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a_�� GEOTHASE <br /> ENVIRONMENTAL <br /> REPORT <br /> Soil Suitability and Nitrate Loading Study <br /> OAK FARM WINERY,23627 N. DEVRIES RD., LODI, CA <br /> (APN 003-140-03) <br /> (PA-1200192) <br /> OPE Prui;ect No. 670.l C <br /> June 17,2013 <br /> 1.0 INTRODUCTION&PROPOSED DEVELOPMENT <br /> The property is currently the site of a residence, wme cellar,and an area for use in gatherings <br /> for special occasions such as weddings. The Parser part of the parcel will remain in use as a <br /> vineyard'. "Ihe owner of the site is proposing a new wine making facility and tasting room <br /> The existing,tasting room will be converted to other uses. The wine making facility will be <br /> sen+ed by a new septic sewage system- This report is intended to provide information <br /> required by Section 9-1105 of San Joaquin County Ordinance in connection with a proposed <br /> new septic sewage system to be constructed on the site. The study is needed to determine if <br /> the onsite soils are adequate to handle effluent from the septic system and whether nitrates <br /> from the effluent might affect the underlying groundwater. <br /> The information discussed in this report includes the results of a recently conducted <br /> percolation test, a description of on-site soils, sample analytical results from the on-site water <br /> well and general information regarding the sail and groundwater from publicly available <br /> sources. Calculations are made to estimate the total nitrate load from septic tank effluent. <br /> 1.1 Site Description <br /> The site is aui odd-shaped parcel with a total area of 31 acres). It is in agricultural use, and <br /> according to the-County GIS mapping system, is zoned AG-40. The site is identified by the <br /> County assessor as Parcel 003-040-63. In the land survey grid it lies in the NE 164 of <br /> Section 18 of T4N_ R6E, NII)B&M. It is situated on the west side of DeVries Road about 3'4 <br /> of a mile north its intersection with Peltier Road. The site is about 4 miles northwest of the <br /> town Lodi in the northern part of San Joaquin County The area is in predominantly <br /> agricultural use. <br /> 2937 Venemm Avg,4B240 Geo.11haw F.neirmmental lac Mime ('.09uei-uw: <br /> Modeam,CA 95356 Furs: i'Rr3i5e'+-n,•;: <br />