2011-02-18_REVISION - M2000158

• Permit No: M2000158
• IBM Index Class Name: REVISION
• Doc Date: 2/18/2011
• Doc Name: Adequacy Review Response for #4-email
• From: Civil Resources, LLC.
• To: DRMS
• Type & Sequence: AM2
• Email Name: JLE
• Media Type: D
• Archive: No

ivr. t[,Nnt.
Pane .z
LCIVIL RESIDURCES,LLC
Site Preparation Phase 1- Water Control Plan
6) Included with the adequacy response was an amendment to Exhibit G titled "Water Information -
Groundwater Control Measures". This exhibit included several maps titled "Site Preparation Phase 1".
Please indicate when the "Site Preparation Phase 1" operation will be conducted. Also, please include
a narrative that specifically identifies all the activities to be conducted as part of the site preparation..
The Site Preparation Phase 1 plan was prepared in anticipation of the slurry wall construction occurring
immediately after approval by the DRMS and SEO. However, the slung work is currently on hold and
therefore, this "Phase 1" of work will likely occur as part of the slurry and embankment construction.
The information was only provided to address your comments regarding our long-term plan to control
groundwater mounding after slurry wall construction and is only anticipated to occur as part of the slurry
wall construction project..
7) Please provide specifications and designs for the proposed "Drainage Outfall to the River" structures.
The Phase 1 information was only provided to address your comments regarding our long-term plan to
control groundwater mounding and is not part of our current amendment. We are not asking for
approval by the DRMS of this phase of work (refer Response 6. Above) and will submit a Technical
Revision for this work, if so required, prior to completion.
8) The site preparation maps indicate several areas will be used for soil/spoil storage. How long will this
material be stockpiled? How will the stockpiles be configured and stabilized to protect against wind and
water erosion?
The Phase 1 information was only provided to address your comments regarding our long-term plan to
control groundwater mounding and is not part of our current amendment. We are not asking for
approval by the DRMS of this phase of work (refer Response 6. Above) and will submit a Technical
Revision for this work, if so required, prior to completion.
9) Map P1-5 indicated two ponds will be created or have already been created. The map also indicates
there is an existing pump/well in this location to be used for construction purposes. Will water be
impounded in these ponds for longer than 72 hours? If so, does the current approved temporary
substitute water supply plan cover the evaporative loss of the impounded water? Please submit
documentation that the Operator has adequate water rights and that the water from the pump/well is
approved to be used for construction use.
The Owner is obligated to submit an accurate TSSP reflecting all depletions resulting from the mining
and will complete that update as required by the State Engineer's Office. The Phase 1 information was
only provided to address your comments regarding our long-term plan to control groundwater mounding
and is not part of our current amendment. We are not asking for approval by the DRMS of this phase of
work (refer Response 6. Above) and will submit a Technical Revision for this work, if so required, prior
to completion.
6.4.19 EXHIBIT S - Permanent Man-Made Structures
10) According to the response to item 20 of the Divisions Adequacy Review. The applicant committed to
not mining within 200 feet of the following structures:
a. Structure #2; Oil/Gas Wells and Facilities owned by Petro Canada
b. Structure #7; Utility Line owned by Xcel Energy
c. Structure #8; Buildings owned by Ptasnik Land Company
It appears the owner for Structure #2 has changed to Noble Energy. Please commit to marking these
structures in the field, as well as the 200 foot setback until the structure damage reimbursement
agreements have been submitted and approved by the Division. If the application is approved, a