We only accept backflow test results from testers who are on our Approved Tester List.

How to become a CWS Approved Backflow Tester

1. Complete SCDHEC certification.
2. Attend a Charleston Water System orientation session. Contact us for more info.
3. Follow our policies and procedures as outlined in our Cross Connection Control Program Manual.
4. Tester recertification is required every three years ($80 fee.)

Upcoming Backflow Tester Orientations -
Held at our main office, 103 St. Philip Street, Charleston, SC 29403.
Register: backflow@charlestoncpw.com

Tester Recertification

To remain on our List of Approved Backflow Testers, you must complete recertification every three years.

Charleston Water System is an SCDHEC backflow recertification site, and we hold recertification tests quarterly. The fee is $80.

Backflow Tester Recertification Tests