Cook County, Illinois

EPA Safe Drinking Water Act

  • Public Drinking Water Systems

    444

  • Community Water Systems

    161

  • Systems with Violations

    58

  • Systems with Health Based Violations

    0

  • Systems Listed as Serious Violators

    2

  • Unresolved SDWA Violations

    140

  • Oldest Unresolved Violation

    11/27/2013

  • Population Served

    5,318,939

EPA National Pollutant Discharge Elimination System

  • CWA Percent Non-Compliant

    1.82%

  • CWA Non-Compliant Systems

    28

  • CWA Total Violations

    261

The American Community Survey

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

    6,907

  • PERCENTAGE OF HOUSEHOLDS LACKING COMPLETE PLUMBING FACILITIES

    0.334%

  • TOTAL POPULATION

    5,225,367

  • MEDIAN HOUSEHOLD INCOME (5-YEAR AVERAGE)

    $78,304

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

    4.8%

  • MALE

    2,554,641

  • FEMALE

    2,670,726

  • MEDIAN AGE

    37.5

  • MULTIRACIAL

    3,872,885

  • WHITE

    2,148,173

  • AFRICAN AMERICAN

    1,170,790

  • LATINO

    1,352,482

  • ASIAN

    402,605

  • AMERICAN INDIAN

    3,917

  • NATIVE PACIFIC ISLANDER

    1,179

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=IL&p_fips=17031 Other .gov state water resources: https://epa.illinois.gov/topics/drinking-water.htmlhttps://www.epa.gov/waterdata/water-quality-data Additional state water resources:https://www.isws.illinois.edu/dat