Rates and Tariff You are here: Home / South Carolina Customer Care / Rates and Tariff Notices 2021-12-21 SCWU-PWR Notice of Rate Adjustment (pdf)2022-05-31 KIU Customer Increase Letter (pdf) Rates and Tariff You can download your current rate schedule below: CUC Rates (pdf)Harbor Island Rate Schedule (pdf)Kiawah-Island-Utility-Rates (pdf)South Carolina Water Utilities - PUI, Inc. Rates (pdf)South Carolina Water Utilities - PWR, Inc. Rates (pdf)South Carolina Water Utilities - Synergy Rates (pdf)TJ Barnwell Rate Schedule (pdf) Have a question? Ask The CEO.