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121 Cont. <br /> Rice, pasture and alfalfa are also grown in the surrounding study area. The topography of the site <br /> is relatively flat. Therefore, a proposed septic system design would not have to be altered to <br /> accommodate slopes. Parcel 1 contains a house, pole barn, shed and a corral area, while Parcel 4 <br /> contains a house. <br /> A review of Application Permits on file at the San Joaquin County Environmental Health Department <br /> indicates there have been I 1 Applications for Repairs/Additions in the one mile diameter study area. <br /> Most of these applications for system modifications were for additional drainage to existing systems, <br /> particularly as seepage pits. This number of Applications can be considered high for the study area <br /> and indicate the soil is not conducive for shallow effluent percolation. <br /> [31 PROPOSED DEVELOPMENT OF THE SUBJECT SITE <br /> The property is zoned AG-40 with the general plan designation as agriculture. As referenced <br /> above, four 40 acre parcels are to be created. It is our understanding there is to be a single family <br /> residence built on either Parcel 2 or Parcel 3. Percolation testing was conducted in the proposed <br /> location for a house on each parcel. There is an irrigation well near the proposed property border <br /> of Parcels 2 and 3 that may be within the 10 foot minimum required distance. <br /> [41 SOIL PROFILE AND PERCOLATION TESTING <br /> Due to the extreme variability of the soil in this locale, the three percolation test pits were du`, <br /> with a backhoe to better analyze the subsurface soil structures and definitively locate underlying <br /> sand strata. The predominate soil type from existing grade to approximately 9 ft is a clay soil <br /> From our past experience, this is the predominate soil type, to this depth throughout the area. <br /> Well logs reviewed at the Health Department indicate there are occasional sand strata at shallower <br /> depths. Shallow perc tests were riot performed at 42 inches because of the heavy clay soil at this <br /> depth. This 42 inch depth represents the maximum leachline trench placement where percolation, or <br /> wetting front will occur in native soil. <br /> �• Q'.iiN Jwpa'im <br />