Rules, Laws, Policies and Guidance

The Division of Drinking and Ground Waters (DDAGW) rules were promulgated under U.S. EPA's Safe Drinking Water Act (SDWA). Rules for Ohio public drinking water systems are adopted under Ohio Revised Code (ORC) Section 6109, and rules for Underground Injection Control, under ORC 6111.043. Ohio Administrative Code (OAC) rules administered by DDAGW are located on this page. More information about DDAGW's rule-making process is available under the "DDAGW Rules Process" section below.

Questions? Email Susan Kramer or call (614) 644-2752.

Electronic versions of policies and guidance may be viewed by clicking on the appropriate tab. Join a rules electronic mailing list to stay informed about current rule-making and opportunities to provide comment during the process.

Announcements

DDAGW's effective rules are available on this webpage. To view the rules, click here.

January 19, 2016: DDAGW seeks comments on proposed rules establishing monitoring and reporting of harmful algal blooms (HABs) in public water systems and amendments to laboratory certification rules. Click here for more information. Comments are due by February 24, 2016.

January 15, 2016: DDAGW seeks comments on proposed new and amended rules, including the revised total coliform rule provisions, revisions to the public notification rule and more. Click here for more information. Comments are due by February 18, 2016.

Revised Total Coliform Rule Implementation: Click here for frequently asked questions about this rule, for templates, forms, reference documents and more. 

Resources

DDAGW's Rule-making Process

The Division of Drinking and Ground Waters (DDAGW) rules were promulgated under U.S. EPA's Safe Drinking Water Act (SDWA). Rules for Ohio public drinking water systems are adopted under Ohio Revised Code (ORC) Section 6109, and rules for Underground Injection Control, under ORC 6111.043. Ohio Administrative Code (OAC) rules administered by DDAGW are located on this page. 

Proposing new rules and amendments to existing rules is a regular activity conducted by Ohio EPA in response to laws passed by the General Assembly and federal rule requirements. The Agency is also required by state law to review its rules at least once every five years to ensure their continued need and relevance. During the Ohio rule-making process, rules are in one of four phases: early stakeholder outreachdraftproposed; and effective. Electronic versions of rules in each of these various phases may be viewed by clicking on the appropriate tabs on this page. 

In addition to adopting rules and laws, DDAGW adopts both policies and guidance documents. The purpose of a policy is to clarify and explain specific aspects of regulations (OAC) and law (ORC) so Ohio EPA and external parties have a common understanding of how environmental regulations are carried out in Ohio. Policies promote consistency and provide savings of both technical and administrative staff resources when dealing with the application of rules. Guidance documents provide information, suggestions and recommendations on possible or acceptable methods that may be used to meet or to achieve compliance with rules.

Electronic versions of policies and guidance may be viewed by clicking on the appropriate tab. Join a rules electronic mailing list to stay informed about current rule-making and opportunities to provide comment during the process.

Early Stakeholder Outreach

As of Jan. 1, 2012, Ohio EPA will conduct early stakeholder outreach in response to requirements of Executive Order 2011-01K. This outreach ensures stakeholders are brought into the rule process as early as possible.

March 9, 2015: DDAGW finalizes 2015-2017 rule-making plan.

The following documents have been distributed to interested parties for early stakeholder review and comment:

No documents currently available for early stakeholder outreach and comment.

Interested Party Review

Ohio EPA distributes draft rules to interested parties for review and comment before they are filed with the Ohio General Assembly's Joint Committee on Agency Rule Review (JCARR). Ohio EPA considers comments received from this preliminary review and makes changes to the rules as appropriate.

The following draft rules have been distributed to interested parties for review and comment:


Escrow Deposit Rules, OAC Chapter 3745-92, No Changes 2015

Public Notice: DDAGW seeds comments on rules in OAC Chapter 3745-92 proposed to be filed with no changes.

Business Impact Analysis for rules in OAC Chapter 3745-92 to be filed with no changes.


Monitoring for Compliance with Secondary Maximum Contaminant Levels, 2016

Public Notice: DDAGW seeks comments on proposed amendments to the rule governing monitoring for compliance with secondary maximum contaminant levels.

Business Impact Analysis for draft revisions to OAC Rule 3745-82-03.

  • 3745-82-03 Monitoring for compliance with secondary maximum contaminant levels

Water Well Standards and Plan Approval

Public Notice: DDAGW seeks second round of comments on draft revisions to the water well standards and plan approval rules, and related guidance. Please submit comments by Oct. 28, 2015, to ddagw_rulecomments@epa.ohio.gov.

