Ohio Administrative Code

[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 3745-31-01 of the Administrative Code ent…

[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 3745-31-01 of the Administrative Code ent…

[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 3745-31-01 of the Administrative Code ent…

[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 3745-31-01 of the Administrative Code tit…

[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 3745-31-01 of the Administrative Code ent…

(A) Under paragraph (A)(1) of rule 3745-31-02 of the Administrative Code, new air contaminant sources or modified air contaminant sources shall not be installed or modified until a final permit-to-install or PTIO is obtained from the director. This rule describes activities that …

[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 the "Referenced materials" section at the end of this rule.][Comment: "Greenhouse…

In addition to the definitions in rules 3745-1-02, 3745-1-05 and 3745-1-50 of the Administrative Code, the following definitions apply to this chapter.(A) (1) "401 certification" means a Section 401 water quality certification from Ohio EPA, pursuant to section 401 of the act, Ch…

[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 3745-32-01 of the Administrative Code.](A) Any applicant for a federal licens…

[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 3745-32-01 of the Administrative Code.](A) The filing of an application for a…

[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.](A) This rule applies wh…

Except as otherwise provided in this rule, the definitions in sections 6111.01 and 6111.13 of the Revised Code shall have the same meaning in this chapter as in those sections.(A) (1) "Act" means Federal Water Pollution Control Act (commonly referred to as the Clean Water Act) 33…

[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 3745-33-01 of the Administrative Code.](A) No person may discharge any pollut…

[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 3745-33-01 of the Administrative Code.](A) Applications for Ohio NPDES permit…

[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 3745-33-01 of the Administrative Code.](A) Criteria for issuing Ohio NPDES pe…

[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 3745-33-01 of the Administrative Code.](A) Final limitations.(1) Except as pr…

[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 3745-33-01 of the Administrative Code.](A) The director shall include in Ohio…

[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 3745-33-01 of the Administrative Code.](A) Establishing final permit conditio…

[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 3745-33-01 of the Administrative Code.](A) Each Ohio NPDES permit shall conta…

[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 3745-33-01 of the Administrative Code.](A) Best management practices (BMPs) m…

Ohio NPDES permit applications shall be acted upon and challenged in accordance with provisions of Chapters 3745. and 119. of the Revised Code and Chapters 3745-47 and 3745-49 of the Administrative Code. Last updated September 9, 2025 at 11:36 AM Authorized By: 6111.03 Amplifies:…

(A) (1) "Abandoned well" means a well whose use has been permanently discontinued or that is in a state of disrepair such that it cannot be used for its intended purpose or for observation purposes.(2) "Application" means the Ohio EPA standard forms for applying for a permit, inc…

h 119. PDF: Permits shall be issued in a manner and shall contain conditions consistent with requirements of applicable federal laws. These laws may include:(A) The Wild and Scenic Rivers Act, 16 U.S.C. 1273 et seq.(B) The National Historic Preservation Act of 1966, 16 U.S.C. 470…

(A) Any record, report, or other information obtained by the Ohio environmental protection agency shall be made available to the public unless making such record, report, or other information, or particular part thereof, would divulge methods or process entitled to protection as …

Injection wells are classified as follows:(A) Class I.(1) Wells used by generators of hazardous waste or owners or operators of hazardous waste management facilities to inject hazardous waste beneath the lowermost formation containing an underground source of drinking water (USDW…

h 119. PDF: The director may identify (by narrative description, illustrations, maps, or other means) and shall protect, as an underground source of drinking water, all aquifers or parts of aquifers which meet the definition of an underground source of drinking water in rule 3745…

h 119. PDF: Any underground injection, except as authorized by permit or rule issued under this chapter is prohibited. The construction of any well required to have a permit is prohibited until the permit has been issued. Last updated September 25, 2025 at 1:31 PM Authorized By: …

(A) No owner shall construct, operate, maintain, convert, plug, abandon, or conduct any other injection activity in a manner that allows the movement of fluid containing any contaminant into an underground source of drinking water, if the presence of that contaminant may cause an…

