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Soil Suitability r Nitrate Leading Study Irerracan <br /> Whitlow Property ■ Stockton, CA <br /> November 20, 2019 v Terracon Project No. NA197078 <br /> Leach <br /> Line Seepage Pits, <br /> Tank Size Leach Line <br /> Direction Address Permit N Type (Gallons] Quantity Length width x Depth <br /> (Feet) <br /> !Feet) <br /> 20464 New Install 800 1 50 One 20W2 <br /> (1966) Office sump <br /> 71�-223 New Install 1.200 2 40 Two 2.75x25 <br /> office <br /> New Install <br /> $7-15Q7 &Repair Shop 1.200 1 40One 3x25 <br /> New Install <br /> 8&386 Gym 8 3,200 3 60 Three 4x25 <br /> Hanger <br /> East 1129" N Alpine Rd i'1�387 New Install 3.200 3 50 Three 4x25 <br /> House <br /> 88 2439 New Install 3.2OO 3 60 Three 4x25 <br /> House <br /> 90-891 Repair — 1 4O One 3 <br /> Gym <br /> SROO11921 Repair — 2 40 Two 4x25 <br /> House <br /> SRO030442 New 5 eall 2.000 3 60 <br /> House <br /> south 11033 N.Alpine Rd NF - - - — — <br /> 70D Feet <br /> South 14999 N Alpine Rd 77-697 New install 1.6OO 3 75 Three 3.5 x 25 <br /> West 11121 N.Alpine Rd NF - <br /> NF-No septic permils found. ILL-leach lines <br /> Based on a review of the permits, the septic systems in the area appear to primarily utilize 40 to <br /> 75 foot leach lines with one 25 foot deep seepage {pit at the end of each leach line. Seepage pit <br /> widths range between 2.75 and 4 feet, <br /> 1.3.6 Septic Repair permit History in the Vicinity <br /> Septic repair permits appear to be for the addition or replacement of leach lines with seepage <br /> pits. Septic permits can be found in Appendix C of this report. <br /> 1.3.7 Expected an-Site Maximum Septic Tank Usage <br /> The total maximum daily septic tank usage for the site will be approximately 560 gallons per day <br /> (gpd). Refer to Section 2.3.4 for the waste water flow calculation. <br /> 1.4 Groundwater information <br /> 1.4.1 Groundwater depth and Gradient <br /> Groundwater was not encountered within our geotechnical or percolation test borings which were <br /> drilled between 3.5 and 25 feet below grade surface (bgs). <br /> Responsive ■ Resourceful n Reliable 6 <br />