Aluminum

City of Tracy

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	ND	8	0	ND
2015	N/A	0	0	N/A
2016	ND	7	0	ND
2017	ND	7	0	ND
2018	44.0 ppb	10	1	ND - 440.0 ppb
2019	N/A	0	0	N/A

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
2014-06-16	9590-006-0745	ND
2014-06-16	9590-005-0732	ND
2014-06-16	9590-003-0802	ND
2014-06-17	9590-034-0733	ND
2014-06-17	9590-030-0756	ND
2014-06-17	9590-018-0817	ND
2014-09-04	9590-004-0737	ND
2014-10-01	9590-032-0746	ND
2016-06-29	9590-032-0820	ND
2016-06-29	9590-018-0750	ND
2016-08-04	9590-004-0651	ND
2016-08-04	9590-006-0725	ND
2016-08-04	9590-003-0706	ND
2016-09-14	9590-034-0812	ND
2016-09-22	9590-005-0825	ND
2017-03-08	9590-030-1230	ND
2017-06-28	9590-032-0814	ND
2017-06-28	9590-034-0742	ND
2017-09-14	9590-006-0824	ND
2017-09-14	9590-005-0814	ND
2017-09-14	9590-004-0738	ND
2017-09-14	9590-003-0749	ND
2018-06-06	9590-018-0657	ND
2018-06-06	9590-032-0750	ND
2018-06-07	9590-006-0835	ND
2018-06-07	9590-005-0826	ND
2018-06-07	9590-004-0741	440.0 ppb
2018-06-07	9590-003-0753	ND
2018-06-13	9590-034-0856	ND
2018-06-21	9590-034-0747	ND
2018-07-11	9590-004-0738	ND
2018-09-13	9590-003-0850	ND