Preparing for the Rain

This is a picture of the property that floods mine. All the run-off from the street comes in at their drive and runs down the sidewalk onto my property. This is a huge toxic mess of Antifreeze and motor oil!
The new tenants for the house up the hill have arranged their downspouts to drain onto my property, also, causing my family room to flood. And, because their roof is asphalt shingles, all the rain water collected from it is cancer causing!
Today I re dug the drainage ditch I dug last year and dug an extension to handle the water from the downspouts.
Tomorrow it will rain again. We'll see what happens then!