River Grove

Published drinking-water records and contacts for River Grove. System IL0312640. Review sources and dates; not a real-time water assessment.

System ID: IL0312640
State or territory: IL
Published population served: 10282
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 120 — 2024-03-13 – 2024-12-10
Lead and copper monitoring summaries: 19 — 1992-04-01 – 2025-12-31

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	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
ADONA	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
NFDHA	< 0.02 µg/L	0.02 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFBA	< 0.005 µg/L	0.005 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFBS	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFDA	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFDoA	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFEESA	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFHpA	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFHpS	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFHxA	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFHxS	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFMBA	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFMPA	< 0.004 µg/L	0.004 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFNA	< 0.004 µg/L	0.004 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFOA	< 0.004 µg/L	0.004 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFOS	< 0.004 µg/L	0.004 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFPeA	< 0.003 µg/L	0.003 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFPeS	< 0.004 µg/L	0.004 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFTA	< 0.008 µg/L	0.008 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFTrDA	< 0.007 µg/L	0.007 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
PFUnA	< 0.002 µg/L	0.002 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01
lithium	< 9 µg/L	9 µg/L	2024-12-10	Chicago interconnection (Chicago-Jardine WTP) / CC01

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)	0.00609 mg/L	2025-07-01 – 2025-12-31	2026Q3
Lead (PB90)	0.00638 mg/L	2025-01-01 – 2025-06-30	2026Q3
Lead (PB90)	0.00981 mg/L	2021-01-01 – 2023-12-31	2026Q3
Lead (PB90)	0.00686 mg/L	2018-01-01 – 2020-12-31	2026Q3
Lead (PB90)	0.00946 mg/L	2015-01-01 – 2017-12-31	2026Q3
Lead (PB90)	0.00763 mg/L	2012-01-01 – 2014-12-31	2026Q3
Lead (PB90)	0.00625 mg/L	2011-01-01 – 2013-12-31	2026Q3
Lead (PB90)	0.00625 mg/L	2009-01-01 – 2011-12-31	2026Q3

Published compliance history

3 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
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2026-04-01 – 2026-06-30	Archived	No	2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2025-07-01 – 2025-09-30	Resolved	No	2026Q3
Lead and Copper Rule / Lead Consumer Notice	2020-12-30 – —	Resolved	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)

Pazdzioch, William: 708-452-7055

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