Response to comments summary on draft water well standards and plan approval rules from first round of interested party review.

Business Impact Analysis for Draft Revisions to Water Well Standards and Plan Approval Rules


Underground Injection Control 2014 Rules

Public Notice: DDAGW seeks comments on draft changes to underground injection control rules. Please submit comments by June 20, 2014, to ddagw_rulecomments@epa.ohio.gov

Business Impact Analysis for draft changes to underground injection control rules.

Individual rules can be accessed below. The complete rules package can also be viewed as a single pdf.

3745-34-01 (Amend) Definitions
3745-34-02 (Rescind) Considerations Under Federal Law
3745-34-04 (Amend) Classification of Wells
3745-34-05 (Rescind) Identification of Underground Sources of Drinking Water
3745-34-06 (Rescind) Prohibition of Unauthorized Injection
3745-34-07 (Amend) Prohibition of Movement of Fluid into Underground Sources of Drinking Water
3745-34-08 (Amend) Prohibition of Class IV Wells
3745-34-10 (Rescind) Waiver of Requirement by Director
3745-34-12 (Amend) Application by Permit; Authorization by Permit
3745-34-13 (Rescind) Class I Permit Application
3745-34-13 (New) Class I Permit Application
3745-34-14 (Rescind) Class I Permit to Drill Applications
3745-34-14 (New) Class I Permit to Drill Applications
3745-34-15 (Rescind) Class I Permit to Operate Applications
3745-34-15 (New) Class I Permit to Operate Applications
3745-34-19 (Amend) Emergency Permits
3745-34-22 (Amend) Transfer of Permits
3745-34-23 (Amend) Modification or Revocation and Re-issuance of Permits
3745-34-24 (Amend) Termination of Permits
3745-34-29 (Rescind) Requirements for Recording and Reporting of Monitoring Results
3745-34-30 (Rescind) Plan of Corrective Action
3745-34-30 (New) Corrective Action
3745-34-32 (Amend) Area of Review
3745-34-33 (Rescind) Corrective Action
3745-34-34 (Amend) Mechanical Integrity
3745-34-35 (Rescind) Criteria for Establishing Permitting Priorities
3745-34-37 (Rescind) Construction Requirements for Class I Wells
3745-34-39 (Rescind) Information to be Considered by the Director in Authorizing Class I Wells
3745-34-40 (Amend) Seismic Reflection Survey Requirements for Class I Wells
3745-34-50 (Rescind) Criteria and Standards for Class I Injection Wells
3745-34-51 (Rescind) Minimum Criteria for Siting Class I Hazardous Waste Injection Wells
3745-34-52 (Rescind) Area of Review
3745-34-53 (Rescind) Corrective Action for Wells in the Area of Review
3745-34-54 (Rescind) Construction Requirements
3745-34-55 (Rescind) Logging, Sampling, and Testing Prior to New Well Operation
3745-34-59 (Rescind) Information to be Evaluated by the Director

Proposed Rules

Ohio EPA considers comments received during interested party review and makes changes to the rules as appropriate. These rules are then proposed and filed with the Ohio General Assembly's Joint Committee on Agency Rule Review (JCARR) and other agencies as required by Ohio Revised Code section 119.03. Another opportunity for public comment is offered. More information about proposed rules is on the Register of Ohio website.

The following proposed rules have been filed with JCARR:

  • Harmful Algal Blooms (HABs) New Rules and Amendments to Laboratory Certification Rules
  • Revised Total Coliform Rule (RTCR)
  • Operator Certification and Operational Requirements, 2015 Amendments

  • Harmful Algal Blooms (HABs) New Rules and Amendments to Laboratory Certification Rules

    Public Notice: DDAGW seeks comments on proposed rules establishing monitoring and reporting of harmful algal blooms (HABs) in public water systems and amendments to laboratory certification rules.

    Business Impact Analysis for Revised Draft HABs New Rules and Laboratory Certification Rule Amendments (Dec. 2015).

    Public Water System HAB Rules summary of revisions following Interested Party comment period, Dec. 2015.

