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t , <br /> Soil Suitability Study*MS-98-27*Parcel No . 1 & Designated Remainder <br /> Laboratories Inc . " and is shown on their attached letter , dated <br /> October 5 , 1998 . <br /> RECOMMENDATIONS : Due to two ( 2) , PH 1 and RPH, of the pre 1 imi nary <br /> non-standard 3—foot depth percolation tests fi l ing to meet the San <br /> Joaquin County Health Service , Environmental Health Division <br /> requirement of a percolation rate no greater than 60 minutes per <br /> inch , the use of a subsurface horizontal leach field solely is not <br /> permitted . Effluent is recommended to be discharged into 12 , 000 <br /> square feet minimum usable disposal areas in combination with <br /> subsurface horizontal leach lines into seepage pits at a maximum <br /> depth of twenty-f i ve feet for both Parcel Nos . 1 and the Designated <br /> Remainder parcel . <br /> Engineer ' s Statement : Septic Systems can be installed to the <br /> density proposed and it is not expected to impact groundwater nor <br /> cause other health hazards . <br /> "o <br /> Walter E . Curtis <br /> Civil Engineer <br /> C. E . # 11584 <br /> Attachments : "Field Percolation Data Sheets" ( 2) <br /> "Tentative Parcel Map" ( 1 ) <br /> "Far West Laboratories Inc . " Letter , dated 10-5-98 ( 1 ) <br /> Noreen Thompson , 3157 East Woodson Road , Acampo Ca. 95220 5 <br />