Public utility provider(s) in Northern Illinois rely on A3 Environmental Consultants (A3E) to track waste streams, both hazardous and non-hazardous in their systems. A3E performs sample collection and analytical data reviews to determine the correct method for disposal of the material, which includes incineration, grouting in place, or final disposal at a Subtitle D landfill. The tracking, documenting, and manifesting activities are required by the USEPA and other local regulatory agencies.
Hydrovac Excavation Spoil Management
When working around underground utilities it’s important not to damage the infrastructure while trying to open a cavity large enough to perform the necessary maintenance. A method called “hydrovac excavation” is performed where high pressure water is used to expose the utilities so hand digging or machines can utilized to safely perform excavation in the vicinity of the utilities. Hydrovac spoils or soil mixed with water is created from the hydro-excavation activities. Hydrovac spoils are considered special waste and have to be solidified (dried out) prior to disposal or the wet soils could cause slope instability and the landfill. A3E manages the hydrovac spoils and directs them to the appropriate facilities for solidification.
A3 Environmental Consultants collects soil samples in the area of excavation to create a soil profile in advance of excavating to determine the method and location for disposal. A3E prepares and submits the sample profile to the Subtitle-D landfill or solidification facility for approval. Upon receiving the approval, A3E will manifest the soil to ensure the soils are properly disposed. Finally, A3E maintains all of the data in perpetuity. Having the soil profile stored for the future drives costs down when additional work may be performed at the same utility location.
Hydrovac Spoils Management
Client:
Public Utility Provider(s)
Location:
Services:
General Consulting
Hydrovac Excavation Spoil Management
Waste Characterization
Key Staff:
Dave McCoy – Professional Geologist, Final Review
Taylor Closen – Project Management
Jessica Vacala – Project Management
Duration:
2020 – Present
Value:
Estimated $200,000
