Community Water System · PWS IN5290002
Ossian Municipal Water Department
Operator location Ossian, Indiana - upper-third violation load (> 74 violations) with 170 EPA violations; groundwater source; 3,289 served (PWS-level, not municipal population).
- 3,289
- People served (this PWS)
- 170
- EPA violations (this PWS)
- 1
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Ossian Municipal Water Department standing, high SDWIS violation third
170 EPA SDWIS violations on record - upper-third violation load (> 74 violations). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 1% is middle-third health share (≤ 23%). Population rank #9,976 of 29,740 among systems serving 500+.
The verdict
Ossian Municipal Water Department sits in the upper third of the sitemap cohort by violation count (170), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 3,289 (mid served population (≤ 3,309)). Health-based share is 1% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #9,976 of 29,740
- Population · /systems
- #213 of 788
- Population · IN
- 170
- Total EPA violations on record
- 1%
- 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
- 1,305
- County
- Wells
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 167
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 20 | 2013 |
| Nickel | MR | 12 | 2002 |
| Antimony, Total | MR | 12 | 2002 |
| Beryllium, Total | MR | 12 | 2002 |
| Selenium | MR | 12 | 2002 |
| Barium | MR | 12 | 2002 |
| Cadmium | MR | 12 | 2002 |
| CYANIDE | MR | 12 | 2002 |
| Thallium, Total | MR | 12 | 2002 |
| Fluoride | MR | 12 | 2002 |
| Mercury | MR | 12 | 2002 |
| Arsenic | MR | 12 | 2002 |
| Chromium | MR | 12 | 2002 |
| Lead and Copper Rule | MR | 2 | 2024 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1980 |
| Selenium | MCL | 1 | 1983 |
Violation Count vs. the National Corpus
Ossian Municipal Water Department has 170 recorded EPA violations, 83% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 17% carry more. 1% of this system's own violations are health-based (1 of 170), and it ranks #9,976 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)
170 Higher than most more violations than 83% 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 Ossian Municipal Water Department
170 violations on record for IN5290002; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS · Indiana Department of Environmental Management, Drinking Water Branch
Nationwide peers
170 violations · 3,289 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
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 Ossian Municipal Water Department
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Indiana compares on the same EPA violation measures. Indiana 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.