JUNEAU - State water quality regulators this week issued six more notices of violation to cruise ships for exceeding pollutant limits in their wastewaster.
That brings the total number of violations to 15 notices for 11 cruise ships this year, with the potential for more because the state Department of Environmental Conservation hasn't yet evaluated its September samples.
This is the first year cruise ships have been regulated under a wastewater discharge permit that voters, in a 2006 ballot initiative, required the state to write.
The permit allows no dilution of wastewater before it is sampled, making the standards stricter than those for municipalities. Cruise lines predicted they wouldn't be able to comply and have been lobbying to change the standards.
The six ships cited for August violations were all owned by Princess Cruises, a subsidiary of Miami- and London-based Carnival Corp. & PLC.
They exceeded limits on zinc, copper and ammonia.
Ammonia is found in urine. Copper may come from water the ships take on board; copper and zinc may come from the ship's pipes.
For more background, see the Empire's coverage of violations from earlier this summer at www.juneauempire.com/stories/092508/loc_336770378.shtml.