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r, /'.. ': 0 .;"..;.. ]4 METROPOLITAN WATER DISTRICT no interruption of power until a scheduled outage wa' arranged for repair of the damage. Outages experienced since the line was first placed in service after its completion in August 1937 are as follows: FISCAL yE...." NUMBI::It OF OUTAGES WITHOUT GROUNIl "'IRES 1938-39 _m 1939.40 n 1940.41 .. 19.1-.2 . 1942.43 .. 2 . 38 ...... 22 .. 23 ... ..nnn 33 GROUr-.'1) VhRF.S IN SERVICE 19H.H. 1944.45 . 1915-~6 mn 1916.47 . 1947-48 . . 194849 ]9.19.50 ! .......mnm...n 0 ] o o 1 II In 1942-43, early in World War lI, two %-inch steel ground wires were strung on the transmission towers as a means of insuring con- tinuity of electric power service to the huge Basic Magnesium war ]llant near Boulder City. There were 33 cases of telephone line trouble resulting mainly from falling trees during windstorms and hunters shooting insula- tors and wires. No unusual incidents occurred in connection with maintenance of telephone service. powc/, retiOllrCeS aHd 1lse The District has, until May 31, 1987, the right to the use of two 82,500-kilowatt generators at Hoover Dam, units N5 and N6, and an option on a third 82,500-kilowatt generator, unit N7. It also owns the perpetual right to the use and benefit of two 25,OOO-kilowatt gen- erating units installed in the powerhouse at Parker Dam. together with the right to utilize for the production of power slightly less than half of the water passing Parker Dam. The total of 297.500 kilowatts of a\.ailable generating capacity will provide an annual energy supply from the two plants of at least 1.675 milliun kilowatt- hours. This is sufficient energy to pump 800,000 acre-feet annually through the aqueduct lift of 1.617 feet, with ample generating capac- ity to drive eight pumps in each plant for peak pumping demands. All of the District's allocation of 35.2517 per cent of Hoover Dam firm energy must be taken or paid for by the District. However,