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' <br /> 149 <br /> q <br /> "� furnn lonal W. wily ' <br /> 0110-01 Board �s ,a CentralValle" Rei >r <br /> 7?, <br /> Kart F.Lon;;lev,ScU.1'.E.,(:hair <br /> Linda N. Adnan. Arnold <br /> Serrer�rP ]::, Sacramento Main 0ffiee Schwara.enegger <br /> )1020$.un cemer r)t i'e d:!f SJ Ftanc-t;n(m If.%a,(a I i 1�arnsa 05670-6t1.1 - •.Arasor <br /> f''rnalclion i91h)-16.1-3291 <br /> httpl,tt,k ti nalerhowds ca�o.icznlrahalle} <br /> 14 November 2007 <br /> Mr. Steven Osborn <br /> Kinder Morgan Energy Partners <br /> P.O. Box 1318 <br /> Rocklin, CA 95677 <br /> BIOREMEDIATION PILOT STUDY, WORK PLAN FOR WELL DESTRUCTION, ARID .DRAFT <br /> MONITORING AND REPORTING PROGRAM, HOLT RELEASE SITE, SAN JOAQUIN <br /> COUNTY <br /> California Regional Water Quality Control Roard, Central Valley Region (Regional Water <br /> Board) star( reviewed the, <br /> 13 June 2007 3-Year Evaloation of the Bioremediation Pilot Study(Pilot Study Report) <br /> ® 31 October 2007 Second '3erniannc:al and 2007 Annual Groundwater Monitoring Report <br /> (Annual Report) <br /> ® 1 November 2007 Work Plan for the Destruction of the SVE Wells and Deep Monitoring <br /> Wells (Work Plan) <br /> CH2M Hill submitted these reports on beha`,f of Kinder Morgan Energy Partners, L.R. (KMEP) <br /> for the KMEP Holt Release Site at 3351 South Whiskey Slough Road west of Holt and <br /> southeast of Trapper Slough (Site). <br /> KMEP owns and operates an underground pipeline connecting Stockton to the San Francisco <br /> Bay Area In February 1986, KMEP had a release from the pipeline about seven miles west of <br /> Stockton near Nott. KMEP conducted several site investigations and remedial activities at the <br /> Site following the release. These activities included routine groundwater monitoring, bailing of <br /> free product, operation of a groundwater extraction and treatment system (GWETS), and <br /> operation of a soil vapor extraction and treatment system (SVETS). In 2004, KMEP shut down <br /> the GWETS and SVETS in order to conduct a bioremediation pilot study. In 2005, Regional <br /> Wafer Board approved removal of the aboveground portions of the remediation systems. In <br /> 2005 and 2006, KMEP implemented phytoremediation and planted about 240 trees at the <br /> Site. KMEP is using phytoremediation to remove soil contamination that is within the peat <br /> layer. <br /> The Pilot Study Report summaries the three-year bioremediation study that began in 2004. <br /> The objective of the pilot study was to demonstrate that the naturally occurring processes are <br /> sufficient to continue to decrease petroleum hydrocarbon concentrations. Benzene and total <br /> petroleum hydrocarbon (TPH) concentrations in monitoring wells show stable to slightly <br /> declining trends, except wells N-16 and N-17. N-17 is a former extraction well, and N-16 is <br /> Califortrio Ftrvironnientrrt ProtectiorrAgenc, <br /> ��h'rcp6'/ed i'aytr <br />