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It’s probably the biggest threat that we face living here in the middle of a National Forest. Fires start for many reasons, some natural and some man-made. A CERT mission is to assist the San Bernardino County Fire Department in their efforts to educate residents in ways they can help prevent fires. But, when fires do start, CERT will be there to help residents too.  One of our missions is to make sure that every resident knows the emergency routes off the mountain. When necessary, CERT volunteers will be there to comfort and console those who have been merely displaced, or as we saw in the Grass Valley fire...those who lost everything.
Earthquake
Living almost on top of the San Andreas Fault presents a special threat to mountain residents. Fragile roads on slender-legged bridges snake along steep rock faces to allow access to our communities. In the event of a major rupture of the San Andreas, we can count on significant rock slides at least, and downed bridges at worst. Officials estimate that we might be on our own for as long as a week. In reality, it might take weeks, or even months, to reestablish full access. If we are trapped on the mountain, we may be without basic necessities for a very long time. Fire and police services may be stretched to the maximum. CERT volunteers, after they have taken care of their own families, have pledged to help residents cope with the trials we will face from a major quake.
Blizzard
Video of the 2007 Grass Valley Fire
Video of the threats posed to us on  the southern section of the San Andreas Fault
Terrorism
It’s not often that the Lake Arrowhead communities get hit with a storm of such intensity that travel, power, and communication get shut down for weeks. However, days without power are certainly a possibility, which means that the lack of food and
Our resort area is not the most likely target for terrorism, but there’s little doubt that the major Los Angeles metropolitan area down below, with its business
heat could become a problem for some of our residents, especially the elderly. CERT volunteers become familiar with their immediate community area and try to find out who might need help, either before, during, or immediately after a major storm. This is just another example of people helping people and is one of the major tasks of CERT...to know the community.
centers, railroads, highways and other significant infrastructure, would be on the list of any terrorist group in the world. Since we are not self-sustaining here in the mountains for more than a few days at a time, a significant attack on Los Angeles, while perhaps having little immediate impact on us, would pose a serious longer term threat.  
Bio & HazMat
A HazMat event here in the mountains would most likely involve a truck that spills a load of hazardous materials on one of our mountain roads.
However, either biological or hazardous materials might be utilized in a terrorist attack, also. The usual response required by authorities is that residents stay in their homes, with windows and doors closed until the threat from the hazardous material has dissipated. You’ll find even more comprehensive guides and directions elsewhere on this website.
THREATS
Fire