US Tap Water Quality
by State

Connecticut · CT

1.9 ppb

170

92%

B

Maine · ME

2.1 ppb

285

97%

A

Massachusetts · MA

2.55 ppb

326

100%

B

New Hampshire · NH

22 ppb

204

99%

B

New Jersey · NJ

2 ppb

572

98%

B

New York · NY

2.6 ppb

977

96%

A

Pennsylvania · PA

3 ppb

2,264

98%

B

Rhode Island · RI

1.4 ppb

40

100%

B

Vermont · VT

2.2 ppb

193

100%

A

Alabama · AL

1.5 ppb

492

98%

A

Arkansas · AR

2 ppb

610

95%

A

District of Columbia · DC

2 ppb

1

100%

A

Florida · FL

1.5 ppb

902

98%

B

Georgia · GA

2.2 ppb

617

99%

A

Kentucky · KY

2 ppb

550

99%

A

Louisiana · LA

2 ppb

440

78%

C

Maryland · MD

2.74 ppb

421

99%

A

Mississippi · MS

1.3 ppb

398

98%

A

North Carolina · NC

4 ppb

734

99%

A

South Carolina · SC

1.6 ppb

398

100%

A

Tennessee · TN

1 ppb

485

99%

A

Virginia · VA

2 ppb

543

99%

A

West Virginia · WV

1.1 ppb

396

75%

C

Illinois · IL

2.8 ppb

1,297

94%

B

Indiana · IN

2.3 ppb

541

97%

A

Iowa · IA

2 ppb

845

99%

A

Kansas · KS

2.3 ppb

694

98%

A

Michigan · MI

2 ppb

1,181

97%

A

Minnesota · MN

2 ppb

1,663

98%

A

Missouri · MO

2.16 ppb

1,036

99%

A

Nebraska · NE

2 ppb

480

99%

B

North Dakota · ND

2.04 ppb

326

98%

A

Ohio · OH

2 ppb

1,048

97%

B

South Dakota · SD

2 ppb

459

96%

A

Wisconsin · WI

2.06 ppb

1,279

97%

A

Arizona · AZ

1.25 ppb

339

81%

B

New Mexico · NM

1.95 ppb

400

79%

C

Oklahoma · OK

2 ppb

798

98%

B

Texas · TX

1.6 ppb

1,772

89%

A

Alaska · AK

2.33 ppb

224

90%

C

California · CA

2.28 ppb

1,434

89%

A

Colorado · CO

2 ppb

407

98%

B

Hawaii · HI

0.94 ppb

141

100%

A

Idaho · ID

2 ppb

211

95%

B

Montana · MT

2 ppb

306

97%

A

Nevada · NV

1.9 ppb

107

92%

B

Oregon · OR

2.48 ppb

368

97%

A

Utah · UT

2.2 ppb

319

98%

B

Washington · WA

2 ppb

603

99%

A

Wyoming · WY

2 ppb

158

96%

A