Public Water Partners

EVANSTON, IL · Cook County

EVANSTON Water System

Consumer Confidence Report status

EVANSTON must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for EVANSTON.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.

System facts

System ID (PWSID)
IL0310810
System type
Community Water System
Population served
74,486
Service connections
14,657
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

EVANSTON is among the 17 largest community water systems in Illinois, serving 74,486 people from surface water.

As of August 1, 2026, its federal record holds 32 entries between 1994 and 1996, all of which EPA lists as closed. Nothing has been added since 1996.

All 32 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals and the Total Coliform Rules.

Violation history

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    August 1, 1996 – August 31, 1996

    Archived

  • Monitoring, Regular

    —

    Methoxychlor

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    LASSO

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Total Polychlorinated Biphenyls (PCB)

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Endrin

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Diquat

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Endothall

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Simazine

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Picloram

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Aldicarb sulfoxide

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Aldicarb sulfone

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Aldicarb

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    April 1, 1994 – June 30, 1994

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    April 1, 1994 – June 30, 1994

    Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is EVANSTON required to publish a Consumer Confidence Report?

Yes. EVANSTON is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is EVANSTON’s next Consumer Confidence Report due?

EVANSTON’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does EVANSTON have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for EVANSTON.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

STOWE, LUKE

847-448-8177

EVANSTON, IL 60201