A link to IDEM’s 2018 screening level tables (Tables A-6 and A-7) is, or soon will be, available on the IDEM Screening and Closure Level Tables webpage here.
IDEM’s 2018 Screening Level Table is effective beginning March 7, 2018. The six-month transition period ends September 7, 2018. The explanatory text is unchanged from 2017. The 2018 version of Table A-6 includes all of the chemicals found in the 2017 table with the exception of barium chromate, calcium chromate, lead chromate, sodium dichromate and strontium chromate. Table A-6 contains new entries for the following chemicals: o-aminophenol, 1-bromo-3-fluorobenzene, 1-bromo-4-fluorobenzene, 1-bromopropane, 2,2-difluoropropane, diphenyl ether, guanidine nitrate, 4-methyl-2-pentanol, and p-toluic acid. The name for 4-(2,4-dichlorophenoxy)-butyric acid was changed to 4-(2,4-dichlorophenoxy)-butanoic acid. Perfluorobutane sulfonate (PFBS) was changed to perfluorobutane sulfonic acid (PFBS), and perfluorobutanesulfonate was added with the same parameters as PFBS. The table also incorporates updates by the U.S. EPA, including new toxicity parameters for benzo(a)pyrene, 1,2,3-trimethylbenzene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene (as previously announced last year), and 51 pesticides.
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