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GENERAL44431
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Last modified
8/24/2016 8:13:14 PM
Creation date
11/23/2007 1:01:21 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980001
IBM Index Class Name
General Documents
Doc Date
1/14/1987
Doc Name
PROPOSED DECISION & FINDINGS OF COMPLIANCE FOR RN1
Permit Index Doc Type
FINDINGS
Media Type
D
Archive
No
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<br />List of Stipulations <br />Stipulations to the Edna Mine permit are as follows: <br />Stipulation No. 1: <br /> <br />THE PERMITTEE MUST SUBMIT TO MLRD THE DESIGNS FOR THE MOFFAT AREA SEDIMENT <br />PONDS AT LEAST SIX MONTHS PRIOR TO CONSTRUCTION, AND RECEIVE APPROVAL FOR THE <br />PROPOSED DESIGN BEFORE COMMENCING CONSTRUCTION OF THE PONDS OR MINING IN THE <br />MOFFAT AREA. THESE DESIGNS WILL REFLECT CURRENT REGULATORY DESIGN CP,ITERIA <br />AND APPROVAL WILL BE CONTINGENT ON INFORMATION DEMONSTRATING THAT THE PONDS <br />OUTFLOW WILL MEET EFFLUENT LIMITATIONS. <br />Stipulation No, la: <br />THE PERMITTEE IS DIRECTED TO PREPARE AND SUBMIT, FOR APPROVAL BY THE DIVISION, <br />GEOTECHNICAL AND STABILITY ANALYSES OF THE PROPOSED MOFFAT AREA SEDIMENT <br />PONDS. THESE ANALYSES SHOULD INCLUDE CONSIDERATION OF BOTH BEDROCK (BEDDING <br />PLANE AND JOINTING) AND SURFICIAL (ROTATIONAL) MATEP.IAL FAILURE SCENAR105, <br />EFFECTS OF GROUND WATER AND PONDED SURFACE WATER UPON POND SLOPE STABILITY, <br />THE POTENTIAL FOR CUT SLOPE FAILURES ABOVE THE EXCAVATED PONDS, AND THE <br />STABIL]TY DF THE FINAL RECLAIMED CONFIGURATION (STATIC SLOPE SAFETY FACTOP,S Or' <br />1.3 MUST BE ATTAINED FOR RECLAIMED CONFIGURATIONS). P,EPRESENTATIVE "WORST <br />CASE" ANALYSES ARE ACCEPTABLE IF GEOTECHNICAL ANALYSES SHOW THAT THE POND <br />SITUATIONS PURPORTED TO BE REPRESENTED ARE ANALOGOUS. THE RESULTS OF THESE <br />ANALYSES MUST BE APPROVED BY THE DIVISION PRIOR TO THE COMMENCEMENT OF <br />CONSTRUCTION OF ANY OF THE MOFFAT AREA PONDS. <br />Stipulation No. lb: <br />THE APPLICANT MUST CONSTRUCT DIVERSION DITCH 1 <br />THAT FLOW FROM THE DITCH DOES NOT OUTLET INTO <br />PROVIDE EROSION CONTROL AT THE DITCH OUTLET TO <br />EROSION. <br />Stipulation No. lc: <br />IN THE MOFFAT AREA TU ENSURE <br />POND 8. THE APPLICANT MUST ALSO <br />PROTECT THE RECEIVING DRAW FROM <br />THE APPLICANT SHALL SUBMIT DESIGN DATA FOR EACH OF THE MOFFAT AREA <br />SEDIMENTATION POND INFLOW DITCHES. THIS INFORMATION SHALL INCLUDE EVIDENCE <br />THAT DITCH SLOPES WILL PROVIDE POSITIVE DRAINAGE TO THE PONDS WITH ACCEPTABLE <br />VELOCITIES. THE INFORMATION SHOULD ALSO DEMONSTRATE THAT BERMS TO BE <br />CONSTRUCTED WILL NOT SIGNIFICANTLY IMPOUND WATER. <br />-~- <br />
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