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## WILDFIRE MITIGATION PLAN
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## TABLE OF CONTENTS
I. Overview 1
A. Policy Statement 1
B. Purpose of the Wildfire Mitigation Plan 1
C. Service Territory 1
D. Organization of the Wildfire Mitigation Plan 1
II. Objectives of the Wildfire Mitigation Plan 2
III. Roles and Responsibilities 3
A. Utility Governance Structure 3
B. Wildfire Prevention 4
C. Wildfire Response and Recovery 4
D. Standardized Emergency Management System 5
IV. Wildfire risks and drivers associated with design, construction, operation, and maintenance 7
A. Particular Risks and Risk Drivers Associated with Topographic & Climatological Risk Factors 7
B. Enterprise-Wide Safety Risks 7
V. Wildfire Preventative Strategies 9
A. Low Fire Threat District 9
B. Design and Construction Standards 9
C. Vegetation Management 9
D. Inspections 10
E. Reclosing Policy 10
F. De-Energization 10
VI. Restoration of Service 10
VII. Plan Evaluation 11
A. Metrics and Assumptions for Measuring Plan Performance 11
B. Impact of Metrics on Plan 12
C. Monitoring and Auditing the Plan 12
D. Identifying and Correcting Deficiencies in the Plan 12
E. Monitoring the Effects of Inspections 12
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### A. POLICY STATEMENT
Victorville Municipal Utility Services' (VMUS) overarching goal is to provide safe, reliable, and economic electric service to its service territories. In order to meet this goal, Victorville Municipal Utility Services constructs, maintains, and operates its electrical lines and equipment in a manner that minimizes the risk of catastrophic wildfire posed by its electrical lines and equipment.
### B. PURPOSE OF THE WILDFIRE MITIGATION PLAN
Victorville Municipal Utility Services entire electric supply system is located underground in conduit and vaults. Historically, underground electric lines have not been associated with catastrophic wildfires. The undergrounding of electric lines serves as an effective mitigation measure to reduce the potential of power-line ignited wildfires. Based on a review of local conditions and historical fires, VMUS has determined that its electrical lines and equipment do not pose a significant risk of catastrophic wildfire.
Despite this low risk, VMUS takes appropriate actions to help its region prevent and respond to the increasing risk of devastating wildfires. In its role as a public agency, VMUS closely coordinates with other local safety and emergency officials to help protect against fires and respond to emergencies. In its role as a utility, VMUS follows all applicable design, construction, operation, and maintenance requirements that reduce safety risks associated with its system. This Wildfire Mitigation Plan describes the safety-related measures that VMUS follows to reduce its risk of causing wildfires.
### C. SERVICE TERRITORY
Victorville Municipal Utility Services is only a distributor and does not own or operate any generating plants. The service area for Victorville Municipal Utility Services only includes the Southern California Logistics Airport (SCLA) and the Foxborough Industrial Park, less than 60 customers combined. VMUS only serves commercial and industrial customers. Southern California Edison serves all of the residents of the City of Victorville and any commercial / industrial customer not located within the VMUS territory.
### D. ORGANIZATION OF THE WILDFIRE MITIGATION PLAN
This Wildfire Mitigation Plan included the following elements:
• Objectives of the plan;
• Roles and responsibilities for carrying out the plan;
• Identification of key wildfire risks and risk drivers;
• Description of wildfire prevention, mitigation, and response strategies and programs;
Metrics for evaluating the performance of the plan and identifying areas for improvement;
- Review and validation of the plan; and
• Timelines.
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## Ⅱ
## OBJECTIVES OF THE WILDFIRE MITIGATION PLAN
The primary goal of this Wildfire Mitigation Plan is to describe VMUS' existing programs, practices, and measures that effectively reduce the probability that VMUS' electric supply system could be the origin or contributing source for the ignition of a wildfire. To support this goal, VMUS regularly evaluates the prudent and cost-effective improvements to its physical assets, operations, and training that can help reduce the risk of equipment-related fires.
The secondary goal of this Wildfire Mitigation Plan is to improve the resiliency of the electric grid. As part of the development of this plan, VMUS assesses new industry practices and technologies that will reduce the likelihood of an interruption (frequency) in service and improve the restoration (duration) of service.
