Know Your Environment. Protect Your Health.

Perchlorate

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 perchlorate. Sample information shown below was taken by Antelope Valley - East Kern Water Agency.

Perchlorate, a component of rocket fuel, occurs both naturally and as a synthetic chemical. Ingested perchlorate interferes with thyroid function. Exposure to perchlorate during pregnancy and childhood can impair cognitive development. Read More.

According to the EPA, perchlorate likely contaminates the water of more than 16 million Americans. Perchlorate interferes with iodine uptake in the thyroid, which can result in reduced thyroid hormones and an impact on metabolism, physical development and cognitive development. Children and developing fetuses are the most at risk from perchlorate contamination.

Perchlorate is the only unregulated contaminant for which the EPA has attempted to set a federal drinking water standard since 1996. However, the agency has yet to propose a draft limit for this contaminant. Perchlorate in drinking water is regulated in Arizona, California, Massachusetts, New Jersey, New York and Texas. California set a public health goal of 1 part per billion for perchlorate in 2015.

Click here to read more about perchlorate.

 

126

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND180ND
2019ND10ND
2020ND10ND
2021ND200ND
2022ND10ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppb

The EWG Health Guideline of 1 ppb for perchlorate 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 hormone disruption.

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 perchlorate. Sample information shown below was taken by Antelope Valley - East Kern Water Agency.

