Ohio Administrative Code

19.03 This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed. View Rule Text View Appendix Last updated May 14, 2026 at 9:05 AM Authorized By: 6111.041 Amplifies: 6111.041 Five Year Review Date: 4/4/2029 Prior Effective Dates: 4/4…

19.03 This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed. View Rule Text View Appendix Last updated June 22, 2026 at 9:51 AM Authorized By: 6111.041 Amplifies: 6111.041 Five Year Review Date: 9/22/2031 Prior Effective Dates: 4…

19.03 This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed. View Rule Text View Appendix Last updated April 28, 2026 at 1:31 PM Authorized By: 6111.041 Amplifies: 6111.041 Five Year Review Date: 11/2/2029 Prior Effective Dates: …

19.03 This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed. View Rule Text View Appendix Last updated May 15, 2026 at 12:55 AM Authorized By: 6111.041 Amplifies: 6111.041 Five Year Review Date: 11/2/2029 Prior Effective Dates: 4…

19.03 This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed. View Rule Text View Appendix Last updated November 21, 2023 at 9:05 AM Authorized By: 6111.041 Amplifies: 6111.041 Five Year Review Date: 11/21/2028 Prior Effective Dat…

19.03 This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed. View Rule Text View Appendix Last updated November 21, 2023 at 9:05 AM Authorized By: 6111.041 Amplifies: 6111.041 Five Year Review Date: 11/21/2028 Prior Effective Dat…

(A) Lake Erie is designated exceptional warmwater habitat, superior high quality water, public water supply, agricultural water supply, industrial water supply and bathing waters, and will meet the criteria set forth in, or derived in accordance with, rules 3745-1-01 to 3745-1-07…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rule 3745-1-03 of the Administrative Code.](A) The Ohio river is designated warmwa…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rule 3745-1-03 of the Administrative Code.](A) Human health water quality criteria…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rule 3745-1-03 of the Administrative Code.](A) The chemical specific criteria list…

19.03 This rule was filed with the Legislative Service Commission in PDF format and is presented here as filed. View Rule Text Last updated April 4, 2023 at 9:38 AM Authorized By: 6111.041 Amplifies: 6111.041 Five Year Review Date: 2/1/2023 Prior Effective Dates: 2/14/1978, 4/4/1…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rule 3745-1-03 of the Administrative Code.](A) General information.The chemical-sp…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rule 3745-1-03 of the Administrative Code.](A) Applicability.(1) The director may …

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rule 3745-1-03 of the Administrative Code.](A) Requirements for site-specific modi…

All pollutants or combinations of pollutants, for which aquatic life criteria have not been adopted in rule 3745-1-35 of the Administrative Code, may not exceed the water quality criteria or values derived using the procedures contained in this rule.(A) Tier I acute aquatic crite…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rule 3745-1-03 of the Administrative Code.](A) The purpose of this rule is to desc…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rule 3745-1-03 of the Administrative Code.]This rule applies to water bodies locat…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rule 3745-1-03 of the Administrative Code.]This rule applies to water bodies locat…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rule 3745-1-03 of the Administrative Code.][Comment: See rule 3745-2-09 of the Adm…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations, federal rules and federal statutory provisions referenced in this rule, see paragraph (AA) of this rule and rule 3745-1-03 of the Administrative Code.]In addition to the defin…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rules 3745-1-03 and 3745-1-50 of the Administrative Code.][Comment: To the extent …

For the purposes of establishing waste water discharge permit limits for waste water discharges to wetlands pursuant to Chapter 6111. of the Revised Code, numeric chemical criteria associated with the "warmwater aquatic life habitat" use designation, as specified in this chapter …

h 119. PDF: All surface waters of the state of Ohio which meet the definition of a wetland in rule 3745-1-02 of the Administrative Code are assigned the wetland designated use. Last updated September 25, 2025 at 1:05 PM Authorized By: – Amplifies: – Five Year Review Date:

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules and federal statutory provisions referenced in this rule, see rules 3745-1-03 and 3745-1-50 of the Administrative Code.][Comment: For definition…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of this rule entitled "Referenced materials."]Terms defined in sec…

Owners and operators of facilities described in rules 3745-100-05 and 3745-100-09 of the Administrative Code are subject to this chapter. If the owner and operator of a facility are different persons, only one need report under rule 3745-100-07 of the Administrative Code or provi…

(A) Each person subject to the reporting requirements of this chapter shall retain the following records for a period of three years from the date of submission of a report under rule 3745-100-07 of the Administrative Code:(1) A copy of each report submitted by the person under r…

Violators of this chapter are liable for a civil penalty in an amount not to exceed twenty-five thousand dollars each day for each violation as provided in section 3751.10 of the Revised Code. Last updated September 2, 2025 at 9:28 AM Authorized By: 3751.02 Amplifies: 3751.03 Fiv…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-100-01 of the Administrative Code titled "Referenced …

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-100-01 of the Administrative Code titled "Referenced …

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-100-01 of the Administrative Code titled "Referenced …

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-100-01 of the Administrative Code titled "Referenced …

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-100-01 of the Administrative Code titled "Referenced …

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-100-01 of the Administrative Code titled "Referenced …

(A) Availability of reporting form and instructions. The most current version of EPA form R and form R schedule 1 may be found on the following USEPA program web site: http://www.epa.gov/tri. Any subsequent changes to the EPA form R or EPA form R schedule 1 will be posted on this…

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-100-01 of the Administrative Code titled "Referenced …

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-100-01 of the Administrative Code titled "Referenced …

Availability of the alternate threshold certification statement and instructions is the same as provided in rule 3745-100-11 of the Administrative Code for availability of the reporting form and instructions. Last updated July 8, 2025 at 9:41 AM Authorized By: 3751.02 Amplifies: …

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-100-01 of the Administrative Code titled "Referenced …

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-100-01 of the Administrative Code titled "Referenced …

[Comment: For dates and availability of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (C) of this rule titled "Referenced materials."]Except…

[Comment: For dates and availability of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-103-01 of the Administrative Code ti…

[Comment: For dates and availability of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-103-01 of the Administrative Code ti…

[Comment: For dates and availability of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-103-01 of the Administrative Code ti…

[Comment: For dates and availability of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-103-01 of the Administrative Code ti…

[Comment: For dates and availability of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-103-01 of the Administrative Code ti…

[Comment: For dates and availability of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (AA) of rule 3745-103-01 of the Administrative Code ti…