A backflow preventer is a safety device installed on a water service line that helps keep drinking water clean. It prevents water from flowing backward into the public water system if pressure changes occur. This helps protect the water supply from contamination.

Backflow happens when water flows in the wrong direction. If pressure in the public water system drops due to a water main break, firefighting activities, or heavy water use, water from homes or businesses could be pulled back into the public water system. This may allow contaminants to enter the drinking water supply.

Backflow preventers help protect public health by preventing contaminants from entering the drinking water system. They are an important part of keeping our community's water safe and clean.

Backflow prevention devices protect the public water system from contamination and help ensure that drinking water remains safe for all customers.

Potential contaminants may include:

• Chemicals
• Fertilizers
• Pesticides
• Industrial fluids
• Standing water
• Other non-potable water sources

Preventing contamination is far less costly and far safer than correcting contamination after it occurs.

Under West Virginia regulations, certain properties may be required to install a backflow prevention assembly if a potential hazard exists to the public water supply. Examples include:

Residential Properties

• Irrigation or lawn sprinkler systems
• Private wells connected to plumbing
• Swimming pools, hot tubs, or large water storage tanks

Commercial & Industrial Properties

• Restaurants
• Medical and dental offices
• Manufacturing facilities
• Car washes
• Apartment complexes
• Hair Salons
• Funeral Homes
• Commerical buildings- ie Grocer
• Any business with equipment connected to the water system

Fire Protection Systems

• Fire sprinkler systems
• Fire suppression systems

Requirements are determined based on the level of risk identified during a review or inspection of the property.

Backflow prevention assemblies are required to be tested periodically by a certified tester. PSD #4 and WV Department of Health require annual (every 12 months) testing to verify the device is operating properly and continuing to protect the public water supply.

Annual Testing Helps Ensure:

✓ Safe drinking water

✓ Compliance with state regulations

✓ Proper operation of the device

✓ Continued protection of the water system

Testing must be performed by an individual who is certified through the West Virginia Backflow Prevention Assembly Tester Certification Program. Only certified testers are authorized to conduct official backflow prevention testing.

WV Health Department Website : WV HHR Testers list

If a backflow prevention assembly fails testing:

1. The device must be repaired or replaced.
2. The assembly must be retested.
3. Documentation of the passing test must be provided as required.

These steps help ensure the water system remains protected from contamination.

he property owner is responsible for:

• Installation costs
• Testing costs
• Repairs
• Maintenance
• Replacement of the assembly when necessary

Maintaining a functioning backflow prevention assembly is part of protecting both private property and the public water system.