Idaho tap water quality
773 community water systems
6%
exceed lead action level
(46/770 systems)
(46/770 systems)
4.8%
PFOA/PFOS detected
(3/62 systems)
(3/62 systems)
Largest water systems
Lead is the LCR 90th-percentile result; a value above 0.015 mg/L exceeds the
EPA action level. “—” means no lead sample is on file for that system.
| System | City | Population | Lead (p90) |
|---|---|---|---|
| VEOLIA WATER IDAHO | 264,978 | 0.0084 mg/L | |
| MERIDIAN WATER DEPT | 147,340 | 0.0048 mg/L | |
| NAMPA CITY OF | 100,200 | 0.0050 mg/L | |
| CALDWELL CITY OF | 74,000 | 0.0054 mg/L | |
| IDAHO FALLS CITY OF | 69,450 | 0.0084 mg/L | |
| POCATELLO CITY OF | POCATELLO | 58,231 | 0.0072 mg/L |
| TWIN FALLS CITY OF | 56,121 | 0.0050 mg/L | |
| COEUR D ALENE CITY OF | 54,115 | 0.0036 mg/L | |
| REXBURG CITY OF | 40,695 | 0.0063 mg/L | |
| KUNA CITY OF | 32,038 | 0.0050 mg/L | |
| MOSCOW WATER DEPT | 26,000 | 0.0110 mg/L | |
| FALLS WATER COMPANY INC | 22,650 | 0.0063 mg/L | |
| POST FALLS CITY OF | 20,285 | 0.0050 mg/L | |
| LEWISTON ORCHARDS IRRIGATION DIST | 20,000 | 0.0091 mg/L | |
| AMMON CITY OF | 17,338 | 0.0041 mg/L | |
| CHUBBUCK CITY OF | 15,842 | 0.0089 mg/L | |
| LEWISTON CITY OF | 15,001 | 0.0053 mg/L | |
| MOUNTAIN HOME, CITY OF | 14,651 | 0.0050 mg/L | |
| STAR SEWER AND WATER DIST WATER SYSTEM | 14,000 | 0.0134 mg/L | |
| BLACKFOOT CITY OF | 13,224 | 0.0085 mg/L | |
| MIDDLETON CITY OF | 13,190 | 0.0070 mg/L | |
| JEROME CITY OF | 13,135 | 0.0083 mg/L | |
| GARDEN CITY WATER AND SEWER SYSTEM | 12,500 | 0.0050 mg/L | |
| SANDPOINT PUBLIC WORKS DEPT | 12,284 | 0.0087 mg/L | |
| EAST GREENACRES IRRIGATION DIST | 11,165 | 0.0066 mg/L | |
| RATHDRUM CITY OF | 10,358 | 0.0080 mg/L | |
| BURLEY WATER DEPT | 10,345 | 0.0060 mg/L | |
| HAYDEN LAKE IRRIGATION DIST | 9,375 | 0.0021 mg/L | |
| CAPITOL WATER CORP | 9,000 | 0.0054 mg/L | |
| ROSS POINT WATER DIST | 8,965 | 0.0040 mg/L | |
| AVONDALE IRRIGATION DIST | 8,785 | 0.0071 mg/L | |
| UNIVERSITY OF IDAHO | 8,589 | 0.0118 mg/L | |
| PAYETTE CITY OF | 8,127 | 0.0056 mg/L | |
| HAILEY WATER AND SEWER | 8,000 | 0.0040 mg/L | |
| MOUNTAIN HOME AIR FORCE BASE | 7,500 | 0.0010 mg/L | |
| FRUITLAND CITY OF | 7,458 | 0.0077 mg/L | |
| EMMETT CITY OF | 6,700 | 0.0054 mg/L | |
| EAGLE, CITY OF (WESTERN ZONE) | 6,108 | 0.0010 mg/L | |
| CENTRAL SHOSHONE COUNTY WATER DIST | 6,098 | 0.0150 mg/L | |
| RUPERT CITY OF | 5,796 | 0.0050 mg/L | |
| WEISER CITY OF | 5,630 | 0.0060 mg/L | |
| PRESTON CITY OF | 5,591 | 0.0043 mg/L | |
| RIGBY CITY OF | 5,400 | 0.0100 mg/L | |
| KIMBERLY CITY OF | 5,359 | 0.0024 mg/L | |
| HYDE PARK CITY WATER SYSTEM | 5,200 | 0.0059 mg/L | |
