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i CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION REVISED MONITORING AND REPORTING PROGRAM NO 93-701 IFOR GEWEKE LAND DEVELOPMENT AND MARKETING 16 SOUTH CHEROKEE LANE, LODI SAN JOAQUIN COUNTY IGROUND WATER AND GAS/VAPOR SAMPLING The ground water monitoring network, shown in Figure 1, consists of 14 monitoring wells, MW1 through MW 14, and an extraction well, EW 1 The soil gas/vapor monitoring network consists of the ground water monitoring network listed Iabove and seven vapor wells, VW1 through VW7, as shown in Figure 1 The soil and ground water insitu bioremediation system includes monitoring wells MW1, MW3, ' MW4, MW5, MW8, MW9, MW11, MW14, and EW1 and vapor wells %/Wl and VW3 through VW7, which were inoculated with bacterial consortia on 16 August 1994 New wells and monitoring points shall be included in the monitoring program Where applicable, cone penetrometer technology may be used for collection of soil, -vapor, and ground water samples The Board shall be notified five days in advance of drilling ' After several rounds of monitoring results have been reviewed, the sampling schedule may be modified, at the discretion of the Board Table 1: Ground Water Monitoring for Petroleurn Hydrocarbons ' The grcund water monitoring program for petroleum hydrocarbons shall consist of the following ' Type of Sampling Sample analvttcal Parameters Units Sample Frees Locations Method Depth to ground water Feet Quarterly all Wells ' Purgeable Aromatic Organics µg/1 Grab Quarterly All Wells EPA Method 8020* Purgeable Halogenated Organics A g/1 Grab Quarterly All Wells, Excepr EPA Method 8010* MW6, itiTw10 %TWil Ethvlenedibrormde Ag/l Grab Quarterly MW14 EPA Method 8010 TPH as gasoline A g/l Grab Quarterly All Wells LUFr Method GCFID all constituents and peaks in ground water samples are to be reported I