PlainWater

Spink County, South Dakota

SDWIS compliance plate

Sheet SD115 · Spink County 10 sys · 1,176 viol · #2943/3254

VIOL-SEVERE · HEALTH-LOW · RANK-BOTTOM · PHOTO-FINISH · PFAS-NONE · SRC-SW · SYS-SMALL · BOOK-MOST

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 6.5% health
  • RANK-BOTTOM #2943/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-NONE No UCMR5 set
  • SRC-SW SW lead 70%
  • SYS-SMALL 10 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, Spink County ranks #2,943 of 3,254 counties by people served, and #37 of 65 counties in South Dakota. See methodology · corpus placement.

Spink 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 6.5% is health-based share at or below the lower third (≤ 10.3%) . No UCMR5 tests in this extract for Spink County . Population served ranks #2,943 of 3,254 · #37 of 65 in South Dakota.

Flagged-rate neighbourhood around Spink County

Lowest/highest poles plus in-state counties nearest Spink County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Shannon · lowest Buffalo · highest Lincoln · near Codington · near 50% 100% 100% 100% 100% 100% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Redfield 2,214 7 -
Tulare 211 65 -
Doland 199 32 -
Mellette 199 38 -
Northville 143 69 -
Conde 142 42 -
Spink Colony 108 230 -
Glendale Colony 95 585 -
Brentford 88 63 -
Camrose Colony 80 45 -

Compare beyond South Dakota

Mid-flagged peers for Spink County

Cross-state counties nearest Spink County on flagged-system share (100.0%) and cumulative violation count (1,176). 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.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

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.