Water Quality in Minnesota
965 water systems • 677 cities • EPA SDWIS Data
965
Water Systems
3,784
Total Violations
733
Health-Based Violations
4,670,079
Population Served
Overview
Minnesota has 965 active community water systems serving 4,670,079 people. These systems have accumulated 3,784 EPA Safe Drinking Water Act violations on record, of which 733 are health-based violations (meaning a contaminant exceeded safe levels).
Common contaminants found in violations: Stage 2 DBP, Chlorine Dioxide, Disinfection Byproducts, Total Organic Carbon, HAA5, Selenium, Barium, Chlorine, E. coli, Gross Alpha.
Cities with Most Violations in Minnesota
| # | City | Violations | Health-Based | Water Systems | Population |
|---|---|---|---|---|---|
| 1 | Climax | 114 | 38 | 1 | 223 |
| 2 | Ham Lake | 80 | 3 | 4 | 1,336 |
| 3 | Blomkest | 73 | 0 | 3 | 291 |
| 4 | Lancaster | 69 | 38 | 2 | 511 |
| 5 | Thief River Falls | 63 | 40 | 2 | 8,751 |
| 6 | Detroit Lakes | 61 | 40 | 3 | 10,138 |
| 7 | Bemidji | 60 | 0 | 13 | 16,027 |
| 8 | Winger | 57 | 57 | 1 | 181 |
| 9 | Gibbon | 56 | 56 | 2 | 890 |
| 10 | Mankato | 53 | 3 | 8 | 43,913 |
Largest Cities in Minnesota
| # | City | Population | Violations | Water Systems |
|---|---|---|---|---|
| 1 | Minneapolis | 435,122 | 13 | 6 |
| 2 | St. Paul | 403,059 | 49 | 4 |
| 3 | Rochester | 124,843 | 26 | 9 |
| 4 | Bloomington | 91,300 | 4 | 1 |
| 5 | Brooklyn Park | 90,775 | 14 | 3 |
| 6 | Duluth | 87,944 | 2 | 2 |
| 7 | Woodbury | 82,643 | 2 | 1 |
| 8 | Plymouth | 81,326 | 1 | 2 |
| 9 | Maple Grove | 75,160 | 0 | 2 |
| 10 | Blaine | 72,220 | 0 | 2 |
All Cities in Minnesota
| City | Population | Violations | Health Violations | Contaminants |
|---|---|---|---|---|
| Minneapolis | 435,122 | 13 | 0 | |
| St. Paul | 403,059 | 49 | 0 | |
| Rochester | 124,843 | 26 | 0 | |
| Bloomington | 91,300 | 4 | 0 | |
| Brooklyn Park | 90,775 | 14 | 0 | |
| Duluth | 87,944 | 2 | 1 | E. coli |
| Woodbury | 82,643 | 2 | 0 | |
| Plymouth | 81,326 | 1 | 0 | |
| Maple Grove | 75,160 | 0 | 0 | |
| Blaine | 72,220 | 0 | 0 | |
| St. Cloud | 71,526 | 14 | 0 | |
| Eagan | 68,223 | 1 | 0 | |
| Lakeville | 67,800 | 14 | 0 | |
| Coon Rapids | 64,000 | 0 | 0 | |
| Eden Prairie | 63,726 | 2 | 0 | |
| Burnsville | 61,747 | 1 | 0 | |
| Minnetonka | 54,474 | 0 | 0 | |
| Edina | 53,861 | 7 | 0 | |
| St. Louis Park | 50,526 | 6 | 0 | |
| Apple Valley | 50,300 | 0 | 0 | |
| Shakopee | 48,263 | 28 | 8 | Selenium |
| Moorhead | 44,583 | 0 | 0 | |
| Mankato | 43,913 | 53 | 3 | Chlorine, Chlorine Dioxide |
| Cottage Grove | 39,762 | 4 | 0 | |
| White Bear Lake | 37,333 | 1 | 0 | |
| Richfield | 36,899 | 0 | 0 | |
| Roseville | 36,254 | 0 | 0 | |
| Albertville | 35,785 | 0 | 0 | |
| Inver Grove Heights | 35,374 | 12 | 9 | HAA5, Total Organic Carbon |
| Brooklyn Center | 33,782 | 0 | 0 | |
| Winona | 32,026 | 12 | 8 | Total Organic Carbon |
| Chaska | 30,709 | 6 | 0 | |
| Savage | 30,285 | 4 | 4 | Total Organic Carbon |
| Oakdale | 28,819 | 4 | 0 | |
