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Monitoring Report.Compliance Checklist <br /> 4 <br /> Discharges Regulated by Title 27 and/or Part 258 <br /> Reference Parameter Yes No N/A Reviewer Comment <br /> WDRs u. Is there a summary of the monitoring X <br /> Standard results indicating any changes made <br /> Provisions or observed since the previous annual <br /> == <br /> (1993,1997,2000) report? X <br /> v. Is there an evaluation of the <br /> effectiveness of the leachate <br /> monitoring/control facilities? <br /> X <br /> Standard w. Is there a discussion about the <br /> Provisions annual LCRS testing and a <br /> (April 2000) comparison to earlier testing? <br /> or check WDRs <br /> Compliance Achieved? (check one) Yes— No <br /> If No, check all issues that apply and provide comments: <br /> Incomplete transmittal letter Comments (to be entered into SWIM). <br /> Incomplete report <br /> Inadequate monitoring program <br /> New release <br /> Inadequate response to evidence of a release <br /> WDRs violation other than listed above <br /> Other(explain in comments) <br /> Additional Comments and Recommendations: <br /> Comment 2.m.= 1"Quarter report states in Conclusions, "Infiltration of plant process water is likely responsible for <br /> the elevated conductivity levels measured in the semiperched aquifer(Figure 5). The sources of the elevated <br /> conductivity measured along the northern boundary of the property in the semiperched and upper aquifers are <br /> unknown(Figures 6 and 7)." Based on the summarized data and time series graphs there also is a trend of increasing <br /> levels in chloride and sodium in the semiperched aquifer. This issue was discussed in the Regional Boards inspection <br /> on 21 October 2003 with Fox River staff. Additional time series graphs are attached to delineate Regional Board's <br /> concerns. Early data show that levels of sodium at OB-2 started at 9.2 mg/L in 1992. The highest detection was 1330 <br /> mg/L(this does not appear to be an outlier due to other high values in other wells and other constituents). <br /> Regional Board staff recommended Fox River sample and analyze all COCs in the plant's waste water as the source(s), <br /> which should be performed and included in the Annual 2003 report along with an evaluation of the data with regards <br /> to impacts to groundwater. <br /> /K <br /> RWQCB Staff Signature: �J <br /> Date: 22 October 2003 <br />