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Table 27. Hydrologic Monitoring Requirements —New Elk Mine <br />Site Water Level Field Laboratory NPDES <br />or Flow Measurements Analysis List <br />PRS -1 S S A <br />PRS -1 a* * Q Q Q <br />PRS -4 (aka NE 080) S S A <br />PRS -4a* * Q Q Q <br />TH -201 <br />Q <br />NEW -3 S <br />TH -202 <br />Q <br />A <br />TH -203 <br />Q <br />NE -6 -1 Oa Q Q <br />PAW -1 <br />S <br />S A <br />PAW -la ** <br />Q <br />Q Q <br />PAW -2 <br />S <br />S A <br />PAW -8 <br />S <br />S A <br />PAW -9 <br />S <br />S A <br />PAW -9a ** <br />Q <br />Q Q <br />NEW -2 S A <br />A <br />NEW -3 S <br />NEW -4 S A <br />A <br />NE -1 -10 Q Q <br />Q <br />NE -6 -1 Oa Q Q <br />Q <br />NE-6-1 Ob Q Q <br />Q <br />NM -20 Q Q <br />Q <br />NM -21 Q Q <br />Q <br />NM 22 Q Q <br />Q <br />NM 23 Q Q <br />Q <br />SF -2 Q Q <br />Q <br />NPDES Stations <br />NE 001 (Mine + <br />+ <br />water) <br />NE 004 (Pond 4) + <br />+ <br />NE 007 (Pond 7) + <br />+ <br />NE 008 (Pond 8) + <br />+ <br />NE 080 (PRS -4) + <br />+ <br />Key: S= Semi - annually (second and fourth quarters); A= Annually (fourth quarter); <br />Q= Quarterly (quarterly refuse pile inspections) <br />*See Table 28 for required laboratory analysis. <br />* * Monitor quarterly for one year, then monitoring frequency will change to 'S' for Water & <br />Flow, and'A' for Laboratory Analysis. <br />+See NPDES Permit for frequency and required analysis. <br />Note: If the coal shipping/processing facilities become active, the Division will be <br />notified in writing and the frequency of monitoring reviewed and increased, if <br />operational parameters warrant. <br />MR -116 Page 2.05 -90b Revised 5/2012 <br />