Chromium (hexavalent)
Tarpon Springs Water 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).
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | 0.166 ppb | 21 | 20 | ND - 0.620 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 |
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 | Result |
---|---|
2013-02-12 | 0.0380 ppb |
2013-02-12 | 0.610 ppb |
2013-02-12 | 0.0770 ppb |
2013-02-12 | 0.210 ppb |
2013-02-12 | 0.0850 ppb |
2013-02-12 | 0.0930 ppb |
2013-02-12 | 0.130 ppb |
2013-02-26 | 0.0590 ppb |
2013-05-20 | 0.170 ppb |
2013-05-20 | ND |
2013-08-13 | 0.360 ppb |
2013-08-13 | 0.620 ppb |
2013-08-13 | 0.0750 ppb |
2013-08-13 | 0.220 ppb |
2013-08-13 | 0.180 ppb |
2013-08-28 | 0.120 ppb |
2013-08-28 | 0.120 ppb |
2013-08-28 | 0.0760 ppb |
2013-08-28 | 0.0830 ppb |
2013-11-18 | 0.0900 ppb |
2013-11-19 | 0.0610 ppb |