County of Kaua'i Department of Public Works, Division of Wastewater Management

Sewer Connection Charge and Wastewater Treatment Capacity Assessment

Kaua'i County runs public sewer in six areas — Waimea, Eleele, Hanapepe, Lihue, Hanamaulu, and along Kuhio Highway in the Wailua and Kapaa corridor — with privately operated systems in Puhi, Poipu and Princeville. A business connecting to the County system pays two separate one-time charges, both set by water-meter size in Ordinance No. 1131, effective July 1, 2023. The sewer connection charge under §25-11.1 applies 'If an area to be served has not been previously assessed' and runs from $948 for a 5/8- or 3/4-inch meter to $15,800 for a 4-inch meter; §25-11.3 adds no charge for one connection to an assessed lot whose assessment has been paid. The wastewater treatment capacity assessment under §25-12.1 runs from $3,080 to $51,340 for the same sizes and 'shall be paid in full prior to the issuance of a building permit.' Above a 4-inch meter both are charged per gallon per day of approved sewer flow, at $3.088 and $10.034; the codified Code prints those two rates as '$3,088' and '$10,034', and the figures here are the ordinance's own. A later change of use that intensifies the connection brings additional charges under the same schedules. Monthly sewer user charges are billed separately. The County does not regulate cesspools or septic tanks: outside the sewered areas a business deals with the State Department of Health, Kaua'i District Health Office, 3040 Umi Street, Lihue, (808) 241-3323. Confirm the charges for a specific connection with the Division at (808) 241-4082.