The Michigan Hazardous Waste Management Act, also known as Part 111 of the Natural Resources and Environmental Protection Act (NREPA), establishes a comprehensive framework for managing hazardous waste within the state. A critical aspect of this act concerns the generator’s responsibility for identifying and managing hazardous waste. Under this act, a generator is defined as any person who produces hazardous waste or whose act, process, or facility initially causes any hazardous waste to become subject to regulation. This definition is crucial because it determines who is subject to the stringent requirements for waste management, including proper storage, labeling, manifesting, and disposal. The act further categorizes generators based on the quantity of hazardous waste they produce within a calendar month, with different regulatory burdens applied to very small quantity generators, small quantity generators, and large quantity generators. The core principle is that the entity that creates or initially causes the waste to be regulated bears the primary responsibility for its safe handling and ultimate disposition, aligning with the cradle-to-grave management philosophy inherent in hazardous waste law. This responsibility extends to ensuring that waste is characterized accurately to determine if it meets the criteria for hazardous waste under Michigan regulations, which are largely promulgated by the Michigan Department of Environment, Great Lakes, and Energy (EGLE).

The Michigan Hazardous Waste Management Act, often referred to as Part 111 of the Natural Resources and Environmental Protection Act (NREPA), establishes a comprehensive framework for the generation, transportation, treatment, storage, and disposal of hazardous waste within the state. A key aspect of this act is the definition of what constitutes hazardous waste. This definition is critical for determining regulatory applicability. Under Michigan law, hazardous waste is defined by two primary mechanisms: characteristic hazardous waste and listed hazardous waste. Characteristic hazardous waste exhibits one or more of the following properties: ignitability, corrosivity, reactivity, or toxicity. Toxicity is determined through the Toxicity Characteristic Leaching Procedure (TCLP), a standardized test. Listed hazardous wastes are those specifically identified by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) or the U.S. Environmental Protection Agency (EPA) as hazardous, often due to their origin from specific industrial processes or their inherent hazardous properties, regardless of whether they exhibit a characteristic. For instance, wastes from the production of certain pesticides or spent solvents from degreasing operations might be listed. The determination of whether a waste is hazardous under Michigan law hinges on its classification as either characteristic or listed. A generator must evaluate their waste stream against these criteria. If a waste exhibits a characteristic or is on a list, it is regulated as hazardous waste. The act also differentiates between hazardous waste and regulated medical waste, which has its own distinct set of management requirements. Understanding these distinctions is fundamental for compliance.

The Michigan Hazardous Waste Management Act, also known as Part 111 of the Natural Resources and Environmental Protection Act (NREPA), establishes a comprehensive framework for the management of hazardous waste within the state. A critical aspect of this act is the definition and regulation of hazardous waste itself. The Act, mirroring federal regulations under the Resource Conservation and Recovery Act (RCRA), defines hazardous waste through specific characteristics and by listing certain wastes. Characteristic wastes are those that exhibit one or more of the following properties: ignitability, corrosivity, reactivity, or toxicity. Listed wastes are those specifically identified by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) as hazardous, typically due to their origin or specific constituents. For a waste generated in Michigan to be regulated as hazardous under Part 111, it must meet either the characteristic criteria or be on a specific list. The Act mandates stringent requirements for generators, transporters, and treatment, storage, and disposal facilities (TSDFs) handling these wastes, including manifesting, record-keeping, and reporting. The intent is to protect public health and the environment from the adverse effects of hazardous waste. The question probes the fundamental basis for a waste to be classified as hazardous under Michigan law, which hinges on its properties or its inclusion on a designated list.

The Michigan Hazardous Waste Management Act, specifically Part 111 of the Natural Resources and Environmental Protection Act (NREPA), establishes a comprehensive framework for the generation, transportation, treatment, storage, and disposal of hazardous waste within the state. A critical aspect of this framework is the definition of hazardous waste itself, which is primarily determined by the characteristics outlined in the administrative rules promulgated under the Act, specifically the Michigan Administrative Code (MAC) R 299.9201 through R 299.9205. These rules detail the four hazardous characteristics: ignitability, corrosivity, reactivity, and toxicity. For a waste to be classified as hazardous under Michigan law, it must either be listed by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) or exhibit one or more of these characteristic properties. The characteristic of toxicity is often assessed through a specific testing methodology, the Toxicity Characteristic Leaching Procedure (TCLP), which simulates leaching in a landfill. If the leachate from a waste sample exceeds regulatory thresholds for certain contaminants, the waste is deemed toxic and thus hazardous. Therefore, understanding these characteristic properties and the methods used to determine them is fundamental to classifying waste correctly under Michigan’s regulatory scheme. The question probes the direct statutory basis for defining hazardous waste characteristics in Michigan, which are detailed within the administrative rules.

