DELAVAN, IL · Tazewell County
DELAVAN Water System
Consumer Confidence Report status
DELAVAN 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 DELAVAN.
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)
- IL1790150
- System type
- Community Water System
- Population served
- 1,743
- Service connections
- 764
- Ownership
- local government
- Water source
- groundwater (wells)
DELAVAN is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 1,743 people from groundwater.
As of August 1, 2026, its federal record holds 6 entries between 1977 and 2024, all of which EPA lists as closed.
All 6 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 Total Coliform Rules, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and the Lead and Copper Rule.
Violation history
Monitoring and Reporting (DBP)
—TTHM
July 1, 2024 – September 30, 2024
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
July 1, 2022 – November 2, 2022
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 2010 – September 30, 2010
ResolvedMonitoring and Reporting (DBP)
—Chloramine
July 1, 2010 – September 30, 2010
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 1998 – August 31, 1998
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2024 – September 30, 2024 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| July 1, 2022 – November 2, 2022 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| September 1, 2010 – September 30, 2010 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 2010 – September 30, 2010 | Monitoring and Reporting (DBP) | Chloramine | — | Resolved |
| August 1, 1998 – August 31, 1998 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| June 30, 1977 – June 29, 1981 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- July 28, 2025State Public Notification received1 linked violation
- November 20, 2024State Compliance achieved1 linked violation
- October 11, 2024State Public Notification requested1 linked violation
- October 11, 2024State Violation/Reminder Notice1 linked violation
- October 4, 2024State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- May 25, 2023State Public Notification received1 linked violation
- November 2, 2022State Compliance achieved1 linked violation
- July 13, 2022State Violation/Reminder Notice1 linked violation
- July 13, 2022State Public Notification requested1 linked violation
- November 4, 2010State Public Notification received1 linked violation
- October 26, 2010State Compliance achieved1 linked violation
- October 26, 2010State Compliance achieved1 linked violation
- October 19, 2010State Public Notification requested1 linked violation
- October 19, 2010State Violation/Reminder Notice1 linked violation
- October 19, 2010State Public Notification requested1 linked violation
- October 19, 2010State Violation/Reminder Notice1 linked violation
- October 15, 1998State Violation/Reminder Notice1 linked violation
- October 15, 1998State Public Notification requested1 linked violation
- April 19, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- April 19, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- March 13, 1990State Public Notification received1 linked violation
Common questions
Is DELAVAN required to publish a Consumer Confidence Report?
- Yes. DELAVAN 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 DELAVAN’s next Consumer Confidence Report due?
- DELAVAN’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DELAVAN have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for DELAVAN.
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
SKINNER, ELIZABETH
309-244-7146
DELAVAN, IL 61734