198 cities
Tap water and radon, city by city
Every city links to a full report. Dots show green for fine, amber for worth knowing, red for take action, grey for no data.
Share of covered cities whose utility disinfects with chloramine, which standard shower filters barely remove.
Covered cities on chloramine0%1% to 0%1% to 50%51% to 100%101% or moreNot covered
Every city
| City | Disinfectant | Hardness | Lead | PFAS | Radon |
|---|---|---|---|---|---|
| Anchorage, AK | Chlorine | 6.4 gpg | Not detected | PFOA | Zone 3 |
| Birmingham, AL | Chlorine | 4.5 gpg | 1.8 ppb | Detected | Zone 2 |
| Huntsville, AL | Chlorine | 5.8 gpg | 1 ppb | PFOA, PFOS | Zone 1 |
| Mobile, AL | Chlorine | 1.8 gpg | 1.5 ppb | Not detected | Zone 3 |
| Montgomery, AL | Chlorine | 2.2 gpg | Not detected | Not detected | Zone 2 |
| Little Rock, AR | Chlorine | 2.2 gpg | 1 ppb | Not detected | Zone 3 |
| Chandler, AZ | Chlorine | 8.1 gpg | 1.4 ppb | Detected | Zone 2 |
| Gilbert, AZ | Chlorine | 9.8 gpg | Not detected | PFOS, PFOA | Zone 2 |
| Glendale, AZ | Chlorine | 9.8 gpg | 1.6 ppb | Detected | Zone 2 |
| Mesa, AZ | Chlorine | 8.2 gpg | 5 ppb | Detected | Zone 2 |
| Peoria, AZ | Chlorine | 9.8 gpg | Not detected | PFOA | Zone 2 |
| Phoenix, AZ | Chlorine | 13.9 gpg | 2.7 ppb | Detected | Zone 2 |
| Scottsdale, AZ | Chlorine | 10.1 gpg | 2.3 ppb | Detected | Zone 2 |
| Surprise, AZ | Chlorine | 7.9 gpg | Not detected | Not detected | Zone 2 |
| Tempe, AZ | Chlorine | 10.5 gpg | 4.4 ppb | PFOS, PFOA | Zone 2 |
| Tucson, AZ | Chlorine | 10.5 gpg | 0.6 ppb | Not detected | Zone 2 |
| Anaheim, CA | Mixed | 16.0 gpg | Not detected | PFOS, PFOA | Zone 3 |
| Bakersfield, CA | Chlorine | 2.0 gpg | 1.3 ppb | PFOS | Zone 2 |
| Chula Vista, CA | Chloramine | 12.6 gpg | Not detected | PFOA, PFOS | Zone 3 |
| Corona, CA | Chloramine | 9.0 gpg | 3.7 ppb | Detected | Zone 2 |
| Escondido, CA | Chloramine | 10.0 gpg | 1.1 ppb | Not detected | Zone 3 |
| Fontana, CA | Chlorine | 5.4 gpg | Not detected | Not detected | Zone 2 |
| Fremont, CA | Chloramine | 3.8 gpg | Not detected | Not detected | Zone 2 |
| Fresno, CA | Chlorine | 0.7 gpg | Not detected | PFOA, PFOS | Zone 2 |
| Fullerton, CA | Chloramine | 10.2 gpg | 1.5 ppb | PFOA, PFOS | Zone 3 |
| Garden Grove, CA | Chloramine | 16.6 gpg | Not detected | PFOA, PFOS | Zone 3 |
| Glendale, CA | Mixed | 5.0 gpg | Not detected | PFOS, PFOA | Zone 2 |
| Hayward, CA | Chloramine | 2.6 gpg | Not detected | Not detected | Zone 2 |
