Chromium (hexavalent)
Avon Water Company
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).
32
Samples
0
Samples exceeding legal limit (MCL)
32
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.453 ppb | 16 | 16 | 0.140 ppb - 1.000 ppb |
| 2014 | 0.443 ppb | 16 | 16 | 0.150 ppb - 0.980 ppb |
| 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 |
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 |
|---|---|---|
| 2013-07-27 | 201307310232AM | 0.410 ppb |
| 2013-07-29 | 201307310230AM | 0.410 ppb |
| 2013-07-29 | 201307310252AM | 0.940 ppb |
| 2013-07-29 | 201307310318AM | 0.420 ppb |
| 2013-07-30 | 201307310322AM | 0.470 ppb |
| 2013-07-30 | 201308010339AM | 0.450 ppb |
| 2013-07-30 | 201307310228AM | 0.660 ppb |
| 2013-07-30 | 201307310234AM | 0.230 ppb |
| 2013-07-30 | 201307310247AM | 0.190 ppb |
| 2013-07-31 | 201308010418AM | 0.410 ppb |
| 2013-07-31 | 201308010405AM | 0.740 ppb |
| 2013-07-31 | 201308010397AM | 0.180 ppb |
| 2013-07-31 | 201308010341AM | 0.160 ppb |
| 2013-07-31 | 201308010335AM | 1.000 ppb |
| 2013-07-31 | 201308010421AM | 0.440 ppb |
| 2013-08-08 | 201308090201AM | 0.140 ppb |
| 2014-01-20 | 201401210075AM | 0.390 ppb |
| 2014-01-20 | 201401210077AM | 0.380 ppb |
| 2014-01-20 | 201401210079AM | 0.480 ppb |
| 2014-01-20 | 201401210111AM | 0.940 ppb |
| 2014-01-20 | 201401210081AM | 0.400 ppb |
| 2014-01-20 | 201401210109AM | 0.360 ppb |
| 2014-01-20 | 201401210083AM | 0.380 ppb |
| 2014-01-27 | 201401280240AM | 0.380 ppb |
| 2014-01-27 | 201401280268AM | 0.670 ppb |
| 2014-01-27 | 201401280228AM | 0.170 ppb |
| 2014-01-27 | 201401280264AM | 0.150 ppb |
| 2014-01-27 | 201401280232AM | 0.980 ppb |
| 2014-01-27 | 201401280221AM | 0.430 ppb |
| 2014-01-27 | 201401280266AM | 0.390 ppb |
| 2014-01-27 | 201401280211AM | 0.380 ppb |
| 2014-02-12 | 201402130357AM | 0.210 ppb |