Wildfire
Mitigation Plan
Update
City Council
June 7, 2022
Calvin Clark
Senior Electrical Engineer
WATER AND
POWER
PRESENTATION OVERVIEW
2 Background
Summary of plan changes
Mitigation activity
accomplishments
Upcoming activities
Next Steps
3 Annually prepare a Wildfire
Mitigation Plan (WMP)
Plan elements to consider
for inclusion in WMP
Present the WMP in a
public meeting, accept
comments & verify
compliance
Qualified independent
evaluator
California Wildfire Safety
Advisory Board (WSAB)
PUBLIC UTILITIES CODE (PUC) 8387
Comprehensive update
every 3 years
Tier 2 HFTD
High
fire-threat
district
4 Priority 2.1
Priority 2.2
Priority 2.3
Electrical facilities
within Tier 2 HFTD
5 SUMMARY OF PLAN CHANGES
General
updates
Added new
mitigation
activity
6 ANNUAL PERFORMANCE METRICS
2021 Summary:
• One ignition caused by BWP’s electrical
facilities
• No pole failures in the Tier 2 zone
• All inspection, maintenance, and
operation activities completed
• 11 days with Red Flag Warning alerts
• 10 risk driver events in the Tier 2 HFTD
7 Future Wildfire Mitigation Plans
Inspection
Data
Outage
Data
Risk Driver
Events
Ignition event
3/21/2021
8 Ignition location
(priority 2.2 zone)
Ignition event
3/21/2021
9 Ignition location
Conventional fuse
operation
41%
Conductor failure
22%
Wire contact with
vegetation
16%
Wire contact -
mylar balloons
9%
Other
8%
Transformer Failure
5%
RISK DRIVER EVENTS
Tier 2 HFTD (2005 – 2021)
Total = 64 events
10 Conventional fuse
operation
41%
Conductor failure
22%
Wire contact with
vegetation
16%
Wire contact -
mylar balloons
9%
Other
8%
Transformer failure
5%
RISK DRIVER EVENTS
Tier 2 HFTD (2005 – 2021)
11 # of risk driver
events in 2021
#
2 3
3 1
1 Completed all
annual asset
and
vegetation
inspections
12 Replaced 5
deteriorated
poles
13 Replaced 3
overloaded
transformers
14 Trimmed 213
trees and
removed 1
“problem” tree
15 Completed
composite
pole pilot
project
16 Enhanced
system
monitoring
17 Conventional
fuse
replacements
Conventional fuse operation
18 Conventional
fuse
replacements
Non-expulsive fuse operation
19 Completion of
engineering
studies by
June 2022
Covered
conductor20
Completion of
engineering
studies by
June 2022
Infrared inspections21
NEXT STEPS
Next WMP
update
June 2023
CA Wildfire Safety
Advisory Board
By July 1, 2022
City Council presentation
& public comments
June 2022
BWP Board
presentation
May 2022
22 QUESTIONS?
Calvin Clark
Senior Electrical Engineer
[email protected]
(818) 238-3583
WATER AND
POWER