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December 23, 1999 • • Pnge 28 <br />' 5.9.1 Water Quniity Dnla <br />Water quality data will be compiled as each data point is acquired. The environmental <br />' coordinator will review these data at each update. Once the ambient data has been assembled, <br />1 numeric protection levels and `practice-based' permit conditions will be established by the BLM <br />with respect to protection of the groundwater. In the event that corrective action is indicated, the <br />' following sequence of procedures will be initiated. <br />1. The sample(s) will be submitted for re-analysis to all reporting laboratories. <br />' 2. Samples will be recollected and submitted for analysis. <br />3. If the preceding two corrective action items (Nos. 1 and 2) fail to yield reproducible <br />' results, the data will be invalidated. <br />In the event that a sample was lost or destroyed, Item 2 of the corrective action sequence <br />' would be initiated. <br />This corrective action sequence will be followed for all water quality parameters. <br />' Detection of elevated BTEX or oil and grease concentrations in the process stream (Section 5.1) <br />that exceed the baseline concentrations (established during the 5-quarter baseline monitoring <br />' period) by 1000 mg/I (0.1%) would signal the potential for destructive distillation of oil shale. If <br />data excursions of this magnitude or greater are detected, the cavity temperature will be reduced to <br />' 300°F until it is evident that distillation of oil shale is no longer occurring. <br />5.9.2 Clrnnge in KyArostatic Pressure at the Dissolution Surface <br />' The hydrostatic pressure at the Dissolution Surface will be reviewed as data are acquired. <br />Once the ambient data have been assembled, numeric protection levels and `practice-based' permit <br />' conditions will be established by the BLM and American Soda. Significant deviations from the <br />established baseline, that cannot be attributed to ambient or external conditions, will be cause to <br />' initiate corrective action procedures. The following sequence of corrective action procedures will <br />be initiated. <br />' 1. Notify the BLM and the EPA, within the next BLM working day, that the <br />corrective action sequence of procedures for change in hydrostatic pressure.at the <br />' Dissolution Surface has been implemented. <br />2. Evaluate the integrity of the pressure transducer. <br />3. Evaluate other Dissolution Surface hydrostatic monitoring systems. <br />4. Evaluate the mass balance of the production wells in the area. <br />1 <br />1 Agapito Associates, Inc. <br />