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MONITORING AND REPORTING PROGRAM NO. R5-2014-0006 3 FORWARD INC.AND REPUBLIC SERVICES INC. FORWARD CLASS II LANDFILL SAN JOAQUIN COUNTY Corrective and AMW-13B, -18B, -19BR, -21, -22, -24R, -25, Evaluation -26R, -28, -29, -30, -31, & -32 Domestic 7898-A, 8106-A Groundwater samples shall be collected quarterly from all wells listed in the above table (i.,e background wells, detection monitoring wells, evaluation monitoring wells, corrective action monitoring wells, domestic wells) and any additional wells added as part of the approved groundwater monitoring network. The collected samples shall be analyzed for the parameters and constituents listed in Table I in accordance with the specified methods and frequencies. In addition to the approved groundwater monitoring system, Cleanup and Abatement Order R5-2008-0714 (CAO) also mandates the evaluation of the extent of groundwater impacted by the release from the Austin Road unit. Additional wells may be installed or wells may be abandoned as the evaluation program progresses under the CAO or subsequent enforcement action. Any additional wells installed as part of an evaluation into the extent of impacted groundwater, or any private wells identified as being threatened by the release from the Austin Road Unit, shall be sampled quarterly for the parameters and constituents listed in Table I until they are either abandoned with concurrence of Water Board staff or they are incorporated into a regular monitoring program as part of a revised MRP. The Discharger shall collect, preserve, and transport groundwater samples in accordance with the approved Sample Collection and Analysis Plan. Once per quarter, the Discharger shall measure the groundwater elevation in each well, determine groundwater flow direction, and estimate groundwater flow rates (vertically and horizontally) in the uppermost aquifer and in any zones of perched water and in any additional portions of the zone of saturation monitored. Samples collected for the COC monitoring specified in Table I shall be collected and analyzed in accordance with the methods listed in Table VIII every five years. Five-year CDCs shall be monitored again in 2018. The results shall be reported in the Annual Monitoring Report for the year in which the samples were collected.