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<br />Local residents have experienced overbank flooding from Sulphur Creek on a number <br />. of occasions. For the Town of Meeker stream reach, the natural drainage path flowed <br />diagonally through the Town before it was realigned along Second Street in the early 1900's. <br />Local residents have stated that the 1896, 1918, 1937 and 1957 flood events were the result <br />of excess precipitation or thunderstorms in the hills north of the Town. <br /> <br />The soil types in the basin area vary from rock outcrops to sandy loams. The <br />hydrologic classifications are B's, C's and D's. Each sub-basin has a varying percentage of <br />soil types and classifications. In Table No.1, the curve numbers are presented for the sub- <br />basin soil types and vegetative cover conditions. Percentages were computed for each sub- <br />basin and are presented in Table 2. A weighted CN value was computed for each sub-basin. <br /> <br />RELATED HYDROLOGY STUDIES <br />A number of hydrologic studies have been performed for the Sulphur Creek Basin. <br />These studies were completed using methodologies which may have been applicable at the <br />time they were performed. The methods and input parameters used for those studies were <br />. reviewed in the CWCB's 1992 investigation. After the previous studies had been examined, <br />it was determined that a new hydrologic study was justified. <br /> <br />The following reports are known to exist for the basin. <br /> <br />o "Sulphur Creek Hydrology" dated November 21, 1969 by USDA - Soil <br />Conservation Service, Meeker Area Office. <br /> <br />o "Hydrology For Flood Plain Information Report, White River, Sulphur Creek, <br />Sanderson Heights, Meeker Colorado" dated August, 1976 by Merrick and <br />Company. <br /> <br />o "Draft Hydrology, Sulphur Creek Basin" dated April, 1977 by Merrick and <br />Company. Note: Same values published in Floodplain Information Report <br />dated June, 1978. <br /> <br />. <br /> <br />Copies of these reports are presented in the Technical Addendum for the CWCB's <br />March, 1992 Sulphur Creek hydrologic report. <br />2 <br />