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Cross Connection Control

What Do Testers Need To Know?
Contractor List for Cross Connection / Backflow Prevention
Residential Cross Connection Control District Map
Residential Cross Connection Control Program Informational Brochure
Skilled Trades Regulation Act

The DPW Water and Sewer Division is the entity charged with providing safe drinking water to Novi residents and businesses. State and Federal Laws (Safe Drinking Water Acts) require that the City of Novi protect water supply to the customer’s tap. The Plumbing Code, Michigan Residential Code, and the City of Novi Code of Ordinances also require that the City verify that cross connections on private plumbing systems do not pose a contamination risk to the public water supply through the enforcement of the Michigan Department of Environmental Quality (MDEQ) Law and Rules for Cross Connection Control.

As part of the cross connection control program, the Water and Sewer Division will be performing inspections of residential, commercial, and industrial cross connections to ensure that backflow prevention devices are in place, and present on the plumbing systems. This may include testable and non-testable devices. Testable devices must be tested.
 

Consumers also share in the responsibility for protecting the water supply by properly maintaining their plumbing systems in a safe condition.

Click here to review Commercial Cross Connection Control

Click here to review Residential Cross Connection Control

Collage of water control equipment and a glass of water

Commercial Information

Forms

 

Fire Sprinkler System Upgrade / Time Extension Request

Please complete the fillable form requesting a time extension for the required maintenance upgrade for your fire sprinkler system backflow prevention assembly. Once the fillable areas are completed, please print the request on your company letter head, sign and return an original copy to the Water & Sewer Division. The time extension request should be based upon a reasonable, realistic time period needed for corrective upgrade measures to your fire sprinkler system noting the urgency and importance of protecting the public drinking water supply and the process necessary to complete the corrective measures including your internal process.

Backflow Preventer Test Report

Attachment A - Fire Sprinkler System Backflow Prevention Corrective Options

Informational

Cross Connection Control Handbook
 

Contractor List for Cross Connection / Backflow Prevention

50 Cross Connection Questions, Answers & Illustrations

Stop Backflow News!  Case Histories & Solutions

Cross Connection Control Manual

Residential Information

Forms

 

Backflow Preventer Test Report

Mandatory Residential Cross Connection Plumbing Inventory Worksheet - (Updated February 24, 2023)

(Instructions for Mandatory Residential Cross Connection Plumbing Inventory Worksheet)

Failed Backflow Preventer

Failed Backflow Preventer

Improper winterization of your backflow preventer = $$$

Informational

Watch the video How to properly winterize your lawn irrigation system

Watch the video Winterizing Your Hose Bib Vacuum Breakers and Hose Connections

Handout Lawn Irrigation Cut and Cap

Is your laundry tub cross connected creating a cross contamination hazard?

Contractor List for Cross Connection / Backflow Prevention

Residential Cross Connection Control District Map

Cross Connection Control Handbook

FEBCO 765 Freeze Protection Guidelines
 

Picture Identifier / Residential Backflow Prevention Devices

Hose Bib Protection Identifier

50 Cross Connection Questions, Answers & Illustrations

Stop Backflow News!  Case Histories & Solutions

Cross Connection Control Manual

 Water Assisted Backup Sump Required Protection

Solar Water - Heating Systems

Bidets – Protective Requirements for Installation

Setting Up A Safe Toilet To Protect Against A Backflow Event

Pressure Vacuum Breaker

High Sprinkler Head High Sprinkler Head

The Pressure Vacuum Breaker (PVB) backflow preventer is on the right, above the red line. The Sprinkler head, circled in yellow, must be 12 inches below the red line

The Pressure Vacuum Breaker (PVB) backflow preventer (white arrow). The Backflow Preventer, measured from the red line, must be 12 inches above the highest sprinkler head. In this picture, the backflow preventer must be raised or sprinkler heads must be lowered

Cross Connection Videos

Introduction to Cross Connectors

Common Backflow Preventers in Your Home

Testing a Backflow Preventer

Lawn Irrigation

Winterization of Lawn Irrigation Backflow Preventers

Winterizing Your Hose Bib Vacuum Breakers and Hose Connections