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Soil Suitability Study 33233 S. Koster Rd., Tracy, CA Page 5 <br /> Section 4.5 Description of How Sample was Obtained Handled Stored and Transported to the <br /> Laboratory <br /> Samples were taken at the well head by H. B. Dietz, a California-Licensed Water Distribution <br /> System Operator. A copy of his current license is attached (see Appendix). The samples were <br /> discharged into 500 ml. plastic sample bottles and placed under Chain of Custody control. The <br /> sample bottles were then refrigerated and transported to Geo Analytical Laboratory in Modesto, <br /> California for analysis. Geo Analytical Laboratory is certified by the California Department of <br /> Health Services to perform the test cited above. <br /> Section 4.6 Complete Chain of Custody Document <br /> The Chain of Custody Document for the groundwater samples recovered from Well No. 1 and <br /> Well No. 2 are included in the attached Subsurface Contamination Repyirtsee Appendik). <br /> SECTION 5.0: SOIL PROFILE INFORMATION <br /> Section 5.1 Site Map Showing Location With Dimensions of The Soil Profile Pits on The Parcel <br /> r <br /> Soil profiles were taken to a depth of 6 to 8 feet on each of the three parcels into which it is <br /> proposed to divide the property. <br /> The locations of the three soil profile pits are shown on Figure 3. <br /> Section 5.2 Description of Soil Profile Pit Including Depth and Dimensions <br /> Parcel No.I — The test pit on Parcel 1 was 18 feet deep and 30 x 35 feet in plan area. It was <br /> excavated as part of the construction of the recreation building <br /> Parcel No. 2—The test pit on Parcel 2 was approximately 8 feet deep and was 20 feet long and 4 — <br /> feet wide. It was excavated during removal of an irrigation pipeline. <br /> Designated Remainder— The test pit on the Designated Remainder had a depth of approximately <br /> _ 8 feet and was 40 by 50 feet in plan area. It was excavated during construction of a flood <br /> irrigation tail-water detention pond. <br /> Section 5.3 Description of Soil Lithology as Noted From Test Pits <br /> As exposed in the test pits, except for a shallow surficial layer (of varying depth up to <br /> approximately one foot below the ground surface) of topsoil containing humus and organic <br /> material (Unified Soil Classification System Symbol OL), the soil over the whole area of the <br /> property consists of silty clay (Unified Soil Classification System symbol CL) to a depth of at <br /> least 8 ft. It is free of debris, fill, or any stream bed deposits. <br />