EPA ID# WAD000643577
EPA Region 10
Yakima County

4th Congressional District

Other Names: FMC- Yakima, FMC- Agricultural Chemical Division
Last Update: August, 2012

Hide details for Site DescriptionSite Description

The FMC Corp. (Yakima Pit) site, covering approximately 4 acres in Yakima, operated as a pesticide formulation facility from 1951 until 1986. From 1952 to 1969, FMC disposed of agricultural pesticides in a "poison pit" on-site. Some of the pesticides that may have been disposed of in the pit include DDT, diazinon, and dieldrin. A 6-foot chain link fence restricts access to the pit area. There are approximately 10,000 people living within 1 mile of the site, with the nearest residence located about 200 yards from the facility. Area groundwater is used for drinking water, industrial purposes, crop irrigation, and livestock watering. Groundwater in the immediate vicinity is currently not used, and the land is zoned industrial.

Site Responsibility: This site is being addressed through federal and potentially responsible parties' actions.

NPL Listing HistoryDates
Proposed Date:12/30/1982
Removed Date:
Withdrawal Date:
Final Date:09/08/1983
Deleted Date:

Hide details for Threats and ContaminantsThreats and Contaminants

Media Affected: Groundwater & Soil
Groundwater and soil were contaminated with various pesticides, including DDT derivatives. Potential health threats included direct contact with or ingestion of contaminated groundwater or soil.

Hide details for Cleanup ProgressCleanup Progress

Early Actions: In 1988, FMC, under an Administrative Order, began excavating and removing the contaminated soil from the former disposal pit. Excavation of the pit was stopped at one point due to the high level of groundwater and concern over causing further groundwater contamination. In 1989, while the groundwater was at a seasonal low, the remaining contaminated soil was excavated. Approximately 850 tons of contaminated soil were disposed of in a federally-approved facility.

Long-Term Actions: In 1990, FMC, under an EPA Administrative Order, completed a study to determine the nature and extent of contamination at the site. In 1990, EPA selected a final cleanup remedy that included: additional sampling to further determine the extent of contamination; excavation of contaminated soils; on-site incineration of excavated soils; removal and disposal of other contaminated materials; and on-site disposal of incinerated soils after sampling indicated that the incinerated soil met cleanup standards. FMC completed the site cleanup under an EPA Consent Decree in 1993. A Five-Year Review was completed by EPA in September 1998. The conclusion of the report indicated the remedy continued to be protective of human health and the environment. Groundwater monitoring continued every other year up until the second five-year review. The protectiveness of the remedy was confirmed by the second five-year review, completed in September 2003. Groundwater monitoring was conducted in 2007 prior to the third five-year review. The third five-year review confirmed the protectiveness of the remedy in the short term. To ensure long-term protectiveness, institutional controls are being put in place.

Institutional controls designed to prevent land uses that are inconsistent with the remedy have been developed and are expected to be in place by September 28, 2012. The Institutional Controls will help prevent unacceptable exposure to residual soil and groundwater contamination. A Record of Decision Amendment was used to incorporate institutional controls into the remedy. Environmental covenants will be used to ensure that institutional controls will remain in place and will be enforceable by EPA and the State of Washington.

Hide details for Regional ContactsRegional Contacts

SITE MANAGER(S):Craig Cameron
PHONE NUMBER:509-376-8665
Information pertaining to this site is housed at the following location(s):
Yakima Regional Library (Administrative Record)
102 North 3rd Street
Yakima, WA 98901

EPA Region 10 Superfund Records Center (Administrative Records)
1200 Sixth Avenue, ECL-076
Seattle, WA 98101