Is it ever OK to discharge highway runoff to ground?

As we start to deliver more SuDS for highways in the UK, and the pace of that delivery is picking up, we need to think long and hard about the risk to the environment from discharges of grossly polluted  runoff into soils, groundwater and surface water features. Read my latest Blog as I try to unpick the legislation surrounding this topic: The use of infiltration SuDS for highway runoff and the associated legislation