| Fridley | 28,776 | 1 | 0 | |
| Farmington | 26,686 | 0 | 0 | |
| Rosemount | 26,500 | 2 | 0 | |
| Owatonna | 26,430 | 0 | 0 | |
| Austin | 26,273 | 23 | 0 | |
| Shoreview | 26,000 | 4 | 0 | |
| Faribault | 25,911 | 8 | 0 | |
| Prior Lake | 25,282 | 0 | 0 | |
| Chanhassen | 24,951 | 1 | 0 | |
| Champlin | 24,007 | 0 | 0 | |
| Hastings | 23,595 | 19 | 4 | Chlorine, E. coli, Selenium |
| Northfield | 23,275 | 6 | 0 | |
| Golden Valley | 23,067 | 4 | 0 | |
| Crystal | 22,937 | 0 | 0 | |
| New Brighton | 22,902 | 0 | 0 | |
| Columbia Heights | 22,278 | 3 | 0 | |
| Andover | 21,455 | 0 | 0 | |
| Stillwater | 21,148 | 29 | 0 | |
| Willmar | 21,135 | 1 | 0 | |
| New Hope | 20,963 | 0 | 0 | |
| South St. Paul | 20,664 | 10 | 10 | E. coli, HAA5, Total Organic Carbon |
| Sartell | 20,300 | 0 | 0 | |
| Elk River | 19,712 | 0 | 0 | |
| Hopkins | 19,462 | 0 | 0 | |
| Lino Lakes | 19,159 | 4 | 0 | |
| Otsego | 19,000 | 9 | 6 | HAA5, Total Organic Carbon |
| Albert Lea | 18,694 | 4 | 0 | |
| Anoka | 18,060 | 41 | 0 | |
| Ramsey | 17,705 | 0 | 0 | |
| Buffalo | 16,711 | 0 | 0 | |
| Red Wing | 16,629 | 0 | 0 | |
| Monticello | 16,337 | 11 | 2 | Selenium |
| Hibbing | 16,028 | 11 | 0 | |
| Bemidji | 16,027 | 60 | 0 | |
| Alexandria | 15,150 | 6 | 0 | |
| Brainerd | 14,933 | 13 | 0 | |
| Hutchinson | 14,650 | 0 | 0 | |
| Robbinsdale | 14,646 | 0 | 0 | |
| Rogers | 14,510 | 4 | 0 | |
| Lake Benton | 14,449 | 1 | 0 | |
| North Mankato | 14,448 | 1 | 0 | |
| Fergus Falls | 14,362 | 37 | 34 | Barium |
| Sauk Rapids | 14,352 | 19 | 0 | |
| New Ulm | 14,106 | 10 | 0 | |
| Worthington | 14,052 | 0 | 0 | |
| Marshall | 13,979 | 0 | 0 | |
| Cloquet | 13,867 | 7 | 0 | |
| Lake Elmo | 13,378 | 14 | 0 | |
| Waconia | 13,277 | 3 | 0 | |
| Mounds View | 13,250 | 0 | 0 | |
| North St. Paul | 13,134 | 0 | 0 | |
| Vadnais Heights | 13,025 | 4 | 0 | |
| Big Lake | 12,413 | 0 | 0 | |
| Hugo | 12,047 | 0 | 0 | |
| Forest Lake | 12,040 | 6 | 0 | |
| St. Peter | 11,847 | 1 | 1 | E. coli |
| Grand Rapids | 11,551 | 10 | 0 | |
| Victoria | 10,641 | 4 | 2 | Stage 2 DBP |
| Fairmont | 10,328 | 2 | 1 | Selenium |
| Detroit Lakes | 10,138 | 61 | 40 | Barium, Selenium |
| Arden Hills | 10,000 | 3 | 0 | |
| Cambridge | 9,862 | 0 | 0 | |
| Mound | 9,447 | 2 | 0 | |
| Baxter | 9,341 | 3 | 0 | |
| Waseca | 9,241 | 0 | 0 | |
| East Grand Forks | 9,206 | 0 | 0 | |
| Little Falls | 9,069 | 0 | 0 | |
| Thief River Falls | 8,751 | 63 | 40 | E. coli |
| St. Joseph | 8,700 | 2 | 0 | |
| Virginia | 8,361 | 0 | 0 | |
| Waite Park | 8,354 | 0 | 0 | |
| New Prague | 8,279 | 0 | 0 | |
| Mahtomedi | 8,134 | 0 | 0 | |
| Luverne | 7,865 | 4 | 0 | |
| Belle Plaine | 7,456 | 0 | 0 | |
| Isanti | 7,386 | 0 | 0 | |
| Crookston | 7,272 | 0 | 0 | |
| Hermantown | 7,215 | 0 | 0 | |
| Spring Lake Park | 7,200 | 4 | 4 | Total Organic Carbon |
| Kasson | 6,850 | 0 | 0 | |
| Stewartville | 6,850 | 0 | 0 | |
| Litchfield | 6,822 | 1 | 0 | |
| Jordan | 6,810 | 4 | 0 | |
| Zimmerman | 6,772 | 0 | 0 | |
| Carver | 6,700 | 4 | 0 | |
