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04/08/2003 02: 1s DSS (i ANY 4 209 9420621 No.583 Pas <br /> CALITORNIA,REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> MONITORING ANIS REPORTING PROGRAM NO. 99-034 <br /> FOR <br /> DSS COMPANY r <br /> VERNALIS QUARRY <br /> SAN JOAQUIN COUNTY <br /> POND MONITORING <br /> Freeboard of the settling pond shall be measured and recorded every month and shall be reported to the <br /> Regioaal Board an a quarterly basis- Maintenance schedules and a narrative description of the system <br /> cogdition shall be presented in the monitoring report. <br /> EFFLUENT MONITORING <br /> Pond's water stall be sampled and analyzed quarterly, Grab samples shall be collected at each <br /> P <br /> cornp ar=ent of the and and combined to make a composite sample. A chain of custody shall be <br /> � i l <br /> completed r 15 e collection that indicates the time and date of the sample, and siguatures of <br /> p <br /> designated sampling personnel. The composite sample shall be analyzed immediately after collectiaia <br /> with the following constituents- <br /> Coituszts Units Sampling Frequency <br /> Dissolved Oxygen mg/l Quarterly <br /> 1H pH Unit Quarterly <br /> Spec Cauductivity µmhos/cm Quarterly <br /> (at 25°C) <br /> WATER SUPPLY MONITORING <br /> A sampling station shall be established where a representative sample of the domestic water supply can <br /> be obtained.. The following shall constitute the water supply monitoring program: <br /> t Constituents Units &Mpling Fre uencv <br /> Standard Minerals mg/1 Annually <br /> Specific Conducti-vity �Lm oslcm Aauurslly <br /> (at 25-C) <br /> PH pH unit Annually <br />