Waste Facilities on Protected Waterways
Washington’s Industrial Stormwater General Permit (ISWGP) applies to all facilities conducting industrial activities that discharge stormwater to a surface waterbody or to a storm sewer system that drains to a surface waterbody. Through the ISWGP, Environmental Protection Agency (EPA) and the Department of Ecology (Ecology), resources have been committed to funding the cleanup of contaminated sites. A few examples of these contaminated sites are the Lower Duwamish Waterway (LDW), added to the Superfund National Priorities List in 2001 and Blair Waterway which began its national cleanup action in late-2015. It is through these cleanup actions and higher regulatory oversight that industrial facilities have adopted and embraced stormwater treatment as a means to meet the ISWGP.
This paper and presentation will focus on a showcase of solid waste/recycling handling facilities that discharge either directly or indirectly to the LDW or Blair Waterway that are utilizing active and passive treatment systems to comply with stringent water quality regulations. Each solid waste/recycling handling facility is different as each resembles unique sources, type, and volume of contaminated stormwater and process water. Through this paper/presentation, we will review one operations and material recycling facilitys’ (MRF) and one reload facility designed to capture and ship solids from ongoing dredge operations. This showcase will demonstrate technologies that are capable of meeting extremely low benchmarks/limits for persistent pollutants and contaminants of concern consistent with the ISWGP at these waste facilities.
Operations and Materials Recovery Facility (MRF)
Waste Management (WM) JMK Fibers (JMK) is a MRF operating in the Port of Tacoma with stormwater outfalls that end up in the Blair Waterway. The facility processes approximately 40 tons per hour of many types of material, including loose single stream recyclables, old corrugated containers (OCC), and different types of paper roll stock and various other grades of paper. In 2015, JMK had stormwater pollution exceedances for turbidity and zinc triggering Level 3 Treatment BMP Corrective Active and Level 2 Structural BMP Corrective Action, respectively. WM decided to implement an advanced treatment system to address the Level 3 correction action requirements. Multiple treatment methods were tested and sand filtration followed by multi-media filtration utilizing GAC and Purolite was selected,
Duwamish Reload Facility
The Duwamish Reload Facility is a 15.85-acre industrial property that accepts and reloads petroleum-contaminated soil (PCS) from upland construction sites into railcars or trucks for disposal. As material arrives to the site, dredged sediment decant water that accumulates is collected and was deemed too contaminated to discharge to sewer under sanitary benchmarks. Considering the planned Facility operations, the documented results from other water treatment projects, and the desire to have a robust and automated treatment system for this Facility, a packaged chitosan enhanced sand filtration (CESF) system with additional treatment by granular activated carbon (GAC) had been selected for water treatment. Following some aggressive permitting, a 250-gallon per minute (gpm) treatment system was designed and installed in early 2015 and has maintained 100% compliance with the project’s sanitary benchmarks.
Nathan Holloway has been working in the stormwater and environmental fields for the past 16 years. During that time he has developed strong working relationships with contractors, industrial permittees, municipalities and regulators to address complex projects with practical, cost effective and innovative treatment solutions. Nate's treatment experience ranges from high-flow active treatment systems to passive or enhanced low impact development (LID) features and he is well regarded for his ability to develop customized solutions to each project. Mr. Holloway is active in many committees and organizations related to water quality and is well known as an educator in the stormwater industry. In his role as Vice President at Clear Water Services, Nate is responsible for the Business Development, Operations and general management of the company.