Jefferson Parish, Louisiana
SDWIS compliance plate
Sheet LA051 · Jefferson Parish 4 sys · 247 viol · #158/3254
VIOL-SEVERE · HEALTH-HIGH · RANK-TOP · PHOTO-FINISH · PFAS-HIGH · SRC-SW · SYS-TINY · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-HIGH 50.6% health
- RANK-TOP #158/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-HIGH 75.0% detect
- SRC-SW SW lead 100%
- SYS-TINY 4 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Orleans Parish (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Jefferson Parish ranks #158 of 3,254 counties by people served, and #2 of 64 counties in Louisiana. See methodology · corpus placement.
Jefferson Parish 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 50.6% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 75.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #158 of 3,254 · #2 of 64 in Louisiana.
Flagged-rate neighbourhood around Jefferson Parish
Lowest/highest poles plus in-state counties nearest Jefferson Parish on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| E Jefferson Ww District 1 | 275,163 | 2 | Detected |
| W Jefferson Ww District 2 | 140,264 | 14 | Detected |
| Gretna Waterworks | 17,026 | 72 | Detected |
| Westwego Waterworks | 8,534 | 159 | Clean |
Compare beyond Louisiana
Mid-flagged peers for Jefferson Parish
Cross-state counties nearest Jefferson Parish on flagged-system share (100.0%) and cumulative violation count (247). 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.