Jefferson County, Oklahoma
SDWIS compliance plate
Sheet OK067 · Jefferson County 6 sys · 3,652 viol · #2155/3254
VIOL-SEVERE · HEALTH-HIGH · RANK-LOWER · PHOTO-FINISH · PFAS-HIGH · SRC-SW · SYS-TINY · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-HIGH 60.1% health
- RANK-LOWER #2155/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-HIGH 100.0% detect
- SRC-SW SW lead 67%
- SYS-TINY 6 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Tulsa County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Jefferson County ranks #2,155 of 3,254 counties by people served, and #47 of 77 counties in Oklahoma. See methodology · corpus placement.
Jefferson County standing, mid-flagged corpus third
Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 60.1% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #2,155 of 3,254 · #47 of 77 in Oklahoma.
Flagged-rate neighbourhood around Jefferson County
Lowest/highest poles plus in-state counties nearest Jefferson County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Jefferson Co Cons RWD #1 | 8,398 | 1,247 | Detected |
| Waurika Public Works Authority | 2,100 | 1,138 | - |
| Ringling | 1,200 | 76 | - |
| Ryan Utilities Authority | 800 | 982 | - |
| Terral | 386 | 117 | - |
| Cornish | 41 | 92 | - |
Compare beyond Oklahoma
Mid-flagged peers for Jefferson County
Cross-state counties nearest Jefferson County on flagged-system share (100.0%) and cumulative violation count (3,652). 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.