Learn more about enforcement actions taken by the Division of Drinking and Ground Waters for violations of the Safe Drinking Water rules.
Ground Water Support (Technical Guidance Manual)
Provides technical assistance to the public, regulated community, other governmental entities and other Ohio EPA Divisions concerning ground water related issues
Identifies technical considerations for performing hydrogeologic investigations and ground water monitoring at potential or known ground water pollution sources
Ground Water Quality Characterization
Ground water quality characterization characterizes ambient ground water quality conditions, identifies ground water contamination, and recommends strategies for preventing contamination
Operator and Laboratory Certifications
Locate a certified laboratory and get guidance about how to become a certified laboratory including resources and reporting.
Certifies water and wastewater system operators to ensure public water and wastewater systems are operated by properly trained and qualified individuals.
Public Water Systems
The largest section of DDAGW is involved with overseeing public water systems.
A comprehensive list of information pertaining to public water system operating and compliance.
The intent of an asset management program (AMP) is to provide public water systems with a tool to better manage, operate, and maintain their water system so that they can cost-effectively and consistently meet safe drinking water requirements.
Ensures public water systems have the technical, managerial and financial capability to ensure long term compliance with all public drinking water regulations.
Reporting requirements and form submission for public water systems and certified laboratories.
Plan reviews and guidance for drinking water facilities, backflow prevention and cross-connection control.
Coordinates several programs that offer below market rate loans to eligible public water systems to fund improvements to eliminate public health threats and ensure compliance with federal and state drinking water laws and regulations.
In Ohio, public water systems with a surface water source(s) must comply with HAB monitoring and reporting rule requirements (OAC 3745-90-03).
Includes required forms, summaries of key requirements, other helpful documents and answers to frequently asked questions regarding the lead and copper rule.
In Ohio, public water systems (PWSs) are required to obtain a license to operate (LTO) from Ohio EPA. The LTO indicates the PWS is approved by the Agency to supply drinking water to the public and must be prominently displayed at the facility. PWS are required to renew their license every year.
Includes public water system monitoring and guidance, monitoring schedules and how to report results to the Ohio EPA (electronic data reporting).
Includes required forms, summaries of key requirements, other helpful documents and answers to frequently asked questions about the revised total coliform rule.
Rules, Policies and Guidance
Ohio Administrative Code (OAC) rules administered by the Division of Drinking and Ground Waters are located on the Rules page.
Current effective policy and guidance documents related to the safe drinking water program are included on the Rules page.
Emergency Preparedness and Security
Tools and resources to help water systems prepare for, respond to and recover from emergency events. A quick and effective response to emergency events is critical for protection of public health and the environment.
Source Water Assessment and Protection
Also known as "Wellhead Protection" and "Drinking Water Source Protection," the Source Water Assessment and Protection (SWAP) Program assists public water suppliers with protecting sources of drinking water (streams, rivers, lakes, reservoirs and aquifers) from contamination.
The collaboration between the Clean Water Act and the Safe Drinking Water Act works to ensure public water systems produce safe drinking water using only conventional treatment, resulting in reduced financial cost to communities and minimized risk to human health.
Underground Injection Control
The UIC program is responsible for the regulation of Class I, IV and V injection wells, and for assuring that their operation does not contaminate underground sources of drinking water.