Grand Strand Water and Sewer Authority (GSWSA): backflow testing rules
Serves Horry County, SC (Conway). Every point below comes from Grand Strand Water and Sewer Authority (GSWSA)'s own pages, linked; check your notice for your own deadline.
Tester registration
- A certified backflow prevention tester's license expires every three years; recertification requires a 25 question written exam and wet lab tests of a DC, PVB and RP assembly. Source.
- The tester's differential gauge must be accurate to within 2% of full gauge scale or plus or minus.03 psi differential. Source.
Fees
- Testers can recertify by retaking the three day state sponsored certification workshop at a cost of $250 per person. Source.
- GSWSA's backflow prevention recertification application carries a non-refundable $50 application fee, one application per individual. Source.
Program
- GSWSA runs a cross connection program to protect its water system and consumers from establishments that could harm the community water supply through backflow or cross-connection. Source.
How to file your backflow test with Grand Strand Water and Sewer Authority
- Read your notice. It names the assembly, its location and the date the report is due.
- Book a tester Grand Strand Water and Sewer Authority accepts. See finding a tester below; book early so there is time to repair a failed assembly.
- The tester tests the assembly and fills in the test report. A failed assembly is repaired and tested again.
- The report is filed. Ask the tester how they send it to the utility, and get a copy.
- Fees. Testers can recertify by retaking the three day state sponsored certification workshop at a cost of $250 per person. Source.
- Keep a copy and set a reminder for next year. Set a free test-due reminder.
Finding a tester Grand Strand Water and Sewer Authority accepts
We found no tester list on Grand Strand Water and Sewer Authority's own pages. Use a state certified tester, and check your notice in case it names the testers or the portal it accepts.
Before you book, ask the tester:
- Are you registered with Grand Strand Water and Sewer Authority?
- Will you send the test report to the utility for me, and how?
- When is my report due? The date is on your notice; the tester needs time to test, repair if needed and file.
Other water utilities in South Carolina
- Greenville Water
- City of Columbia Water
- Charleston Water System
- Spartanburg Water
- Beaufort-Jasper Water and Sewer Authority
- Mount Pleasant Waterworks
- Startex-Jackson-Wellford-Duncan Water District
- City of Florence
Read October 6, 2026. Program page: gswsa.com.