APPCOR11363 - Laserfiche WebLink

Home Browse Search

02-16-1995 08~22R11 FROM ~HODY WESTERN TO 913038328106 P.03 I • i i Pater Rights Augmentation Plan. The plan for water right's augmentation (Attachment tb-1) has been submitted to the District Court for uatar District 57. The proposed plan I ~ was developed due to potential water shortages to senior water right holders along the ~~ Yampa Rfver, and to ensure sufficient water availability for senior water rf ghts in the ~ Sege Creek dra inege. Depletions to stream flows from the proposed Yoast Mine supply well ~ were determined to be inaignif icent, however, surface water proposed for retentf on end i industrial usage at Ponds 070 and 012 could impact righted water sources downstream. ~ AtiechmenL 16-1 presents details regarding sCC-owned water rights and rater leasing I agreements that rill be incorporated ineo the augmantatf on plan. Once SCC has secured approval from the District Court, the plan will be implemented and followed tluring the life o} the Yosst mining operations. i Alluvial VaLler Floors Introduction. An alluvial valley floor (AVF) analysis was performed Dy Golder Associ- ates, inc. and Yestern Resources Development in the fall of 1992 and spring of 1993. Tha study focused on those drainages that eeuLd be potentially affected by runoff from the 5-year mining block area; Grassy Creek, Seotchman's Gulch, Annand Draw end an unnamed tlrainege Lying east of Annand Draw. this sLYdy is a Continuation of a previou4 AVF s[utly I ~ conducted by Golder Associates, [nc., ACZ inc. and Ceammerer Ecological Consultants in 1990 which investigated Dry Creek, Sage Creek and upper Grassy Creak (see paaes 73-20 end Exhibits 16-2 and 16-3 in Tab 16 of the Seneca [1•Y Permit). Summary. the entire report of the 1992-f 993 AVF investigations along Grassy Creek, seotehman's Gulch, Armand Oraw, and the unnamed tributary to Scotchman's GuLeh is presented in Attachment 76-3 end Figure 1, Figure 2 and Fieura 3 (Exhibit 16-2). A dfseuaafon of the 7990 AVF study of Dry Creek and sage Creek, along with alluvial deposits and land use maps is also included in Attachment 16-3. No existing flood irrigated fields were identified in the study. One potentially f(oed irrigated field (25 to 30 acres near the conf luenee of Little Grassy and Grassy Creek) was identified beaed on soil suitability. Flow monitoring data for Dressy Creek substantiate there is insuffieien[ flow in Grassy Creek during the Broring season to irrigate a[ (east ~ Ten acres of land, and the cost of a dam cannot be justified considering the smell increase in production that would be realised. 12 wevised 02/15/95