National Pollution Discharge Elimination System (NPDES) permits are required for surface water discharges. These permits must be renewed every five years. NPDES renewals can require an extensive amount of data and often raise new issues. Changes in receiving water body quality or concerns about thermal pollution may cause regulatory agencies to impose very stringent effluent limits. These restrictions can significantly affect your facility’s production and operating costs. Through our experience with NPDES issues, we help our clients to develop an effective permitting strategy.