Charleston Water System
Charleston and surrounding Charleston Water System service territory
Population reference
327,422 people (EPA SDWIS PWS ID SC3210001-related 2026 active CWS queue entry).
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 utility billing is used for standard CWS customer accounts; account timing may vary by meter cycle.
- Rate structure
- Municipal metered water and wastewater charges with fixed customer/service charges and usage-based rates. CWS budget material identifies January 1, 2026 rate changes and separate inside/outside-city schedules.
- Wastewater and sewer calculation
- Water and wastewater are billed as separate CWS components, with stormwater charges historically appearing on the water bill and transitioning to County tax billing for the 2026 service year. No universal winter-average formula was exposed.
- Meter reading
- CWS bills from metered consumption; the reviewed public pages did not identify a universal AMI vendor, hourly interval, or reading calendar.
Context, not a score
How documentation coverage compares
This profile
57%
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
4 of 7 fields in this section contain provider-specific public detail in dataset August 1, 2026.
Documented
57%
Details not confirmed in the reviewed public material
- Residential cost reference
- 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 (SC3210001) ↗
Search the federal drinking-water database using public water system ID SC3210001.