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### III. ROLES AND RESPONSIBILITIES
### A. UTILITY GOVERNANCE STRUCTURE
| Agency | Address | Contact | Phone No. |
| AMR, American Medical Response | 14828 7th Street\nVictorville, CA 92392 | Administration | 760.952.7400 |
| Kaiser Permanente High Desert Medical Offices | 14011 Park Ave.\nVictorville, CA 92392 | Administration | 833.574.2273 |
| St. Mary's Hospital Medical Center | 18300 Highway 18\nApple Valley, CA 92307 | Administration | 760.242.2311 |
| Desert Valley Hospital | 16850 Bear Valley Rd.\nVictorville, CA 92395 | Administration | 760.947.5773 |
| Victorville Municipal Utility Services | 18374 Phantom West\nVictorville, CA 92394 | Hotline | 877.760.8687 |
| Victorville Municipal Utility Services | 18374 Phantom West\nVictorville, CA 92394 | Administration | 760.243.6340 |
| Victorville Municipal Utility Services – Management | 18374 Phantom West\nVictorville, CA 92394 | Director of Utilities | 760.243.6341 |
| Victorville Fire Department | 14343 Civic Drive\nVictorville, CA 92392 | Fire Chief | 760.955.5230 |
| Victorville Fire Department | 14343 Civic Drive\nVictorville, CA 92392 | Division Chief | 760.955.5231 |
| Victorville Fire Department | 14343 Civic Drive\nVictorville, CA 92392 | Emergency Medical Services Coordinator | 760.955.5237 |
| Victorville Fire Department | 14343 Civic Drive\nVictorville, CA 92392 | Emergency Management Coordinator | 760.243.6344 |
| SCLA – Airport Operations | 18374 Phantom West\nVictorville, CA 92394 | Hotline | 760.243.1915 |
| SCLA Management | 18374 Phantom West\nVictorville, CA 92394 | Airport Director | 760.243.1910 |
| Victorville – Police Department | 14176 Amargosa Rd.\nVictorville, CA 92392 | Police Chief | 760.241.1186 |
| Victorville – Public Works | 14177 Mc Art Rd.\nVictorville, CA 92392 | Director | 760.243.6332 |
| Victorville – City Management | 14343 Civic Drive\nVictorville, CA 92392 | City Manager | 760.955.5029 |
| Victorville – City Management | 14343 Civic Drive\nVictorville, CA 92392 | PIO | 760.955.5028 |
| Victorville – Traffic & Transportation | 14343 Civic Drive\nVictorville, CA 92392 | Traffic Engineer | 760.955.5156 |
| San Bernardino County: Dept. of Environmental Health | 385 N. Arrowhead Ave. #2\nSan Bernardino, CA 92415 | Administration | 800.442.2283 |
| Mission Aviation Fire Rescue | 1055 E. 3rd Street\nCorona, CA 92879 | Administration | 844.321.2733 |
| Mission Aviation Fire Rescue – Station 319 | 18550 Readiness St.\nVictorville, CA 92394 | Fire Chief | 760.246.6479 |
Pursuant to the SEMS structure, VMUS participates in annual training exercises. Training exercises include workshops and tabletop exercises. A sample of topics covered include earthquake safety, disaster response & management, and NIMS/SEMS/ICS compliance.
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WILDFIRE RISKS AND DRIVERS ASSOCIATED WITH DESIGN, CONSTRUCTION, OPERATION, AND MAINTENANCE
### A. PARTICULAR RISKS AND RISK DRIVERS ASSOCIATED WITH TOPOGRAPHIC AND CLIMATOLOGIAL RISK FACTORS
Due to VMUS's distribution system being 100% underground, the primary risk drivers for wildfire within VMUS's service territory are the following:
Earthquake
• Flooding
### B. ENTERPRISEWIDE SAFETY RISKS
Earthquake profile - There are two major faults/fault zones that directly affect VMUS. They are the San Andreas Fault and the Helendale Fault zones. The City of Victorville sits in the middle of both faults. The San Andreas Fault is the longest fault in California and is known to cause powerful earthquakes, as big as a magnitude eight (8.0).4 This fault is located south-west of Victorville. The Helendale Fault creates smaller, yet more frequent earthquakes and is located northeast of the city. The most recent major earthquake to affect the City of Victorville was the Ridgecrest earthquake, approximately 82 miles north of the city. This earthquake struck July 5, 2019 and had a magnitude of 7.1.
Large earthquakes occurring in many parts of the Southern California region could affect the City of Victorville. However, the degree to which the earthquakes are felt, and the damages associated with them may vary. At risk from earthquake damage are critical facilities, buildings, bridges, highways and roads; hazardous materials facilities; sewer, water, natural gas pipelines; earth dams; petroleum pipelines; and private property located in the city. The relative or secondary earthquake hazards, which are liquefaction, ground shaking, amplification, and earthquake-induced landslides, can be just as devastating as the earthquake.
Flooding profile - There are four types flooding conditions that exist within the City of Victorville area; flooding in defined watercourses; ponding; sheet flow; and dam inundation. Flooding within defined watercourses occurs within drainage channels and immediately adjacent floodplains. Ponding occurs when water flow is obstructed due to manmade obstacles and other roadways, where they cross-defined watercourses. Sheet flow occurs when capacities of defined watercourses are exceeded and water flows over broad areas.
Known flood-prone areas noted in the General Plan as well as recorded in city maintenance files, include: