Answer:

SEWAGE

Answer	Crossword Clue
SEWAGE	Waste
SEWAGE	Treatment-plant matter
SEWAGE	Disposal problem

SEWAGE	Treatment plant fodder
SEWAGE	Treatment plant input
SEWAGE	Underground waste
SEWAGE	Septic tank contents
SEWAGE	When treated, it becomes sludge
SEWAGE	Raw material for Ed Norton?
SEWAGE	Septic stuff
SEWAGE	... treatment plant

SEWAGE	EPA concern
SEWAGE	Bad-smelling flower?
SEWAGE	E.P.A. concern
SEWAGE	Waste at a treatment plant
SEWAGE	Pollution concern
SEWAGE	Waste liquid
SEWAGE	It's treated in a plant
SEWAGE	Ed Norton may have been up to his ankles in it

SEWAGE	It flows underground
SEWAGE	Liquid waste
SEWAGE	Flow underground
SEWAGE	It's a waste