Castle Rock backflow prevention requirements
Start with the utility page to confirm who is affected, accepted submission methods, phone contact, and source evidence.
City backflow route
Castle Rock backflow testing routes through Castle Rock Water Cross-Connection and Backflow Program.
City search demand maps directly to Castle Rock Water's governing certified-tester workflow. This page keeps the city search term visible while routing the actual compliance work to the governing utility record.
City: Castle Rock
Utility: Castle Rock Water Cross-Connection and Backflow Program
Cadence: Annually
Last verified: 2026-06-29
Next action
Pick the Castle Rock backflow path that matches the problem
The city term helps discovery. The governing utility still decides the rule, submission method, tester route, and follow-up order.
Castle Rock annual backflow testing
Annually Castle Rock says annual testing is required, compliance is managed by Castle Rock Water, and only certified testers may work in town.
Castle Rock approved backflow testers
This utility has an official tester-list route. Confirm status on the governing list before treating a provider as approved.
Castle Rock failed backflow test
Use the failed-test page when the assembly has already failed and the next step is repair, retest, and report submission.
Castle Rock irrigation backflow testing
Use this path when the question is tied to sprinkler systems, reclaimed water, outdoor service, or irrigation assemblies.
Castle Rock fire-line backflow testing
Use this path when the assembly serves fire protection equipment or a managed commercial site.
Why Castle Rock maps to Castle Rock Water Cross-Connection and Backflow Program
City search demand maps directly to Castle Rock Water's governing certified-tester workflow.
- Castle Rock Water customers with irrigation, fire suppression, and other protected assemblies that require certified annual testing.
- If the work falls outside the accepted tester and documentation path, the customer risks missing the local compliance requirement.
- Program phone: 720-733-6000
- City route reviewed: 2026-04-05
Source-backed workflow
Castle Rock is a strong Colorado utility because annual testing, tester certification, and the official tester list all line up on the same utility workflow.
Provider layer
Public provider profiles mapped to this utility
Provider profiles can help after the city and utility workflow is clear. They do not replace the official source trail.
Baker Backflow Testing
Officially listed on the Castle Rock tester PDF
Doug's Backflow
Officially listed on the Castle Rock tester PDF
Kaizen Backflow LLC
Officially listed on the Castle Rock tester PDF
Support guides
Read these before acting on the Castle Rock workflow
How we verify local backflow rules
What counts as an official source, how local utility pages override generic assumptions, and how stale pages are re-verified.
Anniversary date vs calendar deadline
Why some utilities track backflow tests by anniversary date, while others push owners into a calendar-season or hard-date deadline.
Residential vs commercial backflow rules
Why the local trigger is rarely just residential versus commercial, and how utilities actually split hazard, irrigation, multifamily, and managed-property cases.
Backflow test cost
How to think about annual testing, repair, and retest pricing without confusing a market quote with the compliance rule.