My opinion is even if it's hard, work on the significant part of the problem first. Seems that vessels are not the main problem. (See first link below.) Most have holding tanks
. Less than 5% of the boats are treat and discharge. I didn't see any research
on how poorly treat and discharge work, the reports just state that they don't think they work well. So the NDZ law appears to focus on 5% of the boats, where boating
is a small part of the problem in the first place.
The worst potential offenders in boating
are those with holding tanks
that either say it is too inconvenient to find a pumpout, or don't believe that it is an environmental issue. The solutions are more pumpouts and more education. NDZ doesn't affect this at all.
Parent link for most links below: https://fortress.wa.gov/ecy/publicat...s/1210031.html
Even the proponent says this is a small source. They seem to say they are focusing on boats discharging in specific areas. Again this is probably mostly a holding tank
issue, unless the 5% with treat and discharge are targeting sensitive areas.
State weighs ban on all sewage discharges from boats | Local & Regional | Seattle News, Weather, Sports, Breaking News | KOMO News
"Although the total volume of vessel discharge is small compared to other sources of wastewater, the ability to discharge near or in shellfish beds with little or no treatment presents a significant public health
risk," Jankowiak said.
My bold below
These problems are highly complex and likely result from a combination of natural and human actions. Sewage discharges from vessels are not suspected to be the root cause of specific impairment listings or beach closures
, but certainly contribute to the problem. This contribution may be reduced through the establishment of a NDZ.
sanitation Device (MSD)
Porta-potty 3.3% 10
Type I 1.3% 4
Type II 3.6% 11
Type III (holding tank) 91.1% 276
None 0.7% 2
12. For what reasons do you think people are most likely to discharge illegally?
Pumpout station is broken 34.7% 104
Don't want to risk getting sprayed 8.7% 26
Don't think discharging harms the environment
Too expensive 7.3% 22
Wait is too long 16.7% 50
Pumpout station not conveniently located 71.0% 213
vessels in Puget Sound
See Table 1 in link.
Most are already compliant with NDZ
Those that reported it would be challenging to comply:
The 138 tugboats with 4-7 people onboard have type 1 or 2 MSDs
vessels. Not even discussed in document outside of the table.