The South Carolina Department of Health and Environmental Control (SCDHEC), through the State Primary Drinking Water Regulation (R.61-58), regulates water utilities and specifies instances when an advisory or notice must be issued. An advisory must be issued in the following instances:
- If untreated water reaches the distribution system
- Loss of pressure in the entire distribution system or a significant portion of the system
- A water main break where dirt and debris have entered the distribution piping
- Prior to a hurricane making landfall (in this situation, the advisory would be issued by DHEC)
A Boil Water Notice must be issued under the following circumstances:
- When test samples indicate the presence of total coliform bacteria
These situations are not the only times when an advisory or notice should be issued. Specific situations, upon consultation with DHEC, may also require an advisory or notice.