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December 23, 1999 <br />• 4.fl PROCESS 1VION[TORING <br />Pcrge 20 <br />The solution mining process will be monitored according to the schedule and criteria <br />presented in this section. All process monitoring data will be included in monitoring reports that <br />will be submitted monthly to the BLM (described in Section 6.0). Details of the process <br />monitoring schedule and criteria are presented in Table 6. <br />Table 6. Process Monitoring Schedule <br />Parameter Monitoring Recording Frequency <br />Production Well <br />Injection Pressure Automatic 10 minutes <br />Injection Temperature Automatic 10 minutes <br />Injection Specific Gravity Automatic 10 minutes <br />Injection Flow Rate Automatic 10 minutes <br />Discharge Pressure Automatic 10 minutes <br />Discharge Temperature Automatic 10 minutes <br />Discharge Specific Gravity Automatic 10 minutes <br />Discharge Flow Rate Automatic 10 minutes <br />• <br />Nitrogen Consumption Manual Daily <br />Nitrogen Pressure Automatic 10 minutes <br />WQ2 Parameters (see Table 3) Manual Monthly/Quarterly* <br />Carbon Dioxide Manual Monthly <br />Methane Manual Monthly <br />BTEX Manual Quarterly <br />DOC Manual Monthly <br />Oil and Grease Manual Monthly <br />TCLP Parameters and pH** Manual As needed*** <br />* Monthly for the first 6 months following startup of commercial operations and quarterly thereafter. <br />** TCLP parameters contain those listed in 40 CFR Part 262 Subpart C and will be analyzed for total <br />concentrations. <br />*** The frequency of TCLP parameter analysis and pH measurement will be on an as-needed basis (under <br />40 CFR 262.1 I) after the initial review is performed during initial operations. <br />4.1 Solution Mining Wells <br />Solution mining wells will be monitored for pressure, temperature, flow rate, and density <br />of inflow and outflow at 10-minute intervals. The data will be recorded at 10-minute intervals and <br />• reported to a central control system. <br />Agapito Associates, Inc. <br />