Community Water System · PWS MN1270045
Richfield
Operator location Richfield, Minnesota - 0% of 3 violations are health-based (lower-third health share (≤ 1%)); groundwater source; 36,899 served per SDWIS.
- 36,899
- People served (this PWS)
- 3
- EPA violations (this PWS)
- 0
- Health-based (this PWS)
- 1 PFAS
- UCMR5 (this PWS)
Richfield standing, low SDWIS violation third
0% of 3 recorded violations are health-based - lower-third health share (≤ 1%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 0% is lower-third health share (≤ 1%). UCMR5: lower-third PFAS panel (≤ 2 compounds). Population rank #1,513 of 29,740 among systems serving 500+.
The verdict
Richfield is in the lower third by violation count (3; lower-third violation load (≤ 21 violations)). A low count does not mean the system is unmonitored - monitoring and reporting violations still appear in SDWIS. Population served is large (36,899; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is only 0% - almost all of this trail is monitoring or reporting. UCMR5 detected 1 PFAS compound (lower-third PFAS panel (≤ 2 compounds)).
- #1,513 of 29,740
- Population · /systems
- #25 of 677
- Population · MN
- 3
- Total EPA violations on record
- 0%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 10,700
- County
- Hennepin
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 3
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 3 | 1993 |
Violation Count vs. the National Corpus
Richfield has 3 recorded EPA violations, 7% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 92% carry more. 0% of this system's own violations are health-based (0 of 3), and it ranks #1,513 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
3 Among the lowest violation counts fewer violations than 92% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 58 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFMBA | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 2/10/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 2/10/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 2/10/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 2/10/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 2/10/2025 | 16.10 ppt | 5.00 ppt | Detected |
| PFPeA | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| ADONA | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 2/10/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 2/10/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 2/10/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 2/10/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 2/10/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 2/10/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 2/10/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFHpA | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NEtFOSAA | 2/10/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 2/10/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFEESA | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 2/10/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 2/10/2025 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFHpS | 2/10/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 2/10/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 10/10/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHpS | 10/10/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 10/10/2024 | 20.00 ppt | 5.00 ppt | Detected |
| NFDHA | 10/10/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFPeS | 10/10/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 4:2 FTS | 10/10/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 10/10/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 10/10/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 10/10/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 10/10/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 10/10/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFEESA | 10/10/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 10/10/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 10/10/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 10/10/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| 6:2 FTS | 10/10/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTA | 10/10/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 10/10/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 10/10/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 10/10/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 10/10/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
Health-based violations on Richfield
0 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for MN1270045.
Sources: EPA SDWIS
Nationwide peers
3 violations · 36,899 served: nearest cross-state SDWIS matches.
Cross-state systems with similarly light violation ledgers
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
- Cherokee Water System EPA Region 4 — Tribal Water Systems 3violations
- St Mary KOA EPA Region 8 — Tribal Water Systems 3violations
- San Tan Mountain Casino Temporary Water System EPA Region 9 — Tribal Water Systems 3violations
- Mission View Mobile Home Park (Tucson Water Consec EPA Region 9 — Tribal Water Systems 3violations
Cross-state systems with similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Richfield
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Minnesota compares on the same EPA violation measures. Minnesota systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.