011. Remedial Investigation/Feasibility Study Work Plan, Newtown Creek.

June 2011.

Anchor QEA (Anchor QEA, LLC), 2011a. Field Sampling and Analysis Plan. Remedial Investigation/Feasibility Study, Newtown Creek. October 2011.

Anchor QEA, 2011b. Quality Assurance Project Plan. Remedial Investigation/Feasibility Study, Newtown Creek. October 2011.

Anchor QEA, 2011c. Data Management Plan. Remedial Investigation/Feasibility Study, Newtown Creek. October 2011.

Anchor QEA, 2012a. Phase 1 Remedial Investigation Work Plan Addendum. Remedial Investigation/Feasibility Study, Newtown Creek. June 2012.

Caroline Kwan and Nica Klaber October 1, 2012

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Anchor QEA, 2012b. Phase 1 Remedial Investigation Work Plan Addendum: Reference Area Memorandum. Remedial Investigation/Feasibility Study, Newtown Creek. September 2012.

Kwan, Caroline (USEPA), 2012. Regarding: EPA's final decision on Reference/background sampling locations for Newtown Creek. E-mail to: Dennis Reznick, Day Pitney; Tom Schadt, Anchor QEA, LLC; Eileen Mahoney, New York City Department of Environmental Protection (NYCDEP); Angela Licata, NYCDEP; Ian Beilby, New York State Department of Environmental Conservation; and Susan Amron, New York City Law Department. September 27, 2012.

DH/MPC:rrw

Caroline Kwan and Nica Klaber October 1, 2012

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LIST OF ATTACHMENTS

List of Tables

Table 1 Final Candidate Reference Areas to be Sampled Table 2 Target Sampling Locations

List of Figures Figure 1 Reference Areas Figure 2 Spring Creek, Non-Industrial with CSOs Figure 3 Fresh Creek Basin, Non-Industrial with CSOs Figure 4 Upper East River – Throgs Neck, Non-Industrial with CSOs Figure 5 Gerritsen Creek, Non-Industrial – No or Minimal CSO Input Figure 6 Hendrix Creek, Non-Industrial – No or Minimal CSO Input Figure 7 Sheepshead Bay, Non-Industrial – No or Minimal CSO Input Figure 8 Westchester Creek, Industrial with CSOs Figure 9 Brooklyn Navy Yard, Industrial with CSOs Figure 10 Flushing Creek, Industrial with CSOs Figure 11 Coney Island Creek, Industrial with CSOs Figure 12 Head of Bay, Industrial – No or Minimal CSO Input Figure 13 Steinway Creek, Industrial – No or Minimal CSO Input Figure 14 Mill Basin, Industrial – No or Minimal CSO Input Figure 15 Lower East River – Newtown Creek, Industrial – No or Minimal CSO Input

TABLES

Table 1Final Candidate Reference Areas to be Sampled

Phase 1 RI WPA: Reference Area Memorandum No. 2Newtown Creek RI/FS Page 1 of 1

October 2012120782-01.01

With CSO Input With No or Minimal CSO InputBrooklyn Navy Yard Head of BayConey Island Creek Steinway Creek

Flushing Creek Mill BasinWestchester Creek Lower East River – Newtown Creek

Spring Creek Gerritsen CreekFresh Creek Basin Hendrix Creek

Upper East River – Throgs Neck Sheepshead BayNote:CSO – combined sewer overflow

Industrial

Non-Industrial

Table 2Target Sampling Locations

Phase 1 RI WPA: Reference Area Memorandum No. 2Newtown Creek RI/FS Page 1 of 3

October 2012120782-01.01

Reference Area Target ID Point_X1 Point_Y1

Spring Creek SP008 1022513.164 178427.174Spring Creek SP007 1022816.319 178184.6506Spring Creek SP006 1023240.734 177748.1088Spring Creek SP005 1023701.529 176972.0339Spring Creek SP004 1024125.945 176414.2302Spring Creek SP002 1024574.613 174983.3423Spring Creek SP001 1024720.127 174498.2954Spring Creek SP003 1024429.419 175490.0825

Fresh Creek Basin FR007 1014797.766 175547.8908Fresh Creek Basin FR006 1015004.086 175296.718Fresh Creek Basin FR005 1015515.402 174435.5544Fresh Creek Basin FR004 1016026.718 173807.6226Fresh Creek Basin FR003 1016807.147 173314.2476Fresh Creek Basin FR002 1017417.138 172551.7593Fresh Creek Basin FR001 1018574.327 171286.9252

