EXTEND PERFORMANCE PERIOD OF EXISTING A/E CONTRACT NO. 263-95-C-0252 It is the intent of the National Institutes of Health to extend the period of performance of the existing contract (263-95-C-0252) to Maxim Technologies, Inc. to allow for the operation of the Phase 11B remediation action at the Bitterroot Valley Sanitary Landfill (BVSL) "Groundwater Monitoring" in Ravalli County, Montana. The existing contract (base and 4 option years) will expire at the end of calendar year 2000. The need for the Phsase 11B action will erquire extension of that contract through the calendar year 2005 in the form of an additional five option years. Due to sensitive and highly complex nature of the work it is in the best interests of the Government to maintain the continiuty of expertise through extension of this contract. Maxim Technologies Inc. has been associated with the project since its inception and has amassed considerable knowledge of the site and its environs. Maxim is responsible for the design and construction of the Phase11B pilot test facility and full scale implementation facilities. Maxim developed a transient groundwater model which describes the transporation of contamination due to volatile organic compounds in the vicinity of the Bitterroot Valley Landfill. See note 22 Posted 01/05/99 (W-SN285244).

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