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III. COMMENTS - COMPLIANCE <br /> Below are comments on the inspection. The comments include discussion of observations <br /> made during the inspection. Comments in Section IV describe any enforcement actions <br /> taken during the inspection and the facts or evidence supporting the enforcement action. <br /> North Thompson Creek C-81-025 <br /> 17 May 2010 <br /> Page 1/2 <br /> This was a complete inspection of the North Thompson Creek Mine conducted on 17 May 2010 by <br /> Jim Stark of the CDRMS. The mine has been reclaimed and the Division has approved a Partial Phase <br /> III Bond Release (SL-06) for the site. This bond release reduces the disturbed acreage to 4.1 acres <br /> (from 4.3 acres), the permitted acreage to 411.1 acres (from 3,336 acres), the affected acreage to 411.1 <br /> acres (from 1,504.1 acres) and the bond to$10,000.00 (from $42,115.00). The disturbed acreage <br /> consists of mine water discharge pipes from the#1 and#3 portals, the Long Pond, Treatment Ponds T1 <br /> and T2 and sediment pond P-9. The weather during the inspection was warm and overcast and the <br /> ground was dry. <br /> Availability of records: All of the necessary records were available at the Garfield County <br /> Courthouse in Glenwood Springs. See the records checklist at the end of this inspection for more <br /> details. <br /> Signs and Markers: - The mine ID sign was in place at the main entrance to the mine as well as the <br /> entrance to the developed water resource. The mine ID sign contained all of the required information <br /> (including mine name, permit number and contact information). <br /> Roads: -There is one road that remains in the disturbed area to access the developed water resource. <br /> The road was stable at the time of the inspections. There were no major ruts and no erosional <br /> problems noted on the road. <br /> Hydrologic Balance: - Both the#1 and#3 portals were discharging into the Long Pond. There was <br /> no problem with the water flow through the Long Pond, which is a water treatment pond. It appears as <br /> though the Long Pond was recently cleaned. The pond remains stable and no erosional problems were <br /> noted along the length of the pond. **See pictures at the end of this report.** <br /> - Treatment Ponds T1 and T2 receive the water from the Long Pond via a pipe that runs under the road <br /> (first into T1 the T2). The discharge is routed either into sediment pond P9, the Refuse Pile Pond or <br /> discharged into the North Thompson Creek. The treatment ponds were both well vegetated and stable <br /> at the time of the inspection. No erosional problems were noted on the pond embankments. **See <br /> pictures at the end of this report.** <br /> - The discharge from treatment pond T2 was being routed to both sediment pond P9 and the Refuse <br /> Pile Pond at the time of the inspection. The discharge flowing into pond P9 is from a pipe in the <br /> embankment of pond T2. This pond passively routes water to P9. The discharge to the Refuse Pond is <br /> accomplished by rerouting the water through a second pipe at the T2 outfall. The water is then routed <br /> through a perimeter ditch and into the Refuse Pond. Minrec has stated that they will monitor the <br /> discharge into the Refuse Pond to ensure that it does not discharge into the North Thompson Creek <br /> from that point and to ensure that the pond maintains two feet of freeboard. Once the Refuse Pond is <br /> full Minrec will route the discharge from T2 back to the North Thompson Creek. **See pictures at the <br /> end of this report.** <br />