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). H. KLEINFELDER & ASSOCI•ATES <br /> GEOTECHNICAL CONSULTANTS • MATERIALS TESTING <br /> LAND & WATER RESOURCES <br /> 2815 EAST MYRTLE STREET <br /> STOCKTON,U 95205-4794 <br /> (209)948-7345 <br /> File No. S-2515-1 <br /> December 19, 1985 <br /> Black & Veatch <br /> Post Office Box 8405 <br /> Kansas City, MO 64114 <br /> Attention: Mr. Bruce Long <br /> Subject: STORMWATER RUNOFF SAMPLtING PROGRAM <br /> MARLEY COOLING TOWER COMPANY <br /> STOCKTON, CALIFORNIA <br /> Gentlemen: <br /> As requested in your letter dated September 30, 1985, a representative of <br /> our firm sampled stormwater runoff in the north yard of the Marley Cooling Tower <br /> Company's facility in Stockton, California, on four occasions between October 6, <br /> to November 24, 1985. A total of 38 samples were collected during this period <br /> and submitted to Canonie Engineers Laboratory for analytical testing. Their <br /> reports for those analyses requested in Item 3 of your referenced letter are <br /> attached. In addition to water samples collected from the holding pond and <br /> sump, samples were also obtained in roughly the four corners of the north yard <br /> to help delineate those areas with high concentrations of chrome and copper in <br /> the runoff. A map showing the sample locations is attached. Presented below is <br /> a brief report on each sampling. <br /> Sunday Morning, October 6, 1985 <br /> This was the first rain after our original discussion. Rain began at <br /> approximately 3 A.M. and remained a drizzle until approximately 5:30 A.M. when <br /> sufficient rain occurred to cause appreciable runoff into the gutters at the <br /> Writer's home, located approximately 10 miles north of the :Marley facility. <br /> When the Writer arrived at the site at approximately 6 A.M., it was apparent <br /> that the site itself had received very little rain in comparison to north <br /> Stockton. Only two samples were obtained at locations 1 and 2, each containing <br /> significant sediment. <br /> OTHER OFFICES: <br /> Walnut Creek • San Ramon • Sacramento Fresno fauiield • Merced Rohnett Park 0Los Angeles • Rena 0Las Vegas • S[.Cewge.Utah • Denver <br />