Princeton

Published drinking-water records and contacts for Princeton. System IL0110850. Review sources and dates; not a real-time water assessment.

System ID: IL0110850
State or territory: IL
Published population served: 7832
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 60 — 2025-05-05 – 2025-11-03
Lead and copper monitoring summaries: 34 — 1992-04-01 – 2026-06-30

Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.

Published testing results

Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.

“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example

EPA UCMR 5 — most recent imported sample per substance
Substance	Published result	Reporting limit	Sample date	Sampling location
11Cl-PF3OUdS	< 0.005 µg/L	0.005 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
ADONA	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
NFDHA	< 0.02 µg/L	0.02 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFBA	< 0.005 µg/L	0.005 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFBS	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFDA	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFDoA	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFEESA	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFHpA	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFHpS	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFHxA	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFHxS	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFMBA	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFMPA	< 0.004 µg/L	0.004 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFNA	< 0.004 µg/L	0.004 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFOA	< 0.004 µg/L	0.004 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFOS	< 0.004 µg/L	0.004 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFPeA	< 0.003 µg/L	0.003 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFPeS	< 0.004 µg/L	0.004 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFTA	< 0.008 µg/L	0.008 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFTrDA	< 0.007 µg/L	0.007 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
PFUnA	< 0.002 µg/L	0.002 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02
lithium	< 9 µg/L	9 µg/L	2025-11-03	Ace Rd Lime Soft TP (Wells 7-10) / TP02

Download all EPA UCMR 5 records (CSV)

Lead and copper: 90th-percentile summaries

These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile

Eight most recent imported monitoring summaries
Substance	Published 90th percentile	Monitoring period	Source quarter
Lead (PB90)	0.021 mg/L	2026-01-01 – 2026-06-30	2026Q3
Lead (PB90)	0 mg/L	2025-01-01 – 2025-12-31	2026Q3
Lead (PB90)	0.0031 mg/L	2025-01-01 – 2025-12-31	2026Q3
Lead (PB90)	0.027 mg/L	2025-07-01 – 2025-12-31	2026Q3
Lead (PB90)	0.044 mg/L	2025-01-01 – 2025-06-30	2026Q3
Lead (PB90)	0.043 mg/L	2024-07-01 – 2024-12-31	2026Q3
Lead (PB90)	0.0085 mg/L	2024-01-01 – 2024-06-30	2026Q3
Lead (PB90)	0.0098 mg/L	2023-07-01 – 2023-12-31	2026Q3

Published compliance history

4 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.

Twenty most recent imported compliance records
Rule / record	Period	Recorded status	Health-based (EPA classification)	Source quarter
Lead and Copper Rule Revisions / Notification, Known or Potential LSL	2025-07-02 – —	Resolved	No	2026Q3
Lead and Copper Rule / Public Education	2019-12-01 – —	Resolved	Yes	2026Q3
Stage 1 Disinfectants and Disinfection Byproducts Rule / Non-Acute MRDL	2019-10-01 – 2019-12-31	Resolved	Yes	2026Q3
Radionuclides and Revised Rad Rule / Monitoring, Regular	1977-06-30 – 1981-06-29	Archived	No	2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17

Administrative contact (EPA filing)

Eggers Jr, Michael J.: 815-872-0811

An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.

Official state resources · How to read these records