If lawn chemicals, pesticides or herbicides are used in larger doses than recommended on the label, runoff can have an adverse effect on drinking water supplies and the environment.
(lawn chemicals, pesticides or herbicides; are used; L:in larger doses) (runoff; can have; an adverse effect on drinking water supplies and the environment)
lawn chemicals, pesticides or herbicides runoff
are used can have
L:in larger doses
an adverse effect on drinking water supplies and the environment