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This investigation is normally undertaken when a Phase I ESA determines a likelihood of site contamination. The most frequent substances tested are petroleum hydrocarbons, heavy metals, pesticides, solvents, asbestos and mold. Phase III Environmental Site Assessment is an investigation involving remediation of a site. Phase III investigations ...
The EPA has also used ERL and ERM values for sediment contamination studies. Assessment categories defining the condition of sampled sediments have been used by the EPA in the past. Categories have been characterized as “good” for zero ERL exceedances, “intermediate” if there are ERL exceedances but zero ERM exceedances, and “poor ...
The National Emission Standards for Hazardous Air Pollutants (NESHAP) are air pollution standards issued by the United States Environmental Protection Agency (EPA). The standards, authorized by the Clean Air Act, are for pollutants not covered by the National Ambient Air Quality Standards (NAAQS) that may cause an increase in fatalities or in serious, irreversible, or incapacitating illness.
Heavy metals is a controversial and ambiguous term [2] for metallic elements with relatively high densities, atomic weights, or atomic numbers.The criteria used, and whether metalloids are included, vary depending on the author and context and has been argued should not be used.
This is a list of Superfund sites in Massachusetts designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. . The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up hazardous material contamination
At Site B, waste materials were placed in barrels before discharge. Chemical wastes discharged at these sites reportedly had various concentrations of chlorinated hydrocarbons, calcium and sodium metals, formaldehyde, cyanide and other metals (i.e. antimony, mercury, arsenic, zinc, manganese, and iron).
According to public EPA documents, the agency will provide water systems in small and rural communities with an array of exemptions and time extensions to comply with the new standards that it ...
New Source Performance Standards (NSPS) are pollution control standards issued by the United States Environmental Protection Agency (EPA). The term is used in the Clean Air Act Extension of 1970 (CAA) to refer to air pollution emission standards, and in the Clean Water Act (CWA) referring to standards for water pollution discharges of industrial wastewater to surface waters.