City of Walled Lake

Published drinking-water records and contacts for City of Walled Lake. System MI0006875. Review sources and dates; not a real-time water assessment.

System ID: MI0006875
State or territory: MI
Published population served: 5260
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 120 — 2025-01-16 – 2025-11-19
Lead and copper monitoring summaries: 21 — 1992-01-01 – 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	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
ADONA	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
NFDHA	< 0.02 µg/L	0.02 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFBA	< 0.005 µg/L	0.005 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFBS	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFDA	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFDoA	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFEESA	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFHpA	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFHpS	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFHxA	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFHxS	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFMBA	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFMPA	< 0.004 µg/L	0.004 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFNA	< 0.004 µg/L	0.004 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFOA	< 0.004 µg/L	0.004 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFOS	< 0.004 µg/L	0.004 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFPeA	< 0.003 µg/L	0.003 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFPeS	< 0.004 µg/L	0.004 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFTA	< 0.008 µg/L	0.008 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFTrDA	< 0.007 µg/L	0.007 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
PFUnA	< 0.002 µg/L	0.002 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01
lithium	< 9 µg/L	9 µg/L	2025-11-19	GLWA interconnection (Lake Huron WTP) / WA01

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	Monitoring period	Source quarter
Lead (PB90)	2025-01-01 – 2025-12-31	2026Q3
Lead (PB90)	2024-01-01 – 2024-12-31	2026Q3
Lead (PB90)	2023-01-01 – 2023-12-31	2026Q3
Lead (PB90)	2022-01-01 – 2022-12-31	2026Q3
Lead (PB90)	2021-01-01 – 2021-12-31	2026Q3
Lead (PB90)	2020-01-01 – 2020-12-31	2026Q3
Lead (PB90)	2019-01-01 – 2019-12-31	2026Q3
Lead (PB90)	2015-01-01 – 2017-12-31	2026Q3

Published compliance history

1 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
Consumer Confidence Rule / Consumer Confidence Report Complete Failure to Report	2023-07-01 – —	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)

Ploof, Amy: 248-452-2271

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