Community Water System · PWS OK2002304
Shattuck
Operator location Shattuck, Oklahoma - upper-third violation load (> 74 violations) with 145 EPA violations; groundwater source; 1,200 served (PWS-level, not municipal population).
- 1,200
- People served (this PWS)
- 145
- EPA violations (this PWS)
- 14
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Shattuck standing, high SDWIS violation third
145 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 10% is middle-third health share (≤ 23%). Population rank #17,915 of 29,740 among systems serving 500+.
The verdict
Shattuck sits in the upper third of the sitemap cohort by violation count (145), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,200 (mid served population (≤ 3,309)). Health-based share is 10% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #17,915 of 29,740
- Population · /systems
- #351 of 558
- Population · OK
- 145
- Total EPA violations on record
- 10%
- 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
- 800
- County
- Ellis
- School/Daycare
- No
- MCL Violations
- 13
- Monitoring Violations
- 111
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Simazine | MR | 20 | 2024 |
| Glyphosate | MR | 15 | 2024 |
| BHC-GAMMA | MR | 11 | 2024 |
| Dalapon | MR | 11 | 2024 |
| 2,4-D | MR | 11 | 2024 |
| Coliform (TCR) | MR | 10 | 2013 |
| Coliform (TCR) | MCL | 9 | 1996 |
| Chlorine | MR | 8 | 2024 |
| Revised Total Coliform Rule | MON | 8 | 2024 |
| Nitrate-Nitrite | MR | 5 | 2006 |
| Combined Radium (-226 and -228) | MCL | 4 | 2005 |
| 2,4,5-TP | MR | 4 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2024 |
| TTHM | MR | 3 | 2024 |
| Lead and Copper Rule | MR | 2 | 1994 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
| Consumer Confidence Rule | Other | 1 | 2012 |
Violation Count vs. the National Corpus
Shattuck has 145 recorded EPA violations, 80% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 19% carry more. 10% of this system's own violations are health-based (14 of 145), and it ranks #17,915 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)
145 Higher than most more violations than 80% 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 Shattuck
145 violations on record for OK2002304; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS
Nationwide peers
145 violations · 1,200 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 Shattuck
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.