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(§ 1.0) INTRODUCTION Frand s Soil Suitability Study presents the results of my investigation concerning the soil characteristics groundwater under the subject property, as referenced on the Tentative Map and on the Title ge. This study was completed to satisfy the requirements of the San Joaquin Environmental Health Department (EHD), specifically: 1.) To determine if the two Parcels proposed to be created are acceptable for the proper operation of a septic system which will function as intended for its anticipated lifespan, and 2.) Provide analysis and recommendations based upon the environmental criteria encountered in this study. My report is in compliance with the requirements for a Soil Suitability Study under Development Title Section 9-1105.2 Item (d) of the San Joaquin County Ordinance Codes. Within the text of this Report, bolded Section (§) numbers will be referenced at the beginning of an applicable sentence,paragraph or Appendix that correspond with the EHD Requirements Checklist for Soil Suitability Studies. (§ 2.1, 4.2 and 4.4) The findings of this study conclude that the soils underlying the project are conducive for the proper operation of a septic system for a fixed,but indeterminable lifespan. The greatest problem to a potential septic system installed on the tested Parcel would be from root / intrusion from the surrounding peach orchard. However, the Applicant's are not proposing to install / any strDibro h a septic system upon this Parcel. The twter constituents sampled for EHD requirements mtrate, d the agrichemicals DBCPchloropropane) and EDB (Ethylene Dibromide .:Analytical ater test results from the well 1 reveal a relatively high nitrate concentratio at 39 ppm, b,t below the Maximum Contaminant Level (MCL). DBCP and EDB were found to be on-detect. The high nitrate well water concentrations can be attributed to the surrounding intensel - ed"land use for the past six decades. (§ 2.0) SUBJECT SITE AND STUDY AREA BACKGROUND INFORMATION (§ 1.1 n 1.2 el area, orientations, and structures are denoted on the attached Tentative Map, foun i pe dix The purpose of this project is to subdivide an existing 46.13 acres into a 2.74 acre P el l, d a esignated Remainder of 43.39 acres. There is no proposal to construct a single family res' (SFR) structure on proposed Parcel 1 and there is also no proposal to build on the Designated Remainder. Parcel 1 has a SF)t structure, along with a mobile home and a detached Quonset-type garage. These structures 7),6_ denoted on the attached Tentative Map,with each SFR having individual septic systems. (§ 3.1 It is possible EHD would support second unit dwellings on proposed Parcels 1 and the Designated Remainder, if it is in compliance with the Planning Department. This would give a total of four septic systems on 46.13 acres, or one system per 11.53 acres. This can be considered very low density and would contribute an extremely small volume of nitrogen in comparison to the subject property orchards. Page -1- Chesney Consulting