City of Corona Utilities Department • 755 Public Safety Way, Corona, CA 92878 • (951) 736-2234
May 21, 2025
Re: Notice of Public Meeting on City of Corona Wildfire Mitigation Plan Dear Wildfire Safety Advisory Board,
This letter notifies the Wildfire Safety Advisory Board (“WSAB”) that on May 21, 2025, the City of Corona (CUD) presented its existing Wildfire Mitigation Plan (“WMP”) to its City Council at a publicly noticed meeting, in accordance with Public Utilities Code section 8387(b). CUD’s WMP was most recently adopted on May 15, 2024. At the May 21, 2025 meeting, CUD provided an opportunity for public comment on its existing WMP and CUD’s City Council verified that CUD’s existing WMP complies with all applicable rules, regulations, and standards, as appropriate.
CUD does not have any overhead electric supply facilities located in or near an area of the state that is designed as “extreme” or “elevated” in the California Public Utilities Commission’s High Fire Threat District Map. In consideration of this historical wildfire risk, CUD has determined that its existing WMP adequately addresses the risk of a utility-caused, catastrophic wildfire occurring in CUD’s service territory and that no substantive changes are merited for this reporting year. CUD will continue to evaluate its existing WMP in relation to the wildfire risk posed by CUD’s system on an annual basis.
In order to provide the WSAB with information on CUD’s system and WMP performance, please find as Attachment A, an updated Informational Table, and Attachment B, an updated Metrics Table.
CUD thanks the WSAB for their review and support in helping to mitigate wildfire risks in California.
Sincerely,
Erin Kunkle
Electric Utility Manager
P: (951) 817-5795 | M: (951) 741-9643
[email protected]
City of Corona Utilities Department • 755 Public Safety Way, Corona, CA 92878 • (951) 736-2234 Attachment A
CUD 2025 Informational Table
Context-Setting Information Utility
Name
[POU]
Service Territory Size 1.405 square miles
Owned Assets ☐ Transmission ⮽Distribution ☐ Generation
Number of Customers Served 1,850 customer accounts
Population Within Service Territory 6,068* people
*Estimated based on US Census Bureau data
Customer Class Makeup – Number of Accounts) 69.73% Residential;
29.78% Commercial/Government;
0.49% Industrial
Customer Class Makeup – Share of Total Load
(MWH)
10.75% Residential;
58.08% Commercial/Government;
31.17% Industrial
Service Territory
Location/Topography13
1.39% Agriculture
0% Barren/Other
0% Conifer Forest
0% Conifer Woodland
0% Desert
0% Hardwood Forest
10.42% Hardwood Woodland
16.25% Herbaceous
7.76% Shrub
63.29% Urban
0.89% Water
Service Territory
Wildland Urban Interface14
(based on total area)
20.44% Wildland Urban Interface;
0% Wildland Urban Intermix;
Percent of Service Territory in CPUC High Fire
Threat Districts (based on total area)
⮽Includes maps
Tier 2: 39.45%
Tier 3: 7.77%
Prevailing Wind Directions & Speeds by Season ⮽Includes maps Miles of Owned Lines Underground and/or
Overhead
Overhead Dist: 0.03 miles
Overhead Trans: 0 miles
Underground Dist: 31.097 miles
Underground Trans: 0 miles
City of Corona Utilities Department • 755 Public Safety Way, Corona, CA 92878 • (951) 736-2234 Percent of Owned Lines in CPUC High Fire
Threat Districts
Overhead Distribution Lines as % of Total
Distribution System
(Inside and Outside Service Territory)
Tier 2: [0]%
Tier 3: [0]%
Overhead Transmission Lines as % of Total
Transmission System
(Inside and Outside Service Territory)
Tier 2: 0%
Tier 3: 0%
Customers have ever lost service due to an IOU
PSPS event?
☐Yes ⮽No
Customers have ever been notified of a
potential loss of service to due to a forecasted
IOU PSPS event?
⮽Yes ☐No
Has developed protocols to pre-emptively shut
off electricity in response to elevated wildfire
risks?
☐ Yes ⮽ No
Has previously pre-emptively shut off electricity
in response to elevated wildfire risk?
☐ Yes ⮽No
City of Corona Utilities Department • 755 Public Safety Way, Corona, CA 92878 • (951) 736-2234 Attachment B
CUD 2025 Metrics Table
Performance Metrics
Metric type Progress metric
name
(Actual) (Actual) (Forecast)
2023 2024 2025 Unit(s)
1. Above-Ground, UtilityOwned Distribution
System Components
Routine
Inspections
217 279 279 #inspections
2. Distribution Inspections
Inspections 0.03
miles
0.03 miles
0.03 miles
# circuit
miles
Routine
Vegetation
Management
0.03 miles
0.03 miles
0.03 miles
# circuit
miles
Outcome Metrics
(Actual) (Actual) (To Date)
Event Category Cause category 2023 2024 2025 Unit(s)
Outage Event Distribution 8 11 2 # outages
Ignitions Distribution 0 0 0 # ignitions