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rot Applegate <br /> Group, Inc. <br /> Water Resource Advisors for the West <br /> February 3, 2015 <br /> Ms. Ioana Comaniciu <br /> Division of Water Resources <br /> 1313 Sherman St., Suite 818 <br /> Denver, CO 80203 <br /> RE: Request for 90-Day Test of the SerFer Pit Liner <br /> Mine ID No. M-2008-006 <br /> Dear Ms. Comaniciu: <br /> Construction of the reservoir liner will be completed this week and we request permission to <br /> commence the 90-day test period for the SerFer Pit located in Larimer County on the southwest <br /> corner of Weld County Road 68 and County Line Road, just outside of the Town of Windsor <br /> (NW 1/4 S24 T6N R68W). A vicinity map has been included. An as-built survey of the reservoir <br /> and existing water in the pit bottom will be completed and we anticipate this to be finished by <br /> February 6, 2015. As such,we request to start the testing period on or around February 6, 2015. <br /> Procedure <br /> A rain gage will be placed on-site and data collection will be performed weekly and specifically <br /> after all precipitation events. Precipitation data will also be gathered at nearby weather stations. <br /> No water will enter or leave the pit during the 90-day test except through precipitation and <br /> evaporation. <br /> A survey of the water elevation will be performed prior to and after the 90-day period to <br /> determine the initial and final water volume in the reservoir. A water balance equation will be <br /> applied to the data to determine the amount of water that seeped into the reservoir during the <br /> testing period. Evaporation will be considered in these calculations. The seepage calculation will <br /> then be compared with the allowable seepage calculation derived from the equation provided by <br /> the State. <br /> Weather data will be collected from two nearby weather stations, one located in southwest <br /> Windsor and one in Highpointe Estates. The Southwest Windsor weather station is located at <br /> Lat: N 40.45°, Lon: W 104.96°, and Elevation: 4,975 ft. The Highpointe Estates weather station <br /> is located at Lat: N 40.46°, Lon: W 104.95°, and Elevation: 4,955 ft. The source for this data is <br /> http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=KCOWINDS9 and <br /> http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=KCOWINDS3, <br /> 7405 W.Highma, 50.Suite 123 1490 W. 121"Avenue,Suite 100 118 W.6th Street,Suite 100 <br /> Salida.CO 81201 Denver,CO 80234 Glenwood Springs.CO 81601 <br /> 303-452-6611 <br /> wwv,.applegategroup.corn <br />