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CLAUDE C WOOD CO. PROPERTY Page No. 3 The soils encountered in the test pit consisted predominantly of silty sands. A moderately cemented stratum was encountered at the 9 foot depth. A percolation test was performed adjacent to the test pit location. The percolation test was performed in an 8 inch diameter by 36 inch deep test hole. A 3 inch diameter perforated measuring device was placed in the hole and backfilled with 3/4 inch gravel. The test hole was filled with water 24 hours prior to running the test. Because of the extremely rapid drop of water in the test hole (12 inches in 30 to 60 seconds) time readings were taken over a 12 inch drop in water level. The last test readings were witnessed by a county health official and the test data obtained is enclosed in the appendix. A summary of the test results is presented next: Diameter of Depth of Test No. Hole ,in.) Hole in. Percolation Rate (min/in) 1 8 36 0.08 VII CONCLUSION The surface soils in the area are very sandy and permeable. Based on the results of the percolation test, the soil profile, and the performance of the septic systems in the surrounding area, it is our opinion that the SE corner of the subject Parcel i should be well suited for the use of a septic tank and leach line sewage disposal system should it ever be proposed. Any proposed system, however, should be properly designed and installed according to current San Joaquin County criteria. Based on the depth to ground water in the area, it is our opinion that the installation of the proposed septic systems, if properly installed, should not adversely affect the quality of the ground water in the area. VIII LIMITATIONS The conclusions of this report are based on the information provided regarding the existing and proposed development, the use of the subject property, and the site conditions as they existed at the time we excavated our test pits and performed the percolation test. It was assumed that the test pits and percolation test results are representative of the subsurface conditions in the general area. Our professional services were performed, our findings obtained, and our conclusions proposed in accordance with generally accepted engineering principles and practices. This warranty is in lieu of all other warranties either expressed or implied. Test findings and statements of professional opinion do not constitute a guarantee or warranty, expressed or implied. I vESS10p� Very truly yours, p.ANDE' �y w��j `r0 cam., ANDERSON & ASSOCIATES q' No.C 4619 1F �D ed O. Anderson C I v f�:�' ' Civil Engineer No. 4461 NOA:noa �'� Of L,,L\F �o ZOve R so [soils\s9137.rpt] DS'S 0