250 Water Street

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250 Water Street

250 Water Street250 Water Street250 Water Street
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NYSDEC-APPROVED remedial action work plan

2021-11-15_NYSDEC Approval of Remedial Action Work Plan (pdf)

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2021-11-15_Decision Document (pdf)

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Final RAWP - Text, Figures, & Tables - 250 Water Street - 2021-11 (pdf)

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Appendices (pdf)

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NYSDEC-APPROVED remedial investigation report

The previous environmental reports (Appendix A) can be found in the Project Documents link at the bottom of the page

2021-06-25_NYSDEC Approval of Remedial Investigation Report (pdf)

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Final RIR Text - 250 Water Street - 2021-06-23 (pdf)

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Figures and Tables (pdf)

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Appendices B to F (pdf)

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Appendix G (pdf)

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Appendix H (pdf)

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Appendix I (pdf)

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Appendix J (pdf)

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Appendix K (pdf)

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Parking lot repair work plan

June 2021_Parking Lot Repair Work Plan (pdf)

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NYSDEC-APPROVED remedial design investigation work plan

2022-02-11_250 Water Street_RDI Work Plan_Final (pdf)

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NYSDEC-APPROVED Schedule change notification and approval

2022-03-15 - Schedule Change Notification and Approval (pdf)

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NYSDEC-APPROVED REmedial design report and revised chasp

2022-05-25_NYSDEC Approval of Remedial Design Report and CHASP (pdf)

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2022-05-09 - Remedial Design Report_Test Pit Investigation (pdf)

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2022-05-09_250 Water Street CHASP (pdf)

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NYSDEC-APPROVED revised chasp

2022-06-27_NYSDEC Approval of Revised CHASP (pdf)

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2022-06-27_250 Water Street CHASP (pdf)

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Daily Field Reports

** During review of community air monitoring data for the geotechnical investigation work completed between December 4 and 19, 2021, Langan identified a discrepancy between the raw air monitoring data and the 15-minute time-weighted average calculated data presented in select daily summary reports. Corrected data indicate only minor concentration differences in VOC and mercury vapor data when compared to data presented in the original daily summary reports. Most importantly, no exceedances of CAMP threshold levels were identified for VOCs or mercury during the performance of the geotechnical investigation work.


The discrepancy was a result of a manual processing cut-and-paste error by the company providing CAMP equipment, telemetry and data processing for the recent geotechnical study.  This error resulted in duplicate datasets being used to calculate the 15-minute time weighted averages that were presented in the daily summary reports. The data summary sheets prior to December 4, 2021 and on December 19, 2021 were not affected. 


It should be noted that this was a post-monitoring processing matter that did not impact the accuracy of the real-time monitoring data that was observed by Langan field personnel during the geotechnical investigation work.  

2020-2021_Daily Field Reports - 250 Water Street - C231127 (pdf)Download
2022_Daily Field Reports_through 421a completion - 250 Water Street - C231127 (pdf)Download
2022-June & July_Daily Field Reports - 250 Water Street - C231127 (pdf)Download
2022-August - Sept 16th _Daily Field Reports - 250 Water Street - C231127 (pdf)Download
2022-Sept 17 - Oct 13_C231127_250 Water Street_DFR (pdf)Download
2022-10-14_C231127_250 Water Street_DFR (pdf)Download
2022-10-15_C231127_250 Water Street_DFR (pdf)Download
2022-10-16_C231127_250 Water Street_DFR (pdf)Download
2022-10-17_C231127_250 Water Street_DFR (pdf)Download
2022-10-18_C231127_250 Water Street_DFR (pdf)Download
2022-10-19_C231127_250 Water Street_DFR (pdf)Download
2022-10-20_C231127_250 Water Street_DFR (pdf)Download
2022-10-21_C231127_250 Water Street_DFR (pdf)Download

Community Air Monitoring Results

* * During review of community air monitoring data for the geotechnical investigation work completed between December 4 and 19, 2021, Langan identified a discrepancy between the raw air monitoring data and the 15-minute time-weighted average calculated data presented in select daily summary reports. Corrected data indicate only minor concentration differences in VOC and mercury vapor data when compared to data presented in the original daily summary reports. Most importantly, no exceedances of CAMP threshold levels were identified for VOCs or mercury during the performance of the geotechnical investigation work.


