Libertyville

Published drinking-water records and contacts for Libertyville. System IL0970900. Review sources and dates; not a real-time water assessment.

System ID: IL0970900
State or territory: IL
Published population served: 20500
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 120 — 2023-05-31 – 2024-02-21
Lead and copper monitoring summaries: 23 — 1992-04-01 – 2026-12-31

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	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
ADONA	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
NFDHA	< 0.02 µg/L	0.02 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFBA	< 0.005 µg/L	0.005 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFBS	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFDA	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFDoA	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFEESA	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFHpA	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFHpS	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFHxA	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFHxS	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFMBA	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFMPA	< 0.004 µg/L	0.004 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFNA	< 0.004 µg/L	0.004 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFOA	< 0.004 µg/L	0.004 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFOS	< 0.004 µg/L	0.004 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFPeA	< 0.003 µg/L	0.003 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFPeS	< 0.004 µg/L	0.004 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFTA	< 0.008 µg/L	0.008 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFTrDA	< 0.007 µg/L	0.007 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
PFUnA	< 0.002 µg/L	0.002 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08
lithium	< 9 µg/L	9 µg/L	2024-02-21	Central Lake Co JAWA intertie (Lake Michigan) / CC08

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)	0.00561 mg/L	2026-01-01 – 2026-12-31	2026Q3
Lead (PB90)	0 mg/L	2025-01-01 – 2025-12-31	2026Q3
Lead (PB90)	0.0084 mg/L	2025-07-01 – 2025-12-31	2026Q3
Lead (PB90)	0.00291 mg/L	2025-01-01 – 2025-12-31	2026Q3
Lead (PB90)	0.00676 mg/L	2025-01-01 – 2025-06-30	2026Q3
Lead (PB90)	0.00606 mg/L	2021-01-01 – 2023-12-31	2026Q3
Lead (PB90)	0.00301 mg/L	2018-01-01 – 2020-12-31	2026Q3
Lead (PB90)	0.00321 mg/L	2015-01-01 – 2017-12-31	2026Q3

Published compliance history

2 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
Synthetic Organic Chemicals / Monitoring, Regular	2023-01-01 – 2025-12-31	Archived	No	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)

Kendzior, Paul: 847-918-2016

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