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6.7 Discussion of any potential problems predicted and/or the need for an engineered or alternative septic system. In this area, the soils are classified as Acampo Sandy Loam, Bruella Sandy Loam and Tokay Fine Sandy Loam. Due to this classification and percolation rate, a standard septic system would be recommended on subject parcel. 6.8 Discussion of percolation rates in relation to the type, size and location of future leach fields needed at the site. Based on the results of the percolation rate and the soils profile, it is Dillon&Murphy's opinion that the subject proposed parcels are suited for a typical on-site sewage disposal system. The systems should be properly designed and installed according to the current San Joaquin County criteria for standard septic systems. Based on the depth to groundwater in the area,and the size of the proposed parcels,it is our opinion on that the installation of any new proposed septic system, if property installed, should not adversely affect the quality of groundwater in the area. 7.0 CONCLUSION SECTION The conclusions of this report are based on the information provided regarding the proposed development,the use of the subject property, and the site conditions as they existed at the time we excavated our test hole and performed the percolation test. It was assumed that the test holes and percolation test results are representative of the subsurface conditions in the general area. The Conditions of Approval for PA-1800170 required a Nitrate Loading Study. I spoke to Linda Turkette and explained the uniqueness of this project. The owner actually already owns two legal parcels. One parcel (APN 017-260-17) is twenty acres and the other parcel (APN 017-180-10) is approximately 75 acres. The owner's intent was to create two equal sized parcels via a Lot Line Adjustment application. The owner was not allowed to submit a Lot Line Adjustment application due to a technicality. (The properties were contiguous at a point rather than a line). If the goal could have been met via a Lot Line Adjustment, neither a Soils Suitability Report or a Nitrate Loading Study would have been required. Due to the technicality,the properties had to be merged and then divided via this Minor Subdivision application. I explained this to Linda Turkette and she indicated that a general discussion of the impact to the groundwater would suffice rather than an actual Nitrate Loading Study. Obviously, one homesite every 47 acres has very minimal impact to the groundwater. The depth to groundwater (180"'-) and the soil classification yielding a permeability rate of"moderately slow" are all indicators that the reconfiguration of the two large acreage parcels will have negligible impact to the groundwater. Our services were performed, our findings obtained, and our conclusions proposed in accordance with generally accepted engineering principles and practices. The warranty is in lieu of all other warranties either expressed or implied. Test findings and statements of professional opinion do not constitute at or warranty, expressed or implied. Q�,pFESS/pN t.�►URPyy r*i LU 0 5277 J e urphy EXP 9-30- + E. 45277 sTgT �I'ki 1 V 4 F OF C P��F