County profile · EPA SDWIS + UCMR5
Jefferson Davis Parish, Louisiana
9 SDWIS-listed public water systems serve 39,880 people in Jefferson Davis Parish. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.
- 9
- SDWIS water systems Smaller third of counties
- 293
- Total violations Lower third of counties
- 100.0%
- SDWIS systems w/ a violation Middle third of counties
- 0.0%
- UCMR5 PFAS rate (6 tested) Lower third of counties with tests
SDWIS compliance plate
Sheet LA053 · Jefferson Davis Parish 9 sys · 293 viol · #1116/3254
VIOL-SEVERE · HEALTH-MID · RANK-UPPER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-TINY · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-MID 40.6% health
- RANK-UPPER #1116/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 100%
- SYS-TINY 9 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Jefferson Parish (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Jefferson Davis Parish ranks #1,116 of 3,254 counties by people served, and #32 of 64 counties in Louisiana. See methodology · corpus placement.
Jefferson Davis 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 40.6% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,116 of 3,254 · #32 of 64 in Louisiana.
Flagged-rate neighbourhood around Jefferson Davis Parish
Lowest/highest poles plus in-state counties nearest Jefferson Davis Parish on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| City of Jennings Water System | 9,837 | 31 | Clean |
| Jeff Davis Water and Sewer Commission 1 | 9,780 | 31 | Clean |
| Jeff Davis Central Waterworks District | 5,709 | 1 | Clean |
| Town of Welsh Water System | 4,311 | 29 | Clean |
| Jeff Davis Water District 4 | 4,194 | 8 | Clean |
| Town of Lake Arthur Water System | 2,706 | 13 | Clean |
| American Dream RV Park Water System | 1,605 | 6 | - |
| Town of Elton Water System | 1,512 | 119 | - |
| Village of Fenton Water System | 226 | 55 | - |
Compare beyond Louisiana
Mid-flagged peers for Jefferson Davis Parish
Cross-state counties nearest Jefferson Davis Parish on flagged-system share (100.0%) and cumulative violation count (293). 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. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.