Public water system · HI0000434
ActiveKalaheo-Koloa
Community water system in Kauai County, Hawaii, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
12,660
Service connections
5,376
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2000-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 1992-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1992-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 3 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Kalaheo-Koloa: frequently asked questions
Is Kalaheo-Koloa's water safe to drink?
Kalaheo-Koloa is an active community water system regulated under the Safe Drinking Water Act, overseen by the HI state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Kalaheo-Koloa?
Kalaheo-Koloa (PWSID HI0000434) is a local government-owned community water system, regulated by the HI state drinking water program.
How many people does Kalaheo-Koloa serve?
Kalaheo-Koloa reports serving 12,660 people through 5,376 service connections in Kauai County, Hawaii.
Where does Kalaheo-Koloa get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Kauai County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lihue-Kapaa | Kauai | 34,854 | Community | Surface water |
| Princeville | Kauai | 6,911 | Community | Groundwater |
| Kekaha-Waimea | Kauai | 5,998 | Community | Groundwater |
| Hanapepe-Eleele | Kauai | 5,592 | Community | Groundwater |
| Kilauea | Kauai | 3,420 | Community | Groundwater |
| Anahola | Kauai | 2,473 | Community | Groundwater |
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.