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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />the users. <br /> <br />B. EXISTING RAW WATER SUPPLY <br /> <br />The existing raw water supply for Hudson is obtained by drawing <br />water from two wells owned and operated by the Town. Both of the <br />wells are considered shallow wells. The wells are each drilled into <br />valley-fill deposits.primarily consisting of sand and gravel. Chapter <br />II describes each well in detail. The Sanitary Survey Report in <br />Appendix C also describes each well as well as providing a detailed <br />analysis of the water including chemical properties. <br /> <br />A shallow well supply from the valley-fill aquifer can supply sufficient <br />quantities of water for the Town's needs. Well No. 1 located approx- <br />imately one mile northeast of Hudson has an estimated capacity of <br />300 gallons per minute. It has an l8-inch diameter casing and is <br />drilled to a depth of 62 feet. Well No.2 located approximately <br />one mile east of Hudson has an estimated capacity of 60 gallons per <br />minute. It also has an l8-inch casing and is drilled to a depth of <br />42 feet. <br /> <br />C. WATER QUALITY <br /> <br />As previously noted, the chemical and physical characteristics of the <br />water from the existing two wells is described in detail in the <br />Sanitary Survey Report included in Appendix C. Both total dissolved <br />solids and sulphates exist in quantity considerably higher than the <br />maximum recommended limits. Taste problems and laxative effects may <br />result from this type of water, as well as laundry problems and <br />precipitation in hot water heaters. Nitrates also exceed the max- <br />imum recommended limits. The hazards of high nitrate content are <br />primarily directed to infants resulting in 'infant methemoglobinemia'. <br /> <br />Although the properties of water taken by the shallow wells varies <br />somewhat depending on the area, it is typically very hard with high <br />sulfate and nitrate content, and does not meet recommended minimum <br />standards of the Colorado Department of Health. It may be assumed that <br />the quality of water in the shallow valley-fill aquifer will continue <br />to be poor due to the leaching and percolation into the alluvium of <br /> <br />IV - 4 <br />