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needed to document changes in these cleanup standards (this <br /> applies to SWMU 2 as well as SWMU 4) . <br /> 2 . [Response to EPA Comment No. G4 of October 15, 1997 on Day Care <br /> Center Site] This comment has been partially addressed. <br /> Although the title of Section 5 . 8 .1 refers to the Day Care Center <br /> Site as an excavation and disposal site under a time critical <br /> removal action, the text of that section refers to the site as no <br /> further action site. Please delete " . . .therefore, the site is <br /> recommended for no further action" in the second sentence. <br /> 3 . [Table 6-4 and 6-4; Section 6.5.10 on Human Health Risks] These <br /> tables summarize current and future human health risks. The <br /> "less than" symbols used in these tables are remnants of the <br /> Baseline Risk Assessment, and refer to bias in the calculation. <br /> The footnotes to these tables which address this bias state, <br /> "Values as calculated; bias likely will not change category. " <br /> Since bias will not likely change the risk category, it will be <br /> much less confusing if all reference to bias were eliminated from <br /> this ROD. As currently written, one could easily interpret the <br /> bias discussion in Section 6 to mean that risks were incorrectly <br /> calculated in the Baseline Risk Assessment for a number of sites . <br /> Section 6 . 5.10 should be revised to eliminate discussion that <br /> risks for SWMU 3, SWMU 4, and SWMU 1/Area 2 are likely to be one <br /> category high based on bias. Instead, for SWMU 4 and SWMU 1/Area <br /> 2, the text should explain that these sites are in the 10-4 to <br /> 10-6 risk management range. The text should then provide <br /> documentation to support why a risk management decision resulted <br /> in a determination that no remedial action is deemed warranted <br /> for human health risk. For SWMU 3, since future risks are <br /> outside of the risk management range (4 x10-4; HI=10) , a risk <br /> management decision cannot be applied. Additionally, the <br /> statement in Section 6 .3 . 10 that remediation to protect human <br /> health does not apply to SWMU 3 is incorrect . Table 10-16 shows <br /> a risk based cleanup concentrations for chlordane and DDX at SWMU <br /> 3 . Please revise Section 6. 5. 10 accordingly. (This concern was <br /> discussed at the January 9, 1998 conference call . ) <br /> 4. [Response to EPA Comment No. G5 of October 15, 1997 on <br /> Groundwater] This comment has been partially addressed. <br /> a. Section 7 .3 .2 (Remedial Action Objectives) should briefly <br /> summarize (from the text in Section 7.3 . 1) why RAOs for <br /> groundwater in this ROD are limited to dieldrin, i .e. , why <br /> they do not address VOC contaminants in groundwater. For <br /> example, Section 7.3 .2 could state, "As explained in Section <br /> A-3 <br />