| Answer | Crossword Clue |
|---|---|
| effluents | Liquid waste or sewage discharged into a river or the sea |
| effluent | Liquid waste or sewage discharged into a river or the sea |
| outfalls | The place where a river, drain, or sewer empties into the sea, a river, or a lake |
| jetty | a structure extended into a sea, lake, or river to influence the current or tide or to protect a harbor |
