Rockford

Published drinking-water records and contacts for Rockford. System IL2010300. Review sources and dates; not a real-time water assessment.

System ID: IL2010300
State or territory: IL
Published population served: 147051
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 1320 — 2023-10-09 – 2025-10-15
Lead and copper monitoring summaries: 21 — 1992-01-01 – 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	2025-10-15	TP 35 (Well 34) / TP35
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 12 (Well 13) / TP12
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-10-15	TP 12 (Well 13) / TP12
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-10-15	TP 35 (Well 34) / TP35
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2025-10-15	TP 12 (Well 13) / TP12
ADONA	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 12 (Well 13) / TP12
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2025-10-15	TP 35 (Well 34) / TP35
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2025-10-15	TP 35 (Well 34) / TP35
NFDHA	< 0.02 µg/L	0.02 µg/L	2025-10-15	TP 35 (Well 34) / TP35
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2025-10-15	TP 12 (Well 13) / TP12
PFBA	< 0.005 µg/L	0.005 µg/L	2025-10-15	TP 35 (Well 34) / TP35
PFBS	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 35 (Well 34) / TP35
PFDA	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 35 (Well 34) / TP35
PFDoA	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 35 (Well 34) / TP35
PFEESA	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 35 (Well 34) / TP35
PFHpA	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 12 (Well 13) / TP12
PFHpS	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 12 (Well 13) / TP12
PFHxA	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 35 (Well 34) / TP35
PFHxS	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 12 (Well 13) / TP12
PFMBA	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 35 (Well 34) / TP35
PFMPA	< 0.004 µg/L	0.004 µg/L	2025-10-15	TP 12 (Well 13) / TP12
PFNA	< 0.004 µg/L	0.004 µg/L	2025-10-15	TP 35 (Well 34) / TP35
PFOA	< 0.004 µg/L	0.004 µg/L	2025-10-15	TP 35 (Well 34) / TP35
PFOS	< 0.004 µg/L	0.004 µg/L	2025-10-15	TP 35 (Well 34) / TP35
PFPeA	< 0.003 µg/L	0.003 µg/L	2025-10-15	TP 35 (Well 34) / TP35
PFPeS	< 0.004 µg/L	0.004 µg/L	2025-10-15	TP 12 (Well 13) / TP12
PFTA	< 0.008 µg/L	0.008 µg/L	2025-10-15	TP 12 (Well 13) / TP12
PFTrDA	< 0.007 µg/L	0.007 µg/L	2025-10-15	TP 12 (Well 13) / TP12
PFUnA	< 0.002 µg/L	0.002 µg/L	2025-10-15	TP 35 (Well 34) / TP35
lithium	< 9 µg/L	9 µg/L	2025-10-15	TP 12 (Well 13) / TP12

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)	0.01 mg/L	2026-01-01 – 2026-06-30	2026Q3
Lead (PB90)	0.0084 mg/L	2025-07-01 – 2025-12-31	2026Q3
Lead (PB90)	0.014 mg/L	2025-01-01 – 2025-06-30	2026Q3
Lead (PB90)	0.006 mg/L	2024-01-01 – 2024-12-31	2026Q3
Lead (PB90)	0.0053 mg/L	2023-01-01 – 2023-12-31	2026Q3
Lead (PB90)	0.013 mg/L	2020-01-01 – 2022-12-31	2026Q3
Lead (PB90)	0.0041 mg/L	2017-01-01 – 2019-12-31	2026Q3
Lead (PB90)	0.004 mg/L	2014-01-01 – 2016-12-31	2026Q3

Published compliance history

13 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)	2024-10-01 – 2024-12-31	Resolved	No	2026Q3
Volatile Organic Chemicals / Monitoring, Regular	2023-01-01 – 2023-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2023-01-01 – 2025-12-31	Archived	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2023-01-01 – 2025-12-31	Archived	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2023-01-01 – 2025-12-31	Archived	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2023-01-01 – 2025-12-31	Archived	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2023-01-01 – 2025-12-31	Archived	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2023-01-01 – 2025-12-31	Archived	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2023-01-01 – 2025-12-31	Archived	No	2026Q3
Nitrate Rule / Monitoring, Regular	2022-01-01 – 2022-12-31	Resolved	No	2026Q3
Nitrate Rule / Monitoring, Regular	2020-01-01 – 2022-12-31	Resolved	No	2026Q3
Nitrate Rule / Monitoring, Regular	2020-01-01 – 2022-12-31	Resolved	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)

Rott, Jamie: 779-348-7654

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