TITLE 35: ENVIRONMENTAL PROTECTION SUBTITLE C: WATER POLLUTION CHAPTER I: POLLUTION CONTROL BOARD PART 301 INTRODUCTION The General Assembly's Illinois Administrative Code database includes only those rulemakings that have been permanently adopted. This menu will point out the Sections on which an emergency rule (valid for a maximum of 150 days, usually until replaced by a permanent rulemaking) exists. The emergency rulemaking is linked through the notation that follows the Section heading in the menu. View Entire Part Section 301.101 Authority (Repealed) Section 301.102 Policy Section 301.103 Repeals (Repealed) Section 301.104 Analytical Testing Section 301.105 References to Other Sections (Repealed) Section 301.106 Incorporations by Reference Section 301.107 Severability Section 301.108 Adjusted Standards (Repealed) Section 301.200 Definitions Section 301.205 Act Section 301.210 Administrator Section 301.215 Agency Section 301.220 Aquatic Life Section 301.221 Area of Concern Section 301.225 Artificial Cooling Lake Section 301.230 Basin Section 301.231 Bioaccumulative Chemicals of Concern Section 301.235 Board Section 301.240 CWA Section 301.245 Calumet River System Section 301.247 Chicago Area Waterway System Section 301.250 Chicago River System Section 301.255 Combined Sewer Section 301.260 Combined Sewer Service Area Section 301.265 Construction Section 301.267 Conversion Factor Section 301.270 Dilution Ratio Section 301.275 Effluent Section 301.280 Hearing Board Section 301.282 Incidental Contact Recreation Section 301.285 Industrial Wastes Section 301.290 Institute (Repealed) Section 301.295 Interstate Waters Section 301.300 Intrastate Waters Section 301.301 Lake Michigan Lakewide Management Plan Section 301.305 Land Runoff Section 301.307 Lower Des Plaines River Section 301.310 Marine Toilet Section 301.311 Method Detection Level Section 301.312 Minimum Level Section 301.313 Metals Translator Section 301.315 Modification Section 301.320 New Source Section 301.323 Primary Contact Recreation Section 301.324 Non-contact Recreation and Non-recreational Section 301.325 NPDES Section 301.330 Other Wastes Section 301.331 Outlier (Repealed) Section 301.335 Person Section 301.340 Pollutant Section 301.341 Pollutant Minimization Program Section 301.345 Population Equivalent Section 301.346 Preliminary Effluent Limitation Section 301.350 Pretreatment Works Section 301.355 Primary Contact Section 301.356 Projected Effluent Quality Section 301.360 Public and Food Processing Water Supply Section 301.365 Publicly Owned Treatment Works Section 301.370 Publicly Regulated Treatment Works Section 301.371 Quantification Level Section 301.372 Reasonable Potential Analysis Section 301.373 Same Body of Water Section 301.375 Sanitary Sewer Section 301.380 Secondary Contact Section 301.385 Sewage Section 301.390 Sewer Section 301.395 Sludge Section 301.400 Standard of Performance Section 301.405 STORET Section 301.410 Storm Sewer Section 301.411 Total Maximum Daily Load Section 301.413 Total Metal Section 301.415 Treatment Works Section 301.420 Underground Waters Section 301.421 Wasteload Allocation Section 301.425 Wastewater Section 301.430 Wastewater Source Section 301.435 Watercraft Section 301.440 Waters Section 301.441 Water Quality Based Effluent Limitation Section 301.442 Wet Weather Point Source Section 301.443 Whole Effluent Toxicity Section 301.APPENDIX A References to Previous Rules (Repealed)

AUTHORITY: Implementing Section 13 and authorized by Section 27 of the Environmental Protection Act [415 ILCS 5/13 and 27].

SOURCE: Filed with the Secretary of State January 1, 1978; amended at 3 Ill. Reg. 25, p. 190, effective June 21, 1979; amended at 5 Ill. Reg. 6384, effective May 28, 1981; codified at 6 Ill. Reg. 7818; amended in R88-1 at 13 Ill. Reg. 5984, effective April 18, 1989; amended in R88-21(A) at 14 Ill. Reg. 2879, effective February 13, 1990; amended in R99-8 at 23 Ill. Reg. 11277, effective August 26, 1999; amended in R02-11 at 27 Ill. Reg. 158, effective December 20, 2002; amended in R08-9(A) at 35 Ill. Reg. 15071, effective August 23, 2011; amended in R11-18 at 36 Ill. Reg. 18863, effective December 12, 2012; amended in R18-23 at 47 Ill. Reg. 4415, effective March 23, 2023.