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CheckYourWater

Minnesota

Hastings

Your water system exceeds federal PFAS limits. We recommend taking action.

Population served
23K
Systems tested
1
Compounds detected
29
Above federal limits
2

Source: EPA UCMR 5 · Samples collected 2023–2026

What was found in Hastings’s water

Hastings, MN

Serves 23K people · GW

PFOAPerfluorooctanoic acid
12 ppt
3.0× the federal limit
0EPA limit (4.0 ppt)2× limit
PFOSPerfluorooctanesulfonic acid
4.5 ppt
1.1× the federal limit
0EPA limit (4.0 ppt)2× limit
PFHxSPerfluorohexanesulfonic acid
3.3 ppt
Below federal limit
0EPA limit (10 ppt)2× limit
11Cl-PF3OUdS11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

4:2FTS1H,1H,2H,2H-perfluorohexanesulfonic acid (4:2 FTS)
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

6:2FTS1H,1H,2H,2H-perfluorooctanesulfonic acid (6:2 FTS)
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

8:2FTS1H,1H,2H,2H-perfluorodecanesulfonic acid (8:2 FTS)
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

9Cl-PF3ONS9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

ADONA4,8-dioxa-3H-perfluorononanoic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

HFPO-DAHexafluoropropylene oxide dimer acid
Below federal limit
0EPA limit (10 ppt)2× limit
NEtFOSAAN-ethyl perfluorooctanesulfonamidoacetic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

NFDHANonafluoro-3,6-dioxaheptanoic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

NMeFOSAAN-methyl perfluorooctanesulfonamidoacetic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFBAPerfluorobutanoic acid
156 ppt
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFBSPerfluorobutanesulfonic acid
3.3 ppt
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFDAPerfluorodecanoic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFDoAPerfluorododecanoic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFEESAPerfluoro (2-ethoxyethane) sulfonic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFHpAPerfluoroheptanoic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFHpSPerfluoroheptanesulfonic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFHxAPerfluorohexanoic acid
4.9 ppt
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFMBAPerfluoro(4-methoxybutanoic) acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFMPAPerfluoro-3-methoxypropanoic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFNAPerfluorononanoic acid
Below federal limit
0EPA limit (10 ppt)2× limit
PFPeAPerfluoropentanoic acid
11 ppt
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFPeSPerfluoropentanesulfonic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFTAPerfluorotetradecanoic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFTrDAPerfluorotridecanoic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

PFUnAPerfluoroundecanoic acid
No federal limit established

This compound is monitored under UCMR 5 but has no enforceable EPA drinking water limit yet.

View full system report →

About PFAS contamination in Hastings

## Summary Hastings's municipal water supply has earned a D grade, meaning residents are being served water with PFAS contamination that exceeds federal health limits. Two compounds surpass EPA thresholds: PFOA was detected at 11.8 parts per trillion — nearly three times the federal limit of 4 parts per trillion — and PFOS came in at 4.55 parts per trillion, just above its 4 parts per trillion limit. The contamination has been traced to 3M manufacturing facilities in the region.

## What the data shows Testing identified multiple PFAS compounds in Hastings's water. Of the compounds with established federal limits, both PFOA (11.8 ppt) and PFOS (4.55 ppt) exceed the EPA's 4 ppt maximum. PFHxS was detected at 3.25 ppt, below its 10 ppt federal limit. Notably, PFBA was measured at 155.94 ppt — a strikingly high concentration — though the EPA has not yet set a federal limit for that compound. Several other compounds were detected but concentrations were not reported in available data.

## What residents should know Given the D grade and confirmed exceedances, residents may want to consider additional filtration at home; certified NSF/ANSI 58 reverse osmosis filters and NSF/ANSI 53 activated carbon filters are both recognized for reducing PFAS levels in drinking water. Hastings residents should also be aware that settlement funds from 3M related to Washington County contamination may be available to help address remediation costs — contact your water utility or local officials for details on eligibility. For the most current testing results and any remediation updates, contact the Hastings public water utility directly.

About this summary: Narrative text on this page was drafted by an AI model (claude-sonnet-4-6) from EPA UCMR 5 data and reviewed before publication. The numeric data above is reported by water utilities directly to the EPA. If you spot an error, email data@checkyourwater.org.

What Hastings residents can do

Hastings's water exceeds federal PFAS limits. We recommend residents take action:

  • Install a reverse osmosis (RO) or activated-carbon water filter certified to NSF/ANSI Standard 53 or 58 for PFAS reduction. RO systems remove the widest range of PFAS compounds.
  • Do NOT boil your water to remove PFAS — boiling concentrates them.
  • Request your most recent Consumer Confidence Report from your utility and ask when PFAS treatment will be installed.
  • Contact your local elected officials and water utility board to demand a remediation timeline.
  • Get independent water testing through services like Tap Score (mytapscore.com) if you want to verify your in-home levels.
  • Talk to your healthcare provider about PFAS exposure — especially if you are pregnant, nursing, or have young children.

Read the full action guide →

Primary contamination source: 3M manufacturing facilities

Settlement information: 3M Washington County settlement funds available

How Hastings compares

Hastings is one of 1 community we track in Minnesota where PFAS levels exceed federal limits.

Where this data comes from

  • Testing program: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5)
  • Testing period: 2023–2026
  • Federal limits: EPA Maximum Contaminant Levels (MCLs) finalized April 2024
  • Methodology: Read how we calculate grades
  • Raw EPA data: EPA UCMR Occurrence Data

This data reflects EPA testing. Your water utility may have more recent results — contact them directly for the most current information.