Laserfiche WebLink
50 - <br />40 <br />Estimated Stream Flow on Coal Creek <br />20 - <br />10 <br />0 <br />1 1 <br />Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec <br />month <br />Table 2 shows that the summer flow recommendation of 39 cfs is available at least 50% of the <br />time from April 1st to July 14th. The winter flow recommendation of 21 cfs is available at least <br />50% of the time from February 15th to March 31St and from July 15th to November 14th. Based <br />on water availability, the winter flow was further reduced to 18 cfs from November 15th to <br />February 14th <br />Precipitation Data <br />Staff reviewed a local precipitation data set from 1 site located around the Coal Creek Drainage <br />(see Precipitation Data in Appendix C). Table 3 shows the water year and the percent of average <br />precipitation recorded at each site. It is staff's opinion that the 5 years of stream -flow data <br />analyzed is representative of slightly below average water - years. <br />Table 3: Precipitation Data as a percentage of Average <br />Year <br />Elevation = 5690 <br />Lat 38 52 00 <br />Long 107 35 00 <br />Paonia 1SW <br />1977 <br />63% <br />1978 <br />No data <br />1979 <br />98% <br />1980 <br />109% <br />1981 <br />105% <br />Average <br />94% <br />Table 3 shows that the 5 years of stream flow data analyzed is representative of slightly below <br />average water years. <br />-5 <br />