Community Water System · PWS OK3004710
Blanchard
Operator location Blanchard, Oklahoma - 32% of 98 violations are health-based (upper-third health share (> 23%)); surface water source; 2,966 served per SDWIS.
- 2,966
- People served (this PWS)
- 98
- EPA violations (this PWS)
- 31
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Blanchard standing, high SDWIS violation third
32% of 98 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 32% is upper-third health share (> 23%). Population rank #10,757 of 29,740 among systems serving 500+.
The verdict
Blanchard sits in the upper third of the sitemap cohort by violation count (98), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 2,966 (mid served population (≤ 3,309)). Health-based share is 32% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #10,757 of 29,740
- Population · /systems
- #166 of 558
- Population · OK
- 98
- Total EPA violations on record
- 32%
- 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
- 2,868
- County
- McClain
- School/Daycare
- No
- MCL Violations
- 10
- Monitoring Violations
- 60
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MR | 19 | 2015 |
| Total Haloacetic Acids (HAA5) | MR | 19 | 2015 |
| Chlorine | MRDL | 19 | 2018 |
| Coliform (TCR) | MR | 18 | 2015 |
| Coliform (TCR) | MCL | 10 | 2015 |
| Consumer Confidence Rule | Other | 5 | 2014 |
| Lead and Copper Rule | MR | 4 | 2015 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
Violation Count vs. the National Corpus
Blanchard has 98 recorded EPA violations, 73% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 27% carry more. 32% of this system's own violations are health-based (31 of 98), and it ranks #10,757 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)
98 Around the middle fewer violations than 27% 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 Blanchard
31 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for OK3004710.
Sources: EPA SDWIS
Nationwide peers
98 violations · 2,966 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 Blanchard
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.