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75 <br />PLATTE RIVER BASIN <br />06725500 MIDDLE BOULDER CREEK AT NEDERLAND, CO (1987) <br />LOCATION. - -Lat 39 °57'42 ", <br />long <br />105 °30'14 ", <br />in <br />NEaSEa sec. 13, <br />T.1 S., <br />R.73 W., <br />Boulder <br />County, <br />Hydrologic <br />Unit 10190005, on <br />left bank at Nederland just downstream <br />from North Beaver <br />Creek and <br />1,000 <br />ft upstream <br />from Barker Reservoir. <br />DRAINAGE AREA.- -36.2 mi'. <br />GAGE. -- Water - stage recorder in <br />timber shelter <br />and concrete <br />well <br />at a compound sharp- crested weir. <br />Graphic <br />chart is primary record. <br />RATING <br />TABLE.-- BOCMIDC007 <br />USED <br />FROM 01 -OCT <br />-1986 <br />TO 30 -SEP <br />-1987 <br />DISCHARGE, IN CFS, WATER YEAR OCTOBER <br />1986 TO SEPTEMBER 1987 <br />MEAN VALUES <br />DAY <br />OCT NOV <br />DEC <br />JAN <br />FEB <br />MAR <br />APR <br />MAY <br />JUN <br />JUL <br />AUG <br />SEP <br />1 <br />22 20 <br />9.5 <br />5.5 <br />5.5 <br />5.5 <br />7.1 <br />134 <br />151 <br />108 <br />54 <br />19 <br />2 <br />22 20 <br />9.5 <br />5.9 <br />5.5 <br />5.5 <br />7.3 <br />145 <br />162 <br />93 <br />45 <br />19 <br />3 <br />24 20 <br />9.5 <br />6.3 <br />5.7 <br />5.5 <br />7.7 <br />114 <br />154 <br />90 <br />41 <br />18 <br />4 <br />23 18 <br />9.3 <br />7.1 <br />5.7 <br />5.7 <br />8.3 <br />95 <br />162 <br />83 <br />36 <br />20 <br />5 <br />21 17 <br />9.1 <br />6.9 <br />5.9 <br />6.5 <br />8.3 <br />97 <br />176 <br />77 <br />34 <br />18 <br />6 <br />21 17 <br />9.1 <br />6.7 <br />5.7 <br />7.7 <br />8.5 <br />104 <br />185 <br />71 <br />32 <br />17 <br />7 <br />22 15 <br />9.1 <br />6.7 <br />5.7 <br />8.7 <br />8.9 <br />118 <br />187 <br />65 <br />33 <br />15 <br />8 <br />23 14 <br />9.1 <br />6.5 <br />5.9 <br />8.7 <br />10 <br />136 <br />210 <br />64 <br />31 <br />15 <br />9 <br />22 12 <br />9.0 <br />6.5 <br />5.7 <br />7.7 <br />10 <br />160 <br />272 <br />59 <br />29 <br />14 <br />10 <br />22 12 <br />9.0 <br />6.5 <br />5.5 <br />7.7 <br />11 <br />183 <br />264 <br />58 <br />29 <br />14 <br />11 <br />22 13 <br />9.0 <br />6.5 <br />5.5 <br />7.5 <br />13 <br />185 <br />220 <br />53 <br />28 <br />13 <br />12 <br />21 14 <br />8.5 <br />6.7 <br />5.5 <br />7.9 <br />14 <br />180 <br />206 <br />72 <br />28 <br />13 <br />13 <br />18 15 <br />8.5 <br />6.7 <br />5.5 <br />7.7 <br />14 <br />220 <br />199 <br />66 <br />27 <br />12 <br />14 <br />21 16 <br />8.3 <br />6.5 <br />5.5 <br />7.7 <br />12 <br />229 <br />180 <br />57 <br />26 <br />14 <br />15 <br />20 15 <br />8.1 <br />6.1 <br />5.5 <br />7.5 <br />15 <br />244 <br />167 <br />50 <br />24 <br />20 <br />16 <br />20 15 <br />7.9 <br />5.9 <br />5.5 <br />7.3 <br />24 <br />279 <br />165 <br />51 <br />24 <br />21 <br />17 <br />19 14 <br />7.7 <br />5.9 <br />5.5 <br />7.9 <br />32 <br />289 <br />151 <br />53 <br />22 <br />28 <br />18 <br />17 14 <br />6.9 <br />5.7 <br />5.5 <br />7.7 <br />39 <br />274 <br />143 <br />57 <br />20 <br />24 <br />19 <br />18 14 <br />6.9 <br />5.7 <br />5.5 <br />7.5 <br />44 <br />234 <br />143 <br />50 <br />18 <br />18 <br />20 <br />24 14 <br />6.7 <br />5.0 <br />5.5 <br />7.5 <br />45 <br />217 <br />136 <br />45 <br />17 <br />16 <br />21 <br />22 14 <br />6.3 <br />5.0 <br />5.5 <br />7.5 <br />41 <br />194 <br />128 <br />43 <br />18 <br />15 <br />22 <br />18 13 <br />5.9 <br />4.9 <br />5.5 <br />7.3 <br />41 <br />167 <br />124 <br />46 <br />26 <br />14 <br />23 <br />24 12 <br />5.7 <br />4.7 <br />5.1 <br />7.3 <br />51 <br />165 <br />120 <br />47 <br />27 <br />14 <br />24 <br />23 11 <br />6.3 <br />5.3 <br />5.1 <br />7.3 <br />66 <br />169 <br />110 <br />44 <br />34 <br />13 <br />25 <br />20 11 <br />6.1 <br />5.5 <br />4.9 <br />7.3 <br />78 <br />147 <br />106 <br />44 <br />33 <br />12 <br />26 <br />20 10 <br />5.9 <br />5.7 <br />5.0 <br />7.3 <br />82 <br />139 <br />108 <br />43 <br />28 <br />13 <br />27 <br />20 11 <br />5.9 <br />5.7 <br />5.0 <br />7.3 <br />80 <br />128 <br />102 <br />45 <br />26 <br />12 <br />28 <br />19 10 <br />6.3 <br />5.9 <br />5.0 <br />7.3 <br />85 <br />112 <br />97 <br />50 <br />25 <br />12 <br />29 <br />18 10 <br />6.1 <br />5.9 <br />- -- <br />7.1 <br />110 <br />108 <br />116 <br />48 <br />25 <br />12 <br />30 <br />18 9.8 <br />6.1 <br />5.7 <br />- -- <br />7.1 <br />112 <br />108 <br />112 <br />56 <br />22 <br />12 <br />31 <br />20 - -- <br />5.9 <br />5.5 <br />- -- <br />7.1 <br />- -- <br />120 <br />- -- <br />66 <br />20 <br />- -- <br />TOTAL <br />644 420.8 <br />237.2 <br />185.1 <br />152.9 <br />225.3 <br />1085.1 <br />5194 <br />4756 <br />1854 <br />882 <br />477 <br />MEAN <br />20.8 14.0 <br />7.65 <br />5.97 <br />5.46 <br />7.27 <br />36.2 <br />168 <br />159 <br />59.8 <br />28.5 <br />15.9 <br />AC -FT <br />1280 835 <br />470 <br />367 <br />303 <br />447 <br />2150 <br />10300 <br />9430 <br />3680 <br />1750 <br />946 <br />MAX <br />24 20 <br />9.5 <br />7.1 <br />5.9 <br />8.7 <br />112 <br />289 <br />272 <br />108 <br />54 <br />28 <br />MIN <br />17 9.8 <br />5.7 <br />4.7 <br />4.9 <br />5.5 <br />7.1 <br />95 <br />97 <br />43 <br />17 <br />12 <br />CAL YR <br />1986 TOTAL 22128.8 <br />MEAN <br />60.6 <br />MAX <br />346 <br />MIN <br />5.1 AC <br />-FT 43890 <br />WTR YR <br />1987 TOTAL 16113.4 <br />MEAN <br />44.1 <br />MAX <br />289 <br />MIN <br />4.7 AC <br />-FT 31960 <br />300 <br />250 <br />200 <br />150 <br />100 <br />50 <br />0 <br />Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep <br />