The Michigan Natural Resources and Environmental Protection Act (NREPA), specifically Part 111, governs hazardous waste management. Under this act, a generator is classified based on the amount of hazardous waste produced per month. Small Quantity Generators (SQGs) are defined as those who generate between 100 and 1,000 kilograms of hazardous waste per calendar month. Large Quantity Generators (LQGs) are those who generate 1,000 kilograms or more of hazardous waste per calendar month. Very Small Quantity Generators (VSQGs) generate 100 kilograms or less of hazardous waste per calendar month. The question asks about a facility in Michigan that produces 550 kilograms of hazardous waste in a calendar month. This amount falls within the 100 to 1,000 kilogram range, classifying the facility as a Small Quantity Generator under Michigan’s hazardous waste regulations. This classification dictates specific requirements for storage, manifesting, record-keeping, and reporting, which are less stringent than those for LQGs but more comprehensive than for VSQGs. Understanding these generator categories is fundamental to compliance with Part 111 of NREPA and federal Resource Conservation and Recovery Act (RCRA) regulations as implemented in Michigan.

The Michigan Hazardous Waste Management Act, specifically Part 111 of the Natural Resources and Environmental Protection Act (NREPA), establishes a comprehensive framework for managing hazardous waste. A critical aspect of this framework is the definition of a “generator” and the associated responsibilities. A generator is defined as any person whose act or process produces hazardous waste or whose act first causes a waste to become subject to regulation. This definition is crucial for determining who is subject to specific management standards. In Michigan, a facility that generates 1,000 kilograms or more of hazardous waste in a calendar month is classified as a large quantity generator. For smaller quantities, different regulations apply. The question revolves around identifying the generator status based on the quantity of hazardous waste produced. If a facility produces 1,200 kilograms of hazardous waste in a calendar month, it clearly exceeds the 1,000-kilogram threshold, thus classifying it as a large quantity generator under Michigan’s hazardous waste regulations. This classification dictates the stringency of storage, record-keeping, and reporting requirements. Understanding these thresholds is fundamental to compliance with Michigan’s hazardous waste laws, which are largely modeled after the federal Resource Conservation and Recovery Act (RCRA) but with state-specific nuances.

The Michigan Hazardous Waste Management Act (Part 111 of the Natural Resources and Environmental Protection Act, PA 451 of 1994) defines hazardous waste based on its characteristics and listings. Characteristic hazardous wastes are those that exhibit ignitability, corrosivity, reactivity, or toxicity. Listed hazardous wastes are those specifically identified by the U.S. Environmental Protection Agency (EPA) or the state of Michigan as hazardous. The Act also establishes a cradle-to-grave management system for hazardous waste, requiring generators, transporters, and treatment, storage, and disposal facilities (TSDFs) to comply with specific regulations. Generators are categorized based on the amount of hazardous waste they produce per month. Small quantity generators (SQGs) produce between 100 and 1,000 kilograms of hazardous waste per month, while large quantity generators (LQGs) produce more than 1,000 kilograms per month. The regulations for SQGs are less stringent than for LQGs, reflecting the lower potential environmental risk. For instance, SQGs have different accumulation time limits and record-keeping requirements compared to LQGs. The Act mandates that hazardous waste be managed in a manner that protects public health and the environment. This includes proper identification, storage, transportation, treatment, and disposal. Facilities that treat, store, or dispose of hazardous waste must obtain a permit from the Michigan Department of Environment, Great Lakes, and Energy (EGLE). The concept of “derived-from” and “mixture” rules are also critical in determining if a waste is hazardous. If a non-hazardous waste is mixed with a listed hazardous waste, the entire mixture generally becomes hazardous. Similarly, if a hazardous waste is treated and the residue is still hazardous, it remains hazardous.

The Michigan Environmental Protection Act (Part 111 of the Natural Resources and Environmental Protection Act, NREPA) governs hazardous waste management in Michigan. A key aspect of this act is the definition of hazardous waste and the generator status requirements. Under Part 111, a generator is classified based on the amount of hazardous waste they produce per month. Very Small Quantity Generators (VSQGs) are those who produce 100 kilograms or less of hazardous waste per month, or 1 kilogram or less of acute hazardous waste per month. Small Quantity Generators (SQGs) produce between 100 and 1,000 kilograms of hazardous waste per month. Large Quantity Generators (LQGs) produce 1,000 kilograms or more of hazardous waste per month. The scenario describes a facility in Michigan that generates 120 kilograms of hazardous waste per month. This quantity falls within the range defined for Small Quantity Generators. Therefore, the facility’s generator status would be that of a Small Quantity Generator. Understanding these thresholds is crucial for compliance with the manifest system, storage limitations, and other regulatory requirements applicable to hazardous waste generators in Michigan. The distinction between generator categories dictates the specific management standards that a facility must adhere to, impacting everything from record-keeping to emergency preparedness.