    Response to Comments on Draft HAB New Rules and Amendments to Laboratory Certification Rules, Interested Party Comment period (Sept. 22 - Oct. 23, 2015)

    • 3745-90-01 Harmful algal blooms - definitions
    • 3745-90-02 Harmful algal blooms - applicability and action levels
    • 3745-90-03 Harmful algal blooms - monitoring
    • 3745-90-04 Harmful algal blooms - analytical methods and reporting
    • 3745-90-05 Harmful algal blooms - treatment techniques
    • 3745-90-06 Harmful algal blooms - Tier 1 public notification and consumer confidence reports
    • 3745-90-07 Harmful algal blooms - recordkeeping
    • 3745-89-01 Laboratory certification definitions
    • 3745-89-02 Analyses requiring laboratory certification
    • 3745-89-03 Procedure for laboratory certification.
    • 3745-89-04 Renewal of laboratory certification.
    • 3745-89-05 Maintenance of a laboratory certification.
    • 3745-89-06 Director's actions for laboratory certification.
    • 3745-89-08 Reporting of analytical techniques. 

    Materials also available for review:


    Revised Total Coliform Rule (RTCR)

    Public Notice: DDAGW seeks comments proposed new and amended rules, including the revised total coliform rule previsions, revisions to public notification and more.

    Response to comments from the second round of interested party review period held Nov.18 to Dec.2, 2015.

    Business Impact Analysis for Draft RTCR New and Amended Rules

    Proposed RTCR Rules: (link the rules to their corresponding file)
    3745-81-01 (Amend) Primary Drinking Water Standards Definitions
    3745-81-12 (Amend) Maximum Contaminant Levels and Best Available Technologies for Organic Contaminants
    3745-81-14 (Amend) Maximum Contaminant Levels for Microbiological Contaminants
    3745-81-21 (Amend) Coliform Monitoring Requirements
    3745-81-32 (Amend) Public Notification
    3745-81-41 (Amend) Ground Water Rule - General Requirements and Applicability
    3745-81-42 (Amend) Ground Water Rule - Ground Water Source Microbial Monitoring and Analytical Methods
    3745-81-43 (Amend) Ground water Rule - Compliance Monitoring Requirements for Ground Water Systems
    3745-81-44 (Amend) Ground Water Rule - Treatment Technique Violations for Ground Water Systems
    3745-81-45 (Amend) Ground Water Rule - Reporting and Record-keeping for Ground Water Systems
    3745-81-50 (New) Revised Total Coliform Rule - General Monitoring Requirements
    3745-81-51 (New) Revised Total Coliform Rule - Routine Monitoring Requirements
    3745-81-52 (New) Revised Total Coliform Rule - Repeat Monitoring and E. coli Requirements
    3745-81-53 (New) Revised Total coliform Rule - Coliform Treatment Technique Triggers and Assessment Requirements
    3745-81-54 (New) Revised Total Coliform Rule - Violations
    3745-81-55 (New) Revised Total Coliform Rule - Reporting and Record-keeping
    3745-81-60 (Amend) Sanitary Surveys
    3745-81-61 (New) Treatment Technique Requirements for Significant Deficiencies
    3745-81-70 (Amend) Monitoring Requirements for Disinfectant Residuals
    3745-81-74 (Amend) Turbidity and Disinfection Monitoring Requirements for Surface Water Systems
    3745-96-02 (Amend) Required Report Content

    Click here for frequently asked questions about RTCR, forms and more.

     


     

    Operator Certification and Operational Requirements, 2015 Amendments

    Public Notice: DDAGW seeks comments on proposed amendments to rules governing operator certification and public water system operational requirements.

    Response to comments on draft amendments from interested party review period.

    Business Impact Analysis for amendments to these rules.


    Effective Rules

    Ohio Administrative Code (OAC) rules administered by the Division of Drinking and Ground Waters (DDAGW) are located on this page. These include rules for Ohio public drinking water systems adopted under Ohio Revised Code (ORC) chapter 6109, and rules for Underground Injection Control, adopted under ORC section 6111.043. 

    Ohio EPA also issues policy and guidance documents related to the implementation of rules in the safe drinking water program. 

