Backflow Prevention Cross Connection Program

In accordance with Colorado Department of Public Health and Environment (CDPHE)  Primary Drinking Water Regulations, 5 CCR 1002-11, Section 11.39. 2021 CO Plumbing Code for public water systems, and the Town's 6.28 Ordinance, the Town requires commercial, industrial, commercial common area, and non-single residential water service connections to be annually verified and/or tested for a backflow preventer. The Town, and with your cooperation, strives to protect our water system from backflow contamination that could diminish our water quality. Please email or call at 970-344-5816 if you have any questions about this program.

The Water Department administers the CDPHE regulations and Policy 7 by way of a Backflow Prevention Cross-Connection Control Program (BPCCCP).  This program helps protect the public water system from contamination and waterborne diseases due to a backflow event and thus the water we drink. The aim is to protect the Town and its consumers from water-using facilities which could possibly harm the quality and safety of the water supply by backflow conditions through cross connections. More exactly, CCCP is intended to prevent delivered water - water that has passed beyond the distribution system and into your private plumbing system - from reentering (backflowing) the public water system and being delivered to other consumers.

Certified Backflow Testers: Testers are required to use the Berthoud Backflow Assembly Test and Maintenance Report form for all backflow test submissions to and upload results to

Property Owners and or Managers: You are responsible to provide the Utility Account Service Address and Account Number that are associated with the Backflow Assembly and device location to the tester and to schedule/hire a certified backflow tester. The tester will submit the results to The Town contracted  Aqua Backflow (Aqua) to assist with managing the results for backflow prevention testing and cross-connection control surveys, but does not test, repair, or install backflow preventers. A list of Backflow testers is available at the website under Resources tab. 

  1. Responsibility Lies with You

State regulations require communities to track backflow assembly testing of non-residential properties on a calendar year basis. Therefore, property owners and/or managers are responsible to schedule/hire a Ccertified Backflow Tester to test their backflow preventer(s). 

To ensure accurate reporting by the Tester, Property Owners/Managers must provide the Utility Account Number, Service Address and Backflow Assembly information to the Tester. The Backflow Assembly will be associated with your Utility Account Service Address that is metered for Berthoud public water usage.

A list of Backflow testers is available at the website under Resources tab. Questions, 970-344-5816 or


QUICK LINKS Certified Tester Information

DISCLAIMER: The list of backflow assembly testers is provided as a service for general information only and as a convenience to the public. The Town of Berthoud does not guarantee the validity of the information found in the list. Further, the list of backflow assembly testers neither constitutes any type of relationship between the Town and the individual assembly testers, nor does it constitute any type of endorsement, recommendation, or favoring by the Town. The Town has not verified whether the list of backflow assembly testers is certified, as required by Regulation 11 of the Colorado Department of Public Health and Environment. The Town does not accept any responsibility for any loss or damage that may result during backflow assembly testing by any of these companies listed and disclaim to the fullest extent permitted by applicable law, any and all liability with respect to hiring of these testing companies.

TESTERS: If you would like to be included in this contact list, please email your company's mailing address, email address, and phone number to or

  1. Backflow Tester Requirments
  1. Annual On-Site Verification
  1. More About Backflow Prevention