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Dc o C.-' ~ 00' . Ul ..... SYI,JABUS ,,', ,-A comprehensive wator pcllution control prcgram is ~ '~bU$~ed that. is designed to. improve the quality of water re- '\~-ti~eell..' The program includes faur majer items: (1) A survey ,';:.,pf.;'~'tl;"e9Jl1 e.cnditions; (2) maintenance ef inventory on water uses ~',..iji!i"needsj (3) a consideraticn of w&ter quality cbjectives; and o 'J4) 'determination of detailed treatrrent 0.1' ccntrol measures. In ~:,,"~1fah Insta.nce the current status is indicated along with 11eeds ,'~oi' additio.~l' info.rmaticn, Vfaste treatment pl.a.nt constructien, 'llfi!iancing, legislaticn, incerste.te agreements o.r compacts, public educaticn, o.r resea.rch where applicable. '. Ie .' . Thesurtace cnd. ground-water resources are discussed briefly and principal water us~s, subject to. influence o.r limita- tion'by water pollution, are entrnrerated. These inClude dcmestic and industrial water supplies; agricultural use, including irri- 'gaticn <lnd live~tock watering; recreaticn, inolud.ing ba.t14ng and ".6th6l' ol,itdo.or activities; propagaticn of fish and wildlife; pCNfer development; navigaticn; and ultimate wllste disposaL Sources of pclJ.ut~;on are given, damages from pCll\ttion are discussed. and benefits derived from pcllution control acti- vities are pointed out. There are three major souroeS of pollution in these basins;' i.e., municipalities (759), industrial plants or activities (460 plUS an ind6ter~nate number of the 1,880 oil and gas fields). and natural sources' (salinity and sed,~rrl;). A total of 759 municipalities in the basins, with a total populat~on cf 3,360,000, are served by s~ver systems. Six hundred ~d forty-nine nrunicipalities serving. 2,650,000 people have waste treatment plani;s t.~ t reduce th~ tctal Il!\l.nicipal waste load by appro.ximately 50 percent. Of the 460 industrial plants (exclUsive cf oil and gas fields) which are ccnsidered significant sources cf pclluticn, 113 provide SQIIl!l type of waste tree.tment, 213 discharge wastes without tre:;.tment.c and informs:tion c01".eerning. waste treatment facilities at 134 is not at _ hand" Pate. are fragmentary concerning the strength and vOlume of industrhl wastes discharged. The disposal facilities for oil field brines are ccnsidered separately from other industrial waste disposal facilities. Data are not sufficiently refined tc permit breakdown into numbers of units discharging untreated wa.stes cr providbg adequate brine d:j.spcsal. However, there are 172 ccun- ties, cr 5~ percent of all the counties in the o~si~s, in which pe-crolin;111 a.nd/or gas are produced. '. The- effects of nature.! and industrial pollution cn the surface watsr resources of the basins are of rnajQr siGP~ficance.