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Nelson Mining Resource SWSP <br />February 3, 2015 <br />Page 6 of 8 <br />letter from DRMS requires that you provide information to DRMS to demonstrate you can <br />replace long term injurious stream depletions that result from mining related exposure of <br />ground water. The DRMS letter identifies four approaches to satisfy this requirement. If <br />the information you are providing to DRMS is included under the approaches numbered 1 <br />- 3, a copy of that information needs to also be provided to this office (the Division of <br />Water Resources). <br />In accordance with approach nos. 1 and 3, you have indicated that a bond has been <br />obtained for $186,814.00 through the Division of Reclamation, Mining, and Safety <br />( "DRMS "). This bond is for reclamation requirements under the current permit but may <br />not be sufficient for lining or backfilling the pit to ensure that depletions from <br />groundwater evaporation do not occur in the unforeseen event or events that would lead <br />to the abandonment of the Pit. Future SWSPs for this site will not authorize any <br />additional use of ground water until the Applicant provides documentation that a bond <br />sufficient to cover lining or backfilling of the pit has been obtained. <br />14. The Applicant shall perform an inspection and provide verification for all parcels of dried up <br />land used to generate augmentation credits during the term of this SWSP. The final <br />verification of dry up will be in the form of an affidavit signed by an individual having <br />personal knowledge of the dry up for the entire irrigation season for each parcel of land used <br />in this SWSP. In accordance with the attached protocol for dry-up of irrigated land, the <br />Applicant shall provide a written notification to the water commissioner and division engineer <br />by April 1, 2015 identifying the lands to be dried up for the 2015 irrigation season. By <br />October 15, 2015 the Applicant shall provide an affidavit to the water commissioner and <br />division engineer that identifies and confirms the lands that were dried up during the 2015 <br />irrigation season in order that the final determination of augmentation credits for the <br />irrigation season can be made along with mapping showing any revisions to the dried -up <br />acreage. A GIS shapefile must be emailed to Div1Accountine@state.co.us for each dry-up <br />notification and affidavit. The shapefile shall include the pending case number, the WDID of <br />the plan, the acreage of dry-up, and any accompanying metadata. In addition, the datum <br />must NAD83 and the UTM projection must be Zone 13 North. The Applicant shalt modify <br />accounting to reflect that the credit from any dried up fields containing alfalfa or native grass <br />was assessed in the following manner: <br />(a) For fields deep tilled or chemically treated to successfully kill alfalfa or native grass, 100% <br />credit will be given for consumptive use as otherwise computed under the conditions of <br />this approval. <br />(b) For fields not deep tilted or chemically treated to successfully kill alfalfa, records of <br />monthly monitoring of depth to groundwater at existing irrigation wells or existing or new <br />monitoring wells or piezometers within 1/4-mile of each alfalfa or native grass field must <br />be maintained. Credits will be reduced according to the following table when depth to <br />groundwater is less than the depth assumed to provide no significant contribution to <br />alfalfa growth. Measurements taken at the start of each month will determine the <br />necessary reduction in credit to be applied during the following month. The applicant <br />may use another methodology upon review and approval by the State Engineer and <br />Division Engineer. <br />