HAZARDOUS WASTE AT BOUNDARY ROAD SUPERFUND IN MENOMONEE FALLS
These are the hazardous chemicals that have been detected. This Superfund site is currently “capped”. Caps are often part of cleanups at Superfund sites such as landfills where wastes remain in place. Caps prevent exposure to buried wastes, help with stormwater management and prevent water infiltration.
CONTAMINANTS FOUND IN THE GROUNDWATER
Information from the last time the site was inspected (2017), as provided by EPA: Click here
Volatile Organic Compounds (VOCs)
- Ketones: Compounds found in resins, paint removers, cement adhesives, and cleaning fluids (e.g., acetone, 2-butanone, 2-hexanone, 4-methyl-2-pentanone, isophorone).
- Benzene, ethylbenzene, toluene, xylene (BETX) compounds: Partially water-soluble products from gasoline, oil, and other hydrocarbon products.
- Chlorinated ethenes: Chlorinated ethenes, including tetrachloroethene, trichloroethene, dichloroethene, and vinyl chloride. These compounds are common industrial compounds.
- Chlorinated ethanes: Chlorinated ethanes, including 1,1,2,2-tetrachloroethane, 1,1,2-trichloroethane, 1,1,1-trichloroethane, 1,2-dichloroethane, 1,1-dichloroethane, and chloroethane. These compounds are common industrial solvents and represent a potential degradation sequence.
Semi-VOCs
- Phenols- A group of chemicals ofsimilar composition used in adhesives, epoxies, plastics, and a variety of synthetic fibers and dyes. Compounds in the group include chlorinated, methylated, and nitrified phenols. Benzoic acid, a carbolic acid, is also included with the phenols because it may be a degradation product of these compounds.
- Chlorinated benzenes: Used as solvents and reagents in a variety of chemical manufacturing processes and materials, including certain pesticides (e.g., dichloro-diphenyl-trichloroethane, commonly known as DDT). Compounds in this group include chlorobenzene, hexachlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene, 1,2-dichlorobenzene, and 1,2,4-trichlorobenzene.
- Polycyclic aromatic hydrocarbons (PAHs). A group of compounds associated with and derived from coal and oil (e.g., naphthalene, pyrene, etc.). They are also by-products of the incomplete combustion of carbonaceous materials.
- Phthalates: Compounds associated with plastics and plastic-making processes.
Pesticides/Polychlorinated Biphenyls (PCBs)
- Pesticides: A group of chlorinated compounds used for insect control (e.g. Aldrin, Endrin, etc). The use of these pesticides has for the most part been discontinued.
- PCBs: Mixtures of chlorinated biphenyls identified as Aroclors formerly used extensively in industrial applications.
CONTAMINANTS FOUND IN THE LEACHATE
Click here for what leachate is from ScienceDirect.
BETX Compounds (benzene, ethylbenzene, toluene, xylene)
- chlorinated benzenes
- phenols and PAHs
- chlorinated ethenes
- chlorinated ethanes
- total ketones
- tetrahydrofuran
- styrene
- methylene chloride
- nitrobenzene
- N-nitrosodiphenylamine
- carbazole
- dibenzofuran
CONTAMINANTS FOUND IN SURFACE SOILS
- PAHs
- pesticides
- xylenes
- bis(2-ethylhexyl)phthalate
- PCBs, specifically Aroclor 1260 and 1254
EPA SUMMARIZES CONCERNS ABOUT EXPOSURE TO THE CHEMICALS IT FOUND
Groundwater: It was assumed that people could ingest, then and in the future, contaminated groundwater from on-site or off-site monitoring wells, or inhale contaminants released from using water (such as while showering) from on-site or off-site monitoring wells.
Surface soils: It was assumed that, in the future, on-site residents could ingest or come into dermal contact with contaminated surface soils.
Sediment: It was assumed that, in the future, on-site residents could ingest contaminated sediment.
Surface water: It was assumed that, then and in the future, sensitive aquatic organisms may be impacted from chemicals detected in surface water.
