Perhaps the landscape committee and/or homeowners in your community can use the free mulch. It is okay to use fresh arborist wood chips as mulch around trees and shrubs as long as they are not incorporated into the soil. They are not recommended for use around annuals and vegetables.The mulch can also be used in pathways. 

Mulch should be no thicker than several inches and away from the trunks and stems of trees, shrubs, and perennials. https://extension.umd.edu/resource/mulching-trees-and-shrubs

Try to plant at least 3 feet away from the stump of the previous tree (even a little further away would be better) if possible. This provides ample growing/rooting space.  Where you are placing the new tree, make sure the roots of the old tree and wood chips are removed as much as possible. You may need to fill in the area with some top soil. Make sure you are planting into mineral soil, not wood chips that will gradually decompose. https://web.extension.illinois.edu/askextension/thisQuestion.cfm?ThreadID=15340&catID=199&AskSiteID=87

On our website you will find information about preparing the new planting hole and how to plant the tree correctly. It is very important to not plant it too deeply (a very common problem). You should see the root flare of the tree right at the soil line. Expect that new soil will subside (sink in a bit over time as it settles) so if you are adding soil you could wait a while for it to settle and plant in the fall. That way you would avoid any egg laying activities of the cicadas. 

https://extension.umd.edu/resource/planting-tree-or-shrub

Marian