king fire nwha charts
TRANSCRIPT
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Powering forward. Together.
King Fire Impacts on SMUD Hydro OperationsGrant Nelson, Sacramento Municipal Utility District
17 February, 2015
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• UARP description• King Fire statistics• King Fire impacts on
SMUD hydro operations
• Mitigation of fire impacts
• Costs• Lessons learned
Agenda
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King Fire Statistics• Started by arsonist on
September 13, 2014– 100% containment on
October 9• Over 97,700 acres burned• Records set:
– Fifteen mile spread in 6 hours– 23% of burn area suffered
high soil burn severity– 210,000 gallons of retardant
dropped in one day– >8,000 personnel at peak
• From as far as Florida and Minnesota
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King Fire Statistics, continued• 21,000 homes threatened• Twelve homes destroyed• 2,830 people evacuated• Twelve firefighters injured• Over 640,000 total
gallons of retardant used• 329-miles of fire line cut• Five SMUD employees
evacuated from their homes
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Daily Fire Progression Fire Grew
50,000 Acres on Sept.17
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Soil Burn Severity
23% of Burn Area Suffered High Soil Burn Severity.Was 7% for the Rim Fire
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VegetationBasalMortality
47% of Fire Area Suffered >90% Mortality
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Pyrocumulus Cloud from Sacramento, 60+ Miles Away
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Camino Penstock Vicinity
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Fire Impacts to UARP• Wood poles burned on 4 kV
feeder line to Brush Creek• Loss of station service power
due to transmission shutdown
• Debris flows and erosion• Fiber optic and conductors
on penstock damaged
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Fire Impacts to UARP, continued• Communication link to
remote gauging stations lost– Daily manual compliance
reads required• Mandatory evacuation of
hydro O&M facility– Critical equipment relocated
prior to evacuation • Increased post-fire traffic on
narrow, winding area roads– SMUD– Contractors– USFS Temporary antenna for gauging telemetry
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Fire Impacts to UARPJaybird Powerhouse
Access Road After First Rain
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Fire Impacts to UARP
Fiber Optic/Power Cables on Penstock
Fallen Tree Takes Out Gauging Station Communication System
(Propane Tanks Survive!)
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Replacing Burned Out Power and Fiber
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Slab Creek Reservoir Drainage
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Camino Adit Road
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Erosion Rills Forming
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Transmission Right of Way40 acres of trans-mission RoW was used as afire break
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Hazard Tree Removal on RoW~One million board feet of timber being removed
Fire caused no damage to transmission system
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Natural Recovery In Process
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Mitigation Efforts
• SMUD has entered into a Collection Agreement with Forest Service for Helimulching– Chopped weed-free straw applied by helicopter– Slopes from 15% to 60% with high burn intensity
to be treated – Treatment of approximately 250 acres in Brush
Creek Drainage– Projected reduction in sediment yield is 6000 tons
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Mitigation Efforts, continued• Hazard tree removal
– Along transmission RoW– Adjacent to SMUD facilities– Behind SMUD gates
• Transmission RoW fire line reseeded– Seed mixture approved by the Forest Service
• Roadside ditches and culverts cleaned after each storm
• Forest Service Burned Area Emergency Response (BAER) Team performed drainage improvements along selected roads
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SMUD’s Recovery Costs
Scope Cost ($)Hazard Tree Removal $1,565,000Fiber and 4 kV Line Replacement $1,002,000Penstock fiber and cable replacement $380,000Road Clearing $86,000Transmission Related Costs $535,000Helimulching $360,000Other $350,000Total $4,478,000
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• Expand upon FERC-required EAP requirements to include disasters beyond dam failure
• Be prepared to operate from remote location(s)• Prepare contingency plans for
– Trapped personnel– Non-functioning generation and/or
transmission– O&M facility evacuation
• Have alternate staging area for key personnel and equipment
Lessons Learned
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• Ensure all personnel contact info is current• Train ICP/EOC liaisons
– Incident Command System familiarity– Company protocols and procedures– Facility familiarity including transmission and
feeder lines – Familiarity with local OES personnel
Lessons Learned, continued
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• The King Fire was devastating and record-setting
• Fortunately, no loss of human life
• All things considered, impact to SMUD not too severe
Conclusions