Chromium (hexavalent)
Meriden Water Division
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).
43
Samples
0
Samples exceeding legal limit (MCL)
37
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.141 ppb | 7 | 7 | 0.0700 ppb - 0.220 ppb |
| 2014 | 0.127 ppb | 36 | 30 | ND - 0.300 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 |
|---|---|---|
| 2013-01-08 | 2762405 | 0.180 ppb |
| 2013-01-08 | 2762397 | 0.220 ppb |
| 2013-04-09 | 2806658 | 0.150 ppb |
| 2013-07-09 | 2854697 | 0.130 ppb |
| 2013-07-09 | 2854610 | 0.0700 ppb |
| 2013-10-08 | 2910004 | 0.140 ppb |
| 2013-10-08 | 2909988 | 0.1000 ppb |
| 2014-02-11 | 2971671 | 0.0400 ppb |
| 2014-02-11 | 2971708 | ND |
| 2014-02-11 | 2971746 | 0.0800 ppb |
| 2014-02-11 | 2971759 | 0.0900 ppb |
| 2014-02-11 | 2971681 | 0.110 ppb |
| 2014-03-11 | 2990050 | 0.110 ppb |
| 2014-03-11 | 2990190 | 0.140 ppb |
| 2014-03-11 | 2990144 | 0.130 ppb |
| 2014-03-11 | 2990274 | 0.240 ppb |
| 2014-03-11 | 2990231 | 0.130 ppb |
| 2014-03-11 | 2990128 | 0.0900 ppb |
| 2014-03-12 | 2990248 | 0.220 ppb |
| 2014-03-25 | 2997722 | 0.0700 ppb |
| 2014-05-14 | 3026124 | 0.1000 ppb |
| 2014-05-14 | 3026047 | 0.160 ppb |
| 2014-05-14 | 3026110 | 0.0900 ppb |
| 2014-05-14 | 3026083 | 0.0400 ppb |
| 2014-05-14 | 3026052 | ND |
| 2014-08-12 | 3081385 | ND |
| 2014-08-14 | 3083468 | ND |
| 2014-08-14 | 3083481 | 0.300 ppb |
| 2014-08-14 | 3083500 | 0.180 ppb |
| 2014-08-14 | 3083486 | 0.220 ppb |
| 2014-09-09 | 3100346 | 0.140 ppb |
| 2014-09-09 | 3100356 | 0.290 ppb |
| 2014-09-09 | 3100394 | 0.140 ppb |
| 2014-09-09 | 3100415 | 0.280 ppb |
| 2014-09-09 | 3100341 | 0.0900 ppb |
| 2014-09-09 | 3100410 | 0.280 ppb |
| 2014-09-09 | 3100400 | 0.140 ppb |
| 2014-09-09 | 3100371 | 0.0900 ppb |
| 2014-11-12 | 3137938 | ND |
| 2014-11-12 | 3137927 | ND |
| 2014-11-12 | 3137948 | 0.250 ppb |
| 2014-12-16 | 3157194 | 0.120 ppb |
| 2014-12-16 | 3157205 | 0.220 ppb |