Problems/Comments

The Point MacKenzie Northern Eclipse Liquid Natural Gas (LNG) site was developed in 1996 as a natural gas processing facility. Natural gas is piped to the facility from Cook Inlet and then compressed, concentrated, and stored prior to being shipped by truck to the Fairbanks LNG facility for distribution. Improvements at the site include a shop building, office building, garage, compression machinery, pressure vessels, glycol cooling systems, and pumping and distribution equipment. Much of the machinery and several of the structures are skid-mounted and/or housed in portable buildings. Water for sanitary facility use is supplied by a well located near the southeast corner of the site. A subsurface site investigation in 2005 consisted of 15 soil borings to depths up to 4.5 feet below ground surface (bgs) for visual observation of soils and collection of soil samples and collection of one groundwater sample from an on-site water well. The stabilized groundwater level in the on-site well in August 2005 was 35 feet bgs. The well log reviewed by SECOR does not provide the screened interval of the well. SECOR infers that the interval of coarse gravel encountered between 215 and 220 feet is the water-bearing zone targeted by the well driller, but it is possible that the well is screened across one or more water-bearing zones. The static water level of 35 feet bgs indicates that either the deep water-bearing zone is under confined conditions, allowing the static level to rise approximately 180 feet in the well casing, or the well is screened across one or more of the shallower zones. DRO and RRO were not detected above the respective Method Reporting Limits (MRLs) in groundwater sample collected from the on-site well in August 2005. Diesel Range Organics (DRO) and Residual Range Organics (RRO) were detected at concentrations ranging up to 30,000 mg/kg and 19,400 mg/kg, respectively, in soil samples collected in August 2005. The soil cleanup levels for DRO and RRO were exceeded in most surface soils and in six borings in the shallow subsurface up to 3 feet bgs. Metals concentrations in soil were generally similar to the concentrations detected in the two background samples collected, except for elevated concentrations in surface soils beneath the LNG skid building. GRO were not analyzed for in the site soils. At the time of site intake, no remediation or disposal activities with respect to the RRO and DRO had been conducted. --------------------- This site also includes spill no. 04239900101, previously tracked under Hazard ID 4604 / Reckey 2004220100101. The problem/comment field for that site indicated: An estimated 150 gallons of engine lube oil were released beginning in January 2004 from oil pan penetrations covered with gasketed bolted plates on the BTB compressor #2. The spill was not reported until July 1, 2005, after some initial excavation had taken place. ~11 cubic yards of soil were excavated, until soil staining was no longer visible, and then backfilled with clean soil. No confirmation samples were taken from the excavation. Contaminated soil was stockpiled on site. Samples were taken from the stockpile on 6/5/07 and analyzed for DRO (up to 758 mg/kg) and RRO (up to 10,600 mg/kg). Excavation activities were limited due to proximity of the compressor building and facility piping. Staining remained at the edge of the building's outer edge. Contamination remains beneath the compressor room and further remediation is planned when the facility is decommissioned (within 5 years). Site is fenced and has limited access.

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No associated sites were found.