| Delano | 6,564 | 6 | 0 | |
| Byron | 6,312 | 0 | 0 | |
| Jeffers | 6,209 | 4 | 0 | |
| North Branch | 6,190 | 0 | 0 | |
| Minnetrista | 5,888 | 10 | 0 | |
| Circle Pines | 5,725 | 0 | 0 | |
| Glencoe | 5,720 | 0 | 0 | |
| International Falls | 5,637 | 0 | 0 | |
| St. Paul Park | 5,427 | 1 | 0 | |
| Morris | 5,388 | 45 | 28 | Barium |
| Princeton | 5,346 | 6 | 0 | |
| Montevideo | 5,337 | 0 | 0 | |
| Redwood Falls | 5,254 | 0 | 0 | |
| St. Francis | 5,200 | 0 | 0 | |
| Lindstrom | 5,068 | 17 | 0 | |
| Watertown | 5,050 | 5 | 0 | |
| Lake City | 5,042 | 0 | 0 | |
| Becker | 5,034 | 7 | 0 | |
| Lacrescent | 5,029 | 0 | 0 | |
| Elko-New Market | 5,003 | 8 | 4 | HAA5, Total Organic Carbon |
| Chisholm | 4,940 | 0 | 0 | |
| Dayton | 4,930 | 0 | 0 | |
| Dilworth | 4,918 | 8 | 0 | |
| Warren | 4,846 | 0 | 0 | |
| Excelsior | 4,800 | 0 | 0 | |
| Oak Park Heights | 4,776 | 0 | 0 | |
| Windom | 4,704 | 5 | 0 | |
| Sauk Centre | 4,641 | 2 | 1 | Barium |
| St. James | 4,611 | 0 | 0 | |
| Wayzata | 4,592 | 0 | 0 | |
| Park Rapids | 4,498 | 4 | 0 | |
| Eveleth | 4,335 | 7 | 1 | Total Haloacetic Acids (HAA5) |
| Wadena | 4,332 | 0 | 0 | |
| Pipestone | 4,273 | 1 | 1 | HAA5 |
| Cannon Falls | 4,237 | 0 | 0 | |
| Hamel | 4,205 | 1 | 0 | |
| Cold Spring | 4,201 | 0 | 0 | |
| Lesueur | 4,170 | 4 | 0 | |
| Newport | 4,000 | 0 | 0 | |
| Wyoming | 3,990 | 1 | 0 | |
| Centerville | 3,962 | 4 | 0 | |
| Lonsdale | 3,913 | 0 | 0 | |
| Montrose | 3,899 | 0 | 0 | |
| Shorewood | 3,890 | 0 | 0 | |
| Norwood Young America | 3,850 | 2 | 0 | |
| St. Charles | 3,825 | 0 | 0 | |
| Mora | 3,786 | 2 | 0 | |
| Chisago City | 3,745 | 1 | 0 | |
| Long Prairie | 3,744 | 0 | 0 | |
| Melrose | 3,702 | 1 | 0 | |
| Two Harbors | 3,698 | 6 | 0 | |
| Pine City | 3,663 | 8 | 0 | |
| Sleepy Eye | 3,599 | 0 | 0 | |
| Lakeland | 3,500 | 2 | 0 | |
| Bayport | 3,481 | 7 | 0 | |
| Benson | 3,437 | 6 | 0 | |
| Annandale | 3,430 | 0 | 0 | |
| Rush City | 3,424 | 19 | 11 | HAA5, Total Organic Carbon |
| Perham | 3,421 | 0 | 0 | |
| Montgomery | 3,379 | 0 | 0 | |
| Plainview | 3,340 | 0 | 0 | |
| Breckenridge | 3,340 | 1 | 0 | |
| Pine Island | 3,324 | 1 | 0 | |
| Jackson | 3,323 | 0 | 0 | |
| Aurora | 3,323 | 4 | 0 | |
| Eagle Lake | 3,268 | 0 | 0 | |
| Milaca | 3,263 | 9 | 0 | |
| Ely | 3,258 | 15 | 10 | Total Haloacetic Acids (HAA5) |
| Blue Earth | 3,174 | 2 | 0 | |
| Zumbrota | 3,172 | 0 | 0 | |
| Proctor | 3,099 | 3 | 0 | |
| Orono | 3,062 | 1 | 0 | |
| Staples | 3,030 | 0 | 0 | |
| Lexington | 3,018 | 3 | 2 | HAA5 |
| Sandstone | 3,012 | 1 | 0 | |
| Chatfield | 3,005 | 0 | 0 | |
| Moose Lake | 2,997 | 46 | 1 | Disinfection Byproducts |
| Corcoran | 2,964 | 0 | 0 | |
| Dodge Center | 2,939 | 0 | 0 | |
| Warroad | 2,927 | 26 | 0 | |
| Lake Bronson | 2,920 | 4 | 0 | |
| Albany | 2,909 | 7 | 1 | Selenium |
| St. Bonifacius | 2,894 | 16 | 0 | |
| Mountain Iron | 2,880 | 4 | 0 | |
| Granite Falls | 2,843 | 0 | 0 | |
| Caledonia | 2,824 | 8 | 0 | |
| Cokato | 2,792 | 0 | 0 | |