    View effective rules by subject matter by clicking on an OAC Chapter below or click All DDAGW Rules for a complete copy of all effective drinking and ground water rules. (Last revised January 20, 2016)

    Chapter 3745-7: Operator Certification for Public Water Systems and Wastewater Treatment Works

    • 3745-7-01 (Feb. 23, 2012) Definitions
    • 3745-7-02 (Oct. 30, 2014) Certified Operators Required  
    • 3745-7-03 (Feb. 23, 2012) Public Water System Classification and Staffing Requirements
    • 3745-7-04 (Feb. 23, 2012) Treatment Works and Sewerage System Classification and Staffing Requirements
    • 3745-7-05 (Feb. 23, 2012) Classification of Operator Certification  
    • 3745-7-06 (Feb. 23, 2012) Certification of Operators
    • 3745-7-07 (Feb. 23, 2012) Operator in Training
    • 3745-7-09 (Feb. 23, 2012) Record-keeping Requirements and Responsibilities of a Certified Operator  
    • 3745-7-10 (Dec. 21, 2006) Operator Certification Advisory Council  
    • 3745-7-11 (Dec. 21, 2006) Duties of the Council
    • 3745-7-12 (Feb. 23, 2012) Suspension or Revocation of Certification
    • 3745-7-13 (Feb. 23, 2012) Reciprocity
    • 3745-7-15 (Feb. 23, 2012) Expiration and Renewal of Operator Certification
    • 3745-7-17 (Dec. 21, 2006) Operator Certification Fees
    • 3745-7-18 (Feb. 23, 2012) Conduct During the Examination Process
    • 3745-7-19 (Jan. 1, 2013) Examination Providers
    • 3745-7-20 (Jan. 1, 2013) Certification of Operators Who Pass an Examination From an Approved Examination Provider

    Chapter 3745-9: Water Well Standards

    • 3745-9-01 (Sept. 1, 2009) Definitions
    • 3745-9-02 (April 19, 2012) Scope and Exemptions
    • 3745-9-03 (Sept. 1, 2009) Monitoring Well  
    • 3745-9-04 (Sept. 1, 2009) Well Siting  
    • 3745-9-05 (April 19, 2012) Well Construction
    • 3745-9-06 (May 1, 2003) Well Construction, Specific Geologic Conditions
    • 3745-9-07 (April 19, 2012) Well Grouting for Construction or Closure
    • 3745-9-08 (April 19, 2012) Well Disinfection
    • 3745-9-09 (April 19, 2012) Well Development and Pumping Test
    • 3745-9-10 (April 19, 2012) Abandoned Well Sealing

    Chapter 3745-34: Underground Injection Control

    • 3745-34-01 (April 23, 2009) Definitions
    • 3745-34-02 (July 25, 1984) Considerations Under Federal Law
    • 3745-34-03 (July 25, 1984) Confidentiality of Information
    • 3745-34-04 (April 23, 2009) Classification of Wells
    • 3745-34-05 (July 25, 1984) Identification of Underground Sources of Drinking Water
    • 3745-34-06 (July 25, 1984) Prohibition of Unauthorized Injection
    • 3745-34-07 (April 23, 2009) Prohibition of Movement of Fluid Into Underground Injection
    • 3745-34-08 (April 23, 2009) Prohibition of Class IV Wells
    • 3745-34-09 (April 23, 2009) Requirements for Wells Injecting Hazardous Wastes
    • 3745-34-10 (July 25, 1984) Waiver of Requirement by Director
    • 3745-34-11 (May 2, 2011) Class V Wells
    • 3745-34-12 (April 23, 2009) Application by Permit; Authorization by Permit
    • 3745-34-13 (April 23, 2009) Class I Permit Application
    • 3745-34-14 (April 23, 2009) Class I Permit to Drill Applications
    • 3745-34-15 (April 23, 2009) Class I Permit to Operate Applications  
    • 3745-34-16 (April 23, 2009) Class V Permit Requirements
    • 3745-34-17 (April 23, 2009) Signatories to Permit Applications and Reports
    • 3745-34-18 (Jan. 20, 1995) Class V Injection Well Area Permits
    • 3745-34-19 (July 25, 1984) Emergency Permits
    • 3745-34-20 (Nov. 9, 1984) Effect of a Permit
    • 3745-34-21 (March 11, 2002) Duration of Permits
    • 3745-34-22 (July 25, 1984) Transfer of Permits
    • 3745-34-23 (Jan. 24, 2000) Modification or Revocation and Re-issuance of Permits
    • 3745-34-24 (July 25, 1984) Termination of Permits
    • 3745-34-25 (July 25, 1984) Minor Modifications of Permits
    • 3745-34-26 (Jan. 20, 1995) Conditions Applicable to All Permits
    • 3745-34-27 (March 11, 2002) Establishing Drilling Permit and Injection Permit Conditions
    • 3745-34-28 (July 25, 1984) Schedule of Compliance
    • 3745-34-29 (July 25, 1984) Requirements for Recording and Reporting of Monitoring Results
    • 3745-34-30 (July 25, 1984) Plan of Corrective Action
    • 3745-34-32 (April 23, 2009) Area of Review
    • 3745-34-33 (July 25, 1984) Corrective Action
    • 3745-34-34 (Jan. 24, 2000) Mechanical Integrity
    • 3745-34-35 (April 23, 2009) Criteria for Establishing Permitting Priorities
    • 3745-34-36 (July 25, 1984) Plugging and Abandoning Class I Wells
    • 3745-34-37 (July 25, 1984) Construction Requirements for Class I Wells
    • 3745-34-38 (Dec. 16, 1991) Operating, Monitoring and Reporting Requirements for Class I Wells
    • 3745-34-39 (April 23, 2009) Information to be Considered by the Director in Authorizing Class I Wells
    • 3745-34-40 (April 23, 2009) Seismic Reflection Survey Requirements for Class I Wells
    • 3745-34-50 (Dec. 16, 1991) Criteria and Standards for Class I Injection Wells
    • 3745-34-51 (Jan. 24, 2000) Minimum Criteria for Siting Class I Hazardous Waste Injection Wells
    • 3745-34-52 (Dec. 16, 1991) Area of Review
    • 3745-34-53 (Dec. 16, 1991) Corrective Action for Wells in the Area of Review
    • 3745-34-54 (April 23, 2009) Construction Requirements
    • 3745-34-55 (Dec. 16, 1991) Logging, Sampling and Testing Prior to New Well Operation
    • 3745-34-56 (Dec. 16, 1991) Operating Requirements
    • 3745-34-57 (Dec. 1, 1993) Testing and Monitoring Requirements
    • 3745-34-58 (Dec. 16, 1991) Reporting Requirements
    • 3745-34-59 (April 23, 2009) Information to be Evaluated by the Director
    • 3745-34-60 (Dec. 16, 1991) Closure
    • 3745-34-61 (Dec. 16, 1991) Post Closure
    • 3745-34-62 (Dec. 16, 1991) Financial Responsibility for Closure and Post Closure Care
    • 3745-34-63 (April 23, 2009) Class I Annual Permit Fee; Fee Per Ton of Waste Injected

