Tour of the Ashevillage Institute Demonstration Site Part 2

Storm water runoff travels through our 4" pipe at a 2% grade.
The first flush of water that comes from a storm carries the most pollutants. The dirty water first flush is diverted into a 50 gallon barrel. The 50 gallon barrel has a 1/2" hole drilled in the bottom side to let the water slowly drain out between rain events.
For every 1mm of rainfall that's diverted through a first flush system 50% of the pollutants are removed.

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