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Watertown Waterworks

Published drinking-water records and contacts for Watertown Waterworks. System WI1280044. Review sources and dates; not a real-time water assessment.

System ID
WI1280044
State or territory
WI
Published population served
23945
System type (source code)
CWS

Published records and dates

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
SubstancePublished resultReporting limitSample dateSampling location
11Cl-PF3OUdS< 0.005 µg/L0.005 µg/L2023-09-26West TP / 7
4:2 FTS< 0.003 µg/L0.003 µg/L2023-09-26Central TP / 200
6:2 FTS< 0.005 µg/L0.005 µg/L2023-09-26West TP / 7
8:2 FTS< 0.005 µg/L0.005 µg/L2023-09-26Northeast TP / 8
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2023-09-26Northeast TP / 8
ADONA< 0.003 µg/L0.003 µg/L2023-09-26West TP / 7
HFPO-DA< 0.005 µg/L0.005 µg/L2023-09-26Central TP / 200
NEtFOSAA< 0.005 µg/L0.005 µg/L2023-09-26Northeast TP / 8
NFDHA< 0.02 µg/L0.02 µg/L2023-09-26Northeast TP / 8
NMeFOSAA< 0.006 µg/L0.006 µg/L2023-09-26Northeast TP / 8
PFBA< 0.005 µg/L0.005 µg/L2023-09-26Central TP / 200
PFBS< 0.003 µg/L0.003 µg/L2023-09-26Central TP / 200
PFDA< 0.003 µg/L0.003 µg/L2023-09-26West TP / 7
PFDoA< 0.003 µg/L0.003 µg/L2023-09-26Northeast TP / 8
PFEESA< 0.003 µg/L0.003 µg/L2023-09-26West TP / 7
PFHpA< 0.003 µg/L0.003 µg/L2023-09-26Northeast TP / 8
PFHpS< 0.003 µg/L0.003 µg/L2023-09-26West TP / 7
PFHxA< 0.003 µg/L0.003 µg/L2023-09-26Central TP / 200
PFHxS< 0.003 µg/L0.003 µg/L2023-09-26Central TP / 200
PFMBA< 0.003 µg/L0.003 µg/L2023-09-26Central TP / 200
PFMPA< 0.004 µg/L0.004 µg/L2023-09-26Northeast TP / 8
PFNA< 0.004 µg/L0.004 µg/L2023-09-26Central TP / 200
PFOA< 0.004 µg/L0.004 µg/L2023-09-26Central TP / 200
PFOS< 0.004 µg/L0.004 µg/L2023-09-26Northeast TP / 8
PFPeA< 0.003 µg/L0.003 µg/L2023-09-26Central TP / 200
PFPeS< 0.004 µg/L0.004 µg/L2023-09-26Central TP / 200
PFTA< 0.008 µg/L0.008 µg/L2023-09-26Northeast TP / 8
PFTrDA< 0.007 µg/L0.007 µg/L2023-09-26Northeast TP / 8
PFUnA< 0.002 µg/L0.002 µg/L2023-09-26Central TP / 200
lithium< 9 µg/L9 µg/L2023-09-26Northeast TP / 8

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
SubstancePublished 90th percentileMonitoring periodSource quarter
Lead (PB90) 0.015 mg/L2023-06-01 – 2023-09-302026Q3
Lead (PB90) 0.014 mg/L2022-07-01 – 2022-12-312026Q3
Lead (PB90) 0.013 mg/L2022-01-01 – 2022-06-302026Q3
Lead (PB90) 0.016 mg/L2021-07-01 – 2021-12-312026Q3
Lead (PB90) 0.014 mg/L2021-01-01 – 2021-06-302026Q3
Lead (PB90) 0.016 mg/L2020-07-01 – 2020-10-312026Q3
Lead (PB90) 0.014 mg/L2017-06-01 – 2017-09-302026Q3
Lead (PB90) 0.014 mg/L2014-06-01 – 2014-09-302026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
PFDOA< 0.62 ng/L2026-09-10Entry Point / Wisconsin DNR public-system PFAS records
PFHPA< 0.54 ng/L2026-09-10Entry Point / Wisconsin DNR public-system PFAS records
PFHXA< 0.56 ng/L2026-09-10Entry Point / Wisconsin DNR public-system PFAS records
PFHXS< 0.63 ng/L2026-09-10Entry Point / Wisconsin DNR public-system PFAS records
PFNA< 0.52 ng/L2026-09-10Entry Point / Wisconsin DNR public-system PFAS records
PFOA< 0.47 ng/L2026-09-10Entry Point / Wisconsin DNR public-system PFAS records
PFOS< 0.48 ng/L2026-09-10Entry Point / Wisconsin DNR public-system PFAS records
PFTA< 0.54 ng/L2026-09-10Entry Point / Wisconsin DNR public-system PFAS records
PFTrDA< 0.54 ng/L2026-09-10Entry Point / Wisconsin DNR public-system PFAS records
PFUNA< 0.52 ng/L2026-09-10Entry Point / Wisconsin DNR public-system PFAS records
11CL-PF3OUDS< 0.31 ng/L2026-09-10Entry Point / Wisconsin DNR public-system PFAS records
9CL-PF3ONS< 0.47 ng/L2026-09-10Entry 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

2 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 / recordPeriodRecorded statusHealth-based (EPA classification)Source quarter
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)2024-01-01 – 2024-12-31ResolvedNo2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)2024-01-01 – 2024-12-31ResolvedNo2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

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