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<br />," ,. ,. ~ <br />.~ ...'-a <br />OPERATION <br /> <br />, ' <br /> <br />AND ~lAINTENANCE <br /> <br />23 <br /> <br />C(tna.ls, con.duU.r:r, siphon.~, tunnels, 'i'ese1'voirs <br /> <br />Normal operation and maintenance activities only were required <br />for main aqueduct canals, conduits, siphons, tunnels, and reser- <br />voirs, during the fiscal )'ear. There were no severe storms other <br />than occasional days of high wind which moved considerable quan- <br />tities of Now sand into sections of the open lined canal. Maneuvers <br />along and across the aqueduct of undisclosed thousands of soldiers <br />of the U. S. Army. being trained in the use of mechanized equip- <br />ment and methods of desert warfare, also loosened material for <br />more morlerate winds to carry and added to the quantity of sand <br />to be removed from the sand traps. Rainfall for the season was <br />5.36 inches at Gene, 2.48 inches at Iron !\fountain, and 4.27 inches <br />at Hayfield. Comparative figures for the previous season were <br />:1.00, 3.29, and ;3.23 inches, respectively. <br />The regular operation and maintenance crew on this portion of <br />the main aqueduct a\'eragerl six men under the direction of a gen- <br />eral foreman who reports to the District's chief operation and <br />maintenance engineer. Their work consisted of frequent patrols <br />of the open lined canal, with daily patrol,," necessary of sections <br />used to store water for the Army; inspection and sampling of <br />stored water; spot application of copper ~u]phate for algae con- <br />trol; and J'emoval of blow sand and debris from sand traps, siphon <br />transitions, and canal. In addition to work on the waterway itself, <br />the maintenance force performed many other related duties. It <br />repaired District roads and highways, kept motor vehicles and <br />equipment in good operating condition. and hauled necessary <br />supplie~ for aqueduct maintenance. <br />When the Hayfield reservoir area was fenced in 1938, no fence <br />was built along the lined canal within the enclosure. Vegetation <br />blown into the unfenced canal has been a constant source of ex- <br />pense. During the winter months. as men could be spared from <br />e:-isential aqueduct work, some 4.5 miles of the woven wire fence <br />around the reservoir were taken out, 21,348 feet being reinstalled <br />along the south side of the canal easterly from the Hayfield plant. <br />One-half mile of fence material was delivered to Corona del Mar <br />for u:-;p in fencing the new reservoir area at that point. The main- <br />tenance crews also salvaged a cottage at Eagle Mountain to be <br />rebuilt for emergency guard quarters at the Santa Ana River cross- <br />ing of the upper feeder pipe line, and a second cottage at Hayfield <br />to be reerected at the Corona del !\far reservoir for use of the <br />