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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> REVISED MONITORING AND REPORTING PROGRAM NO. 93-701 <br /> FOR <br /> GEWEKE LAND DEVELOPMENT AND MARKETING <br /> 16 SOUTH CHEROKEE LANE, LODI <br /> SAN JOAQUIN COUNTY <br /> Order No. 4 of Cleanup and Abatement Order No. 93-701 requires compliance with <br /> Monitoring and Reporting Program No. 93-701. Specific sample station locations are <br /> established under direction of the Board's staff and a description of the stations are included <br /> in this Order. Existing monitoring locations are shown in Figure 1. <br /> Prior to construction, plans and specifications for soil borings, ground water monitoring, <br /> injection, and/or extraction wells, and air/vapor monitoring, injection, and/or extraction <br /> wells/points shall be submitted to Board staff for review and approval. <br /> GROUND WATER MONITORING <br /> The ground water monitoring network, shown in Figure 1, consists of 14 monitoring wells <br /> and an extraction well in Categories 1 and 2. Category 1 wells include EWI, MW6, MW7, <br /> MW10, MWII, MW12, MW13, and MW14 and Category 2 wells include MWI, MW2, <br /> MW3, MW4, MWS, MW8, and MW9. After construction, all new wells will be included in <br /> Category 1 until otherwise specified by the Board. <br /> After inoculation with the bacterial consortia, samples are to be collected daily for the first <br /> week, then twice monthly for the first six months, monthly for the subsequent six months, <br /> and thereafter as follows: <br /> Category 1 Category 2 <br /> Type of Sampling Sampling Analytical <br /> Constiments Units Sample Freauencv Frequency Method <br /> Depth to ground water Feet ---- Quarterly Quarterly ---- <br /> Purgeable Aromatic Organics µg/1 Grab Quarterly Annually EPA Method 602 <br /> Purgeable Halogenated Organics µg/1 Grab Quarterly Annually EPA Method 6010 <br /> (Specify Ethylenedibromide) <br /> TPH as gasoline µg/1 Grab Quarterly Annually LUFT Method GCFID <br /> Lead µg/I Grab Quarterly Annually HPLC <br /> Dissolved Oxygen mg/1 Grab Quarterly Quarterly ---- <br /> Bacterial Composition Genera Grab Quarterly Quarterly Various Methods <br /> Bacterial Numbers cells/] Grab Quarterly Quarterly ? <br /> Total Coliform MPN/100ml Grab Quarterly Quarterly Multi-Tube Fermentation <br /> Pseudomonas aeruginosa cells/l Grab Quarterly Quarterly ? <br /> Other Species <br /> pH ---- Grab Quarterly Quarterly ---- <br /> EC µmhos Grab Quarterly Quarterly ---- <br />