Catahoula Parish, Louisiana
SDWIS compliance plate
Sheet LA025 · Catahoula Parish 7 sys · 485 viol · #2168/3254
VIOL-SEVERE · HEALTH-HIGH · RANK-LOWER · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-TINY · BOOK-MOST
- VIOL-SEVERE 100.0% flagged
- HEALTH-HIGH 50.5% health
- RANK-LOWER #2168/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-NONE No UCMR5 set
- SRC-GW GW lead 100%
- SYS-TINY 7 systems
- BOOK-MOST 6/7 fields
Nearest flagged-rate peer: Jefferson Parish (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Catahoula Parish ranks #2,168 of 3,254 counties by people served, and #59 of 64 counties in Louisiana. See methodology · corpus placement.
Catahoula 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 50.5% is health-based share above the upper third (> 24.5%) . No UCMR5 tests in this extract for Catahoula Parish . Population served ranks #2,168 of 3,254 · #59 of 64 in Louisiana.
Flagged-rate neighbourhood around Catahoula Parish
Lowest/highest poles plus in-state counties nearest Catahoula Parish on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Sandy Lake Water Supply | 3,141 | 20 | - |
| Town of Jonesville Water System | 2,811 | 52 | - |
| Black River Water System | 2,256 | 48 | - |
| Village of Harrisonburg Water System | 1,530 | 197 | - |
| Leland Water System Inc | 1,140 | 66 | - |
| Village of Sicily Island | 930 | 66 | - |
| Maitland Water Works District | 900 | 36 | - |
Compare beyond Louisiana
Mid-flagged peers for Catahoula Parish
Cross-state counties nearest Catahoula Parish on flagged-system share (100.0%) and cumulative violation count (485). 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.