Search Water Systems

Browse water quality data by state. Select a state to see all water systems and violation details.

Browse All States & Territories

Region 01

1 systems

No violations

Region 02

2 systems

No violations

Region 05

2 systems

No violations

Region 06

34 systems

No violations

Region 07

2 systems

No violations

Region 08

13 systems

No violations

Region 09

56 systems

No violations

Region 10

9 systems

No violations

AB

2 systems

No violations

Alaska

3,661 systems

47 lead

Alabama

1,873 systems

7 lead

AP

1 systems

No violations

Arkansas

3,972 systems

51 lead

American Samoa

302 systems

No violations

Arizona

4,383 systems

31 lead

BC

3 systems

No violations

California

20,579 systems

142 lead

Colorado

5,105 systems

17 lead

Connecticut

11,255 systems

74 lead

District of Columbia

48 systems

2 lead

Delaware

1,387 systems

32 lead

Florida

19,917 systems

105 lead

Georgia

5,716 systems

50 lead

Guam

21 systems

No violations

Hawaii

237 systems

6 lead

Iowa

5,369 systems

18 lead

Idaho

4,387 systems

21 lead

Illinois

26,675 systems

91 lead

Indiana

9,915 systems

119 lead

Kansas

1,814 systems

23 lead

Kentucky

2,232 systems

1 lead

Louisiana

5,089 systems

40 lead

Massachusetts

3,929 systems

46 lead

Maryland

7,992 systems

56 lead

Maine

6,141 systems

32 lead

Michigan

27,019 systems

161 lead

Minnesota

21,775 systems

109 lead

Missouri

6,167 systems

31 lead

Northern Mariana Islands

223 systems

7 lead

Mississippi

3,209 systems

18 lead

Montana

4,736 systems

28 lead

NB

3 systems

No violations

North Carolina

23,923 systems

494 lead

North Dakota

1,606 systems

5 lead

Nebraska

2,779 systems

7 lead

New Hampshire

4,131 systems

482 lead

New Jersey

14,932 systems

249 lead

New Mexico

2,786 systems

22 lead

Navajo Nation

72 systems

1 lead

NS

1 systems

No violations

Nevada

1,566 systems

10 lead

New York

26,516 systems

153 lead

Ohio

16,365 systems

223 lead

Oklahoma

5,688 systems

29 lead

ON

4 systems

No violations

Oregon

6,071 systems

51 lead

Pennsylvania

22,622 systems

1206 lead

PQ

2 systems

No violations

Puerto Rico

1,000 systems

50 lead

QC

2 systems

No violations

Rhode Island

1,147 systems

30 lead

South Carolina

5,512 systems

65 lead

South Dakota

1,715 systems

4 lead

Tennessee

6,170 systems

12 lead

Texas

16,249 systems

52 lead

Utah

2,385 systems

15 lead

Virginia

9,028 systems

109 lead

U.S. Virgin Islands

1,077 systems

49 lead

Vermont

4,304 systems

43 lead

Washington

10,086 systems

61 lead

Wisconsin

24,118 systems

59 lead

West Virginia

4,357 systems

42 lead

Wyoming

1,877 systems

6 lead