PlainWater
States → Minnesota

Arlington

PWS ID: MN1720001 · Arlington, Minnesota 55307-9551

Arlington serves 2,230 people in Arlington, Minnesota using Groundwater water sources. It has 33 recorded EPA violations, including 12 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: Arlington

Arlington is a local-owned community water system that delivers drinking water to 2,230 residents in Arlington, Minnesota (Sibley County) through 854 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 33 total violations for this system , of which 12 (36%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 11 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Combined Radium (-226 and -228), recorded in 12 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 12 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Minnesota, EPA tracks 6,557 public water systems serving 5,239,398 people, with 59,895 cumulative violations and 36,496 health-based violations on record. About 52% of systems in the state carry at least one violation, and state-wide the average per system is 9.1 violations. Arlington's 33 violations sit above the Minnesota average. Statewide, 149 of 196 UCMR5-tested systems have reported PFAS detections (76%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
2,230
Total Violations
33
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
854
County
Sibley
School/Daycare
No
MCL Violations
12
Monitoring Violations
11
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MCL 12 2000
Coliform (TCR) MR 10 2001
LEAD AND COPPER RULE REVISIONS RPT 2 2025
Lead and Copper Rule MR 1 1994

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFUnA 8/18/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 8/18/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 8/18/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/18/2025 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 8/18/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/18/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 8/18/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 8/18/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/18/2025 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 8/18/2025 <0.006 µg/L 0.006 µg/L Not Detected
lithium 8/18/2025 11.0000 µg/L 9 µg/L Detected
PFTrDA 8/18/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/18/2025 <0.008 µg/L 0.008 µg/L Not Detected
11Cl-PF3OUdS 8/18/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/18/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFMPA 8/18/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/18/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/18/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 8/18/2025 <0.004 µg/L 0.004 µg/L Not Detected
9Cl-PF3ONS 2/12/2025 <0.002 µg/L 0.002 µg/L Not Detected
4:2 FTS 2/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 2/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 2/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 2/12/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 2/12/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 2/12/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 2/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 2/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 2/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 2/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 2/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 2/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 2/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 2/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 2/12/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 2/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 2/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 2/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 2/12/2025 <0.02 µg/L 0.02 µg/L Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Arlington.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID MN1720001 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Minnesota Drinking Water Authority

Minnesota's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find MN regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / MN1720001 / 5200
2001 Coliform (TCR) MR 10 SDWIS / MN1720001 / 3100
2000 Combined Radium (-226 and -228) MCL 12 SDWIS / MN1720001 / 4010
1994 Lead and Copper Rule MR 1 SDWIS / MN1720001 / 5000

How Arlington Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Arlington Minnesota avg Federal benchmark
Total violations 33 9.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 12 5.6 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 76% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,230 799 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 6,557 regulated public water systems in Minnesota.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Arlington water safe to drink? ▼
Arlington (PWS ID: MN1720001) has 33 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 2,230 people using Groundwater sources.
How many people does Arlington serve? ▼
Arlington serves 2,230 people in Arlington, Minnesota. It is a Local-owned system using Groundwater water sources with 854 service connections.
What type of violations does Arlington have? ▼
Arlington has 33 total violations: 12 health-based violations (MCL exceedances or treatment failures), 11 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Arlington water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in Arlington's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Arlington use? ▼
Arlington uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Explore PlainWater

Water in Minnesota

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Minnesota

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial