Kansas County Water Quality Reports

Allen County, KS: Lead Above EPA Limits — 74/100 (2026)

2026 report: Allen County, KS scores 74/100 (Grade B). 5 ZIP codes analyzed. 37 EPA violations found. Lead above EPA limits. Free report with contaminan...

Anderson County, KS: 3 Health Violations — 73/100 (2026)

2026 report: Anderson County, KS scores 73/100 (Grade B). 7 ZIP codes analyzed. 20 EPA violations found. Free report with contaminant data and filter pi...

Atchison County, KS: 12 Violations — 65/100 (2026)

2026 report: Atchison County, KS scores 65/100 (Grade C). 5 ZIP codes analyzed. 12 EPA violations found. Free report with contaminant data and filter pi...

Barber County, KS: Lead Above EPA Limits — 67/100 (2026)

2026 report: Barber County, KS scores 67/100 (Grade C). 9 ZIP codes analyzed. 26 EPA violations found. Lead above EPA limits. Free report with contamina...

Barton County, KS: 6 Health Violations — 60/100 (2026)

2026 report: Barton County, KS scores 60/100 (Grade C). 6 ZIP codes analyzed. 73 EPA violations found. Free report with contaminant data and filter picks.

Bourbon County, KS: 4 Health Violations — 68/100 (2026)

2026 report: Bourbon County, KS scores 68/100 (Grade C). 6 ZIP codes analyzed. 21 EPA violations found. Free report with contaminant data and filter picks.

Brown County, KS: 4 Health Violations — 61/100 (2026)

2026 report: Brown County, KS scores 61/100 (Grade C). 7 ZIP codes analyzed. 20 EPA violations found. Free report with contaminant data and filter picks.

Butler County, KS: 7 Health Violations — 75/100 (2026)

2026 report: Butler County, KS scores 75/100 (Grade B). 16 ZIP codes analyzed. 112 EPA violations found. Free report with contaminant data and filter pi...

Chase County, KS: 6 Health Violations — 79/100 (2026)

2026 report: Chase County, KS scores 79/100 (Grade B). 5 ZIP codes analyzed. 45 EPA violations found. Free report with contaminant data and filter picks.

Chautauqua County, KS: 10 Health Violations — 64/100 (2026)

2026 report: Chautauqua County, KS scores 64/100 (Grade C). 5 ZIP codes analyzed. 34 EPA violations found. Free report with contaminant data and filter ...

Cherokee County, KS: 7 Health Violations — 71/100 (2026)

2026 report: Cherokee County, KS scores 71/100 (Grade B). 11 ZIP codes analyzed. 35 EPA violations found. Free report with contaminant data and filter p...

Cheyenne County, KS: 1 Violation — 49/100 (2026)

2026 report: Cheyenne County, KS scores 49/100 (Grade D). 3 ZIP codes analyzed. 1 EPA violation found. Free report with contaminant data and filter picks.

Clark County, KS: 1 Health Violation — 71/100 (2026)

2026 report: Clark County, KS scores 71/100 (Grade B). 3 ZIP codes analyzed. 15 EPA violations found. Free report with contaminant data and filter picks.

Clay County, KS: 18 Violations — 65/100 (2026)

2026 report: Clay County, KS scores 65/100 (Grade C). 5 ZIP codes analyzed. 18 EPA violations found. Free report with contaminant data and filter picks.

Cloud County, KS: 15 Violations — 64/100 (2026)

2026 report: Cloud County, KS scores 64/100 (Grade C). 6 ZIP codes analyzed. 15 EPA violations found. Free report with contaminant data and filter picks.

Coffey County, KS: 9 Violations — 81/100 (2026)

2026 report: Coffey County, KS scores 81/100 (Grade B). 4 ZIP codes analyzed. 9 EPA violations found. Free report with contaminant data and filter picks.

Comanche County, KS: 1 Health Violation — 72/100 (2026)

2026 report: Comanche County, KS scores 72/100 (Grade B). 3 ZIP codes analyzed. 3 EPA violations found. Free report with contaminant data and filter picks.

