Union Parish, Louisiana
SDWIS compliance plate
Sheet LA111 · Union Parish 20 sys · 9,066 viol · #1288/3254
VIOL-SEVERE · HEALTH-HIGH · RANK-UPPER · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-HIGH 67.0% health
- RANK-UPPER #1288/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-HIGH 100.0% detect
- SRC-GW GW lead 100%
- SYS-SMALL 20 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, Union Parish ranks #1,288 of 3,254 counties by people served, and #37 of 64 counties in Louisiana. See methodology · corpus placement.
Union 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 67.0% 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 #1,288 of 3,254 · #37 of 64 in Louisiana.
Flagged-rate neighbourhood around Union Parish
Lowest/highest poles plus in-state counties nearest Union Parish on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Farmerville Water System | 5,400 | 326 | Detected |
| Darbonne WS South | 3,261 | 301 | - |
| Darbonne WS North | 3,186 | 273 | - |
| Holmesville Water System | 2,406 | 362 | - |
| Point Wilhite WS | 2,235 | 405 | - |
| Bernice Water System | 1,863 | 184 | - |
| Rocky Branch Water System | 1,650 | 293 | - |
| Linville-Haile Water System | 1,635 | 647 | - |
| Union Parish Waterworks District 1 | 1,626 | 939 | - |
| Wards Chapel Water System | 1,620 | 510 | - |
| Marion Water System | 1,512 | 518 | - |
| Sardis Water System | 1,404 | 707 | - |
| Tri-Water System | 1,302 | 503 | - |
| West Sterlington Water System | 1,095 | 247 | - |
| Salem Water System | 753 | 707 | - |
| Junction City Water System | 708 | 31 | - |
| Litroe Water System | 369 | 1,110 | - |
| Corney Water System | 249 | 19 | - |
| Randolph Water System | 249 | 393 | - |
| Downsville Water System | 216 | 591 | - |
Compare beyond Louisiana
Mid-flagged peers for Union Parish
Cross-state counties nearest Union Parish on flagged-system share (100.0%) and cumulative violation count (9,066). 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.