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Union Ice Company, 425 North Union Street, Stockton, California <br /> 16 Phase II Revised Site Assessment, Installation of Oct 28, 1993 <br /> Monitoring Wells and Quarterly Groundwater Report Page. 6 <br /> 1 <br /> gradient is supported by the position of the contamination plume at 65 feet in relationship <br /> to the former Tank#3 <br /> Some fingers of residual contamination also exists in the Tank #4 remedial excavation <br /> sidewalls between 15 and 20 feet below ground level The floor samples were non detect, <br /> as were all samples in MW-3 (Figure 2A) <br />' To define the limits of Tank #3 contamination, it will be necessary to drill a minimum of <br /> two properly positioned borings to sample both soil and groundwater to the east and <br /> northeast of the contamination plume as shown on Figure 7 These borings would, of <br /> course, be located in the middle of Union Street - a fairly high volume traffic area <br /> The above represents our best professional opinion as to environmental conditions at this <br /> site These opinions were derived Lisirg data at hand, and using standards of care common <br /> to the environmental consulting community in Northern California Additional work or <br /> sampling at this site may generate data that could lead to a change of opinion regarding <br /> site conditions or appropriate site remediation procedures, or bo <br /> �y�►i R�N,3j�,ry <br /> Prepared by 4wo ��-�E FUR�y <br /> No 01079 <br /> Steven J Furnas, REA Expires.6-5a r l <br /> Registered Environmental Assessor# 01079 <br /> r.,aLtF���A <br /> 6� <br /> i �p�GATBr� dd�` <br /> uai yw4 <br /> 4613 <br /> i <br /> AIPG <br /> oui smith, C <br /> Certified Professional Geologist # 4613 <br /> I/S <br /> 9- E~SSfp <br /> 06 <br /> NO <br /> c� 22 339 <br /> Le a ano, # 22339 Exp s,.a 7 .O <br /> California Registered Civil Engineer Sj, CMIV <br /> 9 <br /> OrCN <br />