Does City of Longmont Backflow Prevention and Cross-Connection Control require annual backflow testing?

Annually with utility due dates between April and September. Longmont requires annual testing by certified testers, says new and replacement assemblies must be tested after installation, and publishes a notice-and-enforcement sequence that starts 45 days before the due date and can escalate to civil penalties and water suspension.

How do I submit or confirm a backflow test for City of Longmont Backflow Prevention and Cross-Connection Control?

Use the official utility workflow and submission methods listed on this page: Longmont backflow prevention program. Program phone: 303-651-8416.

Which backflow reporting portal does City of Longmont Backflow Prevention and Cross-Connection Control use?

The stored submission route is: Longmont backflow prevention program (program page). Follow the utility workflow first because tester enrollment, filing fees, and pass/fail handling can differ by jurisdiction. The matching portal hub on BackflowPath is Compare SwiftComply portal utilities.

Where should I look for testers for City of Longmont Backflow Prevention and Cross-Connection Control?

No public tester directory is live for this utility yet. Use the official utility page first and do not infer approval from a generic directory.

What should I check before scheduling a tester for City of Longmont Backflow Prevention and Cross-Connection Control?

Confirm the due basis, property type, device type, and submission method before booking. Then confirm tester eligibility directly with the utility or portal, and make sure the report can be filed through the required utility or portal path.

What costs or portal fees should I expect for City of Longmont Backflow Prevention and Cross-Connection Control?

Testing is market-priced, but Longmont adds a $10 passing-test portal charge and escalating late-compliance costs. Repair and retest costs rise quickly on irrigation upgrades and failed assemblies. The main cost pressure is avoiding late fees, civil penalties, and shutoff scheduling.

Portal city route

Longmont backflow reporting portal

Use this page when a notice for Longmont mentions BSI, SwiftComply, WEIRS, VEPO, a customer portal, or online backflow test report submission.

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City: Longmont Utility: City of Longmont Backflow Prevention and Cross-Connection Control Cadence: Annually with utility due dates between April and September Last verified: 2026-06-29

Local answer

What to check for Longmont

Use this page when a notice for Longmont mentions BSI, SwiftComply, WEIRS, VEPO, a customer portal, or online backflow test report submission.

Due basis: Longmont requires annual testing by certified testers, says new and replacement assemblies must be tested after installation, and publishes a notice-and-enforcement sequence that starts 45 days before the due date and can escalate to civil penalties and water suspension.
Who is affected: Longmont customers with backflow assemblies, especially non-single-family properties, irrigation services, and homes with higher-hazard conditions like fire suppression or boilers.
Program phone: 303-651-8416

Evidence-backed next step

Use the governing utility workflow

City search demand maps directly to Longmont's governing backflow program and enforcement workflow.

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Local signals

Signals that matter before you act

Longmont backflow prevention program - program page
Due basis: Longmont requires annual testing by certified testers, says new and replacement assemblies must be tested after installation, and publishes a notice-and-enforcement sequence that starts 45 days before the due date and can escalate to civil penalties and water suspension.
Program phone: 303-651-8416

Workflow

Longmont workflow order

Check the Longmont due date and reminder timeline.
Test with a certified tester and submit through the current city workflow.
Resolve failed irrigation or replacement issues quickly.
Stay ahead of the fee and penalty ladder before service interruption is scheduled.

Official source trail

Source-backed utility record

Longmont is one of the strongest Colorado pages because it publishes annual due-date ranges, a 45-day reminder, fee and penalty escalation, and a hard shift to SwiftComply for test submissions.

Longmont backflow prevention program official program page

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