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-� c <br /> 4.0 Results <br /> Desktop and field survey results are presented in the following discussion. <br /> 4.1 Precipitation <br /> The NOAA Agricultural Applied Climate Information System was used to obtain historical and <br /> antecedent rainfall data for the USDA NRCS Climate Analyst for Wetlands Tables (WETS) and <br /> NOAA Regional Climate Centers. Historical rainfall records from the Greeley UNC, Colorado <br /> weather station were used to determine the normality of rainfall using the Direct Antecedent <br /> Rainfall Evaluation Method (NOAA 2023). Precipitation data from the Greeley UNC, Colorado <br /> weather station was used to determine the measured rainfall for the three months prior to and <br /> during the survey period. Table 1 provides a rainfall summary for the Study Area for the October <br /> survey. Based on these calculations, this region of Weld County was determined to be normal for <br /> the survey period. <br /> Table 1. Rainfall Summary for Weld County, Colorado <br /> WETS Rainfall Evaluation Month: October 2023 <br /> Percentile (inches) <br /> Prior Month Measured <br /> 30th 70th Rainfall Condition' Month Score' <br /> (inches) Weightb <br /> Three months prior to October 16, 2023, Survey Date <br /> 1St September 0.53 1.33 0.28 1 3 3 <br /> 2nd August 0.69 1.66 1.78 3 2 6 <br /> 3rd July 0.75 1.85 3.07 3 1 3 <br /> Sum 5.13 12 <br /> Description d Normal <br /> a Condition values are 1 for<30th percentile, 2 for between 30th and 70th percentiles, and 3 for>70th percentile. <br /> b Month Weight is 3 for the most recent month,2 for the prior month,and so on. <br /> c Score is the product of the Condition and Month Weight values. <br /> d Drier than normal (sum of score=6-9), normal (sum of score= 10-14),wetter than normal (sum of score= 15-18). <br /> Source: NOAA 2023. <br /> 4.2 Land Use and Vegetation <br /> The Study Area topography is a mosaic of flat to small rolling hills. The elevation of the Study <br /> Area ranges from 4600 feet above mean sea level (amsl) to 4790 feet amsl.The Study Area is <br /> located within the High Plains Level Ill Ecoregion, classified further as Flat to Rolling Plains within <br /> that Ecoregion (Chapman et al 2006). The High Plains Ecoregion is characterized by rolling plains <br /> and grasslands situated at a relatively high elevation. Native vegetation in this Ecoregion consists <br /> of short-grass or mixed-grass prairie species, scrub, and some sagebrush steppe. Consistent with <br /> the aerial imagery, approximately 3,760 acres (approximately 93 percent)of land cover within the <br /> Study Area is classified as grassland herbaceous by the National Land Cover Database (NLCD). <br /> Approximately 230 acres (6 percent) are classified as shrub/scrub. The remaining approximately <br /> Colorado Sand Company LLC—Kersey Mine December 6; 2023 <br /> Wetland and Waterbody Delineation Report 4 <br />