Patterns of dissolved oxygen in South Sound:

At depth, oxygen levels follow seasonal patterns, and they are lowest at this time of year.  Shallow inlet oxygen patterns are much more complex.  Water stagnates during neap tides, and dissolved oxygen can be lower then.

Mindy Roberts does water quality modeling for Department of Ecology.  She is sorting out human versus natural drivers on oxygen levels in South Sound, especially nitrogen sources.  Marine sources are more influential than rivers.   Examples of human influences are wastewater treatment, leaky septic systems, runoff developed areas…  Ocean conditions are changing as well.

Our population will increase significantly in the future.  South Puget sound is at the end of along conveyor belt of circulation in South Sound.  It is very sensitive to increases in human pressures.

Every inlet of Puget Sound has a unique pattern of circulation and oxygen pattern, a unique response to changing conditions.

This is a long term modeling effort.  Mindy and her colleagues are looking right now at how to reduce nutrient inputs that affect dissolved oxygen.

North Sound influences South Sound.

Heather Trim;

WDFW and EPA joined together to conduct a study collecting shoreline armouring data, parcel data, and owner surveys Sound wide.

The teams goal was to create social marketing behavior change strategy that will lead to residential landowners changing their shoreline armoring-related behaviors.

Social marketing is intended to increase motivators and decrease barriers. Some barriers with leaving shoreline unarmored include land owners property not protected from erosion or property not being protected after removal or existing armoring. Some motivators include providing healthy habitat for fish and wild life as well as getting a tax break and reducing fees to land owners.

Their findings include 57% of sound wide parcels are residential parcels, most residential parcels have shoreline armouring Thurston and Mason is the largest forage fish spawning areas that are armoured. 46% of these residential areas are unoccupied parcels. In other words the parcels that are effecting the forage fish spawning areas are mostly uninhabited by home owners.

They also looked at parcel size, land value,  and age or owners. Heather found that if the parcel size is larger it is also less likely to be armoured.

Jeff Dickison, assistant natural resources manager, Squaxin Island Tribe.

Catherine O’Neill, Seattle University Law School

Paraphrasing what Catherine is saying:

We know we live in an mazing place, but the fish that we depend on are degraded and are polluted.

Water quality standards are the mechanism for reducing pollution and reducing pollution impact on humans.

Fish consumption rate is a portion of a larger health based equation that is meant to reduce the risk of ill health.

The current FCR is based on an estimate that was done 40 years ago at the request of the tuna industry. Because of pollution, fish consumption was probably pretty low. This is also a time when tribal fishing was still coming back online, the Boldt decision just having been handed down.

Water will only be clean enough to allow up to one meal a month.

Dickson:

The tribe conducted one of the first fish consumption surveys with their members, working with the Tulalip Tribes and the EPA.

The 6.5 rate was built taking into consideration of what people eat in Nebraska. Even coastal people eat more than that. And, tribal members eat even more. Tribal survey was in 1994, 20 years after the original survey.

When you talk about percentiles of protection in Indian Country (90th, 95th) tribal leaders know who the 10 percent and 5 percent who are being left out. It isn’t just a number. So, even rates like 175 are compromise numbers for the tribe, because they leave so many people out.

Squaxin dietary surveys found that children under six consumed fish over 3 times the rate of their parents.

Tribes started proving their populations were at risk 20 years ago, but we’re still not where we need to be. The FCR has not gone up.

O’Neill:

EPA was moved by the tribal studies, updated guidance in 2000:

• National default moved to 17.5 grams a day.
• Subsistence rate moved to 142.2 grams a day

Default rates are only used as a last resource. Local data is preferred. And, Washington of course has local data.

Also, keep in mind that contemporary numbers are lower than historic rates because of pollution and degradation of natural resources.

So, where is Washington? Fifteen years ago, the state recognized they needed to update the FCR, but a report was never finalized.

State started the process, but in July 2012, the state pivoted in their process: http://www.invw.org/article/how-boeing-allies-torpedo-1353

And, lastly, this past summer, the state announced an increase in the FCR to 175, but increased the risk of cancer rate by 10 fold. The state also announced that for the pollutants that would go up, that they wouldn’t backslide.

We’ll be using this blog tomorrow to cover the South Sound Science Symposium.

Throughout the day, there will be regular updates from the symposium being held at the Squaxin Island Tribe’s Little Creek Events Center. All of the posts will be under this category. You can also follow the social media hashtag (on Facebook or Twitter) #S42014 for even more discussion.

You can find the list of speakers at the symposium here.