Chromium (hexavalent)
City of White Settlement
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).
35
Samples
0
Samples exceeding legal limit (MCL)
13
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.0159 ppb | 33 | 11 | ND - 0.122 ppb |
| 2015 | 0.101 ppb | 2 | 2 | 0.0949 ppb - 0.107 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 |
|---|---|---|
| 2014-05-19 | 4E23044-07 | ND |
| 2014-05-19 | 4E23044-02 | ND |
| 2014-05-19 | 4E23044-03 | ND |
| 2014-05-19 | 4E23044-04 | ND |
| 2014-05-19 | 4E23044-09 | ND |
| 2014-05-19 | 4E23044-01 | ND |
| 2014-05-19 | 4E23044-08 | ND |
| 2014-05-19 | 4E23044-14 | ND |
| 2014-05-19 | 4E23044-13 | 0.0350 ppb |
| 2014-05-19 | 4E23044-11 | ND |
| 2014-05-19 | 4E23044-10 | 0.0315 ppb |
| 2014-05-19 | 4E23044-12 | 0.0329 ppb |
| 2014-05-19 | 4E23044-16 | ND |
| 2014-05-19 | 4E23044-15 | ND |
| 2014-05-19 | 4E23044-06 | 0.0355 ppb |
| 2014-05-19 | 4E23044-05 | ND |
| 2014-08-12 | 4H19012-01 | 0.0681 ppb |
| 2014-08-12 | 4H19012-02 | 0.122 ppb |
| 2014-11-18 | 4K21021-03 | ND |
| 2014-11-18 | 4K21021-07 | 0.0444 ppb |
| 2014-11-18 | 4K21021-02 | ND |
| 2014-11-18 | 4K21021-04 | ND |
| 2014-11-18 | 4K21021-01 | ND |
| 2014-11-18 | 4K21021-08 | ND |
| 2014-11-18 | 4K21021-05 | ND |
| 2014-11-18 | 4K21021-06 | ND |
| 2014-11-18 | 4K21021-12 | 0.0439 ppb |
| 2014-11-18 | 4K21021-09 | ND |
| 2014-11-18 | 4K21021-11 | 0.0414 ppb |
| 2014-11-18 | 4K21021-13 | ND |
| 2014-11-18 | 4K21021-14 | 0.0384 ppb |
| 2014-11-18 | 4K21021-15 | ND |
| 2014-11-18 | 4K21021-10 | 0.0320 ppb |
| 2015-02-18 | 5B20008-01 | 0.0949 ppb |
| 2015-02-18 | 5B20008-02 | 0.107 ppb |