| Barnesville | 2,784 | 2 | 0 | |
| Glenwood | 2,765 | 3 | 0 | |
| Roseau | 2,729 | 8 | 0 | |
| Foley | 2,705 | 1 | 0 | |
| Osseo | 2,650 | 6 | 0 | |
| Pelican Rapids | 2,642 | 45 | 37 | Barium |
| Spicer | 2,596 | 5 | 1 | TTHM |
| Hawley | 2,592 | 4 | 0 | |
| Spring Valley | 2,580 | 3 | 0 | |
| Lake Crystal | 2,554 | 0 | 0 | |
| Le Center | 2,544 | 24 | 0 | |
| Paynesville | 2,530 | 0 | 0 | |
| Wabasha | 2,521 | 0 | 0 | |
| Collegeville | 2,500 | 1 | 1 | E. coli |
| Crosby | 2,444 | 3 | 0 | |
| Olivia | 2,353 | 0 | 0 | |
| Wells | 2,343 | 0 | 0 | |
| Madelia | 2,319 | 1 | 0 | |
| Janesville | 2,275 | 1 | 0 | |
| Gaylord | 2,269 | 0 | 0 | |
| Arlington | 2,230 | 1 | 0 | |
| Winsted | 2,226 | 4 | 0 | |
| Maple Lake | 2,215 | 1 | 0 | |
| Howard Lake | 2,180 | 3 | 0 | |
| Maple Plain | 2,174 | 0 | 0 | |
| Aitkin | 2,165 | 3 | 0 | |
| Rice | 2,161 | 0 | 0 | |
| Tracy | 2,154 | 3 | 0 | |
| Oronoco | 2,145 | 6 | 0 | |
| Clearwater | 2,129 | 13 | 0 | |
| Waverly | 2,100 | 0 | 0 | |
| Mountain Lake | 2,073 | 4 | 0 | |
| Springfield | 2,070 | 2 | 0 | |
| Eyota | 2,043 | 0 | 0 | |
| Ortonville | 2,021 | 7 | 0 | |
| Slayton | 2,020 | 11 | 0 | |
| Hoyt Lakes | 2,020 | 4 | 0 | |
| Coleraine | 1,997 | 10 | 0 | |
| Blooming Prairie | 1,987 | 0 | 0 | |
| Hinckley | 1,964 | 16 | 16 | HAA5, Total Organic Carbon |
| Lester Prairie | 1,904 | 0 | 0 | |
| Mayer | 1,900 | 4 | 0 | |
| Gilbert | 1,871 | 1 | 0 | |
| Waterville | 1,868 | 0 | 0 | |
| Rushford | 1,860 | 2 | 0 | |
| Silver Bay | 1,826 | 4 | 0 | |
| Kenyon | 1,817 | 0 | 0 | |
| Avon | 1,811 | 18 | 1 | Chlorine Dioxide |
| Osakis | 1,805 | 8 | 0 | |
| Braham | 1,789 | 1 | 0 | |
| Canby | 1,769 | 0 | 0 | |
| Mapleton | 1,756 | 0 | 0 | |
| Spring Park | 1,743 | 1 | 0 | |
| Long Lake | 1,729 | 2 | 0 | |
| Ada | 1,725 | 5 | 0 | |
| Cologne | 1,700 | 0 | 0 | |
| Lakefield | 1,694 | 4 | 0 | |
| Medford | 1,626 | 2 | 1 | HAA5 |
| Stacy | 1,593 | 14 | 8 | HAA5, Total Organic Carbon |
| Dawson | 1,540 | 2 | 0 | |
| Dundas | 1,539 | 5 | 0 | |
| Lewiston | 1,520 | 6 | 6 | Total Organic Carbon |
| Madison | 1,511 | 0 | 0 | |
| Dassel | 1,503 | 4 | 0 | |
| Pierz | 1,500 | 2 | 0 | |
| Richmond | 1,485 | 2 | 0 | |
| Wheaton | 1,465 | 4 | 0 | |
| Starbuck | 1,440 | 4 | 0 | |
| St. Augusta | 1,425 | 1 | 0 | |
| Grand Marais | 1,404 | 6 | 0 | |
| Frazee | 1,400 | 0 | 0 | |
| Winnebago | 1,391 | 0 | 0 | |
| Glyndon | 1,386 | 4 | 0 | |
| Fosston | 1,385 | 0 | 0 | |
| Minneota | 1,380 | 2 | 0 | |
| Babbitt | 1,379 | 2 | 0 | |
| Appleton | 1,376 | 8 | 0 | |
| Preston | 1,372 | 11 | 0 | |
| Hayfield | 1,363 | 4 | 0 | |
| Clara City | 1,360 | 0 | 0 | |
| Menahga | 1,347 | 0 | 0 | |
| Ham Lake | 1,336 | 80 | 3 | Total Organic Carbon |
| Winthrop | 1,330 | 2 | 1 | Stage 2 DBP |
| Red Lake Falls | 1,328 | 0 | 0 | |
| Pequot Lakes | 1,325 | 10 | 0 | |
| Fulda | 1,318 | 0 | 0 | |
| Renville | 1,301 | 0 | 0 | |
| Fairfax | 1,295 | 6 | 0 | |
| Spring Grove | 1,291 | 0 | 0 | |
| Bagley | 1,288 | 0 | 0 | |
| New York Mills | 1,287 | 0 | 0 | |