The Michigan Natural Resources and Environmental Protection Act (NREPA), specifically Part 111, addresses hazardous waste management. This part establishes a comprehensive regulatory framework mirroring the federal Resource Conservation and Recovery Act (RCRA) but with state-specific provisions. Under Part 111, the Michigan Department of Environment, Great Lakes, and Energy (EGLE) is the primary agency responsible for implementing and enforcing hazardous waste regulations. Generators of hazardous waste are classified based on the quantity of hazardous waste they produce per month. Small Quantity Generators (SQGs) are those who generate between 100 and 1,000 kilograms of hazardous waste per month, or less than 1 kilogram of acutely hazardous waste per month. Large Quantity Generators (LQGs) generate 1,000 kilograms or more of hazardous waste per month, or more than 1 kilogram of acutely hazardous waste per month. Very Small Quantity Generators (VSQGs) generate 100 kilograms or less of hazardous waste per month. Each generator category has distinct requirements regarding storage, record-keeping, manifesting, and emergency preparedness. The classification is crucial as it dictates the stringency of compliance obligations. For instance, LQGs face the most rigorous requirements, including biennial reporting and more extensive personnel training. The question focuses on identifying the generator category based on a specific monthly waste generation threshold, which is a fundamental concept in determining regulatory obligations under Michigan’s hazardous waste program. The threshold of 500 kilograms of hazardous waste per month clearly places the facility into the Small Quantity Generator category, as it falls between the 100 kg and 1,000 kg thresholds for SQGs.

The Michigan Hazardous Waste Management Act, specifically Part 111 of the Natural Resources and Environmental Protection Act (NREPA), governs the management of hazardous waste within the state. A key aspect of this act is the definition and management of hazardous waste. While the federal Resource Conservation and Recovery Act (RCRA) provides a framework, Michigan’s regulations can be more stringent or specific. Under Part 111, waste is classified as hazardous if it is listed by the administrator or exhibits one or more characteristics of hazardous waste: ignitability, corrosivity, reactivity, or toxicity. The toxicity characteristic is determined by the Toxicity Characteristic Leaching Procedure (TCLP), a regulatory test used to determine if a waste exhibits the toxicity characteristic. If a waste fails the TCLP for certain constituents, it is considered hazardous. The question asks about a specific scenario involving a waste generated by a manufacturing process in Michigan that exhibits a characteristic of hazardous waste. The correct answer hinges on understanding that the characteristic of ignitability is defined by specific flashpoint criteria, as outlined in the regulations. A waste with a flashpoint below \(60^\circ C\) (\(140^\circ F\)) is considered ignitable. This specific criterion is a fundamental aspect of hazardous waste characterization under Michigan law, aligning with federal definitions but requiring precise knowledge of the regulatory threshold. The other options present plausible but incorrect characteristics or thresholds that do not accurately reflect the regulatory definition of ignitability for a liquid hazardous waste in Michigan.

The Michigan Hazardous Waste Management Act, Public Act 451 of 1994, as amended, and its associated administrative rules, specifically those found in the Michigan Administrative Code, govern the management of hazardous waste. When a generator of hazardous waste in Michigan ceases to operate or is acquired by another entity, specific closure and transfer of responsibility requirements must be met. If a facility that previously generated hazardous waste is now inactive and has not undergone formal closure in accordance with the regulations, the Michigan Department of Environment, Great Lakes, and Energy (EGLE) retains oversight. The state has a vested interest in ensuring that any residual hazardous waste or contamination is managed properly to protect public health and the environment. Therefore, EGLE can require the current owner or operator of the property, even if they did not generate the waste, to undertake corrective actions or closure activities if they are the current responsible party for the site where the waste is located. This principle is rooted in the concept of continuing responsibility for environmental protection and the state’s authority to ensure proper management of hazardous waste sites. The focus is on the location of the waste and the current control over that location, rather than solely on who generated it. This is to prevent orphaned sites and ensure that environmental liabilities are addressed.

