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DSS Company <br /> 2648 W.Blewett Rd <br /> 1 Tracy,CA.95376 <br /> (209 830-5130 <br /> f <br /> 9 <br /> 9 <br /> i <br /> 1 <br /> January 18, 2002 <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> .3443 Routier Road, Suite A <br /> Sacramento, CA 95827-3003 <br /> G <br /> Re: Quarterly Pond and Effluent Monitoring Report <br /> DDS COMPANY <br /> Vernalis Quarry <br /> San Joaquin County <br /> Order No. 99-034 <br /> POND MONITORING <br /> Freeboard 7131/01 24' <br /> 8/31/01 22' <br /> 9130/01 20' <br /> 12/31/01 16' <br /> i Ponds performing as designed. No maintenance needed. <br /> i EFFLUENT MONITORING <br /> On 12/18/01 a sample was collected by Louis Gunsch an employee of J L ANALYTICAL <br /> SERVICES, Inc,at 2:45 PM for analysis. <br /> Results of analysis <br /> Dissolved Oxygen, SM 4500-0, G 13 mg/1 <br /> pH, SM 4500 HB 8.4 pH Units <br /> i <br /> 1 <br /> Specific Conductivity @ 25 C, SM 25106 580 umho/cm* <br /> • AT25 DEGREES C <br /> 1 <br /> I <br />