LOTT's Budd Inlet Treatment Plant and discharge of treated water to Budd Inlet are regulated under a National Pollutant Discharge Elimination System (NPDES) Permit. The NPDES is a system for issuing permits for wastewater discharges to surface waters to control pollutants and achieve the goals of the federal Clean Water Act. In the state of Washington, the U.S. Environmental Protection Agency has delegated NPDES permit authority to the Department of Ecology. NPDES permits place limits on the quantity and concentrations of contaminants that may be discharged. Permits are generally issued for a period of five years. LOTT’s NPDES permit for the Budd Inlet Plant also includes permit conditions for production, distribution, and use of reclaimed water produced at the site. LOTT has a separate permit for the Martin Way Reclaimed Water Plant.