Improving water quality since 1997 | Applied Polymer Systems, Inc. is the originator of Floc Log®, Silt Stop® and Pond Log® products which are innovative blends of anionic PAM based products used for water clarification, erosion control, soil stabilization, soil thickening, pond/lake management, and inanimate nutrient removal. All APS products are safe for fish and other sensitive aquatic organisms and have undergone Acute and Chronic WET testing by third party EPA certified laboratories. Floc Logs® and Pond Logs® remove turbidity including sediments, heavy metals and inanimate nutrients such as excess phosphorus. Silt Stop® powder can be applied to the soil for erosion control, soil stabilization and dust control. Silt Stop Powder® can also be used for soil thickening in demucking to make it more manageable for removal and hauling.