Where we tested

Volunteers from 36 states plus Washington, D.C., teamed up with CR and the Guardian to test drinking water quality from 120 sites across the country.

Alexandria, VA

Allen, TX

Altavista, VA

Anchorage, AK

Apache Junction, AZ

Arizona City, AZ

Austin, TX

Baltimore, MD

Beaverton, OR

Bennington, VT

Bethlehem, PA

Bloomfield, NJ

Boise, ID

Boston, MA

Bountiful, UT

Brooklyn, NY

Broomfield, CO

Cazenovia, NY

Cedar Falls, IA

Clearfield, UT

Colorado Springs, CO

Columbia Falls, MT

Conifer, CO

Dayton, OH

Del Norte, CO

Denver, CO

Des Moines, IA

Detroit, MI (2)

Dexter, MO

Duvall, WA

East Lansing, MI

East Orange, NJ

Eden, NY

Edwardsville, IL

El Dorado, KS

Fall City, WA

Floresville, TX

Florida, NY

Fort Morgan, CO

Fort Smith, AR

Fox Island, WA

Ft. Pierce, FL

Gahanna, OH

Guthrie, OK

Hartford, CT

High Bridge, NJ

Highlands Ranch, CO

Holyoke, MA

Houston, TX (2)

Huxley, IA

Issaquah, WA

Jacksonville, FL

Jensen Beach, FL

Joplin, MO

Kansas City, MO

Lakeland, FL

Lawrence Twp, NJ

Lawton, OK

Lincoln, NE

Littleton, MA

Lompoc, CA

Manchester, NH

Merced, CA

Millsboro, DE

Milwaukee, WI

Milwaukie, OR

Minden, NV

Minneapolis, MN

Montclair, NJ

Monument, CO

Nashville, TN

New Britain, CT

New Lebanon, OH

New Rochelle, NY

Newtown, PA

Oakhurst, CA

Ocala, FL

Oceanside, CA

Odenton, MD

Oxnard, CA

Pensacola, FL

Pittsboro, NC (2)

Portland, OR (3)

River Head, NY

Rockville, MD

Rocky Hill, NJ

Round Rock, TX

Salina, KS

Salt Lake City, UT

San Antonio, TX

Santa Anna, CA

Scottsdale, AZ

Seattle, WA

Sedona, AZ

Sellersville, PA

Sharpsville, PA

Shelburne, VT

Simsbury, CT

Southampton, PA

Southport, NC

Spring, TX

Sunderland, MA

Tampa, FL

The Woodlands, TX

Trinity, AL

Washington, MO

Washington, D.C.

Washington, IA

Wayne, NE

Westerville, OH

Westfield, MA

Westminster, CA

Williamsburg, MA

Ypsilanti, MI (2)

Where we tested

Volunteers from 36 states plus Washington, D.C., teamed up with CR and the Guardian to test drinking water quality from 120 sites across the country.

Alexandria, VA

Allen, TX

Altavista, VA

Anchorage, AK

Apache Junction, AZ

Arizona City, AZ

Austin, TX

Baltimore, MD

Beaverton, OR

Bennington, VT

Bethlehem, PA

Bloomfield, NJ

Boise, ID

Boston, MA

Bountiful, UT

Brooklyn, NY

Broomfield, CO

Cazenovia, NY

Cedar Falls, IA

Clearfield, UT

Colorado Springs, CO

Columbia Falls, MT

Conifer, CO

Dayton, OH

Del Norte, CO

Denver, CO

Des Moines, IA

Detroit, MI (2)

Dexter, MO

Duvall, WA

East Lansing, MI

East Orange, NJ

Eden, NY

Edwardsville, IL

El Dorado, KS

Fall City, WA

Floresville, TX

Florida, NY

Fort Morgan, CO

Fort Smith, AR

Fox Island, WA

Ft. Pierce, FL

Gahanna, OH

Guthrie, OK

Hartford, CT

High Bridge, NJ

Highlands Ranch, CO

Holyoke, MA

Houston, TX (2)

Huxley, IA

Issaquah, WA

Jacksonville, FL

Jensen Beach, FL

Joplin, MO

Kansas City, MO

Lakeland, FL

Lawrence Twp, NJ

Lawton, OK

Lincoln, NE

Littleton, MA

Lompoc, CA

Manchester, NH

Merced, CA

Millsboro, DE

Milwaukee, WI

Milwaukie, OR

Minden, NV

Minneapolis, MN

Montclair, NJ

Monument, CO

Nashville, TN

New Britain, CT

New Lebanon, OH

New Rochelle, NY

Newtown, PA

Oakhurst, CA

Ocala, FL

Oceanside, CA

Odenton, MD

Oxnard, CA

Pensacola, FL

Pittsboro, NC (2)

