Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 611 - PRIMARY DRINKING WATER STANDARDS
Subpart I - DISINFECTANT RESIDUALS, DISINFECTION BYPRODUCTS, AND DISINFECTION BYPRODUCT PRECURSORS
Section 611.380 - General Requirements
Current through Register Vol. 48, No. 38, September 20, 2024
a) This Subpart I Constitutes NPDWRs
b) This subsection (b) corresponds with 40 CFR 141.130(b), which recites past implementation deadlines. This statement maintains structural consistency with the corresponding federal rules.
c) Qualified personnel complying with 35 Ill. Adm. Code 681 must operate the water system for each CWS or NTNCWS supplier subject to subsection (a).
d) Controlling Disinfectant Residuals. Notwithstanding the MRDLs in Section 611.313, a supplier may increase residual disinfectant levels of chlorine or chloramines (but not chlorine dioxide) in its distribution system to a level and for a time necessary to protect public health, to address specific microbiological contamination problems caused by circumstances such as distribution line breaks, storm run-off events, source water contamination events, or cross-connection events.
BOARD NOTE: This Section derives from 40 CFR 141.130.