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Grand Junction irrigation backflow testing

Grand Junction is especially useful for irrigation because the city publishes a dedicated PVBA page for sprinkler systems tied into the domestic water supply.

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City: Grand Junction Utility: City of Grand Junction Backflow Prevention Program Cadence: At installation, annually, and when moved or repaired Last verified: 2026-06-29
Local answer

What to check for Grand Junction

Grand Junction is especially useful for irrigation because the city publishes a dedicated PVBA page for sprinkler systems tied into the domestic water supply.

  • Due basis: Grand Junction says backflow preventers are required under Colorado drinking-water regulations and city resolution, and that PVBAs must be tested at installation, annually, and when moved or repaired.
  • Who is affected: Grand Junction homes, businesses, sprinkler systems, fire-sprinkler systems, and other services that could contaminate the public water supply if backflow protection is missing.
  • Program phone: 970-256-4101
Evidence-backed next step

Use the governing utility workflow

City search demand maps directly to Grand Junction's governing backflow prevention program.

Open irrigation workflow
Local signals

Signals that matter before you act

  • Only one PVB is required to serve the whole system when installed correctly.
  • PVBAs must sit at least 12 inches above the highest point they serve.
  • No chemicals or fertilizers may be introduced into a system equipped with a PVBA.
Workflow

Grand Junction workflow order

  1. Confirm the sprinkler or irrigation system is tied into domestic water.
  2. Install the PVBA at the required height and layout.
  3. Keep annual, moved, and repaired-device tests current.