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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Palmdale Water District

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.

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73

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
20152.49 ppb1713ND - 6.90 ppb
20160.164 ppb251ND - 4.10 ppb
2017ND20ND
2018ND20ND
2019ND250ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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

Date Lab ID Result
2014-04-179590-001-0800ND
2014-04-179590-030-0800ND
2015-01-14B5A1424-012.10 ppb
2015-01-14B5A1424-076.80 ppb
2015-01-14B5A1424-041.30 ppb
2015-01-14B5A1424-105.80 ppb
2015-02-04B5B0488-014.00 ppb
2015-02-10B5B1124-010.270 ppb
2015-02-129590-030-1115ND
2015-02-179590-001-0730ND
2015-04-08B5D0758-012.90 ppb
2015-05-13B5E1252-01ND
2015-07-08B5G0948-046.90 ppb
2015-07-08B5G0948-074.40 ppb
2015-07-08B5G0948-012.10 ppb
2015-07-08B5G0959-012.20 ppb
2015-08-12B5H1352-01ND
2015-10-07B5J0820-010.210 ppb
2015-10-07B5J0820-043.30 ppb
2016-01-06B6A0547-014.10 ppb
2016-01-199590-033-1025ND
2016-01-199590-019-0920ND
2016-01-199590-032-1130ND
2016-01-199590-016-1015ND
2016-01-199590-018-0910ND
2016-01-209590-029-0820ND
2016-01-209590-004-0720ND
2016-01-209590-003-0730ND
2016-01-209590-014-0735ND
2016-01-209590-012-0750ND
2016-01-209590-009-0750ND
2016-01-209590-008-0810ND
2016-01-219590-021-0800ND
2016-01-219590-059-0740ND
2016-01-219590-011-0820ND
2016-01-219590-025-0720ND
2016-01-219590-007-0930ND
2016-01-219590-027-1015ND
2016-01-219590-028-0900ND
2016-02-249590-026-1000ND
2016-03-179590-001-0800ND
2016-03-179590-030-0800ND
2016-03-249590-015-1015ND
2016-05-199590-022-0830ND
2017-01-269590-001-0800ND
2017-01-269590-030-0800ND
2018-02-149590-030-0800ND
2018-02-149590-001-0930ND
2019-01-239590-012-0920ND
2019-01-239590-015-0945ND
2019-01-249590-007-0925ND
2019-01-249590-014-0950ND
2019-02-079590-003-1020ND
2019-02-079590-004-1050ND
2019-02-079590-009-0950ND
2019-02-079590-029-0920ND
2019-02-139590-059-0840ND
2019-02-139590-033-0750ND
2019-02-139590-022-0815ND
2019-02-139590-026-0925ND
2019-02-149590-011-0920ND
2019-02-149590-008-0850ND
2019-02-219590-027-1140ND
2019-02-219590-016-1100ND
2019-02-219590-032-1040ND
2019-03-069590-014-0840ND
2019-03-079590-001-1100ND
2019-03-079590-030-1110ND
2019-03-279590-018-0915ND
2019-03-279590-019-0935ND
2019-03-279590-021-0810ND
2019-03-279590-028-0845ND
2019-11-149590-025-1035ND