Orange County NC Website
Browse       Search
~S <br />Orange County 'Irigon Project No.036.00-01 GD <br />Hillsborou¢lr I.andf'ill Site July 19, 2000 <br />the site is occupied by a ridge that runs east and west, and slopes to the north and south. The site is <br />bisected by a stream that nms east and west. The southern portion of the site is also occupied by <br />ridges and valleys with moderate relieG The elevation of the site varies from 620 to 680 feet above <br />mean sea level. With the exception of minor ponded water on the northeastern portion of the site, <br />no surface impoundments, lagoons, or holding ponds were observed on the property, Surface <br />water appears to flow to the central portion of the site and then drains to the east via a small <br />creek. <br />3.2 SUBSURTACI; CONDITIONS <br />According to the 1985 Geologic Map of North Cazolina, the site is located within the Cazolina Slate <br />Belt of the Piedmont Physiographic Province. Surficial soils in the vicinity of the subject property <br />consist of residua] soils derived from chemical weathering of the local bedrock. Local bedrock <br />consists of medium to dark green metavolcanic rock. <br />According to the Soil Sruvey Gf Orange CGUnly, North Carolina, the predominant soil types are <br />in the Geotgeville and Herndon soil series. These well-drained soils are typically found on <br />uplands of the area, and are typically dark yellowish brown silt loam <br />The generalized subsurface conditions, as interpolated from our borings, are described below. <br />For descriptions and general stratification at a particular boring location, the respective Test <br />Boring Record should be reviewed (see Appendix C). Subsurface conditions between boring <br />locations or elsewhere on the site may vary, and undetected subsurface anomalies may exist <br />between boring locativns, <br />Subsurface conditions across the site varied greatly from boring to boring, Generally, the borings <br />encountered FILL soils overlying natural residual soils or partially weathered rock (PWR) to <br />boring tenrrination depths ranging from 4.3 to 10.0 feet below existing ground surface. The <br />existing FILL soils were generally a sandy clay (CL) to sandy silt (ML); approximately 20% of <br />the borings also contained refuse, rubble or debris, The natural residual soils were generally <br />TRLGONENGINEER/NGCONSULT.INTS, INC Page 3 <br />