County profile · EPA SDWIS + UCMR5
Madison County, Alabama
9 SDWIS-listed public water systems serve 557,706 people in Madison County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.
- 9
- SDWIS water systems Smaller third of counties
- 1,075
- Total violations Middle third of counties
- 100.0%
- SDWIS systems w/ a violation Middle third of counties
- 87.5%
- UCMR5 PFAS rate (8 tested) Upper third of counties with tests
SDWIS compliance plate
Sheet AL089 · Madison County 9 sys · 1,075 viol · #126/3254
VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-HIGH · SRC-SW · SYS-TINY · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-LOW 18.2% health
- RANK-TOP #126/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-HIGH 87.5% detect
- SRC-SW SW lead 89%
- SYS-TINY 9 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Jefferson County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Madison County ranks #126 of 3,254 counties by people served, and #2 of 67 counties in Alabama. See methodology · corpus placement.
Madison 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 18.2% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 87.5% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #126 of 3,254 · #2 of 67 in Alabama.
Flagged-rate neighbourhood around Madison County
Lowest/highest poles plus in-state counties nearest Madison County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Huntsville Utilities | 262,158 | 1 | Detected |
| Madison County Water Department | 119,100 | 60 | Detected |
| Madison, the W & Ww Board of the City Of | 54,114 | 231 | Detected |
| Harvest-Monrovia Water System | 51,915 | 28 | Detected |
| US Army Garrison-Redstone Arsenal | 44,472 | 474 | Detected |
| Owens Crossroads Water Authority | 11,532 | 38 | Clean |
| Triana Water Works | 7,047 | 194 | Detected |
| New Hope Water System | 6,213 | 15 | Detected |
| Gurley Water System | 1,155 | 34 | - |
Compare beyond Alabama
Mid-flagged peers for Madison County
Cross-state counties nearest Madison County on flagged-system share (100.0%) and cumulative violation count (1,075). 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.