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MONITORING AND REPORTING PROGRAM -10- FORWARD INCORPORATED WASTE MANAGEMENT FACILITY CLASS II LANDFILLS CLASS III LANDFILLS CLASS II SURFACE IMPOUNDMENT CLASS II LAND TREATMENT UNIT SAN JOAQUIN COUNTY Vadose Zone Water Quality Protection Standards After four quarters of sampling data have been obtained for the background lysimeter VDH-18, background values for vadose zone indicator parameters will be calculated. Upon acceptance and/or revision by the Board, these background values will be used as Water Quality Protection Standards. If subsequent sampling of background lysimeters indicate significant soil -pore liquid quality changes due to either seasonal fluctuations or other reasons unrelated to waste management activities at the site, .the Discharger may request modification of these water quality protection standards. SHREDDER WASTE MONITORING Monitoring requirements for shredder waste accepted at Forward Inc. are as follows: Parameter Report in Sampling Units of Frequency PCBs mg/kg Every 1,000 tons* Location of shredder waste disposal -- Quarterly Amount of shredder waste accepted tons Quarterly Designated level parameters mg/1 Every 1,000 tons, as necessary BTX&E mg/l or ug/l Every 1,000 tons *Or more frequently as required by the Department of Health Services Testing for PCBs shall be conducted using composite samples collected at the shredder facility. The samples shall be analyzed using EPA Method 8080. BTX&E shall be measured using EPA Method 602. When it is necessary to determine if a shredder waste is a 'designated waste', run a Waste Extraction Test. The shredder waste is 'designated' if it exceeds any of the following maximum concentrations of designated level parameters. Designated Level Maximum Parameter Concentration Cadmium 100 ug/1 Chromium VI 500 ug/l Total Chromium 500 ug/1 Lead 500 ug/l Mercury 20 ug/1 Nickel 134 ug/l Zinc. 200 mg/l Copper 200 mg/l