Environmental Specialist Services Overview

Environmental Specialist Services brings together world-leading advice in such areas as Air Quality, Acoustics, Ecology and Landscape Architecture.

Service Line News

SLR's response to Coronavirus / COVID-19

July 01, 2020

​In response to the ongoing global pandemic, SLR is actively following the advice and guidance on coronavirus provided by the relevant national and state governments. Our leadership team and H&S professionals are regularly monitoring developments and updating advice to our people using all available communications channels. That advice covers infection risk, travel guidance, office management, working from home and ongoing support to all employees.

View Article
View all articles

Service Line Team

Shane Elkin

(APAC) Close

Shane is experienced in environmental, transportation and industrial noise monitoring, prediction, assessment and control. He has had extensive involvement in a large number of strategically significant infrastructure projects requiring varying degrees of community consultation and has also presented as an expert witness.

Stewart Lenton

(EUR) Close

Craig Johnston

(CAN) Close

Tim Desselles

(US) Close

Mr. Desselles has 16 years’ experience in environmental permitting and compliance with a focus on industrial facilities and major capital projects in a variety of industries, including iron and steel, synthetic organic chemicals, liquefied natural gas, petroleum refining, inorganic chemicals, power generation, and carbon black manufacturing. Tim’s work has had a particular emphasis on the development of greenfield capital projects and major facility expansions, including multi-media environmental assessments and licensing, PSD/NNSR and Title V air quality permitting, environmental impact assessments, agency negotiations, social performance, and regulatory compliance systems development.

Tim has directed the preparation of initial permit applications and significant modifications for major source Title V and PSD permits, developed and audited environmental compliance management systems, investigated emissions and discharge concerns, assisted clients with selecting appropriate environmental control technologies and negotiating vendors, and provided litigation support in defense of permits and enforcement actions. In 2011, he obtained the first-ever PSD permit issued in the U.S. for emissions of greenhouse gases (Nucor Steel Louisiana).

Rob Hounsome


Rob Hounsome has more than 20 years’ experience as a leader responsible for operational and strategic leadership of consulting businesses across multiple offices and engineering and scientific disciplines.

He has specific experience of environmental management requirements of mining, oil and gas and manufacturing/industrial development of associated issues ranging from those affecting biodiversity and social impacts through to waste and water management, control on air and noise and emergency response planning.