Dr. Gregory N. Richardson, P.E., founded G.N. Richardson & Associates, Inc.
U.S. government promulgates Subtitle D of the Resource Conservation and Recovery Act to address growing concerns regarding non-hazardous wastes.
Subtitle-D rules of solid waste management become effective.
U.S. EPA finalizes New Source Performance Standards and Existing Source Emission Guidelines for Control of Emissions from Municipal Solid Waste Landfills.
Firm designs and constructs first Subtitle-D Landfill Closure in NC.
Firm designs/implements the first "Rain Gutter" cap drainage system.
EPA finalizes National Emissions Standards for Hazardous Air Pollutants for MSW Landfills, adding record keeping and LFG control requirements.
G.N. Richardson & Associates, Inc. changes to Richardson Smith Gardner & Associates, Inc.
Firm designs the first Gravity Groundwater Intercept System for a landfill expansion.
S+G becomes one of the first firms to become a Chicago Climate Exchange (CCX) Verifier of landfill carbon credits, verifying over 3 million tons of carbon credits.
NCDEQ Revises C&D Landfill Permitting rules.
NC promulgates the Solid Waste Management Act of 2007.
S+G co-designed the first Exposed Membrane Landfill Closure (Florida).
Change to Smith Gardner, Inc. This change represented the successful transition of ownership from our founder.
S+G awarded U.S. EPA Site Refuse Award for SC Superfund Site.
S+G Opens office in Columbia, SC.
U.S. EPA finalizes New Source Performance Standards and Existing Source Emission Guidelines.
NCDEQ reviews and updates solid waste regulations for transfer stations and MSW and C&D landfills.