2011-12-06_REVISION - C1980001 ‎(3)‎

• Permit No: C1980001
• IBM Index Class Name: REVISION
• Doc Date: 12/6/2011
• Doc Name: Proposed Deciision and Findings of Compliance
• From: DRMS
• To: Chevron Mining, Inc
• Type & Sequence: RN6
• Email Name: JHB
• Media Type: D
• Archive: No

ActiOn'-
Approved On - - '-'
Brief Description ' - ' - ' ' • -
MR-50
January 25, 2007
Change of address for a laiidoWhei'
TR-47
February 6, 2007
Reduction in monitoring program
Mit
'
'F'ebtrun6i21, 2007 '
'Chatige of interests inforrnaticin''' .
MA: '
iune 2007 , '
Well abandonment reports _
SO-1:
`January 31,2008
Name change from The Pittsburg and Midway Coal
company to Chevron Mining Inc ,
Mit
'.
May 5, 2008 - ' - '
Retention of West Ridge divei:Siidditdh -
MR-54
'
July 7; 2009 ` '''
Update the list of Owner's of lands contiguous to the
permit area
TR-48
August_ 20,,2009 _ , ,
Terminate water monitoring
SL -
December 11, 2009 '
Phase I, II, and III 0 acres of Oak Creek facilities
Tiple porkl§'Were regraded in 2005: The Center Ridge,- West Itidge,vand Moffat ponds
are approved as permanent structures.
Surface and groundwater are monitored for impacts. Surface runoff from disturbed areas
is thaliffeled t "SedithentatiotYWri'ds located in each of the West Ridge, Moffat, and
Centel Ridge'aida-SittfaCe •Water-Wa.S 'monitored upstream and downstream of the mine
in Trout Creek Spoil spring water is conveyed to :sedimentation ponds.djiginibedatea
runoff and Sfibil §pritt water rerbiit�reda sediment p'ondAisCharge-poirits.
Grotindatel\VaS monitored dowriqgradient froidthe mining operation in spoil, in Trout
Creek alluvium, and in'theTrOUt Creek Sandstone,' Water monitoring frbifilrblitidwater
wells and stream monitoring ceased with the approval of TR48 (Alignst 2b09).
Groundwater wells were sealed in accordance with Rule 4.07.3, and well abandonment
reports provided to the Divisibri. the exception of the Moffat, Center Ridge, and
West Ridge ponds, and the privately-owned Trout Creek Sandstotie•Well, all ireatihent
and monitoring structures have been'reclaimed. ChevibhMining; Continnes to
monitor discharge from the three permanent ponds in accordance with the Colorado
Department of Public Health and Environment (CDPHE) permit CO-0032638.
Water has not been used on the 'mine Since reclamation operations were largely
completed. Water was obtained from 'a pump station located adjacent to Trout Creek
(removed and disturbance reclaimed). The operator received approval for the pump from
the Army Corps of Engineers. Chevron Mining has obtained rightS` flit all Water Usage at
the operation. Details concerning water rights are located in Section 3.6 of the PAP.
., • • •
Revisions to the PAP since4lie' lst Permit Renewal('
Permit Renewal Mittibet 5 waSi-atiproVed on January 8,-2007. Since that time,- the
following'Minor Revisions (MR), Tchnical Revisions (TR), and Surety Releases (SL)
were approved : • '• ''; ,
C 1980-001 Edna Mine Permit Renewal No. 6 13