Cowley County, KS: 33 Violations — 75/100 (2026)

2026 report: Cowley County, KS scores 75/100 (Grade B). 9 ZIP codes analyzed. 33 EPA violations found. Free report with contaminant data and filter picks.

Crawford County, KS: 10 Health Violations — 70/100 (2026)

2026 report: Crawford County, KS scores 70/100 (Grade B). 12 ZIP codes analyzed. 48 EPA violations found. Free report with contaminant data and filter p...

Decatur County, KS: 7 Violations — 57/100 (2026)

2026 report: Decatur County, KS scores 57/100 (Grade C). 4 ZIP codes analyzed. 7 EPA violations found. Free report with contaminant data and filter picks.

Dickinson County, KS: 17 Health Violations — 52/100 (2026)

2026 report: Dickinson County, KS scores 52/100 (Grade D). 11 ZIP codes analyzed. 43 EPA violations found. Free report with contaminant data and filter ...

Doniphan County, KS: 10 Health Violations — 67/100 (2026)

2026 report: Doniphan County, KS scores 67/100 (Grade C). 7 ZIP codes analyzed. 41 EPA violations found. Free report with contaminant data and filter pi...

Douglas County, KS: 18 Violations — 62/100 (2026)

2026 report: Douglas County, KS scores 62/100 (Grade C). 7 ZIP codes analyzed. 18 EPA violations found. Free report with contaminant data and filter picks.

Edwards County, KS: 4 Health Violations — 71/100 (2026)

2026 report: Edwards County, KS scores 71/100 (Grade B). 5 ZIP codes analyzed. 19 EPA violations found. Free report with contaminant data and filter picks.

Elk County, KS: 10 Health Violations — 72/100 (2026)

2026 report: Elk County, KS scores 72/100 (Grade B). 4 ZIP codes analyzed. 28 EPA violations found. Free report with contaminant data and filter picks.

Ellis County, KS: 28 Violations — 51/100 (2026)

2026 report: Ellis County, KS scores 51/100 (Grade D). 7 ZIP codes analyzed. 28 EPA violations found. Free report with contaminant data and filter picks.

Ellsworth County, KS: 7 Health Violations — 61/100 (2026)

2026 report: Ellsworth County, KS scores 61/100 (Grade C). 5 ZIP codes analyzed. 23 EPA violations found. Free report with contaminant data and filter p...

Finney County, KS: 2 Violations — 58/100 (2026)

2026 report: Finney County, KS scores 58/100 (Grade C). 3 ZIP codes analyzed. 2 EPA violations found. Free report with contaminant data and filter picks.

Ford County, KS: 20 Health Violations — 56/100 (2026)

2026 report: Ford County, KS scores 56/100 (Grade C). 6 ZIP codes analyzed. 40 EPA violations found. Free report with contaminant data and filter picks.

Franklin County, KS: 11 Health Violations — 76/100 (2026)

2026 report: Franklin County, KS scores 76/100 (Grade B). 8 ZIP codes analyzed. 42 EPA violations found. Free report with contaminant data and filter pi...

Geary County, KS: 6 Health Violations — 62/100 (2026)

2026 report: Geary County, KS scores 62/100 (Grade C). 3 ZIP codes analyzed. 22 EPA violations found. Free report with contaminant data and filter picks.

Gove County, KS: 4 Health Violations — 58/100 (2026)

2026 report: Gove County, KS scores 58/100 (Grade C). 5 ZIP codes analyzed. 11 EPA violations found. Free report with contaminant data and filter picks.

Graham County, KS: 2 Health Violations — 54/100 (2026)

2026 report: Graham County, KS scores 54/100 (Grade D). 4 ZIP codes analyzed. 17 EPA violations found. Free report with contaminant data and filter picks.

Grant County, KS: High Radon Risk — 70/100 (2026)

2026 report: Grant County, KS scores 70/100 (Grade B). 1 ZIP code analyzed. No EPA violations. Free report with contaminant data and filter picks.

Gray County, KS: 17 Health Violations — 55/100 (2026)

2026 report: Gray County, KS scores 55/100 (Grade C). 5 ZIP codes analyzed. 48 EPA violations found. Free report with contaminant data and filter picks.

