Kauai County, Hawaii Water Systems

Kauai County, Hawaii

27 community water systems on record — 16 active, 11 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Hawaii’s official records. Always confirm current status with Hawaii before making decisions based on this information.

Community water systems in Kauai County, Hawaii

System name	City	Population served	Status
ANAHOLA	LIHUE	2,473	Active
ANAHOLA FARM LOTS	LIHUE	385	Active
ANINI	LIHUE	174	Active
DOW KALAHEO TREATMENT PLANT	—	370	Inactive
GAY & ROBINSON	KAUMAKANI	1,271	Active
GAY & ROBINSON	—	186	Inactive
HAENA-WAINIHA	LIHUE	833	Active
HANALEI	LIHUE	500	Active
HANAPEPE-ELEELE	LIHUE	5,592	Active
KAHILI MOUNTAIN PARK	KOLOA	175	Active
KALAHEO-KOLOA	LIHUE	12,660	Active
KEALIA	KALAHEO	260	Active
KEKAHA DIST	—	500	Inactive
KEKAHA-WAIMEA	LIHUE	5,998	Active
KILAUEA	LIHUE	3,420	Active
KOLOA GROVE FARM CO.	LIHUE	40	Inactive
LIHUE-KAPAA	LIHUE	34,854	Active
MOLOAA	HONOLULU	44	Inactive
MOLOAA IRRIGATION COOPERATIVE	ANAHOLA	100	Active
OLOKELE	—	1,621	Inactive
PACIFIC MISSILE RANGE FACILITY	JBPPH	1,200	Active
PORT ALLEN	—	100	Inactive
PRINCEVILLE	PRINCEVILLE	6,911	Active
PUHI	LIHUE	2,206	Inactive
WAHIAWA	—	300	Inactive
WAILUA-KAPAA	LIHUE	17,179	Inactive
WAIMEA	—	1,867	Inactive