Deriving a practical and cost-effective soil remedial goal for carcinogenic PAHs
- Chester Environmental, Pittsburgh, PA (United States)
Soil and groundwater at a former wood-treating facility were impacted with creosote constituents as a result of plant operations. Although the risk assessment demonstrated that there was no significant adverse impact to human health, the regulatory agency requested that soil remediation would still be required to minimize potential migration and impact to an adjacent creek. A soil remedial goal for carcinogenic polycyclic aromatic hydrocarbons (cPAHs) was established that would be protective of aquatic life in the creek, minimize the extent of remediation, and ultimately reduce remedial costs. A conceptual site model was developed to illustrate the transport relationships that exist among the media at the site. The model indicates that a surface water criterion for benzo[a]pyrene, a creosote constituent that would be representative of all cPAHs, would be the remedial goal to attain in the adjacent creek. Conservatively low volumetric flow rates were derived for the creek and groundwater flow into the creek. These volumetric flow rates were used to determine via mass balance what groundwater concentration would achieve the surface water criterion following dilution. Finally, US EPA`s Organic Leachate Model was employed to arrive at a soil concentration that would meet the groundwater attainment goal.
- OSTI ID:
- 69781
- Report Number(s):
- CONF-941189-; ISBN 1-56590-016-2; TRN: IM9529%%169
- Resource Relation:
- Conference: SUPERFUND XV: 15th environmental conference and exhibition for the hazardous materials/hazardous waste management industry, Washington, DC (United States), 29 Nov - 1 Dec 1994; Other Information: PBD: 1994; Related Information: Is Part Of Superfund XV conference proceedings. Volume 2; PB: 877 p.
- Country of Publication:
- United States
- Language:
- English
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