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Mian Property Page 2 of 3 Our Project Number: LGS080502 March 24, 2008 The hole was pre-soaked 24 hours prior to the test with 12 inches of water above the bottom of the hole. Presoaking of the percolation test holes occurred approximately 24 hours prior to the percolation tests. The percolation tests were conducted for the borings on March 21, 2008 in accordance with the requirements of the EHD. A percolation test with a duration of four hours was performed for _ the shallow hole on Parcel one and for the deep hole on the Designated Remainder. Standing water from presoaking was encountered in the deep hole on Parcel one on the day of testing. No test was performed for this hole since the water was not percolating. The final half-hour of _ each four-hour percolation test was observed by Ms. Lisa Medina, Inspector, Environmental Health Department (EHD). _ Measurement of the water level during the percolation test was from a fixed reference point on the PVC casing using an electric well sounder with a depth accuracy of 1/100th foot. All tabulated values on the field data sheet (attachment) are in decimal feet. After water drop was �) observed, the holes were checked for needing water refill. The refill level was approximately 0.5 ft (6 inches) of water above the bottom level of the percolation test holes. The readings were taken approximately every 30 minutes for a period of four hours. A shallow percolation test is defined by the EHD as being between 36 and 42 inches in depth; a satisfactory percolation rate for a shallow test is less than or equal to 60 minutes per inch drop. A deep percolation test is defined as being between 3.5 and 25 feet in depth; a satisfactory percolation rate for a deep test is 30 minutes per inch or less. Either a shallow or a deep percolation test must demonstrate a satisfactory rate within the proposed septic system disposal field to be suitable for a standard septic system. Details of the percolation tests are summarized in the following table. Summa of Percolation Tests. Test No., Percolation Test Percolation Rate Test Comment Date Tested Depth (ft) (minutes/inch) Duration (see notes) Parcel 1 (shallow) 3.15 7.57 4- hr Satisfactory 3-21-08 percolation rate Parcel 1 (deep) 23.16 No test 4- hr Standing Water 3-21-08 LRemaiLnder Satisfactory eep) 24.35 6.25 4- hr percolation rate Note: A satisfactory percolation rate for a"shallow"test is less than or equal to 60 minutes per inch A satisfactory percolation rate for a"deep"test is less than or equal to 30 minutes per inch. The soils within the sewage disposal area of the site have demonstrated a satisfactory percolation rate in accordance with the requirements of the EHD for the use of a standard septic system for each parcel. Septic System Construction should follow the San Joaquin County On-Site Wastewater Disposal Standards where applicable. 907 Industria/Way•Lodi, CA 95140 709.3673701 •Fax 209.3338303 07007 Neil O.Anderson&Associates,Inc.