Cross-Connection Control Program

Residential Cross-Connection Control Program

Ensuring Clean, Safe Drinking Water and Regulatory Compliance is Bloomfield Township's top priority.

For over 15 years, The Township has complied with an important Regulatory Water Safety Compliance Program known as Cross-Connection Control.

Until recently, this State Mandated Program focused on non-residential (commercial) water service connections and onsite visual inspections (coordinated and performed by HydroCorp of Troy, MI) to identify potentially harmful interconnections to the Bloomfield Township Public Water Supply.

Inspection Schedule Map

Click image to enlarge

Michigan Department of Environment, Great Lakes and Energy (EGLE) are now requiring Public Water Systems to implement a similar Cross-Connection Control Program addressing Residential Water Service Connections.

This web page serves to assist Bloomfield Township Water Customers with their participation in this important safety program. The Township has selected HydroCorp Inc. to assist with Coordination, Site Visits, and Backflow Preventer Testing of Residential Lawn Irrigation System Backflow Preventers (if such system is present during the time of Inspection).

How Cross-Connection's Can Affect Your Home

Additional Info

Visit your township's website OR call HydroCorp toll free at 844-493-7641

Check Your Mailbox

Authorized Contractor HydroCorp sends postal notice with instructions to the residence.

Inspection Day

Cross-Connection Surveyor arrives with I.D. and conducts exterior inspection. Surveyor documents existing and any potential corrective actions, explains next step responsibilities to owner. Corrective actions instructions are also mailed via postal to building owner with compliance due date.

Testing

If lawn irrigation with a testable type backflow preventer is confirmed, a performance test of the backflow preventer will be performed at no charge. If the assembly does not pass the performance test, corrective action instructions will be provided in writing, with compliance due date.

Contact Us

Water Customer/Owner contacts HydroCorp when corrections are made and onsite compliance inspection is scheduled.

Check Your Mailbox

Authorized Contractor HydroCorp sends postal notice with instructions to the residence.

Schedule

Township Water Customers can visit the website OR call HydroCorp toll free at
844-493-7641

Appointment Day

Cross-Connection Surveyor arrives with I.D. and conducts exterior inspection. Surveyor documents existing and any potential corrective actions, explains next step responsibilities to owner. Corrective actions instructions are also mailed via postal to building owner with compliance due date.

Testing

If lawn irrigation with a testable type backflow preventer is confirmed, a performance test of the backflow preventer will be performed at no charge. If the assembly does not pass the performance test, corrective action instructions will be provided in writing, with compliance due date.

Contact Us

Water Customer/Owner contacts HydroCorp when corrections are made and onsite compliance inspection is scheduled.

RESIDENTIAL WATER CUSTOMERS

Cross-Connection and Backflow FAQ

PART I: INSPECTIONS / SURVEYS

A cross-connection is an actual or potential connection between the safe drinking water (potable) supply and a source of contamination or pollution. State plumbing codes require approved backflow prevention methods to be installed at every point of potable water connection and use. Cross-Connections must be properly protected or eliminated.

HydroCorp has been contracted by Bloomfield Township to assist with the Cross-connection Control (CCC) Program. The CCC program includes two parts: On-site inspections and testing of existing backflow prevention assemblies. The HydroCorp inspector will be conducting a visual inspection of the water uses outside of your home (outside spigots, lawn irrigation system, secondary sources of water, pools, etc.) to identify cross-connections that could possibly contaminate your drinking water or the public water supply.

Bloomfield Township has had a CCC program for a number of years, which began with inspections of all of the commercial and industrial accounts. As a natural progression of our program we are now inspecting residential customers as required by the State.

All water customers (residential and nonresidential) connected to the public water supply are required to be inspected for cross-connections. Due to the total number of homes that shall be  inspected, not all inspections can be completed in 1 year. Therefore, the Bloomfield Township program is a 6-year program where all homes will receive the first inspection in any 1 year from 2021 thru 2026. Below is a map indicating when inspections will occur for each region of the township.

An average inspection normally takes from 10 to 20 minutes, depending on the size of your home/property.

NO. HydroCorp will not be entering your home and they will only require access to your front and backyard. The HydroCorp Inspector will also walk around the perimeter of the house to observe exterior hose connections and (if applicable) lawn irrigation system backflow preventers.

Yes. We just need a name and number so that the inspector can contact you to set up a time that is convenient for you.

If you are the owner of the home being inspected, you are responsible for any needed repairs. Renters may have to refer to their lease agreements in order to determine whether they are responsible for repairs.

All HydroCorp inspectors wear photo ID badges during inspections and are prepared to provide appropriate documentation verifying their identities.

Yes. These inspections are conducted in order to ensure compliance with state regulations to maintain the safety of your drinking water.

Penalties for refusing to cooperate with inspections and/or refusing to make needed repairs are determined by your local water utility. These typically can include termination of water service, a fine, or both.

PART II: BACKFLOW PREVENTION ASSEMBLY TESTING

Just like any other mechanical device, backflow prevention assemblies are prone to wear and tear, and do break down from time to time. Regular testing is required in order to ensure that your device remains in proper working order.

Bloomfield Township’s Cross-Connection Control Program requires a minimum testing frequency of every 3 years for irrigation system backflow prevention assemblies. If you are injecting chemicals into your lawn irrigation system, state regulations and plumbing codes require the backflow preventer to be tested on an annual basis.

“Grandfathering” is not typically permitted due to the high importance of maintaining drinking water safety. Just like any other mechanical device, backflow prevention assemblies are prone to wear and tear, and do break down from time to time. Regular testing is required in order to ensure that your device remains in proper working order.

