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5'1 <br /> FlnAlthough ultimate wastewater flow volumes emanating from the completed project are unknown,the average daily flow (ADF) volume was formulated using all available parameters acceptable to <br /> EHD, Average daily flow effluent volumes from the winery are expected to be extremely small dueto an anticipated number of five customers on a daily basis, and with one person working within thewinery itself. <br /> mmary, the testing and investigation has found the indigenous surface soil at 36 inches indicates <br /> a hardpan strata that is impermeable. Just six inches deeper, at 42 inches, which is typical leachline > J <br /> depth, the soils are permeable. These two determinations are based upon percolation test results. <br /> Below five feet, a fine sandy, silty clay extends all the way down to 25 feet in depth. During drilling <br /> procedures it was observed that the subsurface soil was too saturated to pere test, with an assurance <br /> of failing rates. The EHD was consulted and the determination was made by EHD to install two <br /> additional seepage pits for the new winery facility. From the EHD microfiche septic system permit <br /> documents, it appears that four seepage pits are existing, with one leachline. <br /> Within the text of this Report, Bolded Section (§)numbers are referenced at the beginning of an applicable <br /> Paragraph or Paragraphs, Appendix or Table of Contents that correspond with the EHD Requirements <br /> Checklist. Section Numbers referenced as SSS§, are sections applicable for the Soil Suitability Study <br /> Requirements Checklist. Section Numbers referenced as NLS§, are sections applicable for the Nitrate <br /> Loading Study Requirements Checklist. Other portions of text may also apply to other sections of the <br /> Checklists. <br /> II. SOIL SUITABILITY STUDY FINDINGS <br /> A. SUBJECT PROPERTY AND SURROUNDING STUDY AREA INFORMATION <br /> SSS§ 1.1. Surrounding land use to the north, south, east and west of the project is, and has been, in <br /> a riculturalproduction for many decades, primarily vineyards. Single family residential structures <br /> and ranchettes surround the property, all on decentralized wastewater management systems. The , <br /> property is zoned AG-40, Agricultural. <br /> SSS§ 3.1, 3.2, 3.3, 3.4, 3.5, 3.6. Applications on microfiche file with the EHD reveal that there f: <br /> have been seven permits issued for repairs/additions to existing systems within a one-half mile radius <br /> surrounding the project site. This is a high number of permits and is probably due to the subsurface <br /> soil structure being composed mostly of saturated sandy clays. Additionally, these repairs/additions <br /> may be due to inadequately-sized systems that were initially installed. The project site has level ?. ; <br /> terrain; consequently, there will be no need to incorporate design considerations for slopes within the <br /> disposal area. <br /> B. SOIL PHYSICAL CHARACTERISTICS AND ANALYTICAL TEST RESULTS <br /> The United States Department of Agriculture - Soil Conservation Service (USDA-SCS) indicates the <br /> on-site soils to consist of a Tokay fine sandy loam (#256). This soil is very well drained and has <br /> moderate permeability. This moderate permeability appears to be below the thinly encountered �J <br /> hardpan at 36 inches, as demonstrated by the percolation test results. <br /> 2 <br /> Chesney Consulting <br />