Roberts County, South Dakota
SDWIS compliance plate
Sheet SD109 · Roberts County 11 sys · 1,527 viol · #2678/3254
VIOL-SEVERE · HEALTH-LOW · RANK-BOTTOM · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-SMALL · BOOK-MOST
- VIOL-SEVERE 100.0% flagged
- HEALTH-LOW 9.5% health
- RANK-BOTTOM #2678/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-NONE No UCMR5 set
- SRC-GW GW lead 100%
- SYS-SMALL 11 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, Roberts County ranks #2,678 of 3,254 counties by people served, and #29 of 65 counties in South Dakota. See methodology · corpus placement.
Roberts 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 9.5% is health-based share at or below the lower third (≤ 10.3%) . No UCMR5 tests in this extract for Roberts County . Population served ranks #2,678 of 3,254 · #29 of 65 in South Dakota.
Flagged-rate neighbourhood around Roberts County
Lowest/highest poles plus in-state counties nearest Roberts County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Sisseton | 2,479 | 13 | - |
| DOT Rest Area 119 - Glacial Lakes | 1,000 | 5 | - |
| DOT Rest Area - Whetstone Valley | 1,000 | 4 | - |
| Wilmot | 432 | 122 | - |
| Rosholt | 379 | 400 | - |
| Summit | 288 | 218 | - |
| New Effington | 247 | 50 | - |
| Peever | 164 | 28 | - |
| White Rock Colony | 108 | 523 | - |
| Schmidt's Landing | 75 | 49 | - |
| Corona | 69 | 115 | - |
Compare beyond South Dakota
Mid-flagged peers for Roberts County
Cross-state counties nearest Roberts County on flagged-system share (100.0%) and cumulative violation count (1,527). 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.