Charleston Water System
Charleston and regional service area
Population reference
327,422 people (EPA SDWIS active CWS PWS SC1010001)
Billing detail
Partial public detail found
Official destination
Open provider website ↗Provider-specific findings
Billing and account research from public material
Provider-specific research notes are displayed separately from fields that contain only an unavailable-information marker. Read qualifiers in each note and verify current account terms with the provider.
- Billing frequency
- Monthly; water, sewer, and related charges appear on the utility bill.
- Rate structure
- Metered water tariff with fixed and consumption components; 2026 budget materials include rate changes and system investment charges.
- Wastewater and sewer calculation
- Charleston Water bills water and sewer components together; the reviewed 2026 material did not expose a universal winter-average formula.
Context, not a score
How documentation coverage compares
This profile
43%
overview fields with research notes
South Carolina
30%
records with any overview detail
National index
50%
records with any overview detail
Coverage measures what this directory documented. It does not measure service quality, affordability, or regulatory compliance.
Research record
Partial public detail found
3 of 7 fields in this section contain provider-specific public detail in dataset August 1, 2026.
Documented
43%
Details not confirmed in the reviewed public material
- Residential cost reference
- Meter reading
- New-account deposit
- Activation or transfer fee
“Not confirmed” means the directory did not identify a dependable public statement. It does not mean the provider has no policy or option.
Primary verification routes
- Charleston Water System public website ↗
Provider-controlled destination used to confirm current customer instructions.
- EPA SDWIS / ECHO lookup (SC1010001) ↗
Search the federal drinking-water database using public water system ID SC1010001.