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2019-09-05_REVISION - M2016022
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2019-09-05_REVISION - M2016022
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Entry Properties
Last modified
1/6/2025 3:31:28 AM
Creation date
9/5/2019 3:09:08 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2016022
IBM Index Class Name
Revision
Doc Date
9/5/2019
Doc Name
Adequacy Review Response
From
Arnolds Custom Seeding
To
DRMS
Type & Sequence
CN1
Email Name
PSH
MAC
Media Type
D
Archive
No
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Exhibit G — Water Information <br /> Impact to Surface and Groundwater <br /> The operation of the proposed topsoil mine is not anticipated to have any effects to surface or <br /> groundwater systems. <br /> The nearest surface water feature is Lowline Canal located approximately 1,000 feet to the north (Figure <br /> C-4, Exhibit Q. No surface water feature is present on the Affected Land. An Approved Jurisdictional <br /> Determination has been received from the United States Army Corps of Engineers (USACE), Omaha <br /> District,stating"a Department of the Army permit will not be required for the discharge of fill material on <br /> this site under section 404."However,the USACE has requested that approximately one acre of depressed <br /> area be removed from the southeast corner of the permit area. These changes are reflected in figures <br /> presented in Exhibit C.A copy of the letter is provided as an attachment to this Exhibit.The Affected Land <br /> is bound by a 4 to 6-inch berm and is anticipated to prevent discharge form the site. <br /> There are four groundwater wells located within the 200-foot buffer zone of the affected area. Permit <br /> numbers and owners of record are provided in Table 1 below. Review of the well permits indicate that <br /> the wells are constructed within alluvium of the Lost Creek Basin. Based on an aquifer recharge and <br /> storage study prepared for the Lost Creek Ground Water Management District(CGS, 2011),groundwater <br /> is located within the Pleistocene Gravel and Alluvium at a depth of approximately 50 feet below ground <br /> surface.As the maximum depth of impact within the Affected Land will be less than 2 feet below ground <br /> surface,groundwater will not be impacted.Operational dewatering will not be undertaken. <br /> Table 1:Groundwater Wells within 200 Feet of the Mine Permit Boundary <br /> Owner Permit Number <br /> Prospect Valley Farms 97151-VE <br /> Stanley Gingerich 7203-FP <br /> Stanley Gingerich 7201-RFP <br /> Elaine and Frederick Hepner 247209 <br /> During preparation of the 110 Permit application, Colorado Division of Water Resources indicated no <br /> impact to groundwater resource(letter appended to this Exhibit). <br /> Estimated Water Usage and Sources <br /> Currently, no water is anticipated to be utilized during the topsoil mining efforts. <br /> Primary dust control will be through increasing soil surface roughness in areas not actively being mined <br /> for topsoil and in areas that have been mined. Water may be used infrequently for dust control during <br /> mining activities. Water will be sourced from municipal water sources and transported to the site by a <br /> water tanker vehicle if needed. <br /> Discharge Permit Requirements <br /> As the mining operational plan involves no water usage, no discharge will occur at the site and a NPDES <br /> discharge permit is not required. <br /> Reference <br /> CGS (2011) Lost Creek Basin Aquifer Recharge and Storage Study. Colorado Geological Survey report <br /> prepared for Lost Creek Ground Water Management District dated December 2011.. <br />
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