2009-03-05_PERMIT FILE - M2008080 ‎(4)‎

• Permit No: M2008080
• IBM Index Class Name: PERMIT FILE
• Doc Date: 3/5/2009
• Doc Name: Adequacy Review Response
• From: J&T Consulting, Inc.
• To: DRMS
• Email Name: MAC
• Media Type: D
• Archive: No

M-2008-080 - Journey Ventures, LLC - Journey Ventures Pit - 112 (c) Application Preliminary Adequacy Review Response
March 5, 2009
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10. The applicant has stated that the handling of fuel will conform to all local, State, and Federal
regulations. The operator must indicate that there is a Spill Prevention Control and
Countermeasure (SPCC) plan in place and that the SPCC plan will be implemented prior to
storage of fuel or oil products. This can be done by submitting a letter to the Division, on company
letterhead, affirmatively stating that the plan has been implemented The operator does not need to
submit a SPCC plan to the Division; however, it must be available for review at the facility or the
nearest field office during an inspection conducted during normal business hours
A letter is attached acknowledging that Journey Ventures, LLC has a SPCC plan in place and
will implement it prior to the storage of fuel or oil products at the Journey Ventures Pit.
11. The warm water canal located in the southern portion of the permit area lies within areas that will
be excavated Please specify how the operator intends to mine through the canal, Will the canal be
relocated and if so, at what point would it be relocated? Please reflect any changes on the Mining
Plan Map and the Reclamation Map. In addition, state how the operator will ensure that pre-
mining flows of the canal are maintained throughout the mining and once mining is complete.
The wetland located in the southern portion of the permit will require obtaining an Army Corps
of Engineers 404 permit prior to mining Phase 8. We have provided correspondence with the
Army Corps of Engineers by having a jurisdictional determination completed on the wetland
areas within the property as indicated in their referral letter to you. The plan, at this point, is to
mitigate for removal of the wetland by purchasing wetland bank credits however the 404 permit
has not been submitted and will not be submitted until mining commences in Phase 7. The
wetland would be removed during the mining of Phase 8. The pre-mining flows are going to be
measured such that the flows can be recorded prior to exposing ground water, which will begin
in Phase 3, to create a base line of data. During mining JV will be dewatering to recharge
ditches that eventually outfall to the culvert crossing at the southeastern edge of the wetland.
We anticipate the dewatering flows will be equal to or greater than the pre-mining flows
currently being intercepted from the groundwater by the wetland. Once mining is complete the
edge of the wetland at the culvert crossing will remain and continue to intercept groundwater, if
the flow is cutoff a drain will be installed around the perimeter of the slurry wall such that flow
would not be cutoff and discharge to the culvert crossing at Weld County Road 51. The drain
will also be installed, if required, such that any mounding effect (if mounding occurs) on the
west side of the pit would be mitigated. This also holds true for any shadow effect or cutoff of
the seasonal groundwater elevations (if a shadow develops) develops that the drain would
equalize the elevations back to seasonal levels. JV has installed piezometers around the
perimeter of the pit to measure these levels prior to exposing groundwater which is
approximately two years from present. The piezometers will continue to be monitored during
mining and after the slurry wall is installed.
6.4.5 Exhibit E - Reclamation Plan
12. The Reclamation Plan states that a perimeter drain will be installed if needed to convey
groundwater around the reservoir. The applicant should identify the trigger(s) that will determine
if the drain is needed
Journey Ventures, LLC agrees that if differences of 18 - 24 inches or greater occur from the
seasonal groundwater data gathered from the piezometers prior to dewatering operations
during mining, the perimeter drain will be installed after the slurry wall is installed. The data will
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