ARCHIVED REPORTS_1989-2005 - Laserfiche WebLink

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MONITORING AND REPORTING PROGRAM FORWARD INCORPORATED WASTE MANAGEMENT FACILITY CLASS II LANDFILLS CLASS III LANDFILLS CLASS II SURFACE IMPOUNDMENT CLASS II LAND TREATMENT UNIT CLOSURE OF CLASS I LANDFILL SAN JOAQUIN COUNTY -10- EPA Methods 502.1 and 503.1, or 502.2, or Method 524.2 will be used to characterize volatile organics. All peaks will be reported. Unidentified peaks shall be confirmed with Method 524.2. Metals shall be analyzed and reported as totals (except for chromium). The Discharger shall determine at each sampling whether there is a statistically significant increase over water quality protection standards for each parameter and constituent analyzed. Ground Water Quality Protection Standards: New monitoring wells were installed at the Forward waste management facility during the summer of 1987. Once four quarters of sampling data have been obtained for the background wells MW -6, MW -8 and MW -12 background values for the ground water 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" monitoring wells indicates significant water 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. VADOSE ZONE MONITORING The following detection monitoring program shall be implemented at the site to determine compliance with the appropriate vadose zone water quality protection standards. Lysimeters• The following lysimeters will be monitored for appropriate vadose zone indicator parameters at the prescribed frequencies: Lysimeter No. Comments VDH-8 10 feet below sump of Trench 1, WMU A VDH-19 8 feet below sump of eastern most pit of WMU E VDH-20 8 feet below sump of eastern most pit of WMU E