Aluminum

City of Opelousas Water System

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
2013	N/A	0	0	N/A
2014	ND	4	0	ND
2015	2.00 ppb	10	2	ND - 10.00 ppb
2016	N/A	0	0	N/A
2017	20.0 ppb	4	4	20.0 ppb
2018	ND	10	0	ND
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
2014-09-08	AD96563	ND
2014-09-08	AD96563	ND
2014-10-06	AD98296	ND
2014-10-06	AD98296	ND
2015-03-09	35178831003	ND
2015-03-09	35178831001	10.00 ppb
2015-03-09	35178831002	ND
2015-03-09	35178831003	ND
2015-03-09	35178831005	ND
2015-03-09	35178831004	ND
2015-03-09	35178831002	ND
2015-03-09	35178831001	10.00 ppb
2015-03-09	35178831004	ND
2015-03-09	35178831005	ND
2017-09-18	AE18148	20.0 ppb
2017-09-18	AE18132	20.0 ppb
2017-09-18	AE18148	20.0 ppb
2017-09-18	AE18132	20.0 ppb
2018-01-09	AE20404	ND
2018-01-09	AE20420	ND
2018-01-09	AE20416	ND
2018-01-09	AE20412	ND
2018-01-09	AE20408	ND
2018-01-09	AE20404	ND
2018-01-09	AE20420	ND
2018-01-09	AE20416	ND
2018-01-09	AE20412	ND
2018-01-09	AE20408	ND