Upper East River – Throgs Neck TN002 1032598.409 234559.714Upper East River – Throgs Neck TN005 1038558.819 233526.3765Upper East River – Throgs Neck TN003 1034620.156 235113.8225Upper East River – Throgs Neck TN004 1037076.204 234664.5455Upper East River – Throgs Neck TN001 1031707.012 234049.2751Upper East River – Throgs Neck TN006 1039700.138 233136.4711

Gerritsen Creek GC008 1003633.894 158780.0647Gerritsen Creek GC007 1004289.146 158197.0101Gerritsen Creek GC006 1004930.228 157598.5858Gerritsen Creek GC005 1005564.564 156992.8426Gerritsen Creek GC004 1006198.759 156386.9524Gerritsen Creek GC003 1006830.906 155778.9254Gerritsen Creek GC002 1007412.179 155124.8007Gerritsen Creek GC001 1007955.141 154435.9622Hendrix Creek HC007 1017978.452 177314.6828Hendrix Creek HC006 1018226.515 176853.9944Hendrix Creek HC005 1018616.329 176100.9461Hendrix Creek HC004 1018873.251 175631.3981Hendrix Creek HC003 1019688.315 174107.5826Hendrix Creek HC002 1020042.691 173443.1282Hendrix Creek HC001 1020529.957 172548.3295

Sheepshead Bay SB008 997603.1508 151518.383Sheepshead Bay SB007 998305.9656 151589.8606Sheepshead Bay SB006 999011.4505 151558.3705Sheepshead Bay SB005 999710.5672 151472.9432Sheepshead Bay SB004 1000411.74 151398.7573Sheepshead Bay SB003 1001117.921 151379.7386Sheepshead Bay SB002 1001824.227 151365.9883

Table 2Target Sampling Locations

Phase 1 RI WPA: Reference Area Memorandum No. 2Newtown Creek RI/FS Page 2 of 3

October 2012120782-01.01

Reference Area Target ID Point_X1 Point_Y1

Sheepshead Bay SB001 1002530.523 151351.8246Westchester Creek WE008 1028643.718 244386.3056Westchester Creek WE007 1028694.123 243023.3631Westchester Creek WE006 1027870.434 241935.9204Westchester Creek WE005 1028025.268 240608.8745Westchester Creek WE004 1028498.006 239319.8387Westchester Creek WE003 1028682.679 237977.9942Westchester Creek WE002 1028108.352 236742.5938Westchester Creek WE001 1027777.104 235409.0174Brooklyn Navy Yard BN001 990494.392 196198.3472Brooklyn Navy Yard BN002 990957.3803 196785.011Brooklyn Navy Yard BN003 991148.519 196264.9264Brooklyn Navy Yard BN004 991475.1315 195773.3729Brooklyn Navy Yard BN005 991420.3383 195263.2896Brooklyn Navy Yard BN008 992586.4187 196241.2191Brooklyn Navy Yard BN006 991909.7537 197032.9833Brooklyn Navy Yard BN007 992431.7776 197257.7138

Flushing Creek FC006 1028486.28 214223.2022Flushing Creek FC005 1029226.165 216024.7694Flushing Creek FC004 1029344.293 216353.839Flushing Creek FC003 1027732.695 218066.6886Flushing Creek FC001 1026661.11 218269.1928Flushing Creek FC002 1027217.997 218007.6247

Coney Island Creek CI006 988365.3714 151313.1613Coney Island Creek CI007 988595.5497 151585.1903Coney Island Creek CI008 990177.9579 150618.4068Coney Island Creek CI005 987999.0509 150975.9612Coney Island Creek CI004 987851.8504 150734.55Coney Island Creek CI003 987514.4823 150349.4969Coney Island Creek CI002 987201.5876 150428.9029Coney Island Creek CI001 986943.7252 150535.7416

Head of Bay HB004 1053256.361 168641.8475Head of Bay HB006 1053881.091 169121.2911Head of Bay HB008 1054302.42 169963.9501Head of Bay HB007 1053590.518 170298.1079Head of Bay HB005 1052820.503 169833.1925Head of Bay HB003 1051541.986 169179.4055Head of Bay HB001 1049159.295 167784.6599Head of Bay HB002 1050219.883 168583.7331

Steinway Creek SC007 1011505.586 224179.697Steinway Creek SC005 1012150.094 224351.9365Steinway Creek SC006 1011772.279 224335.2679Steinway Creek SC002 1012883.501 224774.2004

