In addition to expertise in water and wastewater process chemistry, biology and design, REI provides specialized guidance to our clients in the area of water quality compliance. From distribution system water quality to wastewater effluent disposal requirements, REI engineers investigate, identify and solve the problems facing many municipalities with respect to compliance with stringent rules and regulations. REI's water chemistry and system modeling capabilities greatly enhance our ability to develop compliance plans that are successful and cost effective. Our experience includes addressing water treatment and distribution issues such as THM formation, chloramine feed balancing, red-water complaints, high water age, and equilibrium effects from blending waters from different sources. Wastewater issues addressed by REI engineers include turbidity, nutrient removal, effluent disposal and permitting, THM formation during chlorination, and a variety of other issues. REI's leadership in the area of process chemistry and design allows our staff to provide service to our clients well beyond the typical civil/environmental engineering firm.