Community Water System · PWS MI0005990
Sebewaing Light & Water
Operator location Sebewaing, Michigan - lower-third violation load (≤ 21 violations) with 19 EPA violations; groundwater source; 1,721 served (PWS-level, not municipal population).
- 1,721
- People served (this PWS)
- 19
- EPA violations (this PWS)
- 4
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Sebewaing Light & Water standing, low SDWIS violation third
19 EPA SDWIS violations on record - lower-third violation load (≤ 21 violations). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 21% is middle-third health share (≤ 23%). Population rank #14,808 of 29,740 among systems serving 500+.
The verdict
Sebewaing Light & Water is in the lower third by violation count (19; 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 mid-pack at 1,721 (mid served population (≤ 3,309)). Health-based share is 21% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #14,808 of 29,740
- Population · /systems
- #450 of 1,375
- Population · MI
- 19
- Total EPA violations on record
- 21%
- 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
- 1,010
- County
- Huron
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 14
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MR | 7 | 2019 |
| Coliform (TCR) | MCL | 4 | 1999 |
| Gross Alpha, Excl. Radon and U | MR | 3 | 2017 |
| Nitrate-Nitrite | MR | 2 | 1993 |
| Radium-228 | MR | 1 | 2019 |
| Radium-226 | MR | 1 | 2019 |
Violation Count vs. the National Corpus
Sebewaing Light & Water has 19 recorded EPA violations, 30% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 69% carry more. 21% of this system's own violations are health-based (4 of 19), and it ranks #14,808 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)
19 Lower than most fewer violations than 69% 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
SDWIS compliance record for Sebewaing Light & Water
19 violations on record for MI0005990; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS · Michigan EGLE, Drinking Water and Environmental Health Division
Nationwide peers
19 violations · 1,721 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.
Cross-state systems near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Sebewaing Light & Water
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Michigan compares on the same EPA violation measures. Michigan 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.