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William Stansfield

William Stansfield
Scientist

William Stansfield

Scientist

Mr. William Stansfield is a hydrogeologist with experience in both the private and public sectors and broad interests related to groundwater resource management and remediation. He has experience with numerical and analytical groundwater modeling; environmental site assessment; construction oversight; technical reporting; monitoring well instillation; and sediment, soil, and groundwater sampling.

Sediment Sampling

Centredale Manor Superfund Site, North Providence, Rhode Island Collected sediment samples for characterization of dioxin-contaminated sediments using a variety of methods, including hand auger, piston sediment corer, and gas-powered hand probe. Samples were collected from wetlands, floodplains, and active stream channels associated with a Superfund site in Rhode Island.

Groundwater Sampling

Groundwater Sampling, Connecticut Sampled groundwater for various environmental contaminants from a variety of sites across Connecticut using peristaltic pumps and bladder pumps.

Data Analysis

Landfill Closures, Connecticut Analyzed data related to long-term environmental monitoring programs associated with several Connecticut landfill closures. Updated quarterly and biannual reports for regulatory agencies with analysis and discussion of leachate chemistry in groundwater.

GIS Analysis

Bureau of Land Management, Oregon Digitized streams and other hydrologic features using field data and remote sensing data in ArcGIS Pro.

Groundwater Modeling

Colorado State University Masters Research, Southern Peru Applied numerical modeling techniques to assess the impact of mining-related groundwater extraction on a high-altitude headwater basin in the Peruvian Andes.

Site Assessment

Phase I Environmental Site Assessments, Multiple Sites, Connecticut Performed multiple Phase I environmental site assessments on a variety of sites, including former manufacturing facilities, agricultural areas, dry cleaning facilities, and service stations in Connecticut.

Remediation Construction Oversight

Remediation Construction, Multiple Sites, New England Performed construction oversight for the excavation of contaminated material and instillation of engineered controls, including impervious asphalt caps, sediment isolation sheet piles, retaining walls, and geotextiles, for a variety of sites in New England.

Hydrogeology

Colorado State University Masters Research, Southern Peru Applied numerical modeling techniques to assess the impact of mining-related groundwater extraction on a high-altitude headwater basin in the Peruvian Andes.

Environmental Monitoring

Landfill Closures, Connecticut Analyzed data related to long-term environmental monitoring programs associated with several Connecticut landfill closures. Updated quarterly and biannual reports for regulatory agencies with analysis and discussion of leachate chemistry in groundwater.
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