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.

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.

Questions? Call (614) 644-2752 and ask to speak with a Rules Coordinator.

 

 

Announcements

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

  • April 19, 2018: The Division of Drinking and Ground Waters (DDAGW) seeks comments on the proposed rulemaking governing Confidentiality of information rule in Chapter 3745-34 of the Ohio Administrative Code. Comments are due by May 21, 2018. Click here for more information.
  • April 12, 2018: Ohio EPA has adopted amended rules governing Primary Drinking Water Standards and the Lead and Copper rules in OAC Chapter 3745-81, Laboratory Certification rule in Chapter 3745-89 and Consumer Confidence rule in Chapter 3745-96 of the Ohio Administrative Code. The revisions were prompted by the passing of Ohio House Bill 512 which became effective in Ohio Revised Code (ORC) § 6109.121, Sept. 9, 2016.

    The new rules will be effective as of May 1, 2018 (see Public Notice of Adoption). The rules are being adopted after a draft comment period which ended March 17, 2017, a proposal comment period which ended March 6, 2018 and a public hearing held on March 6, 2018 in Columbus, Ohio.
  • April 2, 2018: The Division of Drinking and Ground Waters (DDAGW) has proposed revisions to the rules in Chapter 3745-7 of the Ohio Administrative Code (OAC) and proposed the addition of a new rule to the chapter to Joint Committee on Agency Rule Review (JCARR). Click here for more information.
  • March 21, 2018: DDAGW seeks comments on plan to make revisions to the surface water treatment rules. Click here for more information. Comments are due by April 20, 2018.
  • Feb. 16, 2018: The Division of Drinking and Ground Waters (DDAGW) seeks comments on the proposed new rule added to Chapter 3745-83 of the Ohio Administrative Code. The proposed rule establishes requirements for public water systems that have a disruption of service involving the distribution system. Comments are due March 19, 2018. Click here for more information.
  • Feb. 16, 2018: The Division of Drinking and Ground Waters (DDAGW) seeks comments on proposed rule revisions to the backflow prevention rules and underground injection control rule to satisfy the five-year rule review requirement of Section 106.03 of the Ohio Revised Code (ORC). Comments are due March 19, 2018. Click here for more information.
  • Jan. 16, 2018: DDAGW seeks comments on proposed rule revisions in response to the new and amended requirements of section 6109.24, 6109.02 and 6109.08 of the Ohio Revised Code (ORC). Comments are due February 16, 2018. Click here for more information.
  • Nov. 8, 2017: DDAGW seeks comments on plan to make minor revisions to rules governing backflow prevention and underground injection control (UIC). Click here for more information. Comments are due by December 8, 2017.
  • Oct. 13, 2017: ​DDAGW seeks comments on the draft policy – Guidelines for Obtaining Approval of Backflow Prevention Methods in Drinking Water Treatment Plants. Click here to view the document. Comments should be submitted by email to DDAGW_RULECOMMENTS@epa.ohio.gov with the subject line “BFP guidelines” by close of business, Nov. 13, 2017.
  • July 14, 2017: DDAGW seeks comments on plan to draft rules incorporating provisions from Ohio Senate Bill 2. Click here for more information. Comments are due by August 14, 2017.
  • Jan. 6, 2017: DDAGW finalizes, Guidelines for Lead Mapping in Distribution Systems and Guidelines for Mapping Lead Plumbing and Fixtures for Individual Buildings. Click here to view the proposed rules and business impact analysis.
  • Jan. 3, 2017: DDAGW seeks comments on the draft guidance document, Guidelines for Determining When Source or Treatment Changes Trigger New Optimal Corrosion Control Evaluation. This document was drafted in response to the new lead and copper law, located in Ohio Revised Code Section 6109.121. Please submit comments or questions to DDAGW_Rulecomments@epa.ohio.gov by Jan. 31, 2017.

Policies and Guidance

Please see the Policies and Guidance tab for the most current versions of these documents.

