PERMFILE52017

• Permit No: C1981012A
• IBM Index Class Name: Permit File
• Doc Date: 11/16/2006
• Section_Exhibit Name: Section 2.05 Operation and Reclamation Plan
• Media Type: D
• Archive: Yes

galvanized CMP and completed in the cobble and gravel fill
• of the channel. Total depth of PAW-3 is approximately
20 feet from the top of the casing. The well was
established in the backfilled channel during the diversion
of the Purgatoire River. It was established to monitor the
quality and quantity of water movement into the upstream
(west) end of the diversion.
PAW-4: A sample from an alluvial well located adjacent to the
Purgatoire River approximately 100 yards downstream of
PAW-3. The well was established in the backfilled channel
during the diversion of the Purgatoire River. Total depth
of PAW-4 is approximately 15 feet from the top of the
casing. It was established to monitor the quality and
quantity of water movement into the downstream (east) end of
the diversion.
PAW-8: A sample from an alluvial well located below the Refuse
Disposal Area. The objective of this well is to identify
impacts on the alluvium of the Middle Fork of the Purgatoire
from the waste pile.
PAW-9: A sample from an alluvial well located near PRS-4. The
objective of this site is to assess impacts on the alluvium
of the Middle Fork of the Purgatoire downstream of the New
Elk facilities area.
MW-1 - Shallow monitoring wells located near the site of removed
MW-10 underground storage tanks west of the Industrial Building.
These sites are monitored to evaluate the success of
• remediation work.
Siring Springs in the mine area have been monitored since 1984.
Sites With liability release of the underground workings, all of
these spring sites lie outside of the current permit
boundary. Assessment of spring data through 1998 indicates
no effects of mining on these sites and no further
monitoring is proposed. Spring 19 is located east of the
New Elk workings in an unnamed tributary of the Purgatoire.
Additional monitoring of this site was required in the CDMG
approval of the Thickener Recycling revision (TR-34). The
Division will be notified in writing if the plan for TR-34
is implemented and moniitoring of this spring will continue.
PRS-1: A grab sample and flow station located on the Middle Fork .of
the Purgatoire River above the surface facilities of the New
Elk Mine to act as a control station without influence of
mining. This station was selected to assess stream quality
and flow above mining activities.
PRS-4: A grab sample and flow station located on the Purgatoire
(NE-080) River below the New Elk Mine Surface Facilities, and above
the confluence with North Fork. This station was
established in 1993 to assess potential effects of mining on
stream quality. Results from this site are periodically
sent to CDPHE in NPDES reporting for site NE-080.
RDA Pond A dip sample acquired from either the discharge or directly
from the pond located below the Refuse Disposal Area (RDA).
•
(revised 03/11/99)
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