Corson County, South Dakota
SDWIS compliance plate
Sheet SD031 · Corson County 3 sys · 453 viol · #3197/3254
VIOL-SEVERE · HEALTH-MID · RANK-BOTTOM · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-TINY · BOOK-MOST
- VIOL-SEVERE 100.0% flagged
- HEALTH-MID 21.4% health
- RANK-BOTTOM #3197/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-NONE No UCMR5 set
- SRC-GW GW lead 67%
- SYS-TINY 3 systems
- BOOK-MOST 6/7 fields
Nearest flagged-rate peer: Brown County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Corson County ranks #3,197 of 3,254 counties by people served, and #56 of 65 counties in South Dakota. See methodology · corpus placement.
Corson 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 21.4% is health-based share in the middle third (≤ 24.5%) . No UCMR5 tests in this extract for Corson County . Population served ranks #3,197 of 3,254 · #56 of 65 in South Dakota.
Flagged-rate neighbourhood around Corson County
Lowest/highest poles plus in-state counties nearest Corson County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| McLaughlin | 569 | 7 | - |
| McIntosh | 111 | 84 | - |
| Morristown | 47 | 362 | - |
Compare beyond South Dakota
Mid-flagged peers for Corson County
Cross-state counties nearest Corson County on flagged-system share (100.0%) and cumulative violation count (453). 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.