Warren County Combined Health District, Lebanon Ohio

Plumbing Inspection Division

The duties of the Plumbing Inspection Division of the Warren County Combined Health District include plan review for new plumbing in commercial and residential buildings, inspection of the plumbing work through all phases of construction, and final approval of the plumbing work prior to occupancy.

The Plumbing Inspection Division is responsible for protecting the water supply by ensuring, through plan review and inspections, that the plumbing has no cross-connections or possibility of backflow. The plumbing inspectors are also responsible for ensuring the waste plumbing is properly vented and trapped so the plumbing safely carries waste away while causing no health problems.

The Plumbing Inspection Division was assigned the task of administering Warren County's Backflow Prevention Program. The program serves to protect the public water supply from contamination.

The Warren County Combined Health District employs four State of Ohio Certified Plumbing Inspectors. By law, only State Certified Plumbing Inspectors can inspect commercial plumbing work. The four plumbing inspectors are responsible for plan review and inspection of all commercial plumbing work in Warren County. They are also responsible for plan review and inspection of all residential plumbing work in Warren County.

In addition, to the aforementioned duties, the four plumbing inspectors provide technical consulting services to homeowners installing their own plumbing. They also work closely with the Environmental Health Division on plumbing related problems in restaurants and grocery stores.


Permit Applications

When filling out your permit application, backflow test sheet and/or homeowner's bond please fill in ALL information. See the examples if you have any question. All forms must be mailed in with proper payment to insure they are processed in a timely fashion.

Backflow Devices

A backflow prevention device is used to protect water supplies from contamination or pollution.

In water supply systems, water is normally maintained at a significant pressure to enable water to flow from the tap, shower etc. When pressure fails or is reduced as may happen if a water main bursts, pipes freeze or there is unexpectedly high demand on the water system, the pressure in the pipe may be reduced and may allow contaminated water from the ground, from storage of from other sources to be drawn into the system. To prevent such an occurrence, many regulatory regimes require there to be an air gap between the delivery point of mains water and local storage or use. Where submerged mains inflow is permitted a backflow prevention device is required. In this way backflow prevention device protects the potable water system from contamination hazards which can be severe. There are over 10,000 reported cases of backflow contamination each year. Some cases can be fatal.

In many countries where regulations allow for the possibility of backflow , backflow prevention devices are required by law and must be installed in accordance with plumbing or building codes.

A typical backflow assembly has test cocks and shut-off valves and must be tested each year, if relocated or repaired, and when installed.

In the United States, the Environmental Protection Agency (EPA) holds local water suppliers responsible for maintaining a certain amount of purity in potable water systems. Many states and/or local municipalities require annual testing of backflow prevention assemblies. A check valve is a common form of backflow prevention.

The simplest and most effective way to provide backflow prevention is to provide an air gap. An air gap is simply a space between any device that opens to a plumbing system (like a valve or faucet) and any place where water can collect or pool. Some cities and municipalities do their own testing of backflow devices for their area. Please contact the appropriate office with any questions or concerns you may have for testing your device:

The Village of Morrow


City of Lebanon


Harveysburg / Warren Co. Water Dept.


City of Springboro


The Village of Waynesville


Western Water


The following people staff the Plumbing Division:

Greg Flum - Chief Plumbing Inspector


Ed Mann. - Plumbing Inspector II


Bill Dopf - Plumbing Inspector II


Rusty Leyes - Plumbing Inspector II


Call between 7:00 - 8:30 AM, Monday-Friday, to Schedule Inspections

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