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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> MONITORING AND REPORTING PROGRAM NO. <br /> FOR <br /> DEGROOT AND SONS, A&J FOODS, INC. , AND CHIRON CORPORATION <br /> WASTEWATER DISPOSAL TO LAND <br /> SAN JOAQUIN COUNTY <br /> Specific sample station locations shall be established under direction of the <br /> Board's staff and a description of the stations shall be attached to this Order. <br /> Prior to construction, plans and specifications for ground water monitor wells <br /> shall be submitted to Board staff for review and approval . <br /> EFFLUENT MONITORING <br /> Effluent samples shall be collected just prior to discharge from the pond to the <br /> disposal fields. Effluent samples should be representative of the volume and <br /> nature of the discharge. Samples collected from the outlet structure of ponds <br /> will be considered adequately composited. Time of collection of a grab sample <br /> shall be recorded. The following shall constitute the effluent monitoring <br /> program: <br /> Sampling <br /> Constituents Units Type of Sample Frequency <br /> 20°C BOO, mg/l Grab Bimonthly' <br /> Suspended Matter mg/l Grab Monthly <br /> Settleable Matter ml/l Grab Monthly <br /> Nitrates as N mg/l Grab Monthly <br /> Total Dissolved Solids mg/l Grab Monthly <br /> Specific Conductivity Nmhos/cm Grab Bimonthly' <br /> Standard Minerals mg/l Grab Quarterly <br /> pH pH Units Grab Weekly <br /> Flow' mgd Cumulative Daily <br /> Two times per month. <br /> 2 Effluent flow to disposal fields shall each be measured. Volumes applied to <br /> field in gallons/acre shall also be reported. <br />