Greeley County, KS: 10 Health Violations — 22/100 (2026)

2026 report: Greeley County, KS scores 22/100 (Grade F). 1 ZIP code analyzed. 19 EPA violations found. Free report with contaminant data and filter picks.

Greenwood County, KS: 14 Health Violations — 64/100 (2026)

2026 report: Greenwood County, KS scores 64/100 (Grade C). 11 ZIP codes analyzed. 53 EPA violations found. Free report with contaminant data and filter ...

Hamilton County, KS: 1 Health Violation — 61/100 (2026)

2026 report: Hamilton County, KS scores 61/100 (Grade C). 3 ZIP codes analyzed. 18 EPA violations found. Free report with contaminant data and filter pi...

Harper County, KS: 2 Health Violations — 71/100 (2026)

2026 report: Harper County, KS scores 71/100 (Grade B). 7 ZIP codes analyzed. 29 EPA violations found. Free report with contaminant data and filter picks.

Harvey County, KS: 19 Violations — 75/100 (2026)

2026 report: Harvey County, KS scores 75/100 (Grade B). 7 ZIP codes analyzed. 19 EPA violations found. Free report with contaminant data and filter picks.

Haskell County, KS: 7 Health Violations — 48/100 (2026)

2026 report: Haskell County, KS scores 48/100 (Grade D). 2 ZIP codes analyzed. 12 EPA violations found. Free report with contaminant data and filter picks.

Hodgeman County, KS: 4 Violations — 62/100 (2026)

2026 report: Hodgeman County, KS scores 62/100 (Grade C). 2 ZIP codes analyzed. 4 EPA violations found. Free report with contaminant data and filter picks.

Jackson County, KS: 17 Violations — 64/100 (2026)

2026 report: Jackson County, KS scores 64/100 (Grade C). 8 ZIP codes analyzed. 17 EPA violations found. Free report with contaminant data and filter picks.

Jefferson County, KS: 2 Health Violations — 72/100 (2026)

2026 report: Jefferson County, KS scores 72/100 (Grade B). 8 ZIP codes analyzed. 19 EPA violations found. Free report with contaminant data and filter p...

Jewell County, KS: 34 Health Violations — 56/100 (2026)

2026 report: Jewell County, KS scores 56/100 (Grade C). 6 ZIP codes analyzed. 63 EPA violations found. Free report with contaminant data and filter picks.

Johnson County, KS: 16 Violations — 47/100 (2026)

2026 report: Johnson County, KS scores 47/100 (Grade D). 47 ZIP codes analyzed. 16 EPA violations found. Free report with contaminant data and filter pi...

Kearny County, KS: 3 Health Violations — 58/100 (2026)

2026 report: Kearny County, KS scores 58/100 (Grade C). 2 ZIP codes analyzed. 10 EPA violations found. Free report with contaminant data and filter picks.

Kingman County, KS: 1 Health Violation — 63/100 (2026)

2026 report: Kingman County, KS scores 63/100 (Grade C). 8 ZIP codes analyzed. 21 EPA violations found. Free report with contaminant data and filter picks.

Kiowa County, KS: 1 Violation — 65/100 (2026)

2026 report: Kiowa County, KS scores 65/100 (Grade C). 3 ZIP codes analyzed. 1 EPA violation found. Free report with contaminant data and filter picks.

Labette County, KS: 11 Health Violations — 69/100 (2026)

2026 report: Labette County, KS scores 69/100 (Grade C). 9 ZIP codes analyzed. 53 EPA violations found. Free report with contaminant data and filter picks.

Lane County, KS: 4 Violations — 63/100 (2026)

2026 report: Lane County, KS scores 63/100 (Grade C). 2 ZIP codes analyzed. 4 EPA violations found. Free report with contaminant data and filter picks.

Leavenworth County, KS: 1 Health Violation — 61/100 (2026)

2026 report: Leavenworth County, KS scores 61/100 (Grade C). 9 ZIP codes analyzed. 45 EPA violations found. Free report with contaminant data and filter...

Lincoln County, KS: 18 Health Violations — 51/100 (2026)

2026 report: Lincoln County, KS scores 51/100 (Grade D). 4 ZIP codes analyzed. 32 EPA violations found. Free report with contaminant data and filter picks.

