Chromium (hexavalent)
Yarmouth Water Department
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).
52
Samples
0
Samples exceeding legal limit (MCL)
46
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | N/A | 0 | 0 | N/A |
2015 | 0.208 ppb | 52 | 46 | ND - 0.590 ppb |
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 |
---|---|
2015-03-10 | 0.0900 ppb |
2015-03-10 | 0.0600 ppb |
2015-03-10 | 0.0900 ppb |
2015-03-10 | 0.0900 ppb |
2015-03-10 | 0.0600 ppb |
2015-03-10 | 0.0900 ppb |
2015-03-11 | 0.590 ppb |
2015-03-11 | 0.220 ppb |
2015-03-11 | 0.590 ppb |
2015-03-11 | 0.210 ppb |
2015-03-11 | 0.330 ppb |
2015-03-11 | 0.160 ppb |
2015-03-11 | 0.330 ppb |
2015-03-11 | 0.150 ppb |
2015-03-12 | 0.310 ppb |
2015-03-12 | ND |
2015-03-12 | ND |
2015-03-12 | 0.300 ppb |
2015-03-12 | 0.290 ppb |
2015-03-12 | 0.440 ppb |
2015-03-12 | 0.310 ppb |
2015-03-12 | ND |
2015-03-12 | 0.440 ppb |
2015-03-12 | ND |
2015-09-08 | 0.120 ppb |
2015-09-08 | 0.310 ppb |
2015-09-08 | 0.310 ppb |
2015-09-08 | 0.120 ppb |
2015-09-09 | 0.0800 ppb |
2015-09-09 | 0.1000 ppb |
2015-09-09 | 0.0900 ppb |
2015-09-09 | 0.0800 ppb |
2015-09-14 | 0.230 ppb |
2015-09-14 | 0.0900 ppb |
2015-09-14 | 0.170 ppb |
2015-09-14 | 0.220 ppb |
2015-09-14 | 0.150 ppb |
2015-09-14 | 0.1000 ppb |
2015-09-15 | 0.210 ppb |
2015-09-15 | 0.560 ppb |
2015-09-15 | 0.210 ppb |
2015-09-15 | 0.590 ppb |
2015-09-15 | 0.320 ppb |
2015-09-15 | 0.290 ppb |
2015-09-16 | 0.180 ppb |
2015-09-16 | ND |
2015-09-16 | 0.180 ppb |
2015-09-16 | 0.0300 ppb |
2015-09-16 | ND |
2015-09-16 | 0.0400 ppb |
2015-09-17 | 0.440 ppb |
2015-09-17 | 0.430 ppb |