chromium-6 is a chemical contaminant that is a potential threat to human health.
| Norman | 97.38 µg/L (on 10/16/2013) | OK |
|---|---|---|
| Kingman Municipal Water | 79 µg/L (on 5/11/2015) | AZ |
| AZ American Water Co. - Agua Fria | 62 µg/L (on 3/12/2013) | AZ |
| City of Phoenix | 54 µg/L (on 2/12/2014) | AZ |
| Moore | 54 µg/L (on 12/7/2015) | OK |
| Edmond PWA - Arcadia | 50.90 µg/L (on 7/21/2015) | OK |
| University of California - Davis | 47 µg/L (on 3/10/2015) | CA |
| City of Los Banos | 42 µg/L (on 3/11/2015) | CA |
| City of Davis | 41 µg/L (on 8/13/2014) | CA |
| City of Surprise - Mountain Vista | 39 µg/L (on 9/19/2014) | AZ |
| Pinal Valley Water System | 37 µg/L (on 2/5/2014) | AZ |
| City of Peoria | 36 µg/L (on 1/12/2015) | AZ |
| City of Scottsdale | 36 µg/L (on 2/10/2014) | AZ |
| Soquel Creek Water District | 35 µg/L (on 8/13/2013) | CA |
| Town of Buckeye Sundance | 33 µg/L (on 6/11/2014) | AZ |
| City of Kerman | 31 µg/L (on 11/27/2013) | CA |
| AZ American Water Co. - Paradise Valley | 30.06 µg/L (on 12/18/2013) | AZ |
| Mustang | 29.90 µg/L (on 7/16/2014) | OK |
| Goodyear Water Department | 27 µg/L (on 3/18/2015) | AZ |
| Guanica Urbano | 26.2510 µg/L (on 6/22/2013) | PR |
| City of Glendale | 26 µg/L (on 6/3/2013) | AZ |
| City of Patterson | 26 µg/L (on 10/23/2013) | CA |
| City of Woodland | 26 µg/L (on 10/8/2013) | CA |
| GU Waterworks Authority - Northern System | 26 µg/L (on 3/4/2015) | GU |
| Vaya Chin Intertie | 25.1 µg/L (on 2/24/2014) | 09 |
| City of Mesa | 24 µg/L (on 5/9/2013) | AZ |
| Twenty-nine Palms Water District | 24 µg/L (on 12/12/2013) | CA |
| Tinker AFB Bio-Env. Eng. | 23.80 µg/L (on 9/4/2013) | OK |
| Valencia Water Co. - Town Division | 22 µg/L (on 4/28/2015) | AZ |
| AZ American Water Co. - Sun City | 21.98 µg/L (on 8/12/2013) | AZ |
| Coachella VWD - Cove Community | 20 µg/L (on 2/10/2015) | CA |
| City of Coachella | 20 µg/L (on 10/8/2014) | CA |
| City of Vacaville | 20 µg/L (on 12/4/2013) | CA |
| City of Newman Water Department | 20 µg/L (on 5/8/2013) | CA |
| Harwich Water Department | 20 µg/L (on 4/22/2015) | MA |
| City of Chandler | 19 µg/L (on 2/13/2014) | AZ |
| City of Banning | 19 µg/L (on 7/16/2013) | CA |
| Indio Water Authority | 19 µg/L (on 4/2/2014) | CA |
| Oklahoma University | 18.80 µg/L (on 5/4/2015) | OK |
| Salt River Public Works | 18 µg/L (on 8/25/2015) | 09 |
| City of Hollister | 18 µg/L (on 2/20/2013) | CA |
| Hesperia Water District | 18 µg/L (on 1/14/2014) | CA |
| City of Tracy | 18 µg/L (on 5/18/2015) | CA |
| City of Watsonville | 18 µg/L (on 2/24/2015) | CA |
| Town of Gilbert | 17 µg/L (on 4/23/2013) | AZ |
| Mission Springs Water District | 17 µg/L (on 7/23/2013) | CA |
| Phelan Pinon Hills CSD | 17 µg/L (on 11/10/2014) | CA |
| Midwest City | 16.40 µg/L (on 5/4/2015) | OK |
| Liberty Water LPSCO | 16 µg/L (on 7/24/2014) | AZ |
| Prescott Valley WD Upper | 16 µg/L (on 12/8/2014) | AZ |