2015-02-04_HYDROLOGY - M2005059 - Laserfiche WebLink

Home Browse Search

Nelson Mining Resource SWSP Page 4 of 8 February 3, 2015 Nelson Mining Resource operation, which the Mined Land Reclamation Board has determined equals the estimated costs of reclamation. The reclamation plan for the Nelson Pit is to place a compacted clay liner around the interior of the mine slopes for the purpose of preventing groundwater seepage from entering the pit. This bond is for reclamation requirements under the current permit but may not be sufficient for lining or backfilling the pit to ensure that depletions from groundwater evaporation do not occur in the unforeseen event or events that would lead to the abandonment of the Pit. Future SWSPs for this site will not authorize any additional use of ground water until the Applicant provides documentation that a bond sufficient to cover lining or backfilling of the pit has been obtained. In addition, according to the information provided you indicated that the land owner Mr. Howard Nelson has entered into a lease agreement with the applicant, which states that Lessor will grant to Lessee the water rights associated with the property for processing and augmentation during the term of the lease. The term of the lease is for a period of 20 years from the date entered into the agreement, which was April 18, 2001. Upon termination of the lease, the Lessee shall continue to be liable for the completion of reclamation plans. Conditions of Approval I hereby approve the proposed substitute water supply plan in accordance with §37 -90- 137(11), C.R.S. subject to the following conditions: 1. This SWSP shall be valid for the period of November 1, 2014 through March 31, 2015, unless otherwise revoked, modified, or superceded by decree. The plan will be extended until October 31, 2015 if the necessary measuring and recording devices to measure the changed Last Chance Ditch water proposed to be used as a replacement water source are installed and approved by the water commissioner by April 1, 2015. If this plan will not be made absolute by a water court action by the plan's expiration date, a renewal request must be submitted to this office with the statutory fee (currently $257) by February 28, 2015 or August 15, 2015. 2. Well permit no. 76171 -F was obtained for the current use and exposed water surface area of the gravel pit in accordance with S 37 -90- 137(2) and (11), C.R.S. 3. The total surface area of the groundwater exposed at the Nelson Pit site must not exceed 7.5 acres, which results in a maximum evaporative annual loss of 17.69 acre -feet. 4. Total consumption at the Nelson Pit site must not exceed these aforementioned amounts unless an amendment is made to this plan. 5. Approval of this plan is for the purposes as stated herein. This office must first approve any additional uses for the water. Any future additional historic consumptive use credit given (e.g., agricultural water transfer) for this site must consider all previous credits given. 6. By the next renewal request the Applicant must demonstrate that the acres claimed in the HCU analysis located on the east side of the Nelson Farm (specifically 12.28 acres in