Working to Reconnect the Deschutes River Watershed to its Ancestral Salish Sea Home
28 April 2011 Deschutes TMDL Advisory Group Presenters: Sue Patnude ,  DERT John Konovsky ,  SIT Doug Myers ,  PFPS
 
<ul><li>DERT Principles </li></ul><ul><ul><li>Reconnect the river to its estuary </li></ul></ul><ul><ul><li>Improve habita...
The Capitol reflecting in Deschutes River Estuary before Little Hollywood was destroyed  (UW Historical Photo).
<ul><li>Capitol Lake is not a lake…it is a river disconnected from its estuary </li></ul><ul><li>With millions being inves...
Costs of Estuary Restoration <ul><li>Costs short term </li></ul><ul><li>Federal funds available </li></ul><ul><li>Dredge s...
Costs of Lake Management <ul><li>Continual dredging a financial burden </li></ul><ul><li>Dam is aging and needs to be repl...
Some Facts
Salmonids are a SIT Priority   <ul><li>Estuary benefits salmonids from Deschutes </li></ul><ul><li>Also “tourists” like en...
Watershed Approach Essential <ul><li>Best available science  </li></ul><ul><ul><li>= TMDL, CLAMP, PSNERP, DFW, SIT </li></...
Temperature  <ul><li>Cooling upstream won’t sufficiently cool lake </li></ul><ul><li>Too shallow and stagnant </li></ul><u...
Fine Sediment   <ul><li>Young geologic system </li></ul><ul><li>~75% of fine sediment load is natural </li></ul><ul><ul><l...
<ul><li>Lake cannot assimilate natural load </li></ul><ul><ul><li>Dredged or not, excessive algae blooms will cause low DO...
DO <ul><li>Lake alternative </li></ul><ul><ul><li>DO violations persist around Port Peninsula </li></ul></ul><ul><ul><li>M...
DO Standard   <ul><li>Numeric standards do not apply </li></ul><ul><li>Same narrative standard for estuary or lake </li></...
The Science
PSNERP is… Deschutes Estuary is one of 22 projects soundwide being considered for further design & development
 
Nitrogen Removal - lakes <ul><li>The ability of an impounded lake to remove nitrogen is a factor of water residence time <...
Phosphorus Overloading Manifests in a Lake, but not an Estuary
Estuaries Remove Nitrogen through  Nitrification and De-nitrification Nitrification and sequestration into plant tissues a...
Nutrient Removal - estuaries <ul><li>Both vegetated salt marshes and mudflats remove nitrogen through nitrification and de...
Variable Responses to Restoration <ul><li>Similar latitude macro-tidal estuaries to Puget Sound have documented high nitro...
Invasive Species Respond Favorably to Estuary Restoration
<ul><li>Dam Removal and Estuary Restoration </li></ul><ul><li>Contribute significantly to a healthier Puget Sound </li></u...
<ul><li>SIT Lower Budd Inlet Restoration Strategy </li></ul><ul><li>The condition of the surrounding landscape matters whe...
Deschutes Estuary Restoration Team (DERT) You can find us at:  http://www.deschutesestuary.org Friend DERT on Facebook at ...
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Deschutes Estuary Restoration Team presentation 4-28-11

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Sue Patnude (DERT), John Konovsky (Squaxin Island Tribe) and Doug Myers (People for Puget Sound) give a presentation about the benefits of restoring the Deschutes River estuary in Olympia, WA.