The Michigan Hazardous Waste Management Act, specifically Part 111 of the Natural Resources and Environmental Protection Act (NREPA), governs the management of hazardous waste. A key aspect of this act is the definition of a hazardous waste generator. Generators are categorized based on the quantity of hazardous waste they produce per month. A small quantity generator (SQG) in Michigan is defined as a generator who produces more than 100 kilograms but less than 1,000 kilograms of hazardous waste in a calendar month, or who accumulates not more than 6,000 kilograms of hazardous waste at any one time. Conversely, a very small quantity generator (VSQG) produces 100 kilograms or less of hazardous waste per month, or accumulates no more than 1,000 kilograms of hazardous waste at any one time. An entity that produces more than 1,000 kilograms of hazardous waste in a calendar month, or accumulates more than 6,000 kilograms of hazardous waste at any one time, is classified as a large quantity generator (LQG). The question asks about a facility that generates 950 kilograms of hazardous waste in January and 1,100 kilograms in February, while also accumulating 5,500 kilograms at the end of February. The critical factor for generator status is the *monthly* generation rate. In January, the facility generated 950 kg, which falls within the SQG range (100-999 kg/month). However, in February, the facility generated 1,100 kg. This quantity exceeds the SQG threshold of 999 kg and meets the definition of a large quantity generator for that month. While the accumulation limit for an SQG is 6,000 kg, the monthly generation rate is the primary determinant for initial classification and the associated regulatory requirements. Therefore, by generating 1,100 kg in February, the facility transitions to being regulated as a large quantity generator for that period and any subsequent period until its generation rates fall below the LQG thresholds. The accumulation of 5,500 kg at the end of February is relevant to SQG status if the monthly generation had remained below 1,000 kg, but the increased monthly generation in February overrides this. The question focuses on the *current* status based on the most recent month’s generation.

The Michigan Natural Resources and Environmental Protection Act (NREPA), specifically Part 111, governs hazardous waste management in Michigan. This part establishes a comprehensive framework for identifying, managing, and regulating hazardous waste from its generation to its final disposal. A key aspect of this framework is the generator’s responsibility to determine if a waste is hazardous. This determination is a multi-step process. Initially, generators must consult the lists of hazardous wastes found in the administrative rules promulgated under Part 111, specifically the Michigan Administrative Code (MAC). If a waste is not explicitly listed, the generator must then assess whether it exhibits any of the hazardous characteristics: ignitability, corrosivity, reactivity, or toxicity. The toxicity characteristic is determined through a specific testing procedure, the Toxicity Characteristic Leaching Procedure (TCLP). If a waste meets the criteria for any of these characteristics, it is classified as hazardous. Therefore, understanding the regulatory definitions and the characteristic properties of hazardous waste, as outlined in the MAC and federal regulations adopted by reference, is fundamental for compliance. The question probes this foundational knowledge by asking about the initial step in determining hazardous waste status when a waste is not explicitly listed.

Michigan’s Hazardous Waste Management Act (Part 111 of the Natural Resources and Environmental Protection Act, or NREPA) and its associated administrative rules (Michigan Administrative Code R 299.9101 et seq.) establish a comprehensive framework for managing hazardous waste. A key aspect of this framework involves the identification and management of hazardous waste generators. The generator status is determined by the amount of hazardous waste produced per calendar month. Small quantity generators (SQGs) in Michigan are defined as those who generate between 100 and 1,000 kilograms (approximately 220 to 2,200 pounds) of hazardous waste per month, or less than 1 kilogram of acutely hazardous waste per month. Large quantity generators (LQGs) generate 1,000 kilograms or more of hazardous waste per month, or more than 1 kilogram of acutely hazardous waste per month. Very small quantity generators (VSQGs), sometimes referred to as conditionally exempt small quantity generators (CESQGs) under federal definitions, generate 100 kilograms or less of hazardous waste per month, and less than 1 kilogram of acutely hazardous waste per month. The classification dictates specific regulatory requirements for storage, record-keeping, personnel training, and emergency preparedness. A facility that consistently generates hazardous waste at the upper threshold of the SQG category, for example, 950 kilograms in January and 1,050 kilograms in February, would be classified as a large quantity generator in February due to exceeding the 1,000-kilogram threshold for that month. The determination is based on the highest monthly generation rate.

Michigan’s Hazardous Waste Management Act (Part 111 of the Natural Resources and Environmental Protection Act, PA 451 of 1994, as amended) governs the generation, transportation, treatment, storage, and disposal of hazardous waste. Under this act, a generator is defined by the amount of hazardous waste produced per month. For small quantity generators (SQGs), this threshold is typically between 100 kilograms (kg) and 1,000 kg of hazardous waste per calendar month, and less than 1 kg of acutely hazardous waste per calendar month. Large quantity generators (LQGs) generate 1,000 kg or more of hazardous waste per month, or 1 kg or more of acutely hazardous waste per month. Conditionally exempt small quantity generators (CESQGs) generate 100 kg or less of hazardous waste per month, and less than 1 kg of acutely hazardous waste per month. The classification dictates the specific regulatory requirements for management, record-keeping, and reporting. A facility that consistently generates 950 kg of non-acute hazardous waste and 0.5 kg of acutely hazardous waste in a given month would fall into the Small Quantity Generator category because while the non-acute waste is below the LQG threshold, the acutely hazardous waste is also below the LQG threshold for acutely hazardous waste. The regulatory framework in Michigan aligns with federal RCRA regulations but may have state-specific nuances. Understanding these thresholds is critical for compliance and proper waste management practices within the state.

