Decatur County, Iowa
SDWIS compliance plate
Sheet IA053 · Decatur County 6 sys · 574 viol · #845/3254
VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-MID · SRC-SW · SYS-TINY · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-LOW 18.8% health
- RANK-UPPER #845/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-MID 33.3% detect
- SRC-SW SW lead 100%
- SYS-TINY 6 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Pottawattamie County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Decatur County ranks #845 of 3,254 counties by people served, and #11 of 99 counties in Iowa. See methodology · corpus placement.
Decatur 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 18.8% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 33.3% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #845 of 3,254 · #11 of 99 in Iowa.
Flagged-rate neighbourhood around Decatur County
Lowest/highest poles plus in-state counties nearest Decatur County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Rathbun Regional Water Assn (Rathbun) | 33,000 | 200 | Clean |
| Sirwa #2 (Creston) | 20,793 | 49 | Clean |
| Lamoni Municipal Utilities | 2,104 | 154 | - |
| Leon Water Supply | 1,830 | 122 | - |
| Sirwa #3 (Leon) | 1,373 | 21 | - |
| Garden Grove Water Supply | 179 | 28 | Detected |
Compare beyond Iowa
Mid-flagged peers for Decatur County
Cross-state counties nearest Decatur County on flagged-system share (100.0%) and cumulative violation count (574). 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.