An independent public resourceEnglish Español
PublicWater Watch

Prairie Island

Published drinking-water records and contacts for Prairie Island. System 055294502. Review sources and dates; not a real-time water assessment.

System ID
055294502
State or territory
MN
Published population served
6699
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/L2024-01-24PRAIRIE ISLAND / EP01SP1
4:2 FTS< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
6:2 FTS< 0.005 µg/L0.005 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
8:2 FTS< 0.005 µg/L0.005 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
ADONA< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
HFPO-DA< 0.005 µg/L0.005 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
NEtFOSAA< 0.005 µg/L0.005 µg/L2023-11-08PRAIRIE ISLAND / EP01SP1
NFDHA< 0.02 µg/L0.02 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
NMeFOSAA< 0.006 µg/L0.006 µg/L2023-11-08PRAIRIE ISLAND / EP01SP1
PFBA< 0.005 µg/L0.005 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFBS< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFDA< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFDoA< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFEESA< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFHpA< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFHpS< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFHxA< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFHxS< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFMBA< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFMPA< 0.004 µg/L0.004 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFNA< 0.004 µg/L0.004 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFOA< 0.004 µg/L0.004 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFOS< 0.004 µg/L0.004 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFPeA< 0.003 µg/L0.003 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFPeS< 0.004 µg/L0.004 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
PFTA< 0.008 µg/L0.008 µg/L2023-11-08PRAIRIE ISLAND / EP01SP1
PFTrDA< 0.007 µg/L0.007 µg/L2023-11-08PRAIRIE ISLAND / EP01SP1
PFUnA< 0.002 µg/L0.002 µg/L2024-01-24PRAIRIE ISLAND / EP01SP1
lithium18 µg/L9 µg/L2023-11-08PRAIRIE ISLAND / EP01SP1

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) 0.0043 mg/L2023-01-01 – 2025-12-312026Q3
Lead (PB90) 0.003 mg/L2020-01-01 – 2022-12-312026Q3
Lead (PB90) 0.0037 mg/L2017-01-01 – 2019-12-312026Q3
Lead (PB90) 0.005 mg/L2014-01-01 – 2016-12-312026Q3
Lead (PB90) 0.00053 mg/L2009-01-01 – 2011-12-312026Q3
Lead (PB90) 0.0013 mg/L2006-01-01 – 2008-12-312026Q3
Lead (PB90) 0.0013 mg/L2003-01-01 – 2005-12-312026Q3
Lead (PB90) 0.012 mg/L2000-01-01 – 2002-12-312026Q3

Published compliance history

29 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
Lead and Copper Rule Revisions / LSL Reporting2024-10-17 – —ResolvedNo2026Q3
Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R2023-10-01 – —ResolvedNo2026Q3
Revised Total Coliform Rule / Reporting, Assessment Forms (RTCR)2023-08-01 – —ResolvedNo2026Q3
Nitrate Rule / Monitoring, Regular2023-01-01 – 2023-12-31ResolvedNo2026Q3
Arsenic Rule / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Inorganic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Synthetic Organic Chemicals / Monitoring, Regular2017-01-01 – 2019-12-31ResolvedNo2026Q3
Total Coliform Rule / Monitoring, Routine Major (TCR)1994-04-01 – 1994-04-30ArchivedNo2026Q3
Total Coliform Rule / Monitoring, Routine Major (TCR)1994-03-01 – 1994-03-31ArchivedNo2026Q3

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