The Michigan Hazardous Waste Management Act, specifically Part 111 of the Natural Resources and Environmental Protection Act (NREPA), governs the management of hazardous waste. Under this act, a facility that treats, stores, or disposes of hazardous waste must obtain a hazardous waste license. The definition of a “hazardous waste facility” is broad and encompasses any site where hazardous waste is treated, stored, or disposed of. Even if a facility is primarily engaged in another activity, if it handles hazardous waste in a manner that falls under these definitions, it requires a license. The question describes a situation where a manufacturing plant in Michigan generates and temporarily stores hazardous waste on-site before shipment to a licensed disposal facility. The temporary storage on-site, even if for less than 90 days, still constitutes “storage” under the Act. Therefore, the plant is operating as a hazardous waste storage facility and must obtain a hazardous waste license from the Michigan Department of Environment, Great Lakes, and Energy (EGLE) to legally conduct these operations. This requirement is fundamental to ensuring proper environmental protection and regulatory oversight of hazardous waste management within the state of Michigan. The Act aims to prevent the uncontrolled release of hazardous substances into the environment, and licensing serves as a key mechanism for achieving this goal by imposing specific operational standards and compliance requirements on facilities handling such materials.

The Michigan Natural Resources and Environmental Protection Act, Part 111 (Hazardous Waste Management), and its corresponding administrative rules (Michigan Administrative Code, R 299.9101 et seq.) establish a comprehensive framework for the generation, transportation, treatment, storage, and disposal of hazardous waste. A key aspect of this framework involves the categorization of facilities based on the quantity of hazardous waste they generate. Small Quantity Generators (SQGs) are defined by specific thresholds. In Michigan, a facility is classified as an SQG if it generates at least 100 kilograms (kg) but less than 1,000 kg of hazardous waste in a calendar month, or if it accumulates no more than 1,000 kg of hazardous waste at any time. Furthermore, an SQG must not generate more than 1 kg of acute hazardous waste in a calendar month. The regulations also specify requirements for SQGs regarding manifest usage, personnel training, emergency preparedness, and record-keeping, though these are less stringent than those for Large Quantity Generators. Understanding these generation thresholds is fundamental to determining applicable regulatory requirements under Michigan law.

The Michigan Hazardous Waste Management Act (Part 111 of the Natural Resources and Environmental Protection Act, NREPA, MCL 324.11101 et seq.) and its associated administrative rules (Michigan Administrative Code, R 299.9101 et seq.) establish a comprehensive framework for managing hazardous waste within the state. A critical aspect of this framework is the definition of hazardous waste itself. Under Michigan law, a solid waste is classified as hazardous if it is specifically listed by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) or if it exhibits one or more of the characteristics of hazardous waste: ignitability, corrosivity, reactivity, or toxicity. The toxicity characteristic is determined by the Toxicity Characteristic Leaching Procedure (TCLP), a standardized test designed to simulate leaching in a landfill. If a waste fails the TCLP for any of the regulated constituents at concentrations exceeding the specified regulatory levels, it is considered a toxic hazardous waste. For example, if a waste material from a manufacturing process in Detroit were subjected to the TCLP and the leachate contained lead at a concentration of 6 mg/L, it would be classified as hazardous because the regulatory limit for lead under the toxicity characteristic is 5 mg/L. This determination is fundamental for subsequent management requirements, including generation, transportation, treatment, storage, and disposal. The intent is to protect public health and the environment from the adverse effects of hazardous waste.

The Michigan Environmental Protection Act (Part 111 of the Natural Resources and Environmental Protection Act, NREPA) governs hazardous waste management. A key aspect of this law is the definition of a “generator” and their responsibilities. Under Michigan regulations, a generator is a person who produces hazardous waste or, for the purposes of tracking, the first person who owns or operates a hazardous waste treatment, storage, or disposal facility that receives hazardous waste from a generator. However, the question specifies that the facility *treats* hazardous waste generated by others. This distinction is crucial. While the facility receives hazardous waste, its primary activity described is treatment. The definition of a generator is tied to the *production* of waste or the *first ownership/operation* of a facility receiving waste *from a generator*. A facility that solely treats waste generated by others, without producing it itself or being the initial recipient of waste from an off-site generator, does not fit the primary definition of a generator under Michigan law. Instead, such a facility would likely be regulated as a treatment, storage, and disposal facility (TSDF) under separate provisions, but its classification as a generator is contingent on producing the waste or being the initial point of transfer from an off-site generator. Therefore, if the facility’s sole role is to treat waste produced by other entities and it does not own or operate the initial receiving point for waste from off-site generators, it is not considered a generator in the context of producing the waste itself. The prompt implies the facility is acting as a service provider for waste management rather than a producer of the hazardous waste it handles.

