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<br />~ <br /> <br />0' <br />"..... <br />,::;1 <br /> <br />c-, <br />'.' <br /> <br />of construction of each stage of the proje~t. This control system will <br />provide positive identification of fluctuations of the water table and <br />the confined water in and surrounding the project area. <br /> <br />CI <br /> <br />.. <br /> <br />Generally, observation wells for measuring ground water in both the <br />unconfined and confined aquifers will be installed at minimum intervals <br />of 3 miles along the boundary of the project area. Additionally, shallower <br />observation wells for measuring the water table will be installed between <br />the deeper, dual-completion observation wells. The extra observation <br />wells required to augment those presently in service for this purpose <br />are estimated to be: ~ <br />":,f <br /> <br />. <br /> <br />. <br /> <br />Stage Number of wells <br />1-2 22 <br />3 15 <br />4 15 <br />5 10 <br /> <br />. <br /> <br />. <br /> <br />As the water table of the unconfined aquifer and the artesian pressure <br />of the confined aquifer are monitored by observation wells, adjustments <br />to production ,well pumping rates can be made so as to not adversely <br />affect the hydrologic balance of ground waters within and outside of the <br />project area. Records of these ground water measurements will be available <br />to any public or interested persons, and the operation of the project is <br />flexible; that is, pumping from any well or group of wells will b€ <br />adjusted as warranted. <br /> <br />. <br /> <br />. <br /> <br />.. <br /> <br />(3) Pumps--Each well will be equipped with a weatherproof, <br />electrically driven, deep well turbine pump. The pump starters will be <br />equipped with a time-delay automatic switch to allow the wells to restart <br />in the event of a power outage. Automatic shutoff switches will be <br />installed to turn off the pumps if well flows should cease. Flow rate <br />meters will also be provided. Ground water in the project stages varies <br />in quality. Pumped waters will be blended to yield water that will meet <br />the quality of water terms of the Rio Grande Compact (see section B-5). <br /> <br />. <br /> <br />. <br /> <br />(4) Laterals--Well field laterals (all buried pipelines) <br />will collect and deliver the pumped ground water to the open conveyance <br />channel. Usually, small laterals will collect the discharges of several <br />wells and deliver the combined flows to the conveyance channel. These <br />laterals will total about 100 miles in length and range in capacity from <br />0.6 ft3/s to 10 ft3/s, depending on the number of wells on each lateral <br />and their combined yield. The designs of the laterals are based on <br />capacities equal to 110 percent of the normal discharges of the wells <br />tributary to the laterals. The laterals will discharge into the con- <br />veyance channel through concrete transition structures. <br /> <br />.. <br /> <br />ng <br /> <br /> <br /> <br />A-9 <br />