Chromium (total)
California Water Service Company-Lancaster
NOTE: California Water Service Company-Lancaster purchases water from Antelope Valley - East Kern Water Agency which is required to test for chromium (total). Sample information shown below was taken by Antelope Valley - East Kern Water Agency.
Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 20 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 12 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EPA Maximum Contaminant
Level (MCL): 100 ppb
The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.
ppb = parts per billion
All test results
NOTE: California Water Service Company-Lancaster purchases water from Antelope Valley - East Kern Water Agency which is required to test for chromium (total). Sample information shown below was taken by Antelope Valley - East Kern Water Agency.
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-28 | CA1910045_019_019-201802280928 | ND |
| 2018-03-14 | CA1910045_014_014-201803140905 | ND |
| 2018-03-21 | CA1910045_023_023-201803210830 | ND |
| 2018-03-28 | CA1910045_013_013-201803280850 | ND |
| 2018-04-11 | CA1910045_010_010-201804110814 | ND |
| 2018-04-11 | CA1910045_009_009-201804110855 | ND |
| 2018-04-11 | CA1910045_007_007-201804110750 | ND |
| 2018-05-09 | CA1910045_015_015-201805091032 | ND |
| 2018-05-09 | CA1910045_012_012-201805090954 | ND |
| 2018-05-23 | CA1910045_019_019-201805230947 | ND |
| 2018-06-20 | CA1910045_023_023-201806201023 | ND |
| 2018-06-20 | CA1910045_024_024-201806200811 | ND |
| 2018-08-08 | CA1910045_011_011-201808080715 | ND |
| 2018-08-08 | CA1910045_019_019-201808081055 | ND |
| 2018-11-06 | CA1910045_006_006-201811060730 | ND |
| 2018-11-06 | CA1910045_005_005-201811061110 | ND |
| 2018-11-06 | CA1910045_004_004-201811061105 | ND |
| 2018-11-06 | CA1910045_001_001-201811061110 | ND |
| 2018-11-06 | CA1910045_002_002-201811061110 | ND |
| 2018-11-06 | CA1910045_003_003-201811061110 | ND |
| 2019-11-13 | CA1910045_006_006-201911130833 | ND |
| 2019-11-13 | CA1910045_005_005-201911130900 | ND |
| 2019-11-13 | CA1910045_004_004-201911131202 | ND |
| 2019-11-13 | CA1910045_003_003-201911130900 | ND |
| 2019-11-13 | CA1910045_002_002-201911130900 | ND |
| 2019-11-13 | CA1910045_001_001-201911130853 | ND |
| 2020-02-12 | CA1910045_017_017-202002121200 | ND |
| 2020-02-12 | CA1910045_022_022-202002120805 | ND |
| 2020-02-12 | CA1910045_021_021-202002121035 | ND |
| 2020-02-20 | CA1910045_018_018-202002201000 | ND |
| 2020-03-11 | CA1910045_020_020-202003110930 | 2.30 ppb |
| 2020-11-09 | CA1910045_005_005-202011091220 | ND |
| 2020-11-09 | CA1910045_002_002-202011091220 | ND |
| 2020-11-09 | CA1910045_004_004-202011091240 | ND |
| 2020-11-09 | CA1910045_006_006-202011090929 | ND |
| 2020-11-09 | CA1910045_001_001-202011091250 | ND |
| 2020-11-09 | CA1910045_003_003-202011091220 | ND |
| 2021-03-10 | CA1910045_014_014-202103101105 | ND |
| 2021-03-10 | CA1910045_013_013-202103101030 | ND |
| 2021-04-14 | CA1910045_007_007-202104140955 | ND |
| 2021-04-14 | CA1910045_008_008-202104141115 | ND |
| 2021-04-14 | CA1910045_009_009-202104141200 | ND |
| 2021-04-14 | CA1910045_010_010-202104141225 | ND |
| 2021-05-12 | CA1910045_012_012-202105121015 | ND |
| 2021-05-12 | CA1910045_015_015-202105121045 | ND |
| 2021-06-09 | CA1910045_023_023-202106090925 | ND |
| 2021-06-09 | CA1910045_024_024-202106091205 | ND |
| 2021-11-10 | CA1910045_001_001-202111100845 | ND |
| 2021-11-10 | CA1910045_004_004-202111101107 | ND |
| 2023-02-08 | CA1910045_021_021-202302080742 | ND |
| 2023-02-08 | CA1910045_017_017-202302080920 | ND |
| 2023-02-08 | CA1910045_018_018-202302081038 | ND |
| 2023-02-08 | CA1910045_022_022-202302080842 | ND |
| 2023-03-08 | CA1910045_020_020-202303080900 | ND |
| 2023-11-08 | CA1910045_004_004-202311081055 | ND |
| 2023-11-08 | CA1910045_005_005-202311081130 | ND |
| 2023-11-08 | CA1910045_002_002-202311081130 | ND |
| 2023-11-08 | CA1910045_006_006-202311080723 | ND |
| 2023-11-08 | CA1910045_001_001-202311081140 | ND |
| 2023-11-08 | CA1910045_003_003-202311081130 | ND |