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Photo of Douglas Liddell
Douglas Liddell
Director of Operations
Photo of Terence McManus
Terence McManus
Regional Operations Manager

Regional Highlights

drone view; inspection of mitigation bank
Drone Aids in Inspection of Mitigation Bank
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Drone Deployment Facilitates Assessment of Challenging Site
Drone Deployment Facilitates Assessment of Challenging Site
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Ecological assessment for stream restoration
Wetland and Stream Mitigation Bank Design, Construction, and Monitoring
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Aerial photograph of the site
Ecological Risk Assessments for Oil-Release Site
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University of Houston Clear Lake Wetland Complex
Stormwater Treatment Wetland Design and Construction
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Gas pump in car
National Due Diligence Program Management
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Trenching equipment
Pipeline Construction Environmental Inspection
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Gas station
Performance-Based Closure Portfolio
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Field workers in orange
Restoring Value to a Former Texas Refinery Site
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Men working on geoprobe
In-Situ Chemical Reduction Strategy at Chemical Plant
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Parcel map
GIS Enhances Groundwater Quality Program
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