SUBPART A. GENERAL PROVISIONS

§ 310.101. Applicability

§ 310.102. Objectives

§ 310.103. Federal Law

§ 310.104. State Law

§ 310.105. Confidentiality

§ 310.106. Electronic Reporting

§ 310.107. Incorporations by Reference

§ 310.110. Definitions

§ 310.111. New Source

§ 310.112. Significant Industrial User

SUBPART B. PRETREATMENT STANDARDS

§ 310.201. General Prohibitions

§ 310.202. Specific Prohibitions

§ 310.210. Local Limits Developed by POTW

§ 310.211. Status of Local Limits

§ 310.220. Categorical Standards

§ 310.221. Source Category Determination Request

§ 310.222. Deadline for Compliance with Categorical Standards

§ 310.230. Concentration and Mass Limits

§ 310.232. Dilution Prohibited as a Substitute for Treatment

§ 310.233. Combined Waste Stream Formula

SUBPART C. REMOVAL CREDITS

§ 310.301. Special Definitions

§ 310.302. Authority

§ 310.303. Conditions for Authorization to Grant Removal Credits

§ 310.310. Calculation of Revised Discharge Limits

§ 310.311. Demonstration of Consistent Removal

§ 310.312. Provisional Credits

§ 310.320. Compensation for Overflow

§ 310.330. Exception to POTW Pretreatment Requirement

§ 310.340. Application for Removal Credits Authorization

§ 310.341. Agency Review

§ 310.343. Assistance of POTW

§ 310.350. Continuation of Authorization

§ 310.351. Modification or Withdrawal of Removal Credits

SUBPART D. PRETREATMENT PERMITS

§ 310.400. Preamble

§ 310.401. Pretreatment Permits

§ 310.402. Time to Apply

§ 310.403. Imminent Endangerment

§ 310.410. Application

§ 310.411. Certification of Capacity

§ 310.412. Signatures

§ 310.413. Site Visit

§ 310.414. Completeness

§ 310.415. Time Limits

§ 310.420. Standard for Issuance

§ 310.421. Final Action

§ 310.430. Conditions

§ 310.431. Duration of Permits

§ 310.432. Schedules of Compliance

§ 310.441. Effect of a Permit

§ 310.442. Modification

§ 310.443. Revocation

§ 310.444. Appeal

SUBPART E. POTW PRETREATMENT PROGRAMS

§ 310.501. Pretreatment Programs Required

§ 310.502. Deadline for Program Approval

§ 310.503. Incorporation of Approved Programs in Permits

§ 310.504. Incorporation of Compliance Schedules in Permits

§ 310.505. Reissuance or Modification of Permits

§ 310.510. Pretreatment Program Requirements

§ 310.511. Receiving Electronic Documents

§ 310.521. Program Approval

§ 310.522. Contents of Program Submission

§ 310.524. Content of Removal Allowance Submission

§ 310.531. Agency Action

§ 310.532. Defective Submission

§ 310.533. Water Quality Management

§ 310.541. Deadline for Review

§ 310.542. Public Notice and Hearing

§ 310.543. Agency Decision

§ 310.544. USEPA Objection

§ 310.545. Notice of Decision

§ 310.546. Public Access to Submission

§ 310.547. Appeal

SUBPART F. REPORTING REQUIREMENTS

§ 310.601. Definition of Control Authority [Repealed]

