Record Display for the EPA National Library Catalog
RECORD NUMBER: 541 OF 615
|OLS Field Name||OLS Field Data|
|Main Title||Superfund record of decision : Sylvester Site, NH : supplemental ROD /|
|CORP Author||Environmental Protection Agency, Washington, DC.; United States. Environmental Protection Agency.|
|Publisher||U.S. Environmental Protection Agency,|
|Subjects||Hazardous waste sites--New Hampshire. ; Sylvester site (N.H.)|
|Additional Subjects||Earth fills ; Industrial wastes ; Hazardous materials ; Waste disposal ; Site surveys ; Sylvester site ; Surface water ; Sites ; Licenses ; Public health ; Water pollution ; Air pollution ; New Hampshire ; Cost analysis ; Chemical compounds ; Solid waste disposal ; Substitutes ; Cost analysis ; Ground water ; Sludge disposal ; Water treatment ; Solid waste management ; Superfund program ; EPA region 2 ; Land reclamation ; Municipal wastes ; Environmental research ; Remedial actions ; Liquid waste disposal ; Nashua(New Hampshire) ; Volatile organic compounds ; Heavy metals ; Household wastes|
The Gilson Road hazardous waste dump site is located in the City of Nashua, New Hampshire. The 6-acre site has been used as a sand borrow pit for an undetermined number of years. Some time during the late 1960's the operator of the pit began an unapproved and illegal waste disposal operation. Household refuse, demolition materials, chemical sludges, and approximately 800,000 gallons of hazardous liquid chemicals were dumped at the site. The ground water, air and to a lesser extent surface water have been contaminated. The original ROD was signed in July 1982 approving the installation of a slurry wall and surface cap as the first operable unit. The ROD also approved ground water treatment as the second operable unit but deferred selection of the specific treatment process until the technical analysis and evaluation of the pilot plant studies were complete. The cost-effective ground water treatment system selected for this site includes: inorganic chemicals removal; volatile organic chemicals removal; concentrated organic chemicals removal; and biological treatment of the sidestream. Also a treatment rate of 300 gpm has been selected to reduce the operating time to approximately 2 years.
"Sept. 1983." "PB85-225514." "Office of Emergency and Remedial Response." "EPA/ROD/R01-83/007."