For years, Washington County has complied with an important Regulatory Water Safety Compliance Program known as Cross-Connection Control.
This state mandated program focuses on non-residential (commercial) water service connections and on-site visual inspections to identify potentially harmful interconnections to the Washington County Public Water Supply
This web page serves to assist Washington County Customers with their participation in this important safety program. The town has selected HydroCorp to assist with Coordination, Site Visits, and Data/Compliance Management.
Chapter 26.04.01.32 of the Code of Maryland Regulations (COMAR) requires the development a cross-connection control plan to secure public water systems. Cross-connection control focuses on eliminating or protecting hazardous interconnections in the public water supply system which, in the event of a backflow incident, could inject pollutants and contaminants into the drinking water.
HydroCorp sends postal notice of upcoming Cross-Connection Inspection. Toll-Free hotline number provided for FAQ.
HydroCorp hired by local water purveyor to assist with CCC Program.
Facility owners have the option to coordinate the date of onsite inspection by HydroCorp.
Cross-Connection Surveyor arrives with I.D. and conducts survey/inspection with permission by owner/occupant.
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.
Water Customer/Owner contacts HydroCorp when corrections are made and onsite compliance inspection is scheduled.
HydroCorp hired by local water purveyor to assist with CCC Program.
HydroCorp sends postal notice of upcoming Cross-Connection Inspection. Toll-Free hotline number provided for FAQ.
Facility owners have the option to coordinate the date of onsite inspection by HydroCorp.
Cross-Connection Surveyor arrives with I.D. and conducts survey/inspection with permission by owner/occupant.
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.
Water Customer/Owner contacts HydroCorp when corrections are made and onsite compliance inspection is scheduled.
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 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 |
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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 |