Date Lab ID Result
2018-02-28CA1910045_019_019-201802280928ND
2018-03-14CA1910045_020_020-201803140640ND
2018-05-09CA1910045_011_011-201805090617ND
2018-07-11CA1910045_007_007-201807110720ND
2018-07-11CA1910045_009_009-201807110755ND
2018-07-11CA1910045_008_008-201807110900ND
2018-07-11CA1910045_010_010-201807110840ND
2018-08-08CA1910045_015_015-201808080638ND
2018-08-08CA1910045_019_019-201808081055ND
2018-08-08CA1910045_012_012-201808080625ND
2018-09-12CA1910045_013_013-201809121045ND
2018-09-12CA1910045_014_014-201809121028ND
2018-11-06CA1910045_002_002-201811061110ND
2018-11-06CA1910045_006_006-201811060730ND
2018-11-06CA1910045_003_003-201811061110ND
2018-11-06CA1910045_001_001-201811061110ND
2018-11-06CA1910045_004_004-201811061105ND
2018-11-06CA1910045_005_005-201811061110ND
2019-03-13CA1910045_020_020-201903130903ND
2019-05-08CA1910045_011_011-201905080737ND
2019-07-10CA1910045_008_008-201907100750ND
2019-07-10CA1910045_009_009-201907100740ND
2019-07-10CA1910045_007_007-201907100800ND
2019-07-10CA1910045_010_010-201907100830ND
2019-08-14CA1910045_012_012-201908140740ND
2019-08-14CA1910045_015_015-201908140730ND
2019-08-14CA1910045_019_019-201908141045ND
2019-09-11CA1910045_023_023-201909110730ND
2019-09-11CA1910045_024_024-201909111000ND
2019-09-11CA1910045_014_014-201909111025ND
2019-09-11CA1910045_013_013-201909110745ND
2019-11-13CA1910045_001_001-201911130853ND
2019-11-13CA1910045_005_005-201911130900ND
2019-11-13CA1910045_018_018-201911131235ND
2019-11-13CA1910045_004_004-201911131202ND
2019-11-13CA1910045_002_002-201911130900ND
2019-11-13CA1910045_003_003-201911130900ND
2019-11-13CA1910045_006_006-201911130833ND
2019-11-13CA1910045_017_017-201911130940ND
2020-02-12CA1910045_021_021-202002121035ND
2020-02-12CA1910045_022_022-202002120805ND
2020-03-11CA1910045_020_020-202003110930ND
2020-05-13CA1910045_011_011-202005131030ND
2020-07-08CA1910045_010_010-202007080810ND
2020-07-08CA1910045_009_009-202007080805ND
2020-07-08CA1910045_007_007-202007080857ND
2020-07-08CA1910045_008_008-202007080845ND
2020-09-09CA1910045_013_013-202009090858ND
2020-09-09CA1910045_014_014-202009090900ND
2020-09-15CA1910045_024_024-202009151310ND
2020-09-15CA1910045_023_023-202009151225ND
2020-11-09CA1910045_018_018-202011091217ND
2020-11-09CA1910045_005_005-202011091220ND
2020-11-09CA1910045_002_002-202011091220ND
2020-11-09CA1910045_001_001-202011091250ND
2020-11-09CA1910045_004_004-202011091240ND
2020-11-09CA1910045_006_006-202011090929ND
2020-11-09CA1910045_017_017-202011091310ND
2020-11-09CA1910045_003_003-202011091220ND
2021-02-10CA1910045_021_021-202102100715ND
2021-02-10CA1910045_022_022-202102100853ND
2021-03-10CA1910045_020_020-202103100930ND
2021-05-12CA1910045_011_011-202105121115ND
2021-07-14CA1910045_007_007-202107140737ND
2021-07-14CA1910045_009_009-202107140940ND
2021-07-14CA1910045_010_010-202107140906ND
2021-07-14CA1910045_008_008-202107140819ND
2021-08-11CA1910045_019_019-202108110655ND
2021-08-11CA1910045_015_015-202108110913ND
2021-08-11CA1910045_012_012-202108110932ND
2021-09-08CA1910045_013_013-202109081014ND
2021-09-08CA1910045_014_014-202109081038ND
2021-09-08CA1910045_023_023-202109080915ND
2021-09-08CA1910045_024_024-202109081040ND
2021-11-10CA1910045_001_001-202111100845ND
2021-11-10CA1910045_006_006-202111100750ND
2021-11-10CA1910045_004_004-202111101107ND
2021-11-10CA1910045_017_017-202111100845ND
2021-11-10CA1910045_018_018-202111100945ND
2022-02-09CA1910045_022_022-202202090911ND
2022-02-09CA1910045_021_021-202202090925ND
2022-03-09CA1910045_020_020-202203090920ND
2022-05-11CA1910045_011_011-202205110930ND
2022-07-13CA1910045_008_008-202207130855ND
2022-08-10CA1910045_008_008-202208100952ND
2022-08-10CA1910045_010_010-202208101008ND
2022-08-10CA1910045_007_007-202208100956ND
2022-08-10CA1910045_009_009-202208101002ND
2022-08-10CA1910045_012_012-202208101026ND
2022-08-10CA1910045_015_015-202208100931ND
2022-09-14CA1910045_024_024-202209141025ND
2022-09-14CA1910045_013_013-202209140850ND
2022-09-14CA1910045_014_014-202209140925ND
2022-10-12CA1910045_019_019-202210121120ND
2022-11-09CA1910045_006_006-202211090810ND
2022-11-09CA1910045_017_017-202211091100ND
2022-11-09CA1910045_023_023-202211091245ND
2022-11-09CA1910045_002_002-202211091205ND
2022-11-09CA1910045_003_003-202211091205ND
2022-11-09CA1910045_001_001-202211091210ND
2022-11-09CA1910045_004_004-202211091118ND
2022-11-09CA1910045_005_005-202211091205ND
2022-11-09CA1910045_018_018-202211090944ND
2023-02-08CA1910045_021_021-202302080742ND
2023-02-08CA1910045_022_022-202302080842ND
2023-03-08CA1910045_020_020-202303080900ND
2023-05-10CA1910045_011_011-202305100838ND
2023-07-12CA1910045_007_007-202307120737ND
2023-07-12CA1910045_010_010-202307120720ND
2023-07-12CA1910045_008_008-202307120730ND
2023-07-12CA1910045_009_009-202307120726ND
2023-08-09CA1910045_012_012-202308090856ND
2023-08-09CA1910045_015_015-202308090755ND
2023-08-09CA1910045_017_017-202308091211ND
2023-08-09CA1910045_019_019-202308091206ND
2023-09-13CA1910045_023_023-202309130845ND
2023-09-13CA1910045_013_013-202309130800ND
2023-09-13CA1910045_024_024-202309130835ND
2023-09-13CA1910045_014_014-202309130742ND
2023-11-08CA1910045_018_018-202311081235ND
2023-12-06CA1910045_006_006-202312060700ND
2023-12-06CA1910045_002_002-202312060920ND
2023-12-06CA1910045_003_003-202312060920ND
2023-12-06CA1910045_004_004-202312061015ND
2023-12-06CA1910045_001_001-202312060915ND
2023-12-06CA1910045_005_005-202312060920ND