"Contaminant" means any physical, chemical, biological, or radiological substance, or substances, of a concentration which, if contained in water, will cause a significant impairment to a domestic drinking water supply.
Ca. Water Code § 60028
"Contaminant" means any physical, chemical, biological, or radiological substance, or substances, of a concentration which, if contained in water, will cause a significant impairment to a domestic drinking water supply.
Ca. Water Code § 60028