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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. This report was completed to satisfy the requirements of the San Joaquin Environmental Health Department(EHD), specifically: 1.) To determine if the proposed three Parcels to be created from this subdivision are acceptable for the proper operation of any 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, 1.2, 2.1 ) The purpose of this project is to subdivide an existing 219.63 acre Parcel, into Y� three Parcels, denoted as Parcel 1,Parcel 2 and Parcel 3. There is no proposal to construct any buildings on the three Parcels. Parcel 1 is to be 75.68 acres gross and is presently agricultural /) production land with an irrigation well and a smaller domestic well in the northeast corner. It is !J my understanding these two wells are to be closed-in under EHD permit. Parcel 2 is to be 3.44 acres gross. This is to be a homesite Parcel and contains a barn, a house, a domestic well and an /2 , irrigation well. Parcel 3 is also agricultural production land and is to be 142.52 acres gross. There l -J is a defunct labor camp and an irrigation pump at the south boundary of this Parcel. to Each parcel area and orientations are denoted on the attached Tentative Map, found in Appendix A. (§ 3.7) It is possible EHD would support a second unit dwelling on proposed Parcel 2, if applicable distance requirements between wells and septic systems can be met. If a primary and second unit dwelling were built on Parcels 1 and 3, and a second unit dwelling on Parcel 2 would give a total of six septic systems on the three Parcels comprising 220 acres. This is a density of one septic system per 36.7 acres, which can be considered an extremely low septic system density. (§ 1.1 and 2.1) The subject property is directly north of the Calaveras River and Eight Mile Road. Surrounding property use consists predominately of very low density single family residences, ranchettes,pasture, orchards, vineyards and confined animal facilities such as horse ranches, and other types of ag buildings. Current zoning is AG-40. Municipal sewer will probably never serve /) this area,or at least not for several decades. (§4.2) Any of the above land use could create / environmental concerns that may be discovered in the future. Groundwater nitrate concentrations are low due to a low density of septic systems and a deep depth to groundwater. As depicted on the attached USGS Map and the Tentative Map, the topography of the site is 70 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