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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> MONITORING AND REPORTING PROGRAM NO. 91-056 <br /> FOR <br /> LIBBEY-OWENS-FORD COMPANY <br /> LATHROP PLANT NO. 10 <br /> SAN JOAQUIN COUNTY <br /> EFFLUENT MONITORING <br /> Effluent samples shall be collected downstream from the last connection through <br /> which wastes can be admitted into the outfall . Effluent samples should be <br /> representative of the volume and nature of the discharge. Samples collected from <br /> the outlet structure of ponds will be considered adequately composited. Time of <br /> collection of a grab sample shall be recorded. The following shall constitute <br /> the effluent monitoring program: <br /> Surface Water Discharge - Outfall 001 <br /> Sampling <br /> Constituents Units Type of Sample Frequency <br /> 20°C BODS mg/1 , lbs/day 24 hr. Composite Weekly <br /> Total Suspended mg/1 , lbs/day 24 hr. Composite Weekly <br /> Solids <br /> Total Dissolved mg/l Grab Weekly <br /> Solids <br /> Settleable Matter ml/l Grab Every Two Weeks <br /> Oil and Greasel mg/l , lbs/day 24 hr. Composite Weekly <br /> Standard Minerals mg/1 Grab Annually <br /> pH pH Units Grab Every Two Weeks <br /> Bioassay % Survival Grab Monthly <br /> Total Coliform MPN/100 ml Grab Monthly <br /> Organisms <br /> Phosphorous mg/l , lbs/day 24 hr. Composite Weekly <br /> Flow mgd Continuous Daily <br /> Temperature OF Grab Daily <br /> Selenium mg/1 Grab Monthly <br /> Chromium mg/l Grab Monthly <br /> Nicke13 mg/l Grab Monthly <br /> Cobalt mg/l Grab Monthly <br />