I would like to see you do three things to your landscape the day after a rain in the desert; make sure your irrigation applications are away from cement and steel structures, inspect your landscape and fruit trees and shrubs for borer activity and take care of any mushroom problems that appear. Water in the desert is very destabilizing. Desert soils are formed under eons of dry weather. Keep water away from cement and steel. Borer activity will express itself with sap oozing from the trunk and limbs the day after a rain if they are present. Mushrooms are a good sign in a residential landscape. It's a sign of biological activity.