2022-11-07_REVISION - C1981041 (2)

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Creek at the following locations; SWGS-02--located on Cottonwood Creek in the NE 1/4 SE 1/4 Section 12, immediately upstream of No. 3 South Mains, SWGS-03-- located on Rapid Creek in the SE '/4 NE '/4 Section 7, and SWGS-01-- positioned on Rapid Creek downstream of the confluence with Cottonwood Creek. Flow at SWGS-02 and SWGS-03 was recorded bimonthly during low flow (June through November). Flow measurements on SWGS-01 were collected with continuous flow recorder when the creek was not frozen. Monitoring at SWGS-01, SWGS-02 and SWGS-03 was discontinued with the approval of TR-67 in February of 2016. The flumes for SWGS-01, SWGS-02 and SWGS-03 were removed in August of 2016. Monitoring of Coal Creek and Jerry Creek was initiated in 1995. In 1999,monitoring requirements were reduced to downstream stations SWGS-06 on Coal Creek and SWGS-08, on Jerry Creek. The ephemeral flow in Coal Canyon will be monitored at the "dip section" culverts located between CRDA-I and CRDA-2. The intermittent flow of Jerry Creek was measured at a culvert near the Highline Canal,a short distance upstream from the creek's confluence with the Colorado River. Instantaneous flow was measured quarterly at the culverts, for which flow ratings have been provided. Monitoring of Jerry Creek, SWGS-08,was discontinued in September 2011 with the approval of TR-62. H. Transfer of Wells Information on the final disposition of monitoring wells and other pertinent data is found in the permit application beginning on page 14-29. All mine openings and wells will be permanently closed using permit specified measures, with the exception of approved permanent dewatering pipes. The operator projects no discharge from the Roadside North Mine following permanent sealing. At the Roadside South Mine, water will be allowed to fill abandoned areas to an elevation below the level of the sealed Northwest intake portal. Approved permanent discharge structures are located at Outfall 016, a gravity flow discharge pipe located near the North Decline reclaimed area, and Outfall 002, a siphon type discharge structure located at the backfilled Northwest Intake Portal. Outfall 016 is the primary discharge site; Outfall 002 is approved as a back-up system for use in the event that Site 016 malfunctions. Wells in contact with aquifers will be filled with concrete or other suitable sealant and plugged with a concrete seal. The permittee is not proposing to transfer any well. I. Discharge of Water into an Underground Mine No surface water is intentionally diverted into the mine workings at the Roadside Portals Mine. In 2014 a surface landowner directed ditch water into surface holes overlying old workings. This resulted in apparent hydrologic communication between the surface ditch water and the underground workings. No crops were being irrigated with this ditch water in 2014. TR-69 was approved by the Division to repair an old air shaft that appeared to be a source of the hydrologic communication. The landowner appealed the Division's decision to approve TR-69 to the Mined Land 30