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<br />,4/1:o4.."c//I/2
<br />304 SAN .JUAN RIVER BASIN
<br />e~311100 McElMO (REEK BELOW CORTEl. (0
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<br />LO(ATIO~.--Ldt 31010.1b-. long l08o~8.19". in NW~NW~ seL.3S. T.36 ~.. R.18 W.. "ontezu_a COunty. HVOro10Qic
<br />Unit I~060101. on left bank 100 ft (3D .) downStream from bridge on State Highway 32. ISO tt (40 ml oownstrea~
<br />tro~ Sand (an yon. and 11.1.. (18.S km) weSt of (ortel.
<br />
<br />~"IN"GE ..1<.[...--283 Mil (133 km2).
<br />
<br />PERIOD OF RECQRO.--October Iql1 to cu!rent year.
<br />
<br />G"GE.--Water-staq~ recorder. AltituOe of gage IS 5.430 ft 11.bSS mI. from topographIc map.
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<br />RE~..RKS.--RecordS good except those for wInter per.oo. which are fair. DIversions above statIon Or BlaCk C'ke
<br />dllCh for 'friqatlon of 310 acres 11.2S km2) above statIon and ROCk (reek ditch tor irrlqatlon of 050 acre~
<br />11.b3 k.lzl belo... !5.t.ation. lo... flows are ..ainly ret.urn flow~ fro", ,rrlgated area~. water l!o Imported "'bove
<br />stat.on fro~ Dolores RIver ba!5.in for Irr.yation of about 33.000 acres 113~ k~zl above and below stat.on In
<br />MonteZUMa Irrigat.ion Dist.rict ana for ~unicipal use by city of tort.ez. A SMaIl aMount of water '5 o.vert.eo
<br />at t.Mes to Mancos River bas.n. Several observations of specific conductanCe and w"'ter te.perdture ...ere
<br />obt.aln~d and are pUb1ishea elsewnere In thls'report.
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<br />AvfRAGE OIS(HARGE.--I0 years. 38.1 ft~/s {l.OQb "~/sl. 18.0~0 acre-fttvr 13~.0 ~)/Vr).
<br />
<br />E~TREMES ~OR PERIOD OF RE(ORO.--MaxiMu" discnarge. l.130 ft)/s (bo.3 .)/51 julv 19. 1911. qaqe height. 8.Qb ft
<br />(l.131 mi. from flooo_arkS. frOM ratIng curve ekt.enoed dbove ~OO ft)/S (ll .]15). on baSIS at step-backwat.er
<br />metnoa; lIIinl.um aa.ly. O.O~ ft)/s (0.001 III]/S) Sept.. q. lQ7~.
<br />
<br />EXTREMES FOR (URRENT YEAR.--MaxiMulII di!5.cnarge. 1.080 ft ]/50 (30.0 111]/5) "' Zl30 AUg. ,... 9"'ge height.. 0.~3 t,
<br />(1.q60 1111; mlnlM",1II ddlly. 1.3 ft]/s 10.037 III). IS I Apr. ,..
<br /> 01 S(HARGE. IN (UBI( feET ... SECOND. WATER YEAIl OCTOBER 1981 TO SEPTEMBER lq8l
<br /> /liE: AN VAlUES
<br />0" OCl NO' O.C ... H' H.. ... H., .U' .Ul 'UO SE'
<br />I 12 '3 " 24 " 3' 21 b.O " 30 b' b..
<br />, 33 33 23 " Ib .., " S.8 I. ,. S! S8
<br />3 '" SO 3D " ,. S! bb 7.S I. 2b '" Sf
<br />.. "' S! .. IS 21 " 80 II ,. ,. 3. '"
<br />S ... S2 "8 24 Ib H TO 13 IT ,. 3S bS
<br />b 'b SO S! " IS 27 b. 'b Ib 33 '8 TO
<br />7 13 SS SS '0 IT 2S TO 21 18 3" 3D 8'
<br />. 12 33 .T lb 3D " b. IS 'b 36 3b ..
<br />. II 'b 30 18 3D 2S T8 10 1. 3' 37 bS
<br />10 ..8 2S 30 " '8 ,. b' 8.3 IT 32 3' lib
<br />II .., 2S ,. " 24 31 ..3 '.3 " 30 33 ".
<br />12 ,. 23 ,. 24 '0 Tl 3S 18 25 ,. 32 'b'
<br />13 'b 23 '8 " 10 '8 12 bO 'b b.. 30 243
<br />" 'b t3 'b II ,. 3T b.3 .. ,. 3T 3b J8"
<br />IS 25 23 'b to " 3T ..0 33 ,. ,. "0 IT,
<br />'A ,. 23 '8 20 ,. bb b.l bb 'b ,. J. lib
<br />17 '8 2S " 12 2S S. .... .S ,. I. 3. .b
<br />,. 2. '" 17 " " 3. 3." 2b 27 lb .S ..
<br />1. 23 23 '" '" .., 33 1.3 to 2. lb .. 'e
<br />'0 23 12 ,.. 2.. ., 33 S.' 3S J. ,. ... .b
<br />II " 23 ,. ,.. 8T Jl b.' 3S ., ,. ST 8"
<br />" 2S 23 '0 ,.. 71 to b.O " '" IS ". 71
<br />23 ,. " 18 " SO 'b II 2T '" 18 '" bb
<br />,. 23 23 Ib to .... 'b 12 to 3T IT "'3 bO
<br />" 23 23 18 l' bt 31 lB 31 3S 33 "'0 be
<br />'b '3 " 20 to 52 33 lB to " 2S 173 bb
<br />2T " 23 22 20 .., ... ,.. ,. 3S 23 ,.. 80
<br />to 23 " '" to " " ..0 to 3.. " 13' 10..
<br />,. 23 30 ,. 20 " 7.3 " 30 " e3 100
<br />JO 23 " 2.. " to 7.1 23 21 8' 1S "'
<br />31 l3 ,. 23 '0 II el b'
<br />T01Al 10..3.3 e.3 ebb bSf ..S 110Q 8td.Q 78b.9 .0. .., l~lB 32b1
<br />MEAN -... 'fOlk..... 2<"".-- - . - ,," ....:'.. -" ~<~'. -- " ..-t" 0 .... . ,- "
<br />HU tr. SO ss t. ., 71 80 bb '" 8' ." 38"
<br />HIN .., " 'b IS IS '0 1.3 S.8 lb IS to so
<br />A(.-FT 1070 1770 1120 1300 1970 2100 1710 1')60 1000 19bO ~800 b"'80
<br />CAe YO 1981 TOTAl 11538.2 MEAN 31.6 HU ",b HIN ,., A(-FT U:890
<br />wT. .. lQ82 TOTAL 140693.1 MEAN ",,0.3 HU "'3 .'N '.J A(-FT 291..0
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<br />C C 2 (' S 8
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