municipal utility · official record
Lewisville utility backflow testing requirements
Lewisville is strong pilot content because it publishes the annual cadence, official tester list, BSI submission deadline, filing fee, and enforcement language on one page.
Fast answer
Who, when, and what device?
Lewisville says backflow prevention assemblies must be tested at installation and at least once per year thereafter by a licensed tester registered with the City. Test reports must be submitted electronically through BSI Online within ten days of the test date.
- Who is affected
- Irrigation, fire sprinkler, commercial, industrial, multi-family, and other properties the City deems a cross-connection hazard.
- Covered devices
- Backflow prevention assemblies · Irrigation assemblies · Fire assembly devices including fire DCDAs when properly licensed
- Risk if missed
- Lewisville says failure to install, test, and maintain required devices can justify discontinuing water service. The code excerpt on the City page also cites misdemeanor exposure, daily fines of $100 to $1,000, and City recovery of expenses.
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 the property falls into one of Lewisville's listed hazard categories or has received a City notice.
- 02
Use a Texas-licensed tester who is currently registered with the City of Lewisville.
- 03
Submit the completed test through BSI Online within ten days of the test date.
- 04
Use the tester list carefully, because not every tester is licensed for every assembly type.
Tester gate
Who can produce an accepted result?
Texas tester license, City of Lewisville tester registration
View the official tester listSubmission route
Where the result goes
BSI Online submission portal
Submission deadline: within 10 days after testing
Report packet: Registered tester, Correct assembly type, Completed test report, BSI Online submission
Tester credentials: Texas tester license, City of Lewisville tester registration
Look for the CCN, account number, BSI record, device ID, or assembly serial from the reminder.
Report acceptance depends on the named portal and the utility-approved tester route; keep proof that the report was submitted.
- Lewisville backflow testing program page program page
- Lewisville tester registration portal tester registration
- BSI Online submission portal submission portal
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
- Late reports can miss Lewisville's ten-day submission rule even if the test itself was completed.
- The City warns that not every registered tester can test every assembly type.
- Lewisville's code language includes service shutoff and fine exposure.
- At least annual after installation is the baseline rule.
- BSI submission must happen within ten days of the test date.
- Lewisville also adds a $25 filing fee per test submission.
Residential notes
- Residential users usually hit this through irrigation systems and other hazards the City flags at the meter or within the property.
- Not every listed tester can handle every device type, so homeowners need to match the tester to the assembly.
Commercial notes
- Commercial, industrial, multifamily, and managed properties should assume annual testing is part of recurring compliance once the City requires a device.
- Lewisville's code excerpts make service interruption and fine exposure more explicit than many city pages.
Irrigation
Lewisville explicitly names irrigation as one of the common property types that require backflow assemblies and recurring testing.
- Irrigation is not treated as a side topic; it is one of the first examples on the official page.
- Residential irrigation users still have to respect the same tester registration and BSI submission rules.
- Late report submission can keep an irrigation job noncompliant even after the field test is done.
Fire line
Lewisville's tester page and code language make fire assemblies a separate operational concern because not every tester can legally test every fire device.
- Fire sprinkler systems are explicitly named on the official page.
- Lewisville warns that testers need the right credentials for the assembly being tested.
- Fire assembly delays can be more expensive because the enforcement language is stronger and the device type is more specialized.
Cost and fee context
Consumer testing price is market-based, but Lewisville adds a $25 City filing fee per test submission.
Repair and retest pricing depends on assembly type, especially when fire assemblies or larger commercial systems are involved.
Lewisville is unusually transparent about the City fee layered on top of the private tester invoice.
Evidence ledger
Official sources
Lewisville publishes one of the clearer municipal backflow pages in Texas: annual testing cadence, an official tester list, a ten-day electronic submission deadline through BSI, a $25 filing fee, and quoted enforcement language from the code.
BackflowVerdict summarizes these records; the governing entity remains the authority.
Open official program page- 01Lewisville backflow testing pageofficial program pageOpen source ↗
- 02Lewisville tester listofficial listOpen source ↗
- 03BSI Online for Lewisville submissionsofficial tester portalOpen source ↗
Commercial handoff · separate layer
Still need help after reading the rule?
The request keeps this utility ID and source page with the handoff.