Andrew B. Bittner, M.Eng., PE
Principal
he/him
Mr. Bittner is a licensed environmental engineer with over 28 years of experience specializing in the fate and transport of contaminants in porous and fractured media, the migration of coal combustion products in groundwater and surface water, groundwater and surface water modeling, and groundwater corrective actions. Mr. Bittner has applied these skills for a wide range of projects, including at Superfund sites, landfills and surface impoundments, manufacturing facilities, and dry cleaning sites. Mr. Bittner has provided technical support related to the fate and transport of constituents in groundwater and surface water, both in consulting and testifying roles. Additionally, Mr. Bittner has extensive international experience developing risk-based remedial strategies, designing remedial investigations, delineating and characterizing the distribution of environmental pollutants, and overseeing remedial operations.
Metals Fate and Transport Modeling: Prepared expert report and testified both in deposition and at trial related to the fate and transport of metal constituents, such as nickel, aluminum, and arsenic, at 26 mining sites located around the world, including Canada, Wales, Japan, and Indonesia.
Metals Fate and Transport Modeling: Prepared expert report and testified in deposition related to the fate and transport of metal constituents in groundwater, including barium, boron, and arsenic, from multiple coal combustion residual surface impoundments.
Arsenic Fate and Transport Modeling: Modeled the fate and transport of arsenic and other coal ash-related constituents in groundwater and surface water downgradient of a large Midwestern coal ash surface impoundment located in a karst environment. Model simulations compared potential impacts to groundwater and surface water resulting from potential surface impoundment closure scenarios.
Surface Water Fate and Transport Modeling: Prepared expert report on human health and ecological risks due to a potential spill of barged coal combustion byproducts (CCBs) on a large midwestern river. Modeled the fate and transport of key CCB constituents, including arsenic, in surface water for a range of spill scenarios and river flow conditions. Estimated potential downstream concentrations at drinking water intake locations.
Groundwater and Solute Transport Modeling: For a PRP group, developed a 3-D numerical groundwater and solute transport model for PCE at a Superfund site in New Hampshire. Calibrated the model using approximately 10 years of data with review and oversight by US EPA and USGS. Designed an optimization algorithm to develop optimal groundwater pump-and-treat system.
Coal Ash Decision Framework: Developed decision framework that aids utilities in selecting coal ash surface impoundment closure plans. Framework considers impacts to groundwater, surface water, and air, as well as risks to workers and consumption of national resources.
Bittner, A; Zhang, Q. 2024. “Evaluating Surface Impoundment Closure Alternatives Using Relative Impact Assessment – Two Case Study Examples.” Presented at the World of Coal Ash (WOCA) Conference, Grand Rapids, MI, May 14.
Bittner, AB; Kondziolka, J. 2022. “Alternative Liner Performance Demonstrations – A Science- Based Approach to Inform Policy Development.” Presented at the World of Coal Ash (WOCA) Conference, Covington, KY, May 18.
Lewis, A; Bittner, A; Radloff, K; Hensel, B. 2017. “Storage of coal combustion products in the United States: Perspectives on potential human health and environmental risks.” In Coal Combustion Products (CCP’s): Characteristics, Utilization and Beneficiation. (Eds.: Robl, T; Oberlink, A; Jones, R), Woodhead Publishing, Duxford, UK, p481-507.