EPA ID# WA9571924647
EPA Region 10
Spokane County

5th Congressional District

Other Names:
Last Update: April, 2010

Show details for Site DescriptionSite Description
Hide details for Threats and ContaminantsThreats and Contaminants

Media Affected: Groundwater, Soil & Sludges, Air
Groundwater, soil, and sediments are contaminated with volatile organic compounds (VOCs), primarily trichloroethylene (TCE), as well as semi-volatile organic compounds (SVOCs) and inorganic compounds. People who ingest or come into direct contact with contaminated groundwater may suffer adverse health effects. The sand and gravel beneath the site allows contaminants to migrate into the groundwater, as well as allowing contaminated groundwater to migrate across the base and beyond the base boundaries. Volatilization of compounds such as TCE, found dissolved within shallow ground water, can pose a threat to the occupants of some buildings.

Hide details for Cleanup ProgressCleanup Progress

Due to the fact that there are a large number of sites at Fairchild, the Air Force elected to group them into four sequenced projects to make the process of investigating them and selecting cleanup actions for them more manageable. The background and current status of the sites composing these projects are discussed in greater detail below.

In 2000, the Air Force completed a five-year review to evaluate the continued protectiveness of its ongoing cleanup actions at the facility. The second Five-Year Review was due in December 2005 and has not yet been completed by the Air Force. EPA is working with the Air Force to finalize this Five-Year Review report as soon as possible. In addition, an Explanation of Significant Differences (ESD) for land use controls is needed. It is anticipated that this will be completed in 2008.

Operable Unit 1
This project consists of the Craig Road Landfill, the primary disposal site for municipal and production wastes produced at Fairchild from 1958 to 1977. An investigation revealed that wastes disposed in the landfill were contaminating groundwater near the site with TCE, including the water supply wells for a mobile home park adjacent to the landfill site. The Air Force provided an alternate water supply to those residents in 1989, and instituted a monitoring program to verify that other water supply wells in the vicinity of the base were not experiencing contamination. In 1991, the Air Force initiated a removal action to capture and treat contaminated groundwater at the site boundary. The Record of Decision (ROD) for this project was signed in February 1993. The Air Force completed a landfill cap and an expansion of the groundwater containment and treatment system in 1995 as part of the cleanup action called for in the ROD. The landfill cap was installed to prevent water from infiltrating the contaminated landfill and transporting contaminants into the groundwater. The groundwater containment and treatment system captures groundwater as it leaves the source areas of the landfill and removes the contamination before returning the water to the aquifer. Operation of the groundwater containment and treatment system as well as long-term monitoring of the groundwater beneath the landfill and the surrounding area are ongoing.

Operable Unit 2
This project includes seven sites: an old fire training pit, a wastewater lagoon, a drywell, an old landfill, and three fuel spill sites on the flightline. The Record of Decision (ROD) for this project was signed in July 1993. Remedial work is either underway or completed with monitoring at all of the sites.

Wastewater Lagoons
The wastewater lagoons historically provided retention and settling for flightline stormwater runoff and industrial waste discharges from floor and shop drains in aircraft maintenance buildings along the flightline. The industrial wastes are now pretreated as needed and discharged to the sanitary sewer, and the lagoons are used principally for the stormwater treatment. The lagoons discharge to No-Name Ditch, which flows off the base and through neighboring agricultural and residential properties for about a mile before percolating into the ground. Investigation of the site found a plume of TCE in groundwater originating in the immediate area of the lagoons and flowing east under agricultural land beyond the base boundary. In 1995, the Air Force installed a system to capture and treat contaminated groundwater in the area of the base site boundary. Operation of the system is ongoing, as is the monitoring of the plume and of nearby residential water supply wells.

In 2000, the Air Force performed an additional investigation to identify the source of the groundwater contamination, and recovered 35 drums containing a variety of wastes, including TCE. The drums had been buried, possibly in the process of filling a lagoon which had been in that location during the 1950s and 1960s. The Air Force evaluated additional cleanup alternatives to address both residual contamination in the source area and the off-base portion of the contaminant plume, which currently extends for about a quarter of a mile beyond the base boundary.

In early 2001, the base completed an evaluation of utilizing carbon sources to enhance biodegradation of chlorinated solvents in groundwater. An application of 500 gallons of food-grade soybean oil was made to the site near the area of excavated drums. In 2004, the source removal and enhanced biodegradation had been so successful; the groundwater treatment plant was idled and placed in stand-by mode.

Operable Unit 3
The third project consists of 20 sites. Investigations conducted for this project found that no contamination existed at twelve of these sites. The Air Force, EPA and the State of Washington made preliminary determinations of no further action for these sites during 1991. The ROD formalizing those determinations of no further action and selecting remedies for the eight sites requiring cleanup was signed in 1995. Of the eight sites, remedial work (including monitoring) has been completed at four sites; all remedial work except ongoing monitoring has been completed at three of the sites; and the one remaining site is undergoing active remediation.

Operable Unit 4
This project includes eleven sites at various locations across the base. Several of these sites are associated with oil/water separators, underground storage tanks, and surface water ditches. Through its compliance program, the Air Force has upgraded or removed all of the old oil/water separators and underground storage tanks with which the sites in this project are associated. This project also encompasses the groundwater investigation currently being conducted along the north edge of the flightline for TCE plumes identified during investigations of several sites from Operable Unit 2 and 3, but which were not attributable to those sites themselves. A ROD (addressing all but one site) will be completed in 2006 with another ROD for site SS-39 alone in 2008.

Hide details for Regional ContactsRegional Contacts

SITE MANAGER(S):Chuck Hinds (state)
E-MAIL ADDRESS:chin461@ecy.wa.gov
PHONE NUMBER:360-407-7210

Jonathan Williams (EPA Contact)
Information pertaining to this site is housed at the following location(s):
Fairchild AFB Environmental Flight (Administrative Record)
Fairchild AFB, WA 99011

Spokane Falls Community College Library (Information Repository)
West 3410 Fort George Wright Drive
Spokane, WA 99224