Aluminum

California Water Service Company - Dominguez

Aluminum is a metal released from metal refineries and mining operations. Too much aluminum exposure can impair children's brain development.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.310 ppb	3	1	ND - 0.931 ppb
2015	ND	1	0	ND
2016	ND	6	0	ND
2017	21.7 ppb	6	1	ND - 130.0 ppb
2018	ND	4	0	ND
2019	ND	6	0	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 600 ppb

The EWG Health Guideline of 600 ppb for aluminum 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 harm to the brain and nervous system.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-07-09	5701-050-1340	0.931 ppb
2014-08-27	5810-016-1310	ND
2014-10-08	5810-019-1022	ND
2015-03-25	9590-018-1355	ND
2016-01-13	5810-023-1320	ND
2016-03-23	9590-018-1340	ND
2016-05-11	5810-036-1140	ND
2016-07-13	5810-050-1335	ND
2016-09-07	5810-004-1300	ND
2016-12-28	9590-019-0930	ND
2017-03-08	9590-019-1430	130.0 ppb
2017-08-23	5810-016-1212	ND
2017-08-23	5810-019-1100	ND
2017-10-11	9590-036-1335	ND
2017-10-16	9590-805-1030	ND
2017-12-26	5810-024-1315	ND
2018-06-01	9590-050-0915	ND
2018-08-08	5810-018-1130	ND
2018-12-04	5810-022-1120	ND
2018-12-04	5810-016-1205	ND
2019-01-09	5810-023-1100	ND
2019-02-21	9590-065-1345	ND
2019-03-20	5810-024-1210	ND
2019-05-22	5810-036-1415	ND
2019-07-17	5810-050-1243	ND
2019-09-23	5810-004-1340	ND