Public Water Partners

ANDOVER, IL · Henry County

ANDOVER Water System

Consumer Confidence Report status

ANDOVER 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 1 item for ANDOVER that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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)
IL0730100
System type
Community Water System
Population served
565
Service connections
250
Ownership
local government
Water source
groundwater (wells)

ANDOVER is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 565 people from groundwater.

As of August 1, 2026, its federal record holds 24 entries between 1977 and 2025, of which 1 remains open; none are health-based.

Of the 24, 23 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 volatile organic chemicals, the Total Coliform Rules, and the Consumer Confidence Rule.

Violation history

  • Consumer Confidence Report Inadequate Reporting

    —

    Consumer Confidence Rule

    July 1, 2025

    Unaddressed

  • Monitoring, Regular

    —

    Styrene

    July 1, 2004 – September 30, 2004

    Resolved

  • Monitoring, Regular

    —

    Benzene

    July 1, 2004 – September 30, 2004

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    July 1, 2004 – September 30, 2004

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    July 1, 2004 – September 30, 2004

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    July 1, 2004 – September 30, 2004

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    July 1, 2004 – September 30, 2004

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    April 1, 2004 – June 30, 2004

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    March 1, 2003 – March 31, 2003

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    July 1, 1994 – July 31, 1994

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    March 1, 1994 – March 31, 1994

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    January 1, 1994 – January 31, 1994

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    December 1, 1993 – December 31, 1993

    Archived

  • Monitoring, Regular

    —

    CHLOROBENZENE

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Styrene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    October 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    May 1, 1993 – May 31, 1993

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    March 1, 1993 – March 31, 1993

    Archived

  • Monitoring, Regular

    —

    Nitrate

    January 1, 1993 – December 31, 1993

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    August 1, 1992 – August 31, 1992

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    June 30, 1977 – June 29, 1981

    Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is ANDOVER required to publish a Consumer Confidence Report?

Yes. ANDOVER 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 ANDOVER’s next Consumer Confidence Report due?

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

Does ANDOVER have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 item for ANDOVER that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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

MIELKE, MIKE

309-949-2021

ANDOVER, IL 61233