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7land inery process wastewater is land-surface applied in the surrounding agricultural production wned by TWG Discharge of the treated wastewater is managed by the engineering firm of Kennedy/Jenks under Waste Discharge Requirements (WDRs), as promulgated by the Central Valley Regional Water Quality Control Board. SSS§ 1.1,.1.2. As referenced, the subject property now is composed of APNs 245-260-29 and 30, designated as Parcels 1 and 2. The boundary lines pertaining to these two new Parcels are found on the Lot Line Adjustment(LLA)map, along with a Google Aerial photo, also found in Appendix A. Parcel 1 exclusively creates the specific winery area for use in the nitrate loading calculations since all domestic wastewater sources originate on this Parcel. The percolation testing protocol has found the shallow(~24") indigenous soils under the proposed effluent disposal area to contain a sandy loam (fine sandy silt with 11%clay)that appears to have been compacted by Ag machinery and implements due to comparatively slow percolation rates. The sandy loam soil near the proposed soil-effluent interface(36"-42") indicate representative pert rates for this soil type. II. SOIL SUITABILITY STUDY FINDINGS A. SUBJECT PROPERTY AND SURROUNDING STUDY AREA INFORMATION SSS§ 1.1. The Google Aerial photo illustrates the subject property. Land use to the immediate north, south, east and west is agricultural production land,primarily wine grape vineyards and almond/walnut orchards. There are surrounding rural residential units, all on onsite wastewater treatment systems and domestic wells. SSS§3.1,3.2,3.3,3.4,3.5,3.6,3.7,6.8. Application for Liquid Waste/Water Well Permits found in the EHD data base pertaining to the subject property and project exclusively, exceed fifty. Therefore, only Liquid Waste Permits issued for repairs/addition are found in Appendix I and total eight Permits. Permits applications within the one-half mile radius study area from the property were also reviewed for repairs/replacements/additions to existing septic systems. Three permits primarily for repair of leachlines were found. This can be considered a typical number of permits within a study area, particularly since rural residential units are sparse. Considering the sandy surface soils and increasing sand content with increasing depth, OWTS in this locale have comparatively long life spans. The area designated for septic tank effluent disposal is level terrain and is currently planted in vineyards. This vineyard is scheduled to be removed after this season's harvest. The stormwater infiltration pond is directly west of the proposed disposal area. Consequently,the disposal area has a specific calculated setback distance of 100 ft in compliance with EHD OWTS requirements. Page-2- Chesney Consulting