Public Water Authority
Charleston Water System
Serving Charleston and regional service area
Population served
327,422 people (EPA SDWIS active CWS PWS SC1010001)
State system code
FIPS 45
Billing frequency
Monthly; water, sewer, and related charges appear on the utility bill.
Provider briefing
How this utility’s billing works
Charleston Water System operates as a public water authority serving Charleston and regional service area. Customers should use the provider’s current account-specific bill and official customer-service instructions as the final authority for deadlines, balances, and service requests.
The published water-rate framework is described as Metered water tariff with fixed and consumption components; 2026 budget materials include rate changes and system investment charges.. Bills are generated monthly; water, sewer, and related charges appear on the utility bill., and a typical residential cost reference is A dedicated this detail was not publicly posted. Exact total requires meter, water usage, sewer, stormwater, and account charges.. These descriptions are useful planning benchmarks; actual charges can change with meter size, usage, sewer averaging, local taxes, drought stages, or account-specific fees.
Wastewater and sewer calculation
Charleston Water bills water and sewer components together; the reviewed 2026 material did not expose a universal winter-average formula.
Meter and infrastructure notes
A dedicated this detail was not publicly posted. No universal AMI/AMR vendor or interval was verified.
Emergency water support
Report a leak or water emergency
843-727-6800 for Charleston Water emergency/service routing.
Official starting point
Choose the right next step
Reading this profile
A practical reference for Charleston and regional service area
Charleston Water System is listed here as a public water authority. The profile separates account actions—such as paying a bill or requesting service—from explanatory material about rates, meters, wastewater, leaks, and delinquency.
Because utility rules can vary by account class, meter size, service address, billing date, and local ordinance, treat the published bill and current provider website as the final authority. Use this profile to locate the correct channel and prepare better questions for customer service.
If your issue is urgent, start with the provider’s emergency number or official payment route rather than waiting for an email response. Keep a written record of calls, confirmation numbers, notice dates, and documents you submit.