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Silgan Containers Corporation <br /> 1815 Navy Drive, Stockton - 2 - 30 July 2002 <br /> monitoring and sampling will be necessary to establish seasonal fluctuations and trends in the <br /> concentration data. The Q2-2002 quarterly monitoring report is due to this office by 31 July 2002. <br /> 3. Due to the discrepancy in the groundwater flow direction between the last two sampling events,you <br /> may elect to resurvey the monitoring well locations, and recalculate groundwater elevations and flow <br /> directions. <br /> 4. The groundwater monitoring and reporting section of the Investigation Report is incomplete. To allow <br /> a simple review of the data, please include the following items in all future monitoring and sampling <br /> reports submitted to this office: <br /> • Purge data sheets to record water levels, purge volumes,and groundwater parameters; <br /> • Analytical data for all monitoring wells used for this investigation (e.g., include wells GW-3, <br /> PW-1,and PW-2 in Table 3), and show detection limits for constituents that are non-detect <br /> (e.g.,ND<5.0); and <br /> • A complete table with historical depth to water measurements, and calculated water level <br /> elevations. <br /> Please be aware that Article 12 was added to the Underground Storage Tank Regulations corresponding to <br /> Sections 2729 and 2729.1 of the California Code of Regulations requiring Responsible Parties to submit <br /> analytical and site data electronically. Enclosed is our letter(Required Electronic Deliverable Format for <br /> Laboratory and Site Data Submittals to Regulating Agencies), explaining how to obtain information to <br /> implement the requirements. To date we have not received the electronic data for your site. This information <br /> must be submitted as part of all future quarterly groundwater monitoring and sampling reports. Reports <br /> submitted without electronic data will be considered incomplete. <br /> Please contact me at least five business days prior to any site work or sampling to schedule a field inspection <br /> appointment. If you have any questions or comments,please call me at(916)255-3115. <br /> Martyartzell, R.G. <br /> Associate Engineering Geologist <br /> attachment <br /> cc(w/o attch): Ms. Margaret Lagorio, San Joaquin County Environmental Health Department, Stockton <br /> cc(w/attch): Mr. Bob Bennett, Silgan Containers Corporation,Riverbank <br /> Mr. Rick Caporale,Principal Chemist, Enfra LLC,Anaheim <br />