Stoughton Waterworks

Published drinking-water records and contacts for Stoughton Waterworks. System WI1130078. Review sources and dates; not a real-time water assessment.

System ID: WI1130078
State or territory: WI
Published population served: 13078
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 240 — 2024-11-18 – 2025-05-20
Lead and copper monitoring summaries: 21 — 1992-07-01 – 2023-06-30
Wisconsin DNR public-system PFAS records: 216 — 2022-06-15 – 2026-08-10

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	2025-05-20	Well 7 (KW617) / EP007
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 5 (HR527) / EP005
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-05-20	Well 5 (HR527) / EP005
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-05-20	Well 4 (BF551) / EP004
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2025-05-20	Well 5 (HR527) / EP005
ADONA	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 7 (KW617) / EP007
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2025-05-20	Well 5 (HR527) / EP005
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2025-05-20	Well 6 (BF566) / EP006
NFDHA	< 0.02 µg/L	0.02 µg/L	2025-05-20	Well 6 (BF566) / EP006
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2025-05-20	Well 6 (BF566) / EP006
PFBA	< 0.005 µg/L	0.005 µg/L	2025-05-20	Well 6 (BF566) / EP006
PFBS	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 6 (BF566) / EP006
PFDA	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 6 (BF566) / EP006
PFDoA	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 5 (HR527) / EP005
PFEESA	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 7 (KW617) / EP007
PFHpA	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 7 (KW617) / EP007
PFHpS	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 6 (BF566) / EP006
PFHxA	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 7 (KW617) / EP007
PFHxS	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 5 (HR527) / EP005
PFMBA	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 7 (KW617) / EP007
PFMPA	< 0.004 µg/L	0.004 µg/L	2025-05-20	Well 6 (BF566) / EP006
PFNA	< 0.004 µg/L	0.004 µg/L	2025-05-20	Well 5 (HR527) / EP005
PFOA	< 0.004 µg/L	0.004 µg/L	2025-05-20	Well 7 (KW617) / EP007
PFOS	< 0.004 µg/L	0.004 µg/L	2025-05-20	Well 5 (HR527) / EP005
PFPeA	< 0.003 µg/L	0.003 µg/L	2025-05-20	Well 6 (BF566) / EP006
PFPeS	< 0.004 µg/L	0.004 µg/L	2025-05-20	Well 5 (HR527) / EP005
PFTA	< 0.008 µg/L	0.008 µg/L	2025-05-20	Well 5 (HR527) / EP005
PFTrDA	< 0.007 µg/L	0.007 µg/L	2025-05-20	Well 5 (HR527) / EP005
PFUnA	< 0.002 µg/L	0.002 µg/L	2025-05-20	Well 4 (BF551) / EP004
lithium	< 9 µg/L	9 µg/L	2025-05-20	Well 4 (BF551) / EP004

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)	0.0042 mg/L	2023-01-01 – 2023-06-30	2026Q3
Lead (PB90)	0.0028 mg/L	2022-07-01 – 2022-12-31	2026Q3
Lead (PB90)	0.018 mg/L	2019-06-01 – 2019-09-30	2026Q3
Lead (PB90)	0.011 mg/L	2018-06-01 – 2018-09-30	2026Q3
Lead (PB90)	0.015 mg/L	2017-06-01 – 2017-09-30	2026Q3
Lead (PB90)	0.012 mg/L	2016-06-01 – 2016-09-30	2026Q3
Lead (PB90)	0.01 mg/L	2015-07-01 – 2015-12-31	2026Q3
Lead (PB90)	0.015 mg/L	2015-01-01 – 2015-06-30	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
PFDOA	< 0.65 ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records
PFHPA	< 0.56 ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records
PFHXA	0.68 Between LOD and LOQ ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records
PFHXS	2.6 ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records
PFNA	< 0.54 ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records
PFOA	0.66 Between LOD and LOQ ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records
PFOS	1.3 Between LOD and LOQ ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records
PFTA	< 0.56 ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records
PFTrDA	< 0.56 ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records
PFUNA	< 0.54 ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records
11CL-PF3OUDS	< 0.32 ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records
9CL-PF3ONS	< 0.49 ng/L	2026-08-10	Entry Point / Wisconsin DNR public-system PFAS records

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

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
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2020-10-01 – 2020-10-31	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
Wisconsin DNR public-system PFAS records — last successful check: 2026-10-10

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