2021-10-29_PERMIT FILE - M2021064 (6)

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G-2. GROUND AND SURFACE WATER INFORMATION: 1. Sources of Ground Water on site or potentially affected by operations on site: None. There are no wells on the site.Attachment G-2-A has data and analysis with a map of the 12 recorded wells located within'/z mile of this site.2 Mining at this site will be limited to depths of approximately 23 feet below existing ground level. This places mining well above the known water table,3 including any alluvial aquifer of any streams. 2. Sources of Surface Water on site or potentially affected by operations on site: • There are NO recorded or known sources within ''/z mile of the site.There are no recorded springs. Martinez Creek(ID#00184435) is approximately''/z mile West and Dutton Creek(ID#00184341) is approximately%mile Southeast. One unnamed ephemeral tributary of Stevens Reservoir on Dutton Creek is shown on some maps to head up just east of the site but there is no data on flow or use of that water. • The only source of surface water on the site is precipitation directly on the site. No basins, ponds,springs or potential for springs have been identified. The nearest known spring is the Bud Seavy Spring (WDID 790656) located about 1.2 miles to the Northeast(upstream). • The Site is on the ridge dividing the watershed of Martinez Creek(to the West)from its tributary Dutton Creek(to the East).These flow to Stollsteimer Creek(ID 00184435)then the Piedra River, a major tributary of the San Juan and Colorado Rivers. If there is any surface runoff from the site, it would flow into one of several unnamed ephemeral streams entering Stevens Reservoir or Dutton Creek. Some flow off the very south point of Oakbrush Hill may enter Martinez Creek below Hatcher Reservoir and below the intake for the J B Martinez Ditch (DWR WDID 7800564). Neither of the streams flow directly into any of the"Pagosa Lakes"to the south,although water from them may be diverted into those lakes. • There are no irrigation ditches on or closer than%mile to the Site, and no indication that surface water could enter those ditches.The Town of Pagosa Springs and surrounding developed area depend on municipal water coming from the Hatcher Water Treatment facility,via the Fairfield Municipal Water System's pipeline from Hatcher Reservoir to the northwest.That reservoir also supplies the G.S. Hatcher Ditch(WDID 7800550). • The landowner has no recorded water rights on the Site or the part of the parcel on which the Site is located other than the well(see Attachment G-2-A)located to the north of the site. Water to be used during mining will be trucked in from authorized and approved sources of municipal and industrial water, probably the Fairfield System or a raw water source such as Stevens Reservoir.This will be coordinated with and through the Pagosa Area Water and Sanitation District, as needed.This will be used by the mining operator,for dust control, road maintenance, and washing of material(if needed). • Irrigation is not required for reclamation. • There will be little or no water stored on-site for firefighting. • Potable water for human (miner and other)consumption will be brought to the Site. • Chemical toilets will be used for sanitary purposes with contents disposed of at a permitted publicly owned treatment works or other wastewater treatment facility. 2Review of Colorado State Engineer records,23 July 2021 3 Based on past mining of the area,geological mapping,and engineer assessment of the topography and hydrology. C&J Gravel Products, Inc. Page 33 of 93 20 OCT 2021 Application for Permit: Oakbrush Hill Gravel M-2021- C&J-DPR-V5-001