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<br />WA1_R RESOURCES RE:./IEW
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<br />UNITED STATES DEPARTMENT OF THE INTERIOR
<br />GEOLOGICAL SURVEY
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<br />,.. COLLASORU'O" ...iT..
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<br />ANNUAL SUMMARY. WATER YEAR 19S8
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<br />R ESq]jl6q:~O 1958
<br />COLO. 11AIlR
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<br />
<br />CANADA-DEPARTMENT OF NORTHERN AFFAIRS AND NATIONAL
<br />WATER RESOURCES BRANCH
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<br />EXPLANATION ~ ,-\--, ~&20~;; ~ ytJ:/
<br />Numbena.einde.esalstreorn- "~~W~,4 I!$ lee
<br />flow la. the ~riadal key 9lI9,nljj SlatiOfls" ' /'_ ~~/
<br />campul.d as pelc.nt al med,an \midvaluoJ ", \ ~'/J~
<br />lIowIO'I".standa.dperiad 192 -4Sue~t '
<br />asshawnbyt.olics. Ove,scOl"uandunderscOl"es '\
<br />show new mo"mum ond ""ni"""" ind...s. ....,...c;.
<br />I..'ely.lo.tt.epe.iod. Pa"..nssl1owi~quo'lil.sin "
<br />whil;hin~.nltfll...elalg.lyschemo'ic.
<br />..,.,..' S!leomllow def'cienli. ~/ // St.eamflow eocn~lv'l.
<br />........ind..amo!'9lownt~S '////.indexCIrnOnQhiljjhesl S
<br />percental,eeordlOl"lheplfiod. p....cenlol,Ko,dlllor._p..iod.
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<br />P'ejlllor.cI by U. So. GooloQieol Su.vey OcT. 17, 1958
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<br />STREAMFLOW INDEXES FOR THE WATER YEAR ENOED SEPT, 30. 19S8
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<br />WERE \\'ERE FE'.\.' OUTSTANDI!l:G HYDROl.OGIC EVEI'OTS DURING WATER YEAR 19:;8. THE DROUGHT
<br />IN THE NORTIlEAST WAS GONE BY DECEMBER A:"JD ALTHOUGH MANY HIGH AND DA:\.lAGlNG FLOODS
<br />OCCURRED THEY WERE MOSTLY IN STREAMS OF LESS THAN 10,OOO:'Q ~lILES DRAINAGE AREA.
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<br />RUNOFF OF ALL MAJOR CONTI:"JE:-ITAl. RIVERS WAS ABOVE ~lEDlAN EXCEPT FOR ST. LAWRENCE
<br />RIVER WHICl-I WAS ONLY SLIGHTLY BEl.OW :\IEDlAN. A!\':'IiUAL RUNOFF WAS IN THE :\IEDIAl\" RANGE FOR
<br />ABOUT THREE,QUARTERS OF Tl-IE UNITED STA TES .-\NO MOST OF CANADA,
<br />
<br />GROUND-WATER LEVELS DURING THE YEAR WERE ABOUT AVERAGE OR ABOVE IN Tl-IE NORTl-I-
<br />EASTERN AND SOUTHEASTERN STATES AND BELOW AVERAGE ELSEWl-IERE EXCEPT IN PARTS OF THE
<br />MIDCONTIr\ENT REGION, NOTABLY IN THE EDWARDS LI~ESTONE Wl-IERE THE LEVELS ROSE FRO:\I .AT
<br />OR NEAR RECORD-LOW STAGES TO AT OR NEAR RECORD-HIGH STAGr-~S,
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