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10. Table 5.3-3: The table does not show data for EW033AU, although this <br /> well is shown on Figure 5.3-7. For clarity, please revise the Report to <br /> resolve this discrepancy. <br /> 11. Table 5.4-1: The table shows a comparison between design flow rates for <br /> the two treatment systems and actual flow rates. However, the Report <br /> does not indicate why the actual flow rates are 77% and 388, <br /> respectively, lower than the design flow rates. For clarity, please <br /> revise the Report to include an explanation for why the actual flow <br /> rates are so much lower than the design flow rates. <br /> 12. Table 5.4-4: The table indicates that the stripping tower packing <br /> material for both treatment plants is unknown. Since the packing <br /> material is an essential component of the air stripper design, please <br /> revise the Report to provide the type of packing material. <br /> 13. Figure 5.3-1: The figure indicates that EW037AU was operational during <br /> 3Q99, however, according to Section 5.3.3.7 (Page 5-3) , "EW037AU is not <br /> operational and should remain shutdown". Therefore, please revise the <br /> figure to indicate that EW037AU did not operate during 3Q99. <br /> 14 . Figure 5.3-7: The figure indicates that only one extraction well was <br /> operating during all four quarters (treatment plant #1) . It is unclear, <br /> why the extraction wells were not operating year-round. For clarity, <br /> please provide the rationale for not continuously operating all <br /> extraction wells or indicate on the figure that no data is provided <br /> because of operation and maintenance issues, if appropriate. <br /> 15. Tables 6.4-1 and 6.4-2: Discrepancies between the two tables were <br /> observed for the following wells: EW005AUA, EW010AU, EW030C, EW035AU, <br /> EW037AU, EW040AU through EW044AU, LM003AA, LM015AA, LM017AA, LM019A, <br /> LM25AUA, LM29B, LM036A, LM050A, LM052D, LM053A, LM062AU, LM066A, LM079B, <br /> LM092CC, LM093AU, LM097AU, LM129A, LM166AU, LM168AU, LM174AU, PW004, and <br /> WSWO07 through WSW009. <br /> In addition, no explanation was provided as to why no PCB sampling is <br /> proposed at LM116A through LM118A and why no metals sampling is proposed <br /> at LM120A in 2000. <br /> Furthermore, no information is provided as to what the sampling <br /> frequency will be once LM150 through LM153 are installed. <br /> Lastly, the proposed sampling frequency for LM019A in 2000 is "none" <br /> because of a broken casing. However the Report does not indicate, what <br /> sampling frequency will be established once the broken casing has been <br /> repaired. <br /> 5 <br />