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Union Ice Company - Weber Street <br /> Phase II- Report of Findings <br /> Page 2 <br /> round water samples taken during the course of this project were taken in <br /> All soils and g protocols. These protocols are <br /> accordance with all county, state and federal by GeoAnalytical Labs of Modesto, <br /> listed in Appendix A. Lab work was done by <br /> California, a state certified laboratory. <br /> CONCLUSIONS from the <br /> Our conclusions regarding contamination to soils and ground water resulting <br /> release at this site are: <br /> units are present. Sand 1 is at about a 15 to 35 foot depth. <br /> 1. Two (2) sand <br /> Sand 2 is found at a depth of 50 to 58 f a thick clay unee it(Clay B). <br /> determined. These sand units are separated by <br /> ntered in SandI at <br /> 2. First ground water is encoufaced is feet.tlis Of 13 to 15 <br /> from t o to f vefeet�2- <br /> aquifer is slightly artesian - Piezometnc sur <br /> 5') above the top of Sand 1. <br /> 3. Ground water flow direction in the sand 1 aquifer is approximately south 45 <br /> degrees east; gradient is approximately one (1) foot of fall per 240 feet of <br /> plan distance. <br /> 4. Piezometric surface in the Sand <br /> aquifer,aquiier is about I6 feet below the <br /> Piezometric surface in the Sand <br /> ro of hSand 1 aquifer vary greatly across the site; <br /> 5. Aquifer properties the (foot. Co"efficient of storage <br /> transmissibility varies from 158 to 21,534 gpdfrom <br /> varies from 4.0XE-4 to 4.1XE- This <br /> aquifer.variability <br /> resuissnot a unifokrmssa dd <br /> lt <br /> permeability variations in the Sand 1 <br /> therefore, its aquifer properties are not uniform. <br /> removed most 6 The remedial excavation constructed i eb a ruDunt o991onmtninated soil �n <br /> the contaminated soils at this se <br /> the southeast portion was not removed. Additional work will be necessary to <br /> define the remaining contamination. <br /> 7. Evidence of up-gradient around water contamination was-detected-in clean since <br /> 1S, 1D and 65 in the Spring of 1990. These wells have sampled <br />