As authorized by the U.S. Environmental Protection Agency (EPA) under the Clean Water Act, the National Pollutant Discharge Elimination System (NPDES) permit program controls water pollution by regulating point sources that discharge pollutants into waters of the United States. Point sources are discrete conveyances such as pipes or man-made ditches. Individual homes that are connected to a municipal system, use a septic system, or do not have a surface discharge do not need an NPDES permit; however, industrial, municipal, and other facilities must obtain permits if their discharges go directly to surface waters.
Stormwater discharge permits are required for certain activities by EPA regulations at 40 CFR § 122.26(b)(14). In compliance with this regulation, the Nevada Division of Environmental Protection (NDEP) issues permits to regulate the discharge of stormwater to the Municipal Separate Storm Sewer System.
area of interest
Activities that take place at industrial facilities, such as material handling and storage, are often exposed to stormwater. The runoff from these activities discharges industrial pollutants into nearby storm sewer systems and water bodies. This may adversely impact water quality.
The NDEP requires industrial facilities to obtain a Multi-sector General Permit if they are defined as “stormwater discharges associated with industrial activity” under the 11 categories listed in 40 CFR §122.26 (b)(14)(i)-(xi). See the following link Who's Covered for the NDEP website that discusses the 11 categories.
Operators of industrial facilities or sites with activities included in one of these 11 categories must obtain coverage under an NDEP Multi-sector General Permit unless conditionally excluded. Exclusions include any Mineral Industry Facilities defined within SIC code 10 under Category III of 40 CFR §122.26(b)(14); or Construction activity defined under Category X of 40 CFR §122.26(b)(14). If an industrial facility discharges wastewater associated with industrial activities, then that facility will need an individual discharge permit in addition to their ISW Permit. For more information on Nevada’s Industrial Stormwater Permit requirements, see the following link for the NDEP Bureau of Water Pollution Control website: Permit Application Requirements
Permit Application Requirements : State of Nevada's required forms and procedures for obtaining a Multi-sector General permit.
Who's Covered : Identifies SIC codes and the 11 categories of "storm water discharges associated with industrial activity".
Industrial Stormwater Permitting Guidance : EPA guidelines for industrial stormwater permitting.
Developing Stormwater Pollution Prevention Plans : EPA manuals detailing guidance on developing industrial stormwater pollution prevention plans (SWPPP).
General Industry, Business Owners, Manufacturing, Chemical Distributors and Manufacturers, and Warehouse Operators.
Building Maintenance Departments, Property Owners, Service Stations, Fast Food Restaurants, Auto Repair Shops, Window Washing Services, Mobile Washing Services
Gas Stations, Auto Repair Shops, Auto Body Shops, Car Dealerships, Mobile Fleet Managers, Airplane Maintenance, and Mobile Fleet Washing Services
General Contractors, Construction Inspectors, Home Builders, Developers, Masons & Bricklayers, and Construction Workers
Bulldozer, Backhoe & Garden Machine Operators, Developers, Dump Truck Drivers, General Contractors, Home Builders, and Site Supervisors