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  4. CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 370 ILLINOIS RECOMMENDED STANDARDS FOR SEWAGE WORKS
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SUBPART A: INTRODUCTION

Section 370.100 Purpose
Section 370.110 Scope and Applicability
Section 370.115 Incoporations by Reference

SUBPART B: ENGINEERING REPORTS, PLANS AND SPECIFICATIONS

Section 370.200 General
Section 370.210 Engineering Report
Section 370.211 Design Flows
Section 370.220 Detailed Engineering Plan Drawings Format
Section 370.230 Specifications to Accompany Detailed Engineering Plan Drawings
Section 370.240 Revisions to Approved Plans and Specifications
Section 370.250 Operation During Construction
Section 370.260 Engineers Seal

SUBPART C: DESIGN OF SEWERS

Section 370.300 General Considerations
Section 370.310 Design Basis
Section 370.320 Details of Design and Construction
Section 370.330 Manholes
Section 370.340 Sewers in Relation to Streams
Section 370.350 Protection of Water Supplies

SUBPART D: SEWAGE PUMPING STATIONS

Section 370.400 General
Section 370.410 Design
Section 370.420 Suction-Lift Pump Stations
Section 370.430 Submersible Pump Stations - Special Considerations
Section 370.440 Alarm Systems
Section 370.450 Emergency Operation
Section 370.460 Instructions and Equipment
Section 370.470 Force Mains

SUBPART E: SEWAGE TREATMENT WORKS

Section 370.500 Plant Location
Section 370.510 Quality of Effluent
Section 370.520 Design
Section 370.530 Plant Details
Section 370.540 Plant Outfalls
Section 370.550 Essential Facilities
Section 370.560 Safety
Section 370.570 Laboratory

SUBPART F: PRELIMINARY TREATMENT

Section 370.600 General Considerations
Section 370.610 Screening Devices
Section 370.620 Grit Removal Facilities
Section 370.630 Pre-Aeration

SUBPART G: SETTLING

Section 370.700 General Considerations
Section 370.710 Design Considerations
Section 370.720 Sludge and Scum Removal
Section 370.730 Protection and Service Facilities
Section 370.740 Imhoff Tanks
Section 370.750 Septic Tank - Tile System

SUBPART H: SLUDGE PROCESSING AND DISPOSAL

Section 370.800 General
Section 370.810 Process Selection
Section 370.820 Sludge Thickening
Section 370.830 Anaerobic Sludge Digestion
Section 370.840 Aerobic Sludge Digestion
Section 370.845 High pH Stabilization
Section 370.850 Sludge Pumps and Piping
Section 370.860 Sludge Dewatering
Section 370.870 Sludge Storage and Disposal

SUBPART I: BIOLOGICAL TREATMENT

Section 370.900 Trickling Filters
Section 370.910 Rotating Biological Contactors (Repealed)
Section 370.915 Rotating Biological Contactors
Section 370.920 Activated Sludge
Section 370.930 Waste Stabilization Ponds and Aerated Lagoons
Section 370.940 Intermittent Sand Filtration for Secondary Treatment

SUBPART J: DISINFECTION

Section 370.1000 General
Section 370.1010 Disinfection Process Selection
Section 370.1020 Chlorine Disinfection
Section 370.1021 Dechlorination
Section 370.1022 Ultraviolet Disinfection
Section 370.1030 Chlorine Gas Supply (Repealed)
Section 370.1040 Piping and Connections (Repealed)
Section 370.1050 Housing (Repealed)
Section 370.1060 Respiratory Protection Equipment (Repealed)
Section 370.1070 Application of Chlorine (Repealed)
Section 370.1080 Sampling and Testing

SUBPART K: TERTIARY FILTRATION

Section 370.1100 Applicability
Section 370.1110 Type
Section 370.1120 High Rate Filtration
Section 370.1130 Low Rate Intermittent or Periodically Dosed Sand Filters

SUBPART L: NUTRIENT REMOVAL

Section 370.1200 Phosphorus Removal by Chemical Treatment
Section 370.1210 Ammonia Control

Section 370.APPENDIX A Table No. 1 – Resident Occupancy Criteria
Section 370.APPENDIX B Table No. 2 – Commonly Used Quantities of Sewage Flows From Miscellaneous Type Facilities
Section 370.APPENDIX C Table No. 3 – Air Test Table for Sanitary Sewer Leakage Testing*
Section 370.APPENDIX D Figure No. 1 - Design of Sewers – Ratio of Peak Flow to Daily Average Flow
Section 370.APPENDIX E Figure No. 2 – Primary Settling
Section 370.APPENDIX F Figure No. 3 – B.O.D. Removal Single Stage Trickling Filter Units Including Post Settling – No Recirculation Included
Section 370.APPENDIX G Figure No. 4 – Break Tank Sketch for Potable Water Supply Protection
Section 370.APPENDIX H Old Section Numbers Referenced (Repealed)
AUTHORITY: Implementing Sections 4 and 39 and authorized by Section 39 of the Environmental Protection Act [415 ILCS 5/4 and 39].
SOURCE: Adopted at 4 Ill. Reg. 14, p. 224, effective March 31, 1980; codified at 8 Ill. Reg. 19430; recodified at 18 Ill. Reg. 6375; amended at 21 Ill. Reg. 12444, effective August 28, 1997. NOTE: In this Part, superscript numbers or letters are denoted by parentheses; subscript are denoted by brackets.