| Elbow Lake | 1,285 | 0 | 0 | |
| Edgerton | 1,281 | 0 | 0 | |
| New London | 1,277 | 4 | 0 | |
| Royalton | 1,266 | 3 | 0 | |
| Shafer | 1,265 | 4 | 0 | |
| Cottonwood | 1,212 | 1 | 0 | |
| Adrian | 1,211 | 2 | 0 | |
| Mahnomen | 1,210 | 0 | 0 | |
| New Richland | 1,201 | 5 | 0 | |
| Goodhue | 1,200 | 2 | 0 | |
| Mantorville | 1,197 | 0 | 0 | |
| Grand Meadow | 1,154 | 1 | 0 | |
| Carlton | 1,146 | 0 | 0 | |
| Atwater | 1,133 | 0 | 0 | |
| Hector | 1,127 | 2 | 0 | |
| Tyler | 1,122 | 2 | 0 | |
| Nicollet | 1,117 | 2 | 0 | |
| Truman | 1,115 | 1 | 0 | |
| Elgin | 1,115 | 7 | 0 | |
| Wanamingo | 1,113 | 0 | 0 | |
| Keewatin | 1,068 | 0 | 0 | |
| Taylors Falls | 1,067 | 0 | 0 | |
| Sherburn | 1,058 | 1 | 0 | |
| Morristown | 1,047 | 4 | 0 | |
| Harmony | 1,042 | 0 | 0 | |
| Eden Valley | 1,042 | 0 | 0 | |
| Walker | 1,040 | 0 | 0 | |
| Bird Island | 1,024 | 0 | 0 | |
| Parkers Prairie | 1,023 | 1 | 0 | |
| Madison Lake | 1,017 | 3 | 0 | |
| Baudette | 1,002 | 27 | 0 | |
| Cohasset | 1,000 | 0 | 0 | |
| Buhl | 1,000 | 3 | 0 | |
| Houston | 997 | 3 | 1 | Total Organic Carbon |
| Biwabik | 975 | 4 | 4 | E. coli |
| Nashwauk | 971 | 0 | 0 | |
| Leroy | 959 | 0 | 0 | |
| Watkins | 958 | 0 | 0 | |
| Deer River | 942 | 0 | 0 | |
| Sebeka | 939 | 3 | 0 | |
| Pine River | 939 | 0 | 0 | |
| Mazeppa | 937 | 9 | 0 | |
| Battle Lake | 918 | 1 | 0 | |
| Kimball | 911 | 0 | 0 | |
| Morgan | 896 | 4 | 0 | |
| Gibbon | 890 | 56 | 56 | Barium |
| Henderson | 886 | 4 | 0 | |
| Henning | 882 | 12 | 5 | Selenium |
| Hilltop | 880 | 1 | 0 | |
| Tower | 872 | 11 | 5 | TTHM, Total Haloacetic Acids (HAA5) |
| Onamia | 869 | 4 | 0 | |
| Birchwood | 864 | 0 | 0 | |
| Hallock | 850 | 3 | 0 | |
| Silver Lake | 850 | 4 | 0 | |
| St. Clair | 846 | 0 | 0 | |
| Isle | 845 | 37 | 1 | Disinfection Byproducts |
| Hancock | 845 | 0 | 0 | |
| Clarkfield | 841 | 6 | 0 | |
| Browerville | 836 | 0 | 0 | |
| Lamberton | 828 | 6 | 0 | |
| Blackduck | 826 | 3 | 0 | |
| Walnut Grove | 825 | 0 | 0 | |
| Bovey | 821 | 0 | 0 | |
| Wabasso | 815 | 10 | 0 | |
| Hampton | 811 | 3 | 1 | Gross Alpha |
| Kerkhoven | 806 | 4 | 0 | |
| Deerwood | 805 | 8 | 0 | |
| Dover | 792 | 0 | 0 | |
| Fertile | 789 | 3 | 0 | |
| Westbrook | 785 | 0 | 0 | |
| Claremont | 773 | 11 | 0 | |
| West Concord | 773 | 1 | 0 | |
| Holdingford | 770 | 2 | 0 | |
| Raymond | 765 | 1 | 0 | |
| Rockville | 765 | 0 | 0 | |
| Orem | 750 | 4 | 0 | |
| Belgrade | 745 | 0 | 0 | |
| Ellendale | 737 | 22 | 12 | HAA5 |
| Trimont | 734 | 0 | 0 | |
| Lake Park | 729 | 0 | 0 | |
| Lanesboro | 727 | 0 | 0 | |
| Brownton | 722 | 0 | 0 | |
| Cleveland | 719 | 0 | 0 | |
| Mabel | 715 | 6 | 0 | |
| Karlstad | 713 | 9 | 0 | |
| Twin Valley | 707 | 0 | 0 | |
| Kasota | 704 | 9 | 0 | |
| Hoffman | 703 | 4 | 0 | |
| Buffalo Lake | 703 | 9 | 0 | |
| Marble | 699 | 0 | 0 | |
| Stockton | 697 | 3 | 2 | Total Organic Carbon |
| Clarks Grove | 695 | 0 | 0 | |
| Ottertail | 694 | 0 | 0 | |
| Cass Lake | 691 | 0 | 0 | |
| Heron Lake | 691 | 3 | 0 | |
