Cross Connection Control
Cross Connection Control
The Cross Connection Control program is charged with maintaining the high quality of the County's drinking water by preventing actual or potential contamination of the potable (drinking) water with non-potable (contaminated) water and other sources of contamination. Backflow prevention devices and assemblies protect the water supply by making sure that your drinking water cannot flow back through your household or commercial plumbing system and into the County system due to either backsiphonage or backpressure.
Under Maryland Law, Business Occupations and Professionals Article 12-306(c)(2):
"Only a master plumber or journey plumber possessing certification shall be authorized to certify the installation and testing of mechanical cross connection control devices."
The County maintains a courtesy list of plumbers who are registered with the County and are authorized to perform backflow installation, testing and repair in Charles County.
DISCLAIMER: This list of plumbing firms was assembled by the Charles County Department of Public Works–Utilities (DPW–Utilities) as a convenience to our customers. Inclusion on this list is entirely voluntary; the list is intended solely and simply to be a compilation of plumbing firms who have declared that they provide cross connection/backflow preventer related plumbing services. DPW–Utilities has verified that firms on this list are licensed and certified in accordance with Maryland regulations to perform these services. These firms do not work for, nor are they associated in any way with DPW–Utilities and DPW–Utilities assumes no liability for any work performed by a listed company.
DPW–Utilities does not endorse or recommend any company on this list, nor does it set pricing by these companies. DPW–Utilities suggests that customers obtain several estimates before hiring a plumbing firm to test your backflow preventer or provide any other plumbing services.
- has a valid Maryland Home Improvement Commission (MHIC) license. (Why is this important?);
- has a backflow permit issued by Charles County (obtained through the Department of Planning and Growth Management); and
- is a plumber registered with the County to perform backflow installation and testing. (Please read the disclaimer above).
The Cross Connection Control Specialist is also responsible for the County's Hydrant Meter Program. Charles County rents hydrant meters only to licensed contractors. The County does not rent hydrant meters for residential purposes. Please follow this Hydrant Meter link to get more information on hydrant meters, and contact the Cross Connection Control Specialist at 301-609-5606 to check on meter availability.
If you are an existing hydrant meter customer and need to report your monthly meter reading, please click here.