Sharraxaadda

Each rainy day is a big problem. Right in front of my house, a pocket of water is stored there. Every car passing by throws dirty water from that pocket over my house, over my car, over whoever standing outside. This morning it was a big issue between my son and a car throwing water over him while he was going to his car. I am sick and tired of complaining, nothing has been done. Please tell me what next step I should take to resolve the problem. Thank you.