Services
Passive Treatment System Design
Hedin Environmental designs and oversees the construction of new passive treatment systems and rehabilitation of underperforming systems. As part of the design process, we assist clients with water sampling, permitting, project bidding, construction oversight, and reporting.
Treatment System Operation & Maintenance
Hedin Environmental provides services including solids management, sludge pumping, limestone cleaning, organic substrate replacement, and water sampling.
Evaluation of Existing Treatment Systems
Hedin Environmental can diagnose problems with existing treatment systems and prepare rehabilitation plans for everything from routine vegetation control to full redesign.
Pollution Characterization & Watershed Restoration Planning
Hedin Environmental develops watershed restoration plans which identify impairment sources, quantify pollution loading, and identify treatment strategies that will restore the watershed.
Reclamation
Hedin Environmental designs and oversees the construction of reclamation projects to physically and chemically stabilize mine wastes.
Research & Development
Hedin Environmental directs and participates in research to develop new treatment technologies and beneficial uses of treatment byproducts. Research projects include:
Saleable iron oxide product for pigment, soil restoration, and phosphorus immobilization
Drainable limestone bed and carbonation treatment technologies
Limestone cleaning best management practice
Critical metal recovery from mine drainage