REP04178

• Permit No: M1977306
• IBM Index Class Name: Report
• Doc Date: 6/15/2007
• Doc Name: Appeal of DMO Determination
• From: Cotter
• To: DRMS
• Media Type: D
• Archive: No

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REDFIVED
July 17, 2006 JUN 15.2001
GR9ND JUNCTION FIELD OFFICE
Russ Means DIVISION OF
Colorado Division of Reclamation, Mining, and Safety RECLgAgq710N MINING 8 SAFE7y
Grand Junction Field Office
101 S. Third St, Room 301
Grand Junction, Colorado 81501
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RE: Permit No. M-1977-306, JD-9 Mine, Appeal of DMO Determination
JUN Z 5 2007
Mr. Means:
Division of Reclamation,
Mining and Safety
Attached is information pertaining to the soil moisture sampler (lysimeter) and the
monitor well installed at Cotter Corporation's JD-9 mine in regazd to the appeal of the
Division's determination that the JD-9 mine should be a Designated Mining Operation
(DMO).
LYSIMETER
The lysimeter was installed in December 2006. It is located just south of the mine waste
pile at the JD-9 mine, the site agreed upon in a field meeting with Division of
Reclamation, Mining, and Safety (DBMS) persormel. A map showing the location of
the lysimeter is included as Figure 1.
Following the installation of the lysimeter attempts to collect samples were begun on a
regular basis. To date there has been no success in collecting any water samples from
this lysimeter. A spreadsheet showing The dates of sampling and the results of those
sampling efforts is also included as Table 1.
MONITOR WELL
The monitor well was completed in Januazy 2007. It is located south of the JD-9 mine
waste dump, the site agreed upon in a field meeting with DBMS personnel. A map
showing the location of the monitor well is included as Figure 1.
The analytical results of the samples collected from the JD-9 monitor well are shown in
the attached Table 2. Also included in this table are the results of a previous sample
collected in June 2006 from the JD-9 mine.
The monitor well sample dated 4-26-07 was the first sample collected from the well after
it had been completed. Following a discussion with DBMS personnel the constituents
shown were chosen to analyze for. Due to equipment malfunctions the monitor well was
not purged prior to collecting the first sample.
Upon reviewing the results of the three sampling efforts it is evident that most of the
constituents have a significant downward trend, indicating that the influence of the
mnoJb-9 - 1 -
Cotter Corporation • West Slope Operations Telephone [phone]
P.O. 80x700, 28151 DD Road, Nucla, CO B1a24 USA Fex (970) 86a-72A7
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