The discrepancy was a result of a manual processing cut-and-paste error by the company providing CAMP equipment, telemetry and data processing for the recent geotechnical study.  This error resulted in duplicate datasets being used to calculate the 15-minute time weighted averages that were presented in the daily summary reports. The data summary sheets prior to December 4, 2021 and on December 19, 2021 were not affected. 


It should be noted that this was a post-monitoring processing matter that did not impact the accuracy of the real-time monitoring data that was observed by Langan field personnel during the geotechnical investigation work.   

2020_CAMP - 250 Water Street - C231127 (pdf)Download
2021_CAMP - 250 Water Street - C231127 (pdf)Download
2022_CAMP_through 421a completion - 250 Water Street - C231127_Part-1 (pdf)Download
2022_CAMP_through 421a completion - 250 Water Street - C231127_Part-2 (pdf)Download
2022-June & July_CAMP - 250 Water Street - C231127 (pdf)Download
2022-August 01-20_CAMP - 250 Water Street - C231127 (pdf)Download
2022-August 21- Sept 23rd_CAMP - 250 Water Street - C231127 (pdf)Download
2022- Sept 26 - Oct 13_CAMP - 250 Water Street - C231127 (pdf)Download
Langan 250 Water St DAMR 10.14.22 (pdf)Download
Langan 250 Water St DAMR 10.17.22 (pdf)Download
Langan 250 Water St DAMR 10.18.22 (pdf)Download
Langan 250 Water St DAMR 10.19.22 (pdf)Download
Langan 250 Water St DAMR 10.20.22 (pdf)Download
Langan 250 Water St DAMR 10.21.22 (pdf)Download

Community Air monitoring - raw data

Langan 250 Water St RAW Data 09.30.22 (xlsx)Download
Langan 250 Water St RAW Data 10.03.22 (xlsx)Download
Langan 250 Water St RAW Data 10.04.22 (xlsx)Download
Langan 250 Water St RAW Data 10.05.22 (xlsx)Download
Langan 250 Water St RAW Data 10.06.22 (xlsx)Download
Langan 250 Water St RAW Data 10.07.22 (xlsx)Download
Langan 250 Water St RAW Data 10.11.22 (xlsx)Download
Langan 250 Water St RAW Data 10.12.22 (xlsx)Download
Langan 250 Water St RAW Data 10.13.22 (xlsx)Download
Langan 250 Water St RAW Data 10.14.22 (xlsx)Download
Langan 250 Water St RAW Data 10.17.22 (xlsx)Download
Langan 250 Water St RAW Data 10.18.22 (xlsx)Download
Langan 250 Water St RAW Data 10.19.22 (xlsx)Download
Langan 250 Water St RAW Data 10.20.22 (xlsx)Download
Langan 250 Water St RAW Data 10.21.22 (xlsx)Download

Community Air monitoring - Jerome J505 RAW DATA

2022-10-06 - Jerome J505 (Handheld) (TXT)Download
2022-10-07 - Jerome J505 (Handheld) (TXT)Download
2022-10-08 - Jerome J505 (Handheld) (TXT)Download
2022-10-09 - Jerome J505 (Handheld) (TXT)Download
2022-10-10 - Jerome J505 (Handheld) (TXT)Download
2022-10-11 - Jerome J505 (Handheld) (TXT)Download
2022-10-12 - Jerome J505 (Handheld) (TXT)Download
2022-10-13 - Jerome J505 (Handheld) (TXT)Download
2022-10-14 - Jerome J505 (Handheld) (TXT)Download
2022-10-15 - Jerome J505 (Handheld) (TXT)Download
2022-10-17 - Jerome J505 (Handheld) (TXT)Download
2022-10-18 - Jerome J505 (Handheld) (TXT)Download
2022-10-19 - Jerome J505 (Handheld) (TXT)Download
2022-10-20 - Jerome J505 (Handheld) (TXT)Download
2022-10-21 - Jerome J505 (Handheld) (TXT)Download

Helpful links

Brownfield Cleanup Program

Brownfield Cleanup Program

Brownfield Cleanup Program

  Information about the Brownfield Cleanup Program 

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Project Documents

Brownfield Cleanup Program

Brownfield Cleanup Program

  Site specific documents on the NYSDEC website 

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Receive NYSDEC Updates

Brownfield Cleanup Program

Receive NYSDEC Updates

  Receive site fact sheets by email 

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 250 Water Street, New York, NY  

NYSDEC BCP SITE NO. C231127