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�, l B11 <br /> ��Iagef <br /> monitoring of depth to groundwater for all land associated with the change of water right in <br /> this SWSR Information regarding depth to groundwater may be provided using existing <br /> irrigation wells, existing or new monitoring wells, or piezometers located on the dried-up <br /> fields. Applicant may utilize wells or piezometers located within 1/ mile of each field <br /> provided that the Applicant can demonstrate the depth to ground water information <br /> available off-site is representative of the depth to groundwater on the dried-up land. The <br /> Applicant shall modify its accounting to reduce the amount of the calculated HCU that may <br /> be claimed in this SWSP according to the table below. Measurements taken at the start of <br /> each month will determine the necessary reduction in credit to be applied during the <br /> following month. The Applicant may use another methodology upon review and prior <br /> approval by the State Engineer and Division Engineer. (Construction of monitoring <br /> holes/wells, or piezometers requires that permits or notices be obtained as described in <br /> Table 1 of the Water Well Construction Rules.) <br /> Depth to Groundwater (Feet) Percent Reduction in Calculated HCU1 <br /> Native Grass Alfalfa <br /> 1 85% 100% <br /> 2 50% 90% <br /> 3 30% 75% <br /> 4 20% 50% <br /> 5 15% 35% <br /> 6 10% 20% <br /> 7 5% 15% <br /> 8 0% 10% <br /> Adapted from EVAPOTRANSPIRATION AND AGRONOMIC RESPONSES IN FORMERLY IRRIGATED MOUNTAIN MEADOWS, South Park, <br /> Colorado,March 1, 1990; Revised September 1, 1991 <br /> 13. The approval of this SWSP does not relieve the Applicant and/or the landowner of the <br /> requirement to obtain a Water Court decree approving a permanent plan for augmentation <br /> or mitigation to ensure the permanent replacement of all depletions, including long-term <br /> evaporation losses and lagged depletions after gravel mining operations have ceased. Since <br /> reclamation of the mine site will produce a permanent water surface exposing ground water <br /> to evaporation, an application for a plan for augmentation must be filed with the Division 2 <br /> Water Court, to include, but not be limited to, long-term evaporation losses and lagged <br /> depletions. The Applicant has indicated that a plan for augmentation will be developed <br /> when additional information has been gathered regarding the method and rate of <br /> infiltration. <br /> 14. If a lined pond results after reclamation, replacement of lagged depletions from mining and <br /> dewatering shall continue until there is no longer an effect on stream flow. Any subsequent <br /> request for a renewal/additional SWSP for this site must include information regarding <br /> the Applicant's plans for filing an application with the water court for a plan for <br /> augmentation. <br /> 15. In accordance with the letter dated April 30, 2010 from the Colorado Division of <br /> Reclamation, Mining, and Safety ("DRMS"), all sand and gravel mining operators must <br /> comply with the requirements of the Colorado Reclamation Act and the Mineral Rules <br /> and Regulations for the protection of water resources. The April 30, 2010 letter from <br />