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(§ 1.0) INTRODUCTION This Soil Suitability Study presents the results of our investigation concerning the soil characteristics and groundwater under the subject property referenced on the Title Page. Our study was completed to satisfy the requirements of the San Joaquin Environmental Health Department (EHD), specifically: 1.) To determine if the four Parcels that are proposed to be subdivided 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. Our 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'4A) Two well water constituents are typically sampled for EHD requirements: F nitrate and the agrichemical DBCP (Dibromochloropropane). In previous Soil Suitability Studies in this locale, Mike Huggins of EHD waived the requirement for DBCP testing since there was no agricultural production in this locale from 1970 up through 1976 that would have used this material. However, since there is vineyard production currently on the subject property, it is ' EHD's prudent policy to test the well for DBCP to ensure it is not present. 5 (§ 2.0) SUBJECT SITE AND STUDY AREA BACKGROUND INFORMATION I (§ 1.1 and 1.2) The purpose of this project is to create-four new parcels from a total area of 9.7 f acres, and propose to construct single.family residential (SFR) structures on proposed Parcels 2, 3 and 4, which are currently vacant. The Welch's residence, septic system, a small wooden structure, a sea container, and domestic well currently exist on proposed Parcel 1. There is no proposal to build a second unit dwelling on Parcel 1. Each parcel area and orientationsare denote on the attached TentativeMap, o n m Appendix A. (§ 3.7) It is possible EHD would support second unit dwellings on proposed Parcels 2, 3 and 4, for a total of seven septic systems on the subject property. (§ 1.1 and 2.1) The subject property is near the small town of Peters, one-quarter mile north of Copperopolis Road. Surrounding property use consists predominately of low density single family residences, farmland, orchards, ranchettes, horse ranches, and other types of ag buildings. The subject property is currentl zo al reside Municipal sewer will probably never serve this area, or at least not for several decades. Any the above land use could create environmental concerns that may be discovered in the future. As depicted on the attached USGS Map and the Tentative Map, the topography of the site is 91 feet above MSL, with a very slight land declination toward the southwest. Therefore, septic system design criteria for slopes do not have to be considered. Page -1- Chesney Consulting