Laserfiche WebLink
<br /> <br />o,~ <br />::f <br /> <br /> <br />PUBLIC HEALTH SERVICE <br /> <br />Communit <br />Cortez <br /> <br />Public <br />Population <br />Served <br />8,000 <br /> <br />Table 3 <br />Water Supplies <br /> <br />Source <br />Dolores Riverl <br /> <br />Treatment <br />Coagulati on, <br />Sedimentation, <br />Filtration, and <br />Chlorination~1 <br /> <br />Dolores <br /> <br />825 <br /> <br />None <br /> <br />Ground vlater <br />(3 wells) <br />Dolores Rive rl/ <br /> <br />Chlorination <br /> <br />Dove Creek <br /> <br />2,000 <br /> <br />Ground Watr,r <br />(2 wells)41 <br /> <br />None <br /> <br />II Irrigation canal from river. <br />g,1 Tlo'o open earthen reservoirs having 30-million-gallon aggregate <br />capacity replaced by new water filtration plant in 1960. <br />JJ Emergency use only, present wells will provide about 550 ,000 <br />gpd. <br />41 Adjacent to Dolores River. Total capacity of wells is about <br />640,000 gpd. Old infiltration gallery under Dolores River has been <br />abandoned, <br /> <br />Water Quality <br /> <br />The chemical quality of the water of the Dolores River above the <br />confluence of Disappointment Creek, located, about 40 miles below- the <br />potential McPhee Reservoir, is satisfactory for municipal and industrial <br />use, when measurable flows exist, During September 1951 a minimum flow <br />of 0.2 cfs was recorded at ~!cPhee and observation during September 1960 <br />periods of no flow existed in the Dolores River belcw McPhee, <br /> <br />The total dissolved salt concentration of the Dolores River at <br />Dolores during the period from May 1956 through September 1960 varied <br />from 79 to 311 milligrams per liter with river flow of 2,780 and 25 cfs, <br />respectively. Samples collected from the Dolores River above the mouth <br />of the San Miguel River during August and September 1960 indicated total <br />dissolved salts of 57,767 and 25,656 milligrams per liter with river <br />flo~s of 7 and 2 cfs, respectively. <br /> <br />Under the potential project plans water ,.,ould be stored at the <br />McPhee Reservoir below Dolores, Colorado. Storage of water in the res- <br />ervoir would result in a blending 01' flo,7S and tend to dilute the high <br />concentration of dissolved salts occurring during low fIOHS. This will <br />be of primary importance to potential municipal and industrial water <br />users from, and belOW, the reservoir. However, the quality of Dolores <br />River water below Disappointment Creek would not be measurably improved. <br /> <br />123 <br /> <br />