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(§ 1.0) INTRODUCTION This Soil Suitability Study presents the results of my investigation concerning the soil characteristics and groundwater under the subject property referenced on the Title Page. It was completed to satisfy the requirements of the San Joaquin County Environmental Health Department (EHD), specifically to: 1.) Create a two-parcel subdivision and to determine if the soils underlying these proposed two Parcels are acceptable for the proper operation of a future 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. This 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 are referenced at the beginning of an applicable sentence,paragraph or paragraphs, or Appendices that correspond with the EHD Requirements Checklist for a Soil Suitability Study. (§ 2.0) SUBJECT SITE AND STUDY AREA BACKGROUND INFORMATION 1.1 1The purpose of this project is to subdivide an existing 4.52± acre Parcel into two els denoted as Parcel 1, which is to be 2.0 acres and Parcel 2, which is to be 2.52 acres. The entire subject Parcel is vacant of buildings and currently fallow. There are no domestic, irrigation or monitoring wells, nor septic system(s) on the property. ) Parcel orientation is denoted on the Tentative Map found in Appendix A, produced by the Wngmeering firm of Schack & Company, Inc. Although there currently is no proposal to build anywhere on the subject property, it is anticipated that single family residential structures will ultimately be built. Consequently, perc tests have been conducted to encompass the entire subject property so that a septic system can be installed anywhere. Future primary houses with a potential second unit dwelling built on proposed Parcel 1 and 2, gives a potential maximum total of four septic systems on the two Parcels consisting of approximately 4.52 acres. This is a density of approximately one septic system per one acre, which can be considered very low density. uu o�1.1 d 2, The subject property is approximately four miles southeast of the town of Tracy. operty use consists predominately of agricultural production land, low density of single family homes, ranchettes, and two boutique wineries. Current zoning is Rural Residential (R-R), which will not change. Municipal sewer will possibly serve this area, but not before a number of decades. r 4.2) Any surrounding land use could create environmental concerns that may be discovered in e on, or under the subject property. Groundwater nitrate concentrations are unknown in the surrounding area and could not be determined since there is no on-site well. As depicted on the Tentative Parcel Map, the topography of the site is relatively level. Therefore, septic system design criteria for slopes do not have to be considered. There appears to be a depression on Parcel 1 that may require soil importation. Page -1-