Drinking & Ground Waters

Ensures compliance with the federal Safe Drinking Water Act and evaluates potential threats to source waters that supply Ohio's more than 4,800 public drinking water systems.

Condition Assessment Grant

The application period for Generator, SWAP, Well Abandonment and Condition Assessment Grants will be opening soon.

learn-more

Drinking Water Viewer

Drinking Water Viewer is a portal for available Ohio drinking water data

Monitoring and Reporting

Public water systems monitoring schedules.

Advisories and Violations

Public water systems must monitor the water regularly for contaminants and notify customers when standards aren't met

Disruption of Service

Requirements for distribution system disruptions of service for public water systems.

Operator and Laboratory Resources

Operator

Services, lists, or forms you may need as an operator, or to become an operator.

Forms and Resources

eDWR Data Reporting

Reporting requirements and form submission for public water systems and certified laboratories.

Laboratory Certification

Ensures laboratories are able to perform accurate testing using specific methods which have been approved by U.S. EPA.

Public Water System Resources

Consumer Confidence Reports

Prepared by all community public water systems and directly distributed to customers by July 1 annually.

Regionalization

Regionalization can be anything from purchasing water or maintenance services from a neighboring system, to one utility being fully absorbed by another.

Source Water Assessment and Protection Program

Ohio's Source Water Assessment and Protection (SWAP) program assists communities with protecting their sources of drinking water (streams, lakes and aquifers) from contamination.

Drinking Water Emergency Loan Fund (DWELF)

Emergency loans to owners or operators of public water systems for emergency remediation of a threat of contamination.

Rural Community Assistance Program Training for DWAF Principal Forgiveness

Required training for drinking water assistance fund principal forgiveness

Revised Total Coliform Rule

Changes the monitoring requirements for total coliform bacteria and the way that public water systems (PWSs) must respond when samples show that total coliform bacteria (TC) are present.

Lead and Copper in Public Water Systems

Requirements related to lead and copper for public water systems (PWSs) and certified laboratories.

License to Operate (LTO)

The LTO indicates the public water system is approved to supply drinking water to the public. It must be prominently displayed at the facility.

Harmful Algal Blooms Info for Public Water Systems

Public water systems with a surface water source(s) must comply with HAB monitoring and reporting rule requirements (OAC 3745-90-03).

Per- and Polyfluoroalkyl Substances (PFAS) in Drinking Water

Per- and Polyfluoroalkyl Substances (PFAS) are a class of thousands of man-made chemicals with unique physical and chemical properties.

View More Public Water System Resources

Earth Science Week — Geologist Robert

"I finally feel like I've hit the area that I am truly passionate about within my career." Thanks for all you do, Robert!

Watch