While they may be easy to overlook, you can find at least one of our 75,000-plus storm drains on nearly every street in Philadelphia. Designed to take stormwater away from our streets, storm drains (or inlets) form a direct connection between our neighborhoods and the watersheds in which we live.

What does that connection mean? It means that, when people litter, leave pet waste behind, or let old cars leak oil in the street, that stuff washes down the storm drain and enters our water supply.

On the other hand, inlets blocked with trash, snow, leaves, construction debris and sediment can make local flooding worse when we have heavy rain and water can’t drain properly.

So, who takes care of our storm drains? And what can residents do to keep pollution out of our waterways and ensure the storm drains work properly?

Here to answer some of those questions during Infrastructure Week is William Shields, the head of our Inlet Cleaning Unit.