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<br />;?" ....~ <br />~~.~ 4 :j <br /> <br />I <br />r <br /> <br />:':<J"., <br /> <br />~ <br />N <br />.,t;:.. <br />c.J1 <br /> <br />" <br /> <br />" <br /> <br />,,' <br /> <br />'0 <br />, . <br /> <br />presentecl in Table 6. The major point sources of the UCRB are listed in <br />Table A-Z in Appendix A., , <br /> <br />TABLE 6. POINT SOURCE CONTRIBUTIONS IN THE' UPPER COLORADO RIVER llASIN. <br /> <br />Drainage <br /> <br />ha-m <br /> <br />Salt <br />Contribution <br />Mgn1! yr <br /> <br />Grand Division <br /> <br />5,060 <br /> <br />1 <br />437,4002 <br />516,000 <br /> <br />1 <br />44,1002 <br />131,9.50 <br /> <br />1 <br />9,980, <br />10,400~ <br /> <br />Green Division <br /> <br />1,9.60 <br /> <br />. . <br />. San Juan l!Iivis,ion <br /> <br />270 <br /> <br />TOTAL <br /> <br />.7,290 <br /> <br />1 <br />49l,5002 <br />658,5003 <br />804,900 <br /> <br />1 <br />Iorns et.al. (1965) <br /> <br /> <br />2 <br />Hagan (1971) <br />3iPA (1971) <br /> <br />TheEPA (1971) calculated that the totsl contribution of point sources in <br />. the ,Lower BaS1nis an additional 64S;900 Mgm/yr which is about 15 percent of <br />.tne'tl!ltal salt load' hom the Lo"Wer Basin. :The USDI,BR (1979a)es.timates the <br />poiitt source contdbution in the Lo"Wer Basin at 687,OOOMgm{yr of.dbsolved <br />solicls., Thus, point eou~ces account for about .21 percent .of the total salt <br />..lesving the Co1:orado.River Basin 'and .isnot a minor problem. <br /> <br />"."'):here ere"ab.out,..four point'.aourciea inthe.\J,p.p.erColp,raclo River Basin that <br />might be coat-effective to treet., ParacloxValley, although not.~echnica'Hy"a <br />p9i""t,SflUrce, isprobahlY the mO.lftcost:-effactive at: this time if the by-psss <br />alternative is aclopted. The second most fsvorable is probably 't:he . thermal- <br />minaral springs on the Colorado River near.Glenwood Springs sncl Dotsero, <br />Colorado. Cryst:al Geyeer, neerGreenRiver, Utah, is an abandonecl oil well <br />ancl doea not appear to be cost-effective at this time. <br /> <br />. .', ~':";,."" '.' . ';. ,~'., . <br /> <br />The salinity contribution of Meeker Dome, which is believed to result <br />primarily from old abancloned oil wells which were improperly eappecl, is <br />presently being investigated to c1etermine a suitabletre&tment for reclucing <br /> <br />. <br /> <br />68 <br />