2022 Residential Water, $660.00 2023 Residential Water, $660.00 2024 Residential Water Usage cost will be billed by Summer 2024 2024 Sale/Transfer of Ownership – Administrative, $550.00 2024 Purchase of Water Connection, $ 16,500.00   Pay Now Horizon Hills Water System accepts online payments.  For security reasons we do not store your personal information.  Checks for payment made be mailed to: Horizon Hills Water System, Inc. P.O. Box 1226 Carlsborg, WA 98324   PLEASE INCLUDE YOUR CONTACT INFORMATION AND PHYSICAL ADDRESS AND/OR LOT NUMBER WITH PAYMENT(S)