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Reservoir Storage Measurement: Storage levels in Boyd Lake are measured using atape- <br />measuring device on one of the pumps in the pump house. A staff gage owned by Greeley <br />on its pumping plant on the west side of the lake is sometimes used although it only <br />extends down to a gauge height of 20 feet. The superintendent for the ditch company is <br />responsible for collecting and reporting the end-of--month storage amount to the Water <br />Commissioner in Water District 4. <br />Hoots Reservoir and Equalizer Lake (No Structure IDs) <br />Hoots Lake and Equalizer Reservoir have a total capacity of approximately 400 ac-ft but do not <br />have storage water rights independent of the three major reservoirs under the GLIC system. <br />Hoots Lake and Equalizer Lake are operated to maintain sufficient head in the canal for water <br />deliveries to shareholders. GLIC purchased Hoots Reservoir in 1978 and has operated Equalizer <br />Reservoir as the main control headgate below the upper storage systems independent of Hoots <br />Reservoir prior to 1978. <br />Reservoir Seepage/Evaporation Information: No studies have been conducted to quantify <br />seepage losses from the various reservoirs operated by GLIC. Total system losses of 23 <br />percent are assigned to GLIC deliveries, of which about one-half, or 11 percent losses are <br />typically assigned to reservoir seepage and evaporation. Reservoir seepage generally <br />accrues to the lower reservoirs in the system and to the Loveland Greeley Canal. Any <br />seepage water collected in the Loveland Greeley Canal is used on lands served by the <br />ditch. <br />HydroBase Data: The monthly data available in HydroBase over the 1950-2002 period of <br />record pertaining to the GLIC Reservoir System include the following: <br />End-Of--Month Storage Contents are summarized in Figure 4. Note that Figure 4 also <br />illustrates the total storage available to the reservoir system accurately only over 1975- <br />1979 due to the missing records in HydroBase of storage contents data for other years in <br />the 1950-2002 period. <br />• The following storage contents data are missing <br />- Lake Loveland -Water years 1950-1974, 1980-2002. GLIC provided gage <br />heights for Lake Loveland over the 1980-2002 period. <br />- Horseshoe Lake -Water years 1952, 1953, 1964-1968, 1986-1987. GLIC <br />provided gage heights for Horseshoe Lake for portions of 1986 and 1987. <br />- Boyd Lake -Water years 1964-1968 <br />Greeley Loveland Irrigation Company Operating Memorandum.doc 12 of 18 January 5, 2005 <br />