Acid Mine Drainage

Acid Mine Drainage:

Saint Vincent College Activated Iron Solids/SBR
Demonstration Project

Saint Vincent College

A demonstration of a new technology was undertaken by St. Vincent College using funds obtained through a “Growing Greener” grant. The technology demonstrated was the innovative activated iron solids/sequencing batch reactor (AIS/SBR) treatment process (patent pending) developed by Jon Dietz, Ph.D of Dietz-Gourley Consulting, LLC.

Passive Treatment of the Site 15 Acid Mine Drainage Discharge

The Shamokin Creek Restoration Alliance (SCRA), in partnership with the Northumberland County Conservation District (NCCD), initiated a project to treat the Corbin Mine Tunnel AMD discharge (Site 15) to Shamokin Creek. Dietz-Gourley Consulting along with the EADS Group of Clarion developed construction plans and documents, coordinated the relocation of onsite utilities, resolved PENNDOT right-of-way issues and reviewed and recommended a contractor for the construction phase of the project. The project is scheduled to start construction in late 2005. Shamokin Site 15

Dietz-Gourley Consulting, LLC assessed and characterized the current conditions of the Mill Creek Coalition's existing passive treatment systems in the watershed.

The technologies that have been utilized include ALD, Aerobic Ponds, Aerobic Wetlands, SAPS and limestone beds. Each system type was evaluated to determine current conditions and performance, operating issues, and expected life. Criteria will be developed for each passive treatment type as triggers for required maintenance activities and ultimate system replacement. Mill Creek OM&R Elk County Fisherman Watershed Twomile Run AVFW Design

Dietz-Gourley Consulting, LLC assisted the Elk County Fishermen Watershed Group with the site investigation and evaluation, preliminary design and cost estimates for two treatment system locations.

Before completing the final design and permitting for the two treatment systems under Phase I, Dietz-Gourley Consulting assisted the watershed group with the preparation of a “Growing Greener” grant application for Phase II of the project. Phase II involved the construction of the passive treatment systems, performance monitoring, and development of an O&M plan Elk County Fishermen - Twomile Run Development of Abatement Approaches for AMD Emanating from the Potato Ridge Mine

Dietz-Gourley Consulting, LLC assisted the EADS Group in a project involving reclamation and treatment of numerous acid mine drainage (AMD) emanating from two mines, Smith & Potato Ridge Mines, as well as abandoned mined land (AML) in the area.

The various AMD discharge into Laurel Run, a cold water fishery containing wild brook trout, and cause water quality impacts from AML AMD and inadequately treated water from the Smith Mine (currently treated with various passive treatment approaches). Potato Ridge Solomon Creek AMD Feasibility and Bench-scale Study

Dietz-Gourley Consulting, LLC is assisting Borton-Lawson in a feasibility study to identify the most cost effective and efficient method for treating the Solomon Creek AMD.

Solomon Creek

The Solomon Creek AMD discharges consists of the South W-B Boreholes and Buttonwood Tunnel discharges with combined flows exceeding 50 million gallons per day (MGD) and an average ferrous iron of 35 mg/L.

 

Acidic Water Impact Mitigation:

Restoration of Atomospheric Related Water Quality Impacts in Schrader Creek

Shrader Creek

Dietz-Gourley Consulting, LLC developed designs for four (4) innovative combination aerobic limestone basins (ALB)/ anaerobic vertical flow wetlands (AVFW) located in headwater tributary locations. The technologies have been used independently in AMD treatment, but are relatively new to this field of restoration (an approach developed by Jon Dietz, Ph.D.). The combination systems will employ hydraulic designs that will adjust flow (and alkalinity output) with stream flow to restore base and episodic flow water quality. Funding for this design project is from a “Growing Greener” grant cooperatively prepared and submitted by the Schrader Creek Watershed Association & Dietz-Gourley Consulting. Little Schrader Creek

Passive Treatment of the Site 15 Acid Mine Drainage Discharge

The Shamokin Creek Restoration Alliance (SCRA), in partnership with the Northumberland County Conservation District (NCCD), initiated a project to treat the Corbin Mine Tunnel AMD discharge (Site 15) to Shamokin Creek. Dietz-Gourley Consulting along with the EADS Group of Clarion developed construction plans and documents, coordinated the relocation of onsite utilities, resolved PENNDOT right-of-way issues and reviewed and recommended a contractor for the construction phase of the project. The project is scheduled to start construction in late 2005. Shamokin Site 15