Pacific municipalities . 00 inhabitants or larger to obtain an adequatedomestic and fire service at a moderate outlay in capital expenditure (well withintheir legal bonding capacities) and nominal upkeep charge. PACIFIC MUNICIPALITIES 239 The sources of water suppl\- at Colusa are two artesian wells 280 feet in depth,from which the water for domestic use is drawn, with auxiliary suction pipes laidto the river at such levels as to control the lowest possible water level. The water for domestic service is pumped direct to a 100,000 gallon capacityhemispherical-bottom Storage Tank, mounted on a 9
Pacific municipalities . 00 inhabitants or larger to obtain an adequatedomestic and fire service at a moderate outlay in capital expenditure (well withintheir legal bonding capacities) and nominal upkeep charge. PACIFIC MUNICIPALITIES 239 The sources of water suppl\- at Colusa are two artesian wells 280 feet in depth,from which the water for domestic use is drawn, with auxiliary suction pipes laidto the river at such levels as to control the lowest possible water level. The water for domestic service is pumped direct to a 100,000 gallon capacityhemispherical-bottom Storage Tank, mounted on a 97 ft. structural steel tower,but passed directly into the street mains when the fire pumps are in use. The general arrangement of such an installation, the design and selection ofthe units best suited for continuous or emergency operation and efficiency, as wellas the first cost of the plant, at the same time observing the requirements of theBoard of Fire Underwriters of the Pacific Coast, are factors which call for very. careful consideration. To that end, the engineering firm of Fredk. C. Roberts & Co., of San Fran-cisco, have undertaken to design and standardize such installations calculated tomeet the requirements of towns varying in population from 1000 to 10,000, with aview to minimizing the first cost thereof (the expense of manufacture and erection)and bringing within the financial limits of the smaller towns efficient plant for fireprotection and domestic sefvace. A brief description of the plants erected at Co-lusa will give a ver\ good idea of the arrangement employed in towns within theradius of electrical power distribution of the larger power companies. The machinery installation consists of two 4-stage turbine fire pumps and 2^^ PACIFIC MUNICIPALITIES motor and a 2-stage pump and motor for domestic service, both units being di-rectly connected to motors on a continuous line shaft, each being belted back to a100 H P. multi-cvlinder gas engine which furnishes auxil
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