Chromium (hexavalent)
Vera Water & Power
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).
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2015 | 0.163 ppb | 24 | 24 | 0.0890 ppb - 0.342 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 |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2015-07-13 | WA97-SE1-15-14867-33218 | 0.124 ppb |
| 2015-07-13 | WA97-SE1-15-14867-33217 | 0.178 ppb |
| 2015-07-13 | WA97-SE1-15-14867-33215 | 0.151 ppb |
| 2015-07-13 | WA97-SE1-15-14867-33216 | 0.154 ppb |
| 2015-07-13 | WA97-SE1-15-14867-33219 | 0.162 ppb |
| 2015-07-13 | WA97-SE1-15-14867-33214 | 0.160 ppb |
| 2015-07-13 | WA97-SE1-15-14867-33223 | 0.177 ppb |
| 2015-07-13 | WA97-SE1-15-14867-33222 | 0.155 ppb |
| 2015-07-13 | WA97-SE1-15-14867-33224 | 0.169 ppb |
| 2015-07-13 | WA97-SE1-15-14867-33221 | 0.176 ppb |
| 2015-07-13 | WA97-SE1-15-14867-33220 | 0.155 ppb |
| 2015-07-13 | WA97-SE1-15-14867-33213 | 0.149 ppb |
| 2015-12-02 | WA97-SE2-15-26413-59105 | 0.124 ppb |
| 2015-12-02 | WA97-SE2-15-26413-59103 | 0.160 ppb |
| 2015-12-02 | WA97-SE2-15-26413-59106 | 0.147 ppb |
| 2015-12-02 | WA97-SE2-15-26413-59102 | 0.143 ppb |
| 2015-12-02 | WA97-SE2-15-26413-59104 | 0.342 ppb |
| 2015-12-02 | WA97-SE2-15-26413-59107 | 0.156 ppb |
| 2015-12-03 | WA97-SE2-15-26413-59108 | 0.164 ppb |
| 2015-12-03 | WA97-SE2-15-26413-59109 | 0.198 ppb |
| 2015-12-03 | WA97-SE2-15-26413-59113 | 0.159 ppb |
| 2015-12-03 | WA97-SE2-15-26413-59112 | 0.156 ppb |
| 2015-12-03 | WA97-SE2-15-26413-59110 | 0.0890 ppb |
| 2015-12-03 | WA97-SE2-15-26413-59111 | 0.162 ppb |