| Hills | 685 | 1 | 0 | |
| Freeport | 685 | 0 | 0 | |
| Minnesota Lake | 683 | 0 | 0 | |
| Brownsdale | 682 | 0 | 0 | |
| Motley | 680 | 0 | 0 | |
| Greenbush | 680 | 9 | 0 | |
| Adams | 672 | 0 | 0 | |
| Clear Lake | 669 | 16 | 0 | |
| Rollingstone | 664 | 1 | 1 | Total Organic Carbon |
| Elmore | 663 | 0 | 0 | |
| Clarissa | 662 | 0 | 0 | |
| Alden | 661 | 11 | 2 | Disinfection Byproducts |
| Elysian | 656 | 3 | 1 | Total Organic Carbon |
| Graceville | 653 | 1 | 0 | |
| Welcome | 653 | 1 | 0 | |
| Hendricks | 650 | 0 | 0 | |
| Randall | 650 | 0 | 0 | |
| Brooten | 646 | 1 | 0 | |
| Taconite | 644 | 2 | 2 | Gross Alpha |
| Balaton | 639 | 1 | 0 | |
| Loretto | 637 | 0 | 0 | |
| Grove City | 635 | 1 | 0 | |
| Courtland | 635 | 4 | 0 | |
| Hill City | 633 | 2 | 0 | |
| Sabin | 629 | 6 | 2 | Barium |
| Oak Grove | 623 | 1 | 0 | |
| Jasper | 623 | 0 | 0 | |
| Barnum | 621 | 14 | 0 | |
| Evansville | 603 | 0 | 0 | |
| Scottsdale | 600 | 1 | 0 | |
| Green Isle | 599 | 0 | 0 | |
| Butterfield | 586 | 0 | 0 | |
| Mcintosh | 584 | 0 | 0 | |
| Good Thunder | 583 | 2 | 0 | |
| Ironton | 578 | 3 | 2 | Chlorine |
| Cook | 574 | 0 | 0 | |
| Audubon | 570 | 3 | 0 | |
| Stephen | 568 | 0 | 0 | |
| Glenville | 566 | 12 | 2 | HAA5 |
| Browns Valley | 566 | 0 | 0 | |
| Ranier | 565 | 0 | 0 | |
| Kandiyohi | 560 | 0 | 0 | |
| Ivanhoe | 559 | 0 | 0 | |
| Bertha | 557 | 3 | 0 | |
| Hokah | 555 | 6 | 0 | |
| Altura | 553 | 0 | 0 | |
| Halstad | 550 | 0 | 0 | |
| Minnetonka Beach | 547 | 0 | 0 | |
| Littlefork | 542 | 9 | 0 | |
| Eagle Bend | 542 | 2 | 0 | |
| Geneva | 538 | 0 | 0 | |
| Amboy | 535 | 8 | 3 | Total Organic Carbon |
| Argyle | 533 | 1 | 0 | |
| Hamburg | 530 | 0 | 0 | |
| Willernie | 525 | 6 | 0 | |
| Pillager | 523 | 3 | 0 | |
| Lyle | 521 | 17 | 4 | HAA5 |
| Clinton | 520 | 1 | 0 | |
| Laprairie | 520 | 2 | 0 | |
| Maplewood | 515 | 8 | 0 | |
| Cosmos | 513 | 4 | 4 | Barium |
| Lancaster | 511 | 69 | 38 | Barium |
| Brewster | 506 | 4 | 0 | |
| Verndale | 506 | 3 | 3 | Selenium |
| Chicago | 505 | 1 | 0 | |
| Lafayette | 504 | 7 | 7 | TTHM |
| Rothsay | 503 | 1 | 0 | |
| Brandon | 501 | 1 | 0 | |
| Floodwood | 501 | 0 | 0 | |
| East Bethel | 500 | 0 | 0 | |
| Ulen | 500 | 1 | 0 | |
| Prinsburg | 497 | 0 | 0 | |
| Franklin | 496 | 0 | 0 | |
| Carlos | 492 | 2 | 0 | |
| Pennock | 492 | 1 | 0 | |
| Kiester | 491 | 0 | 0 | |
| Sherman | 490 | 0 | 0 | |
| Sacred Heart | 485 | 0 | 0 | |
| Stewart | 482 | 8 | 6 | Barium, TTHM |
| Upsala | 482 | 1 | 0 | |
| Racine | 482 | 2 | 0 | |
| Ashby | 472 | 1 | 0 | |
| Kellogg | 469 | 0 | 0 | |
| Ogilvie | 467 | 11 | 0 | |
| Minnesota City | 464 | 10 | 0 | |
| Ellsworth | 462 | 17 | 9 | Selenium |
| North Oaks | 459 | 0 | 0 | |
| Clearbrook | 458 | 3 | 0 | |
| Skokie | 458 | 0 | 0 | |
| Garfield | 457 | 5 | 0 | |
| New Auburn | 456 | 0 | 0 | |
| Vermillion | 451 | 0 | 0 | |
| Harris | 450 | 0 | 0 | |
| Scandia | 448 | 21 | 1 | Gross Alpha |
| Lynd | 448 | 0 | 0 | |
| Danube | 446 | 7 | 6 | Total Organic Carbon |
