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MONITORING AND REPORTING PROGRAM -2- <br /> LIBBEY-OWENS-FORD COMPANY <br /> LATHROP PLANT NO. 10 <br /> SAN JOAQUIN COUNTY <br /> Sampling <br /> Constituents Units Type of Sample Frequency <br /> Tin mg/l Grab Monthly <br /> Fluoride mg/l Grab Daily <br /> Lead mg/l Grab Monthly <br /> 1 Trichlorotrifluoroethane Extraction Method <br /> 2 May also be sampled at discharge point of package sanitary treatment plant <br /> 3 When constituent is in use <br /> 4 When fluoride process is in use <br /> If the discharge is intermittent rather than continuous, then on the first day <br /> of each intermittent discharge, the Discharger shall monitor and record data for <br /> all of the constituents listed above, after which the frequencies of analysis <br /> given in the schedule shall apply for the duration of each such intermittent <br /> discharge. In no event shall the Discharger be required to monitor and record <br /> data more often than twice the frequencies listed in the schedule. <br /> Land Disposal Discharge <br /> Sampling <br /> Constituents Units Type of Sample Frequency <br /> 20°C BODS mg/l 24 hr. Composite Weekly <br /> Total Suspended mg/l 24 hr. Composite Weekly <br /> Solids <br /> Total Dissolved mg/l Grab Weekly <br /> Solids <br /> Oil and Greasel mg/l 24 hr. Composite Weekly <br /> Flow mgd Continuous Daily <br /> Selenium mg/l Grab Monthly <br /> Chromium mg/l Grab Monthly <br /> Nickell mg/l Grab Monthly <br />