| AMERICAN FALLS CITY OF | 4,863 | 0.0125 mg/L | |
| BUHL CITY OF | 4,518 | 0.0064 mg/L | |
| MCCALL CITY OF | 4,423 | 0.0238 mg/L | |
| SHELLEY CITY OF | 4,409 | 0.0059 mg/L | |
| ST MARIES CITY OF | 4,173 | 0.0147 mg/L | |
| HILLSIDE SERVICE AREA | 4,140 | 0.0033 mg/L | |
| GOODING CITY OF | 3,706 | 0.0020 mg/L | |
| EAGLE, CITY OF (EASTERN ZONE) | 3,702 | 0.0060 mg/L | |
| ST ANTHONY | 3,606 | 0.0118 mg/L | |
| KETCHUM CITY OF | 3,555 | 0.0100 mg/L | |
| RIMROCK SERVICE AREA | 3,493 | 0.0056 mg/L | |
| SUN VALLEY WATER AND SEWER DIST | 3,400 | 0.0116 mg/L | |
| BONNERS FERRY CITY OF | 3,367 | 0.0100 mg/L | |
| IDOC SBX COMPLEX | 3,309 | 0.0050 mg/L | |
| HOMEDALE CITY OF | 3,300 | 0.0063 mg/L | |
| SALMON CITY OF | 3,158 | 0.0081 mg/L | |
| GRANGEVILLE WATER DEPT | 3,151 | 0.0035 mg/L | |
| SODA SPRINGS CITY OF | 3,111 | 0.0082 mg/L | |
| WENDELL CITY OF | 3,000 | 0.0025 mg/L | |
| HEYBURN CITY OF | 3,000 | 0.0022 mg/L | |
| RICHMOND CITY WATER SYSTEM | 2,967 | 0.0070 mg/L | |
| FILER WATER WORKS | 2,858 | 0.0040 mg/L | |
| FORT HALL | FORT HALL | 2,850 | 0.0084 mg/L |
| SPIRIT LAKE CITY OF | 2,825 | 0.0030 mg/L | |
| MONTPELIER CITY OF | 2,772 | 0.0052 mg/L | |
| BELLEVUE CITY OF | 2,747 | 0.0050 mg/L | |
| IONA WATER DEPT | 2,717 | 0.0041 mg/L | |
| DALTON WATER ASSN INC | 2,602 | 0.0062 mg/L | |
| OROFINO CITY OF | 2,459 | 0.0124 mg/L | |
| THREE MILE WATER DIST | 2,458 | 0.0054 mg/L | |
| SUGAR CITY CITY OF | 2,395 | 0.0080 mg/L | |
| E SHOSHONE COUNTY WATER DIST WALLACE | 2,388 | 0.0056 mg/L | |
| VICTOR CITY OF | 2,361 | 0.0040 mg/L | |
| CABINET MOUNTAINS WATER DIST | 2,335 | 0.0054 mg/L | |
| PARMA CITY OF | 2,250 | 0.0080 mg/L | |
| IDOC IDAHO STATE CORRECTIONAL CENTER | 2,204 | 0.0050 mg/L | |
| DRIGGS CITY OF | 2,200 | 0.0060 mg/L | |
| MALAD CITY OF | 2,200 | 0.0043 mg/L | |
| PRIEST RIVER CITY OF | 2,173 | 0.0062 mg/L | |
| ABERDEEN CITY OF | 2,088 | 0.0020 mg/L | |
| WILLARD CITY WATER SYSTEM | 2,036 | 0.0050 mg/L | |
| TWIN LAKES SERVICE AREA | 2,023 | 0.0031 mg/L | |
| RIVERSIDE WATER AND SEWER DISTRICT | 2,000 | 0.0030 mg/L | |
| PINEHURST WATER DIST | 1,950 | 0.0029 mg/L | |
| WILDER CITY OF | 1,690 | 0.0068 mg/L | |
| SHOSHONE WATER WORKS | 1,653 | 0.0050 mg/L | |
| NEW PLYMOUTH CITY OF | 1,600 | 0.0029 mg/L | |
| HAUSER LAKE WATER ASSN INC | 1,575 | 0.0054 mg/L | |
| ODEN WATER ASSN INC | 1,524 | 0.0034 mg/L | |
| COMORE LOMA | 1,500 | 0.0077 mg/L | |
| KAMIAH CITY OF | 1,495 | 0.0281 mg/L | |
| BAYVIEW WATER AND SEWER DIST | 1,320 | 0.0031 mg/L | |
| FAIRVIEW WATER DIST | 1,300 | 0.0068 mg/L | |
| MARSING CITY OF | 1,300 | 0.0058 mg/L | |
| GLENNS FERRY CITY OF | 1,282 | 0.0082 mg/L |