| Wykoff | 444 | 3 | 0 | |
| Newfolden | 442 | 11 | 0 | |
| Remer | 434 | 8 | 0 | |
| Lowry | 433 | 10 | 1 | Barium |
| Akeley | 426 | 2 | 0 | |
| Badger | 425 | 12 | 0 | |
| Wood Lake | 423 | 1 | 0 | |
| New Germany | 422 | 0 | 0 | |
| Milan | 418 | 2 | 0 | |
| Nevis | 415 | 12 | 0 | |
| Oklee | 411 | 1 | 0 | |
| Willow River | 410 | 1 | 0 | |
| Fountain | 407 | 0 | 0 | |
| Cedar | 406 | 0 | 0 | |
| Sturgeon Lake | 406 | 0 | 0 | |
| Waubun | 404 | 0 | 0 | |
| Comfrey | 402 | 0 | 0 | |
| Fisher | 401 | 7 | 0 | |
| Rose Creek | 400 | 1 | 0 | |
| Las Vegas | 400 | 6 | 0 | |
| Morton | 400 | 3 | 0 | |
| Chokio | 400 | 0 | 0 | |
| Wrenshall | 399 | 0 | 0 | |
| Bigfork | 397 | 2 | 0 | |
| Mcgregor | 394 | 0 | 0 | |
| Hanska | 393 | 2 | 0 | |
| Maynard | 388 | 0 | 0 | |
| Dexter | 388 | 4 | 0 | |
| Herman | 386 | 3 | 0 | |
| Emmons | 384 | 0 | 0 | |
| Erskine | 384 | 3 | 0 | |
| Underwood | 380 | 0 | 0 | |
| Alvarado | 377 | 0 | 0 | |
| Round Lake | 376 | 0 | 0 | |
| Granada | 375 | 6 | 2 | Total Organic Carbon |
| Barrett | 374 | 0 | 0 | |
| Ghent | 370 | 0 | 0 | |
| Ceylon | 369 | 0 | 0 | |
| Askov | 364 | 9 | 2 | TTHM |
| Bricelyn | 359 | 0 | 0 | |
| Vergas | 358 | 0 | 0 | |
| Randolph | 355 | 31 | 1 | Chlorine |
| Darwin | 350 | 1 | 0 | |
| Wilmont | 344 | 0 | 0 | |
| St. Martin | 343 | 11 | 0 | |
| Rushmore | 342 | 1 | 0 | |
| Foreston | 340 | 1 | 0 | |
| Sanborn | 339 | 3 | 0 | |
| Russell | 338 | 2 | 0 | |
| Plummer | 336 | 25 | 0 | |
| Calumet | 332 | 0 | 0 | |
| Grey Eagle | 330 | 0 | 0 | |
| Swanville | 329 | 4 | 0 | |
| Deer Creek | 329 | 8 | 0 | |
| Vernon Center | 323 | 1 | 0 | |
| Hartland | 321 | 12 | 1 | Stage 2 DBP |
| New Munich | 320 | 2 | 0 | |
| Plato | 319 | 0 | 0 | |
| Vesta | 319 | 0 | 0 | |
| Cyrus | 318 | 3 | 0 | |
| Canton | 316 | 0 | 0 | |
| Finlayson | 315 | 0 | 0 | |
| Greenfield | 313 | 3 | 3 | Total Organic Carbon |
| Buckman | 309 | 1 | 0 | |
| Hackensack | 306 | 0 | 0 | |
| Murdock | 306 | 2 | 0 | |
| Center City | 305 | 3 | 0 | |
| Belview | 300 | 0 | 0 | |
| Middle River | 299 | 4 | 0 | |
| Nerstrand | 299 | 2 | 0 | |
| Beaver Creek | 297 | 1 | 0 | |
| Hollandale | 294 | 10 | 0 | |
| Utica | 293 | 3 | 1 | Selenium |
| Blomkest | 291 | 73 | 0 | |
| Hendrum | 285 | 16 | 0 | |
| Bowlus | 280 | 14 | 4 | Chlorine |
| Gonvick | 276 | 0 | 0 | |
| Eitzen | 276 | 0 | 0 | |
| Hanley Falls | 275 | 1 | 0 | |
| Chandler | 270 | 10 | 0 | |
| Echo | 269 | 2 | 0 | |
| Backus | 267 | 0 | 0 | |
| Little Canada | 266 | 2 | 0 | |
| Rushford Village | 265 | 0 | 0 | |
| Kensington | 264 | 5 | 0 | |
| Kelliher | 259 | 0 | 0 | |
| Freeborn | 259 | 6 | 4 | Barium |
| St. Hilaire | 257 | 2 | 0 | |
| Ostrander | 256 | 2 | 0 | |
| Hewitt | 255 | 2 | 0 | |
| Hayward | 254 | 2 | 2 | HAA5 |
| South Haven | 253 | 14 | 0 | |
| Milroy | 252 | 0 | 0 | |
| Cromwell | 250 | 0 | 0 | |
| Orr | 249 | 0 | 0 | |
| Pemberton | 247 | 4 | 0 | |
| Lake Wilson | 247 | 0 | 0 | |
| Oslo | 242 | 2 | 0 | |
| Pease | 242 | 4 | 0 | |
| Lismore | 237 | 1 | 0 | |
| Lake Lillian | 236 | 44 | 38 | Barium |
| Bigelow | 235 | 2 | 1 | Disinfection Byproducts |
| Callaway | 234 | 0 | 0 | |
| Currie | 226 | 1 | 0 | |
| Gary | 226 | 5 | 5 | Chlorine |
| Lewisville | 225 | 0 | 0 | |
| Climax | 223 | 114 | 38 | Barium |
| Dennison | 220 | 6 | 2 | HAA5 |
| Ruthton | 220 | 0 | 0 | |
| Beardsley | 216 | 1 | 0 | |
| Donnelly | 216 | 2 | 0 | |
| Waldorf | 216 | 0 | 0 | |
| Storden | 215 | 0 | 0 | |
| Magnolia | 214 | 0 | 0 | |
| Peterson | 213 | 0 | 0 | |
| Northrop | 211 | 0 | 0 | |
| Lucan | 210 | 0 | 0 | |
| Leota | 209 | 0 | 0 | |
| Dalton | 209 | 3 | 1 | Barium |
| Hitterdal | 208 | 0 | 0 | |
| Ogema | 206 | 5 | 0 | |
| Easton | 199 | 2 | 0 | |
| Hardwick | 198 | 3 | 0 | |
| Big Falls | 192 | 4 | 0 | |
| Frost | 191 | 2 | 0 | |
| Webster | 190 | 2 | 0 | |
| Okabena | 188 | 3 | 0 | |
| Holland | 187 | 1 | 0 | |
| Kennedy | 181 | 7 | 0 | |
| Winger | 181 | 57 | 57 | Barium |
| Zumbro Falls | 181 | 8 | 0 | |
| Lansing Township | 180 | 0 | 0 | |
| Steen | 180 | 3 | 0 | |
| Porter | 180 | 1 | 0 | |
| Grygla | 179 | 0 | 0 | |
| Felton | 178 | 11 | 0 | |
| Watson | 175 | 5 | 0 | |
| Boyd | 175 | 4 | 0 | |
| Shelly | 174 | 0 | 0 | |
| Winton | 173 | 0 | 0 | |
| Delavan | 171 | 0 | 0 | |
| Millville | 171 | 0 | 0 | |
| Bellechester | 169 | 0 | 0 | |
| Kettle River | 168 | 0 | 0 | |
| Bellingham | 168 | 5 | 0 | |
| Wendell | 167 | 2 | 0 | |
| Dunnell | 167 | 2 | 1 | Chlorine |
| Palisade | 166 | 2 | 1 | Chlorine Dioxide |
| Warba | 162 | 3 | 0 | |
| Iona | 162 | 2 | 0 | |
| Campbell | 159 | 2 | 0 | |
| Waltham | 157 | 9 | 0 | |
| Clements | 157 | 4 | 0 | |
| East Gull Lake | 156 | 2 | 0 | |
| Northome | 156 | 0 | 0 | |
| Kinney | 154 | 0 | 0 | |
| Elkton | 149 | 1 | 0 | |
| Elba | 146 | 0 | 0 | |
| Laporte | 140 | 2 | 0 | |
| Conger | 137 | 0 | 0 | |
| Marietta | 135 | 1 | 0 | |
| Taunton | 135 | 0 | 0 | |
| Garvin | 135 | 1 | 0 | |
| Mapleview | 135 | 5 | 0 | |
| Meadowlands | 135 | 11 | 2 | E. coli |
| Twin Lakes | 134 | 5 | 5 | HAA5 |
| Kilkenny | 134 | 2 | 0 | |
| Brook Park | 133 | 22 | 8 | Total Haloacetic Acids (HAA5), Total Organic Carbon |
| Riverton | 132 | 6 | 1 | Stage 2 DBP |
| Beaver Bay | 130 | 13 | 0 | |
| Ormsby | 129 | 1 | 0 | |
| Bingham Lake | 128 | 0 | 0 | |
| Irvine | 125 | 6 | 0 | |
| Wolverton | 124 | 10 | 0 | |
| Columbus | 123 | 0 | 0 | |
| Marine On St. Croix | 123 | 7 | 0 | |
| Perley | 113 | 2 | 0 | |
| Alpha | 112 | 14 | 3 | Chlorine |
| Avoca | 111 | 2 | 0 | |
| Puposky | 110 | 26 | 1 | Stage 2 DBP |
| Warsaw | 110 | 36 | 16 | HAA5, Total Organic Carbon |
| Mckinley | 110 | 1 | 0 | |
| Degraff | 110 | 0 | 0 | |
| Hammond | 110 | 4 | 0 | |
| Odin | 109 | 3 | 0 | |
| Woodstock | 108 | 3 | 0 | |
| Bloomfield Hills | 100 | 13 | 0 | |
| Goodridge | 100 | 3 | 0 | |
| Fort Worth | 100 | 13 | 3 | Chlorine |
Data Sources
Drinking water data from the EPA Safe Drinking Water Information System (SDWIS). Only active community water systems (CWS) serving 100+ people are included.