2019-05-03_PERMIT FILE - C1981038A (4)

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2.05 e1?PLiG'~+TSGV F~C'R ?FItbIIT FCR 6[IItF'1CE QZ DhT'^ ~li~ el~iiv~ir~S. - RDQffII2F3~~NPB FCI2 0PFRA1'IQd A2~ID RDCLAl~TION FLANS. • 2.05.6 Mitigation of bZSface Opal Minims IIDpacts (ODnt'd.) if possible. Refer to CWI Owned Water Rights Section in the Water Replacement Plan AppesYlix in Volume 5A. 6) CWI will continue to cooperate with local water users to improve water transportation systems. An improvement in the transportation system for water can increase the usable flow. In this way, even potentially i„m~a~,~rahle water losses can be mitigated in advance. If, as expected, no i~acts result frwn minircr, improved water conveyance systens will permit better use of the surrourxiing area. In the Fast Roatcap Drainage, CWI has cooperated with local water users to re-route irrigation water through the West Roatcap drainage instead of the ~rt Roatcap drainage so as to eliminate any significant effects of urdarmi n i m this aroa , 7) Finally, other means available for protecting the rights of water users should be continually considered. Possible additions to plans could include increases in water storage aril vegetation manipulation. Specific water replacement plans addressing features within each drainage basin have been developed. Refer to Water Replacement A~~; ces in Volimws 5 arxi 5A. One feature in particular has been • subsequently identified as a critical watex source for potentially affected users and warrants discussion. The Upper Cabin Spring, referred to as Spring 31 by COVCC, and located approximately at the intersection of Sections 9, 10, 15, aryl 16 in Township 13 South, Range 92 West, serves as a principal source of domestic water supply for members of the Stucker Mesa Domestic Water Ca~any. A detailed water replacement plan for this feature was developed and is incorporated into the permit doannent as part of technical revision TR-22. Monitoring of the Upper Cabin Spring was not required prior to the approval of TR-22. However, limited data from the feature has been collected from the site since 1983. A concerted effort to monitor the tlrrv~r Cabin Spring on a continual monthly basis was initiated in April, 1992. Collected data is generally indicative of an alluvial/colluvial water system characterized by variable discharge related to seasonal recharge of the system (refer to Annual Hydrology Reports for data). Water quality from the spring is compar-able to water quality typically encountered from other alluvial/colluvial aquifers in the permit area. No anomalous geologic features have been identified in the area which might suggest a deep groundwater origin or connection for the spring. No areally extensive water bearing formations are known to exist in the area. The drainage (Long Draw) the spring is located in is typified by several slumps and landslide areas, particularly on the northwest side of the drainage, which are indicative of instability associated • with saturated surficial deposits. A sandstone outcrop occurring just above the spring may serve to divert shallow subsurface fleas to the TR 93-22 Revised 03/18/93 98