BACKFLOW BASE

Backflow Base / Tester certification / Idaho

Backflow tester certification in Idaho.

Idaho licenses Backflow Assembly Testers (BAT) through DOPL under IDAPA 24.05.01. DEQ's drinking water rule requires annual testing of assemblies by a licensed tester. Water systems add their own registration steps.

Last updated .

Who certifies

Idaho Division of Occupational and Professional Licenses (DOPL), Board of Drinking Water and Wastewater Professionals
208-334-3233 · dopl@dopl.idaho.gov

The state issues the certificate testers need.

What it takes

Credential
Idaho Backflow Assembly Tester (BAT) license from DOPL.
Before you start
No experience requirement stated in the rule. A board-approved training program is required.
Training
Successful completion of a board-approved training program.
Exam
Practical examination using University of Southern California (USC) test procedures or other procedures the board approves. Exam scores are valid for one year. Exam provider details not confirmed.
Renewal
License renews annually. Every two years the tester must complete an 8-hour refresher course; it must be in person and board-approved (rule text marked effective 7-1-26).
Test kit
State rule says to use calibrated equipment but gives no interval. Water systems set their own (Coeur d'Alene and Meridian require calibration records on file).
Fees
Rule caps fees at $25 application, $30 per year license, $35 reinstatement. DOPL announced reduced licensing fees in January 2025, so actual amounts may be lower.

Certificates from elsewhere

No other state's certificate is named as valid here. Ask the program before you rely on one.

Compare every state →

Filing test reports

State rule: send the report to the consumer and the water system. Passing tests within 15 business days, failed or defective assemblies within 2 business days (IDAPA 24.05.01 Rule 200, effective 7-1-26). Each water system picks its own channel.

Deadline: 15 business days if the assembly passes; 2 business days if it fails or is defective

Portals in use: Syncta

Largest water systems

Veolia Water Idaho

Contact
208-362-1300
Reports
Veolia's backflow page says annual testing is required but gives no tester submission method, portal or email. Call to confirm.

Meridian Water Department

Contact
208-985-1223 · backflow@meridiancity.org
Reports
Existing assemblies: enter reports in the city's Backflow Prevention Portal. New, removed or replaced assemblies: email backflow@meridiancity.org.
Testers
File the city's Backflow Testers/Contractors form (renewed each October), get added to a business profile by city inspectors, then register a portal account for approval. Passing reports due in 15 business days, failing in 2. Not re-verified.

City of Nampa

Contact
208-468-5504 · crossconnection@cityofnampa.us
Reports
Online Backflow Assembly Test form in the city Waterworks Form Center.
Testers
Testers register with the city and appear on its Approved Backflow Tester List. Insurance, calibration and timing terms not re-verified.

City of Caldwell

Contact
208-455-3070 option 2 · backflow@cityofcaldwell.org
Reports
Page names no submission channel; contact the Cross Connection Department (fax 208-455-3071, PO Box 1179, Caldwell ID 83606). Results usually sent within about 30 days; reports due yearly.
Testers
The city keeps a list of approved licensed testers.

City of Idaho Falls Water Division

Contact
208-612-8471

All 732 Idaho water systems →

Sources

Checked 2026-10-19 against each state's own program pages and rules. Rules change; confirm with the program before you book an exam or a test. Spot something out of date? hello@backflowbase.com.

The software

Contact

hello@backflowbase.com