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Completion of tire-chip operations layer on new landfill cell in Cowlitz County, Washington
Cowlitz County, Washington landfill expansion
Inspecting 21-year old exposed geomembrane liner in leachate pond
Performing CQA on tie-in weld for new landfill cell expansion
CQA evaluation of onsite destructive seam testing
Construction of leachate collection layer on new landfill cell
Aerial photo of secondary containment installation around diesel fuel storage tank farm
Aerial photo of secondary containment installation around diesel fuel storage tank farm
Aerial photo of secondary containment installation around diesel fuel storage tank farm
CQA inspection of batten-bar connection of liner to tank ringwall
CQA inspection of boot fabrication for pipe penetration in secondary containment system
Aerial photo of new forest-products landfill cell construction: designer and CQA manager
Aerial photo of new forest-products landfill development: designer and CQA manager
Biofiltration swale: responsible for site design and construction at forest products landfill
Intermodal waste transfer pad at Weyerhaeuser regional landfill (R. Thiel design engineer for 20
Intermodal waste transfer pad at Weyerhaeuser regional landfill (R. Thiel design engineer for 20
Observing heat tacking of GCL seams on new liner system designed by us
Performing CQA on placement of leakage detection system on mining process pond in Arizona
Performing landmark industry field study on GCL overlap shrinkage at mining site in Arizona
Performing CQA on overliner placement at Carlota Copper mine leach pad
Overview of large copper leach pad construction project: design, design review and CQA services
Observing placement of solution pond extraction pipe at Arizona mine
Observing placement of solution pond extraction pipe at Arizona mine
Performing CQA on overliner placement at Carlota Copper mine leach pad
Observing geosynthetics deployment at Carlota Copper mine project
Overview of nearly completed construction of 150 ac leach pad: design review and CQA
Overview of nearly completed construction of 150 ac leach pad: design review and CQA
CQA observation of installing perforated LCRS pipe at landfill cell expansion in SW Washington
Leak location test during construction of new landfill cell
Designer & CQA officer for large new cell construction at regional landfill in eastern Washington
Sedimentation basin at Weyerhaeuser landfill (R. Thiel design engineer for 20 years)
Aerial view of Weyerhauser regional landfill (R. Thiel design engineer for over 20 years)
Wild horses at landfill site
Double-lined landfill leachate ponds. Designed unique air-inflated cover over pond
CQA observing Positrac deployment of GCL at large regional landfill in eastern Oregon
Compaction of new landfill subgrade: designer and CQA manager
Design review and CQA Carlota Copper leach pad construction
Design review and CQA Carlota Copper leach pad construction
Designer for double lined landfill with steep sideslopes and benches
Designer for double lined landfill with steep sideslopes and benches
Sump construction at double-lined landfill: designer
Placing gravel on double-lined landfill: designer
Double-lined landfill construction: designer
Coffin Butte landfill: overview, designer (nearly 20 years), CQA manager for most of construction
Coffin Butte landfill: overview, designer (nearly 20 years), CQA manager for most of construction
Design of landfill leachate collection piping, pump station, and force mains
Designer & construction services: observing GCL deployment for new cell at forest products landfill
Design & construction: observing geomembrane deployment for new cell at forest products landfill
Elk walking over final landfill cover designed and certified by Thiel Engineering in SW Washington
Liner system tie-in to existing liner designed and observed by us for Weyerhaeuser Co
Observing drainage layer placement on final landfill cover design by us for Weyerhaeuser Co
Performing CQA on HGCS rock on geotextile separator for new cell designed by us for Weyerhaeuser Co.
 
Design and CQA of floating cover system for leachate pond
CQA services for secondary diked containment of railroad fueling facility
Design & CQA for new cell construction showing installation of leachate sump
Design & CQA services for new Phase V landfill cell showing new pump station control panel
Design & CQA for new cell construction tying into existing cells at western Oregon regional landfill
Designer & consultant for several new landfill cells with terminations and tie-ins to new cells
Design & CQA services for temporary bridge crossing river for access to wetlands
CQA & design review for large double-lined production water evaporation ponds in central Wyoming
CQA & CM services for repair and construction of secondary containment around fuel tanks
Deer on final cover of landfill that was designed and construction-certified by us
 
Permitting and design of new double-lined steep slope landfill cell in western Oregon
Permitting and design of double-lined leachate pond and floating cover
Landfill operations consultation
Design of public drop-off retaining wall, roads, and drainage at landfill
Design consultant for unique coarse-rock final landfill cover at City of Willits, CA
Consultant for bioreactor landfill operations
Consultant for long term site development and planning at several regional landfills
Unique design and construction services for inflated lagoon cover
Geotechnical investigations and evaluations performed and managed by us at all our design sites
Permitting, design and construction services for numerous double lined ponds
 























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