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Now 22 re `During the course of the testing and calculations, it has been determined that the required 100% reserve/replacement areas can easily be situated to the south of the primary leachfield, into the ag production acreage area. • Although ultimate wastewater flow volumes emanating from the completed project are unknown, the average daily flow(ADF)volume was formulated using all available parameters acceptable to EHD. Average daily flow volumes of domestic sewage are expected to be comparatively small. In summary, the soils testing and investigation has found the indigenous soils under the proposed domestic wastewater disposal area to contain predominately fine-to-medium sandy soil with some silt throughout the 42 inch depth and down to 10 feet. Silt was particularly evident in the in the upper horizons. The percolation rate obtained from the soil testing in the proposed disposal location reveal the soil to possess very rapid perc rates which will preclude the use of native soil in the bottom of the leachline trenches. A clay loam soil type has been imported from the Linden area to be used to "line"the floors of the leachline trenches and slow the percolation to achieve a higher degree of biological action on the effluent. A conventional septic system arrangement is proposed for effluent disposal from this facility consisting of a septic tank, distribution box and leachline trenches with drain rock. Current nitrate impact to the aquifers under the property was found to be a relatively high nitrate concentration of 41 ppm. The MCL for nitrate (as nitrate) is 45 ppm. Within the text of this Report, Bolded Section (§)numbers are referenced at the beginning of an applicable Paragraph or Paragraphs, Appendix or Table of Contents that correspond with the EHD Requirements Checklist. Section Numbers referenced as SSS§, are sections applicable for the Soil Suitability Study Requirements Checklist. Section Numbers referenced as NLS§, are sections applicable for the Nitrate Loading Study Requirements Checklist. Other portions of text may also apply to other sections of the Checklists. II. SOIL SUITABILITY STUDY FINDINGS A. SUBJECT PROPERTY AND SURROUNDING STUDY AREA INFORMATION / SSS§ 1.1. Surrounding land use, particularly to the north, south, and east of the project is, and has ( been, in agricultural production for many decades. New development within the City limits of Manteca is occurring to the north of the project, and is projected to proceed east along the north side of Highway 120. As noted on the San Joaquin County Parcel Viewer Maps, the current surrounding land use is composed primarily of agricultural production land to the north, south and east. To the east of the subject property along Highway 120 are commercial and industrial fa of which are on decentralized wastewater management systems. The property is zone AG-40, Agricultural. SSS§3.1, . , 3,3.4,3.5,3.6. Applications microfiche file with the EHD reveal that there have bee eight-permits issued for`repairs/additio to existing systems within a one mile radius surrounds the project site on Oighway 120. 2 Chesney Consulting