Table 2Target Sampling Locations

Phase 1 RI WPA: Reference Area Memorandum No. 2Newtown Creek RI/FS Page 3 of 3

October 2012120782-01.01

Reference Area Target ID Point_X1 Point_Y1

Steinway Creek SC003 1012661.256 224601.9613Steinway Creek SC004 1012378.907 224392.816Steinway Creek SC001 1013105.01 224975.2378

Mill Basin MB008 1007730.369 162416.1815Mill Basin MB007 1007131.47 161039.7577Mill Basin MB006 1007678.838 159645.1558Mill Basin MB005 1008925.593 158908.2055Mill Basin MB004 1010455.647 159168.0813Mill Basin MB003 1011991.43 159436.2238Mill Basin MB002 1013535.628 159660.5078Mill Basin MB001 1014950.111 160321.9373

Lower East River – Newtown Creek LE003 995509.9998 211559.4782Lower East River – Newtown Creek LE002 995213.3596 210950.5857Lower East River – Newtown Creek LE001 995065.0397 210622.7205Lower East River – Newtown Creek LE004 995722.8586 211928.1195Lower East River – Newtown Creek LE005 995972.1166 212278.3137Lower East River – Newtown Creek LE006 996226.9823 212618.5377

Notes:1 = Coordinates are based on NAD83, State Plane, New York Long Island, FeetNAD83 = North American Datum of 1983

FIGURES

WestchesterCreek

FlushingCreek

BrooklynNavy Yard

ConeyIslandCreek

Upper EastRiver –

Throgs Neck

SteinwayCreek

Lower EastRiver –

Newtown Creek

GerritsenCreek

FreshCreekBasin

Headof Bay

HendrixCreek

MillBasin

SheepsheadBay

SpringCreek

LEGEND

Reference Area BackgroundSite Data Boundary

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Figure 1Reference Areas

Phase 1 Remedial Investigation Work Plan Addendum:Reference Area Memorandum No. 2

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Non-Industrial with CSOsPhase 1 Remedial Investigation Work Plan Addendum:

Reference Area Memorandum No. 2Newtown Creek RI/FS

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Non-Industrial with CSOsPhase 1 Remedial Investigation Work Plan Addendum:

Reference Area Memorandum No. 2Newtown Creek RI/FS

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Non-Industrial with CSOsPhase 1 Remedial Investigation Work Plan Addendum:

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Reference Area Memorandum No. 2Newtown Creek RI/FS

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*Tier 1 through 3 CSOs were identified from Citywide CSO Table(NYCDEP 2006). Additional CSO locations were provided in an attachmentto an email from NYC to Anchor QEA on June 4, 2012. These wereassumed here to represent Tier 4 CSOs, based on the previousidentification of Tiers 1 through 3. Estimated flow ranges were provided byCitywide CSO Table (NYCDEP 2006).

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kj NYC Water Quality") EPA SI for Newtown Creeke NOAA Database (Newark)#* Laurel Hill Site - OU6GF Rice et al.

CSO*!(1 Tier 1: >500 MGY!(2 Tier 2: 250 - 500 MGY!(3 Tier 3: 50.7 - 250 MGY!(4 Tier 4: 0 - 50.7 MGY

Figure 7Sheepshead Bay

Non-Industrial - No or Minimal CSO InputPhase 1 Remedial Investigation Work Plan Addendum:

Reference Area Memorandum No. 2Newtown Creek RI/FS

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7:55

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0 300 600 900 1,200Feet

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*Tier 1 through 3 CSOs were identified from Citywide CSO Table(NYCDEP 2006). Additional CSO locations were provided in an attachmentto an email from NYC to Anchor QEA on June 4, 2012. These wereassumed here to represent Tier 4 CSOs, based on the previousidentification of Tiers 1 through 3. Estimated flow ranges were provided byCitywide CSO Table (NYCDEP 2006).

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CSO*!(1 Tier 1: >500 MGY!(2 Tier 2: 250 - 500 MGY!(3 Tier 3: 50.7 - 250 MGY!(4 Tier 4: 0 - 50.7 MGY

Figure 8Westchester Creek

Industrial with CSOsPhase 1 Remedial Investigation Work Plan Addendum:

Reference Area Memorandum No. 2Newtown Creek RI/FS

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7:55

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0 510 1,020 1,530 2,040Feet

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*Tier 1 through 3 CSOs were identified from Citywide CSO Table(NYCDEP 2006). Additional CSO locations were provided in an attachmentto an email from NYC to Anchor QEA on June 4, 2012. These wereassumed here to represent Tier 4 CSOs, based on the previousidentification of Tiers 1 through 3. Estimated flow ranges were provided byCitywide CSO Table (NYCDEP 2006).

