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California 14gional Water Quality Control Board <br /> Central Valley Region <br /> Peter M.Rooney Sacramento Main Office Ed J.Schnabel <br /> Secrelary fir Intemet Address: httpJ/www.swrcb.ca.gov/—rwgcb5ihome.huni Chair <br /> 3443 Routier Road,Suite A.Sacramento.Califomia 95827-3003 <br /> Protection Phone(916)255-3000-FAX(916)55-3015 <br /> 15 October 1998 <br /> Ms. Jill Jefferson <br /> Kinder Morgan Energy Partners <br /> 1100 Town and Country Road <br /> Orange, CA 92868 <br /> CONDITIONAL APPROVAL OF WORK PLAN, KINDER MORGAN ENERGY PARTNERS, <br /> HOLT RELEASE SITE, SAN JOAQUIN COUNTY <br /> Thank you for submitting the 9 October 1998 Work Plan for Further Investigation and Additional <br /> Remedial Activities at the pipeline release site in Holt. The work plan is approved with the following <br /> conditions: <br /> 1. In addition to the proposed analyses, all soil, groundwater, and surface water samples shall also be <br /> analyzed for total petroleum hydrocarbons (TPH) as diesel. <br /> 2. The vertical extent of groundwater contamination shall be defined through at least two borings, one <br /> on either side of Cook Road. The borings shall be logged, and grab groundwater samples collected <br /> from the next deeper water bearing zone below that with known contamination. The samples shall <br /> be analyzed for TPH as diesel, TPH as gasoline,benzene, toluene, ethylbenzene,xylenes, and <br /> MTBE. <br /> 3. Because well M-10 contains highly elevated levels of xylenes, soil gas sampling should extend <br /> further east of M-10 than proposed. <br /> 4. The final location of new monitoring well N-20 shall be discussed with me before you begin drilling <br /> the well. <br /> 5. A report of results for this work shall be submitted by 30 January 1999. <br /> Please contact me when you have scheduled the exact dates for field work. I can be reached by <br /> telephone at (916) 255-3080 or by e-mail at wyelswC rb5s.swrcb.ca.gov. <br /> l <br /> WENDY WYELS <br /> Site.Cleanup Unit <br /> cc: Mr. Mike Infurna, San Joaquin County Environmental Health Department, Stockton <br /> Scott Seyfried, Levine-Fricke-Recon, Roseville <br /> California Environmental Protection Agency <br /> ��ReLycled Paper <br />