Public Water Partners

ASSUMPTION, IL · Christian County

ASSUMPTION Water System

Consumer Confidence Report status

ASSUMPTION 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 ASSUMPTION 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)
IL0210050
System type
Community Water System
Population served
1,315
Service connections
622
Ownership
local government
Water source
groundwater (wells)

ASSUMPTION is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 1,315 people from groundwater.

As of August 1, 2026, its federal record holds 6 entries between 1977 and 2026, of which 1 remains open; none are health-based.

Of the 6, 4 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 the Stage 2 Disinfectants and Disinfection Byproducts Rule, the Public Notice Rule and Revised PN Rule, and the Lead and Copper Rule.

Violation history

  • Monitoring and Reporting (DBP)

    —

    TTHM

    January 1, 2026 – March 31, 2026

    Archived

  • Public Notification Violation for NPDWR Violation

    —

    Public Notice

    October 13, 2025

    Unaddressed

  • LSL Reporting

    —

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024 – December 4, 2025

    Resolved

  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2024 – September 30, 2024

    Resolved

  • Failure Submit IDSE/Subpart V Plan Rpt

    —

    TTHM

    June 21, 2023 – January 24, 2025

    Resolved

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    June 30, 1977 – June 29, 1981

    Archived

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

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is ASSUMPTION required to publish a Consumer Confidence Report?

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

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

Does ASSUMPTION have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 item for ASSUMPTION 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

DUNCAN, JOHN A.

217-820-0914

ASSUMPTION, IL 62510