Chromium (hexavalent)
Lake Hemet Municipal Water District
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).
46
Samples
0
Samples exceeding legal limit (MCL)
33
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.591 ppb | 18 | 17 | ND - 1.60 ppb |
| 2015 | 0.516 ppb | 16 | 14 | ND - 2.00 ppb |
| 2016 | ND | 1 | 0 | ND |
| 2017 | 0.250 ppb | 10 | 2 | ND - 1.30 ppb |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 1 | 0 | ND |
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 |
|---|---|---|
| 2014-06-25 | 4790-050-1100 | 0.260 ppb |
| 2014-07-10 | B4G1214-09 | 0.460 ppb |
| 2014-07-10 | B4G1214-05 | 0.0660 ppb |
| 2014-07-10 | B4G1214-07 | 0.490 ppb |
| 2014-07-10 | B4G1214-01 | 0.260 ppb |
| 2014-07-10 | B4G1214-03 | 0.420 ppb |
| 2014-07-17 | B4G1968-01 | 0.830 ppb |
| 2014-07-17 | B4G1968-03 | 0.170 ppb |
| 2014-07-17 | B4G1968-05 | 0.340 ppb |
| 2014-07-17 | B4G1968-07 | 0.430 ppb |
| 2014-07-24 | B4G2695-05 | 0.0540 ppb |
| 2014-07-24 | B4G2695-07 | 1.10 ppb |
| 2014-07-24 | B4G2695-03 | ND |
| 2014-07-24 | B4G2695-01 | 1.60 ppb |
| 2014-07-29 | B4G2980-07 | 1.000 ppb |
| 2014-07-29 | B4G2980-03 | 0.850 ppb |
| 2014-07-29 | B4G2980-01 | 1.20 ppb |
| 2014-07-29 | B4G2980-05 | 1.10 ppb |
| 2015-01-06 | B5A0266-03 | 0.230 ppb |
| 2015-01-06 | B5A0266-01 | 0.450 ppb |
| 2015-01-06 | B5A0266-05 | 0.440 ppb |
| 2015-01-13 | B5A1051-01 | 0.0530 ppb |
| 2015-01-13 | B5A1051-05 | 0.220 ppb |
| 2015-01-13 | B5A1051-03 | ND |
| 2015-01-19 | B5A1673-03 | 0.540 ppb |
| 2015-01-19 | B5A1673-05 | 0.450 ppb |
| 2015-01-19 | B5A1673-09 | 0.170 ppb |
| 2015-01-19 | B5A1673-07 | 0.520 ppb |
| 2015-01-19 | B5A1673-01 | 0.0550 ppb |
| 2015-01-27 | B5A2400-01 | 1.10 ppb |
| 2015-01-27 | B5A2400-03 | 1.10 ppb |
| 2015-01-27 | B5A2400-05 | 0.930 ppb |
| 2015-01-27 | B5A2400-07 | ND |
| 2015-07-16 | B5G1708-01 | 2.00 ppb |
| 2016-08-08 | 3761-050-0840 | ND |
| 2017-03-08 | 3761-036-0905 | 1.30 ppb |
| 2017-04-05 | 3761-003-0910 | 1.20 ppb |
| 2017-05-10 | 3761-018-1025 | ND |
| 2017-05-15 | 3761-030-1440 | ND |
| 2017-05-23 | 3761-014-1045 | ND |
| 2017-06-26 | 3761-032-1520 | ND |
| 2017-09-01 | 3761-014-0955 | ND |
| 2017-09-05 | 3761-028-1050 | ND |
| 2017-09-05 | 3761-012-1035 | ND |
| 2017-09-27 | 3761-019-0845 | ND |
| 2019-08-20 | 3761-050-0830 | ND |