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Main Title

Superfund record of decision : San Gabriel Valley Site (Area 1), El Monte OU, Los Angeles, 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-99/043

Stock Number

PB99-964503

OCLC Number

44119475

Subjects

Hazardous waste sites--California

Additional Subjects

Superfund ; Hazardous materials ; Water pollution control ; San Gabriel Valley ; Ground water ; Extraction ; Water treatment ; Water pollution monitoring ; Remedial action ; California ; Record of Decision ; Los Angeles(California) ; Los Angeles County(California) ; Volatile organic compounds ; Cleanup operations

Internet Access

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

Holdings

Library	Call Number	Additional Info	Location	Last Modified	Checkout Status
ELBD RPS	EPA 541-R-99-043	repository copy	AWBERC Library/Cincinnati,OH	10/17/2014
NTIS	PB99-964503	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 Interim Record of Decision (ROD) addresses groundwater contamination at the El Monte Operable Unit (El Monte OU) located within the San Gabriel Valley Superfund Site Area 1 in Los Angeles County, California. The selected remedy is containment of groundwater contaminated with VOCs in the shallow and deep zones in the El Monte OU to prevent further migration of existing groundwater contamination. This remedy includes performance criteria that will require extraction and treatment of contaminated groundwater at certain locations along the downgradient edge of the contamination and will require continued monitoring and evaluation at other locations. Most likely, the treated groundwater will be discharged to Eaton Wash (more probably for shallow groundwater) or provided to local water purveyors (more probably for deep groundwater). Other discharge options may be evaluated. In addition, this remedy includes monitoring in the shallow and deep groundwater zones in the El Monte OU.

Notes

Cover title. "6/23/1999." "PB99-964503." "EPA/541/R-99/043." "1999."

Place Published

Washington, D.C. Springfield, Va.

Supplementary Notes