4-Chloro-2-methylphenoxyacetic Acid (MCPA) in Drinking Water: Guideline Technical Document for Public Consultation

A maximum acceptable concentration (MAC) of 0.4 mg/L (400 µg/L) is proposed for 4-chloro-2-methylphenoxyacetic acid (MCPA) in drinking water. 4-Chloro-2-methylphenoxyacetic acid (MCPA) is a phenoxyacetic acid herbicide, registered in Canada for use on agricultural sites, fine turf and lawns, in forestry and at industrial sites.