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C <br />GeoSyntec Consultants <br />2.2 Current Monitoring and Control Systems <br />Title 27, CCR §21790(b)(4) a location map of the current monitoring and control <br />systems including: leachate control and drainage and erosion control systems as <br />required...; landfill gas monitoring and control systems as required...; <br />The location map is shown on Figure 2-3. The current environmental monitoring <br />plan for the Forward Landfill is summarized on Table 2-2. This table outlines the <br />monitoring activities performed by Forward and the schedule for each activity. The <br />landfill currently operates under Monitoring and Reporting Program Order No. 97-141, <br />issued by the RWQCB on 20 June 1997. Kleinfelder, Inc. of Sacramento, CA performs <br />the groundwater, vadose zone, and landfill gas monitoring activities. Forward is <br />responsible for all leachate monitoring activities. <br />2.2.1 Groundwater and Vadose Zone Monitoring System <br />Forward's groundwater monitoring program has been in operation since 1987. <br />There are currently 14 active monitoring wells or well pairs at the site. These wells are <br />MW -1, 1B, 2A, 2B, 3, 3B, 10, 13, 13B, 14, 14B, 15, 16, 17, 18, 19, 20, 21, and 22. The <br />well locations are shown on Figure 2-3. Some of the wells monitor more than one <br />WMU or area. The groundwater and vadose zone monitoring programs and sampling <br />frequencies are listed on Table 2-3. A summary of the construction details for each of <br />the currently active monitoring wells is provided on Table 2-4. <br />Lysimeters have been installed beneath each permanent sump at the landfill. The <br />currently active vadose zone monitoring system consists of the following eight <br />lysimeters below WMUs A, E, F, and D-93: LY -A, LY-ElB, LY-E2B, LY-E2A, <br />LY -1F, LY-D93A, LY-D93B, and LY -G1 [Kleinfelder, 1999]. A background <br />lysimeter is monitored in the south half of the site as well. The locations of the <br />currently sampled lysimeters are shown on Figure 2-3. <br />Fluid samples are analyzed for the constituents listed in Table 2-5. The results of <br />the groundwater and vadose zone analyses are sent to the appropriate agencies after <br />each quarterly sampling period. <br />I:WLLIED\FORWARD\CLOSUREPLAN\REPORT 2-2 99.11.30 <br />