Charleston Water System (CWS) is anticipating a 10% increase in water rates for its customers starting January 1, 2026. The increase is a result of necessary infrastructure relocation tied to the Lowcountry Rapid Transit project and other transportation sales tax-funded initiatives.
Impact of Infrastructure Relocation
CWS officials recently presented to the Charleston County Council about the need to relocate water pipes to accommodate the ongoing construction of these projects. Mike Saia, public information administrator for CWS, explained that some of the water pipes, which have been in place since the early 1900s, are located directly under Rivers Avenue, where stormwater pipes for the transit project will be built.
The water system will need to move 21 miles of water mains to make room for the new infrastructure, at an estimated cost of $64 million. Many of these pipes are nearly 100 years old, adding complexity to the relocation process. Saia stressed that this situation is “delicate,” given the age and importance of the water lines serving downtown Charleston.
Cost and Responsibility for Relocation
The cost of relocating the water pipes will likely be shared between CWS and the county. Jenny Costa Honeycutt, a Charleston County Council member, explained that under certain circumstances, the county is responsible for covering a portion of the relocation costs if utility conflicts arise during infrastructure projects. However, if no easements are available, CWS may be responsible for the full cost of the relocation.
“We have a procedure in place under certain circumstances, and the county’s responsible for a portion of those relocation fees,” Honeycutt said. “Sometimes we relocate for the water system, sometimes they pay to do it themselves.”
Impact on Water Rates
CWS has already approved a 7% rate increase for its users. With the additional 3% increase due to the infrastructure relocation project, customers can expect a total rate increase of 10% starting January 1, 2026. Saia emphasized that the cost of this specific project would directly impact customers.
“The reality is that the businesses and families who pay our rates are going to have to pick up that tab. When you do the math, that’s going to equate to an additional 3% rate increase, on top of the 7% increase we already have scheduled. You’re looking at a 10% increase, and what we’re talking about is this one project alone,” Saia explained.
Previous Presentations and Future Updates
CWS previously presented similar information to the City of Charleston in June 2025. As construction progresses, further updates regarding the project and potential impacts on water rates will be provided.