PART III: GENERAL RESOURCES

The anti-siphon fill valve device is located in the tank of your toilet. This device has a dual purpose: To fill the toilet and prevent backflow. This device must be placed at the proper height in order to insure that water from your toilet does not backflow into your drinking water. Proper placement is typically done during the installation process but can be easily overlooked. This device must be raised or the overflow pipe must be cut down in order to achieve a 1” air gap separation between the “critical level” of the assembly.

Click here to see an installation diagram.

Click here for 3 minute video overview.

Residential Cross-Connection Control Survey | Exterior from HydroCorp on Vimeo.

Example: Hose connection vacuum breakers

 

Example: Integrated vacuum breaker on outside hose spigot.

Example: Hose end in bucket

 

Example: Hose end in pool

 

 

 

Vacuum breaker should not be subject to continuous pressure like the example here illustrates. (This type of irrigation set up/system would need to be corrected.)

These require periodic performance testing by a  Certified Tester. 

Pressure Vacuum Breaker Assembly

 

Reduced Pressure Principle Backflow Prevention Assembly

Commercial Facility Water Customers

Cross-Connection and Backflow FAQ

PART I: INSPECTIONS / SURVEYS

A cross-connection is an actual or potential connection between the safe drinking water (potable) supply and a source of contamination or pollution. State plumbing codes require approved backflow prevention methods to be installed at every point of potable water connection and use. Cross-Connections must be properly protected or eliminate

HydroCorp has been contracted by Bloomfield Township to assist with their Cross-connection Control (CCC) Program. The CCC program includes two parts: On site inspections and testing of backflow prevention assemblies. The HydroCorp inspector will be conducting a visual inspection of the water uses outside of your facility (outside spigots, lawn irrigation system, secondary sources of water, pools, etc.) to identify cross-connections that could possibly contaminate your drinking water or the public water supply. If your water provider requires an inspector to enter your facilty to evaluate other cross-connection and plumbing hazards inside your residence, you will be notified and instructed to schedule an appointment for your inspection.

Hose Connection Vacuum Breaker Video

Residential Cross-Connection Control Survey | Exterior from HydroCorp on Vimeo.

Bloomfield Township has had a CCC program for over 15 years, which began with inspections of all of the commercial and industrial accounts. As a natural progression of our program we are now inspecting residential customers as required by the State.

All water customers (residential and nonresidential) connected to the public water supply are now required to be inspected for cross-connections. Initial residential inspections will occur from June 2021 through 2026. Residential inspections will occur by region according to this map:

An average inspection normally takes from 10 to 20 minutes, depending on the size of your facility/property.

If you received a letter informing you/the facility of an upcoming cross-connection inspection, please arrange for the appropriate manager/person is aware of the planned inspection. Access will be necessary for the inspector to visually observe all exposed hot/cold potable water plumbing connections.

Yes. We just need a name and number so that the inspector can contact you to set up a time that is convenient for you.

If you are the owner of the facility being inspected, you are responsible for any needed repairs. Renters may have to refer to their lease agreements in order to determine whether they are responsible for repairs.

All HydroCorp inspectors wear photo ID badges during inspections and are prepared to provide appropriate documentation verifying their identities.

Yes. These inspections are conducted in order to ensure compliance with state regulations to maintain the safety of your drinking water.

Penalties for refusing to cooperate with inspections and/or refusing to make needed repairs are determined by your local water utility. These typically can include termination of water service, a fine, or both.

PART II: BACKFLOW PREVENTION ASSEMBLY TESTING

Just like any other mechanical device, backflow prevention assemblies are prone to wear and tear, and do break down from time to time. Regular testing is required in order to ensure that your device remains in proper working order.

As required by Michigan Uniform Plumbing Code, backflow Prevention assemblies connected to Non-Residential plumbing shall be tested annually by an ASSE Certified Tester. If you are injecting chemicals into your lawn irrigation system, state regulations and plumbing codes require the backflow preventer to be tested on an annual basis.

There are two parts to the Cross-connection Control Program. The first is an on site inspection by a cross-connection control inspector to ensure that the proper backflow prevention devices and assemblies are in place to protect your drinking water. Some of the assemblies the inspector finds or asks you to install are testable assemblies, which are mechanical and can malfunction. The testing notice refers to testing the operation of these backflow prevention assemblies. These tests must be performed by a certified tester.

“Grandfathering” is not typically permitted due to the high importance of maintaining drinking water safety. Just like any other mechanical device, backflow prevention assemblies are prone to wear and tear, and do break down from time to time. Regular testing is required in order to ensure that your device remains in proper working order.

PART III: GENERAL RESOURCES

The anti-siphon fill valve device is located in the tank of your toilet. This device has a dual purpose: To fill the toilet and prevent backflow. This device must be placed at the proper height in order to insure that water from your toilet does not backflow into your drinking water. Proper placement is typically done during the installation process but can be easily overlooked. This device must be raised or the overflow pipe must be cut down in order to achieve a 1” air gap separation between the “critical level” of the assembly.

Click here to see an installation diagram.

Click here for 3 minute video overview.

Example: Hose connection vacuum breakers

 

Example: Integrated vacuum breaker on outside hose spigot.

Example: Hose end in bucket

 

Example: Hose end in pool

 

 

 

Vacuum breaker should not be subject to continuous pressure like the example here illustrates. (This type of irrigation set up/system would need to be corrected.)

These require periodic performance testing by a  Certified Tester. 

Pressure Vacuum Breaker Assembly

 

Reduced Pressure Principle Backflow Prevention Assembly