Chromium (hexavalent)
Parkland Light & 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).
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | 0.158 ppb | 10 | 9 | ND - 0.400 ppb |
2014 | 0.146 ppb | 14 | 12 | ND - 0.400 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 |
---|---|---|
2013-10-14 | 201310150087AM | 0.150 ppb |
2013-10-14 | 201310150065AM | 0.170 ppb |
2013-10-14 | 201310150041AM | 0.0380 ppb |
2013-10-14 | 201310150077AM | 0.220 ppb |
2013-10-14 | 201310150101AM | 0.180 ppb |
2013-10-14 | 201310150081AM | 0.1000 ppb |
2013-10-15 | 201310160198AM | ND |
2013-10-15 | 201310160202AM | 0.180 ppb |
2013-10-15 | 201310160196AM | 0.400 ppb |
2013-10-15 | 201310160194AM | 0.140 ppb |
2014-04-01 | 201404020528AM | 0.0460 ppb |
2014-04-01 | 201404020449AM | 0.190 ppb |
2014-04-01 | 201404020435AM | 0.180 ppb |
2014-04-01 | 201404020442AM | 0.110 ppb |
2014-04-03 | 201404040294AM | 0.400 ppb |
2014-04-03 | 201404040258AM | ND |
2014-04-03 | 201404040256AM | 0.150 ppb |
2014-04-03 | 201404040254AM | 0.220 ppb |
2014-04-03 | 201404040307AM | 0.130 ppb |
2014-04-03 | 201404040355AM | ND |
2014-04-07 | 201404080583AM | 0.180 ppb |
2014-04-07 | 201404080577AM | 0.190 ppb |
2014-10-02 | 201410030192AM | 0.180 ppb |
2014-10-02 | 201410030196AM | 0.0730 ppb |