The Michigan Environmental Protection Act (Part 111 of the Natural Resources and Environmental Protection Act, NREPA) governs hazardous waste management in Michigan. This act, along with its associated administrative rules (Michigan Administrative Code R 299.9101 et seq.), defines hazardous waste and establishes requirements for generators, transporters, and treatment, storage, and disposal facilities (TSDFs). A key aspect is the classification of waste. Waste is considered hazardous if it is listed by the U.S. Environmental Protection Agency (EPA) or exhibits hazardous characteristics such as ignitability, corrosivity, reactivity, or toxicity. The toxicity characteristic is determined through the Toxicity Characteristic Leaching Procedure (TCLP). If a waste fails TCLP for specific contaminants above regulatory thresholds, it is classified as hazardous. For example, if a waste exhibits a pH less than or equal to 2.0, it would be considered corrosive hazardous waste under the characteristic definition. The generator is responsible for determining if their waste is hazardous. This determination is critical for proper management, manifesting, and disposal. The question focuses on a generator’s responsibility in characterizing a waste stream that might exhibit a hazardous characteristic. The scenario describes a waste with a pH of 1.5, which falls below the threshold of 2.0 for corrosivity as defined in the federal regulations adopted by Michigan. Therefore, this waste is classified as hazardous.

The Michigan Environmental Protection Act (MEPA), Public Act 451 of 1994, as amended, is the overarching environmental statute in Michigan. Within MEPA, Part 111, titled “Hazardous Waste Management,” specifically addresses the generation, transportation, treatment, storage, and disposal of hazardous waste. This part of the law establishes the framework for regulating hazardous waste in Michigan, aligning with federal regulations under the Resource Conservation and Recovery Act (RCRA). Key provisions include the definition of hazardous waste, generator requirements, transporter requirements, and facility permitting. The Department of Environment, Great Lakes, and Energy (EGLE) is the primary agency responsible for implementing and enforcing these regulations. MEPA, Part 111, mandates that any person who generates, transports, or owns or operates a hazardous waste treatment, storage, or disposal facility must comply with its provisions and the rules promulgated thereunder. This includes obtaining necessary permits, manifesting waste shipments, and adhering to specific management standards. The law also outlines enforcement mechanisms, penalties for violations, and provisions for citizen suits. Understanding the relationship between MEPA and federal RCRA is crucial, as Michigan’s program is authorized by the U.S. Environmental Protection Agency (EPA) to operate in lieu of the federal program, meaning Michigan’s rules are generally at least as stringent as federal requirements.

The Michigan Environmental Protection Act (MEPA), Public Act 451 of 1994, as amended, provides the framework for environmental protection in Michigan. Specifically, Part 111 of MEPA addresses hazardous waste management, aligning with the federal Resource Conservation and Recovery Act (RCRA). Under Part 111, the Michigan Department of Environment, Great Lakes, and Energy (EGLE) is responsible for implementing and enforcing hazardous waste regulations. Generators of hazardous waste are classified based on the quantity of waste they produce. Small Quantity Generators (SQGs) are subject to less stringent requirements than Large Quantity Generators (LQGs). The specific thresholds for these classifications are crucial for determining regulatory obligations. For Michigan, an SQG is defined as a generator who produces between 100 and 1,000 kilograms of hazardous waste per month. A Very Small Quantity Generator (VSQG) produces less than 100 kilograms of hazardous waste per month. An LQG generates 1,000 kilograms or more of hazardous waste per month. The question asks about the regulatory classification of a facility that consistently generates 850 kilograms of hazardous waste per month in Michigan. Based on the established thresholds, 850 kilograms falls within the range of 100 to 1,000 kilograms per month, which defines a Small Quantity Generator under Michigan’s hazardous waste regulations. Therefore, the facility would be classified as a Small Quantity Generator.

