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it <br /> DSS Company <br /> 2648 W.Slewett Rd <br /> Tracy,CA.95376 <br /> (209830-5130 <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 /> Re: Quarterly Pond and Effluent Monitoring Report <br /> i DDS COMPANY <br /> Vernalis Quarry <br /> San Joaquin County <br /> Order No. 99-034 <br /> M <br /> I <br /> POND MONITORING <br /> Freeboard 7131101 24' <br /> 8/31/01 22' <br /> 9130101 20' <br /> 12/31/01 16' <br /> Ponds performing as designed. No maintenance needed. <br /> 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 /> I <br /> Dissolved Oxygen, SM 4500-0, G 13 mg/I <br /> pH, SM 4500 HB 8.4 pH Units <br /> Specific Conductivity @ 25 C, SM 2510E 580 umho/cm* <br /> • AT25 DEGREES C <br />