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OWNER: Canfield ADDRESS : 27767 N Sowles Rd . LOCATION: Approximately 300 yds east and north. AGE OF HOUSE: 40 years . but has not been hooked up yet . SEPTIC SYSTEM: Yes , present system consisting of 3 - 70 foot leach lines has failed , currently in process of installing a new system consisting of 3 leach lines and dry wells . V. GROUND WATER DEPTH AND TESTING The existing 30 hp pump and well located in the northwest corner of the subject property were tested by the PG&E pump testing representative , Mr . Dave Giger, on Jan 23 , 1990 . At this time the standing water level was found to be 108 . 9 feet . According to the map of "Lines of Equal Depth to Water in Wells" published spring of 1990 by the San Joaquin County Flood Control and Water Conservation District , the depth to groundwater at this location is between 110 and 120 feet . Due to the present and past use of the subject and surrounding property (pasture and field crops ) , it was not felt necessary to test the well water for any possible contamination. VI . SOIL PROFILE AND PERCOLATION TESTS A test pit was excavated to a depth of 10 feet to determine the soils profile in an area on parcel 1 that a septic system would likely be located. The test pit was excavated with a Cat 416 backhoe equipped with a 24 inch bucket . Visual classification of each soil stratum encountered was made in the field by a civil engineer at the time the test pit was excavated. A description of each soil encountered is contained in the Appendix as Log of Test Pit . For approximate location of test pit (TP ) see Tentative Parcel Map in the Appendix. The surface soil consisted of a brown fine sandy silty clay to a depth of 8 feet . The top 2 feet of the surface soil was loose and saturated . The surface soil was underlaid by a strata of brown clayey silty fine sand that continued to the maximum depth explored of 10 feet . Percolation tests consisting of a shallow ( 36 inches ) and deep ( 25 feet ) pit , were performed at the northeast corner of the subject property. A deep pit percolation test was ran in conjunction with the shallow test because it was anticipated that the surface soils would be very slow to percolate . The tests were performed at the northeast corner location due to limits on drill rig accessibility as a result of soft surface soils . However , the ?pERSO 3 P '� D � Z W P 4SSoc\