Chromium (hexavalent)
Aquarion Water Company of Connecticut - Simsbury System
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 |
|---|---|---|---|---|
| 2013 | 0.379 ppb | 20 | 20 | 0.230 ppb - 0.580 ppb |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2013-06-06 | 201306070152AM | 0.580 ppb |
| 2013-06-06 | 201306070271AM | 0.500 ppb |
| 2013-06-06 | 201306070171AM | 0.230 ppb |
| 2013-06-06 | 201306070252AM | 0.450 ppb |
| 2013-06-06 | 201306070094AM | 0.250 ppb |
| 2013-06-06 | 201306070246AM | 0.490 ppb |
| 2013-06-06 | 201306070248AM | 0.340 ppb |
| 2013-06-06 | 201306070244AM | 0.380 ppb |
| 2013-06-06 | 201306070240AM | 0.280 ppb |
| 2013-06-06 | 201306070150AM | 0.240 ppb |
| 2013-12-04 | 201312050109AM | 0.360 ppb |
| 2013-12-04 | 201312050059AM | 0.430 ppb |
| 2013-12-04 | 201312050185AM | 0.580 ppb |
| 2013-12-04 | 201312050091AM | 0.430 ppb |
| 2013-12-04 | 201312050157AM | 0.290 ppb |
| 2013-12-04 | 201312050285AM | 0.500 ppb |
| 2013-12-04 | 201312050159AM | 0.520 ppb |
| 2013-12-04 | 201312050176AM | 0.240 ppb |
| 2013-12-04 | 201312050155AM | 0.250 ppb |
| 2013-12-04 | 201312050291AM | 0.230 ppb |