Laserfiche WebLink
Leachate quantityand quality will be monitored at least quarterly or whenever <br />groundwater samples are collected. The volume of leachate conveyed and the <br />depth of the leachate over the liner shall be measured and recorded at least <br />quarterly. Representative samples of leachate and any fluid recovered in the leak <br />detection system/vadose zone sumps will be tested for the same chemical <br />parameters as required by the groundwater monitoring program. Reports will be <br />filed with the LEA, CIWMB and the RWQCB within 90 days of sampling. <br />4.6 LANDFILL GAS MONITORING AND CONTROL SYSTEM MAINTENANCE <br />Landfill gas extraction system monitoring will include collection system, flare and <br />extraction well monitoring in accordance with 27 CCR, Sections'20921, 20923, <br />20925, 20931, 20932 and 20933. The landfill gas extraction system monitoring <br />will be conducted monthly throughout the post -closure period, unless <br />authorization to cease monitoring is granted by the San Jtaaquin Valley Air <br />Pollution Control District (SJVAPCD), LEA and CIWMB. Landfill gas monitoring <br />results will be reported to the SJVAPCD, LEA and CIWMB wit'hin"90 days of <br />4Ps sampling. <br />Perimeter probe monitoring for total organics as methane..will be..performed <br />quarterly at the proposed gas monitoring wells. In the event that perimeter <br />monitoring shows that methane gas is being produced at`levels'above'the LE -L or <br />greater than 5 percent by volume in air, the existing LFGES will be evaluated and <br />modified if necessary. <br />During surface integrity testing the gas monitoring well network will be visually <br />inspected for damage and/or malfunction. 1n addition, the gas monitoring probes <br />will be periodically inspected and maintained in accordance with the <br />manufacturers specifications. If damage or malfunctioning is detected during <br />visual inspection and/or routine maintenance, the probe and/or well will be <br />immediately repaired. These procedures will assure proper functioning of the <br />landfill gas well network through the post -closure maintenance period. <br />4.7 GROUNDWATER MONITORING AND CONTROL SYSTEM MAINTENANCE <br />Groundwater monitoring will be conducted on a quarterly basis for parameters as <br />required by the regulations in force at the time of closure. <br />Forward Landfill PCPCMP 4-3 <br />L:\Allied\2000.193\Reports\FinaiPCPCMP:FL-sec4: 8/20/01 ORYAN A. STIRRAT S ASSOCIATE£ <br />