Linn County, KS: 5 Health Violations — 76/100 (2026)

2026 report: Linn County, KS scores 76/100 (Grade B). 6 ZIP codes analyzed. 28 EPA violations found. Free report with contaminant data and filter picks.

Logan County, KS: 13 Health Violations — 46/100 (2026)

2026 report: Logan County, KS scores 46/100 (Grade D). 3 ZIP codes analyzed. 14 EPA violations found. Free report with contaminant data and filter picks.

Lyon County, KS: 4 Health Violations — 80/100 (2026)

2026 report: Lyon County, KS scores 80/100 (Grade B). 7 ZIP codes analyzed. 22 EPA violations found. Free report with contaminant data and filter picks.

Marion County, KS: 6 Health Violations — 60/100 (2026)

2026 report: Marion County, KS scores 60/100 (Grade C). 10 ZIP codes analyzed. 45 EPA violations found. Free report with contaminant data and filter picks.

Marshall County, KS: 5 Health Violations — 57/100 (2026)

2026 report: Marshall County, KS scores 57/100 (Grade C). 12 ZIP codes analyzed. 37 EPA violations found. Free report with contaminant data and filter p...

McPherson County, KS: 15 Violations — 65/100 (2026)

2026 report: McPherson County, KS scores 65/100 (Grade C). 9 ZIP codes analyzed. 15 EPA violations found. Free report with contaminant data and filter p...

Meade County, KS: 9 Violations — 64/100 (2026)

2026 report: Meade County, KS scores 64/100 (Grade C). 3 ZIP codes analyzed. 9 EPA violations found. Free report with contaminant data and filter picks.

Miami County, KS: 10 Health Violations — 78/100 (2026)

2026 report: Miami County, KS scores 78/100 (Grade B). 5 ZIP codes analyzed. 26 EPA violations found. Free report with contaminant data and filter picks.

Mitchell County, KS: 78 Health Violations — 52/100 (2026)

2026 report: Mitchell County, KS scores 52/100 (Grade D). 6 ZIP codes analyzed. 100 EPA violations found. Free report with contaminant data and filter p...

Montgomery County, KS: 20 Health Violations — 67/100 (2026)

2026 report: Montgomery County, KS scores 67/100 (Grade C). 11 ZIP codes analyzed. 88 EPA violations found. Free report with contaminant data and filter...

Morris County, KS: 7 Violations — 81/100 (2026)

2026 report: Morris County, KS scores 81/100 (Grade B). 4 ZIP codes analyzed. 7 EPA violations found. Free report with contaminant data and filter picks.

Morton County, KS Water Safety: 73/100 (2026)

2026 report: Morton County, KS scores 73/100 (Grade B). 3 ZIP codes analyzed. No EPA violations. Free report with contaminant data and filter picks.

Nemaha County, KS: 1 Health Violation — 61/100 (2026)

2026 report: Nemaha County, KS scores 61/100 (Grade C). 8 ZIP codes analyzed. 18 EPA violations found. Free report with contaminant data and filter picks.

Neosho County, KS: 1 Health Violation — 68/100 (2026)

2026 report: Neosho County, KS scores 68/100 (Grade C). 8 ZIP codes analyzed. 72 EPA violations found. Free report with contaminant data and filter picks.

Ness County, KS: 22 Violations — 60/100 (2026)

2026 report: Ness County, KS scores 60/100 (Grade C). 7 ZIP codes analyzed. 22 EPA violations found. Free report with contaminant data and filter picks.

Norton County, KS: 8 Health Violations — 62/100 (2026)

2026 report: Norton County, KS scores 62/100 (Grade C). 4 ZIP codes analyzed. 21 EPA violations found. Free report with contaminant data and filter picks.

Osage County, KS: 8 Health Violations — 75/100 (2026)

2026 report: Osage County, KS scores 75/100 (Grade B). 9 ZIP codes analyzed. 62 EPA violations found. Free report with contaminant data and filter picks.

Osborne County, KS: 16 Health Violations — 55/100 (2026)

2026 report: Osborne County, KS scores 55/100 (Grade C). 6 ZIP codes analyzed. 40 EPA violations found. Free report with contaminant data and filter picks.

