Ryan Duckett

Ryan Duckett

Speaker | SCS Engineers

Midlothian, VA | rduckett@scsengineers.com

USCC Member

Mr. Duckett has served as an engineering consultant for landfill, landfill gas, and sustainable materials management operations in SCS’s Richmond, Virginia office for five years. He is an NC State University Environmental Engineering graduate, licensed Virginia PE, and is pursuing an MBA at Virgnia Commonwealth University. His work includes project management for solid waste facilities and programs planning, development, and analysis- related projects including facility implementation feasibility, preliminary/final design,  material collections evaluations, transfer studies, disposal options studies, scenario analysis, recycling/diversion recommendations, financial and operational assessments, and education and outreach support. He has also performed environmental engineering work related to permitting, compliance, regulatory reporting, odor management, construction quality assurance, GHG emissions, and pollutant inventories at solid waste management facilities. Mr. Duckett serves on the board of the Virginia Composting Council. He is also active in SWANA (Old Dominion Chapter), SVSWMA, and ASCE and has given multiple presentations at several industry events.

Session Name: Municipal Composting 1: Building and Financing Yard Debris Facilities

Session Time: Wednesday, January 29, 8:00 to 9:15 AM

Presentation Title: Yard Waste Center CIP (Capital Improvement Plan) Development And Legacy Organic Stockpile Removal Considerations

Presentation Description: The City of Raleigh retained SCS Engineers to assist with the process of capital project planning for new and/or upgraded Solid Waste facilities and programs. Specifically, SCS conducted an operational evaluation and developed preliminary documentation for facility improvements and expansions, including the City’s Yard Waste Center (YWC), which manages over 150,000 cubic yards of material each year. Organic material, primarily yard waste, leaves, storm debris, and pallets, are mulched and/or composted, both of which generate products made available to the general public for purchase. A significant quantity of material stockpiling has occurred over two decades. Most has been placed in what is referred to as the “Legacy Stockpile,” roughly 200,000 CYs in size and composed of degraded woody and vegetative material. In addition, there are significant stockpiled volumes of leaves.

SCS’s work notably consisted of an operational review and development of drawings showing a phased YWC site plan for infrastructure improvements. Site operational and layout changes, along with the potential implementation of aerated static pile (ASP) composting, could enable the City to develop a sustainable inflow and outflow of material. Prior to implementing such changes, the City must eliminate the piles by an early-2021 deadline set by NCDEQ. SCS assisted investigated various options, interviewed potential material acceptors, and reviewed mobile processing technology that could reduce the material volume needed to be hauled off-site. Currently, SCS is in the process of implementing a stockpiled materials testing protocol.

There appears to be the potential for reviewing and addressing similar organics management operations, specifically in regards to aged stockpiles, whether such piles consist of mixed debris or simply leaves. This presentation will review the findings of the project so far, outlining the removal plan development findings as well as other considerations made during the overall effort to  provide insight to other municipalities.