11.   Sewage plants sometimes discharge dirty water.

12.   The oil is stored on board while the cleansed water is discharged into the ocean.

13.   The separator filters out oil so the water can be discharged and the oil stored for disposal in port.

14.   This water is then discharged through a pipe that carries it outside to a safe disposal area.

15.   Though the lines say their ships do not discharge gray water while sitting in port and never discharge raw sewage in the Inside Passage, some regulators are skeptical.

16.   Under current federal and international laws, ships can discharge gray water anywhere.

17.   Under federal and international regulations, ships can discharge gray water from sinks, showers, kitchens, laundries and other facilities anywhere, including in ports.

18.   A new type of tap should be manufactured to discharge water at low or high volume.

19.   Another is to require ships to discharge ballast water before they enter American harbors.

20.   Authorities also discharged excess water from two reservoirs in the region, increasing flood levels, United News of India said.