Ottawa County, KS: 1 Health Violation — 58/100 (2026)

2026 report: Ottawa County, KS scores 58/100 (Grade C). 5 ZIP codes analyzed. 48 EPA violations found. Free report with contaminant data and filter picks.

Pawnee County, KS: 1 Health Violation — 63/100 (2026)

2026 report: Pawnee County, KS scores 63/100 (Grade C). 3 ZIP codes analyzed. 16 EPA violations found. Free report with contaminant data and filter picks.

Phillips County, KS: 2 Health Violations — 64/100 (2026)

2026 report: Phillips County, KS scores 64/100 (Grade C). 7 ZIP codes analyzed. 19 EPA violations found. Free report with contaminant data and filter pi...

Pottawatomie County, KS: 1 Health Violation — 61/100 (2026)

2026 report: Pottawatomie County, KS scores 61/100 (Grade C). 9 ZIP codes analyzed. 15 EPA violations found. Free report with contaminant data and filte...

Pratt County, KS: 20 Health Violations — 46/100 (2026)

2026 report: Pratt County, KS scores 46/100 (Grade D). 5 ZIP codes analyzed. 60 EPA violations found. Free report with contaminant data and filter picks.

Rawlins County, KS: 2 Violations — 57/100 (2026)

2026 report: Rawlins County, KS scores 57/100 (Grade C). 3 ZIP codes analyzed. 2 EPA violations found. Free report with contaminant data and filter picks.

Reno County, KS: 66 Health Violations — 70/100 (2026)

2026 report: Reno County, KS scores 70/100 (Grade B). 14 ZIP codes analyzed. 173 EPA violations found. Free report with contaminant data and filter picks.

Republic County, KS: 19 Health Violations — 55/100 (2026)

2026 report: Republic County, KS scores 55/100 (Grade C). 10 ZIP codes analyzed. 60 EPA violations found. Free report with contaminant data and filter p...

Rice County, KS: 7 Health Violations — 60/100 (2026)

2026 report: Rice County, KS scores 60/100 (Grade C). 8 ZIP codes analyzed. 35 EPA violations found. Free report with contaminant data and filter picks.

Riley County, KS: 17 Violations — 61/100 (2026)

2026 report: Riley County, KS scores 61/100 (Grade C). 8 ZIP codes analyzed. 17 EPA violations found. Free report with contaminant data and filter picks.

Rooks County, KS: 28 Health Violations — 40/100 (2026)

2026 report: Rooks County, KS scores 40/100 (Grade D). 5 ZIP codes analyzed. 44 EPA violations found. Free report with contaminant data and filter picks.

Rush County, KS: 18 Health Violations — 49/100 (2026)

2026 report: Rush County, KS scores 49/100 (Grade D). 8 ZIP codes analyzed. 42 EPA violations found. Free report with contaminant data and filter picks.

Russell County, KS: 8 Health Violations — 61/100 (2026)

2026 report: Russell County, KS scores 61/100 (Grade C). 8 ZIP codes analyzed. 50 EPA violations found. Free report with contaminant data and filter picks.

Saline County, KS: 2 Health Violations — 64/100 (2026)

2026 report: Saline County, KS scores 64/100 (Grade C). 6 ZIP codes analyzed. 139 EPA violations found. Free report with contaminant data and filter picks.

Scott County, KS: 4 Violations — 63/100 (2026)

2026 report: Scott County, KS scores 63/100 (Grade C). 1 ZIP code analyzed. 4 EPA violations found. Free report with contaminant data and filter picks.

Sedgwick County, KS: 1 Health Violation — 77/100 (2026)

2026 report: Sedgwick County, KS scores 77/100 (Grade B). 50 ZIP codes analyzed. 72 EPA violations found. Free report with contaminant data and filter p...

Seward County, KS: 13 Violations — 78/100 (2026)

2026 report: Seward County, KS scores 78/100 (Grade B). 3 ZIP codes analyzed. 13 EPA violations found. Free report with contaminant data and filter picks.

