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Perc test locations were determined by pacing from roads or Parcel corners, which are readily marked with stakes. A measure wheel could not be used due to heavy vegetation. The following information describes the preparation of the percolation test borings and the actual percolation testing: On April 26, 2005, one shallow perc test boring and one deeper test boring were drilled on the proposed Parcels in the locations referenced on the Tentative Map found in Appendix C. The sidewalls of the shallow borings were scored with a pry-bar and the loose material removed. Two inches of fine gravel was placed at the bottom and three-inch perforated PVC pipe was inserted in all of the test borings. All test borings were pre-saturated with 12 inches of water, approximately 24 hours before the start of testing. On May 2, 2005, at 0900 hrs,percolation testing commenced for Parcels 10, 11, 7 and 6. There was standing water after the 24-hour soak period in three of the perc tests that failed, as depicted in Table 1 below. Consequently,EHD Perc Test Procedure#1 was conducted for these three borings. There was no standing water after the 24-hour soak period in the other test borings with passing rates. Therefore, Percolation EHD Test Procedure#2 was performed for these test borings. On May 3, 2005, at 0900 hrs,perc testing commenced for Parcels 1, 2, 3 and 9 under the procedures referenced above. On May 4, 2005, perc testing commenced at 0900 hrs for Parcels 8,4 and 5, also under the referenced procedures. The last half hour of the tests was witnessed by David Van Dyne of the San Joaquin County Environmental Health Department. The following Table summarizes and illustrates the pertinent data for each proposed Parcel, including potential septic system structures based on the depth of passing perc rates,proposed acreage,post soak period status and perc test results for the respective perc test depths: Page-4- Chesney Consulting