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22222 I. INTRODUCTION Captain Frank Morgan and his wife Melinda, are the owners and developers of the proposed Camp Gold Star, LLC (CGS) project to be constructed at the location referenced on the Title Page. The project is situated at the north end of McDonald Island, nine miles west of Stockton in the Sacramento-San Joaquin River Delta(a.k.a. The California Delta). Found in Appendix B, are detailed summaries of the Hero Lodge/Camp Gold Star, the Story of the CGS Waterfront Resort & Marina(see also www.campgoldstar.com), and Floor Plans for the 25 Hero Rental Lodges. The San Joaquin County Environmental Health Department(EHD)has specified several requirements for this project which are promulgated in two EHD Directive Letters, dated December 9, 2024 and August 5, 2025, and found in Appendix A. In addition to the required Soil Suitability/Nitrate Loading Studies, the CGS project also includes the following improvements related to the EHD requirements and to this EHD Studies report: • Wastewater Collection System • Wastewater Package Treatment Plant(PTP) • On-site Disposal of Treated Wastewater Effluent • Holding Tank for Marina Vessel Waste Pump-out • New Public Well • Public Well Water Treatment System for Manganese and Iron Soil testing in the proposed effluent disposal area reveals a medium soil permeability. The soils also exhibited surprising denitrification capacity. The Nitrate Loading Study calculations indicate this project will exceed the Maximum Contaminant Level (MCL) of 10 mg/L for nitrate-nitrogen. This is inconsequential since the generated wastewater will be treated to the applicable nitrogen standards before disposal to the soil. Secondly, the California Delta is a delicate ecosystem and a National Heritage Area that is to be environmentally protected through Best Available Technology (BAT). An existing domestic well is located near the west property boundary. This well will be used for non-potable, on-site service such as wash-down water from hose-bibs in various locations. A new well to provide potable water is proposed. The project has a number of area constraints that do not allow sufficient setback distances between the onsite wells and nearby septic tanks. Consequently, under Section 11 of the EHD Onsite Waste- water Treatment Systems Standards, a monitoring design is referenced to support the requested variances. The setback variance is detailed in Summary Section X of this report. II. SOIL SUITABILITY STUDY FINDINGS The property is currently vacant except for the aforementioned domestic well within a pump house and an electrical meter serving the Delta Yacht Club, directly across the San Joaquin River from the subject property. The Delta Yacht Club has a holding tank designed to collect and store domestic wastewater, to be pumped out land-side and transported to a wastewater treatment facility. There has never been past residential and/or commercial use of the property and therefore no on-site septic tanks. The property has apparently never been farmed. Page -1- Chesney Engineering, Inc.