If drinking water exceeds the acceptable nitrate-nitrogen standard, the choices are to use an alternate water supply or treat the water.
(drinking water; exceeds; the acceptable nitrate-nitrogen standard) (the choices; are; to use an alternate water supply or treat the water) (the choices; to use; an alternate water supply) (the choices; to treat; the water)
drinking water the choices the choices the choices
exceeds are to use to treat
the acceptable nitrate-nitrogen standard
to use an alternate water supply or treat the water
an alternate water supply
the water