If you store oil or oil products, you could be subject to the Spill Prevention Control and Countermeasure (SPCC) regulations. These federal regulations (40 CFR Part 112) require that certain procedures, methods and equipment be used to prevent and contain discharges of oil or petroleum products. This includes the development of a spill prevention and response plan. The SPCC regulations apply to non-transportation-related facilities that store oil or petroleum products in greater than threshold quantities and, due to facility location, a discharge could reasonably be expected to reach a waterway (including sewer pathways). Here’s a good fact sheet from Ohio EPA on the subject.  5/10/2017