Portland, OR (3)

River Head, NY

Rockville, MD

Rocky Hill, NJ

Round Rock, TX

Salina, KS

Salt Lake City, UT

San Antonio, TX

Santa Anna, CA

Scottsdale, AZ

Seattle, WA

Sedona, AZ

Sellersville, PA

Sharpsville, PA

Shelburne, VT

Simsbury, CT

Southampton, PA

Southport, NC

Spring, TX

Sunderland, MA

Tampa, FL

The Woodlands, TX

Trinity, AL

Washington, MO

Washington, D.C.

Washington, IA

Wayne, NE

Westerville, OH

Westfield, MA

Westminster, CA

Williamsburg, MA

Ypsilanti, MI (2)

Where we tested

Volunteers from 36 states plus Washington, D.C., teamed up with CR and the Guardian to test drinking water quality from 120 sites across the country.

Alexandria, VA

Allen, TX

Altavista, VA

Anchorage, AK

Apache Junction, AZ

Arizona City, AZ

Austin, TX

Baltimore, MD

Beaverton, OR

Bennington, VT

Bethlehem, PA

Bloomfield, NJ

Boise, ID

Boston, MA

Bountiful, UT

Brooklyn, NY

Broomfield, CO

Cazenovia, NY

Cedar Falls, IA

Clearfield, UT

Colorado Springs, CO

Columbia Falls, MT

Conifer, CO

Dayton, OH

Del Norte, CO

Denver, CO

Des Moines, IA

Detroit, MI (2)

Dexter, MO

Duvall, WA

East Lansing, MI

East Orange, NJ

Eden, NY

Edwardsville, IL

El Dorado, KS

Fall City, WA

Floresville, TX

Florida, NY

Fort Morgan, CO

Fort Smith, AR

Fox Island, WA

Ft. Pierce, FL

Gahanna, OH

Guthrie, OK

Hartford, CT

High Bridge, NJ

Highlands Ranch, CO

Holyoke, MA

Houston, TX (2)

Huxley, IA

Issaquah, WA

Jacksonville, FL

Jensen Beach, FL

Joplin, MO

Kansas City, MO

Lakeland, FL

Lawrence Twp, NJ

Lawton, OK

Lincoln, NE

Littleton, MA

Lompoc, CA

Manchester, NH

Merced, CA

Millsboro, DE

Milwaukee, WI

Milwaukie, OR

Minden, NV

Minneapolis, MN

Montclair, NJ

Monument, CO

Nashville, TN

New Britain, CT

New Lebanon, OH

New Rochelle, NY

Newtown, PA

Oakhurst, CA

Ocala, FL

Oceanside, CA

Odenton, MD

Oxnard, CA

Pensacola, FL

Pittsboro, NC (2)

Portland, OR (3)

River Head, NY

Rockville, MD

Rocky Hill, NJ

Round Rock, TX

Salina, KS

Salt Lake City, UT

San Antonio, TX

Santa Anna, CA

Scottsdale, AZ

Seattle, WA

Sedona, AZ

Sellersville, PA

Sharpsville, PA

Shelburne, VT

Simsbury, CT

Southampton, PA

Southport, NC

Spring, TX

Sunderland, MA

Tampa, FL

The Woodlands, TX

Trinity, AL

Washington, MO

Washington, D.C.

Washington, IA

Wayne, NE

Westerville, OH

Westfield, MA

Westminster, CA

Williamsburg, MA

Ypsilanti, MI (2)

Where we tested

Volunteers from 36 states plus Washington, D.C., teamed up with CR and the Guardian to test drinking water quality from 120 sites across the country.

Alexandria, VA

Allen, TX

Altavista, VA

Anchorage, AK

Apache Junction, AZ

Arizona City, AZ

Austin, TX

Baltimore, MD

Beaverton, OR

Bennington, VT

Bethlehem, PA

Bloomfield, NJ

Boise, ID

Boston, MA

Bountiful, UT

Brooklyn, NY

Broomfield, CO

Cazenovia, NY

Cedar Falls, IA

Clearfield, UT

Colorado Springs, CO

Columbia Falls, MT

Conifer, CO

Dayton, OH

Del Norte, CO

Denver, CO

Des Moines, IA

Detroit, MI (2)