| Huntington Beach, CA | Mixed | 7.5 gpg | Not detected | PFOS | Zone 3 |
| Irvine, CA | Chloramine | 5.8 gpg | Not detected | Not detected | Zone 3 |
| Lancaster, CA | Chlorine | 4.7 gpg | 1.8 ppb | Not detected | Zone 2 |
| Long Beach, CA | Chloramine | 10.0 gpg | 1 ppb | Not detected | Zone 2 |
| Los Angeles, CA | Chloramine | 7.1 gpg | 3.9 ppb | Not detected | Zone 2 |
| Modesto, CA | Chlorine | 2.6 gpg | 12 ppb | PFOS, PFOA | Zone 3 |
| Moreno Valley, CA | Chloramine | 7.2 gpg | 2.8 ppb | Not detected | Zone 2 |
| Oakland, CA | Chloramine | 2.0 gpg | Not detected | Not detected | Zone 2 |
| Oceanside, CA | Chloramine | 10.1 gpg | Not detected | Not detected | Zone 3 |
| Ontario, CA | Mixed | 6.1 gpg | 0.6 ppb | PFOA, PFOS | Zone 2 |
| Oxnard, CA | Chloramine | 16.3 gpg | Not detected | Not detected | Zone 1 |
| Palmdale, CA | Chlorine | 3.6 gpg | Not detected | Detected | Zone 2 |
| Pomona, CA | Chlorine | 8.1 gpg | 2.1 ppb | PFOA, PFOS | Zone 2 |
| Rancho Cucamonga, CA | Chlorine | 4.0 gpg | Not detected | Not detected | Zone 2 |
| Riverside, CA | Chlorine | 6.5 gpg | 1 ppb | Detected | Zone 2 |
| Roseville, CA | Chlorine | 1.1 gpg | Not detected | Not detected | Zone 2 |
| Sacramento, CA | Chlorine | 2.6 gpg | Not detected | PFOS, PFOA | Zone 3 |
| Salinas, CA | Chlorine | 6.2 gpg | 1.2 ppb | Not detected | Zone 2 |
| San Bernardino, CA | Chlorine | 4.6 gpg | Not detected | Detected | Zone 2 |
| San Diego, CA | Chloramine | 13.2 gpg | Not detected | Not detected | Zone 3 |
| San Francisco, CA | Chloramine | 1.5 gpg | Not detected | Not detected | Zone 2 |
| San Jose, CA | Mixed | 10.8 gpg | Not detected | PFOS | Zone 2 |
| Santa Ana, CA | Mixed | 8.8 gpg | Not detected | PFOA, PFOS | Zone 3 |
| Santa Clarita, CA | Chloramine | 13.4 gpg | Not detected | PFOA, PFOS | Zone 2 |
| Santa Rosa, CA | Chlorine | 7.1 gpg | 1.3 ppb | Not detected | Zone 3 |
| Stockton, CA | Chloramine | 0.6 gpg | Not detected | PFOS, PFOA | Zone 3 |
| Sunnyvale, CA | Chloramine | 17.4 gpg | Not detected | Not detected | Zone 2 |
| Torrance, CA | Chloramine | 6.5 gpg | Not detected | Not detected | Zone 2 |
| Victorville, CA | Chlorine | 1.0 gpg | Not detected | Not detected | Zone 2 |
| Visalia, CA | Chlorine | 4.3 gpg | Not detected | PFOA, PFOS | Zone 2 |
| Aurora, CO | Chloramine | 5.8 gpg | 2.5 ppb | Detected | Zone 1 |
| Colorado Springs, CO | Chlorine | 2.1 gpg | 5.7 ppb | Not detected | Zone 1 |
| Denver, CO | Chloramine | 5.7 gpg | 3.1 ppb | Not detected | Zone 1 |
