Idaho Water Quality
764 water systems serving 1,565,041 people. 23,616 total violations on record.
Safety Grade Distribution
A
242
32%
B
138
18%
C
296
39%
D
43
6%
F
45
6%
764
Water Systems
1,565,041
Population Served
23,616
Total Violations
2,163
Health-Based
Most Contaminated Systems
ASPEN RIDGE SUBD
204 served914 violations913 recent
F
SHOTGUN CHEROKEE SUBD 5
245 served498 violations497 recent
F
IDAHO CITY WATER DEPT
478 served538 violations490 recent
F
SMILEY CREEK WATER USERS ASSN INC
117 served421 violations407 recent
F
SHOTGUN NORTH
285 served373 violations373 recent
F
MORES CREEK RIM RANCH WATER DIST
140 served316 violations292 recent
C
GOLF CLUB ESTATES WATER INC
140 served302 violations290 recent
C
WOODLAND SHORES WATER AND SEWER ASSN
210 served297 violations276 recent
C
DUFORT WATER ASSOCIATION
216 served273 violations270 recent
C
BLUE SAGE SUBDIVISION
112 served240 violations240 recent
C
Cleanest Water Systems
VEOLIA WATER IDAHO
264,978 served248 violations
A
IDAHO FALLS CITY OF
69,450 served68 violations
A
COEUR D ALENE CITY OF
54,115 served0 violations
A
CHUBBUCK CITY OF
15,842 served0 violations
A
LEWISTON CITY OF
15,001 served0 violations
A
MIDDLETON CITY OF
13,190 served24 violations
A
EAST GREENACRES IRRIGATION DIST
11,165 served36 violations
A
HAYDEN LAKE IRRIGATION DIST
9,375 served4 violations
A
ROSS POINT WATER DIST
8,965 served0 violations
A
AVONDALE IRRIGATION DIST
8,785 served48 violations
A
Largest Water Systems in Idaho
| Water System | Grade | Population | Violations |
|---|---|---|---|
| VEOLIA WATER IDAHO | A | 264,978 | 248 |
| MERIDIAN WATER DEPT | C | 147,340 | 17 |
| NAMPA CITY OF | C | 100,200 | 195 |
| CALDWELL CITY OF | C | 74,000 | 249 |
| IDAHO FALLS CITY OF | A | 69,450 | 68 |
| POCATELLO CITY OF | D | 58,231 | 1312 |
| TWIN FALLS CITY OF | C | 56,121 | 42 |
| COEUR D ALENE CITY OF | A | 54,115 | 0 |
| REXBURG CITY OF | B | 40,462 | 35 |
| KUNA CITY OF | C | 32,038 | 351 |
| MOSCOW WATER DEPT | C | 26,000 | 25 |
| FALLS WATER COMPANY INC | F | 22,650 | 351 |
| POST FALLS CITY OF | C | 20,285 | 408 |
| LEWISTON ORCHARDS IRRIGATION DIST | B | 20,000 | 88 |
| AMMON CITY OF | C | 17,338 | 208 |
| CHUBBUCK CITY OF | A | 15,842 | 0 |
| LEWISTON CITY OF | A | 15,001 | 0 |
| MOUNTAIN HOME, CITY OF | D | 14,651 | 150 |
| STAR SEWER AND WATER DIST WATER SYSTEM | B | 14,000 | 4 |
| MIDDLETON CITY OF | A | 13,190 | 24 |
Contaminants in Idaho
Cities in Idaho
BOISE(40)MERIDIAN(7)NAMPA(41)IDAHO FALLS(27)CALDWELL(21)POCATELLO(14)COEUR D ALENE(12)TWIN FALLS(3)POST FALLS(12)REXBURG(8)LEWISTON(9)MOSCOW(4)KUNA(5)RATHDRUM(27)HAYDEN(14)SANDPOINT(23)AMMON(2)MOUNTAIN HOME(13)CHUBBUCK(3)STAR(1)MIDDLETON(6)JEROME(5)BLACKFOOT(13)EAGLE(16)GARDEN CITY(4)BURLEY(6)BONNERS FERRY(11)HAILEY(4)PAYETTE(2)PRESTON(9)MOUNTAIN HOME AFB(1)FRUITLAND(2)RIGBY(12)EMMETT(6)KELLOGG(2)RUPERT(3)WEISER(1)KIMBERLY(2)SHELLEY(7)COEUR D'ALENE(18)AMERICAN FALLS(3)KETCHUM(10)MCCALL(4)BUHL(3)ST MARIES(5)OROFINO(4)ATHOL(19)WILDER(2)ST ANTHONY(2)GOODING(2)SPIRIT LAKE(6)SALMON(5)DRIGGS(5)SUN VALLEY(2)SODA SPRINGS(4)WALLACE(3)GRANGEVILLE(2)HEYBURN(3)WENDELL(1)HOMEDALE(1)IONA(3)SUGAR CITY(3)FILER(1)MONTPELIER(1)BELLEVUE(1)DALTON GARDENS(1)VICTOR(3)PRIEST RIVER(3)KAMIAH(6)MALAD(1)ABERDEEN(1)NEW PLYMOUTH(2)PINEHURST(2)SAGLE(8)COTTONWOOD(3)PLUMMER(2)MARSING(3)WORLEY(4)SHOSHONE(1)NEW MEADOWS(2)HAUSER(1)HANSEN(2)OAKLEY(2)UCON(2)GLENNS FERRY(1)KINGSTON(2)PAUL(1)BAYVIEW(1)MOYIE SPRINGS(2)ARCO(2)ASHTON(1)BLANCHARD(2)HAGERMAN(3)GARDEN VALLEY(8)FRANKLIN(2)POTLATCH(3)GRACE(3)GENESEE(1)CHALLIS(2)NOTUS(6)