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Main Title

Explanation of significant difference for the superfund record of decision : Treasure Island Naval Station, Hunters Point Ship Yard Site, Parcel B, San Francisco, CA .

CORP Author

Environmental Protection Agency, Washington, DC. Office of Emergency and Remedial Response.

Publisher

U.S. Environmental Protection Agency, Office of Emergency and Remedial Response], Distributed by National Technical Information Service,

Year Published

1999

Report Number

EPA/541/R-99/040

Stock Number

PB99-963110

OCLC Number

44423998

Subjects

Hazardous waste sites--California

Additional Subjects

Superfund ; Hazardous materials ; Waste disposal ; Land pollution control ; Naval facilities ; Petroleum products ; Polycyclic aromatic hydrocarbons ; Polychlorinated biphenyls ; Pesticides ; Metals ; Soil contamination ; Excavation ; Remedial action ; California ; ESD(Explanation of Significant Difference) ; Explanation of Significant Difference ; Record of Decision ; Treasure Island Naval Station ; Hunters Point Annex ; San Francisco(California) ; San Francisco County(California) ; Volatile organic compounds ; Semivolatile organic compounds ; Cleanup operations

Internet Access

Description	Access URL
	https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=10002HDK.PDF

Holdings

Library	Call Number	Additional Info	Location	Last Modified	Checkout Status
ELBD RPS	EPA 541-R-99-040	repository copy	AWBERC Library/Cincinnati,OH	10/17/2014
NTIS	PB99-963110	Some EPA libraries have a fiche copy filed under the call number shown.		07/26/2022

Collation

1 v. (various pagings) : ill., maps ; 28 cm.

Abstract

This Explanation of Significant Differences (ESD) is for a change to the remedy selected in the Record of Decision for Parcel B, Hunters Point Shipyard dated October 7, 1997 (PB98-964501). In the Parcel B ROD< the Navy's selected remedy for contaminated soils located on Parcel B was excavation to the groundwater table followed by offsite disposal. The depth to groundwater below Parcel B was believed to typically occur at 10 feet below ground surface (bgs). However, in early 998, fieldwork on the Site indicated that the depth to groundwater beneath Parcel B could be as shallow as 2.3 feet bgs. This ESD revises the selected remedy of the Parcel B ROD to require cleanup of contaminated soils to a cleanup level of 10 to the -6th power cancer risk (residential) or to a maximum depth of 10 feet bgs instead of the groundwater table to ensure that the Parcel B remedy is protective of human health and the environment.

Notes

Cover title. "10/20/1998." "PB99-963110." "EPA/541/R-99/040." "1999."

Place Published

Washington, D.C. Springfield, Va.

Supplementary Notes