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Counties → Iowa

County profile · EPA SDWIS + UCMR5

Webster County, Iowa

30 SDWIS-listed public water systems serve 32,620 people in Webster County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.

30
SDWIS water systems Middle third of counties
2,274
Total violations Middle third of counties
93.3%
SDWIS systems w/ a violation Middle third of counties
0.0%
UCMR5 PFAS rate (1 tested) Lower third of counties with tests

SDWIS compliance plate

Sheet IA187 · Webster County 30 sys · 2,274 viol · #1292/3254

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

  • VIOL-SEVERE 93.3% flagged
  • HEALTH-LOW 12.4% health
  • RANK-UPPER #1292/3254
  • PHOTO-FINISH ±0.4 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-SMALL 30 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Sioux County (+ 0.4 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Webster County ranks #1,292 of 3,254 counties by people served, and #22 of 99 counties in Iowa. See methodology · corpus placement.

Webster County standing, mid-flagged corpus third

Flagged-system rate 93.3% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 12.4% 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 #1,292 of 3,254 · #22 of 99 in Iowa.

Flagged-rate neighbourhood around Webster County

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

0% 20% 40% 60% 80% 100% Mahaska · lowest Webster · this county Butler · near Ringgold · highest 75% 92.9% 93.3% 93.8% 93.8% 93.8% 100%

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

Water Systems

System Name Population Violations PFAS
Fort Dodge Water Supply 25,874 80 Clean
Gowrie Muni Utilities Water Dept 954 18 -
Dayton Municipal Water Supply 772 35 -
Badger Water Supply 561 49 -
Otho Water Supply 431 44 -
Palace Park Mhc 426 3 -
Lehigh Water Supply 395 129 -
Duncombe Water Supply 384 14 -
Callender Water Supply 371 95 -
Harcourt Water Supply 265 66 -
Kennedy Mem Pk-Webster Conserv 210 9 -
Barnum Water Supply 175 51 -
Deerwood Estates Utilities 175 38 -
Moorland Water Supply 168 132 -
Community Orchard 154 8 -
Clare Water Department 136 55 -
Lakewood Utilities 135 241 -
Vincent Water Supply 130 23 -
Koch Fertilizer Ft Dodge LLC 127 1 -
Lizard Creek Ranch 125 107 -
Woodland Acres 110 313 -
Frontier Village 108 0 -
Lakeside Municipal Golf 105 42 -
New Cooperative, Inc (Roelyn) 80 195 -
Deer Creek Subdivision (Fort Dodge) 55 40 -
Becker Drive Road & Well, LLC 50 35 -
Timberlane Water Association 48 212 -
North Coalville Water Works 43 0 -
Central Water Works 27 223 -
Fort Dodge Asphalt 26 16 -

Compare beyond Iowa

Mid-flagged peers for Webster County

Cross-state counties nearest Webster County on flagged-system share (93.3%) and cumulative violation count (2,274). 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

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

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. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.