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HomeMy WebLinkAboutDSHW-2008-004461 - 0901a068801564eb<^^ RECEIVED Launch Systems Group P.O. Box 707 Brigham City, UT 84302 APR07 20Q8 www.atk.com UIAH UlVlblUN Uh 03^pri,2008 SOLID & HAZARDOUS WASTf: 8200-FY09-003 Ot-0\^lo(^ Mr. Dennis R. Downs, Executive Secretary State ofUtah Department ofEnvironmental Quality Division ofSolid 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 07 - March 08, Promontory EPA ID #UTD009081357 Dear Mr. Downs; Enclosed, please find the ATK Launch Systems Promontory Facility Semi-Annual Progress Report for September 07- March 08. Ifyou have questions regarding these comments, please contact Paul Haricock at (435) 863-3344. Sincerely, (y^cJ^f^^ David P. Gosen, ?.f-.. Director Environmental Services End. c: Walter L. Baker, Director, Division ofWater Quality SEMI-ANNUAL RFI PROGRESS REPORT 1 September 2007 -1 March 2008 ATK Launch Systems Promontory Facility 1. Description Of Work Completed SWMU Assessment Report Schedule As required in the ATK Launch Systems INC. September 20, 2007 Promontory Post-Closure Pennit, ATK submitted a schedule for submitting SWMU Assessment Reports or RFI work plans for the SWMUs listed in Attachment 6 of the permit. Upon Utah DSHW approval ofthe schedule, ATK will proceed with the assessment ofthe remaining SWMUs. 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 ofthe 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-Shu 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 thc bioreactor effluent is sufficient to reduce the perchlorate. A modified test plan was approved by DSHW in August 2007. Addition ofthe amendment took place in September 2007 and a summary ofthe current results is attached. The results are encouraging and ATK plans to proceed using the bioreactor effluent to treat the entire amount of soil. Vegetable Oil Injection Pilot Testing The DSHW has given approval for the pilot testing ofthe injection of vegetable oil at the source areas ofthe M-136 bum grounds. This injection was completed in September 2007. Preliminary results ofthe testing is attached showing results from the injection well (A-l) and nearest down gradient well (T-2). These results indicate degradation ofthe perchlorate is proceeding. The monitoring shows that the process will take additional time for the oil to spread and for the microbial population to increase for degradation to occur. A report detailing the results of this test will be forthcoming. 2. Summaries of all findings Summary tables ofthe findings for the treatment perchlorate in soil of pilot test and the vegetable oil injection pilot test are attached. Work on these projects is still ongoing and a fmal or interim report detailing the results including raw data will be submitted in forthcoming reports. 3. Summaries of all problems or potential problems encountered during the reporting period There were no significant problems encountered during the reporting period. 4. Actions taken to rectify problems Thiokol continues to review all available information and pursue all avenues to resolve any uncertainty associated with the solid waste management units. 5. 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 management units, and SWMU Assessment report preparation. Pilot tests for perchlorate contaminated soil bio-remediation, vegetable oil injection will be ongoing through the nexl reporting period. Preliminary Results from Promontory Pilot Test of Perchlorate in Soil Treatment Perchlorate Reduction - November 2007 Field Reading 300 250 ro o a: LU 150 w OJ ro o 100 50 D Untreated • Treated •• 88% Reduction 1^^^ North Soil Rle 400 ? Q. LU O 2 •2 -icin nJ D Untreated • Treated Perchlorate Reduction - March 2008 Field Reading . 97% Reduction North Soil Pile Preliminary Results from Promontory Vegetable Oil Injection Pilot Test Vegetable Oil Monitoring (ppb) Well A-l Date June 2007 Nov 2007 March 2008 ^•^H Tr(Si ^^ ,. . .- .. , fl^M. M) ms) M) 11^ TCA 128 3.9 2.6 Vegetable Oil Monitoring (ppb) Well T-2 Date June 2007 hi:^'ii:ijMii'i%f^'