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 outreach; draft; proposed; 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 21, 2018: DDAGW seeks comments on plan to make revisions to the surface water treatment rules in Ohio Administrative Code (OAC) Chapter 3745-81 to satisfy the five-year rule review requirements of section 106.03 and 106.031 of the Ohio Revised Code. Comments are due by April 20, 2018.

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:

Proposed rulemaking governing Confidentiality of Information

Public Notice: DDAGW seeks comments on proposed rulemaking governing Confidentiality of information rule in Chapter 3745-34 of the Ohio Administrative Code. Comments are due by May 21, 2018.

Business Impact Analysis for Confidentiality of Information rule.

  • 3745-34-03 (Rescind) Confidentiality of Information
  • 3745-34-03 (New) Confidentiality of Information

Proposed Rulemaking Governing Disruption of Service

Public Notice: DDAGW seeks comments on proposed rulemaking governing Disruption of Service. Comments are due by March 19, 2018.

Business Impact Analysis for Disruption of Service rule.

  • 3745-83-02 (New) Water distribution system disruption of service

Revisions to Backflow Prevention Rules and Underground Injection Control Rule

Public Notice: DDAGW seeks comments on proposed rulemaking governing backflow prevention rules and underground injection control rule. Comments are due by March 19, 2018.

Business Impact Analysis for Backflow Prevention rules and Underground Injection Control rule .

Proposed Rulemaking Governing Asset Management

Public Notice: DDAGW seeks comments on proposed rulemaking governing asset management. Comments are due by Feb. 16, 2018.

Business Impact Analysis for asset management rules.

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:

Proposal of Revised Rules- OAC Chapter 3745-7, Operator Certification Rules

The Division of Drinking and Ground Waters (DDAGW) has proposed revisions to the rules in Chapter 3745-7 of the Ohio Administrative Code (OAC) and proposed the addition of a new rule to the chapter to Joint Committee on Agency Rule Review (JCARR). The proposed amendments are, in part, a result of the five-year rule review requirements of Section 106.03 of the Ohio Revised Code (ORC).

Ohio EPA will be holding a public hearing on the revised rules on May 3rd, 2018, at 10 am at Ohio EPA Central office, Columbus, Ohio. Please see the public hearing notice, response to comments, proposed rule language and the Business Impact Analysis (Linked below) for information on the changes and how to submit comments/attend the hearing.

Public Notice

Response to Comments

Business Impact Analysis

  • 3745-7-01 (Amend) Professional operator certification definitions
  • 3745-7-02 (Amend) Certified professional operators of record
  • 3745-7-03 (Amend) Public water system classification and staffing requirements
  • 3745-7-04 (Amend), Treatment works and sewerage system classification and staffing requirements
  • 3745-7-05 (Amend) Classification of professional operator certification
  • 3745-7-06 (Amend) Certification of professional operators
  • 3745-7-07(Amend) Professional operator in training
  • 3745-7-09 (Amend) Record-keeping requirements and responsibilities of owners, certified professional operators and certified professional operators of record
  • 3745-7-10 (Amend) Professional operator certification advisory council
  • 3745-7-11 (Amend) Duties of the council
  • 3745-7-12 (Amend) Suspension or revocation of certification
  • 3745-7-13 (Amend) Reciprocity
  • 3745-7-15 (Amend) Expiration and renewal of professional operator certification
  • 3745-7-17 (Amend) Professional operator certification fees
  • 3745-7-18 (Amend) Conduct during the application and examination process
  • 3745-7-19 (Amend) Examination providers
  • 3745-7-20 (Amend) Certification of professional operators who pass an examination from an approved examination provider
  • 3745-7-21 (New) Contract operations companies and contracted professional operators

Proposal of Revised Rules- OAC Chapter 3745-81, Lead and Copper rule

The Division of Drinking and Ground Waters (DDAGW) has proposed revisions to several rules in OAC Chapter 3745-81 (primary drinking standard and lead and copper rule) and OAC rules 3745-89-08 (Laboratory Certification rule) and 3745-96-02 (Consumer Confidence Reports rule) to Joint Committee on Agency Rule Review (JCARR). The revisions incorporate provisions of Ohio House Bill 512 (effective in Ohio Revised Code § 6109.121). These rules address lead notification and monitoring for community water systems and nontransient noncommunity water systems.