| Lakewood, CO | Chloramine | 5.7 gpg | 3.1 ppb | Not detected | Zone 1 |
| Thornton, CO | Chloramine | 5.8 gpg | 2.3 ppb | PFOA, PFOS | Zone 1 |
| Bridgeport, CT | Chlorine | 3.1 gpg | Not detected | PFOS, PFOA | No zone |
| Stamford, CT | Chlorine | 3.1 gpg | Not detected | PFOA | No zone |
| Washington, DC | Chloramine | 6.8 gpg | 2 ppb | Not detected | No zone |
| Cape Coral, FL | Chlorine | 3.5 gpg | 1.4 ppb | Not detected | Zone 3 |
| Coral Springs, FL | Chloramine | 3.0 gpg | 1.1 ppb | PFOS, PFOA | Zone 3 |
| Fort Lauderdale, FL | Chloramine | 2.9 gpg | 4.9 ppb | PFOS, PFOA | Zone 3 |
| Gainesville, FL | Chloramine | 8.2 gpg | 0.7 ppb | Not detected | Zone 2 |
| Hialeah, FL | Chloramine | 12.4 gpg | 0.9 ppb | PFOS, PFOA | Zone 2 |
| Hollywood, FL | Chloramine | 3.0 gpg | 3.5 ppb | PFOA, PFOS | Zone 3 |
| Jacksonville, FL | Chlorine | 11.1 gpg | 1.5 ppb | Not detected | Zone 3 |
| Miami, FL | Chloramine | 14.5 gpg | 3.1 ppb | PFOA, PFOS | Zone 2 |
| Miramar, FL | Chloramine | 1.2 gpg | 1.2 ppb | Not detected | Zone 3 |
| Orlando, FL | Chlorine | 7.0 gpg | 2 ppb | Not detected | Zone 3 |
| Palm Bay, FL | Chloramine | 7.0 gpg | 2.1 ppb | PFOA, PFOS | Zone 3 |
| Pembroke Pines, FL | Chloramine | 2.9 gpg | 0.6 ppb | PFOS, PFOA | Zone 3 |
| Port St. Lucie, FL | Chloramine | No data | 4.6 ppb | Not detected | Zone 3 |
| St. Petersburg, FL | Chloramine | 8.9 gpg | 1.8 ppb | Not detected | Zone 3 |
| Tallahassee, FL | Chlorine | 8.0 gpg | 1.4 ppb | PFOS | Zone 2 |
| Tampa, FL | Chloramine | 8.0 gpg | 1.5 ppb | PFOS, PFOA | Zone 2 |
| Atlanta, GA | Chlorine | 1.4 gpg | 1.4 ppb | Detected | Zone 1 |
| Columbus, GA | Chlorine | 1.6 gpg | 1.4 ppb | PFOS, PFOA | Zone 3 |
| Macon-Bibb County, GA | Chlorine | No data | 1.4 ppb | Not sampled | Zone 3 |
| Savannah, GA | Chlorine | 4.9 gpg | 3.9 ppb | Not detected | Zone 3 |
| Des Moines, IA | Chlorine | 17.3 gpg | Not detected | Not detected | Zone 1 |
| Boise City, ID | Chlorine | 5.2 gpg | 2 ppb | Not detected | Zone 2 |
| Meridian, ID | Chlorine | 5.0 gpg | 3.9 ppb | PFOS | Zone 2 |
| Aurora, IL | Chloramine | 16.8 gpg | 24 ppb | Detected | Zone 1 |
| Chicago, IL | Chlorine | 8.1 gpg | 7 ppb | Not detected | Zone 2 |
| Joliet, IL | Chloramine | 14.3 gpg | 6.5 ppb | Not detected | Zone 2 |
| Naperville, IL | Chlorine | 7.0 gpg | 7.1 ppb | Not detected | Zone 2 |
| Rockford, IL | Chlorine | 19.3 gpg | 7.3 ppb | Detected | Zone 1 |
| Fort Wayne, IN | Chlorine | 5.6 gpg | 2.6 ppb | Not detected | Zone 1 |
