2019-12-03_HYDROLOGY - M1983090 - Laserfiche WebLink

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Poudre Pits SWSP December 3, 2019 Plan IDs 3218 if 4585 Page 6 of 9 For any gravel pit whose reclamation includes unlined ponds, a plan of augmentation approved by the water court must be obtained to cover the long term evaporative depletions. Until an augmentation plan is obtained the operator may post a sufficient bond to backfill or line the site thereby eliminating any long term augmentation requirements, or permanently dedicate shares that will be used in an augmentation plan to the pit. For any gravel pit whose reclamation includes lining or backfilling of the pit, bonds must be posted that can be used to complete the reclamation plan should the operator walk away from the site. The North La Poudre and La Poudre pits have been bonded through DRMS and are in compliance with the April 2010 DRMS letter (approach #1 and #3). A summary of each pit's status regarding their long term augmentation and bonding held through DRMS is shown on the following table: Table F - Final Reclamation Summary Site DRMS Proposed Final Bond Name Permit # Reclamation Amount Comments Operator increased reclamation liability bond on 4/22/2013 to comply with DRMS requirements for North la M-2000-144 Unlined Ponds $1,158 930 exposed groundwater on site. Operator increased Poudre reclamation liability bond on 7/26/2017 in response to the increased acreage approved in amendment AM01. Operator increased reclamation liability bond on 5/3/2013 to comply with DRMS requirements for La Poudre M-1983-090 Lined and Unlined $1,506 500 exposed groundwater on site. Operator increased Ponds reclamation liability bond on 12/17/2017 in response to the increased acreage approved in amendment AM02. Conditions of Approval I hereby approve the proposed substitute water supply plan in accordance with 5 37-90-137(11), C.R.S., subject to the following conditions: 1. This plan shall be valid for the period of January 1, 2020 through December 31, 2020 unless otherwise revoked or superseded by decree. 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 of $257 for each DRMS site, and with all necessary leases and other supporting documentation, no later than November 1, 2020. If a renewal request is received after the expiration date of this plan, it may be considered a request for a new SWSP, in which case a $1,593 filing fee will apply. 2. Well permit no. 61571-F was obtained for the La Poudre Pit in accordance with 5 37-90-137(2) and (11), C.R.S. This permit allows for up to 33.3 acres of exposed groundwater and allows for operational losses from the mining of aggregate, production of concrete, and dust control. The water use projected in this SWSP remains within the permit's limits. 3. Well permit no. 78235-F was obtained for the North La Poudre Pit in accordance with 5 37-90-137(2) and (11), C.R.S. This permit allows for evaporation, dewatering, and operational losses from the mining of aggregate, production of concrete, and dust control. The water use projected in this SWSP is within the permit's limits.