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<br />wh Ich I nc ludes the rElmtd oder of the bas I n I n Co lortldo; and (4) the <br /> <br />WyomIng nondeslgneted eree. which Includes the entIre South Piette River <br /> <br /> <br />basin In Wyoming. Subsequent to this rul lng, further Metro Denver Study <br /> <br /> <br />weter quality pltlnnlng efforts were direcTed towerds supplsllI3'nt/ng the <br /> <br />208 stud I es. These suppl ementa I stud I es I nc I uded deve I opment of waste- <br /> <br />water ~nagement pltlns for Douglas County, Colortldo. and Cheyenne. <br /> <br />Wyoming, 8nd a study of mine drelnage problems end solutIons 10r GIlpin. <br /> <br />Cletlr Creek, and Park CountIes 'n Colorado. The results of these supple- <br /> <br /> <br />mentel studIes as wet I tiS the Initial studfes conducted by the Corps as <br /> <br /> <br />a part of the Metro Denver Study have been Incorporated rnto the 208 <br /> <br /> <br />plans. The 208 plans htllve now been completed or tlIre nearJng completion <br /> <br />end will <br /> <br />be <br /> <br />Implerrented ltt the loctll, reglontlll. and Stltte levels of <br /> <br />government. <br /> <br />The principal water qUtlIl Ity problems of Dougltlls County and Cheyenne <br /> <br />tlre I nadequete treatment of mun Ie J pa I and I ndustr I a I w8stes and storm <br /> <br />run01 f. Several muo Ic rpa I w8stewater management atteroat rves based on <br /> <br />vltrlous degrees of regional IZ8tJon and levels of tretltmant (both conven- <br /> <br />tlon81 and lend treatment) were developed 10r each aree end theIr costs. <br /> <br />advtlInttllges. end disadvantages were evel utlted. Studies for these erees <br /> <br /> <br />elso IdentIfied management practfces to reduce weter pollution and flood <br /> <br /> <br />problems resulting from storm runoff and zoning regl!latlons and sub- <br /> <br />dIvision epprov81 rnechtmlsms to Implement them. <br /> <br />Stud I es for G II pin, <br /> <br />Clear Creek, t.lnd Pl!l"'k CountJ es I dentlf f ed metn egement pract Ices to con- <br /> <br /> <br />trol pollution of strelll1s In the upper Clear Creek basIn resultIng from <br /> <br /> <br />mIne draJnage. Management practices eppearlng most applicable 'neluded <br /> <br /> <br />hydr8ulfc seals or slurry trenching to block dJscharge poInts. storage <br /> <br />of waste dlscherges for release when the stream can best assimIlate It. <br />and treatment of wtllste discharges. <br /> <br />4 <br /> <br />~ ---- --- ~-.---.- -- - ----- <br /> <br />;'.' <br /> <br />;.'.... <br />". <br /> <br />:~'" <br />