Your sewer fee is based on unique factors with your system.
Harbor Island:
//TODO
TJ Barnwell:
//TODO
CUC:
//TODO
Kiawah Island:
Yes. If you are a residential customer your consumption is charged at a rate of $0.74 per thousand gallons up to 11,000 gallons per month or $8.14. Eleven thousand gallons is used since that is the average domestic consumption for a residential customer. Commercial and Hotel sewer rates are based on all water consumed primarily because their irrigation usage is metered separately and all water going into these facilities is returned to the sewer for disposal and treatment.