12 hofstad south_soundsymposium
TRANSCRIPT
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Improvement in Henderson Inlet Water
Quality/Shellfish Harvest Status
South Sound Science Symposium
Oct 27, 2010
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Henderson Watershed …
What makes it work?
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Where is Henderson Inlet?
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... all was good ... until ...
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Closures, downgrades, and more downgrades …
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… and so a program evolved.
2001: Shellfish Protection Dist formed
2002: Committee members appointed Risk-Based O&M program – top priority
2003: Grant dollars available to develop septic O&M program
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The Process was key…
• An Advisory Committee began late 2003
• Proposal by April 2004
• Proposal out for public discussion …
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More than 300 showed up for the first meeting
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… many had serious concerns
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… and asked lots of questions
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Only about 50 came for open house #2 … and 30 attended final hearing
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Program adopted and built …
• November 2005 - Public hearing • December 21, 2005 Board of
Health adopted ‘Area of Special Concern’
• 2006 - Program built• January 1, 2007 - Inspection
notices mailed
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Low risk systems – inspect every 3 years
High risk systems – inspect every 3 yearsAND
Dye test every 6 years
Key: Risk-based approach …
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HWPA Program Statistics
*Focus: inspect, pump as needed
Certificates Issued: Inspection +
maintenance complete and system is
working
Number of Septic Tanks Pumped
5503 3696
78% of total sent
67% *of total issued
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Dye Tests
Number of Dye Tests
Number of Systems
that Passed
Systems needing repair
147 94 (89%) 9 (11%)
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Septic System Repair Activity
Installed % ofTotal Installed
Systems 62 51%Tanks 55 45%SandFilter/Mound Rebuilds
4 3%
121
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There are still steel septic tanks in Thurston County
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Septic Tank Levels
0.0
10.0
20.0
30.0
40.0
50.0
60.0
1 201 401 601 801 1001 1201 1401 1601 1801 2001 2201 2401 2601 2801 3001 3201 3401 3601 3801 4001 4201 4401 4601 4801
Co
mb
ine
d S
cu
m +
Slu
dg
e (
Inc
he
s)
Pump when scum + sludge more than 16"
Working depth of typical septic tank - 48"
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Pumping Septic Tanks – the #1 Neglected Maintenance Issue
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Detail of Minor Repairs
Minor Repair Description Number of ...Replace / repair baffles 215
Pipes, floats, electrical 180Tank holes & cracks 131Pump problems 52Other 29
15-Month Total 547
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Grants
Riser Rebates
Key: Incentives& Assistance
$51,000
$45,892
$74,230 Low Interest
Loans
HomeownerWorkshops
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Riser Rebates $51,000
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3696 tanks have been pumped
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Minimally developed shoreline… 14.2
residencesper mile
2006 data
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But DenseDevelopment
2 hours“travel time”
away
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Stormwater treatment has also been ahigh priority. Infrastructure has beenbuilt to treat stormwater flowing to Woodland Creek.
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… as a result
shellfish growing areas
have beenreopened!
upgrades
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What made it happen?
Who made it happen?
Upgrade:• The will to do it• Hard work• Cooperation
• Watershed residents• Homeowners• Farmers• Cities
• County staff• State agencies
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Let’s celebrate!