As a result of the high levels of contamination found in the drinking water, residents were advised to boil all tap water for at least one minute before consuming it.
(the high levels of contamination; found; L:in the drinking water) (residents; to boil; all tap water; T:for at least one minute before consuming it)
the high levels of contamination residents
found to boil
L:in the drinking water
all tap water T:for at least one minute before consuming it