Kalawao County Water Quality
Hawaii
According to EPA SDWIS, Kalawao County, Hawaii hosts 1 community water system covering about 110 people. PlainEnviro's health-based extract shows zero systems with a health-based violation record. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Kalawao County, Hawaii hosts 1 EPA-regulated community water system delivering drinking water to approximately 110 people. Each system is catalogued in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which mandates monitoring for dozens of regulated contaminants, public notification when standards are exceeded, and the issuance of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 0 violation records across these active community systems, with 0 systems carrying at least one record. The extract excludes monitoring and reporting violations. The county contains 1 incorporated place where these systems deliver service.
A historical health-based registry row does not establish water delivered today or describe current compliance. For current conditions, request the utility's most recent Consumer Confidence Report or contact the Hawaii drinking water program. Figures shown here reflect only the health-based subset fetched from federal EPA SDWIS.
What water systems serve Kalawao County?
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| KALAUPAPA NHP | 110 | 0 | Clean |
Cities in Kalawao County
How does Kalawao County compare in Hawaii?
Of the 5 Hawaii counties with at least one community water system on file, Kalawao County ranks #5 by number of systems (1).
Either side of it: Honolulu County (20), Kauai County (16)
About This Data
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
Figures here are the current EPA SDWIS extract joined to the 1 community water system whose service area falls in Kalawao County, ranked against the 5 Hawaii counties with at least one system on file. Data current as of 2026-08-10. Editorial standards, methodology, report an error.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
Read our methodology - how this data is sourced, computed, and verified.