On December 3, 2020, the Board adopted final amendments to its wastewater pretreatment rules at 35 Ill. Adm. Code 310. The amendments are “identical in substance” to actions taken during the first half of 2020 by the United States Environmental Protection Agency (USEPA). Specifically, on April 15, 2020, USEPA revised its National Pollutant Discharge Elimination System (NPDES) electronic reporting (eReporting) rule for municipal separate storm sewer systems (MS4s). Some accompanying revisions to more general aspects of the NPDES eReporting rule also affected reporting for the wastewater pretreatment program. The Board’s amendments incorporated those general reporting revisions into the Illinois rules.
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