    Chapter 3745-81: Primary Drinking Water Standards

    • 3745-81-01 (June 19, 2014) Definitions
    • 3745-81-02 (Dec. 27, 1978) Coverage
    • 3745-81-03 (Dec. 27, 1978) Siting Requirements
    • 3745-81-04 (Oct. 17, 2003) Administrative Penalties  
    • 3745-81-10 (Jan. 1, 2010) Maximum Residual Disinfectant Levels
    • 3745-81-11 (Feb. 22, 2010) Maximum Contaminant Levels and Best Available Technologies for Inorganic Contaminants
    • 3745-81-12 (Jan. 1, 2010) Maximum Contaminant Levels and Best Available Technologies for Organic Contaminants
    • 3745-81-14 (Jan. 1, 2008) Maximum Contaminant Levels for Microbiological Contaminants
    • 3745-81-15 (Feb. 23, 2015) Maximum Contaminant Levels and Best Available Technologies for Radionuclide Contaminants
    • 3745-81-17 (Sept. 13, 1993) Treatment Techniques
    • 3745-81-19 (Feb. 22, 2010) Use of Non-centralized Treatment Devices
    • 3745-81-21 (Jan. 1, 2008) Coliform Monitoring Requirements
    • 3745-81-23 (Jan. 1, 2010) Inorganic Chemical Monitoring Requirements
    • 3745-81-24 (Feb. 23, 2015) Organic Chemical Monitoring Requirements   
    • 3745-81-26 (Feb. 23, 2015) Radionuclide Monitoring Requirements
    • 3745-81-27 (May 4, 2015) Analytical Techniques
    • 3745-81-28 (Nov. 1, 2004) Acceptability of Analytical Results
    • 3745-81-29 (Dec. 27, 1978) Monitoring of Consecutive Public Water Systems
    • 3745-81-31 (Jan. 1, 2010) Reporting Requirements for Public Water Systems
    • 3745-81-32 (Oct. 31, 2010) Public Notification
    • 3745-81-33 (Feb. 23, 2015) Record Maintenance
    • 3745-81-41 (Oct. 31, 2010) Ground Water Rule - General Requirements and Applicability
    • 3745-81-42 (Oct. 31, 2010) Ground Water Rule - Ground Water Source Microbial Monitoring and Analytical Methods
    • 3745-81-43 (Oct. 31, 2010) Ground Water Rule - Treatment Technique Requirements for Ground Water Systems
    • 3745-81-44 (Oct. 31, 2010) Ground Water Rule - Treatment Technique Violations for Ground Water Systems
    • 3745-81-45 (Oct. 31, 2010) Ground Water Rule - Reporting and Record-keeping for Ground Water System
    • 3745-81-60 (Oct. 31, 2010) Sanitary Surveys
    • 3745-81-64 (Jan. 8, 2010) General Requirements of the "Long Term 2 Enhanced Surface Water Treatment (LT2) Rule"
    • 3745-81-65  (Oct. 5, 2013) Source Monitoring Requirements
    • 3745-81-66  (Oct. 5, 2013) Source Monitoring Results and Grandfathered Data
    • 3745-81-67 (Jan. 8,  2010) LT2 Bin Classification and Treatment Technique Requirements
    • 3745-81-68 (Jan. 8, 2010) Microbial Toolbox Options for Meeting Cryptosporidium Treatment Requirements
    • 3745-81-69 (Jan. 8, 2010) Reporting and Record-keeping Requirements for LT2 Only
    • 3745-81-70 (Jan. 1, 2010) Monitoring Requirements for Disinfectant Residuals
    • 3745-81-71 (Oct. 5, 2013) General Requirements for Filtration and Disinfection of Surface Water Sources
    • 3745-81-72 (Oct. 5, 2013) Disinfection of Water from Surface Water Sources
    • 3745-81-73 (Oct. 5, 2013) Filtration of Water From Surface Water Sources
    • 3745-81-74 (Oct. 5, 2013) Turbidity and Disinfection Monitoring Requirements for Surface Water Systems
    • 3745-81-75 (Oct. 5, 2013) Reporting and Record-keeping Requirements
    • 3745-81-76 (Aug. 1, 2014) Water Source Designation
    • 3745-81-77 (Jan. 1, 2010) Treatment Techniques for Control of Disinfection Byproduct (DBP) Precursors
    • 3745-81-79 (Oct. 5, 2013) Filter Backwash Recycling
    • 3745-81-80 (July 24, 2009) Control of Lead and Copper - General Requirements
    • 3745-81-81 (Feb. 23, 2015) Control of Lead and Copper; Applicability of Corrosion Control Treatment Steps to Small, Medium-size and Large Water Systems.
    • 3745-81-82 (July 24, 2009) Control of Lead and Copper; Description of Corrosion Control Treatment Requirements  
    • 3745-81-83 (July 24, 2009) Control of Lead and Copper; Source Water Treatment Requirements
    • 3745-81-84 (July 24, 2009) Control of Lead and Copper - Lead Service Line Replacement Requirements
    • 3745-81-85 (July 24, 2009) Control of Lead and Copper - Public Education, Supplemental Monitoring Requirements and Consumer Notification of Results
    • 3745-81-86 (July 24, 2009) Control of Lead and Copper - Monitoring Requirements for Lead and Copper in Tap Water
    • 3745-81-87 (Feb. 23, 2015) Control of Lead and Copper - Monitoring Requirements for Water Quality Parameters
    • 3745-81-88 (July 24, 2009) Control of Lead and Copper - Monitoring Requirements for Lead and Copper in Water Entering the Distribution System
    • 3745-81-89 (July 24, 2009) Analytical Methods
    • 3745-81-90 (July 24, 2009) Control of Lead and Copper - Reporting and Record-keeping Requirements

    Chapter 3745-82: Secondary Contaminant Standards

    • 3745-82-01 (Oct. 1, 2006) Definitions
    • 3745-82-02 (Sept. 13, 1993) Secondary Maximum Contaminant Levels
    • 3745-82-03 (Oct. 1, 2006) Monitoring for Compliance with Secondary Maximum Contaminant Levels

