Community Water System · PWS MN1650003
Buffalo Lake
Operator location Buffalo Lake, Minnesota - 38% of 71 violations are health-based (upper-third health share (> 23%)); groundwater source; 703 served per SDWIS.
- 703
- People served (this PWS)
- 71
- EPA violations (this PWS)
- 27
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Buffalo Lake standing, mid SDWIS violation third
38% of 71 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 38% is upper-third health share (> 23%). Population rank #24,211 of 29,740 among systems serving 500+.
The verdict
Buffalo Lake lands in the middle third by violation volume (71), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (703; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 38% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #24,211 of 29,740
- Population · /systems
- #499 of 677
- Population · MN
- 71
- Total EPA violations on record
- 38%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 347
- County
- Renville
- School/Daycare
- No
- MCL Violations
- 27
- Monitoring Violations
- 44
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 39 | 2020 |
| Arsenic | MCL | 27 | 2006 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2021 |
| TTHM | MR | 1 | 2021 |
Violation Count vs. the National Corpus
Buffalo Lake has 71 recorded EPA violations, 65% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 34% carry more. 38% of this system's own violations are health-based (27 of 71), and it ranks #24,211 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)
71 Around the middle fewer violations than 34% 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
Health-based violations on Buffalo Lake
27 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for MN1650003.
Sources: EPA SDWIS
Nationwide peers
71 violations · 703 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Buffalo Lake
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.