The federal government and the state of Washington reached a $58 million agreement with Boeing, Lockheed Martin, and the City of Moses Lake, Washington to clean up trichloroethylene (TCE) contamination from groundwater at the Moses Lake Wellfield Superfund site. Under a consent decree, Boeing, Lockheed Martin and Moses Lake will provide a total of $3.25 million to resolve their liability under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) – Boeing will pay $2 million and Lockheed Martin will pay $500,000. The site rests on 15 square miles in Grant County, Washington. Between 1942 and 1966 a substantial portion of the site was used as the former Larson Air Force Base. Boeing and Lockheed conducted operations there, including flight testing, delivery of B-52 aircraft and missile assembly. The operations conducted by Boeing and Lockheed included the use and disposal of TCE. The City of Moses Lake owns and operates a water and sewage treatment plant within the site which may also have been a source of TCE pollution.