Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 653 - DESIGN, OPERATION AND MAINTENANCE CRITERIA
Subpart F - CHLORINATION
Section 653.602 - Testing Equipment for Residual Chlorine
Universal Citation: 35 IL Admin Code ยง 653.602
Current through Register Vol. 48, No. 38, September 20, 2024
a) Residual chlorine shall be determined by methods in "Standard Methods for the Examination of Water and Wastewater", 15th edition.
b) Colorimetric determinations of chlorine residuals shall be made using the DPD methods.
c) The test equipment used shall be capable of indicating values of 0.1, 0.2, 0.3, 0.4, 0.5, 0.7, 1.0, 2.0, mg/l and higher if chlorine is applied for taste and odor control.
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