Community Water System · PWS OK2001610
Elgin PWA
Operator location Elgin, Oklahoma - upper-third violation load (> 74 violations) with 331 EPA violations; groundwater source; 3,300 served (PWS-level, not municipal population).
- 3,300
- People served (this PWS)
- 331
- EPA violations (this PWS)
- 12
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Elgin PWA standing, high SDWIS violation third
331 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 4% is middle-third health share (≤ 23%). Population rank #9,951 of 29,740 among systems serving 500+.
The verdict
Elgin PWA sits in the upper third of the sitemap cohort by violation count (331), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 3,300 (mid served population (≤ 3,309)). Health-based share is 4% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #9,951 of 29,740
- Population · /systems
- #145 of 558
- Population · OK
- 331
- Total EPA violations on record
- 4%
- 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
- 1,246
- County
- Comanche
- School/Daycare
- No
- MCL Violations
- 10
- Monitoring Violations
- 306
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Hexachlorocyclopentadiene | MR | 15 | 2024 |
| Di(2-ethylhexyl) adipate | MR | 14 | 2024 |
| OXAMYL | MR | 14 | 2024 |
| Di(2-ethylhexyl) phthalate | MR | 14 | 2024 |
| Benzo(a)pyrene | MR | 14 | 2024 |
| Carbofuran | MR | 14 | 2024 |
| Heptachlor | MR | 14 | 2024 |
| Coliform (TCR) | MR | 13 | 2004 |
| Coliform (TCR) | MCL | 10 | 2009 |
| Arsenic | MR | 8 | 2011 |
| Cadmium | MR | 8 | 2011 |
| Chromium | MR | 8 | 2011 |
| Fluoride | MR | 8 | 2011 |
| Nickel | MR | 8 | 2011 |
| Antimony, Total | MR | 8 | 2011 |
| Beryllium, Total | MR | 8 | 2011 |
| Thallium, Total | MR | 8 | 2011 |
| Mercury | MR | 8 | 2011 |
| TTHM | MR | 8 | 2020 |
| Lead and Copper Rule | MR | 8 | 2025 |
| Barium | MR | 8 | 2011 |
| Selenium | MR | 8 | 2011 |
| Chlorine | MR | 8 | 2023 |
| Revised Total Coliform Rule | MON | 8 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2020 |
| Diquat | MR | 6 | 2024 |
| Nitrate-Nitrite | MR | 6 | 2024 |
| Combined Uranium | MR | 3 | 2004 |
| Gross Beta Particle Activity | MR | 3 | 2004 |
| Combined Radium (-226 and -228) | MR | 3 | 2004 |
Violation Count vs. the National Corpus
Elgin PWA has 331 recorded EPA violations, 92% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 8% carry more. 4% of this system's own violations are health-based (12 of 331), and it ranks #9,951 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)
331 Higher than most more violations than 92% 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 Elgin PWA
331 violations on record for OK2001610; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS
Nationwide peers
331 violations · 3,300 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 Elgin PWA
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.