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  • Slide 1: Salmonids are a Squaxin Priority A Deschutes Estuary will benefit more than salmonids naturally spawning and rearing in the Deschutes River A restored estuary will benefit ESA-listed, Puget Sound salmonids like White River spring chinook who “tour” Budd Inlet before outmigrating to the ocean From Scott: Some outmigrating Deschutes fish such as coho rapidly move through the estuary while others like Chinook remain longer. For these fish, estuaries provide a gradual transition from the fresh water environment to salt water. The estuary provides productive feeding areas and predator refuge. Studies have shown that Chinook smolts that spend time in estuaries rather then heading straight to the salt water have higher survival rates. This early period is especially critical in the current era of lower marine survival in the ocean. The more healthy smolts we can put out to the ocean the more adults we’ll get back.
  • Slide 2: Watershed Approach Essential, but Not Sufficient Based on best available science: TMDL/CLAMP/PSNERP/SHIRAZ etc. Upstream improvement insufficient to achieve WQS in lake/inlet Direct intervention necessary
  • Slide 3: Temperature Cooling upstream flow won’t cool all of Capitol Lake Middle and north basins are shallow and stagnant, and will still exceed standard Creation of estuary will improve circulation and further cool temperature
  • Slide 4: Fine Sediment Young geologic system 75% of fine sediment “natural background condition” Therefore, high phosphorus load
  • Slide 5: Phosphorus Lake geometry cannot assimilate even natural load Dredged or not, lake will always have excessive algae blooms causing low DO Creation of estuary will improve nutrient dynamics
  • Slide 6: DO (@ current nutrient loading) Lake alternative: DO violations persist around Port Peninsula Max DO depletion &gt; 1 mg/L Estuary alternative: DO standard violated in fewer areas of Budd Inlet Max DO depletion &lt; 1 mg/L DO standard met in West Bay (where salmonids predominate) DO violations expand into East Bay Creation of estuary will diminish water quality violations and benefit salmonids
  • Slide 7: DO Standard Numeric standards do not apply Same narrative standard for estuary or lake Only 0.2 mg/L reduction allowable from natural background condition
  • Deschutes Estuary Restoration Team presentation 4-28-11

