Human Health Risk Assessments are often an important part of an environmental site investigation or remediation project. When residual contaminants are present in soil, groundwater, surface water, sediment, or soil vapor, a site-specific Risk Assessment can often be used to quantify acceptable risk to occupants of a property and eliminate costly remedies that may not be necessary. On the other hand, when exposure risks are truly unacceptable, Human Health Risk Assessments can be used in focusing remediation strategies to be more effective and protective.
Likewise, Ecological Risk Assessments are often an important tool to evaluate potential impacts to streams, wetlands, or related ecosystems, which can be caused by agricultural or industrial runoff, wastewater discharges, or diffuse groundwater flow.
Once environmental contaminants have been identified and characterized at a site, it is important to consider the use of a Risk Assessment early in the process of evaluating alternatives, as it may reduce or eliminate the need for costly remediation, capping, or other engineering controls.
Brickhouse Environmental’s scientists have extensive experience conducting Risk Assessments within the Federal (CERCLA/RCRA) Regulatory Framework, as well as within State Voluntary Cleanup Programs. We have combined Risk Assessments, groundwater modeling, statistical analysis, and soil vapor migration studies for successful project completion at varied types of sites, with varied contaminants, varied receptors, and varied exposure scenarios, including:
- Chlorinated volatile organic compounds (CVOCs) in groundwater, mixed industrial/residential neighborhood, vapor intrusion – Conshohocken, PA
- Metals in soils, high school grass courtyard, students – Philadelphia, PA
- Historic urban fill in soil, townhome communities – Philadelphia, PA
- Metals, VOCs, and SVOCs in former quarry soil, groundwater, surface water and sediment, mixed residential, recreational, and trespasser – Delaware County, PA
- Metals and PAHs in soil and soil vapor, construction worker/future residential – Delaware County, PA