Tracy Altrock packs MEK in Louisiana as part of a Hurricane Katrina relief team.

As part of a Hurricane Katrina relief team, Walsh staff member Kevin Troyer categorizing an unknown

We created Fire Risk/Hazard Mitigation Plans for two counties in Oregon.

Hydroseeding at the Burlington Mine Site -Jamestown, Colorado

Sampling being conducted at the Sheridan Brownfields Redevelopment Project, Denver

Jon Dauzvardis conducting a Habitat Assessment, Upper Clark Fork River CERCLA site, Montana

Phase I Site Assessment of Historical Mine Sites, Rico, Colorado

Old mill encountered during Phase I site assessment, Rico, Colorado

Ed Moritz evaluated a gas field in Afghanistan for USAID.

Walsh is working with the BLM to draft the Canyons of the Ancients National Monument Resource Manage

Fred Groth mounting Walsh's aerial camera system on a helicopter in Papua New Guinea.

Walsh employees Grant Gurneé and Julie Ash estimating stream capacity and flow rates

Walsh helped an oil company with mud disposal issues in Pakistan.

Walsh employee Fred Groth sampling a water well in Bangladesh.

Walsh has more than 50 staff at company headquarters in Boulder, Colorado.

Mark Thurber and Peter Ayarza conducting a baseline survey in the Ecuadorian Amazon.

Walsh conducted an asbestos abatement project at the Jorge Chavez International Airport, Lima, Peru.

Walsh crew cleaning up Boulder Creek on Earth Day

Walsh is helping segregate household hazardous waste in areas impacted by Hurricane Katrina.

Walsh industrial hygienist Lindsay Breyer monitoring pipeline construction workers.

Rob Prentice (left) worked on the Natural Resource Damage Assessment in Saudi Arabia

Ed Moritz in Nigeria, with Nigerian Coal Company official

Drilling at Saginaw Hill Mining District, Arizona.

Walsh ecologists have special expertise in avian surveys.

Dr. Meaney creates a swift fox bait trap

Measuring stream parameters in Chaffee County, CO

Community Wildfire Protection Plans - Lincoln County, NM