State agency review of Con-Edison's plan detailing the release of transformer oil and cable dielectric fluid at the World Trade Center site.
NYC-WTC_000165927–000165937
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Fa.-.: No'/ 3 1539 15; 15 p. eg P.6 NOV 21 '01 06'02FN R & D
The groundwater monitoring wells will be constructed in accordance with Addendum n, Groundwater Monitoring Well Installation Guideiines, and the American Society of Testing Materials (ASTM) Standard Practice D-5092, Standai'd Practice for Design and Inslallaiion of Groundwater Monitoring Wells in Aquifers.
A 6-inch diameter PVC monitoring well win be installed at each successfully completed boring. However, unforeseen subsurface conditions may necessitate the installation of 4* inch diameter monitoring wells. Each well will be furnished with 13 feet of 0.01-slotted screen, with 10 feet below the water table and five feet above the water table. Clean filter sand will be placed around and above the screened interval. A bentonite seal will be placed above the sand pack interval, and the borehole annulus will grouted to grade with a bentonite/cement slurry, Each well will be fumiKhed. with a flush-mount bolt-down road box and a locking well cap. Each well will be developed by pumping and surging following installation. Con Edison expects that the wells will be developed using a vacuum truck to be provided by the EPA. Con Edison requests that NYDEC coordinate the EPA involvement for the monitoring well development.
Groundwater samples will be collected from each monitoring wcU where free product is observed, Soil samples will not be submitted for analysis if free product is identified in the groundwater. If no free product is observed in the groundwater, only soil samples will be collected and they will bo collected from above the water table or at the depth with most visual contamination. The table below illustrates each scenario with the necessary protocol for sampling.
___________ Scenario _____ ____ _____ Sample Submittfll Protocol Evidence of soil contamination. Free Only groundwater sample submitted for product io groundwater______ ______ analysis ______ _ Evidence of soil contamination. No free Only soil sample submined for analysis product in goundwater_________ No evidence of soil contamination. Free Only groundwater sample submitted for product in groundwater_____ analysis No evidence of soil contamination. No free Only soil sample submitted for analysis product in groundwater
Samples will be submitted to Con Edison’s Chem-Lab for both fingerprint analysis (Oil ID) and PCB content. Con Edison expects that wells and/or manholes observed to contain free product will be pumped out by the EPA at an appropriate frequency to facilitate product recovery and that dates, quantitias, and location of product recovered be documented and information provided to Con Edison. Con Edison requests that NYDEC coordinate the EPA Involvement with the pumping of free product.
INVESTIGATION DERIVED WASTES
Investigation derived wastes such as soil cuttings, decontanunation water, disposable poreonal protective equipment (PPE), etc, will be placed into a 55-gallon drum provided
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NYC-WTC_000165934
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NYC-WTC_000165900
Document page containing contact details for Con Edison and JWC Environmental Health & Safety personnel.
8 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000152439
Letter from Con Edison to DEP regarding follow-up on water pumped from a gas main during the World Trade Center recovery.
5 shared non-person entities · 1 shared topics · similarity 0.949
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000148742
Notice instructing staff to preserve original World Trade Center documents for potential legal actions against the City.
6 shared non-person entities · similarity 0.943
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000137900
Archival folder label for Department of Environmental Protection biweekly reports related to World Trade Center activities from 2000 to 2001.
7 shared non-person entities · similarity 0.942
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000149798
Generic form or header page from the Department of Environmental Protection regarding general World Trade Center notices and requests.
4 shared non-person entities · 1 shared topics · similarity 0.941
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000146129
Correspondence from NYC Corporation Counsel providing comments on excerpts of a draft EPA evaluation report regarding the WTC response.
10 shared non-person entities · similarity 0.940
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000152099
Memo discussing a Commissioner's Order to clean WTC residue from a vacant building near the World Trade Center site.
3 shared non-person entities · similarity 0.940
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000144741
Standard administrative notice requiring the retention of original World Trade Center records as evidence for future legal actions.
3 shared non-person entities · 1 shared topics · similarity 0.937
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000134132
US EPA Region 2 letter dated November 15, 2005, confirming completion of environmental review for abatement plans at 133-135 Greenwich Street.
3 shared non-person entities · similarity 0.935
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000094912
Invoice detailing billing for bulk and air sample analysis results including PLM, PCM, and TEM testing at 44 Wall Street.
1 shared non-person entities · similarity 0.934
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000141585
Map showing the condition of buildings at the World Trade Center site as of September 21, 2001.
6 shared non-person entities · similarity 0.934
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000117441
Report from Athenica Environmental Services regarding HVAC and environmental inspections at 375 South End Avenue.
1 shared non-person entities · similarity 0.934
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Document page containing contact details for Con Edison and JWC Environmental Health & Safety personnel.
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NYC-WTC_000152439
Letter from Con Edison to DEP regarding follow-up on water pumped from a gas main during the World Trade Center recovery.
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NYC-WTC_000148742
Notice instructing staff to preserve original World Trade Center documents for potential legal actions against the City.
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Archival folder label for Department of Environmental Protection biweekly reports related to World Trade Center activities from 2000 to 2001.
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Generic form or header page from the Department of Environmental Protection regarding general World Trade Center notices and requests.
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