Community Water System · PWS OK2001901
Oilton
Operator location Oilton, Oklahoma - 0% of 2,466 violations are health-based (lower-third health share (≤ 1%)); groundwater source; 1,435 served per SDWIS.
- 1,435
- People served (this PWS)
- 2,466
- EPA violations (this PWS)
- 4
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Oilton standing, high SDWIS violation third
0% of 2,466 recorded violations are health-based - lower-third health share (≤ 1%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 0% is lower-third health share (≤ 1%). Population rank #16,362 of 29,740 among systems serving 500+.
The verdict
Oilton sits in the upper third of the sitemap cohort by violation count (2,466), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,435 (mid served population (≤ 3,309)). Health-based share is only 0% - almost all of this trail is monitoring or reporting. No UCMR5 PFAS test appears for this system in this extract.
- #16,362 of 29,740
- Population · /systems
- #322 of 558
- Population · OK
- 2,466
- Total EPA violations on record
- 0%
- 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
- 574
- County
- Creek
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 2,417
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Endrin | MR | 64 | 2025 |
| Methoxychlor | MR | 64 | 2025 |
| Toxaphene | MR | 64 | 2025 |
| Dalapon | MR | 64 | 2025 |
| Endothall | MR | 64 | 2025 |
| Simazine | MR | 64 | 2025 |
| Picloram | MR | 64 | 2025 |
| Dinoseb | MR | 64 | 2025 |
| Hexachlorocyclopentadiene | MR | 64 | 2025 |
| Carbofuran | MR | 64 | 2025 |
| LASSO | MR | 64 | 2025 |
| Heptachlor | MR | 64 | 2025 |
| Heptachlor epoxide | MR | 64 | 2025 |
| 2,4,5-TP | MR | 64 | 2025 |
| HEXACHLOROBENZENE | MR | 64 | 2025 |
| Pentachlorophenol | MR | 64 | 2025 |
| Total Polychlorinated Biphenyls (PCB) | MR | 64 | 2025 |
| ETHYLENE DIBROMIDE | MR | 64 | 2025 |
| Chlordane | MR | 64 | 2025 |
| Diquat | MR | 64 | 2025 |
| Glyphosate | MR | 64 | 2025 |
| Di(2-ethylhexyl) adipate | MR | 64 | 2025 |
| 2,4-D | MR | 64 | 2025 |
| Benzo(a)pyrene | MR | 64 | 2025 |
| BHC-GAMMA | MR | 64 | 2025 |
| Atrazine | MR | 64 | 2025 |
| OXAMYL | MR | 64 | 2025 |
| Di(2-ethylhexyl) phthalate | MR | 64 | 2025 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 64 | 2025 |
| Coliform (TCR) | MR | 22 | 2014 |
Violation Count vs. the National Corpus
Oilton has 2,466 recorded EPA violations, 100% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 0% carry more. 0% of this system's own violations are health-based (4 of 2,466), and it ranks #16,362 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)
2,466 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 Oilton
4 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for OK2001901.
Sources: EPA SDWIS
Nationwide peers
2,466 violations · 1,435 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 Oilton
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.