2017-03-02_HYDROLOGY - M1977436 - Laserfiche WebLink

Home Browse Search

South Platte Combined Replacement Plan Page 2 of 19 March 1, 2017 The Tucson Pit (M-1991-140, WDID 0203033) was previously included in this SWSP. Mining operations at the Tucson Pit have been completed, and a request for a full performance and financial warranty release for the Tucson Pit was approved by the DRMS on April 29, 2016. A portion of the pit (Rogers Reservoir, WDID 0203917) has been lined with a slurry wall and has obtained SEO liner approval. All post -pumping depletions have been replaced under previous SWSPs. The remaining 2.0 -acre pond is located within the boundaries of the Tucson South Pit and will be accounted for and reclaimed under that permit. The general location of the mining sites are identified in Table B below and depicted on the attached f=igure 1. The required fee of $2,570 (10 sites X $257/site renewal fee) has been received (receipt no. 3677685). Table B - Pit Locations Site Name Location Jeronimus Pit Section 16, T2S, R67W Hazeltine Pit Section 9, T2S, R67W Brighton Pit Sections 14 and 23, TIS, R67W Tucson South Pit Sections 1 and 12, T15, R67W Wattenberg Pit Sections 25 and 36, T1 N, R67W; Section 30, TI N, R66W Platte Valley Pit Section 30, T1 N, R66W Distel Pit Sections 7, 8, 9, 17 and 18, T2N, R68W Tull Pit Sections 9, 16 and 17, T2N, R68W W.W. Farms Pit Sections 32 and 33, T6N, R66W F -Street Pit Sections 34 and 35, T6N, R66W This SWSP previously included the Teti Pit (WDID 0203027) and the North Dahlia Pit (WDID 0203028). A plan for augmentation for these two sites was decreed in water court case no. 2007CW198 on December 17, 2013 and all depletions from these sites will be replaced under the decreed plan for augmentation. It is noted that the East 8th Street Pit (M-2000-082, WDID 0303016) is no longer a part of this Combined SWSP. Aggregate sold this pit to Superior Oilfields and as of November 2012 this pit is no longer covered by Aggregate. All depletions impacting the river are the responsibility of Superior and are now covered under Superior's SWSP (WDID 0302562). A summary of the pit operations at each of the eleven sites remaining in this SWSP is provided below. Jeronimus Pit Status: Mining operations at the Jeronimus Pit are complete. Operations (South Platte on-site include backfilling of the pit with fines from the Hazeltine Pit. Mainstem) Depletions covered by this SWSP are limited to water lost due to evaporation. The 14.7 -acre area exposed at the Jeronimus Pit prior to 1981 is tied to the location as shown on the exhibit dated January 31, 2011 as provided in the 2011 SWSP. The credits for the pre -1981 area are tied to the location identified on that map and may not be re -allocated to other areas of ground water exposure within the gravel pit permit boundary. Exposed Ground Water Surface: 5.6 acres post -81, 14.7 acres pre -81 Active Dewatering: No Hazeltine Pit Status: Mining operations at the Hazeltine Pit have been completed and (South Platte reclamation is in progress. The Hazeltine Pit was lined with a soil Mainstem) bentonite slurry wall, and was approved as having been lined to the design standard referenced in the August 1999 State Engineer Guidelines -oF _coo Office of the State Engineer 1313 Sherman Street, Room 821, Denver, Co 80203 P 303.866.3581 7a www. water.state.co-us ,{