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RECEIVED <br />ocr 192018 <br />� s Z01e <br />4COlueanthOOAF <br />October 17,20l8 DSg <br />SOLUTIONS <br />Colorado Department of Natural Resources <br />Division of Reclamation, Mining and Safety �fi+ 19 201d <br />--�ykttn: Mr. Jared Ebert wwftar <br />1313 Sherman Street; Room 215 �� <br />Denver CO, 80203 <br />RF: Response to Adequacy Review Comments for North Weld County Water District, <br />Lamb Lakes, File No. M-2018-039 <br />Dear Mr. Ebert: <br />The following discussion and attachments are submitted on behalf of our client, North Weld <br />County Water District, in response to the Adequacy Review comments prepared by the Division <br />of Reclamation, Mining and Safety (the Division) dated October 16, 2018 for the Lamb Lakes <br />site Regular (112) Operation Reclamation Permit application. The information and discussion <br />below address each comment as it was presented by the Division. <br />Rule 6.4.7 — Exhibit G —Water Information <br />5. Prior to new mining and reclamation activities on the Lamb Lakes Site, the applicant <br />commits to providing the Division with a Technical Revision that includes the site <br />Groundwater Monitoring Plan. The Groundwater Monitoring Plan shall include an <br />agreement with the Fort Collins Irrigation Canal Ditch owner addressing potential <br />irrigation flow impacts OR procedures to detect, measure, and mitigate losses to ditch <br />flows during mining and reclamation activities. The applicant understands that the <br />Technical Revision will need to be approved by the Division prior to commencement of <br />new mining and reclamation activities. <br />7. The Groundwater Monitoring Plan shall also include recommendations from the <br />Hydrogeologic Evaluation (Blue Earth Solutions, LLC, October 2018) and at a minimum: <br />a. A map that accurately shows the location of all monitoring wells/piezometers in the <br />plan, <br />b. Well/piezometer construction and completion information that demonstrates <br />measurements from the well/piezomenter are representative of actual groundwater <br />conditions, <br />c. Sampling procedures and frequencies — routine quarterly measurements shall be <br />required and monthly measurements shall be required during lake/pit dewatering, <br />