Keeping Hillsides Green and Waterways Clean for over 25 Years! Case Study from Bonita Springs, Florida - May 6th 2011 Keeping water clean in and around jobsites just got easier. How is that possible when today’s standards are tougher than ever you ask? The Klarifier™ activated by StormKlear is the answer! Midwest Construction Products’ Klarifier™ featuring StormKlear’s Dual Biopolymer system incorporates a modified sediment retention bag with preloaded Biopolymer injection system inside. While the common sediment retention bag of the past works well at taking some sediment out of the water, they do not get the water to today’s compliancy levels. Contaminated Water How does it all work you ask? Contaminated water is pumped from the construction area with a standard Contaminated Water jobsite dewatering pump at a rate of 800 to 1000 gallons per minute. The outflow hose of the pump is connected to the Klarifier’s Activation Injection Port. The Activation Injection Port is part of the Klarifier’s injection baffle system designed specifically to agitate, dose, and activate the StormKlear Dual Biopolymer system. Many States already require the use of BMPs to control and maintain storm water runoff at construction sites. Now it is an EPA federal regulation, part of the Clean Water Act. Let Midwest Construction Products be your resource in staying compliant with local, state, and federal regulations. Fox River Grove, IL

Keeping Hillsides Green and Waterways Clean for over 25 Years! Treated Water The treated water is then cast through a specialized baffle system that helps agitate the water. The water is then forced through a geofilter envelope where the sediment is then contained within the specialized sediment retention bag. As the bag fills, clean treated water is then forced out of the bag returning to the contaminated area. The picture below shows a Bonita Springs city official filling a sample bottle of water coming out of the bag. How did we measure success? Background NTU numbers on this project were...