Chromium (hexavalent)
City of Pearland
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).
44
Samples
0
Samples exceeding legal limit (MCL)
16
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.0364 ppb | 24 | 9 | ND - 0.313 ppb |
| 2015 | 0.0141 ppb | 20 | 7 | ND - 0.0476 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 | Lab ID | Result |
|---|---|---|
| 2014-07-22 | 4G29036-03 | ND |
| 2014-07-22 | 4G29036-17 | 0.0472 ppb |
| 2014-07-22 | 4G29036-21 | ND |
| 2014-07-22 | 4G29036-20 | ND |
| 2014-07-22 | 4G29036-18 | ND |
| 2014-07-22 | 4G29036-22 | ND |
| 2014-07-22 | 4G29036-15 | ND |
| 2014-07-22 | 4G29036-14 | ND |
| 2014-07-22 | 4G29036-16 | 0.0454 ppb |
| 2014-07-22 | 4G29036-19 | ND |
| 2014-07-22 | 4G29036-13 | 0.0505 ppb |
| 2014-07-22 | 4G29036-09 | ND |
| 2014-07-22 | 4G29036-08 | ND |
| 2014-07-22 | 4G29036-10 | ND |
| 2014-07-22 | 4G29036-12 | 0.0355 ppb |
| 2014-07-22 | 4G29036-11 | ND |
| 2014-07-22 | 4G29036-04 | ND |
| 2014-07-22 | 4G29036-01 | 0.0312 ppb |
| 2014-07-22 | 4G29036-07 | ND |
| 2014-07-22 | 4G29036-02 | 0.0749 ppb |
| 2014-07-22 | 4G29036-05 | ND |
| 2014-07-22 | 4G29036-06 | 0.0333 ppb |
| 2014-10-14 | 4J21019-02 | 0.242 ppb |
| 2014-10-14 | 4J21019-01 | 0.313 ppb |
| 2015-01-14 | 5A16014-10 | 0.0446 ppb |
| 2015-01-14 | 5A16014-01 | 0.0411 ppb |
| 2015-01-14 | 5A16014-05 | 0.0400 ppb |
| 2015-01-14 | 5A16014-07 | ND |
| 2015-01-14 | 5A16014-06 | ND |
| 2015-01-14 | 5A16014-02 | 0.0311 ppb |
| 2015-01-14 | 5A16014-03 | ND |
| 2015-01-14 | 5A16014-09 | ND |
| 2015-01-14 | 5A16014-11 | ND |
| 2015-01-14 | 5A16014-08 | ND |
| 2015-01-14 | 5A16014-15 | ND |
| 2015-01-14 | 5A16014-04 | ND |
| 2015-01-14 | 5A16014-17 | ND |
| 2015-01-14 | 5A16014-16 | ND |
| 2015-01-14 | 5A16014-14 | 0.0476 ppb |
| 2015-01-14 | 5A16014-13 | 0.0421 ppb |
| 2015-01-14 | 5A16014-12 | 0.0347 ppb |
| 2015-01-14 | 5A16014-18 | ND |
| 2015-04-16 | 5D22012-02 | ND |
| 2015-04-16 | 5D22012-01 | ND |