Lake County, South Dakota
SDWIS compliance plate
Sheet SD079 · Lake County 5 sys · 683 viol · #2372/3254
VIOL-SEVERE · HEALTH-LOW · RANK-LOWER · BELOW-PEER · PFAS-CLEAN · SRC-GW · SYS-TINY · BOOK-FULL
- VIOL-SEVERE 80.0% flagged
- HEALTH-LOW 6.3% health
- RANK-LOWER #2372/3254
- BELOW-PEER 6.3 pp cleaner
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 100%
- SYS-TINY 5 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Lawrence County (+ 6.3 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Lake County ranks #2,372 of 3,254 counties by people served, and #19 of 65 counties in South Dakota. See methodology · corpus placement.
Lake County standing, lower-flagged corpus third
Flagged-system rate 80.0% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 6.3% 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 #2,372 of 3,254 · #19 of 65 in South Dakota.
Flagged-rate neighbourhood around Lake County
Lowest/highest poles plus in-state counties nearest Lake County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Madison | 6,191 | 86 | Clean |
| Kingbrook III Rural Water System | 2,888 | 0 | - |
| Chester Sanitary District | 363 | 122 | - |
| Wentworth | 181 | 70 | - |
| Ramona | 159 | 405 | - |
Compare beyond South Dakota
Lower-flagged peers for Lake County
Cross-state counties nearest Lake County on flagged-system share (80.0%) and cumulative violation count (683). 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.