WWGeosciences offers groundwater modeling services for remediation and forensic purposes. For remediation, we support site cleanup and forecast the results of future courses of action. For forensic purposes we ascertain the “who, what, where, when & why” of groundwater contamination.
Large groundwater modeling projects frequently require detailed evaluation of complex industrial sites. WWGeosciences can interact with the site investigators to obtain the hydrogeologic information necessary to generate flow and transport models. Turnaround on preliminary modeling information can be rapid enough to advise clients during an investigation already in progress.
WWGeosciences can also provide services for clients with smaller sites. We have generated and used groundwater models to support remedial decision-making for sites such as gas stations and can deal with data gaps inherent in a limited investigation.
Project Experience:
- Performed numerical modeling of groundwater flow to determine extraction well location for water supply protection.
- Constructed and executed numerical model of buried valley aquifer in Northeast Ohio to assess long term sustainability of proposed municipal water well development.
- Developed simplified screening methods for evaluating the migration of groundwater contaminants.
- Performed numerical modeling of groundwater contaminant transport to locate probable sources of groundwater impacts.
- Developed in-house software for graphical evaluations of water chemistry.
- Developed simplified software for performing contaminant-leaching calculations.
- Performed analytical modeling of partitioning, fate, and transport of organic contaminants between soil, air, and groundwater.
- Performed numerical modeling of groundwater flow and contaminant transport to determine possible extent of contamination, evaluate remedial alternatives, or substantiate “no further action” determinations.
- Performed geochemical modeling of surface water and wastewater to support design of a constructed wetland treatment system for industrial manufacturer.
- Performed numerical modeling of contaminant transport in soils to evaluate the threat of future groundwater contamination from present soil contamination.
- Used numerical model to predict groundwater seepage into proposed pit to be excavated for the installation of industrial machinery. Successfully predicted both total inflow rates and proportion from pre-existing contaminant plume.
- Performed document review and unsaturated zone contaminant transport modeling and travel time evaluation for compounds released from manufactured gas plant sites. Services were provided for a law firm representing a gas company engaged in insurance claim litigation regarding several sites.
Case Studies:
- Numerical modeling of groundwater flow to determine extraction well location for water supply protection. Services were performed for industrial manufacturer in proximity to public water supply wellfield.
- Numerical modeling of groundwater flow and contaminant transport to determine extent of future contamination in buried valley aquifer. Services performed for industrial manufacture to support enhanced bioremediation plan. Plan received agency approval and is being implemented, current monitoring results have been consistent with model.
- Numerical modeling of groundwater flow and contaminant transport to predict seepage of contaminated groundwater into proposed excavation inside industrial facility. Services were performed for metals manufacturer planning factory expansion. Excavation was performed and observed water infiltration rates agreed with prediction.
- Numerical Modeling of groundwater flow and contaminant transport to evaluate future location and intensity of contaminant plumes migrating from UST sites. Services were performed for responsible parties to support remedial design or to demonstrate attainment of statewide health standards.
- Performed numerical modeling of groundwater contaminant transport to locate probable sources of groundwater impacts. Services were performed for industrial manufacturer in Piedmont area, involved in dispute over fair allocation of response costs.
- Performed numerical modeling of groundwater contaminant transport to locate probable contaminant travel time from sources of groundwater impacts to public water supply wells. Services were provided to law firm representing several indusÂtrial manufacturers engaged in insurance claim litigation regarding numerous sites.
- Performed unsaturated zone modeling at numerous UST sites to determine potential impact to groundwater. Services performed for responsible parties to determine whether groundwater remediation was needed.