2018-03-09_REPORT - C1981044 ‎(2)‎

• Permit No: C1981044
• IBM Index Class Name: Report
• Doc Date: 3/9/2018
• Doc Name: Annual Hydrology Report
• From: Moffat County Mining, LLC
• To: DRMS
• Annual Report Year: 2017
• Permit Index Doc Type: Hydrology Report
• Email Name: TNL
• Media Type: D
• Archive: No

In May 2014, copper thieves were discovered on site and apprehended by the Moffat County Sherriff s
department. The thieves activities had resulted in $500,000 to one million dollars -worth of damage between
the main warehouse and the multi -services building on site. Security cameras were subsequently installed on
site, and a security company was hired to inspect the site daily.
In November 2016, WFM requested deactivation of TC status, in anticipation of upcoming reclamation of the
site. Reclamation continued through 2017 and is expected to continue through 2018 with the final grading
planned for fall 2018. DRMS will be updated periodically with the status of the reclamation.
3.0 2017 HYDROLOGIC MONITORING PROGRAM
The WFM hydrologic monitoring program includes data collected specifically to meet requirements of the
DMG, as well as data collected to meet the requirements of the Colorado Wastewater Discharge Permit
System (CDPS). Note that "CDPS" parameters were formerly referred to as National Pollutant Discharge
Elimination System (NPDES) parameters in prior AHRs. Specific monitoring locations are illustrated on
Figure 2.
In June 2001, Technical Revision TROI -32 was approved, allowing suspension of many DRMS hydrologic
monitoring requirements while the mine was in temporary cessation (TC). In 2005 BTU EC began to exam
options for future re -activation of the mine site. In view of this considerations, BTU EC reverted back to the
active monitoring plan (pages 1 — 14 of Exhibit 29), during the second quarter of 2006. In the third quarter of
2013 the mine reverted back to temporary cessation monitoring, as it was decided that there were no short
term plans to reactivate mining. Permit documentation relating to monitoring requirements under TC is
provided as an attachment to this AHR.
WFM personnel will continue to be responsible for adhering to the monitoring requirements of its CDPS
permit. Note that data acquisition required under the TC monitoring plan, only include sites:
• Bedrock well TR -7A,
• Alluvial well AVF-5,
• Surface water sites (Williams Fork) WF -1, WF -2,
• CDPS (Permit CO -0034142) sites:
0 1) Mine discharge No. 5 Mine sump [CDPS Outfall 003, a.k.a. site 5D];
0 2) Mine discharge 7 North Angle Well Bore [CDPS Outfall 024, a.k.a. site 9P3], and
o 3) Spring - No. 1 StripPit [CDPS Outfall 022, a.k.a. site 1 SP].
3