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rl ) . Quik Stop Market No 121 CCI Project No 12118-2 Page 4 and MW-4) during the last year As of the December 28, 2001 MTS event (No 9), 47 29 gallons of equivalent product have been removed from the site However, due to decreasing equivalent product removal rates, which have dropped from over 9 gallons per event to the current 2 gallons, Quik Stop has decided to terminate the monthly MTS events and work toward installing a permanent remediation system Results of MTS event Nos 8 and 9 are attached in Appendix C Table 3 summarizes all the MTS events conducted at the site CCI is currently preparing a Feasibility Study and Corrective Action Plan for the subject site to determine the most effective and cost efficient remediation program for the conditions which currently impact the site The Feasibility Study and Corrective Action Plan will be submitted to the County in the near future CCI will continue to monitor the site on a quarterly basis to gather additional groundwater quality data at the site The next quarterly sample round is scheduled for April 2002 Limitations The discussion presented in this report is based on the following • 1 The observations of the field personnel, 2 The results of the laboratory analyses performed by a state certified laboratory, 3 Our understanding of the regulations of the State of California and San Joaquin County It is possible that variations in the soil or groundwater conditions could exist beyond the points explored in this investigation Also, changes in groundwater conditions could occur at some time in the future due to variations in rainfall, temperature, regional water usage, or other factors The services performed by CCI have been conducted in a manner consistent with the level of care and skill ordinarily exercised by members of our profession currently practicing under similar conditions in the Manteca area No other warranty, express or implied, is made Please note that contamination of soil and groundwater must be reported to the appropriate agencies in a timely manner CCI includes in this report chemical analytical data from a state-certified laboratory CCI has been informed that the analyses are performed according to procedures suggested by the U S EPA and the State of California CCI is not responsible for laboratory errors in procedure or results reporting