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<br />.ewage Challenge <br /> <br />nizoo." <br />He SAid the resen'Olr can store nu. <br />trients added by winter sewage lOads for <br />"activation" by warmer weather and <br />summer sunlight. Among the control <br />measures, besides more advanced sewage <br />treatment (at more than double present <br />plant costs) are denitrification of efflu!'n! <br />and restricted phosphate use-lrom deter- <br />gents.) <br />The health department and EPA M\'e <br />been conducting research to build a math- <br />ematical model to help solve the water <br />quality problems in the area. <br />Ken Miller. water quallty Cllntrol engl- <br />neer for the Denver Water Department. <br />said he believes the eutrophication possi. <br />bility is several }'ears away, maybe 20 <br />years. <br /> <br />. <br /> <br />"We'd like to see one big (sewage treat. <br />ment) plant in there instead of a lot of lit. <br />tle ones," Miller said, noting there's no <br />legal basis for keeping sewage emuent <br />out of the reservoir, a drinking water sup. <br />ply for Denver. <br />He said he was "C1'll1cerned" about <br />waler quality and the prospect of a ring <br />of plants around the reservoir. <br />Effort! to StIlve the problem have been <br />"a classic example of interagency cooper- <br />ation," Miller said, praising Summit <br />County, state and federal officials, He <br />wasn't at the commission when the sub. <br />jectwasdiscussed. <br />As have other officlals, Miller ObservM <br />that even the best plants take qualified <br />and well-paid operators if they're going to <br />function properly, <br /> <br /><?6';> <br />:/ <br />