| Kansas City, KS | Chloramine | 17.7 gpg | 7.5 ppb | Not detected | Zone 1 |
| Olathe, KS | Chloramine | 8.2 gpg | 11 ppb | Not detected | Zone 1 |
| Overland Park, KS | Chloramine | 7.9 gpg | 6.5 ppb | Not detected | Zone 1 |
| Wichita, KS | Chloramine | 8.1 gpg | 1.4 ppb | Not detected | Zone 2 |
| Lexington, KY | Chloramine | 9.2 gpg | Not detected | Detected | Zone 1 |
| New Orleans, LA | Chloramine | 9.0 gpg | 6 ppb | PFOS, PFOA | Zone 3 |
| Shreveport, LA | Chloramine | 2.7 gpg | 0.9 ppb | Not detected | Zone 3 |
| Boston, MA | Chloramine | 1.0 gpg | 5.9 ppb | Not sampled | Zone 3 |
| Springfield, MA | Chlorine | 1.4 gpg | 3.5 ppb | Not detected | Zone 2 |
| Worcester, MA | Chlorine | 2.4 gpg | 2 ppb | Not detected | Zone 1 |
| Baltimore, MD | Chlorine | 9.9 gpg | 2.7 ppb | Not detected | Zone 2 |
| Detroit, MI | Chlorine | 5.6 gpg | 7.5 ppb | Not detected | Zone 3 |
| Grand Rapids, MI | Chlorine | 8.1 gpg | 7 ppb | Not detected | Zone 2 |
| Minneapolis, MN | Chloramine | 5.2 gpg | 2 ppb | Not detected | Zone 1 |
| St. Paul, MN | Chloramine | 7.3 gpg | 8 ppb | Not detected | Zone 1 |
| Kansas City, MO | Chloramine | 6.8 gpg | 2.1 ppb | Not detected | Zone 1 |
| Springfield, MO | Chlorine | 7.0 gpg | 5.1 ppb | PFOS | Zone 2 |
| St. Louis, MO | Chloramine | 14.2 gpg | 1.8 ppb | Not detected | Zone 2 |
| Jackson, MS | Chloramine | 2.2 gpg | 4.1 ppb | Not detected | Zone 3 |
| Cary, NC | Chloramine | 1.9 gpg | Not detected | Detected | Zone 2 |
| Charlotte, NC | Chlorine | 1.8 gpg | Not detected | Not detected | Zone 3 |
| Durham, NC | Chloramine | 1.7 gpg | Not detected | PFOS, PFOA | Zone 3 |
| Fayetteville, NC | Chloramine | 1.7 gpg | Not detected | PFOA, PFOS | Zone 3 |
| Greensboro, NC | Chloramine | 2.1 gpg | Not detected | PFOS, PFOA | Zone 3 |
| Raleigh, NC | Chloramine | 1.5 gpg | Not detected | PFOS | Zone 2 |
| Winston-Salem, NC | Chlorine | 1.4 gpg | Not detected | Not detected | Zone 2 |
| Lincoln, NE | Chloramine | 12.6 gpg | 4.5 ppb | Not detected | Zone 1 |
| Omaha, NE | Chloramine | 8.7 gpg | 12.3 ppb | Not detected | Zone 1 |
| Elizabeth, NJ | Chloramine | 3.2 gpg | 2 ppb | PFOA | Zone 2 |
| Jersey City, NJ | Chlorine | 4.3 gpg | 5.7 ppb | PFOS, PFOA | Zone 2 |
| Newark, NJ | Chlorine | 2.2 gpg | Not detected | PFOA | Zone 2 |
| Paterson, NJ | Chlorine | 3.7 gpg | 2.4 ppb | PFOA, PFOS | Zone 2 |
| Albuquerque, NM | Chlorine | 8.0 gpg | Not detected | Not detected | Zone 1 |
| Henderson, NV | Chlorine | 16.5 gpg | 3.8 ppb | Not detected | Zone 3 |
