Community Water System · PWS OH8000314
Marysville City PWS
Operator location Marysville, Ohio - 57% of 110 violations are health-based (upper-third health share (> 23%)); surface water source; 25,571 served per SDWIS.
- 25,571
- People served (this PWS)
- 110
- EPA violations (this PWS)
- 63
- Health-based (this PWS)
- No PFAS
- UCMR5 (this PWS)
Marysville City PWS standing, high SDWIS violation third
57% of 110 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 57% is upper-third health share (> 23%). UCMR5: UCMR5 tested, none detected. Population rank #2,174 of 29,740 among systems serving 500+.
The verdict
Marysville City PWS sits in the upper third of the sitemap cohort by violation count (110), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (25,571; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 57% - most of this ledger is MCL or treatment-technique exceedance. UCMR5 tested this system and reported no PFAS above the minimum reporting level.
- #2,174 of 29,740
- Population · /systems
- #68 of 931
- Population · OH
- 110
- Total EPA violations on record
- 57%
- 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
- 11,520
- County
- Union
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 39
- Treatment Tech Violations
- 59
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 55 | 1997 |
| LASSO | MR | 9 | 2005 |
| Atrazine | MR | 9 | 2005 |
| Simazine | MR | 9 | 2005 |
| Arsenic | MR | 4 | 1996 |
| Fluoride | MR | 4 | 1996 |
| Interim Enhanced Surface Water Treatment Rule | MR | 4 | 2008 |
| CARBON, TOTAL | TT | 4 | 2011 |
| Coliform (TCR) | MCL | 4 | 1992 |
| Consumer Confidence Rule | Other | 1 | 2019 |
Violation Count vs. the National Corpus
Marysville City PWS has 110 recorded EPA violations, 75% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 25% carry more. 57% of this system's own violations are health-based (63 of 110), and it ranks #2,174 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)
110 Around the middle fewer violations than 25% 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. 0 of 87 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFUnA | 6/27/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 6/27/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 6/27/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 6/27/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 6/27/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 6/27/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| 6:2 FTS | 6/27/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFDoA | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 6/27/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 6/27/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 6/27/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpS | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 6/27/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 6/27/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFMBA | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 6/27/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBS | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 6/27/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTA | 5/10/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| NMeFOSAA | 5/10/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 5/10/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 5/10/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| NMeFOSAA | 4/4/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 4/4/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 4/4/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 4/4/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFMPA | 3/6/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpA | 3/6/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 3/6/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 3/6/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 3/6/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 3/6/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 3/6/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 3/6/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 3/6/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFUnA | 3/6/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFDoA | 3/6/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 3/6/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 3/6/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 3/6/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 3/6/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 3/6/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 3/6/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
Health-based violations on Marysville City PWS
63 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for OH8000314.
Sources: EPA SDWIS · Ohio EPA, Division of Drinking and Ground Waters
Nationwide peers
110 violations · 25,571 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 with similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Marysville City PWS
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.