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[1] INTRODUCTION This Soil Suitability Study presents the results of our investigation concerning the soil strata and groundwater under the above-referenced subject property. Our study was completed to 1.) Determine if the homesite Parcel that is being split-off remains acceptable for a septic system which will function properly for its anticipated lifespan, 2.)Test water from the on-site domestic well for nitrate and the agrichemical DBCP/EDB, and 3.) Provide recommendations based upon the environmental criteria encountered in this study. Our report is in compliance with the requirements for a Soil Suitability Study under Development Title Section 9-1105.2 Item (d)of the San Joaquin County Ordinance Codes. 121 SUBJECT SITE AND STUDY AREA BACKGROUND INFORMATION j The subject property is currently zoned AG 40 and will consist of two Parcels: Parcel I will be the residential parcel that contains an existing home with a well and septic system, and will be 2.75 acres. The remaining Parcel is referenced as the "Designated Remainder" and will be 282 acres. It is currently planted in alfalfa which is harvested as feed for the Martin Dairy. Attached, is the Tentative Parcel Map illustrates the designations and orientation of the subject Parcels. As noted on the Tentative Parcel Map, there are two buildings on Parcel 1 and three small existing farm buildings on the Designated Remainder. The topography of the site is flat; therefore, no design criteria for slopes would have to be incorporated into a possible repair, or for a new septic system. On-site stormwater drainage flows north, south, west, and to the east toward Davis Road. Drainage does not appear to affect the existing septic system and the property is not subject to the 100-year flood. The property is located north of the city of Stockton and south of the city of Lodi. The study area consists predominately of agricultural production land - primarily row crops, vineyard and pasture land. Surrounding structures consist of low density single family housing, residential ranchettes, bams and commercial facilities such as nurseries. Sewer hookups for the houses on North Davis Road to the City of Lodi will be decades away, if ever. A review of Application Permits on file with the San Joaquin County Environmental Health Department shows there have been 12 Applications for Repairs/Additions to septic systems within the one mile radius study area,with particular emphasis to houses on North Davis Road. These applications were for additional leachline drainage, sumps and seepage pits. Twelve septic system repairs and additions within the study area can be considered a very high number. Although there is sandier soil at the nine-foot depth, the shallower soils apparently are not conducive for acceptable, long-term sewage effluent management. Normally, actual photocopies of the permit applications are included with the Soil Suitability Study Report. Since the microfiche machine at the Health Department was broken, the following Table illustrates these additions/repairs. ad . 1 Vh4ey Ag Research