Blackwater

Blackwater may refer to:Blackwater USA, a private military contractor and security consulting firm, a book by Jeremy Scahill about the firmBlackwater (waste), a term used for sewage containing fecal matter, cf. greywaterBlackwater fever, an acute kidney disease characterised by the leakage of blood from the kidneys into the urine, where it has a dark appearance when voidedBlack water (algal bloom), a dark discoloration of sea water, first described in the Bay of Florida in January 2002
See more at Wikipedia.org...

Noun
1. any of several human or animal diseases characterized by dark urine resulting from rapid breakdown of red blood cells
(hypernym) disease

Water that contains animal, human, or food waste.