Driving and parking surfaces at the chemical plant used to be gravel but it was dusty or muddy. Draining stormwater to one side of the property would have been expensive, so they followed the site’s natural contours. The east side is 66% of 7.5 acres and drains to an above ground detention pond. There was some standing water in the pond, but there is a high fence around the property with a manned security guard station. The west side drains via multiple inlets to a Rainstore3 retention area beneath a concrete loading dock pad. The outfall into the city system is controlled by a shut off valve on a single 6” pipe. For safety, if there is a chemical spill, they can shut the valve, pump the contents out, and clean up the spill.

Four trucks are parked at the loading dock, with Rainstore3 located underneath the concrete pad.

One of the multiple inlets that collects parking lot surface runoff stormwater. Brown brick historical building is the headquarters for Nufarm.

Installation photo. 12 unit high cells. The dock doors are just visible behind the Rainstore3 cells and above the excavated area. Photo courtesy Joseph A Schudt & Associates ©2001.

A long strip drain collects water for dumping in the above ground pond in the rear of the photo.

The last inlet near the back of the buildings that drains toward Rainstore3 loading dock area.