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r II , " I I ~ i I, !I I, I' I ~) I' \ ',I ! , " f' , 'I' ,. .- ,--.~ .:;. , ... ,) OPERATION AND MAINTENANCE 11 .about 101.000 acre feet. Thereafter one pump per plant was oper- ated until the end of the fiscal year. The following table gives the hours of pump operation, the energy used and the acre feet of water pumped for the fiscal year 1947-48_ PUMP HOUllS KWlIR KWHR FUR WATER PU..NT OF FOR STATION PUMPED OPERATIUN PU:-.[PIS(; SERVICE ACRE FEET Intake m 7,883.68 47,583,000 176,200 145.936.9 Gene .... .. ...00....... 7.720.95 50,943.000 1.234,000 147.779.1 Iron Mountain.. 7,805_19 22,517.000 641,500 133.238_7 Eagle Mountain. 7,845_51 68,435,000 424,700 131.011.8 Hayfield h_h.. 7,795_75 70.121.000 389.500 132.210.5 Camino _.. 48,700 Total 259.599,000 2,914,600 Total energy used on pumping system.. Transmission and transformation losses.. KWHR .. _.... h h..... _262,513,600 11.919.950 . _.. ____ ___. ___ _274,433.550 Total Hoover energy used for pumping system.. Maintenance of pumping equipment. camp auxiliary apparatus, pipe lines and structures was carried on. Means were provided for measuring and keeping records of water used for domestic and other purposes at the pumping plant camps, and water diverted frum the pumping mains for cooling transformers and motors. The yield of the water well at Camino fell off to such an extent that a well contractor was engaged to reperforate the casing and sand pump the well. The yield was only slightly improved and the present water supply is barely adequate for the camp. The average force required to operate the pumping system, in- cluding the transmission and telephone lines and the patrol roads, was 77 as against 75 for the preceding fiscal year. The two addi- tional men are engineering aides, recent electrical engineering grad- uates. who assist the test engineer in maintenance and adjustment of the electrical control apparatus in the pumping plants. The mcsshall, dormitory, and guest house at Gene camp were operated continuously. The messhall at Iron Mountain camp was operated for a short period to accommodate men working on swim- ming pool construction and a survey party from the U. S. General Land Office engaged in surveys in the vicinity of Danby Dry Lake where the District is investigating salt deposits. Di,trict use of elecb.;c energy Table 3 shows in kilowatthours the obligation of the District to pay for Hoover firm energy up to May 31, 1948, the amount of