Massac County, Illinois
SDWIS compliance plate
Sheet IL127 · Massac County 6 sys · 404 viol · #2053/3254
VIOL-SEVERE · HEALTH-LOW · RANK-LOWER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-TINY · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-LOW 6.2% health
- RANK-LOWER #2053/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 100%
- SYS-TINY 6 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Washington County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Massac County ranks #2,053 of 3,254 counties by people served, and #65 of 102 counties in Illinois. See methodology · corpus placement.
Massac 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 6.2% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #2,053 of 3,254 · #65 of 102 in Illinois.
Flagged-rate neighbourhood around Massac County
Lowest/highest poles plus in-state counties nearest Massac County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Metropolis | 6,309 | 133 | Clean |
| Fort Massac Pwd | 6,290 | 31 | Clean |
| Brookport | 730 | 18 | - |
| Solstice Advanced Materials US, Inc | 470 | 174 | - |
| Joppa | 445 | 33 | - |
| Super 8 | 126 | 15 | - |
Compare beyond Illinois
Mid-flagged peers for Massac County
Cross-state counties nearest Massac County on flagged-system share (100.0%) and cumulative violation count (404). 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.