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338 • • GREEN RI VFR BASIN • •
<br />09306242 COPRAL GULCH HEAq PANGELY, CO
<br />lOCA 710 N.--La[ 79°55'17", long 108°28'20", in SE yxgy sec.35, i.l S., R.99 N., qfo Blanco County, Hydrologic
<br />Unit 14050006, on left bank 5 ft downstream from Box elder [reek, and 3.5 ml upstream from confluence with Stake
<br />Springs Draw, and 2l mi southeast of Rangely.
<br />DRAINAGE AREA.--Jl.fi mi°.
<br />YAiEP-DISCHARGE RECORDS
<br />PE RI00 OF RECORD.--March 1977 to current year.
<br />GAGE.--Mater-stage recorder. Concrete control since July 20, 1974, Elevation of gage is 6,500 ft above National
<br />Geodetic Vertical Datum of 1929, from [opo9ra phic map.
<br />REMARKS.--xo estimated daily discharges. Records good e. cept for estimated dally discharge^, which are poor. No
<br />diversions upstream from station.
<br />AVERAGE DISC Hp RGE.--17 years, 2.79 ft'/s; 1,770 acre-ft/yr.
<br />CXIRENE2 fOR PERIOD OF RECORD.--Na..mum discharge, 1,180 ft'/s, Aug, le, 1984, gage heignt, 6.12 ft, froe rating
<br />curve extend e0 above 70 /['/s, on basis of slope-area measurements at gage heights 3.09 ft, 4.08 ft, and
<br />6.12 ft; minimum doily, 0.06 fta/s, Apr. 10 -10, 1914.
<br />[xT REMES FOR CURRENT YEAR.--Na. im wn discharge, 2.2 f[s/s at 2400 Aug. 7, gage height. 1.60 ft, from high-water
<br />mark: minimum daily, 0.16 fLx/s, Aug. 10, I1.
<br /> DISCHARGE, CUBIC FEET PEfl SECOND, NA1ER YEPq OCTOBER 1990 TO SE PiEM BER 1991
<br /> DAILY MEAN VALU ES
<br />DAY OCi NOV DEC JAN FEB MAR APR MAY JUN 3Ul 0.UG SEP
<br />t .JO .70 .72 .34 .76 .54 .43 .30 .32 .27 .28 .30
<br />2 .29 .30 .32 .34 .36 .67 .62 .2B .J2 .27 .29 .30
<br />3 .JO .70 .72 .76 .36 .5l .45 .29 .J4 .27 .32 .30
<br />4 .70 .3l .37 .76 .J6 .86 .37 .28 .7J .28 .47 .30
<br />5 .30 .72 .3a .76 .36 .7] .40 .29 .JI .2B .32 .3l
<br />6 .70 .32 .3a .36 .36 .aJ .dJ .20 .3l .28 .d0 .JJ
<br />7 ,71 .30 .3a .J6 .J6 .dl .37 .28 .JO .28 .Jl .dl
<br />0 .l7 .79 .73 .76 .J6 .40 .36 .28 .JO .JO .70 .41
<br />9 .7l .29 .72 .36 .75 .40 .35 .28 .JO .70 .29 .7/
<br />10 .31 .29 .72 .76 ,76 .d0 .37 .28 .29 .3l .26 .36
<br />ll .32 .29 .73 .36 .36 .40 .36 .29 .29 .30 .26 .34
<br />12 .32 .29 .34 .36 .36 .39 .76 .30 .29 .70 .27 .37
<br />13 .31 .29 .34 .76 .J6 .39 .75 .70 .29 .70 .27 .77
<br />l4 .29 .29 .7d .76 .76 .78 .35 .30 .JO .30 .28 .36
<br />IS .29 .29 .75 .36 .37 .78 .34 .30 .29 .30 .29 .7d
<br />I6 .29 .29 .36 .36 .78 .38 .74 .32 .29 .28 .32 .33
<br />17 .JO .70 .36 .J6 .48 .38 .34 .30 .29 ,29 .70 .J2
<br />l8 .79 .70 .77 .36 .45 .38 .34 .30 .28 .28 .70 .32
<br />19 .J2 .70 .38 .74 .d0 .d7 .34 .3D .20 ,28 .29 .72
<br />20 .7l .29 .78 .74 .78 .d0 .77 .30 .28 ,28 .30 .70
<br />2l .30 .30 .36 .34 .78 .38 .33 .30 .IB ,28 .29 .70
<br />22 .71 ,7D .34 .ld .42 .JB .33 .30 .2B ,2) .29 .JO
<br />23 .70 .70 .75 .34 .52 .38 .72 .31 .28 ,27 .29 .JI
<br />2d ,30 .70 .J4 .34 .45 .43 .32 .30 .28 ,27 .29 .3l
<br />25 .30 .30 .74 .34 .47 .40 .32 .30 .70 .28 .79 .29
<br />26 .JO .JO .3a .35 .47 .d0 .32 .30 .28 ,28 .70 .27
<br />27 .70 .7l .J4 .J6 .43 .40 .72 .29 .28 ,28 .30 .27
<br />28 .30 .32 .3a .76 .53 .39 .31 .30 .28 .21 ,29 .27
<br />29 .]0 .72 .J4 .36 --- .70 .30 .29 .27 ,27 .29 .27
<br />70 .JO .7Z .7d ,7fi --- .38 .7l .29 .28 .21 .29 .29
<br />31 .30 --- .3d .76 --- .J8 --- .JO --- .27 .30 ---
<br />TOTAL 9.79 9.02 10.60 10.96 1L.08 13.70 10.78 9.13 8.79 8.1fi 9.36 9.66
<br />MEAN ,70 .30 .J4 .35 .d0 .44 .36 .29 .29 .28 .70 .32
<br />MAX .32 .72 .38 .76 .57 .86 .62 .32 .34 ,3l .47 .47
<br />MIN .29 .29 .32 .74 ,35 .78 .30 .20 .27 .2T .26 .27
<br />AG fi l9 le 21 22 22 27 2L l8 l7 I7 19 19
<br />CPL YA 1990 TDTAt 153. 81 MEAN ./2 MAX 1. 5 MIN .29 AC-fi 305
<br />MiR Yq 1991 i0i4L 121. 77 MEAN ,33 NAX . g6 MIN ,26 AC-FT 240
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