Evaluation of groundwater flow regime at a landfill with liner system

Abstract

The High Acres landfill is a 166‐acre (67‐ha) sanitary waste disposal site located southeast of Rochester, New York. The site consists of an existing 92‐acre (37‐ha) unlined landfill and a proposed 74‐acre (30‐ha) landfill expansion. To contain the leachate that may be produced at the new site, the construction of a liner system is proposed. According to regulations, the base of the landfill liner system is required to be above the seasonal high water‐table at the site. A multilayer aquifer model was used, therefore, (1) to simulate the mechanism by which groundwater moves through the High Acres site; and (2) to evaluate the average and seasonal high water‐table conditions at the site with and without the liner system. Based on these simulations, critical design aspects of the landfill liner system and its effect on the local groundwater flow regime is evaluated throughout the entire site.

Notes

Currently at: Agency forToxic Substances and Disease Registry (ATSDR), 1600 Clifton Rd., MS E32, Atlanta, GA 30333.

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