SU0004992 SSNL - Laserfiche WebLink

Home Browse Search

(§ 1.0) INTRODUCTION 2005 AUG 18 PM (* 39 This Soil Suitability Study presents the results of our investigation conc�ep}n the� gl�c�gZt1rristics and groundwater under the subject property referenced on the Title Page. € Y Meted to satisfy the requirements of the San Joaquin Environmental Health De% tuex�t� specifically: 1.) To determine if the four 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. 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 4.4) The findings of this study conclude that the soils underlying the project are conducive for the proper operation of septic systems for a fixed,but indeterminable lifespan. The Applicant's are proposing to install only one septic system for a new residential structure on proposed Parcel 2. The two well water constituents typically sampled for EHD requirements are nitrate and the agrichemical DBCP (Dibromochloropropane) and EDB (Ethylene Dibromide). Analytical water test results from the two on-site wells reveal high nitrate concentrations, and DBCP/EDB as non-detect. The high nitrate well water concentrations can be attributed to the subject property, and surrounding intensely-farmed land use for the past six decades. (§ 2.0) SUBJECT SITE AND STUDY AREA BACKGROUND INFORMATION (§ 1.1 and 1.2) Parcel area, orientations, and structures are denoted on the attached Tentative Map, found in Appendix A. The purpose of this project is to readjust four existing parcels from a total area of 85.03 acres, and propose to construct a single family residential (SFR) structure exclusively on proposed Parcel 2. The building pad for this structure has been constructed. There is no proposal to build a second unit dwelling either on Parcel 2, or on any of the remaining Parcels. Parcels 1 and 4 each have SFR structures, along with additional structures as denoted on the Tentative Map. Parcel 1 apparently has three individual septic systems. Parcel 4 apparently has one individual septic system. (§ 3.7) It is possible EHD would support second unit dwellings on proposed Parcels 1, 2, 3 and 4, for a total of eight septic systems on the subject property. Given the total acreage of 85.03 acres, eight individual septic systems would not be excessive and would contribute an extremely small volume of nitrogen in comparison to the subject property orchards. (§ 1.1 and 2.1) The subject property is located between the towns of Manteca and Escalon, one-half mile north of Highway 120. Predominate subject property use is for almond and peach orchard production. Surrounding property use consists predominately of agricultural production land, very low density single family residences,horse ranches, and other types of ag buildings. The subject property is zoned AG-40. Page -1- Chesney Consulting