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TABLE 1 <br /> PROPOSED REVISED GROUNDWATER MONITORING SAMPLING SCHEDULE <br /> MARLEY COOLING TOWER COMPANY <br /> STOCKTON, CALIFORNIA <br /> WELL INFORMATION SAMPLING CRITERIA <br /> WELL ID ALT.ID ZONE WELL TYPE CURRENT RECOMMENDED FREQUENCY RATIONALE FOR CHANGING MONITORING <br /> MW-462 Deep Monitor Annual Every 2 years Chromium Concentrations Below 0.01 mg/I for past 10 years <br /> MW-463 Deep Monitor Annual Every 2 years Chromium Concentrations Below 0.01 mg/I for past 10 years <br /> MW-464 _ Deep Monitor Annual Every 2 years Chromium Concentrations Below 0.01 mgll for past 10 years <br /> MW-466 Deep Monitor Annual Every 2 years Chromium Concentrations Below 0.01 mgll for past 10 years <br /> MW466 Deep Monitor Annual Every 2 years Chromium Concentrations Below 0.01 mgll for past 10 years <br /> MW-467 Deep Monitor Annual Every 2 years Chromium Concentrations Below 0.01 mg/1 for past 10 years <br /> MW-468 Deep Monitor Annual Every 2 years Chromium Concentrations Below 0.01 mg/1 for past 10 years • <br /> D-1 MW-363 Deep Reclamation Semi-annual Semi-annual <br /> D-2 MW461 Deep Reclamation Semi-annual Semi-annual <br /> 5116D Domestic Quarterly I Quarterly -- <br /> Col. No. 1 Domestic Quarterly Quarterly <br /> Col. No.2 Domestic Quarterly Quarterly <br /> Col.No.3 Domestic Quarterly Quarterly <br /> Cuneo Domestic Quarterly Quarterly <br /> -MSD Domestic Quarterly Quarterly <br /> Solari Domestic Quarterly Quarterly• - -- <br /> 51161 Irrigation Quarterly Every 2 years Chromium Concentrations Below 0.01 mg/I for past 6 years _ <br /> Col.No.1 Irrigation Quarterly Every 2 years Chromium Concentrations Below 0.01 mgll for past 3 years <br /> Col.No.2 Irrigation Quarterly Every 2 years Chromium Concentrations Below 0.01 mgll for past 4 years <br /> Col.No.3 Irrigation Quarterly Every 2 years Chromium Concentrations Below 0.01 mg/1 for past 5 years <br /> MSI Irrigation Quarterly Every 2 years Chromium Concentrations Below 0.01 mgll for past 4 years <br /> Solari Irrigation quarterly Every 2 years Chromium Concentrations at or Below 0.05 mgll for past 5 years <br /> CWS-20 Production Quarterly Every 2 years Chromium Concentrations Below 0.01 mgll for past 8 years <br /> CWS-35 Production Quarterly Every 2 years Chromium Concentrations Below 0.01 mgll for past 10 years <br /> CWS-52 Production Quarterly Every 2 years Chromium Concentrations Below 0.01 mg/1 for past 10 years <br /> CWS-62 Production Quarterly Every 2 years Chromium Concentrations Below 0.01 mg/I for past 9 years • <br /> NOTE: Items In bold print Indicates a change in monitoring schedule <br /> 11/29/1999 <br /> NewMon <br /> 4 of 4 11:34 AM <br /> Criteria <br />