The Michigan Hazardous Waste Management Act, Public Act 451 of 1994, as amended, and its associated administrative rules (Michigan Administrative Code, Rules 299.9101 et seq.) govern the generation, transportation, treatment, storage, and disposal of hazardous waste within the state. A critical aspect of this regulatory framework is the definition of a hazardous waste generator, which dictates the specific requirements a facility must adhere to. Under these regulations, a generator is classified based on the quantity of hazardous waste produced per calendar month. Specifically, a “large quantity generator” (LQG) is defined as a generator who produces 1,000 kilograms (kg) or more of hazardous waste in a calendar month, or who accumulates more than 1 kilogram (kg) of acute hazardous waste in a calendar month. A “small quantity generator” (SQG) is one who produces more than 100 kg but less than 1,000 kg of hazardous waste per month, or accumulates no more than 1,000 kg of hazardous waste and no acute hazardous waste. Facilities generating 100 kg or less of hazardous waste per month, and no acute hazardous waste, are considered conditionally exempt small quantity generators (CESQGs). The scenario describes a facility in Michigan that consistently generates 950 kg of hazardous waste per month and has an isolated instance of generating 1,100 kg in a single month, with no acute hazardous waste involved. The classification is determined by the highest quantity generated in any given month. Therefore, in the month where 1,100 kg was generated, the facility met the criteria for a large quantity generator, even if other months fall below that threshold. This designation triggers a more stringent set of regulatory obligations, including manifest requirements, storage time limits, personnel training, and emergency preparedness. Understanding these quantity-based thresholds is fundamental to ensuring compliance with Michigan’s hazardous waste regulations.

The Michigan Hazardous Waste Management Act, specifically Part 111 of the Natural Resources and Environmental Protection Act (NREPA), establishes a comprehensive framework for managing hazardous waste. A key aspect of this framework involves the generator’s responsibility for waste characterization and management. When a facility generates a waste that is not specifically listed as hazardous, but exhibits one or more hazardous characteristics (ignitability, corrosivity, reactivity, or toxicity), it must be managed as hazardous waste. The toxicity characteristic is determined through testing, such as the Toxicity Characteristic Leaching Procedure (TCLP). If a waste fails the TCLP for specific contaminants above regulatory thresholds, it is classified as hazardous. The generator must then comply with all applicable regulations for storage, treatment, and disposal of this characteristic hazardous waste. This includes obtaining an EPA identification number, adhering to accumulation time limits, proper container management, manifesting shipments, and ensuring disposal at a permitted treatment, storage, and disposal facility (TSDF). The question assesses the understanding that even unlisted wastes become subject to hazardous waste regulations if they exhibit a characteristic of hazardous waste, as defined by Michigan’s implementation of the federal Resource Conservation and Recovery Act (RCRA) program. The core principle is that the *properties* of the waste, not just its listing, dictate its regulatory status. Therefore, a waste that fails TCLP for lead, even if not explicitly listed, is considered hazardous under Michigan law.

The Michigan Hazardous Waste Management Act (Part 111 of the Natural Resources and Environmental Protection Act, 1994 PA 451, as amended) governs the generation, transportation, treatment, storage, and disposal of hazardous waste within the state. A key aspect of this act is the definition of hazardous waste itself, which is primarily determined by whether a waste exhibits a hazardous characteristic or is listed by the Michigan Department of Environment, Great Lakes, and Energy (EGLE). Characteristic wastes are those that are ignitable, corrosive, reactive, or toxic, as defined by specific criteria. Listed wastes are those specifically identified by EGLE as hazardous due to their source or composition. For a waste to be regulated as hazardous under Michigan law, it must meet one of these criteria. If a waste does not exhibit any of the hazardous characteristics and is not on the EGLE’s list of hazardous wastes, it is considered non-hazardous and therefore not subject to the stringent management requirements of Part 111. The scenario describes a waste generated by a manufacturing process in Michigan. The analysis confirms it is not ignitable, corrosive, or reactive. Crucially, the waste is also not listed by EGLE as a hazardous waste. Therefore, it does not meet the definition of hazardous waste under Michigan law and is not regulated under Part 111. The question tests the understanding of how a waste is classified as hazardous in Michigan, focusing on the absence of listed or characteristic criteria.

The Michigan Hazardous Waste Management Act (Part 111 of the Natural Resources and Environmental Protection Act, PA 451 of 1994, as amended) governs the generation, transportation, treatment, storage, and disposal of hazardous waste within the state. A key aspect of this act is the definition and management of hazardous waste, which includes characteristic wastes and listed wastes. Characteristic wastes are those exhibiting ignitability, corrosivity, reactivity, or toxicity, as defined by specific criteria. Listed wastes are those specifically identified by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) as hazardous due to their origin or composition. For a waste to be considered hazardous under Michigan law, it must meet one of these criteria. If a waste does not exhibit any of the four characteristics (ignitability, corrosivity, reactivity, toxicity) and is not specifically listed by EGLE as hazardous, it is generally considered non-hazardous. The process of waste determination is crucial for compliance. Generators are responsible for accurately identifying their waste streams. If a waste is a solid waste that is not excluded by regulation and does not meet the definition of hazardous waste, it is managed as non-hazardous solid waste. This distinction dictates the regulatory pathway and associated management requirements. Therefore, a waste that is not ignitable, not corrosive, not reactive, not toxic, and not listed by EGLE is not a hazardous waste under Michigan’s regulatory framework.