Ohio EPA will be holding a public hearing on the revised rules on March 6, 2018, at 10.30 am at Ohio EPA Central office, Columbus, Ohio. Please see the public hearing notice, response to comments, proposed rule language and the Business Impact Analysis (Linked below) for information on the changes and how to submit comments/attend the hearing.

Public Notice

Response to Comments

Business Impact Analysis

  • 3745-81-01 (Amend) Primary drinking water standards definitions
  • 3745-81-04 (Rescind) Administrative penalties
  • 3745-81-04 (New) Administrative penalties
  • 3745-81-80 (Amend) Control of lead and copper - general requirements
  • 3745-81-81 (Amend) Control of lead and copper - applicability of corrosion control treatment steps to small, medium-size and large water systems
  • 3745-81-84 (Amend) Control of lead and copper - lead service line replacements (Original filed- January 31, 2018)
  • 3745-81-84 (Amend) Control of lead and copper - lead service line replacements (Refiled- March 15, 2018)
  • 3745-81-85 (Rescind) Control of lead and copper - public education, supplemental monitoring requirements and consumer notification
  • 3745-81-85 (New) Control of lead and copper - response to lead monitoring results
  • 3745-81-86 (Amend) Control of lead and copper - monitoring requirements for lead and copper in tap water
  • 3745-81-87 (Amend) Control of lead and copper - monitoring requirements for water quality parameters
  • 3745-81-89 (Amend) Control of lead and copper - analytical methods
  • 3745-81-90 (Amend) Control of lead and copper - reporting and record keeping requirements
  • 3745-89-08 (Amend) Reporting of analytical results
  • 3745-96-02 (Amend) Consumer confidence report - required content

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 May 16, 2017)

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

  • 3745-7-01 (March 4, 2016) Operator Certification Definitions
  • 3745-7-02 (Oct. 30, 2014) Certified Operators Required  
  • 3745-7-03 (March 4, 2016) 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 (June 13, 2016) Well Standard Definitions
  • 3745-9-02 (June 13, 2016) Scope and Exemptions
  • 3745-9-03 (June 13, 2016) Monitoring Well  
  • 3745-9-04 (June 13, 2016) Well Siting  
  • 3745-9-05 (June 13, 2016) Well Construction
  • 3745-9-06 (June 13, 2016) Well Construction, Specific Geologic Conditions
  • 3745-9-07 (June 13, 2016) Well Grouting for Construction or Sealing
  • 3745-9-08 (June 13, 2016) Well Disinfection
  • 3745-9-09 (June 13, 2016) Well Development and Pumping Test
  • 3745-9-10 (June 13, 2016) Abandoned Well Sealing