| Las Vegas, NV | Chlorine | 16.4 gpg | 2.1 ppb | Not detected | Zone 3 |
| North Las Vegas, NV | Chlorine | 13.6 gpg | 1.4 ppb | Not detected | Zone 3 |
| Reno, NV | Chlorine | 6.0 gpg | Not detected | PFOA, PFOS | Zone 2 |
| Buffalo, NY | Chlorine | 5.1 gpg | 4 ppb | Not detected | Zone 1 |
| New York, NY | Chlorine | 1.8 gpg | 10 ppb | Not detected | Zone 3 |
| Rochester, NY | Chlorine | 6.1 gpg | 6.8 ppb | Not detected | Zone 2 |
| Syracuse, NY | Chlorine | 6.4 gpg | 12 ppb | Not detected | Zone 1 |
| Yonkers, NY | Chlorine | 2.0 gpg | 7.1 ppb | Not detected | Zone 3 |
| Akron, OH | Chlorine | 6.8 gpg | 2.7 ppb | PFOA | Zone 1 |
| Cincinnati, OH | Chlorine | 6.6 gpg | 2.1 ppb | PFOS | Zone 1 |
| Cleveland, OH | Chlorine | 6.5 gpg | Not detected | Not detected | Zone 2 |
| Columbus, OH | Chlorine | 5.7 gpg | 1.2 ppb | PFOA | Zone 1 |
| Toledo, OH | Chlorine | 4.4 gpg | Not detected | Not detected | Zone 2 |
| Oklahoma City, OK | Chloramine | 9.2 gpg | Not detected | Not detected | Zone 3 |
| Tulsa, OK | Chloramine | 6.4 gpg | 1.2 ppb | Not detected | Zone 3 |
| Eugene, OR | Chlorine | 1.1 gpg | 4.5 ppb | Not detected | Zone 3 |
| Portland, OR | Chloramine | 1.1 gpg | 4.9 ppb | Not detected | Zone 2 |
| Salem, OR | Chlorine | 0.9 gpg | 2 ppb | Not detected | Zone 3 |
| Philadelphia, PA | Chloramine | 7.4 gpg | 2 ppb | PFOA, PFOS | Zone 3 |
| Pittsburgh, PA | Chlorine | 5.8 gpg | 2 ppb | Not detected | Zone 1 |
| Providence, RI | Chlorine | 2.5 gpg | 0.2 ppb | Not detected | Zone 2 |
| Charleston, SC | Chloramine | 3.3 gpg | 3.5 ppb | PFOA, PFOS | Zone 3 |
| Columbia, SC | Chloramine | 2.2 gpg | 5 ppb | PFOS, PFOA | Zone 3 |
| Sioux Falls, SD | Chloramine | 7.0 gpg | 3 ppb | Not detected | Zone 1 |
| Chattanooga, TN | Chlorine | 4.1 gpg | 1 ppb | Detected | Zone 2 |
| Clarksville, TN | Chlorine | 4.1 gpg | 1 ppb | Not detected | Zone 2 |
| Knoxville, TN | Chlorine | 5.3 gpg | 0.6 ppb | Detected | Zone 1 |
| Memphis, TN | Chlorine | 2.4 gpg | 4.7 ppb | Not detected | Zone 3 |
| Murfreesboro, TN | Chlorine | 5.9 gpg | 0.6 ppb | PFOA | Zone 1 |
| Amarillo, TX | Chlorine | 6.2 gpg | 1 ppb | Not detected | Zone 2 |
| Arlington, TX | Chloramine | 5.3 gpg | 1 ppb | PFOS | Zone 3 |
| Austin, TX | Chloramine | 4.0 gpg | Not detected | PFOS | Zone 3 |
| Brownsville, TX | Chloramine | 12.3 gpg | Not detected | PFOS, PFOA | Zone 3 |
| Corpus Christi, TX | Chloramine | 11.6 gpg | 1.7 ppb | Not detected | Zone 3 |
