Shullsburg Waterworks

Published drinking-water records and contacts for Shullsburg Waterworks. System WI1330076. Review sources and dates; not a real-time water assessment.

System ID: WI1330076
State or territory: WI
Published population served: 1222
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 120 — 2024-03-20 – 2024-09-24
Lead and copper monitoring summaries: 14 — 1993-07-01 – 2023-09-30
Wisconsin DNR public-system PFAS records: 36 — 2023-06-07 – 2023-06-07

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	2024-09-24	Entry Point W-3 / EP001
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-4 / EP002
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-09-24	Entry Point W-4 / EP002
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-09-24	Entry Point W-4 / EP002
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2024-09-24	Entry Point W-3 / EP001
ADONA	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-4 / EP002
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2024-09-24	Entry Point W-3 / EP001
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2024-09-24	Entry Point W-4 / EP002
NFDHA	< 0.02 µg/L	0.02 µg/L	2024-09-24	Entry Point W-4 / EP002
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2024-09-24	Entry Point W-3 / EP001
PFBA	< 0.005 µg/L	0.005 µg/L	2024-09-24	Entry Point W-4 / EP002
PFBS	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-4 / EP002
PFDA	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-4 / EP002
PFDoA	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-3 / EP001
PFEESA	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-4 / EP002
PFHpA	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-4 / EP002
PFHpS	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-3 / EP001
PFHxA	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-3 / EP001
PFHxS	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-4 / EP002
PFMBA	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-3 / EP001
PFMPA	< 0.004 µg/L	0.004 µg/L	2024-09-24	Entry Point W-3 / EP001
PFNA	< 0.004 µg/L	0.004 µg/L	2024-09-24	Entry Point W-3 / EP001
PFOA	< 0.004 µg/L	0.004 µg/L	2024-09-24	Entry Point W-4 / EP002
PFOS	< 0.004 µg/L	0.004 µg/L	2024-09-24	Entry Point W-3 / EP001
PFPeA	< 0.003 µg/L	0.003 µg/L	2024-09-24	Entry Point W-3 / EP001
PFPeS	< 0.004 µg/L	0.004 µg/L	2024-09-24	Entry Point W-3 / EP001
PFTA	< 0.008 µg/L	0.008 µg/L	2024-09-24	Entry Point W-4 / EP002
PFTrDA	< 0.007 µg/L	0.007 µg/L	2024-09-24	Entry Point W-3 / EP001
PFUnA	< 0.002 µg/L	0.002 µg/L	2024-09-24	Entry Point W-3 / EP001
lithium	< 9 µg/L	9 µg/L	2024-09-24	Entry Point W-3 / EP001

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)	0.00612 mg/L	2023-06-01 – 2023-09-30	2026Q3
Lead (PB90)	0.00136 mg/L	2020-07-01 – 2020-10-31	2026Q3
Lead (PB90)	0.00228 mg/L	2018-06-01 – 2018-09-30	2026Q3
Lead (PB90)	0.00342 mg/L	2015-06-01 – 2015-09-30	2026Q3
Lead (PB90)	0.00379 mg/L	2012-06-01 – 2012-09-30	2026Q3
Lead (PB90)	0.00445 mg/L	2009-01-01 – 2009-12-31	2026Q3
Lead (PB90)	0.0049 mg/L	2006-01-01 – 2006-12-31	2026Q3
Lead (PB90)	0.0032 mg/L	2003-01-01 – 2003-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
PFBS	< 0.283 ng/L	2023-06-07	Entry Point / Wisconsin DNR public-system PFAS records
PFHXA	< 0.403 ng/L	2023-06-07	Entry Point / Wisconsin DNR public-system PFAS records
HFPO-DA	< 0.416 ng/L	2023-06-07	Entry Point / Wisconsin DNR public-system PFAS records
PFHPA	< 0.364 ng/L	2023-06-07	Entry Point / Wisconsin DNR public-system PFAS records
PFHXS	< 0.260 ng/L	2023-06-07	Entry Point / Wisconsin DNR public-system PFAS records
ADONA	< 0.388 ng/L	2023-06-07	Entry Point / Wisconsin DNR public-system PFAS records
PFNA	< 0.381 ng/L	2023-06-07	Entry Point / Wisconsin DNR public-system PFAS records
PFOS	Below a limit; numeric threshold unavailable ng/L	2023-06-07	Entry Point / Wisconsin DNR public-system PFAS records
9CL-PF3ONS	< 0.287 ng/L	2023-06-07	Entry Point / Wisconsin DNR public-system PFAS records
PFDA	< 0.410 ng/L	2023-06-07	Entry Point / Wisconsin DNR public-system PFAS records
NMEFOSAA	< 0.291 ng/L	2023-06-07	Entry Point / Wisconsin DNR public-system PFAS records
NETFOSAA	< 0.280 ng/L	2023-06-07	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

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
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