[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 rule 3745-34-01 of the Administrative Code.](A) The construction, operation or ma…

(A) Applicability. The requirements in this rule apply to all generators of hazardous waste, and to the owners or operators of all hazardous waste management facilities, using any class of well to inject hazardous wastes (see also rule 3745-34-08 of the Administrative Code).(B) R…

(A) When injection does not occur into, through or above an underground source of drinking water, the director may authorize a well or project with less stringent requirements for area of review, construction, mechanical integrity, operation, monitoring, and reporting than requir…

(A) No person shall inject sanitary waste, sewage, industrial wastes or other wastes, into or above a USDW without first obtaining a UIC permit to drill and a permit to operate in accordance with rule 3745-34-12 of the Administrative Code. Examples of industrial waste include, bu…

[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 rule 3745-34-01 of the Administrative Code.](A) Permit application.(1) Except for…

In addition to the information required in accordance with rule 3745-34-12 of the Administrative Code, the owner shall include the following in a permit application for a permit to drill or permit to operate a class I injection well:(A) A statement of the relative expertise of th…

In addition to the information required in accordance with rules 3745-34-12 and 3745-34-13 of the Administrative Code, the owner shall include the following in a permit application for a permit to drill a class I injection well:(A) The final report on the seismic reflection data …

In addition to the information required in accordance with rules 3745-34-12 and 3745-34-13 of the Administrative Code, the owner shall include the following in an application for a permit to operate a class I injection well:(A) The results of the formation testing program, includ…

(A) In addition to the information required in accordance with rule 3745-34-12 of the Administrative Code, the owner shall include the following in a permit application for a permit to drill a class V injection well:(1) A map extending at least one thousand five hundred feet or t…

(A) Applications. All permit applications shall be signed as follows:(1) For a corporation; by a principal executive officer of at least the level of vice president;(2) For a partnership or sole proprietorship; by a general partner or the proprietor, respectively; or(3) For a mun…

h 119. PDF: (A) The director may issue a class V injection well permit on an area basis, rather than for each well individually, provided that the permit is for class V injection wells:(1) Described and identified by location in permit application(s) if they are existing wells, e…

(A) Coverage. Notwithstanding any other provision of this chapter, the director may temporarily permit a specific underground injection which has not otherwise been authorized by rule or permit if:(1) An imminent and substantial endangerment to the health of persons will result u…

h 119. PDF: (A) Compliance with a permit during its term constitutes compliance, for purposes of enforcement, with sections 6111.043 and 6111.044 of the Revised Code. However, a permit may be modified, revoked and reissued, or terminated during its term for cause as set forth in …

(A) Permits to drill and permits to operate for class I and class V wells shall be effective for a fixed term not to exceed five years, except that in the case of the renewal of an injection well operating permit that is issued for a class I injection well that was in operation o…

h 119. PDF: (A) Transfers by modification. Except as provided in paragraph (B) of this rule, a permit may be transferred by the permittee to a new owner or operator only if the permit has been modified or revoked and reissued (under paragraph (B)(2) of rule 3745-34-23 of the Admi…

When the director receives any information (for example, inspects the facility, receives information pertinent to the permit submitted by the permittee as required in the permit [see rule 3745-34-26 of the Administrative Code], receives a request for modification or revocation an…

h 119. PDF: (A) The director may terminate a permit during its term, or deny a permit renewal application for the following causes:(1) Noncompliance by the permittee with any condition of the permit;(2) The permittee's failure in the application or during the permit issuance proc…

h 119. PDF: Upon the consent of the permittee, the director may modify a permit to make the corrections or allowances for changes in the permitted activity listed in this rule, without following the procedures of Chapter 3745-47 of the Administrative Code. Any permit modification…

The following conditions apply to all UIC permits. All conditions applicable to all permits shall be incorporated into the permits either expressly or by reference. If incorporated by reference, a specific citation to these rules must be given in the permit.(A) Duty to comply. Th…