Community Water System · PWS OH7005912
Aqua Ohio - Mansfield System #02
Operator location Massillon, Ohio - 23% of 52 violations are health-based (upper-third health share (> 23%)); groundwater source; 588 served per SDWIS.
- 588
- People served (this PWS)
- 52
- EPA violations (this PWS)
- 12
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Aqua Ohio - Mansfield System #02 standing, mid SDWIS violation third
23% of 52 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 23% is upper-third health share (> 23%). Population rank #26,763 of 29,740 among systems serving 500+.
The verdict
Aqua Ohio - Mansfield System #02 lands in the middle third by violation volume (52), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (588; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 23% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #26,763 of 29,740
- Population · /systems
- #847 of 931
- Population · OH
- 52
- Total EPA violations on record
- 23%
- 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
- Private
- Connections
- 241
- County
- Richland
- School/Daycare
- No
- MCL Violations
- 12
- Monitoring Violations
- 32
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 12 | 1992 |
| Endrin | MR | 4 | 1991 |
| BHC-GAMMA | MR | 4 | 1991 |
| Toxaphene | MR | 4 | 1991 |
| 2,4-D | MR | 4 | 1991 |
| 2,4,5-TP | MR | 4 | 1991 |
| Methoxychlor | MR | 4 | 1991 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2013 |
| TTHM | MR | 4 | 2013 |
Violation Count vs. the National Corpus
Aqua Ohio - Mansfield System #02 has 52 recorded EPA violations, 57% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 42% carry more. 23% of this system's own violations are health-based (12 of 52), and it ranks #26,763 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)
52 Around the middle fewer violations than 42% 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 Aqua Ohio - Mansfield System #02
12 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for OH7005912.
Sources: EPA SDWIS · Ohio EPA, Division of Drinking and Ground Waters
Nationwide peers
52 violations · 588 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 Aqua Ohio - Mansfield System #02
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Ohio compares on the same EPA violation measures. Ohio 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.