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Home My WebLink AboutDSHW-2007-004645 - 0901a068801565b2Launch Systems Group P.O. Box 707 Brigham City, UT 84302 www.atl<.com RECEIVED (77.01050 MAR 29 2007 27 March 2007 ,,. .UJAH DIVISION ^^ 8200-FY07-092 SOLID & HAZARDOUS WASTE Mr. Dennis R. Downs, Executive Secretary State of Utah Depaitment of Environmental Quality Division of Solid and Hazardous Waste 288 N. 1460 W. P.O. Box 144880 Salt Lake City, Utah 84114-4880 Subject: ATK Launch Systems Promontory Facility, Semi-Annual RFI Progress Report for September 06 - March 07, Promontory EPA ID # #UTD009081357 Dear Mr. Downs Attached, please find the ATK Launch Systems Promontory Facility Semi-Annual Progress Report for September 06- March 07. If you have questions regarding these comments, please contact Paul Hancock at (435) 863-3344. Sincerely, David P. Gosen, P.E., Director Environmental Services SEMI-ANNUAL RFI PROGRESS REPORT 1 September 2006 -1 March 2007 ATK Launch Systems Promontory Facility 1. Description and estimation of the percentage of the RCRA Facilities Investigation completed In the last report 1 March 2006 - 1 September 2006 two new sites were added to the SWMU list, these are two septic tank drain fields in the Plant 3 facility, SWMU #678, M-201 septic tank drain field and SWMU #679, M-205 septic tank drain field. The addition of these new SWMUs is a result of increasing contamination levels in the water supply well in Plant 3 Well 3A. As described in previous correspondence with the DSHW, trichloroethylene (TCE) and perchlorate have been detected in the well. The well is not a drinking water source and signs are posted that it is not to be used for dinking water. Bottled water is supplied for drinking. Both of the drain fields are domestic systems only with two hand washing sinks, and two showers and toilets connected to M-201 and two toilets and hand washing sinks being connected to M-205. ATK is finalizing a treatment system to address the contamination and respond to March 19, 2007 DSHW comments to the preliminary treatment plan. A portion of the treatment plan will potentially include the optimization ofthe two septic tanks for the treatment of perchlorate. Septic tanks can be designed and operated to effectively remove nitrate through bacterial reduction, this is the same reductive process that degrades perchlorate. Pilot test for Treatment of Perchlorate Contaminated Soils. As described in the September 2005 RFI semiannual report, a perchlorate in soil treatment pilot test was started. This soil was the result of the cleanup of perchlorate spills including SWMU 677. The DSHW approved the test plan entitled Work Plan For a Corrective-Measure Pilot Test to Evaluate Ex-Situ Remediation of Perchlorate-Contaminated Soil, September 2005. The bio-piles have not appeared to have gone totally anaerobic at this point as perchlorate degradation has been minimal and the use of animal manures has added additional nitrate. ATK has been investigating the mixing of additional simple sugar electron donors and M-705 perchlorate treatment bio- reactor effluent into the piles to enhance the biologic action and drive the piles anaerobic. It appears that the use of only the bioreactor effluent is sufficient to reduce the perchlorate. A modified test plan has been submitted to DSHW for approval. Additional Perchlorate Treatment Pilot Testing The DSHW has given approval for the pilot testing to of two treatment technologies. One will be the injection of vegetable oil at the source areas of the M-136 bum grounds. A conceptual design figure is attached. The other pilot tesl will be the continuation of the sparging of electron donor up-gradient of well B-6. In this instance a different donor^ ethanol, will be sparged into the subsurface ground water for the period of one month. 2. Summaries of all flndlngs No findings to report at this time. Work on these projects will begin in the next reporting period. 3. Summaries ofall changes made In the RCRA Facility Investigation during the reporting period The ongoing implementation ofthe perchlorate contaminated soil treatment pilot test as a means of treating perchlorate releases to the soil. Additional pilot tests for treatment of contaminated water as specified above. 4. Summaries of all contact with representatives of the local community, public Interest groups or State Government during the reporting period Correspondence regarding RFI activities has been limited to the Division of Solid and Hazardous Waste and the Division of Water quality. 5. Summaries of all problems or potential problems encountered during the reporting period There were no significant problems encountered during the reporling period. 6. Actions taken to rectify problems Thiokol continues to review all available informalion and pursue all avenuesto resolve any uncertainty associated with the solid waste management unils. 7. Changes In personnel during the reporting period There are no changes in personnel. The existing environmental staff will continue to conduct the sampling when possible. Contractors will be used when specialized equipment is required. 8. Projected work for the next reporting period Efforts for the next reporting period will focus on receiving approval for voluntary corrective measures, investigating additional solid waste managemeni unils, and report preparation. Pilol tests for perchlorate contaminated soil bio- remediation, vegetable oil injection will be ongoing through the next reporting period. 9. Copies of dally reports, Inspection reports, laboratory and monitoring data Copies of the test dala for these pilot tests will be provided to the DSHW as they become available ihrough the next reporling period. c-6 GENERAL DIRECTION OF GROUNDWATER FLOW 1 a 1 C-2 A-1 / o T-2 / •INITIAL SPREAD CF EMULSIFIED OIL D-2 A-5 A-4 LEGEND ® INJECTION WELL O EXTRACTION WELL ^ MONITORING WELL 0' 300' ^^ CONCEPTUAL LAYOUT OF PROMONTORY VEGOIL PILOT TEST Inject oil at well A-l. Extract water at T-2. Monitor In C-2, D-2 A-5, A-5 and other down gradient wells.