| Dallas, TX | Chloramine | 6.5 gpg | 1.1 ppb | PFOA, PFOS | Zone 3 |
| Denton, TX | Chloramine | 3.6 gpg | 1.5 ppb | Detected | Zone 3 |
| El Paso, TX | Chlorine | 8.2 gpg | 1.2 ppb | PFOS | Zone 3 |
| Fort Worth, TX | Chloramine | 6.3 gpg | 3 ppb | PFOA, PFOS | Zone 3 |
| Frisco, TX | Chloramine | 8.7 gpg | 2.3 ppb | Detected | Zone 3 |
| Garland, TX | Chloramine | 8.5 gpg | 1.2 ppb | Detected | Zone 3 |
| Grand Prairie, TX | Chloramine | 8.1 gpg | 1.2 ppb | PFOA, PFOS | Zone 3 |
| Houston, TX | Chloramine | 5.6 gpg | 5 ppb | Not detected | Zone 3 |
| Irving, TX | Chloramine | 4.7 gpg | 1 ppb | PFOA | Zone 3 |
| Killeen, TX | Chloramine | 8.4 gpg | 1 ppb | Detected | Zone 3 |
| Laredo, TX | Chloramine | 13.0 gpg | 1.4 ppb | Not detected | Zone 3 |
| Lubbock, TX | Chloramine | 12.0 gpg | 1.4 ppb | Not detected | Zone 2 |
| McAllen, TX | Chloramine | 12.3 gpg | 2.3 ppb | Not detected | Zone 3 |
| McKinney, TX | Chloramine | 7.8 gpg | 0.9 ppb | Not detected | Zone 3 |
| Mesquite, TX | Chloramine | 8.3 gpg | 1.4 ppb | Detected | Zone 3 |
| Midland, TX | Chloramine | 22.2 gpg | 1.5 ppb | PFOS | Zone 3 |
| Pasadena, TX | Chloramine | 4.0 gpg | 3.7 ppb | PFOS | Zone 3 |
| Plano, TX | Chloramine | 8.8 gpg | 1.4 ppb | Detected | Zone 3 |
| San Antonio, TX | Chlorine | 10.5 gpg | 1.6 ppb | Detected | Zone 3 |
| Waco, TX | Chloramine | 6.1 gpg | 1.9 ppb | Not detected | Zone 3 |
| Salt Lake City, UT | Chlorine | 13.5 gpg | 2.5 ppb | PFOS | Zone 2 |
| West Valley City, UT | Chlorine | 13.9 gpg | 1.9 ppb | Not detected | Zone 2 |
| Alexandria, VA | Chloramine | 6.8 gpg | Not detected | Detected | Zone 3 |
| Chesapeake, VA | Chloramine | 1.9 gpg | 1.1 ppb | Not detected | Zone 3 |
| Newport News, VA | Chloramine | 4.0 gpg | Not detected | PFOS | Zone 3 |
| Norfolk, VA | Chloramine | 2.7 gpg | Not detected | PFOS | Zone 3 |
| Richmond, VA | Chloramine | 3.9 gpg | 3.6 ppb | Not detected | Zone 3 |
| Virginia Beach, VA | Chloramine | 3.0 gpg | Not detected | Not detected | Zone 3 |
| Bellevue, WA | Chlorine | 2.0 gpg | No data | Not detected | Zone 3 |
| Seattle, WA | Chlorine | 1.8 gpg | 1.6 ppb | Not detected | Zone 3 |
| Spokane, WA | Chlorine | 7.7 gpg | 2 ppb | PFOS | Zone 1 |
| Tacoma, WA | Chlorine | 1.3 gpg | Not detected | Detected | Zone 3 |
| Vancouver, WA | Chlorine | 5.8 gpg | 2.2 ppb | PFOS, PFOA | Zone 1 |
| Madison, WI | Chlorine | 19.9 gpg | 1.8 ppb | Detected | Zone 1 |
| Milwaukee, WI | Chloramine | 7.9 gpg | 5.3 ppb | Not detected | Zone 2 |