2010-05-03_REVISION - M1979205 (6)

Home Browse Search

within the permit area using the same timeframe required by the permit, license, notice, Act, Rule or Regulation governing the reporting of the spill to the appropriate agency. Notice of a reportable spill shall be faxed to: Minerals Program Supervisor, Division of Reclamation, Mining, and Safety, FAX (303) 832-8106. The FAX shall include a call-back number of a responsible company official for the DRMS staff to use as a contact." In order to address concerns with the City of Rifle about pit flooding, a revision to the SPCC Plan has been made to prevent contamination of surface water with petroleum products in the event of flooding the active mining area, the rivers surface elevation will be monitored through staff gages that are placed at pre-determined locations (the low points where water would enter the two mining pits). During high flows, Gauge #1 is used to monitor Mining Area #1 and Gauge #2 is used to monitor Mining Area #2. Monitoring will commence when the elevation of the river gets to within 2.5 feet of the elevation that would flood the mining area. When the river elevation reaches 1.5 feet below the elevation that would flood the mining area, all the equipment will be removed from the pit and taken to higher ground. The continuous monitoring level and evacuation level for each pit are detailed in the table below. Monitoring will be achieved using staff gages near each pit. These gages are shown on Map C-2. Mining Area Elevation of Mining Area Flooding Evacuation Level Monitoring Level 1 5308.0 5306.5 5305.5 2 5310.0 5308.5 5307.5 The locations of the staff gages are shown on Map C-2 of the Mine Plan as well as the SPCC Flood Monitoring Map. Site personnel will be trained in the procedures for monitoring the gages. The Monitoring Level on the gages will be marked in a dashed red line. The Evacuation Level will be marked in a solid red line. Text for both levels will also be written next to the respective lines. Scott Pit March 10 D-8