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April 25,2001 <br /> Job Number: LGOI-098 <br /> Page 7 <br /> Four-(4)percolation tests were conducted at the site. The percolation test borin s were <br /> p , . p g <br /> sdfadjacent to the soil boring location'and were-drilled utilizing 44-inch diameter hand auger. <br /> rThe casing used for the test 'was 2-inch diameter PVC pipe with an open end.on-the top and <br /> N bottom.. Perforations were made.on approximately the last'12 inches of the casing. .Tw6.(2) . <br /> inches of"pea gravel"was placed iri the bottom of the hole, the casing was installed, and one(1) <br /> foot of"pea'gravel"was backfilled in the annular.space. The percolation test-borings was pre- <br /> soaked 24-�hoursP rior to the test. <br /> A four(4)hour percolation test.was conducted for each location: Each test was conducted <br /> on March 30, 2001 in accordance with the requirements of San Joaquin County Environmental <br /> Health Division. The last hour of thepercolation tests-were observed by Mr. Steven Shih, <br /> v Environmental Health Specialist of the San Joaquin County Environmental'Health Division. The <br /> following table-presents a summary of the percolation test. <br /> Table 4 <br /> Summary of Percolation Tests. <br /> Percolation Test, Percolation Test Depth to Ground Percolation Rate Comment <br /> No: Depth(ft) Water(ft) (minutes/inch) <br /> P-1 1.5 6.5` 30 Passed Test <br /> (74.84-acre) <br /> P-2 1.5 ' 6.5 5-60 Failed Test <br /> `2-acre west <br /> P-3 .1.5 6.5 >60 Failed Test <br /> (2-acre center) <br /> P-4 1.5 6.5 X60 FailedTest <br /> IL (2-acre east) <br /> A satisfactory percolation rate per County requirements is<=60 minutes per inch(drop).- <br /> Test <br /> drop).Test P-I was the only test which passed the minimum requirements for percolation. 'The tests <br /> conducted on the three:(3) proposed 'new 2-:acre parcels failed to achieve the tnimmurn: <br /> percolation rate. Parcels that do not achieve,a,satisfactory percolation rate will be required by the ; <br /> County to utilize an engineered (non-standard"type) septic system'. Utilizing an engineered septic' r <br /> system.for each parcel was part of the project plan. The-percolation tests that were conducted in # <br /> Pe� each.of the new parcels have satisfied the County requirement for the lot line adjustment. In , <br /> ,. 9 r fleasai <br /> ' 7 <br />