Ionia

Published drinking-water records and contacts for Ionia. System MI0003370. Review sources and dates; not a real-time water assessment.

System ID: MI0003370
State or territory: MI
Published population served: 11708
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 240 — 2024-01-29 – 2024-11-18
Lead and copper monitoring summaries: 15 — 1992-07-01 – 2026-12-31
Michigan EGLE PFAS compliance sampling: 175 — 2021-01-06 – 2025-03-02

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	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
ADONA	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2024-07-24	Wells #5 & #11A Treatment / SS001
NFDHA	< 0.02 µg/L	0.02 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2024-07-24	Wells #5 & #11A Treatment / SS001
PFBA	< 0.005 µg/L	0.005 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFBS	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFDA	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFDoA	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFEESA	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFHpA	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFHpS	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFHxA	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFHxS	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFMBA	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFMPA	< 0.004 µg/L	0.004 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFNA	< 0.004 µg/L	0.004 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFOA	< 0.004 µg/L	0.004 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFOS	< 0.004 µg/L	0.004 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFPeA	< 0.003 µg/L	0.003 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFPeS	< 0.004 µg/L	0.004 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
PFTA	< 0.008 µg/L	0.008 µg/L	2024-07-24	Wells #5 & #11A Treatment / SS001
PFTrDA	< 0.007 µg/L	0.007 µg/L	2024-07-24	Wells #5 & #11A Treatment / SS001
PFUnA	< 0.002 µg/L	0.002 µg/L	2024-11-18	Wells #14A, #15 & #16 Treatment / SS004
lithium	< 9 µg/L	9 µg/L	2024-07-24	Wells #5 & #11A Treatment / SS001

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)	0.00512 mg/L	2024-01-01 – 2026-12-31	2026Q3
Lead (PB90)	0.00321 mg/L	2021-01-01 – 2023-12-31	2026Q3
Lead (PB90)	0.00378 mg/L	2018-01-01 – 2020-12-31	2026Q3
Lead (PB90)	0.00351 mg/L	2015-01-01 – 2017-12-31	2026Q3
Lead (PB90)	0.01 mg/L	2012-01-01 – 2014-12-31	2026Q3
Lead (PB90)	0.006 mg/L	2009-01-01 – 2011-12-31	2026Q3
Lead (PB90)	0.011 mg/L	2006-01-01 – 2008-12-31	2026Q3
Lead (PB90)	0.005 mg/L	2003-01-01 – 2005-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
HFPO-DA	< 2 ppt	2025-03-02	SS004 / Michigan EGLE PFAS compliance sampling
PFOA	< 2 ppt	2025-03-02	SS003 / Michigan EGLE PFAS compliance sampling
PFOA	< 2 ppt	2025-03-02	SS004 / Michigan EGLE PFAS compliance sampling
HFPO-DA	< 2 ppt	2025-03-02	SS003 / Michigan EGLE PFAS compliance sampling
PFOA	< 2 ppt	2025-03-02	SS002 / Michigan EGLE PFAS compliance sampling
PFBS	< 2 ppt	2025-03-02	SS001 / Michigan EGLE PFAS compliance sampling
PFOS	< 2 ppt	2025-03-02	SS001 / Michigan EGLE PFAS compliance sampling
PFNA	< 2 ppt	2025-03-02	SS001 / Michigan EGLE PFAS compliance sampling
PFNA	< 2 ppt	2025-03-02	SS004 / Michigan EGLE PFAS compliance sampling
PFHxA	< 2 ppt	2025-03-02	SS003 / Michigan EGLE PFAS compliance sampling
PFBS	< 2 ppt	2025-03-02	SS004 / Michigan EGLE PFAS compliance sampling
PFOA	< 2 ppt	2025-03-02	SS001 / Michigan EGLE PFAS compliance sampling

State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.

Download state records with source notes (CSV)

Published compliance history

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

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
Michigan EGLE PFAS compliance sampling — last successful check: 2026-10-14

Administrative contact (EPA filing)

Garland, Precia: 616-527-4170

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