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Logan Wash Mine Annual Report
<br />Permit No.: M-1977-424
<br />monitor mine water drainage. Other subsurface structures include the Research Mine drainage
<br />pipeline, the L-1 mine water pipeline, the retort water pipeline, which extends from the sealed L-1
<br />portal to the evaporation pond, and several monitoring wells. Two manholes on the retort water
<br />pipeline, the Upper Manhole and Lower Manhole, are accessed periodically to measure pipeline
<br />flows. Other manholes exist on the retort water pipeline that are buried by shallow colluvium and
<br />vegetative litter, and have not been accessed in recent years.
<br />Wells
<br />Past reconnaissance efforts for well sites constructed in support of mine operations were
<br />conducted within the permit area and within Logan Wash. Eight wells were identified within this
<br />area. Of the 8 identified wells, one well, Well LWCW-lA, will remain in place as a compliance
<br />well until final closure. Wells LW-108, LW-112, and LW-242 were abandoned in 2005 in
<br />accordance with Colorado Division of Water Resources rules.
<br />The other 4 wells, LW-32, LW-45, LW-116, and LW-22, are scheduled to be abandoned in 2009.
<br />Reconnaissance to date has not revealed any other monitoring wells within the permit area and
<br />the Logan Wash drainage.
<br />Reconnaissance for wells located outside the permitted area in distant drainages was conducted
<br />during this reporting period. Wells LW-102 and LW-243 were located in Smith Gulch, Well
<br />LW-103 was located in Kelly Gulch, and Well LW-104 was located in Riley Gulch. Well LW-
<br />121, apparently constructed in Bowdish Gulch, has not been field located because of access
<br />issues. Table 3 shows the well abandonment status as of this reporting period.
<br />2.4 Status Summary
<br />Areas remaining in the permit include Areas 1, 2, 3, 4, 10, portions of Area 13; Area 23, and the
<br />0.65 acre Soil Barrow Area. Areas 1 through 4 include the Upper and Lower Mine Dumps (face
<br />areas), Upper Mine Bench, Lower Mine Bench, and the Research Mine Bench and Dump,
<br />respectively. Area 10 is the former Helo Pad. Area 13 is Miscellaneous Access Roads. Area 23
<br />is the Evaporation Pond and Pipeline. According to the 1985 annual report, the original disturbed
<br />acreage of Area 23 was 14.87 acres, 5.07 acres of which was reclaimed before 1985, leaving 9.8
<br />acres remaining.
<br />Area 13, Miscellaneous Access Roads (Table 2), includes a number of older roads that have been
<br />reclaimed. In this report, the Mine Bench and Portal roads referred to in Table 2, consist of the
<br />Lower Access Road (1.0 acres), Upper Access Road (5.3 acres), Upper Bench Road (1.4 acres
<br />including bench), and Lower Bench Road (0.9 acres not including bench). Area 1, the Upper and
<br />Lower Mine Dump faces (12.36 acres) were revegetated during 2003-2005. Area 2, the Upper
<br />Mine Bench (0.74 acres) was revegetated in 2004 and 2005. Area 4, the Research Mine Bench
<br />(2.75 acres) and Dump (1.51 acres), Area 10, the former Helo Pad (0.24 acres), and the Upper
<br />Bench Road and Lower Access Road areas of Area 13 were revegetated in the fall of 2005. In
<br />addition, the toe of the Lower Dump (1.64 acres) was identified as an area requiring reclamation
<br />after a major storm event in 2004 deposited debris flow material from the Lower Dump at the toe
<br />of the dump; this area was revegetated in 2005.
<br />Areas currently not expected to be reclaimed under the mine permit are the Lower Bench (Area 3,
<br />2.1 acres), the Lower Bench Road (Area 13, 0.9 acres), and the Upper Access Road (Area 13,
<br />BLM "tramroad" right-of-way, 5.3 acres) and the Evaporation Pond and Pipeline (Area 23, 9.8
<br />acres). These surface areas comprise a total of approximately 18.1 acres.
<br />Western Water & Land, Inc. 3
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