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REP46860
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REP46860
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Last modified
8/25/2016 12:50:14 AM
Creation date
11/27/2007 11:26:03 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981041
IBM Index Class Name
Report
Doc Date
3/10/1986
Doc Name
POWDERHORN COAL CO RAPID AND COTTONWOOD CREEKS SURFACE WATER MONITORING REPORTS 1983-1985
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
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~ ~ ~ <br /> t <br /> excep <br />for several small discontinuities and a period at the begin- <br />' ning of November that shoxed no fluctuations, During this July- <br /> December period the mean daily flows were seldom over 1.0 cfs and <br />' were never aver 2.0 cfs. The lsoken record for the month of March <br /> also indicates flows in this range. <br /> h <br />i <br /> e max <br />T <br />mum instantaneous flow recorded at this station in 1985 <br />' uas 1.93 cfs. The lowest flow recorded xas 0.30 cfs, <br /> ~'As noted elsewhere in this report the record for August 2 to <br />' August 16 seems to be slightly high when compared to periods before <br />N~ <br /> and after this time, However, no reason could be found to discount <br /> <br /> the values. <br />' The only time that the 1985 recor3 coincides with the 1984 <br />record was during late September and early October. The mean daily <br />' flows were very similar for the two years. <br />`~_ <br />1 <br />1 <br /> <br />t <br />1 <br />1 <br /> <br /> <br />s~~res-o3 <br />Two main periods of record exist for this station in 1985. <br />The first period, May 16 to June 13, began xith mean daily flows <br />greater than the 8.80 cfs capacity of a 9-inch Parshall flume. The <br />mean daily flows decreased from this point to a value of 6.16 cfs <br />on June 13 when the record ended. <br />The second period of record runs from August 16 to December 28, <br />however, numerous discontinuities occurred during this time. :lean <br />daily flows during August and September xere seldom greater than <br />0.50 cfs. Inter in the year the mean daily flows were somewhat <br />higher, about 0.80 cfs. The record ends on December 13 when the <br />stilling well became fro2en. <br /> <br />
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