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Ash Pit Hazards

 

Ash pits are an inherent and hidden risk to wildland firefighters that can cause severe burns and injuries. Ash pits are created when a ground fire consumes underground fuels creating an empty space that is imperceptible from the surface.

Environmental factors that increase the risk of ash pit formation after a wildfire:

  • Extensive root systems of trees and shrubs.
  • Deep duff or peat, which is the organic layer covering mineral soil.
  • Landscapes that have once been cultivated or manipulated by heavy equipment, old dozer piles, sawmills, timber sale yards, or decking areas.
  • Animal dwellings that have become filled with decadent combustible debris.
    • Small rodent holes,
    • Beaver holes near dams and stream beds, or
    • Badger and coyote dens.
  • White ash is sometimes an indicator of ash pits, as are swarms of hovering insects.
  • With the sun behind the suspected ash pit, look for small nearly translucent smokes that dissipate quickly above the ground.
  • Ash pits often give off the smell of incomplete combustion or of creosote burning.

Mitigation measures to consider:

  • Identification of high-risk landscape.
  • Identify and flag all hazardous discovered ash pits.

 

Category
Misc Fireline Hazards
References
Safety Advisory: Ash Pit Safety (while information may be outdated, it is still…
One Ash Pit Ate Two firefighters: Blog post from the Lessons Learned Center
Ash Pit Burn Injuries - Southcentral Alaska
Ash Pit Burn Injuries - Swan Lake Fire

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Updated NWCG Standards for Wildland Fire Resource Typing, PMS 200 Now Includes Off-Highway Vehicle Typing Standards

Date: May 13, 2025
Questions?  Please contact:
Mobile Fire Equipment Subcommittee 

The NWCG Standards for Wildland Fire Resource Typing, PMS 200 has been updated to include newly developed Off-Highway Vehicle (OHV) typing standards. These standards organize OHV information into logical categories and outline key safety requirements for occupants.

NWCG Standards for Wildland Fire Resource Typing, PMS 200 establishes minimum typing standards for aircraft, crews, and equipment used in national mobilization to wildland fire incidents. Typing designations are assigned based on measurable capability and performance criteria.

References:

NWCG Standards for Wildland Fire Resource Typing, PMS 200

NEW! S-204, Interpersonal and Critical Thinking Skills for Safety Officers Now Available

Date: May 12, 2025
Questions?  Please contact:
Risk Management Committee

The S-204, Interpersonal and Critical Thinking Skills for Safety Officers self-directed online course is now available! Developed through the Incident Performance and Training Modernization (IPTM) effort, this training supports individuals working towards Safety Officer, Field (SOFF) incident qualifications.

S-204, Interpersonal and Critical Thinking Skills for Safety Officers focuses on facilitating hazard mitigation conversations and building trust to influence safety-related decisions. Individuals can self-enroll through the Wildland Fire Learning Portal (WFLP).

Any changes to qualification pathways will take effect with the next update of the NWCG Standards for Wildland Fire Position Qualifications, PMS 310-1.

References:

S-204, Interpersonal and Critical Thinking Skills for Safety Officers 

NWCG Safety Officer, Field (SOFF) Position Page

Wildland Fire Learning Portal

Great Basin Cache Upgrading to New Inventory System

Date: May 7, 2025
Questions?  Please contact:
Great Basin Cache
Phone: (208) 387-5104
Fax: (208) 387-5573

The Great Basin Cache (GBK) is transitioning to a new inventory system to better serve the wildland fire community. During this upgrade, GBK will be unable to process standard orders from Part 1: Fire Supplies and Equipment and Part 2: Publications between May 8-20, 2025, with exceptions made for emergency fire orders. Orders will be accepted through close of business May 7.

To browse the latest available items, please refer to the National Fire Equipment System (NFES) catalogs. 

References:

NWCG NFES Catalog-Part 1: Fire Supplies and Equipment, PMS 449-1

NWCG NFES Catalog-Part 2: Publications, PMS 449-2

NEW! Air Operations Summary (ICS 220 WF) Now Available

Date: May 2, 2025
Questions?  Please contact:
National Interagency Aviation Committee

The Air Operations Summary (ICS 220 WF) provides the Air Operations Branch with the number, type, location, and specific assignments of helicopters and air resources. The new ICS 220 WF also includes medical extraction capabilities and air resources tracking.

Understanding the capabilities of aviation assets is critical for effective medical and extraction responses. Coordination with the Medical Unit Leader is essential to ensure alignment and consistency between the ICS 220 WF and the Medical Plan (ICS 206 WF). 

References:

Air Operations Summary (ICS 220 WF)

National Interagency Aviation Committee

Incident Command System (ICS) Forms