Dexter, MO

Duvall, WA

East Lansing, MI

East Orange, NJ

Eden, NY

Edwardsville, IL

El Dorado, KS

Fall City, WA

Floresville, TX

Florida, NY

Fort Morgan, CO

Fort Smith, AR

Fox Island, WA

Ft. Pierce, FL

Gahanna, OH

Guthrie, OK

Hartford, CT

High Bridge, NJ

Highlands Ranch, CO

Holyoke, MA

Houston, TX (2)

Huxley, IA

Issaquah, WA

Jacksonville, FL

Jensen Beach, FL

Joplin, MO

Kansas City, MO

Lakeland, FL

Lawrence Twp, NJ

Lawton, OK

Lincoln, NE

Littleton, MA

Lompoc, CA

Manchester, NH

Merced, CA

Millsboro, DE

Milwaukee, WI

Milwaukie, OR

Minden, NV

Minneapolis, MN

Montclair, NJ

Monument, CO

Nashville, TN

New Britain, CT

New Lebanon, OH

New Rochelle, NY

Newtown, PA

Oakhurst, CA

Ocala, FL

Oceanside, CA

Odenton, MD

Oxnard, CA

Pensacola, FL

Pittsboro, NC (2)

Portland, OR (3)

River Head, NY

Rockville, MD

Rocky Hill, NJ

Round Rock, TX

Salina, KS

Salt Lake City, UT

San Antonio, TX

Santa Anna, CA

Scottsdale, AZ

Seattle, WA

Sedona, AZ

Sellersville, PA

Sharpsville, PA

Shelburne, VT

Simsbury, CT

Southampton, PA

Southport, NC

Spring, TX

Sunderland, MA

Tampa, FL

The Woodlands, TX

Trinity, AL

Washington, MO

Washington, D.C.

Washington, IA

Wayne, NE

Westerville, OH

Westfield, MA

Westminster, CA

Williamsburg, MA

Ypsilanti, MI (2)

Where we tested

Volunteers from 36 states plus Washington, D.C., teamed up with CR and the Guardian to test drinking water quality from 120 sites across the country.

Alexandria, VA

Allen, TX

Altavista, VA

Anchorage, AK

Apache Junction, AZ

Arizona City, AZ

Austin, TX

Baltimore, MD

Beaverton, OR

Bennington, VT

Bethlehem, PA

Bloomfield, NJ

Boise, ID

Boston, MA

Bountiful, UT

Brooklyn, NY

Broomfield, CO

Cazenovia, NY

Cedar Falls, IA

Clearfield, UT

Colorado Springs, CO

Columbia Falls, MT

Conifer, CO

Dayton, OH

Del Norte, CO

Denver, CO

Des Moines, IA

Detroit, MI (2)

Dexter, MO

Duvall, WA

East Lansing, MI

East Orange, NJ

Eden, NY

Edwardsville, IL

El Dorado, KS

Fall City, WA

Floresville, TX

Florida, NY

Fort Morgan, CO

Fort Smith, AR

Fox Island, WA

Ft. Pierce, FL

Gahanna, OH

Guthrie, OK

Hartford, CT

High Bridge, NJ

Highlands Ranch, CO

Holyoke, MA

Houston, TX (2)

Huxley, IA

Issaquah, WA

Jacksonville, FL

Jensen Beach, FL

Joplin, MO

Kansas City, MO

Lakeland, FL

Lawrence Twp, NJ

Lawton, OK

Lincoln, NE

Littleton, MA

Lompoc, CA

Manchester, NH

Merced, CA

Millsboro, DE

Milwaukee, WI

Milwaukie, OR

Minden, NV

Minneapolis, MN

Montclair, NJ

Monument, CO

Nashville, TN

New Britain, CT

New Lebanon, OH

New Rochelle, NY

Newtown, PA

Oakhurst, CA

Ocala, FL

Oceanside, CA

Odenton, MD

Oxnard, CA

Pensacola, FL

Pittsboro, NC (2)

Portland, OR (3)

River Head, NY

Rockville, MD

Rocky Hill, NJ

Round Rock, TX

Salina, KS

Salt Lake City, UT

San Antonio, TX

Santa Anna, CA

Scottsdale, AZ

Seattle, WA

Sedona, AZ

Sellersville, PA

Sharpsville, PA

Shelburne, VT

Simsbury, CT

Southampton, PA

Southport, NC

Spring, TX

Sunderland, MA

Tampa, FL

The Woodlands, TX

Trinity, AL

Washington, MO

Washington, D.C.

Washington, IA

Wayne, NE

Westerville, OH

Westfield, MA

Westminster, CA

Williamsburg, MA

Ypsilanti, MI (2)