Honolulu County, Hawaii

EPA Safe Drinking Water Act

  • Public Drinking Water Systems

    40

  • Community Water Systems

    31

  • Systems with Violations

    2

  • Systems with Health Based Violations

    0

  • Systems Listed as Serious Violators

    0

  • Unresolved SDWA Violations

    2

  • Oldest Unresolved Violation

    03/13/2023

  • Population Served

    1,128,562

EPA National Pollutant Discharge Elimination System

  • CWA Percent Non-Compliant

    0.06%

  • CWA Non-Compliant Systems

    2

  • CWA Total Violations

    110

The American Community Survey

  • HOUSEHOLDS LACKING COMPLETE PLUMBING FACILITIES (5-YEAR AVERAGE)

    1,449

  • PERCENTAGE OF HOUSEHOLDS LACKING COMPLETE PLUMBING FACILITIES

    0.434%

  • TOTAL POPULATION

    1,010,100

  • MEDIAN HOUSEHOLD INCOME (5-YEAR AVERAGE)

    $99,816

  • PERCENTAGE OF FAMILIES BELOW POVERTY LEVEL (5-YEAR AVERAGE)

    3.4%

  • MALE

    512,085

  • FEMALE

    498,015

  • MEDIAN AGE

    38.8

  • MULTIRACIAL

    906,707

  • WHITE

    175,963

  • AFRICAN AMERICAN

    23,555

  • LATINO

    103,393

  • ASIAN

    426,815

  • AMERICAN INDIAN

    1,495

  • NATIVE PACIFIC ISLANDER

    94,883

To learn more about individual water systems and violations please visit the echo.epa.gov interactive map for this county here: https://echo.epa.gov/facilities/facility-search/results?p_st=HI&p_fips=15003 Other .gov state water resources: https://catalog.data.gov/dataset/hawaii-clean-water-branch-cwb-beach-water-quality-data Additional state water resources:https://www.ewg.org/tapwater/system.php?pws=HI0000331