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[ t <br /> "O�C <br /> L E A RW AT E - ,1 :, �_ h <br /> G R O U I', I N C. <br /> 414 11: 36 <br /> Ms. Brooke Birkie October 23, 1995 <br /> Neumiller & Beardslee <br /> P.O. Box 20 <br /> Stockton, California 95201 <br /> Re: Quarterly Monitoring Report, Ekholm Property, Escalon <br /> California <br /> Dear Ms. Birkie, <br /> Enclosed is a copy of the quarterly monitoring report (third quarter 1995) for <br /> the Ekholm Property, 1702 Jackson Street, Escalon. This quarterly monitoring <br /> report is the final report that Clearwater Group, Inc. will submit regarding the <br /> subject location. <br /> In summary, no hydrocarbons were detected in groundwater samples <br /> collected on September 15, 1995. These results are in agreement with past <br /> analyses indicating that hydrocarbons have had no significant--imp ct on <br /> groundwater quality at this site. <br /> As of September 15, the soil vapor extraction (SVE) system was still operating <br /> with all five wells on-line; an estimated 175 pounds of hydrocarbons have <br /> been removed from the subsurface by the SVE system. Most of the <br /> hydrocarbons have been removed from vapor wells VW-2, VW-4, and VW-5; <br /> vapor samples from VW-1 and VW-3 continue to contain either <br /> nondetectable or very low concentrations of hydrocarbons. <br /> Pacific Gas and Electric (PG&E) was instructed to forward all future electrical <br /> bills to Smith Environmental as of October 20, 1995. 1 forwarded the final <br /> PG&E invoice to Ms. Jeanne Homsey for payment. The final invoice for <br /> Clearwater's services will be forwarded to Neumiller & Beardslee later this <br /> week. <br /> Copies of the quarterly monitoring report will be forwarded to Ms. Linda <br /> Turkatte of the San Joaquin County Public Health Services, Environmental <br /> Health Department (PHS/EHD). I have enclosed an extra copy of the <br /> quarterly monitoring report so that you may.forward it to Mrs. Ekholm. <br /> 1123 Atlantic Avenue- Suite 102•Alameda •California • 94501 • (510)337-6730 • Pax(510)523,- 84 <br />