Project Treatment Types
Relevant CalVTP Treatment Types and Terminology |
Wildland-Urban Interface (WUI) Fuel Reduction Area |
Strategic reduction in vegetation density and remove fuel to directly protect communities and assets at risk from potential damage from non-wind driven wildfires originating in the adjacent wildlands, as well as to protect the wildlands from fires starting in or near development. Serve as emergency access points and staging areas for firefighters and equipment and reduce flammable vegetation along emergency evacuation routes for the community. |
Fuel Break |
Strategic areas where flammable vegetation can be modified to reduce fire spread to structures, while providing a safer location for firefighters to fight fires. In forested areas, the tree canopy is thinned to reduce the potential for a fire to move quickly or to reduce fire spread into or through the canopy. Ladder fuels and woody understory vegetation are thinned out. Overstory and understory vegetation is spatially separated so that a ground fire will not burn too hot or climb into the canopy and turn into a crown fire. In grasslands, vegetation would generally remain, but encroaching shrubs and trees may be limbed, thinned, or removed. |
BEFORE
AFTER
Fuel Reduction |
0 to 100 up to 150 feet swath, as determined appropriate by fire professionals and based on site conditions, treatments are focused on higher intensity fuel reduction achieving desired vertical and horizontal spacing more typical of defensible space. |
Fuel Reduction Zone
Forest Health Zone
100 feet
150 feet
200 feet
300 feet
All healthy, mature native trees would be left intact and in place unless removal is required due to structural or health defects that place infrastructure or lives at risk.
Forest Health Restoration |
Generally, vegetation treatments would be lower intensity, focused primarily on forest health such as by removing invasives species and over-accumulation of dead and downed vegetation. |
BEFORE
AFTER
Example of Treatment Areas
Treatments are intended to address a vegetative landscape that has not seen fire for at least a century and intends to restore treated areas around our homes/community to a more natural, healthy, and fire adapted condition reducing accumulated ground and ladder fuels and dead and down woody debris.
Prescribed Herbivory |
Grazing includes the use of livestock (e.g., sheep, goats, cattle) to reduce fuel loads, typically in shrubland and forest understory, but grasslands as well, and may be used as a pre-treatment before implementation of other methods. |
Ground-Based Mechanical Treatment |
Motorized equipment can be mounted with various mowing, mulching, and masticating heads for larger scale vegetation removal, roadside treatments, and maintenance. Grass can be mowed with tractors. The equipment and tools that could be used include skid steers or tractors with mounted masticators or mowers; and ride mowers. |
Project Treatment Methods
Manual Treatment |
Powered and non-powered hand tools will be used. Non-powered hand tools used for cutting most commonly include loppers, hand pruners, hand saws, and hatchets. Common powered hand tools include chainsaws and string trimmers. |
Herbicide Application |
Herbicides use in a targeted manner as stump and spot spray treatments to kill or prevent regrowth of invasive and non-native species. Herbicides would be applied in a manner to prevent overdrift. |
Biomass Processing |
Pile Burning |
Pile burning involves the burning of surface fuels in compliance with CAL FIRE and Bay Area Air Quality Management District. Piles are generally 4 feet in diameter and 4 feet in height. |
Chipping |
The vegetative material would be fed through the chipper and broadcast at treatment areas or hauled away for processing. |
Other treatment methods are used on an as needed basis based on site conditions
Broadcast Burning |
Prescribed burning to reduce fuels over a larger area or restore fire resiliency in target fire-adapted plant communities; conducted under specific conditions related to fuels, weather, and other variables. |
California Vegetation Treatment Program
EIR Process
What is the CalVTP EIR?
Type of Treatments Covered?
Covered Activities?
Source: Ascent Environmental
Cultural Resources |
Effects on archaeological, historic, and tribal cultural resources |
Protection Measures
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Biological Resources |
Effects on special-status plants and wildlife, sensitive plant communities, and wetlands |
Protection Measures
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Visual |
Effects on views due to project including to recreationalists on trails and roads |
Protection Measures
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Air Quality |
Effects of emissions |
Protection Measures
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Landslide, Erosion, and Water Quality |
Effects on steep and unstable slopes, erodible soils, and waterways (creeks, reservoirs) |
Protection Measures
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Noise |
Effects on adjacent noise sensitive receptors |
Protection Measures
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Key Resource Concerns and Example �Standard Project Requirements
Replica of traditional Miwok home, Miwok Park, Novato