Chromium (hexavalent)
Pico Rivera 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).
45
Samples
0
Samples exceeding legal limit (MCL)
29
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.268 ppb | 26 | 19 | ND - 0.940 ppb |
| 2014 | 0.200 ppb | 19 | 10 | ND - 1.10 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 |
|---|---|---|
| 2013-01-24 | 440-36162-1 | 0.940 ppb |
| 2013-01-24 | 440-36162-21 | 0.320 ppb |
| 2013-01-24 | 440-36162-31 | ND |
| 2013-01-24 | 440-36162-17 | 0.0710 ppb |
| 2013-01-24 | 440-36162-9 | 0.670 ppb |
| 2013-01-24 | 440-36162-7 | 0.480 ppb |
| 2013-01-24 | 440-36162-29 | ND |
| 2013-01-24 | 440-36162-27 | 0.250 ppb |
| 2013-01-24 | 440-36162-25 | ND |
| 2013-01-24 | 440-36162-19 | 0.0330 ppb |
| 2013-01-24 | 440-36162-11 | ND |
| 2013-01-24 | 440-36162-23 | 0.160 ppb |
| 2013-01-24 | 440-36162-13 | ND |
| 2013-01-24 | 440-36162-3 | 0.450 ppb |
| 2013-01-24 | 440-36162-5 | 0.260 ppb |
| 2013-07-30 | 2869017 | 0.280 ppb |
| 2013-07-30 | 2868977 | ND |
| 2013-07-30 | 2868961 | 0.320 ppb |
| 2013-07-30 | 2868945 | 0.290 ppb |
| 2013-07-30 | 2868954 | 0.280 ppb |
| 2013-07-30 | 2869026 | 0.380 ppb |
| 2013-07-30 | 2869008 | 0.410 ppb |
| 2013-07-30 | 2868973 | 0.280 ppb |
| 2013-07-30 | 2869038 | 0.640 ppb |
| 2013-07-30 | 2868999 | 0.450 ppb |
| 2013-07-30 | 2868990 | ND |
| 2014-01-31 | 4A31062-03A | 0.260 ppb |
| 2014-01-31 | 4A31062-01A | ND |
| 2014-06-04 | 4F04050-03A | 0.410 ppb |
| 2014-06-04 | 4F04050-01A | 0.690 ppb |
| 2014-06-19 | 4F19089-01A | ND |
| 2014-07-30 | 4G30066-05A | 0.280 ppb |
| 2014-07-30 | 4G30066-11A | 0.0380 ppb |
| 2014-07-30 | 4G30066-01A | 0.130 ppb |
| 2014-07-30 | 4G30066-03A | 0.280 ppb |
| 2014-07-30 | 4G30066-07A | 0.130 ppb |
| 2014-07-30 | 4G30066-09A | 0.480 ppb |
| 2014-12-17 | 9588-002-0954 | ND |
| 2014-12-17 | 9588-006-0948 | ND |
| 2014-12-18 | 9588-005-1119 | ND |
| 2014-12-18 | 9588-007-1000 | ND |
| 2014-12-18 | 9588-008-0937 | ND |
| 2014-12-18 | 9588-009-1024 | ND |
| 2014-12-18 | 9588-004-1125 | ND |
| 2014-12-18 | 9588-012-1050 | 1.10 ppb |