Washington Trucking Associations

Storm Water Program

WTA has partnered with NES, Inc. to develop and manage our new Storm Water Program. This program is designed to assist WTA members in complying with the Washington Department of Ecology’s Industrial Stormwater General Permit (ISGP). The ISGP requires industrial facilities, including the trucking industry, as of January 1, 2020, to obtain permit coverage in order to discharge stormwater from their property. The goal of the ISGP is to ultimately protect water quality and maintain beneficial use for our waterways. Here is a breakdown of the ISGP, including who needs to apply:

Industrial Stormwater General Permit Overview

The ISGP is a type of National Pollutant Discharge Elimination System (NPDES) permit required under the Clean Water Act. The ISGP requires applicable industrial facilities to develop a Storm Water Pollution Prevention Plan (SWPPP) that describes and evaluates onsite industrial activities (i.e. vehicle maintenance, fueling, and washing) that could discharge pollutants into the storm water drainage system. The SWPPP identifies potential pollutants (i.e. oils, greases, fuel) and describes the Best Management Practices (BMPs) implemented to prevent or reduce pollutant exposure and discharge. Permitted facilities are required to collect storm water discharge samples throughout the year to quantify the amount of pollutants leaving their property and to assess the effectiveness of their BMPs.

Who Needs Permit Coverage

The trucking industry was recently added to the list of regulated industries required to obtain ISGP coverage, effective January 1, 2020. This requirement is based on the facility’s North American Industrial Classification System (NAICS) Code reported on their business license. Trucking facilities utilizing NAICS Codes 484XXX and 4247XX are required to obtain ISGP coverage IF they perform vehicle maintenance onsite (including repairs, servicing, fueling, washing), any of those activities are conducted outdoors, and storm water discharges from the property. Discharge can be through a storm drain system or surface flow off the property boundary. Facilities that meet these 3 requirements (NAICS Code + maintenance + discharge) must apply for ISGP coverage with the Department of Ecology.

WTA AND NES

are here to help

The WTA Storm Water Program (WTASWP) provides members with a range of stormwater consulting services through our environmental partner, NES. WTASWP members receive the following benefits as part of their annual WTASWP membership fee (note this fee is separate from your annual WTA membership):

For additional information, please review the WTASWP Membership Benefits Summary or contact the NES storm water team at stormwater@nesglobal.net or call them at (916) 353-2360.

Washington Trucking Associations and NES

are here to help

The WTA Storm Water Program (WTASWP) provides members with a range of stormwater consulting services through our environmental partner, NES. WTASWP members receive the following benefits as part of their annual WTASWP membership fee (note this fee is separate from your annual WTA membership):

For additional information, please review the WTASWP Membership Benefits Summary or contact the NES storm water team at stormwater@nesglobal.net or call them at (916) 353-2360.