§ 310.602. Baseline Report

§ 310.603. Compliance Schedule

§ 310.604. Report on Compliance with Deadline

§ 310.605. Periodic Reports on Compliance

§ 310.606. Notice of Potential Problems

§ 310.610. Monitoring and Analysis

§ 310.611. Requirements for Non-Categorical Users

§ 310.612. Annual POTW Reports

§ 310.613. Notification of Changed Discharge

§ 310.621. Compliance Schedule for POTWs

§ 310.631. Signatory Requirements for Industrial User Reports

§ 310.632. Signatory Requirements for POTW Reports

§ 310.633. Fraud and False Statements

§ 310.634. Recordkeeping Requirements

§ 310.635. Notification of Discharge of Hazardous Waste

§ 310.636. Annual Certification by Non-Significant Categorical Users

§ 310.637. Receiving Electronic Documents

SUBPART G. FUNDAMENTALLY DIFFERENT FACTORS

§ 310.701. Definition of Requester

§ 310.702. Purpose and Scope

§ 310.703. Criteria

§ 310.704. Fundamentally Different Factors

§ 310.705. Factors that are Not Fundamentally Different

§ 310.706. More Stringent State Law

§ 310.711. Application Deadline

§ 310.712. Contents of FDF Request

§ 310.713. Deficient Requests

§ 310.714. Public Notice

§ 310.721. Agency Review of FDF Requests

§ 310.722. USEPA Review of FDF Requests

SUBPART H. ADJUSTMENTS FOR POLLUTANTS IN INTAKE

§ 310.801. Net/Gross Calculation

SUBPART I. UPSETS

§ 310.901. Definition

§ 310.902. Effect of an Upset

§ 310.903. Conditions Necessary for an Upset

§ 310.904. Burden of Proof

§ 310.905. Reviewability of Claims of Upset

§ 310.906. User Responsibility in Case of Upset

SUBPART J. BYPASS

§ 310.910. Definitions

§ 310.911. Bypass Not Violating Applicable Pretreatment Standards or Requirements

§ 310.912. Notice

§ 310.913. Prohibition of Bypass

SUBPART K. MODIFICATION OF POTW PRETREATMENT PROGRAMS

§ 310.920. General

§ 310.921. Substantial Modifications Defined

§ 310.922. Approval Procedures for Substantial Modifications

§ 310.923. Approval Procedures for Non-Substantial Modifications

§ 310.924. Incorporation of Modifications into the Permit

SUBPART L. FEDERAL PROJECT XL AGREEMENTS

§ 310.930. Federally Approved Pretreatment Program Reinvention Pilot Projects Under Project XL [Repealed]

SOURCE: Adopted in R86-44 at 12 Ill. Reg. 2502, effective January 13, 1988; amended in R88-18 at 13 Ill. Reg. 2463, effective January 31, 1989; amended in R89-3 at 13 Ill. Reg. 19243, effective November 27, 1989; amended in R89-12 at 14 Ill. Reg. 7608, effective May 8, 1990; amended in R91-5 at 16 Ill. Reg. 7346, effective April 27, 1992; amended in R95-22 at 20 Ill. Reg. 5533, effective April 1, 1996; amended in R96-12 at 20 Ill. Reg. 10671, effective July 24, 1996; amended in R97-7 at 21 Ill. Reg. 5163, effective April 10, 1997; amended in R98-23 at 22 Ill. Reg. 11465, effective June 22, 1998; amended in R99-17 at 23 Ill. Reg. 8412, effective July 12, 1999; amended in R00-7 at 24 Ill. Reg. 2372, effective January 26, 2000; amended in R00-15 at 24 Ill. Reg. 11633, effective July 24, 2000; amended in R01-5 at 25 Ill. Reg. 1322, effective January 11, 2001; amended in R01-25 at 25 Ill. Reg. 10860, effective August 14, 2001; amended in R02-3 at 26 Ill. Reg. 4008, effective February 28, 2002; amended in R02-9 at 26 Ill. Reg. 4653, effective March 18, 2002; amended in R03-13 at 27 Ill. Reg. 15137, effective September 10, 2003; amended in R04-1 at 28 Ill. Reg. 3390, effective February 6, 2004; amended in R04-18 at 28 Ill. Reg. 10684, effective July 13, 2004; amended in R06-13 at 30 Ill. Reg. 17847, effective October 26, 2006; amended in R08-5/R08-7/R08-13 at 32 Ill. Reg. 19008, effective November 26, 2008; amended in R13-7 at 37 Ill. Reg. 1962, effective February 4, 2013; amended in R15-13 at 39 Ill. Reg. 12357, effective August 24, 2015; amended in R16-9 at 41 Ill. Reg. 1155, effective January 23, 2017; amended in R21-8 at 44 Ill. Reg. 19486, effective December 3, 2020; amended in R21-15 at 45 Ill. Reg. 8061, effective June 21, 2021; amended in R18-23 at 47 Ill. Reg. 5083, effective March 23, 2023.