municipal utility · official record
Arlington utility backflow testing requirements
Arlington is a code-driven city: annual testing is tied to health-hazard assemblies, but installation, moves, repairs, replacement, irrigation permits, and fire line work all have separate ordinance triggers.
Fast answer
Who, when, and what device?
Arlington's backflow ordinance requires testing immediately after installation, when an assembly is moved, after repair or replacement, before re-occupancy after a year of vacancy, and at least annually for assemblies protecting against health hazards. The Regulatory Authority can require more frequent testing.
- Who is affected
- Residential and commercial properties with health-hazard assemblies, lawn irrigation systems, fire sprinkler systems, and premises that have been vacant long enough to trigger re-occupancy testing.
- Covered devices
- Health-hazard backflow assemblies · Irrigation backflow devices · Fire line DCVA, detector check, and RPZ assemblies
- Risk if missed
- Arlington's backflow ordinance allows misdemeanor enforcement, treats each day a violation continues as a separate offense, and the ordinance history states violations can carry fines up to $2,000. The irrigation chapter separately carries enforcement and penalty provisions.
What to do now
Choose the task on your notice
The official rule stays on this record; national guidance explains the task.
Exact workflow
Follow the local sequence
- 01
Confirm whether the assembly is in Arlington's health-hazard annual lane or was triggered by installation, vacancy, repair, move, or replacement.
- 02
Use a certified tester registered with Arlington's Regulatory Authority.
- 03
If the work involves irrigation or fire protection, follow the separate permit and contractor rules before treating the job as routine testing.
- 04
Use the City's reporting form and keep assembly records on site.
Tester gate
Who can produce an accepted result?
Confirm tester eligibility directly with Arlington Water Utilities before scheduling.
Submission route
Where the result goes
Use the official program contact and submission method below.
- Water utilities department page department page
- Arlington backflow prevention ordinance official ordinance
- Arlington irrigation ordinance official ordinance
Local detail
Property, device, and enforcement notes
Open the parts that match the property and system. These details stay subordinate to the fast workflow above.
Program and failure notes
- Arlington can require testing more frequently than the minimum annual rule when the Regulatory Authority deems it necessary.
- Using an unregistered tester or ignoring a repair order creates ordinance exposure, not just scheduling delay.
- Fire line repair work cannot be detached from approved fire line contractor requirements.
- Health-hazard assemblies are tested at least annually.
- Assemblies are also tested on installation, move, repair or replacement, and before re-occupancy after a year of vacancy.
- Only certified testers registered with the City's Regulatory Authority can perform the work.
Residential notes
- Residential owners most often run into Arlington's rules through lawn irrigation permits and re-occupancy or repair testing triggers.
- A homeowner should not flatten Arlington into a generic annual rule because the ordinance splits health-hazard annual testing from other event-based triggers.
Commercial notes
- Commercial and other higher-hazard premises are much more likely to sit in the annual testing lane.
- Fire protection, inspection access, and City registration requirements make Arlington more ordinance-heavy than a generic plumber quote suggests.
Irrigation
Arlington's irrigation workflow is permit-led: lawn irrigation systems need a building inspection permit and must comply with the plumbing code, the irrigation chapter, and the backflow chapter together.
- All lawn irrigation systems require a permit from the Building Inspection Department.
- Potable interconnections with alternate water sources are prohibited.
- If reclaimed water is involved, Arlington requires both a reclaimed-water-side double check assembly and an RPZ on the potable side.
Fire line
Arlington is unusually explicit on fire line rules. Fire sprinkler systems use a City-approved DCVA as the minimum in many cases, but an RPZ is required when anything other than potable water can enter the system.
- Fire systems with non-potable-approved piping or without periodic flow-through need at least a City-approved DCVA.
- An RPZ is required when antifreeze, foam, or other non-potable solutions can enter the sprinkler system unless an air gap protects the tank.
- Testing and repair on fire lines must be performed by personnel permanently employed by an approved fire line contractor.
Cost and fee context
$85 to $160 for a routine annual test
$250 to $1,350 depending on access and device type
Arlington's public materials are stronger on ordinance triggers and contractor requirements than on retail pricing, so use local quotes rather than assuming the code reveals price.
Evidence ledger
Official sources
Arlington publishes detailed backflow and irrigation ordinances rather than a consumer-oriented approved tester list. The code is explicit about testing triggers, City registration, irrigation permits, and fire line contractor rules.
BackflowVerdict summarizes these records; the governing entity remains the authority.
Open official program page- 01Arlington Water Utilitiesofficial department pageOpen source ↗
- 02Arlington backflow prevention ordinanceofficial ordinanceOpen source ↗
- 03Arlington irrigation ordinanceofficial ordinanceOpen source ↗
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