    Chapter 3745-83: Operational Requirements

    • 3745-83-01 (April 19, 2012) Operational Requirements

    Chapter 3745-84: Public Water System Licenses

    • 3745-84-01 (July 1, 2014) Definitions
    • 3745-84-02 (July 1, 2014) Application for a License to Operate or Maintain a Public Water System
    • 3745-84-03 (July 1, 2014) Expiration and Renewal of License to Operate or Maintain a Public Water System
    • 3745-84-04 (July 1, 2014) Format and Display of License to Operate or Maintain a Public Water System
    • 3745-84-05 (July 1, 2014) Fees for Operating or Maintaining a Public Water System
    • 3745-84-06 (July 1, 2014) Conditioning, Denial, Suspension or Revocation of a License to Operate or Maintain a Public Water System  

    Chapter 3745-85: Contingency Plans

    Chapter 3745-86: Emergency Loans

    Chapter 3745-87: Capability Assurance Plans

    Chapter 3745-88: Disadvantaged Community Loans

    Chapter 3745-89: Laboratory Certification

    • 3745-89-01 (May 4, 2015) Laboratory Certification Definitions  
    • 3745-89-02 (May 4, 2015) Analyses Requiring Laboratory Certificate of Approval
    • 3745-89-03 (May 4, 2015) Procedure for Laboratory Certification
      • 3745-89-04 (May 4, 2015) Renewal of Laboratory Certification
      • 3745-89-05 (May 4, 2015) Requirements for Maintaining Laboratory Certification
      • 3745-89-06 (May 4, 2015) Director's Actions for Laboratory Certification  
      • 3745-89-07 (May 4, 2015) Laboratory Certificate Property of State; Display
      • 3745-89-08 (May 4, 2015) Reporting of Analytical Results
      • 3745-89-09 (May 4, 2015) Interim Authorization for Plant Control Tests or MMO-MUG (SM 9223) Tests
      • 3745-89-10 (May 4, 2015) Interim Authorization for New Contaminants and New Methods
      • 3745-89-11 (May 4, 2015) Certified Laboratories for the "Long Term 2 Enhanced Surface Water Treatment Rule"

      Chapter 3745-91: Plan Approval

      • 3745-91-01 (Dec. 31, 2006) Definitions
      • 3745-91-02 (April 19, 2012) Application for Approval of Plans
      • 3745-91-03 (Feb. 23, 2015) Requirements for Plan Drawings
      • 3745-91-04 (Nov. 26, 1980) Requirements for Specifications
      • 3745-91-05 (Jan. 1, 2002) Requirements for Data Sheet
      • 3745-91-06 (April 19, 2012) Requirements for Supporting Information
      • 3745-91-07 (Jan. 1, 2002) Requirements for Submittal Letter
      • 3745-91-08 (May 20, 2010) Procedure for Approval; Changes
      • 3745-91-09 (Jan. 1, 2002) Iron and Manganese Treatment
      • 3745-91-10 (Sept. 1, 2009) Drinking Water Source Protection Plan
      • 3745-91-12 (Oct. 26, 2015) Certification by Political Subdivisions and Investor-owned Utilities

      Chapter 3745-92: Escrow Requirements

      • 3745-92-01 (Nov. 26, 1980) Definitions
      • 3745-92-02 (Nov. 26,  1980) Escrow Deposit Required
      • 3745-92-03 (Nov. 26, 1980) Amount of Deposit
      • 3745-92-04 (Nov. 26,  1980) Release of Escrow
      • 3745-92-05 (Nov. 26, 1980) Orders of the Director, Notice to Owner
      • 3745-92-06 (Nov. 26, 1980) Fee for Escrow Deposit  

      Chapter 3745-95: Backflow Prevention and Cross-Connection Control

      • 3745-95-01 (Oct. 26, 2015) Backflow Prevention and Cross-Connection Control Definitions
      • 3745-95-02 (Oct. 26, 2015) Cross-connections
      • 3745-95-03 (Oct. 26, 2015) Surveys and Investigations
      • 3745-95-04 (May 1, 2003) Where Protection is Required
      • 3745-95-05 (Oct. 26, 2015) Type of Protection Required
      • 3745-95-06 (Oct. 26, 2015) Backflow Prevention Devices
      • 3745-95-07 (Oct. 26, 2015) Booster Pumps
      • 3745-95-08 (Nov. 26, 1980) Violations
      • 3745-95-09 (April 19, 2012) Requirements for Yard Hydrants

      Chapter 3745-96: Consumer Confidence Reports

      • 3745-96-01 (Oct. 26, 2015) Consumer Confidence Report Applicability and Definitions
      • 3745-96-02 (Oct. 31, 2010) Required Report Content
      • 3745-96-03 (Oct. 31, 2010) Required Additional Health Information
      • 3745-96-04 (Oct. 26, 2015) Report Delivery and Record-keeping

      Policies and Guidance

      Currently effective policy and guidance documents related to the safe drinking water program are listed below by general topic. 

