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• <br />2.2.1.2 PROPOSED GROUNDWATER MONITORING NETWORK <br />Expansion of the existing Forward and Austin Road Landfills into a single landfill <br />facility will necessitate changes to the current groundwater monitoring programs at <br />these sites. The monitoring program changes will need to address the new <br />configuration of the expanded site, post -closure monitoring at closed WMU-A at <br />the existing Forward site, and the on-going corrective action program at the Austin <br />Road facility. <br />Table 5 lists the groundwater monitoring wells that have been constructed at the <br />two landfill facilities and indicates how the wells are proposed to be integrated <br />into a single groundwater monitoring well network for the planned expanded <br />Forward Landfill. As depicted on Figure 2, the new monitoring well network will <br />include 45 wells; 12 for post -closure monitoring of WMU-A, 22 additional wells for <br />the Detection Monitoring Program (DMP); and 11 wells to monitor the <br />effectiveness of the• Corrective Action -Program (CAP-) north cif e=existing-Aust <br />Road parcel. <br />Of the 45 wells, 9 wells have not yet been constructed, but are proposed to meet <br />DMP and CAP monitoring requirements. The locations of the proposed CAP <br />wells were selected based on comments presented by the RWQCB in their4ettnr <br />to Forward Inc., dated June 22, 2001. As requested by the RWQCB, the new CAP <br />wells will be constructed to monitor both shallow and deep groundwater zones. <br />The locations for the proposed DMP wells were selected to provide additional <br />spatial coverage for the new landfill expansion. The design for all new monitoring <br />wells will be detailed in a work plan that will be prepared under the supervision,of <br />a certified (geologist or civil) engineer. Similarly, all well construction work will be <br />performed under the direction of a certified (geologist or civil) engineer. <br />As indicated in Table 5, several monitoring wells will also need to be abandoned <br />to accommodate the expanding landfill footprint. Elimination of these wells, <br />however, should not affect the early detection capability of the DMP network. All <br />well abandonment work will described first in a work plan that will be prepared <br />under the supervision of certified (geologist or civil) engineer who will also direct <br />all field activities. <br />Forward Landfill PCPCMP 2-3 <br />L:\Allied\2000.193\Reports\FinaIPCPCMP:FL-sec2:8/22/01 BRYAN A. STIRRAT S ASSOCIATES <br />