Hazardous Waste

Someone has begun pouring automotive oil next to my garage. Not only is it hazardous waste but it is also a fire hazard. I am trying to catchup with whoever is doing this. I have a hunch it is the guys rebuilding cars back here. The new landlords are completely absentee and sadly full of promises yet not acting on the tenants complaints. Thankfully we have a great City in spite of the slumlords.