Get yourself a stormwater filter
If you want to take control of the type of materials and chemicals that make it in to the ground water in your area, you should look around on line to get more info about a stormwater filter that can trap these types of things before they head all the way down the drain. There may be a local company that can tell you more about the options you have in a stormwater filter, and then install it for you near your home, so I recommend that you do a little searching around on the world wide web to see if there are any companies like that around you.