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1� FAs ewer will probably never serve this area, or at least not for several decades. Any of the use could create environmental concerns that may be discovered in the future. on the attached USGS Map and the Tentative Map, the topography of the site isapproxmaely 73 feet above MSL,with a very slight land declination toward the northwest. Therefore, septic system design criteria for slopes do not have to be considered. (§ 3.1,3.2,3.3 and 3.4) The on-site septic systems referenced above have been functioning properly without any problems since they were installed in 1974 and 1985. Permits for these systems are found in Appendix D, which illustrates the system to consist of leachlines and sumps. The Tentative Map for the project illustrates all septic systems on the subject property. (§3.4) The subject property is in an area designated as"Sand/Sandy"by EHD's colored map denoting the various soil types and septic system requirements throughout the County. (§5.4) Therefore, since the water table is relatively deep under the property at approximately 55 feet, leachlines and sumps (not seepage pits) are allowed to be installed in this area. (§3.5 and 3.6)A review of Application Permits on file with the Environmental Health Department reveals that the only Applications for Repairs/Additions to septic systems on Louise Avenue was for the Vander Beek residence. No permits were found for Wagner Road(nearest cross street). This permit is found in Appendix D and indicates a connection to the existing system. (§ 5.4) This can be considered a low number of Repairs/Additions/Replacements, and can be attributed to the indigenous silty/sandy soil type. Consequently, the majority of effluent volume is managed by leachlines and possibly sumps in this area. (§ 5.1 and 6.0) SOIL PROFILE AND PERCOLATION TESTING (§ 5.1)The Tentative Map in Appendix C shows the locations of the perc test locations and soil profile boring. As noted on the USDA Soil Survey map, the entire on-site soils consist of Veritas fine sandy loam (#266). Typically, these soil types are well-drained with moderate permeability in depths down to 60 inches. Occasionally, hardpan may be encountered in this soil. However, a nine- foot boring was completed on Parcel 2 near the location of the proposed septic system and no hardpan was encountered. (§ 5.2 and 5.3) Logs of Boring designated by the Unified Soil Classification System(USCS), as observed from each of the perc test borings, are found on the respective EHD PERCOLATION TEST DATA SHEETS. Generally,the soils show uniformity between the Parcels, except Parcel 2, as discussed below. Mostly the soils are a fine sandy silt/silty sand in the shallow depths. However, the perc test boring and the nine-foot boring completed on Parcel 2 revealed a fine sandy clay material, intermittent with a fine sandy silt. The perc test results for Parcel 2 indicates the presence of the sandy/clayey material. For Parcel 4, the comparatively slower perc rate maybe attributed to soil compaction within a truck loading area. Page-2- Chesney Consulting