Chromium (hexavalent)
City of Puyallup
Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).
36
Samples
0
Samples exceeding legal limit (MCL)
28
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | 0.159 ppb | 36 | 28 | ND - 0.360 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.02 ppb
The EWG Health Guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-02-03 | 201502050842AM | 0.120 ppb |
| 2015-02-03 | 201502050880AM | 0.1000 ppb |
| 2015-02-03 | 201502050688AM | 0.110 ppb |
| 2015-02-03 | 201502050731AM | 0.200 ppb |
| 2015-02-03 | 201502050727AM | 0.200 ppb |
| 2015-02-03 | 201502050764AM | 0.180 ppb |
| 2015-02-03 | 201502050905AM | 0.330 ppb |
| 2015-02-03 | 201502050735AM | 0.260 ppb |
| 2015-02-03 | 201502050400AM | 0.340 ppb |
| 2015-02-03 | 201502050717AM | 0.330 ppb |
| 2015-02-03 | 201502050855AM | ND |
| 2015-02-03 | 201502050725AM | ND |
| 2015-02-03 | 201502050455AM | 0.180 ppb |
| 2015-02-03 | 201502050875AM | 0.260 ppb |
| 2015-02-03 | 201502050883AM | 0.260 ppb |
| 2015-05-05 | 201505070577AM | 0.0500 ppb |
| 2015-05-05 | 201505070594AM | 0.0770 ppb |
| 2015-08-06 | 201508070135AM | ND |
| 2015-08-06 | 201508070195AM | 0.180 ppb |
| 2015-08-06 | 201508070106AM | 0.360 ppb |
| 2015-08-06 | 201508070151AM | ND |
| 2015-08-06 | 201508070198AM | 0.320 ppb |
| 2015-08-06 | 201508110453AM | ND |
| 2015-08-06 | 201508070121AM | 0.0570 ppb |
| 2015-08-06 | 201508070201AM | 0.0550 ppb |
| 2015-08-06 | 201508070232AM | 0.320 ppb |
| 2015-08-06 | 201508070125AM | 0.340 ppb |
| 2015-08-06 | 201508070108AM | ND |
| 2015-08-06 | 201508070215AM | 0.0340 ppb |
| 2015-08-06 | 201508070155AM | 0.340 ppb |
| 2015-08-06 | 201508070114AM | ND |
| 2015-08-06 | 201508070229AM | 0.330 ppb |
| 2015-08-06 | 201508070118AM | 0.180 ppb |
| 2015-09-29 | 201509300232AM | ND |
| 2015-11-17 | 201511180504AM | 0.0970 ppb |
| 2015-11-17 | 201511180474AM | 0.1000 ppb |