Dunkirk St & Sullivan Rd, Queens, NY, 11435

Saint Albans

VCP Mercury brownfield

Site Description[1] 
This site is an electrical substation for the Long Island Railroad. From the early 1930s until 1951, the LIRR constructed electric substations the utilized mercury rectifiers. The last of these mercury rectifiers was removed and replaced with non-mercury solid state components in the early 1980s. However, due to uncertainly regarding the operation and maintanece practices used for the mercury rectifiers, LIRR conducted a site assessment of the 20 stations. Mercury contamination was found in and around this substation during the 2000 site investigation. A full scale Site Investigation (SI) was completed in late 2005. SI Report indicated only limited contamination at this site.

Site Environmental Assessment
Mercury contamination in soils is present at the substation.

Site Health Assessment
The site is part of the Long Island Railroad (LIRR), it is currently being used to convert electricity for the West Hempstead line. Investigations have identified mercury contamination in the surface and subsurface soils due to unknown non-specific releases from the mercury containing rectifiers. Potential exposure to mercury impacted surface soils has been minimized by the fencing that is in place around the substation and site access is restricted to LIRR personnel only. Exposure to subsurface contamination is unlikely since it lies at depth. Additional investigations will be performed to determine the horizontal and verical extent of mercury contamination at the site.

Contaminants of Concern
Type of Waste Quantity

admin, Debra Hall



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