Community Water System · PWS OK1021204
Fairfax
Operator location Fairfax, Oklahoma - 73% of 1,509 violations are health-based (upper-third health share (> 23%)); surface water source; 1,555 served per SDWIS.
- 1,555
- People served (this PWS)
- 1,509
- EPA violations (this PWS)
- 1,102
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Fairfax standing, high SDWIS violation third
73% of 1,509 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 73% is upper-third health share (> 23%). Population rank #15,585 of 29,740 among systems serving 500+.
The verdict
Fairfax sits in the upper third of the sitemap cohort by violation count (1,509), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,555 (mid served population (≤ 3,309)). Health-based share is 73% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #15,585 of 29,740
- Population · /systems
- #304 of 558
- Population · OK
- 1,509
- Total EPA violations on record
- 73%
- 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
- 776
- County
- Osage
- School/Daycare
- No
- MCL Violations
- 751
- Monitoring Violations
- 368
- Treatment Tech Violations
- 351
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 476 | 2023 |
| CARBON, TOTAL | TT | 305 | 2024 |
| Total Haloacetic Acids (HAA5) | MCL | 266 | 2022 |
| CARBON, TOTAL | MR | 43 | 2014 |
| Surface Water Treatment Rule | TT | 38 | 1997 |
| TTHM | MR | 34 | 2022 |
| Total Haloacetic Acids (HAA5) | MR | 23 | 2021 |
| Gross Alpha, Excl. Radon and U | MR | 14 | 2022 |
| Gross Beta Particle Activity | MR | 14 | 2022 |
| Lead and Copper Rule | MR | 14 | 2022 |
| Combined Uranium | MR | 14 | 2022 |
| Combined Radium (-226 and -228) | MR | 14 | 2022 |
| Chlorine | MR | 12 | 2019 |
| Coliform (TCR) | MCL | 9 | 2010 |
| Nitrate-Nitrite | MR | 8 | 2021 |
| Interim Enhanced Surface Water Treatment Rule | TT | 8 | 2020 |
| 1,2,4-Trichlorobenzene | MR | 8 | 2021 |
| cis-1,2-Dichloroethylene | MR | 8 | 2021 |
| DICHLOROMETHANE | MR | 8 | 2021 |
| o-Dichlorobenzene | MR | 8 | 2021 |
| trans-1,2-Dichloroethylene | MR | 8 | 2021 |
| 1,2-Dichloroethane | MR | 8 | 2021 |
| 1,1,2-Trichloroethane | MR | 8 | 2021 |
| Benzene | MR | 8 | 2021 |
| Toluene | MR | 8 | 2021 |
| Ethylbenzene | MR | 8 | 2021 |
| Xylenes, Total | MR | 8 | 2021 |
| p-Dichlorobenzene | MR | 8 | 2021 |
| Vinyl chloride | MR | 8 | 2021 |
| 1,1-Dichloroethylene | MR | 8 | 2021 |
Violation Count vs. the National Corpus
Fairfax has 1,509 recorded EPA violations, 100% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 0% carry more. 73% of this system's own violations are health-based (1,102 of 1,509), and it ranks #15,585 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)
1,509 Higher than most more violations than 99%+ 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 Fairfax
1,102 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for OK1021204.
Sources: EPA SDWIS
Nationwide peers
1,509 violations · 1,555 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 Fairfax
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Oklahoma compares on the same EPA violation measures. Oklahoma 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.