Streamgaging Program / Agricultural Use Protection Monitoring – Powder River Basin, Wyoming

Beginning in 2002, Lowham Walsh designed, installed, and continues monitoring an expansive streamgaging network in several watersheds of the Powder River Basin. We gather discharge data, collect water quality samples for lab analysis, and generate extensive flow report materials and hydrograph summaries—at compliance points established by the Wyoming Department of Environmental Quality. The streamgaging program and its central objective were reallocated in 2013 to serve industry reporting needs for multiple gas clients—moving forward in innovation and implementation for necessary data collection to meet state regulation requirements.


Upstream Oil and Gas: Air Quality Permitting, Compliance, Emission Inventories – Washakie Basin, Wyoming 

Lowham Walsh provided air quality consulting services in Wyoming’s Washakie Basin for Devon Energy Production Company, L.P., obtaining multiple air quality permits for production sites and facilities, micro-turbines, and compressor engines. The work included evaluation of control strategies, development of compliance plans, and a permit gap analysis for Devon’s Washakie Basin assets. Additional services included the preparation of emission inventories for over 600 individual oil and gas production sites for the Wyoming Department of Environmental Quality’s required triennial emission inventory and assistance with offset emission requirements in the Upper Green River Basin ozone non-attainment area. 


Oil-Shale Development Permit Coordination – Uintah County, Utah

In June 2013, Lowham Walsh was contracted by a private oil shale company to assist with project management and permitting for an open-pit oil shale mine and processing facility in Uintah County, Utah. Permitting for oil shale development is complete and the next phase of the project is temporarily on hold due to low energy prices.  Project work has included extensive scientific data collection, analysis, and reporting: biological and cultural resource studies, surface water resource reports, borehole installation and well monitoring, as well as seep, spring, and soil studies.  


Antelope Valley Mine Reclamation - Gillette, Wyoming

Lowham Walsh provided the engineering design and project oversight for an abandoned coal mine reclamation in the Antelope Valley subdivision—south of Gillette, Wyoming. Hired by the Wyoming Department of Environmental Quality, our team managed the technical components of an environmentally responsible restoration, including the specialized feature of a two-tiered, mechanically stabilized, earthen retaining wall. Construction was completed in 2015.  This project was received an honorable mention for the Presidential Project Award at the 2015 Wyoming Engineering Society's annual convention.