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Two small sumps were constructed in the North Decline reclamation area and one sump was <br /> constructed in the Cameo Borrow Area #1 (CBA-1) to serve to capture and treat runoff from <br /> reclaimed lands. These sumps are adequately sized to contain runoff from a 25-year, 24-hour <br /> storm event. <br /> F. Surface and Groundwater Monitoring <br /> 1. The permittee will conduct monitoring of groundwater in a manner approved by the <br /> Division. The groundwater monitoring plan is detailed in Tab 18 of the permit application. <br /> Piezometers have been installed in various permit area locations to monitor water level <br /> and/or quality in alluvium, refuse fill,the Rollins Sandstone and abandoned sections of the <br /> South Portals Mine. Monitoring locations are shown on 'Roadside and Cameo No.I Mines <br /> Hydrologic Monitoring Map" (Exhibit 56), in Tab 18. The groundwater monitoring plan <br /> is outlined below; for additional detail refer to Tab 18 of the approved permit. (4.05.13(I)) <br /> Rapid Creek and Cottonwood Creek Piezometers <br /> GWMS-01 A, 01 B, 02A, 02B, 03A, and 03B, monitor water levels May and September. <br /> CRDA Piezometers <br /> CRDA-01 through 03, and O1 A; and thirty piezometers (Pz 100-107, 200-206, 300-307, <br /> and 400-406), all on CRDA-1, monitored quarterly for water level. "Critical levels" <br /> defined for 100, 200, 300, and 400 series piezometers. <br /> CRDA-04 through 06 installed on CRDA-2, monitored quarterly for water level. <br /> Unit Train Loadout Piezometers <br /> Quarterly water level monitoring UTL-01,02,03,04; <br /> Annual water quality monitoring UTL-02 and UTL-04 (parameters listed in Permit Table <br /> 18-3) <br /> Roadside South Portal Workings <br /> Well N-1, located at reclaimed North Decline; quarterly water level monitoring. <br /> Rollins Sandstone Wells <br /> Rollins-I (In North Portal Mine) <br /> Rollins-2(At UTL) <br /> Rollins-3 (Near Pond 7, North Decline) <br /> Rollins4 (In South Portal Mine) <br /> Quarterly water levels and Annual water quality analyses (Table 18-3) required for all <br /> Rollins Wells. Monitoring of the in-mine wells (Rollins-2 and Rollins-4) will be <br /> discontinued if access is precluded. <br /> 28 <br />