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i I. INTRODUCTION This report issues my findings regarding the Nitrate Loading Study and Soil Suitability completed for the subject property under examination, located at 3703 West Grant Line Road in Tracy, California. These Studies have been completed exclusively for a General Plan Amendment/Re- Zone. There is no project proposed for the property at this time. Therefore, the purpose of these Studies is to provide the San Joaquin County Environmental Health Department (EHD) with all of the required information pertaining to the current status of the soil,water table and groundwater in relation to nitrate loading potential from a future on-site wastewater disposal system. These studies comply with San Joaquin County Development Title, Section 9-1105.2(d). Mr. Barjinder Singh is the owner of the property and has provided the preliminary information to complete these Studies. Within the text of this Report, Bolded Section (§) numbers are referenced at the beginning of an applicable Paragraph(s), or Appendices that correspond with the EHD Requirements Checklist. Section Numbers referenced as SSS§, are sections applicable for the Soil Suitability Study Requirements Checklist. Section Numbers referenced as NLS§, are sections applicable for the Nitrate Loading Study Requirements Checklist. Other portions of text may also apply to other sections of the Checklists. NLS 2.3 SSS 3.15 The subject r § § bj ct p operty is in what is referred to as the Banta area of Tracy, since/ it is not actually in the town of Banta. Sewer facilities a've no and probably will not expand to this area. Consequently, domestic wastewater must be by small decentralized wastewater management systems, or septic systems. An on-site septic system exists for a single family residential structure presently on the property, and a domestic well also exists ne t ent of the property. Domestic water for any future project is proposed to be supplied by `n on-site w 11jp--- be drilled in a location that will meet issues such as setback requirements. SSS§ 1.2: The property is outside of any incorporated city limits and is therefore considered a County project. Currently, the property contains the aforementioned house, a large detached garage-type structure, a domestic well in the backyard of the house, all as illustrated by the aerial EHD Parcel Viewer Maps. Total Parcel area is 1.03 acres. The following is a summarization of the information collected to complete these Studies and preliminarily fulfill the requirements of EHD. Wastewater system operational parameters are also Ik preliminarily discussed within this report to supply additional information to EHD: f 0 Since these Studies have been conducted specifically for a General Plan Amendment/Re-Zone Application, the primary disposal area and the required 100%reserve/replacement/addition areas f that may eventually serve a commercial project have not been described,but will be illustrated on a project Site Plan. • The capacity of the on-site soils were analyzed: 1.)For the ability to accept future wastewater effluent flows, 2.)To assess the characteristics of the on-site soil to mitigate nitrate impact, and 3.) To quantify nitrate impact to the underlying groundwater table from percolating effluent and relate impact to the Porter-Cologne Water Act. This was accomplished by the referenced testing. 1 Chesney Consulting