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°° Suitability.Stud "� Parcet 4=41.019 ACRES,About 0.33 Miles South of rite Intersection of Durham <br /> Soil Study"; <br /> Ferry,Kasson Roads and Airport Way With Access Off Of Durham Ferry Road <br /> APN: 255-340-04 <br /> l All six(6)of the permits were for leach field installations with leach lines varying in <br /> number from one(1)to four(4)and from sixty(60)feet to one hundred (100) feet in <br /> length. One (1)of the six(6)permits reviewed contained an initial inspection note that <br /> there might be a possible future failure of the system. Another permit of the <br /> 6 ears and five 5 months <br /> six(6) indicated that the system was indeed replaced six( )y ( ) <br /> later. The permits reviewed were dated from November 17, 1972 to January 29, 1991. <br /> PERCOLATION TEST: Only one (1)parcel is covered in this report and was the only <br /> one requested and contracted to be reported on. The parcel covered and reported on is <br /> Parcel 4 and is shown on the attached"Parcel Map". <br /> On Friday, January 18, 2002, a Percolation Test Hole was excavated to a depth of <br /> about three(3)feet and a Soil Profile Test Hole was excavated to a maximum depth of <br /> ten(10)feet and three (3) inches as noted on the attached"Field Percolation Data Sheet". <br /> The location of these test holes are depleted on the attached"Parcel Map". The <br /> Percolation Test Hole was presoaked on Tuesday,January 22, 2002 and the percolation <br /> readings were made and the percolation rate determined on Wednesday,January 23, <br /> 2002, <br /> TEST RESULTS: The result of the percolation test on Parcel 4 is as follows: <br /> Parcel No. Test Hole NoPercolation Rate in/lnch Minimum Usable <br /> Shallow Test 3' Deep m4rcj Area(Square_ Feet <br /> M 4 3 PH 6.32 6,000 <br /> WELL WATER ANALYSIS: There is a well on the subject property and the property <br /> owner has the responsibility for arranging for any well water testing and analysis needed. <br /> No well water testing and analysis is made an integral part of this report. The results of <br /> any well water testing and analysis will be supplied separate and apart from this report. <br /> ENGINEER'S STATEMENT: Septic systems of the types proposed can be installed <br /> and their construction is not expected to impact groundwater or cause other hazards. <br /> Walter E. Curtis <br /> Civil Engineer <br /> C.E. # 11584 <br /> 4 i <br /> Attachments: <br /> Development Plan(1) <br /> Parcel Map(1) <br /> Field Percolation Data Sheet(1) <br /> �I <br /> Lisa Ward, 1034 Central Ave.,Tracy, California 95376—3915, (800)836-1404,(209)830-1908 <br /> 4 <br /> I <br />