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The site is bound to the north by Highway 120 and to the south by railroad tracks and open pasture land. To the west is another trucking company,Food Express, Inc. and an almond orchard. To the east is open farmland and very low density housing. According to San Joaquin County Environmental Health Department records, there have been no recorded cases of septic system modifications occurring in the immediate study area. This is due to the very low density housing in the study area, along with the sandy soil structure of the surrounding soil. [3] PROPOSED DEVELOPMENT OF THE SUBJECT SITE The subject parcel is proposed to be developed into a trucking yard with a new building. Most of the Company's trucks will be on the road or parked at the driver's residences. The subject facility will be primarily for repair work and administration. The building will have a sewage disposal system and a domestic water well which must be in compliance with San Joaquin County Codes. [4] PROPOSED SEPTIC TANK SITING,USAGE AND NITRATE LOADING CALCS. The sandy soil structure is conducive for favorable percolation as evidenced by the attached percolation rate. The septic tank servicing the subject building is to be 1600 gallons in size with a tightline extending 80-feet to the leachfield. There is to be no parking, structures or storage over the leachfield area. There will be a 100% replacement area as required for commercial development in the event of leachline failure. The septic system and domestic water well must conform to all of the "distance" separation requirements from applicable objects as stated in the County Codes. From the following calculations,the leachline length is determined: 1600 gal tank X .200 Soil Factor = 320 feet of leachline. The leachfield may be structured two different ways based upon this calculation. There may be three - 100 foot sections of leachline, or two - 60 foot sections and two sumps at the ends of these two leachlines. These sumps should have the dimensions of four feet wide, twelve feet long and six feet deep. r I ' It is being proposed that four people, on average, will occupy the structure during various hours of I the days of the week. Raw sewage flushed into a septic tank usually contains very little nitrate. Approximately '/a to 1/9 of the nitrogen (N) in sewage is part of fecal protein with the remainder ' l *ality Control Inspection