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SOIL SUITABILITY <br /> NITRATE LOADING STUDY <br /> NEW HAVEN ELEMENTARY SCHOOL <br /> 14600 AUSTIN ROAD, APN 206-100-05 <br /> MANTECA, CALIFORNIA <br /> This report includes the results of a Soil Suitability/Nitrate Loading Study for Manteca Unified School <br /> District's(MUSD)New Haven Elementary School Modernization Project located at 14600 Austin Road in <br /> Manteca, California (the Site). Figure 1 (Appendix A) presents a Vicinity Map of the Site and Figure 2 <br /> (Appendix A)presents a Site Map/Aerial Photograph. <br /> 1.0 SOIL SUITABILITY STUDY <br /> 1.1 INTRODUCTION&DEVELOPMENT SECTION <br /> The Soil Suitability Study(SSS)was conducted to determine whether Site soils are suitable for expansion <br /> of the septic system as part of the New Haven Elementary School Modernization Project. The SSS was <br /> performed pursuant to requirements of Section 9-1105.2(d) of the San Joaquin County Development code <br /> and has been prepared to meet the requirements of the San Joaquin County Environmental Health <br /> Department (EHD) Soil Suitability Study Requirement Checklist(dated 9/25/07). A major element of the <br /> field work included conducting percolation tests that meet absorption rates as specified by the EHD. A <br /> review of published soil information, geologic maps, and available groundwater information was also <br /> conducted. <br /> 1.1.1 Description of Site, Including Zone Information <br /> The New Haven Elementary School property is located in the northern San Joaquin Valley approximately <br /> 3 miles northeast of Manteca. The 16.95-acre site(APN 206-100-05) is generally rectangular in shape and <br /> surrounded by mixed agriculture and rural residential development. Lathrop Road is immediately to the <br /> south. The Site elevation is approximately 45 feet above mean sea level and the land is relatively flat(less <br /> than 2 percent slope). The topographic gradient slopes gently west toward the San Joaquin River <br /> approximately 7 miles away. <br /> 1.1.2 Description of Proposed Development <br /> We understand that the proposed construction will include a new gymnasium and access improvements <br /> associated with the building. The proposed gymnasium will be approximately 7,200 square feet and the <br /> existing portable classrooms adjacent to the proposed building will be removed as part of the proposed <br /> project. The proposed building(Building H)will utilize a new 5,000-gallon septic tank and 900 linear feet <br /> of new leach line to supplement the existing system. The proposed layout for the Site's building locations, <br /> and existing buildings is shown on Figures 3 and 4 (Appendix A). The school has an existing student <br /> enrollment plus staff of 581,which is not projected to increase as a result of the project. <br /> 1.1.3 Parcel Vicinity Location Map <br /> See Figure 5,Appendix A. <br /> 1.1.4 Site Map Showing Location of All Items on Parcels (i.e., Structures, Drives, Wells, Septic <br /> Systems,Large Trees,Pastures,Pools,Natural Drainage Courses,Ponds,Waterways,Etc.) <br /> See Figures 2 through 4(Appendix A). <br /> IV CONDOR <br />