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d . <br /> o <br /> It is not likely that the addition of <br /> be deleted from the groundwater monitoring program Y �► <br /> . the bacteria consortia would have a negative effect on lead concentrations in groundwater <br /> at the site <br /> The proposed groundwater monitoring program will include quarterly sampling of wells EW- <br /> 1, MW-6, MW-7, MW-8, MW-9, MW-10, MW-11, MW-12, MVV-13 and MW-14 ("Quarterly <br /> Wells") Table 2 lists the proposed groundwater monitonng for petroleum hydrocarbons <br /> TABLE 2 <br /> GROUNDWATER MONITORING FOR PETROLEUM HYDROCARBOINS <br /> Ge,Aeke Land De-,elopment and Marketing <br /> 16 South Cherokee Lane, Lodi, Cahrornia <br /> Units Type of Samplmg Sample Analytical <br /> Parameters Sample f=requency Locations Method <br /> Depth to Groundwater feet ---- Quarterly All %%ells N/A <br /> Purgeable Aromatic µg1L Grab Quarterly Quarterly EPA 602 <br /> Compounds Wells <br /> Purgeable Halogenated /Ig/L Grab Quarterly Quarterlv EPA 601 <br /> Organics Wells <br /> TPH as gasoline ug/L Grab Quarterly Quarterly LUFT <br /> Wells <br /> Total Coliform MPIN/ Grab Quarterly Wk-; Nfulti-Tube <br /> 100 nil MW-14 rermentation <br /> Ew-1 <br /> To monitor biological activity, several field tests «ill be added to the monitonng program, <br /> including dissolved oxygen, pH, EC, bacterial numbers and composition Table 3 lists the <br /> proposed monitoring for biological activity <br /> i <br /> Five wells will be sampled twice per month, these wells , ill be sampled, using field <br /> techniques, for dissolved oxygen, pH and electrical conductivity (EC) These five wells are <br /> representative of the site and should provide more than enough data for monitoring <br /> biological progress <br /> The same five wells (MW-8, MW-11, MW-12, MVV-14 and EW-1) will be sampled on a <br /> quarterly basis for bacterial composition and bacterial numbers Microbiologically, these <br /> wells, sampled on a quarterly basis will provide evidence of the remediation progression <br /> Three wells will be sampled monthly for TPH and BTE&X (MW-12, MW-14 and EW-1) <br /> These wells will provide monthly evidence for the degradation and migration (if any) of <br /> hydrocarbons in groundwater at the site <br /> Omlopal.Mid i Sews+ I., <br /> eEwSi�JRe.•e.�Moenonns Batt 94 3 <br />