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NPL Site Narrative for Hassayampa Landfill

HASSAYAMPA LANDFILL
Hassayampa, Arizona

Federal Register Notice:  July 22, 1987

Conditions at proposal (June 10, 1986): The Hassayampa Landfill covers 77 acres 40 miles west of Phoenix, in Hassayampa, Maricopa County, Arizona. Since 1961, the county operated the landfill, accepting municipal refuse. The county purchased the landfill in 1963. Between April 1979 and October 1980, the landfill was designated by the county as an interim disposal site for solid and liquid hazardous waste.

On-site monitoring wells are contaminated with chlorinated organic solvents, including 1,1,1-trichloroethane and trichloroethylene, according to tests conducted by the Arizona Department of Health Services (ADHS). To date, contamination has not been detected in off-site wells. Approximately 350 people draw drinking water from private wells within 3 miles of the site. About 2,800 acres of farmland are irrigated by wells within 3 miles.

Hassayampa River, an intermittent stream, is 0.8 mile east of the landfill.

Status (July 22, 1987): EPA has sent notice letters under Section 3007 of the Resource Conservation and Recovery Act informing 108 individuals and companies of their potential responsibility for wastes associated with the site. A remedial investigation/feasibility study to determine the type and extent of contamination at the site and identify alternatives for remedial action will be undertaken by the potentially responsible parties, or by ADHS under a cooperative agreement with EPA.

For more information about the hazardous substances identified in this narrative summary, including general information regarding the effects of exposure to these substances on human health, please see the Agency for Toxic Substances and Disease Registry (ATSDR) ToxFAQs. ATSDR ToxFAQs can be found on the Internet at ATSDR - ToxFAQs (http://www.atsdr.cdc.gov/toxfaqs/index.asp) or by telephone at 1-888-42-ATSDR or 1-888-422-8737.

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