Chromium (hexavalent)
Washington Township Mua-schoo
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 | 0.143 ppb | 32 | 29 | ND - 0.370 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 |
|---|---|---|
| 2015-01-18 | 311125P | 0.250 ppb |
| 2015-01-18 | 311122P | 0.170 ppb |
| 2015-01-18 | 311126P | 0.260 ppb |
| 2015-01-19 | 111041P | ND |
| 2015-01-19 | 311119P | 0.230 ppb |
| 2015-01-19 | 111039P | 0.190 ppb |
| 2015-01-19 | 311123P | 0.180 ppb |
| 2015-01-19 | 311120P | 0.170 ppb |
| 2015-01-19 | 111036P | 0.170 ppb |
| 2015-01-19 | 111035P | 0.170 ppb |
| 2015-01-19 | 111040P | 0.150 ppb |
| 2015-01-19 | 311124P | ND |
| 2015-01-19 | 311121P | 0.1000 ppb |
| 2015-01-19 | 111038P | 0.0800 ppb |
| 2015-01-19 | 111034P | 0.120 ppb |
| 2015-01-19 | 111037P | 0.0600 ppb |
| 2015-07-20 | 114615P | ND |
| 2015-07-20 | 314699P | 0.184 ppb |
| 2015-07-20 | 114608P | 0.0760 ppb |
| 2015-07-20 | 314700P | 0.0640 ppb |
| 2015-07-20 | 314696P | 0.184 ppb |
| 2015-07-20 | 114612P | 0.0380 ppb |
| 2015-07-21 | 114611P | 0.0620 ppb |
| 2015-07-21 | 314701P | 0.220 ppb |
| 2015-07-21 | 114609P | 0.177 ppb |
| 2015-07-21 | 314694P | 0.151 ppb |
| 2015-07-21 | 114614P | 0.115 ppb |
| 2015-07-21 | 314697P | 0.129 ppb |
| 2015-07-22 | 314698P | 0.370 ppb |
| 2015-07-22 | 114613P | 0.179 ppb |
| 2015-07-22 | 114610P | 0.167 ppb |
| 2015-07-22 | 314695P | 0.150 ppb |