    1. 1. Working to Reconnect the Deschutes River Watershed to its Ancestral Salish Sea Home
    2. 2. 28 April 2011 Deschutes TMDL Advisory Group Presenters: Sue Patnude , DERT John Konovsky , SIT Doug Myers , PFPS
    3. 4. <ul><li>DERT Principles </li></ul><ul><ul><li>Reconnect the river to its estuary </li></ul></ul><ul><ul><li>Improve habitat for fish & wildlife </li></ul></ul><ul><ul><li>Enable human recreation </li></ul></ul><ul><li>An estuary is environmentally & economically sustainable </li></ul><ul><li>Building a dam at the mouth of the Deschutes River to form Capitol Lake seemed like a good idea at the time. </li></ul><ul><li>But over the last 60 years, the dam has diminished the health of the watershed. </li></ul><ul><li>Now is the time to remove the dam. </li></ul>
    4. 5. The Capitol reflecting in Deschutes River Estuary before Little Hollywood was destroyed (UW Historical Photo).
    5. 6. <ul><li>Capitol Lake is not a lake…it is a river disconnected from its estuary </li></ul><ul><li>With millions being invested in Puget Sound – why do we have a dam on the Capitol Campus? </li></ul><ul><li>Costs (CLAMP 2009) : </li></ul><ul><li>Estuary Restoration </li></ul><ul><li>$50 to $212 million </li></ul><ul><li>Lake Management </li></ul><ul><li>$152 to $362 million </li></ul>
    6. 7. Costs of Estuary Restoration <ul><li>Costs short term </li></ul><ul><li>Federal funds available </li></ul><ul><li>Dredge spoils contained in estuary </li></ul>Excerpted from CLAMP 2009 <ul><li>Fewer invasive species issues </li></ul><ul><li>Return of recreational use </li></ul><ul><li>A huge tourist attraction </li></ul>Most economically sustainable option
    7. 8. Costs of Lake Management <ul><li>Continual dredging a financial burden </li></ul><ul><li>Dam is aging and needs to be replaced </li></ul><ul><li>Permitting for new dam will be difficult & cost not included </li></ul><ul><li>Dredge disposal always an issue & expense </li></ul><ul><li>A lake will maintain closure to recreation </li></ul>
    8. 9. Some Facts
    9. 10. Salmonids are a SIT Priority <ul><li>Estuary benefits salmonids from Deschutes </li></ul><ul><li>Also “tourists” like endangered White River spring chinook </li></ul>White River spring chinook fry (courtesy of Muckleshoot Indian Tribe)
    10. 11. Watershed Approach Essential <ul><li>Best available science </li></ul><ul><ul><li>= TMDL, CLAMP, PSNERP, DFW, SIT </li></ul></ul><ul><li>Insufficient to clean up lake </li></ul>
    11. 12. Temperature <ul><li>Cooling upstream won’t sufficiently cool lake </li></ul><ul><li>Too shallow and stagnant </li></ul><ul><li>Estuary improves circulation & temp </li></ul>
    12. 13. Fine Sediment <ul><li>Young geologic system </li></ul><ul><li>~75% of fine sediment load is natural </li></ul><ul><ul><li>Lower in upper watershed </li></ul></ul><ul><li>Anthropogenic sources </li></ul><ul><ul><li>Landslides </li></ul></ul><ul><ul><li>Unpaved roads </li></ul></ul><ul><ul><li>Constrictions/bank armoring </li></ul></ul><ul><li>#1 Salmonid limiting factor </li></ul><ul><ul><li>Other than ocean survival & timing of peak annual flows </li></ul></ul><ul><li> Sediment =  phosphorus load </li></ul>Huckleberry Creek after January 1990 flood
    13. 14. <ul><li>Lake cannot assimilate natural load </li></ul><ul><ul><li>Dredged or not, excessive algae blooms will cause low DO </li></ul></ul><ul><li>Estuary changes nutrient dynamics </li></ul>Phosphorus (courtesy of Berd Whitlock)
    14. 15. DO <ul><li>Lake alternative </li></ul><ul><ul><li>DO violations persist around Port Peninsula </li></ul></ul><ul><ul><li>Max DO depletion > 1 mg/L </li></ul></ul><ul><li>Estuary alternative </li></ul><ul><ul><li>DO standard violated in fewer areas of Budd Inlet </li></ul></ul><ul><ul><li>Max DO depletion < 1 mg/L </li></ul></ul><ul><ul><li>DO standard met in West Bay </li></ul></ul><ul><ul><li>( where salmonids predominate ) </li></ul></ul><ul><ul><li>DO violations expand into East Bay </li></ul></ul><ul><li>Creation of estuary will diminish water quality violations and benefit salmonids </li></ul>
    15. 16. DO Standard <ul><li>Numeric standards do not apply </li></ul><ul><li>Same narrative standard for estuary or lake </li></ul><ul><li>Only 0.2 mg/L reduction allowable </li></ul>
    16. 17. The Science
    17. 18. PSNERP is… Deschutes Estuary is one of 22 projects soundwide being considered for further design & development
    18. 20. Nitrogen Removal - lakes <ul><li>The ability of an impounded lake to remove nitrogen is a factor of water residence time </li></ul><ul><li>Capitol Lake has little capacity for nitrogen removal </li></ul>
    19. 21. Phosphorus Overloading Manifests in a Lake, but not an Estuary
    20. 22. Estuaries Remove Nitrogen through Nitrification and De-nitrification Nitrification and sequestration into plant tissues and sediments Microphytobenthos (benthic diatoms), salt marsh emergent vegetation Sediment surface bacteria on mudflats De-nitrification
    21. 23. Nutrient Removal - estuaries <ul><li>Both vegetated salt marshes and mudflats remove nitrogen through nitrification and de-nitrification </li></ul><ul><li>Phosphorus not considered “limiting” in marine environments </li></ul>
    22. 24. Variable Responses to Restoration <ul><li>Similar latitude macro-tidal estuaries to Puget Sound have documented high nitrogen removal in salt marshes & mudflats </li></ul><ul><li>A recently restored polder in France removed 474g N/ha/tide </li></ul><ul><li>Marshes recently constructed from dredged material in North Carolina were much poorer at nitrogen removal in their first year than mature marshes </li></ul>
    23. 25. Invasive Species Respond Favorably to Estuary Restoration
    24. 26. <ul><li>Dam Removal and Estuary Restoration </li></ul><ul><li>Contribute significantly to a healthier Puget Sound </li></ul><ul><li>Save the state taxpayers millions of dollars </li></ul><ul><li>Solve or greatly improve upon current watershed management issues </li></ul><ul><li>Minimize invasive species issues </li></ul><ul><li>Return recreational opportunities to the lower watershed </li></ul><ul><li>Result in improved water quality </li></ul><ul><li>Improve habitat for fish & wildlife </li></ul><ul><li>End the current public policy contradiction of a dammed estuary on the Capitol Campus </li></ul>
    25. 27. <ul><li>SIT Lower Budd Inlet Restoration Strategy </li></ul><ul><li>The condition of the surrounding landscape matters when considering the scale or size of restoration projects </li></ul><ul><li>Where landscape is essentially intact, such as in Gull Harbor, small scale projects are possible and the probability of success is high </li></ul><ul><li>In areas like lower Budd Inlet that are highly disturbed small scale projects have a low probability of success </li></ul><ul><li>Meaningful restoration is achievable only through a truly watershed-wide approach including returning the lake to an estuary </li></ul>
    26. 28. Deschutes Estuary Restoration Team (DERT) You can find us at: http://www.deschutesestuary.org Friend DERT on Facebook at “Deschutes Estuary”

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