Chapter 3745-34: Underground Injection Control

  • 3745-34-01 (Nov. 11, 2016) Definitions
  • 3745-34-02 (July 25, 1984) Considerations Under Federal Law
  • 3745-34-03 (July 25, 1984) Confidentiality of Information
  • 3745-34-04 (Nov. 11, 2016) 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 (Nov. 11, 2016) 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 (Nov. 11, 2016) 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 (Nov. 11, 2016) 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 (Nov. 11, 2016) 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 (Nov. 11, 2016) 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 (April 1, 2016) Primary Drinking Water Standards 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 (April 1, 2016) Maximum Contaminant Levels and Best Available Technologies for Organic Contaminants
  • 3745-81-14 (April 1, 2016) 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 (April 1, 2016) 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 (April 1, 2016) Public Notification
  • 3745-81-33 (Feb. 23, 2015) Record Maintenance
  • 3745-81-41 (April 1, 2016) Ground Water Rule - General Requirements and Applicability
  • 3745-81-42 (April 1, 2016) Ground Water Rule - Ground Water Source Microbial Monitoring and Analytical Methods
  • 3745-81-43 (April 1, 2016) Ground Water Rule - Treatment Technique Requirements for Ground Water Systems
  • 3745-81-44 (April 1, 2016) Ground Water Rule - Treatment Technique Violations for Ground Water Systems
  • 3745-81-45 (April 1, 2016) Ground Water Rule - Reporting and Recordkeeping for Ground Water Systems
  • 3745-81-50 (April 1, 2016) Revised Total Coliform Rule - General Monitoring Requirements
  • 3745-81-51 (April 1, 2016) Revised Total Coliform Rule - Routine Monitoring Requirements
  • 3745-81-52 (April 1, 2016) Revised Total Coliform Rule - Repeat Monitoring and E. coli Requirements
  • 3745-81-53 (April 1, 2016) Revised Total coliform Rule - Coliform Treatment Technique Triggers and Assessment Requirements
  • 3745-81-54 (April 1, 2016) Revised Total Coliform Rule - Violations
  • 3745-81-55 (April 1, 2016) Revised Total Coliform Rule - Reporting and Recordkeeping
  • 3745-81-60 (April 1, 2016) Inspections and response requirements.
  • 3745-81-61 (April 1, 2016) Treatment Technique Requirements for Significant Deficiencies
  • 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 (April 1, 2016) 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 (May 12, 2016) 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 (Aug. 5, 2016) Monitoring for Compliance with Secondary Maximum Contaminant Levels
  • 3745-82-04 (Aug 5, 2016) Monitoring for Compliance with the Fluoride Secondary Maximum Contaminant Level

Chapter 3745-83: Operational Requirements

  • 3745-83-01 (March 4, 2016) 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 (June 1, 2016) Laboratory Certification Definitions  
  • 3745-89-02 (June 1, 2016) Analyses Requiring Laboratory Certificate of Approval
  • 3745-89-03 (June 1, 2016) Procedure for Laboratory Certification
    • 3745-89-04 (June 1, 2016) Renewal of Laboratory Certification
    • 3745-89-05 (June 1, 2016) Maintenance of a Laboratory Certification
    • 3745-89-06 (June 1, 2016) Director's Actions for Laboratory Certification  
    • 3745-89-07 (May 4, 2015) Laboratory Certificate Property of State; Display
    • 3745-89-08 (June 1, 2016) 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 3745-90: Harmful Algal Blooms

    • 3745-90-01 (June 1, 2016) Harmful Algal Blooms - Definitions
    • 3745-90-02 (June 1, 2016) Harmful Algal Blooms - Applicability and Action Levels
    • 3745-90-03 (June 1, 2016) Harmful Algal Blooms - Monitoring
    • 3745-90-04 (June 1, 2016) Harmful Algal Blooms - Analytical Methods and Reporting
    • 3745-90-05 (June 1, 2016) Harmful Algal Blooms - Treatment Techniques
    • 3745-90-06 (June 1, 2016) Harmful Algal Blooms - Tier 1 Public Notification and Consumer Confidence Reports
    • 3745-90-07 (June 1, 2016) Harmful Algal Blooms - Recordkeeping

    Chapter 3745-91: Plan Approval

    • 3745-91-01 (Dec. 31, 2006) Definitions
    • 3745-91-02 (June 13, 2016) Application for Approval of Plans
    • 3745-91-03 (June 13, 2016) 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 (June 13, 2016) Procedure for Approval; Changes
    • 3745-91-09 (Oct. 14, 2016) 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 (April 1, 2016) 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
    • ENG-18-001: Guidance for High Rate Filtration for Iron and Manganese Removal at Groundwater Treatment Plants

    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
    • PWS-04-001: Guidelines for Lead Mapping in Distribution Systems
    • PWS-05-001: Guidelines for Mapping Lead Plumbing and Fixtures for Individual Buildings

    Water Quality

    • WQ-01-006: Guidance of Total Coliform Bacteria Monitoring for Small Public Water Systems (Population Less Than 3,301 Persons)  (Under Revision)
    • WQ-06-002: 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-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 

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    DDAGW Site Links
     800-282-9378