County profile · EPA SDWIS + UCMR5
Jefferson County, Indiana
11 SDWIS-listed public water systems serve 34,443 people in Jefferson County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.
- 11
- SDWIS water systems Smaller third of counties
- 496
- Total violations Lower third of counties
- 100.0%
- SDWIS systems w/ a violation Middle third of counties
- 75.0%
- UCMR5 PFAS rate (4 tested) Upper third of counties with tests
SDWIS compliance plate
Sheet IN077 · Jefferson County 11 sys · 496 viol · #1237/3254
VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-LOW 11.9% health
- RANK-UPPER #1237/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-HIGH 75.0% detect
- SRC-GW GW lead 100%
- SYS-SMALL 11 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Vanderburgh County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Jefferson County ranks #1,237 of 3,254 counties by people served, and #35 of 92 counties in Indiana. See methodology · corpus placement.
Jefferson 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 11.9% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 75.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #1,237 of 3,254 · #35 of 92 in Indiana.
Flagged-rate neighbourhood around Jefferson County
Lowest/highest poles plus in-state counties nearest Jefferson County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Madison Water Department | 15,323 | 154 | Detected |
| Kent Water Company | 6,750 | 10 | Clean |
| Canaan Utilities | 4,428 | 12 | Detected |
| Hanover Water Department | 2,597 | 25 | Detected |
| Rykers Ridge Water Company | 2,050 | 39 | - |
| Madison State Hospital | 1,375 | 137 | - |
| Hanover College | 1,250 | 14 | - |
| Indiana-Kentucky Electric Corporation | 320 | 11 | - |
| Sandy Beach Marina | 170 | 44 | - |
| Route 56 Campground | 100 | 17 | - |
| Sandy Beach Marina | 80 | 33 | - |
Compare beyond Indiana
Mid-flagged peers for Jefferson County
Cross-state counties nearest Jefferson County on flagged-system share (100.0%) and cumulative violation count (496). 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.