Missouri Water Quality
1,431 water systems serving 5,651,462 people. 22,870 total violations on record.
Safety Grade Distribution
A
497
35%
B
299
21%
C
513
36%
D
77
5%
F
45
3%
1,431
Water Systems
5,651,462
Population Served
22,870
Total Violations
3,537
Health-Based
Most Contaminated Systems
AIRPORT VILLAGE MHP
42 served474 violations351 recent
D
VILLAGE OF WEST SULLIVAN PWS
343 served277 violations275 recent
C
MO ARK WATER CO
1,478 served214 violations211 recent
C
REYNOLDS COUNTY PWSD 1
400 served232 violations199 recent
C
STARLIGHT VILLAGE
65 served376 violations194 recent
D
FREEBURG PWS
437 served176 violations175 recent
C
HAPPY ACRES
50 served152 violations150 recent
F
PORTAGEVILLE PWS
3,200 served139 violations135 recent
C
NEW HAMBURG CENTRAL
45 served242 violations131 recent
C
OZARK PARK ESTATES
150 served180 violations123 recent
D
Cleanest Water Systems
MO AMERICAN ST LOUIS ST CHARLES COUNTIES
1,111,000 served0 violations
A
KANSAS CITY PWS
513,800 served1 violations
A
SPRINGFIELD PWS
210,898 served2 violations
A
MO AMERICAN ST JOSEPH
89,171 served0 violations
A
MO AMERICAN JOPLIN
73,728 served0 violations
A
ST PETERS PWS
52,575 served1 violations
A
WENTZVILLE PWS
41,784 served1 violations
A
UNIVERSITY OF MISSOURI COLUMBIA
40,000 served0 violations
A
JEFFERSON CO CONS PWSD C 1
37,000 served0 violations
A
FORT LEONARD WOOD
34,000 served0 violations
A
Largest Water Systems in Missouri
| Water System | Grade | Population | Violations |
|---|---|---|---|
| MO AMERICAN ST LOUIS ST CHARLES COUNTIES | A | 1,111,000 | 0 |
| KANSAS CITY PWS | A | 513,800 | 1 |
| ST LOUIS CITY PWS | C | 304,709 | 48 |
| SPRINGFIELD PWS | A | 210,898 | 2 |
| CITY OF COLUMBIA UTILITIES | B | 126,254 | 2 |
| INDEPENDENCE PWS | C | 120,000 | 4 |
| ST CHARLES COUNTY PWSD 2 | C | 100,587 | 3 |
| LEES SUMMIT PWS | C | 99,400 | 16 |
| MO AMERICAN ST JOSEPH | A | 89,171 | 0 |
| MO AMERICAN JOPLIN | A | 73,728 | 0 |
| ST CHARLES PWS | B | 73,040 | 4 |
| BLUE SPRINGS PWS | C | 61,084 | 5 |
| ST PETERS PWS | A | 52,575 | 1 |
| WENTZVILLE PWS | A | 41,784 | 1 |
| UNIVERSITY OF MISSOURI COLUMBIA | A | 40,000 | 0 |
| CAPE GIRARDEAU PWS | C | 39,941 | 12 |
| JEFFERSON CO CONS PWSD C 1 | A | 37,000 | 0 |
| FORT LEONARD WOOD | A | 34,000 | 0 |
| OFALLON PWS | B | 32,515 | 2 |
| LIBERTY PWS | C | 30,800 | 85 |
Contaminants in Missouri
Cities in Missouri
CHESTERFIELD(4)KANSAS CITY(2)ST LOUIS(4)SPRINGFIELD(12)COLUMBIA(6)O FALLON(12)INDEPENDENCE(3)JOPLIN(31)LEES SUMMIT(2)ST JOSEPH(5)ST CHARLES(1)JEFFERSON CITY(6)BLUE SPRINGS(1)ST PETERS(1)WENTZVILLE(2)CAPE GIRARDEAU(11)ARNOLD(5)BARNHART(1)FORT LEONARD WOOD(1)LIBERTY(5)RAYTOWN(2)BELTON(7)AURORA(25)LEBANON(3)POPLAR BLUFF(4)KIRKWOOD(1)NIXA(6)RAYMORE(4)GLADSTONE(1)FULTON(3)KIRKSVILLE(2)HANNIBAL(2)MOBERLY(2)GRANDVIEW(1)JACKSON(6)FARMINGTON(6)ROLLA(6)OZARK(7)SEDALIA(9)BRANSON(15)PARKVILLE(2)GRAIN VALLEY(2)MACON(2)HARRISONVILLE(3)SIKESTON(4)NEVADA(2)WASHINGTON(5)MARYVILLE(2)COTTLEVILLE(8)EUREKA(3)MARSHALL(3)KEARNEY(2)REPUBLIC(1)WEST PLAINS(5)WEBB CITY(2)DE SOTO(6)CAMERON(2)WINFIELD(2)HOLDEN(2)RICHMOND(2)FESTUS(5)WAYNESVILLE(5)CARTHAGE(2)CLINTON(3)SMITHVILLE(3)PLATTE CITY(3)TROY(15)CHILLICOTHE(3)DES PERES(31)LAMAR(2)ODESSA(3)CARL JUNCTION(2)EXCELSIOR SPRINGS(3)UNION(10)DEXTER(3)PERRYVILLE(7)HILLSBORO(6)WARRENTON(7)NEOSHO(3)LAKE OZARK(5)KENNETT(2)HIGGINSVILLE(2)BOWLING GREEN(2)SAVANNAH(2)PLEASANT HILL(2)TRENTON(3)STE GENEVIEVE(4)BOONVILLE(3)IMPERIAL(2)CAMDENTON(23)VILLA RIDGE(3)WHITEMAN AFB(1)BROOKFIELD(3)HOLTS SUMMIT(2)PARK HILLS(4)HAYTI(3)PECULIAR(2)BATTLEFIELD(1)MONETT(2)LAKE LOTAWANA(1)