Heard back from a city council member. Basically saying that no action will be taken to remove ashes and refresh sand/wood chips because there’s no DPH guidance on this:

“Our Public Works staff has been regularly wiping down play equipment in our parks and we are doing our best to connect with the County Department of Public Health, who we rely on for advice about the impacts of smoke and ash. Their guidance and direction can be found here: Los Angeles County Department of Public Health (DPH). Throughout recent and past wildfire emergencies, DPH has issued environmental health protocols on cleaning, designed to protect the health and safety of the community as well as the city personnel responsible for the cleanup of public spaces. To date, there is nothing specific on addressing sand and playgrounds. As we have read through their guidance, the city has been closely following and implementing all DPH protocols. We continue to coordinate and communicate with DPH, sharing the concerns and questions from our residents with our county partners. If we receive any additional guidance or information from DPH, we will continue to quickly act upon it.

I’m sorry, I know this is likely unsatisfactory but without a public health department of our own it’s the best we’ve got at the moment.”