Overview
Nebraska state law mandates annual testing and certification of backflow prevention devices by state-certified testers. Non-compliance can result in water service shutoffs. A typical test takes 10-30 minutes and costs between $73-$150. Results must be submitted to water purveyors like the Metropolitan Utilities District (MUD).
What is Backflow?
Water typically flows in one direction through plumbing systems. When pressure drops, from main breaks, hydrant use, or line shutoffs, flow can reverse. This reversal could introduce contaminants like fertilizers, chemicals, or bacteria into the clean water supply. The U.S. experiences over 10,000 reported backflow contamination cases annually.
Legal Requirements
Bellevue properties must have backflow preventers installed at cross-connections (points where potable water lines meet non-potable sources like irrigation systems, pools, or boilers). Nebraska State Law and Sarpy County regulations require annual testing for any property posing a potential hazard to the public water supply.
Annual Certification Process
Testing requires:
- Assembly ID (serial number)
- Hazard ID (classification from water district)
- Property address
Only individuals on the State of Nebraska registry of certified backflow assembly testers can perform this work. Water districts charge submission fees ranging $1-$17.
Device Types
- Reduced Pressure Backflow Assembly (RPBA/RPZ): Heavy-duty devices with relief valves, used in high-hazard settings.
- Double Check Valve Assembly (DCVA): Common in fire sprinkler systems using two spring-loaded checks.
- Pressure Vacuum Breaker (PVB): Standard for residential irrigation, requires 12+ inch installation height above the highest water usage point.
Common Maintenance Issues
- Worn rubber seals becoming brittle or fouled
- Spring fatigue reducing tension
- Winter damage from freezing without proper winterization
- Thermal expansion stress from water heaters
Pricing Breakdown
- Base test fee: $73
- Standard inspection range: $75-$150
- Certification/reporting: $50-$100
- Water district submission: $1-$17
- Minor repairs: $150-$350
- Commercial system replacement: $1,000+
Warning Signs of Failure
- Unpleasant odors from drains/faucets
- Discolored water (brown, yellow, rusty tones)
- Bubbling or gurgling drains
- Sudden pressure drops
- Visible leaks from relief valves
Compliance Consequences
Failure to test results in municipal water shutoffs, non-compliance fines, and significant reconnection fees. Property owners assume legal liability if backflow events cause illness.
Frequently Asked Questions
- Only state-certified testers can perform inspections.
- High-risk properties include homes with underground irrigation, pools, or fire sprinklers; commercial establishments like restaurants and medical centers; and industrial facilities.
- Homeowners cannot perform their own testing.
- Differential pressure gauges must be annually calibrated to NIST standards.
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