Orange County NC Website
<br /> 3 <br /> <br />The USGS study for well yields was based upon <br />a county-wide inventory of 649 wells that are <br />completed in in nine hydrogeologic units in the <br />county. Estimates of ground-water availability <br />were based upon the well completion records for <br />these wells that provide information on the drilled <br />depth, reported yields, and depths to water levels. <br /> <br />The USGS study concluded the following: <br /> <br />“ The typical well in Orange County has an <br />average depth of 208 feet, an average casing <br />length of 53.6 feet, a static water level of 26.6 <br />feet, a yield of 17.6 gallons per minute, and a well <br />casing diameter of 6.25 inches. The saturated <br />thickness of the regolith averages 27.0 feet and <br />the yield per foot of total well depth averages <br />0.119 gallon per minute per foot. Well yields in <br />Orange County show little correlation with <br />topographic or hydrogeologic setting.” <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Figure 3.-- Hydrogeologic Units of Orange County. <br />Property Wells <br />Information on the two wells on the property is shown in Table 1 was provided by Justin Chandler. The <br />locations are based upon aerial imagery shown in Figure 1 and ground elevations are from intersecting <br />the well locations with the 3-ft DEM1. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Table 1. Property Well Information. <br />Drilled Casing <br />Pumping <br />Depth <br />Static <br />Depth <br />Static <br />Elevation Yield <br />NAD83 Ft NAD83 Ft NAVD88 Ft Feet Feet Feet Feet NAVD88 Ft GPM <br />WW-1 2012780 904816 614 230 63 125 32 582 20 <br />WW-2 2012680 904608 613 240 63 120 34 579 30 <br />Depths Water Levels <br />Well ID <br />East North <br />Ground <br />Elevation <br />123