The Michigan Natural Resources and Environmental Protection Act, Part 111, Hazardous Waste Management, establishes the framework for regulating hazardous waste in Michigan. This act, along with its administrative rules (promulgated under the Natural Resources and Environmental Protection Act, 1994 PA 451, as amended), defines hazardous waste and sets forth requirements for generators, transporters, and treatment, storage, and disposal facilities (TSDFs). A key aspect is the determination of when a waste becomes subject to regulation. For a solid waste, if it exhibits any of the characteristics of hazardous waste (ignitability, corrosivity, reactivity, or toxicity) as defined by the Michigan Department of Environment, Great Lakes, and Energy (EGLE), it is considered hazardous waste. The toxicity characteristic is determined by the Toxicity Characteristic Leaching Procedure (TCLP), which simulates leaching in a landfill. If the TCLP extract for any of the specified contaminants exceeds the regulatory threshold, the waste is classified as hazardous due to toxicity. Therefore, a solid waste that, when subjected to the TCLP test, yields an extract with a concentration of benzene exceeding 0.5 mg/L is definitively classified as hazardous waste under Michigan’s regulatory scheme. This classification triggers a cascade of management requirements, including manifesting, record-keeping, and specific disposal protocols. The 0.5 mg/L threshold for benzene in the TCLP extract is a direct application of the toxicity characteristic criteria outlined in the relevant regulations.

The Michigan Hazardous Waste Management Act, specifically Part 111 of the Natural Resources and Environmental Protection Act (NREPA), outlines the framework for managing hazardous waste. A critical aspect of this act is the definition and regulation of hazardous waste generators. Generators are classified based on the quantity of hazardous waste they produce per month. A small quantity generator (SQG) in Michigan is defined as a generator who produces more than 100 kilograms but less than 1,000 kilograms of hazardous waste in a calendar month. This classification determines the specific regulatory requirements a facility must adhere to, including storage limits, manifest requirements, and personnel training. For instance, SQGs have different accumulation time limits and reporting obligations compared to large quantity generators. The threshold of 1,000 kilograms per month is a key differentiator. Therefore, a facility generating 950 kilograms of hazardous waste in a month falls within the SQG category. This classification is crucial for compliance and understanding the applicable rules under Michigan’s hazardous waste program, which is largely administered by the Michigan Department of Environment, Great Lakes, and Energy (EGLE).

The Michigan Hazardous Waste Management Act (Part 111 of the Natural Resources and Environmental Protection Act, Public Act 451 of 1994, as amended) and its associated administrative rules (Michigan Administrative Code, R 299.9101 et seq.) govern the generation, transportation, treatment, storage, and disposal of hazardous waste within the state. A key aspect of this regulatory framework is the definition and management of hazardous waste. Waste is generally considered hazardous if it is listed by the U.S. Environmental Protection Agency (EPA) or exhibits one or more hazardous characteristics: ignitability, corrosivity, reactivity, or toxicity. The toxicity characteristic is determined through the Toxicity Characteristic Leaching Procedure (TCLP). If a waste exhibits any of these characteristics or is a listed hazardous waste, it is subject to the full scope of Michigan’s hazardous waste regulations. The question probes the understanding of which specific characteristic, when identified through a standardized testing procedure, classifies a waste as hazardous under Michigan law, irrespective of whether it is a listed waste. The TCLP is the designated test for the toxicity characteristic. Therefore, a waste failing the TCLP for any of the regulated constituents is classified as toxic hazardous waste. The scenario describes a waste from a manufacturing process in Michigan that, when subjected to the TCLP, shows a leachate concentration of lead exceeding the regulatory limit. This directly indicates the waste exhibits the toxicity characteristic.

The Michigan Hazardous Waste Management Act, specifically Part 111 of the Natural Resources and Environmental Protection Act (NREPA), governs the generation, transportation, treatment, storage, and disposal of hazardous waste within the state. A key aspect of this act is the definition of a “generator” and the associated requirements. A generator is defined by the amount and type of hazardous waste produced. Small Quantity Generators (SQGs) are distinct from Large Quantity Generators (LQGs) based on their monthly generation rates. For most hazardous wastes, an SQG is a generator who produces between 100 kilograms (kg) and 1,000 kg of hazardous waste per month. An LQG generates 1,000 kg or more of hazardous waste per month, or more than 1 kg of acutely hazardous waste per month. The scenario describes a facility in Michigan that generates 950 kg of hazardous waste in a month. This quantity falls within the range for a Small Quantity Generator, as defined by Michigan’s hazardous waste regulations, which are largely aligned with federal Resource Conservation and Recovery Act (RCRA) definitions but implemented through state law. Therefore, the facility would be classified as a Small Quantity Generator.