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KINDER /MORGAN <br /> ENERGY PARTNERS,L.P. r . <br /> r ATI(p: 4 <br /> SFPP,L.P. ENV 29.08.02 (2130.RE8102.00.747.000) <br /> Operating Partnership <br /> August 4, 1999 <br /> Mr. William J. Marshall <br /> Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road <br /> Sacramento,California 95827-3098 <br /> Subject: Response to 16 July 1999 Letter-Holt Petroleum Release Site <br /> Dear Mr. Marshall: <br /> This letter responds to comments regarding the Kinder Morgan Energy Partners (KMEP) Holt <br /> Release Site included in a letter from the Central Valley Regional Water Quality Control Board <br /> (RWQCB)to KMEP dated 16 July 1999. <br /> Comment#1 <br /> KMEP understands that NPDES effluent violations are a serious matter. In order to minimize <br /> potential upsets that could lead to effluent violations, KMEP conducts inspections and maintenance <br /> and monitoring activities of the groundwater treatment system at the Holt site on a daily basis in <br /> addition to the monthly monitoring specified in the NPDES permit. With respect to MTBE, influent <br /> and effluent samples were analyzed for MTBE during February and March 1999. However, due to an j <br /> oversight error in filling out the chain of custody form, the laboratory did not report the resulting <br /> concentrations of MTBE for the NPDES report. These MTBE data are summarized in the following <br /> table along with data for April,May, and June 1999. <br /> FDateConcentration of MTBE(µg/L) <br /> Influent Effluent <br /> <20 <0.50 <br /> 2/23/99 <20 <0.5 <br /> 3/10/99 <20 <0.5 <br /> 4/28/99 <20 <0.5 <br /> 5/18/99 <25 <0.5 <br /> 6/15/99 <20 <0.5 Ll <br />