Transient Non-Community · PWSID IL3113639

Allin Township Park

Serves 134 peopleGroundwaterOwner: Local GovernmentStanford, Illinois
1 open treatment violation.

Open for: Revised Total Coliform Rule. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 2017: 10 violations. 3 treatment lapses · 5 missed or late tests · 2 notices or reports. Most recent began 2025-07-19.

None of them is a measurement of contaminated water.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

0Over the limit
3Treatment lapse1 open
5Missed or late test
2Notice or report1 open

More violations on record than 81% of active water systems in Illinois. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005201020152017 · Missed or late test: 12019 · Missed or late test: 120202021 · Treatment lapse: 12022 · Treatment lapse: 12022 · Missed or late test: 12023 · Missed or late test: 12024 · Missed or late test: 12024 · Notice or report: 12025 · Treatment lapse: 12025 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
30% treatment lapse · 350% missed or late test · 520% notice or report · 2

Across Illinois, 81% of violations are missed or late tests and 3% are water over a limit.

What you can do

  • Total Coliform Bacteria: If your water system has coliform violations, consider boiling water or using bottled water until the system confirms the issue is resolved. Contact your water provider for their latest test results and any boil-water advisories.

Open now (2)

  1. 2025-07-19Public NoticePN Violation for NPDWR ViolationOpen
  2. 2025-05-16Revised Total Coliform RuleTTOpen

Every violation on record

  1. 2025-07-19Public NoticePN Violation for NPDWR ViolationOpen
  2. 2025-05-16Revised Total Coliform RuleTTOpen
  3. 2024-01-24Public NoticePN Violation for NPDWR ViolationBack in compliance
  4. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2023-01-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  6. 2022-07-01Revised Total Coliform RuleTTBack in compliance
  7. 2022-01-01Revised Total Coliform RuleMONBack in compliance
  8. 2021-07-01Revised Total Coliform RuleTTBack in compliance
  9. 2019-01-01NitrateMonitoring, RegularBack in compliance
  10. 2017-01-01NitrateMonitoring, RegularBack in compliance

System details

Population served134
Service connections1
Water sourceGroundwater
System typeTransient Non-Community
OwnerLocal Government
StatusActive
CityStanford
EPA ZIP on file61774

Areas served

  • Mclean County

Reading this record

Allin Township Park is a transient non-community that draws from groundwater and serves about 134 people in Stanford, Illinois. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.