McClain County, Oklahoma
SDWIS compliance plate
Sheet OK087 · McClain County 13 sys · 2,005 viol · #1588/3254
VIOL-SEVERE · HEALTH-LOW · RANK-MID · BELOW-PEER · PFAS-HIGH · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 92.3% flagged
- HEALTH-LOW 15.8% health
- RANK-MID #1588/3254
- BELOW-PEER 1.1 pp cleaner
- PFAS-HIGH 50.0% detect
- SRC-GW GW lead 62%
- SYS-SMALL 13 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Oklahoma County (+ 1.1 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, McClain County ranks #1,588 of 3,254 counties by people served, and #32 of 77 counties in Oklahoma. See methodology · corpus placement.
McClain County standing, lower-flagged corpus third
Flagged-system rate 92.3% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 15.8% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 50.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #1,588 of 3,254 · #32 of 77 in Oklahoma.
Flagged-rate neighbourhood around McClain County
Lowest/highest poles plus in-state counties nearest McClain County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Newcastle | 7,900 | 103 | Detected |
| Purcell | 6,693 | 74 | Clean |
| Blanchard | 2,966 | 98 | - |
| Goldsby Water Auth Trust | 2,000 | 232 | - |
| McClain Co RWD # 8 | 1,897 | 407 | - |
| Wayne | 688 | 121 | - |
| Washington | 600 | 179 | - |
| Dibble | 550 | 55 | - |
| Cole | 473 | 65 | - |
| Byars | 275 | 126 | - |
| McClain County Rw & SD #9 | 250 | 4 | - |
| Whippoorwill Estates | 83 | 541 | - |
| Trek Coffee Co | 25 | 0 | - |
Compare beyond Oklahoma
Lower-flagged peers for McClain County
Cross-state counties nearest McClain County on flagged-system share (92.3%) and cumulative violation count (2,005). In-state neighbours stay on the compliance plate above.
Similar flagged-system rate
Nearest cross-state counties by % of SDWIS systems with at least one violation on record.
Similar violation load
Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).
Read our methodology · Check your water system - how this data is sourced, computed, and verified.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.