      Engineering

      • ENG-01-003: Guidelines for Clarifier and Granular Media Filter Ratings at Surface Water Treatment Plants
      • ENG-02-001: Guidelines for Treatment Process Ratings at Precipitative (e.g., Lime) Softening Ground Water Plants
      • ENG-03-002: Detail Plan Submission Guidance for Non-community Public Water Systems
      • ENG-05-001: Guidelines for Obtaining Approval of Membranes to Meet Particulate and Microbiological Removal Requirements for Surface Water
      • ENG-06-001: Guideline for Evaluation and Implementation of Chloramination
      • ENG-07-001: Guidelines for Obtaining Approval of Membranes to Meet Treatment Requirements for Ground Water Treatment
      • ENG-08-002: Policy for Determining the Acceptability of ASTM Pipe in Lieu of AWWA Pipe for Public Water Systems
      • ENG-09-001: Guidelines for Evaluating Granular Activated Carbon (GAC) for Disinfection By-product (DBP) Precursor Removal
      • ENG-10-001: Guidance for Installation of Automatic Flush Hydrants in Distribution Systems
      • ENG-12-001: Guidelines for Demonstration of On-site Sodium Hypochlorite Generators to Meet Inactivation/Disinfection Requirements of Drinking Water
      • ENG-13-001: Guidelines for Obtaining Secondary Filtration Credit for Compliance with the LT2 Rule
      • ENG-16-001: Guidelines for Agreements for Self-Certification of Distribution System Plans by Public Water Systems

      Ground Water

      In addition to providing the guidance documents listed below, the Division of Drinking and Ground Waters offers support to other Ohio EPA divisions on ground water issues. Click here to learn more.

      Ground Water Wells

      Agency-wide

      Division of Materials and Waste Management (DMWM) Guidance Documents issued by DDAGW

      Division of Surface Water (DSW) Guidance Documents issued by DDAGW

      Laboratory Certification

      • LAB-01-002: Fluoride Proficiency Test for Drinking Water Laboratories

      Operations

      • OPR-01-001: Significant Deficiencies for Sanitary Surveys
      • OPR-02-001: Chlorine Monitoring and Compliance Tracking for Ground Water Systems
      • OPR-03-001: Guidance for Flood Event Monitoring by Public Water Systems with Ground Water Sources
      • OPR-05-002: Disinfection of Finished Water Storage Facilities & Water Mains
      • OPR-06-001: Policy for Evaluating and Responding to Water Distribution Systems and Subsystems that have Depressurized (see Quick Reference Guides for Main Breaks and System Depressurizations)

      Public Water Systems

      • PWS-01-002: Clarification of Public Water Systems Definition 
      • PWS-02-003​: Alternative to the Installation of an Approved Backflow Preventer on Service Connections Where There is an Auxiliary Water System

      Water Quality

      • WQ-01-006: Guidance of Total Coliform Bacteria Monitoring for Small Public Water Systems (Population Less Than 3,301 Persons) 
      • WQ-06-001: Limited Distribution of Public Notice
      • WQ-07-002: Tier 1 Public Notice Requirements 
      • WQ-13-002: Designation of Community Public Water Systems Vulnerable to Contamination from Beta Particle and Photon Radioactivity
      • WQ-14-001: Guidance for Compliance with Total Organic Carbon (TOC) Monitoring and Removal Requirements for Non-conventional Filtration Treatment at Surface Water Treatment Plants
      • WQ-17-001: Guidance for Ground Water Rule Triggered Source Water Monitoring (TSWM) Plans and Options for Reducing Samples
      • WQ-18-001: Responding to Algal Toxin Detections in Finished Water Samples at Public Water Systems
      • WQ-21-001: Guidance for Hydrogeologic Sensitivity Assessment
      • WQ-22-001: Guidance for Assessment Source Water Monitoring

        • Guidance for Hydrogeologic Sensitivity Assessment and Assessment Source Water Monitoring; Hydrogeologic Sensitivity Assessment and Assessment Source Water Monitoring Pilot Report