PlainWater

Franklin County, Iowa

SDWIS compliance plate

Sheet IA069 · Franklin County 20 sys · 879 viol · #2324/3254

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

  • VIOL-SEVERE 95.0% flagged
  • HEALTH-LOW 14.8% health
  • RANK-LOWER #2324/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-SMALL 20 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Franklin County ranks #2,324 of 3,254 counties by people served, and #60 of 99 counties in Iowa. See methodology · corpus placement.

Franklin County standing, mid-flagged corpus third

Flagged-system rate 95.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 14.8% 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 #2,324 of 3,254 · #60 of 99 in Iowa.

Flagged-rate neighbourhood around Franklin County

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

0% 20% 40% 60% 80% 100% Mahaska · lowest Winnebago · near Harrison · near Ringgold · highest 75% 94.7% 94.7% 95% 95% 95.3% 100%

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

Water Systems

Compare beyond Iowa

Mid-flagged peers for Franklin County

Cross-state counties nearest Franklin County on flagged-system share (95.0%) and cumulative violation count (879). 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.