The methods used to manage groundwater produced through coalbed natural gas operations (CBNG) are important issues under debate by the public, Federal and State agencies, special interest groups, and energy companies. CBNG water is unaltered groundwater that is typically characterized as sodium bicarbonate enriched water. Six field sites in the Powder River Basin of northeastern Wyoming have been irrigated with CBNG produced water for five years. Each of the six field sites are closely managed and monitored as part of on-going managed irrigation projects; each site has been sampled at least bi-annually since the initiation of irrigation. Pre-irrigation soil profile descriptions will be compared to post-irrigation soil profile descriptions to assess changes in soil morphology. The assessment focuses on physical and chemical characteristics of individual soil horizons, as well as the entire soil profile. Results indicate that after five years of irrigation with CBNG produced water, soil infiltration rates have not changed significantly compared to adjacent non-irrigated areas. Soil electrical conductivity (EC), exchangeable sodium percentage (ESP), and sodium adsorption ratio (SAR) have increased significantly since the initiation of CBNG produced water irrigation due to the application of both CBNG waters and soil applied amendments; soil pH has not significantly increased compared to adjacent non-irrigated areas. Although soil EC, ESP, and SAR have increased, management strategies have prevented the formation of sodic soil conditions, as evidenced by well-aggregated soil structure and stable soil infiltration rates. Agronomic leaching has maintained root zone salinity conditions suitable for moderately tolerant plant species, which are native to northeastern Wyoming.