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� u FFApplicationson file with the County Environmental Health Department reveal that there haveits issued for repairs/additions to existing systems in the one-half mile radiusdditions were primarily for drainage pipe installed many years ago. This can bemedium number of repairs/additions and is not necessarily attributed to poor soil B. SOIL PHYSICAL CHARACTERISTICS AND ANALYTICAL TEST RESULTS The project site has level terrain; consequently, there will be no need to incorporate septic system design considerations for slopes. The United States Department of Agriculture - Soil Conservation Service (USDA-SCS) indicates the majority of the on-site soils to consist of a Manteca fine sandy loam (#196), with the extreme northeast corner of the property composed of Veritas fine sandy loam (#266). The Soil Survey information says that the Manteca fine sandy loam is moderately deep to a hardpan. The surface layer is a fine sandy loam, which is found approximately 24 inches below grade,with an indurated hardpan to 35 inches and a strongly cemented hardpan down to 54 inches. As noted on the Field Percolation Testing Report, this soil description is similar to what was encountered in the percolation test borings. The Environmental Health Department required an assessment of the subsurface soils to quantify potential nitrate impact originating from the Hayres Egg Farms. To accomplish this, two test pits were excavated with a CAT excavator and soil samples taken from the depths referenced in the charts below. These test pits provided l.)A profile of the underlying soil characteristics, 2.) Depth to groundwater, 3.) A soil sample from the capillary fringe, and 4.)A water table sample. The first test pit was dug near the south-center of APN 191-230-08 and is referenced as the "East Test Pit." Although it is unknown if this parcel was used by Hayres to store chicken manure, feed, or flush water, it is assumed that it was not since they did not own this parcel. Consequently, this parcel was chosen to represent a "background" soil profile. The second test pit was dug in the southwest corner of APN 191-230-07 and is referenced as the "West Test Pit." As noted on the USDA aerial photograph, this area contained chicken layer houses and therefore, was considered to represent the "worst-case" soil profile. The soil types encountered reveal the subsurface soil environment consists predominately of fine-grained materials (silts and clays). TEST PIT SOIL PROFILE CHARACTERISTICS EAST SOIL DESCRIPTIONS WEST SOIL DESCRIPTIONS TEST PIT TEST PIT 2 Ft Depth Gray silt,cemented,hard,moist 2 Ft Depth Black,fine sandy silty clay,moist 8 Ft Depth Brown silty clay,hard.moist 8 Ft Depth Light brown med.sandy clay,moist 12 Ft Depth Capillary Fringe,yellow-brown clay,wet 13 Ft Depth Capillary Fringe,gray silty clay,wet Water Table Brown silt, saturated Water Table Gray silty clay, saturated - 14 Ft Depth - 14 Ft Depth Chesney Consulting