Alerts and Advisories


Airmask Flyer IconUPDATE! Sunday, Aug 12th 1:30pm: Due to popular demand some N95 mask distribution locations may be out of, or running low, on supplies. More masks have been ordered from Cal-OSHA and the supplies will be replenished when they arrive.  Please check alternate locations in the meantime, and look for an update on the new supply arrival.
Mariposa County, in cooperation with Cal OES, is distributing FREE N95 Respirator Masks to the community due to the persistent unhealthy air quality associated with the Ferguson Fire. Download the N95 Mask Distribution flyer for locations: (PDF)

NEW Locations as of Saturday 8/11 (not on the flyer)
* Pine Tree Market, Chilnualna Falls Rd
"Self-serve" bin location:
* Fish Camp Post Office
* Yosemite West Mailboxes

If you must be outside for an extended period, N95 masks may help to keep unhealthy air out if worn properly. When air quality is unhealthy, staying indoors in clean air spaces and minimizing outdoor activity is recommended, especially for children, the elderly, and individuals with certain medical conditions.

People with underlying medical conditions (such as heart and lung disease) are advised to check with a medical provider to determine if an N95 mask is a good option for you.

Posted Updated: August 14, 2018
08/14/18: Correction: An earlier version of this post stated this effort was in cooperation with Cal OSHA . The post has been corrected to identify Cal OES as the cooperating agency.  


Important information for people evacuated during the Ferguson Fire:

As you prepare to return to your home, know that the power was turned off. It has been off several days, therefore, most if not all, of the food in your refrigerators and freezers is unsafe to consume.

While the power may have been turned back on before you returned and the food in your refrigerators may be cold, it is NOT SAFE and should be thrown away. The same goes for the food in your freezers. Think of it as if you left a bag of refrigerator/freezer items in the trunk of your car for days.

You can find information on which items are safe to keep and which are not on the Health Department Website at:

Post updated: July 27, 2018

Have you been affected by the Ferguson Fire?

If you have been affected by evacuation or power loss, you may be eligible for support.

If you are in need of food or other items lost due to the fire please call Mariposa County Human Services at (209) 966-2000 to determine eligibility.

You may also contact to get more information and apply for services online.

Posted: July 24, 2018

Graphic of a thermometer which shows danger levelsFood Safety Info

Save or toss it?

Find out here (PDF)

Posted: July 24, 2018

Health Warning!

Ash Flyer IconDo not touch or sift ash and debris. It can contain asbestos, heavy metals, pesticides or other toxins which can be inhaled or ingested and which can cause health issues later.

Contact Public Health at (209) 966-2220  or (888) 777-0377 to inquire about cleanup assistance.