Shawnee County, KS: 160 Health Violations — 70/100 (2026)

2026 report: Shawnee County, KS scores 70/100 (Grade B). 39 ZIP codes analyzed. 298 EPA violations found. Free report with contaminant data and filter p...

Sheridan County, KS: 2 Violations — 65/100 (2026)

2026 report: Sheridan County, KS scores 65/100 (Grade C). 2 ZIP codes analyzed. 2 EPA violations found. Free report with contaminant data and filter picks.

Sherman County, KS: 15 Violations — 60/100 (2026)

2026 report: Sherman County, KS scores 60/100 (Grade C). 2 ZIP codes analyzed. 15 EPA violations found. Free report with contaminant data and filter picks.

Smith County, KS: Lead Above EPA Limits — 51/100 (2026)

2026 report: Smith County, KS scores 51/100 (Grade D). 5 ZIP codes analyzed. 27 EPA violations found. Lead above EPA limits. Free report with contaminan...

St. Louis County, KS: 1 Health Violation — 86/100 (2026)

2026 report: St. Louis County, KS scores 86/100 (Grade A). 1 ZIP code analyzed. 4 EPA violations found. Free report with contaminant data and filter picks.

Stafford County, KS: 1 Health Violation — 66/100 (2026)

2026 report: Stafford County, KS scores 66/100 (Grade C). 4 ZIP codes analyzed. 9 EPA violations found. Free report with contaminant data and filter picks.

Stanton County, KS: 3 Violations — 52/100 (2026)

2026 report: Stanton County, KS scores 52/100 (Grade D). 2 ZIP codes analyzed. 3 EPA violations found. Free report with contaminant data and filter picks.

Stevens County, KS Water Safety: 78/100 (2026)

2026 report: Stevens County, KS scores 78/100 (Grade B). 2 ZIP codes analyzed. No EPA violations. Free report with contaminant data and filter picks.

Sumner County, KS: 15 Health Violations — 73/100 (2026)

2026 report: Sumner County, KS scores 73/100 (Grade B). 10 ZIP codes analyzed. 47 EPA violations found. Free report with contaminant data and filter picks.

Thomas County, KS: 4 Violations — 53/100 (2026)

2026 report: Thomas County, KS scores 53/100 (Grade D). 6 ZIP codes analyzed. 4 EPA violations found. Free report with contaminant data and filter picks.

Trego County, KS: 2 Violations — 57/100 (2026)

2026 report: Trego County, KS scores 57/100 (Grade C). 3 ZIP codes analyzed. 2 EPA violations found. Free report with contaminant data and filter picks.

Wabaunsee County, KS: 8 Health Violations — 71/100 (2026)

2026 report: Wabaunsee County, KS scores 71/100 (Grade B). 8 ZIP codes analyzed. 28 EPA violations found. Free report with contaminant data and filter p...

Wallace County, KS: 6 Violations — 56/100 (2026)

2026 report: Wallace County, KS scores 56/100 (Grade C). 3 ZIP codes analyzed. 6 EPA violations found. Free report with contaminant data and filter picks.

Washington County, KS: 3 Health Violations — 62/100 (2026)

2026 report: Washington County, KS scores 62/100 (Grade C). 11 ZIP codes analyzed. 20 EPA violations found. Free report with contaminant data and filter...

Wichita County, KS: 1 Violation — 52/100 (2026)

2026 report: Wichita County, KS scores 52/100 (Grade D). 2 ZIP codes analyzed. 1 EPA violation found. Free report with contaminant data and filter picks.

Wilson County, KS: 12 Violations — 74/100 (2026)

2026 report: Wilson County, KS scores 74/100 (Grade B). 4 ZIP codes analyzed. 12 EPA violations found. Free report with contaminant data and filter picks.

Woodson County, KS: 30 Health Violations — 60/100 (2026)

2026 report: Woodson County, KS scores 60/100 (Grade C). 4 ZIP codes analyzed. 43 EPA violations found. Free report with contaminant data and filter picks.

Wyandotte County, KS: 18 Violations — 62/100 (2026)

2026 report: Wyandotte County, KS scores 62/100 (Grade C). 16 ZIP codes analyzed. 18 EPA violations found. Free report with contaminant data and filter ...