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Figure 9Brooklyn Navy Yard

Industrial with CSOsPhase 1 Remedial Investigation Work Plan Addendum:

Reference Area Memorandum No. 2Newtown Creek RI/FS

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7:56

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0 375 750 1,125 1,500Feet[

*Tier 1 through 3 CSOs were identified from Citywide CSO Table(NYCDEP 2006). Additional CSO locations were provided in an attachmentto an email from NYC to Anchor QEA on June 4, 2012. These wereassumed here to represent Tier 4 CSOs, based on the previousidentification of Tiers 1 through 3. Estimated flow ranges were provided byCitywide CSO Table (NYCDEP 2006).

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Figure 10Flushing Creek

Industrial with CSOsPhase 1 Remedial Investigation Work Plan Addendum:

Reference Area Memorandum No. 2Newtown Creek RI/FS

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7:56

:15 AM

0 410 820 1,230 1,640Feet

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*Tier 1 through 3 CSOs were identified from Citywide CSO Table(NYCDEP 2006). Additional CSO locations were provided in an attachmentto an email from NYC to Anchor QEA on June 4, 2012. These wereassumed here to represent Tier 4 CSOs, based on the previousidentification of Tiers 1 through 3. Estimated flow ranges were provided byCitywide CSO Table (NYCDEP 2006).

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Figure 11Coney Island CreekIndustrial with CSOs

Phase 1 Remedial Investigation Work Plan Addendum:Reference Area Memorandum No. 2

Newtown Creek RI/FS

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7:56

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0 410 820 1,230 1,640Feet[

*Tier 1 through 3 CSOs were identified from Citywide CSO Table(NYCDEP 2006). Additional CSO locations were provided in an attachmentto an email from NYC to Anchor QEA on June 4, 2012. These wereassumed here to represent Tier 4 CSOs, based on the previousidentification of Tiers 1 through 3. Estimated flow ranges were provided byCitywide CSO Table (NYCDEP 2006).

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Figure 12Head of Bay

Industrial - No or Minimal CSO InputPhase 1 Remedial Investigation Work Plan Addendum:

Reference Area Memorandum No. 2Newtown Creek RI/FS

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7:56

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*Tier 1 through 3 CSOs were identified from Citywide CSO Table(NYCDEP 2006). Additional CSO locations were provided in an attachmentto an email from NYC to Anchor QEA on June 4, 2012. These wereassumed here to represent Tier 4 CSOs, based on the previousidentification of Tiers 1 through 3. Estimated flow ranges were provided byCitywide CSO Table (NYCDEP 2006).

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Figure 13Steinway Creek

Industrial - No or Minimal CSO InputPhase 1 Remedial Investigation Work Plan Addendum:

Reference Area Memorandum No. 2Newtown Creek RI/FS

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7:56

:39 AM

0 250 500 750 1,000Feet

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*Tier 1 through 3 CSOs were identified from Citywide CSO Table(NYCDEP 2006). Additional CSO locations were provided in an attachmentto an email from NYC to Anchor QEA on June 4, 2012. These wereassumed here to represent Tier 4 CSOs, based on the previousidentification of Tiers 1 through 3. Estimated flow ranges were provided byCitywide CSO Table (NYCDEP 2006).

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Figure 14Mill Basin

Industrial - No or Minimal CSO InputPhase 1 Remedial Investigation Work Plan Addendum:

Reference Area Memorandum No. 2Newtown Creek RI/FS

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Figure 15Lower East River – Newtown CreekIndustrial - No or Minimal CSO Input

Phase 1 Remedial Investigation Work Plan Addendum:Reference Area Memorandum No. 2

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7:56

:54 AM

0 380 760 1,140 1,520Feet

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*Tier 1 through 3 CSOs were identified from Citywide CSO Table(NYCDEP 2006). Additional CSO locations were provided in an attachmentto an email from NYC to Anchor QEA on June 4, 2012. These wereassumed here to represent Tier 4 CSOs, based on the previousidentification of Tiers 1 through 3. Estimated flow ranges were provided byCitywide CSO Table (NYCDEP 2006).