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Somerset Mining Company 1994 Annual Hydrologic Report SMC responded with, "If any reduction in flow from the undermined ephemeral drainages or springs is attributed to the effects of mining, and it is determined those reductions in flows are depleting the flow in the North Fork of the Gunnison River, then the operator will augment the flow in the river as required by applicable State laws." The Division included a discussion of the springs in the Proposed Decision and Findings of Compliance for Permit Revision No. 2., and in the Cumulative Hydrologic Impact Study - North Fork of the Gunnison River (Revised 9/25/92). The CHIS states in parts: "The underground mining operations, through subsidence effects, may reduce stream flows or flows from springs and seeps." "Streamflow reduction could develop from three separate scenarios -increased infiltration of runoff through subsidence fractures, direct stream recharge to the mine in Zones of stream undermining, and loss of spring flow." "Despite the presence of subsidence features at several of the mine sites, this impact has not been identified by any of the monitoring programs." "Streamflow may be diminished by a reduction in spring discharges. Decreases in spring baseflow to streams would be caused by interception of ground water sources by subsidence features. The intercepted water would remain within the North Fork of the Gunnison drainage basin, but the location of surface contributions could be altered. Three mines in the CHIS area monitor springs and seeps for possible subsidence impacts. from mining - Hawk's Nest, the West Elk Mine, and Orchard Valley. Hawk's Nest recorded no changes in flow while they were operating, and currently they do not monitor flow." Due in part to a change in personnel at SMC, the practicable beginning of the 1993 spring monitoring commenced at the end of June. In order to make up for this oversight, the required spring monitoring was extended through June of 1994, as included in Technical Revision No. 18. During the review for Technical Revision No. 18, the Division required the baseline analysis to be conducted, submitted, and approved prior to mining within the angle of draw of Springs 1-11. SMC agreed not to perform secondary mining under Springs 1-11, and subsequently agreed not'to mine within the angle of draw of Springs 1-6 or Springs 10 ~ 11 until the baseline monitoring and interpretation of data is complete and approved by the Division. Spring monitoring data for Springs 1-11 are included in this report. When the present spring monitoring was begun in June 1993, effort was made to locate the springs as marked on the Monitoring Location Map from western Slope Carbon Hawk's Nest Mine included in the permit documents as page 2.04-SOxviii. The legend indicates the 10