Brown County, South Dakota
SDWIS compliance plate
Sheet SD013 · Brown County 21 sys · 1,750 viol · #1153/3254
VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-HIGH · SRC-SW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-LOW 13.5% health
- RANK-UPPER #1153/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-HIGH 50.0% detect
- SRC-SW SW lead 76%
- SYS-SMALL 21 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Lincoln County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Brown County ranks #1,153 of 3,254 counties by people served, and #4 of 65 counties in South Dakota. See methodology · corpus placement.
Brown 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 13.5% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 50.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #1,153 of 3,254 · #4 of 65 in South Dakota.
Flagged-rate neighbourhood around Brown County
Lowest/highest poles plus in-state counties nearest Brown County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Aberdeen | 27,989 | 91 | Detected |
| Brown-Day-Marshall RWS | 5,673 | 6 | Clean |
| Groton | 1,380 | 14 | - |
| Warner | 485 | 29 | - |
| Lakeside Estates | 460 | 65 | - |
| Country Village Park | 340 | 72 | - |
| Prairiewood Property Owners | 300 | 20 | - |
| Frederick | 215 | 32 | - |
| Hecla | 208 | 62 | - |
| Jobee Acres | 108 | 82 | - |
| Claremont | 108 | 88 | - |
| Pleasant Valley Estates | 105 | 43 | - |
| Long Lake Colony | 100 | 230 | - |
| Hutterville Colony South Dakota Inc | 90 | 410 | - |
| Northwood First Subdivision | 90 | 9 | - |
| Westport Sanitary District | 88 | 27 | - |
| Rolling Meadows | 83 | 30 | - |
| The Meadows | 80 | 285 | - |
| Richmond Heights Homeowners Associat | 67 | 36 | - |
| Stratford | 57 | 89 | - |
| Green Acres Association | 55 | 30 | - |
Compare beyond South Dakota
Mid-flagged peers for Brown County
Cross-state counties nearest Brown County on flagged-system share (100.0%) and cumulative violation count (1,750). 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.