Backflow Prevention Program

Backflow Prevention Program

The City of Warren is required by Ohio State Law to administer a Backflow Prevention Program. The purpose of this program is to protect the public water supply from potential cross contamination by preventing the flow of water from a customer's private piping back into the public water distribution system. Backflow prevention is primarily accomplished through the installation of a backflow prevention device.

While backflow and cross connections (an arrangement whereby backflow can occur) are not new, they are most recently covered by the Ohio Environmental Protection Agency (EPA) under Section 3745-95 of the Ohio Administrative Code. Locally in the City of Warren, it is covered by Ordinance 9765/87, titled "Cross-Connection Control" and passed on March 11, 1987.


The City of Warren requires backflow devices on industrial and commercial water lines for the containment of potential pollution sources in order to protect the public water distribution system. A reduced pressure zone backflow assembly is required on each water line entering an industrial or commercial building. A double check valve assembly is required on each fire line and each fire bypass line.

Backflow preventers are required by the EPA, State law (Ohio Administrative Code 3745-95), and Ohio Plumbing Code (chapter 608) to be installed where there is a potential health or contamination threat within the consumer's plumbing system. All commercial building and residential properties with in-ground irrigation systems require reduced pressure zone backflow prevention devices.

Changes to Backflow Program

Annual Test

To ensure the device is working properly, the consumer is required to have annual testing done by a State-certified tester. The Warren Water Department sends out reminder letters 60 days before your backflow test date. Reports of this annual testing must be maintained by the consumer and forwarded to the Warren Water Department at 580 Laird Avenue, Warren, OH 44484.

Reporting Suspected Cross-Connections

If you suspect that a cross connection exists at your residence or business, please contact Mac Aston at the City of Warren Water Department, either by phone at (330) 841-2758 or email at

Failure to Comply

The City of Warren maintains a list of accounts that are utilizing a backflow prevention device and require testing. The account will remain on the list until we either receive your complete test result form or when we hear from your testing contractor. Failure to comply with the program will result in termination of service.

In addition, under the previously mentioned City ordinance, we reserve the right to request additional on-site surveys.

For more information, please contact:

Isaac (Mac) Aston
Water Department Backflow Division
Phone: (330) 841-2758
Fax: (330) 841-2790

Backflow Prevention Resources

For your convenience, the City of Warren Water Department maintains a list of backflow device testers certified by the State of Ohio. Please note that this is not an exhaustive list; you may select any tester as long as he or she has the appropriate state certification.

The following form shows the information your backflow device tester will send to the Ohio EPA each year.

Please see the following links to review the Ohio EPA's rules and guidelines for backflow prevention.

Water Department
580 Laird Avenue S.E.
Warren, Ohio 44484
Ph: (330) 841-2531
Fax: (330) 841-2790

In case of emergency, 
call (330) 841-2572

Office Hours
Monday – Friday
8:00 AM – 4:00 PM

Staff Contacts
Franco Lucarelli,
(330) 841-2710

Tom Ross
Project Manager

Billing Questions
Rose Nelson,
Office Manager
(330) 841-2701

Water Distribution
Missy Hays,
(330) 841-2974

Water Quality Issues
Valerie Copanic,
Superintendent of Filtration
(330) 841-2942

Kelly O'Grady,
Operations Supervisor
(330) 841-2963

Greg Dellimuti,
Customer Service Supervisor
(330) 841-2702

DJ Sferra Jr.,
Distribution Superintendent
(330) 841-2570

Important Office Numbers
Arranging a payment after shutoff notice:
(330) 841-2705
(330) 841-2706
(330) 841-2908

Customer Service and Billing:
(330) 841-2531

Superintendent of Filtration:
(330) 841-2578

Copyright © 2024 City Of Warren, Ohio.