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<br />• Mr. Jeff Deckler <br />June 6, 1985 <br />Page Two <br />Apache Canvon <br />As indicated in the attached Tables, only 20 days of flow were recorded in Apache <br />Canyon over the year. These events were the result of heavy localized thunderstorns <br />which occurred during July and August. Other than these two months, only one minor <br />flow event occurred in June and December while two events occurred in October. All <br />events were in the form of a short duration spike in the hydrograph ranging from 0.001 to <br />51.6 cfs. As previously discussed in other reports, land use in the canyon (grazing, on- <br />stream impoundments, etc.) may be the cause of limited stream flow. <br />Ciruela Canyon <br />Two stations (CCS-1 and CCS-2) located above and below the Golden Eagle Mine <br />were monitored quarterly (see attached Tables). While no flow has been observed at CCS- <br />1, flow at CCS-2 has varied from 10 to 50 gallons per minute. This flow is produced from <br />the Golden Eagle Mine discharge. As with Apache Canyon, land use in the upper drainage <br />may be the result of limited stream flow in the lower canyon. <br />• With this data, Wyoming Fuel believes we have sufficient information to <br />differentiate seasonal flow variations within these canyons. Thus, Wyoming Fuel requests <br />approval to discontinue monitoring stream flow at the two flume stations in Apache and <br />Santsitevan Canyons. Monitoring is now scheduled to continue through June 30, 1985, at <br />which point recorders will be pulled from the flumes. <br />Should you need additional information for the approval, please let us know. <br />Sincerely, ~ <br />~ ' <br />,~ i~~ <br />Ll <br />David M. Stout <br />Environmental Coordinator <br />DMS/tl <br />cc: Mike Kolin <br />lack Snow <br />Jerry Koblitz <br />• <br />