PlainWater

Tama County, Iowa

SDWIS compliance plate

Sheet IA171 · Tama County 13 sys · 733 viol · #1548/3254

VIOL-SEVERE · HEALTH-LOW · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 10.6% health
  • RANK-MID #1548/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-SMALL 13 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Pottawattamie County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Tama County ranks #1,548 of 3,254 counties by people served, and #26 of 99 counties in Iowa. See methodology · corpus placement.

Tama 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 10.6% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,548 of 3,254 · #26 of 99 in Iowa.

Flagged-rate neighbourhood around Tama County

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

0% 20% 40% 60% 80% 100% Mahaska · lowest Ringgold · highest Decatur · near Des Moines · near 75% 100% 100% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
Poweshiek Water Association 13,920 60 Clean
Tama Water Supply 3,130 31 -
Toledo Water Supply 2,399 102 -
Traer Municipal Water Plant 1,583 43 -
Dysart Water Supply 1,281 19 -
Iowa Premium LLC 841 13 Clean
Gladbrook Water Supply 799 48 -
Garwin Water Supply 481 11 -
Chelsea Water Supply 229 53 -
Clutier Water Supply 213 119 -
Montour Water Supply 203 21 -
Elberon Water Supply 184 174 -
Traer Golf & Country Club 42 39 -

Compare beyond Iowa

Mid-flagged peers for Tama County

Cross-state counties nearest Tama County on flagged-system share (100.0%) and cumulative violation count (733). 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.