Chromium (hexavalent)
Altoona Water Authority
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).
42
Samples
0
Samples exceeding legal limit (MCL)
41
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.100 ppb | 10 | 9 | ND - 0.300 ppb |
| 2014 | 0.105 ppb | 32 | 32 | 0.0430 ppb - 0.330 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 |
|---|---|---|
| 2013-11-18 | 201311190119AM | 0.0750 ppb |
| 2013-11-18 | 201311190109AM | 0.110 ppb |
| 2013-11-18 | 201311190134AM | 0.0770 ppb |
| 2013-11-18 | 201311190095AM | 0.0480 ppb |
| 2013-11-19 | 201311200339AM | 0.0760 ppb |
| 2013-11-19 | 201311200384AM | 0.0810 ppb |
| 2013-11-19 | 201311200331AM | 0.160 ppb |
| 2013-11-19 | 201311200627AM | 0.0760 ppb |
| 2013-11-19 | 201311200425AM | 0.300 ppb |
| 2013-11-19 | 201311200367AM | ND |
| 2014-02-25 | 201402260726AM | 0.0750 ppb |
| 2014-02-25 | 201402260667AM | 0.150 ppb |
| 2014-02-25 | 201402260624AM | 0.0430 ppb |
| 2014-02-25 | 201402260842AM | 0.0490 ppb |
| 2014-02-25 | 201402260732AM | 0.280 ppb |
| 2014-02-25 | 201402260697AM | 0.0750 ppb |
| 2014-02-26 | 201402270305AM | 0.0580 ppb |
| 2014-02-26 | 201402270369AM | 0.140 ppb |
| 2014-02-26 | 201402270296AM | 0.0760 ppb |
| 2014-02-26 | 201402270315AM | 0.0690 ppb |
| 2014-02-26 | 201402270331AM | 0.120 ppb |
| 2014-02-26 | 201402270177AM | 0.0450 ppb |
| 2014-05-27 | 201405280255AM | 0.230 ppb |
| 2014-05-27 | 201405280262AM | 0.1000 ppb |
| 2014-05-27 | 201405280308AM | 0.330 ppb |
| 2014-05-27 | 201405280302AM | 0.0630 ppb |
| 2014-05-28 | 201405290390AM | 0.0850 ppb |
| 2014-05-28 | 201405290463AM | 0.1000 ppb |
| 2014-05-28 | 201405290423AM | 0.110 ppb |
| 2014-05-28 | 201405290394AM | 0.110 ppb |
| 2014-05-28 | 201405290427AM | 0.0800 ppb |
| 2014-05-28 | 201405290639AM | 0.0840 ppb |
| 2014-08-20 | 201408210518AM | 0.0970 ppb |
| 2014-08-20 | 201408210520AM | 0.110 ppb |
| 2014-08-20 | 201408210522AM | 0.0450 ppb |
| 2014-08-21 | 201408220523AM | 0.110 ppb |
| 2014-08-21 | 201408220521AM | 0.0740 ppb |
| 2014-08-21 | 201408220519AM | 0.0670 ppb |
| 2014-08-21 | 201408220555AM | 0.0740 ppb |
| 2014-08-21 | 201408220452AM | 0.0530 ppb |
| 2014-08-21 | 201408220529AM | 0.130 ppb |
| 2014-09-29 | 201409300395AM | 0.120 ppb |