When an acute maximum residual disinfectant level (MRDL) has been detected, how soon will the water be re-tested?
within one day
within one week
within one month
within two months

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.

synapse nervous system