Free Arizona RCRA Practice Test Online

Correct answer: B. Very Small Quantity Generator (VSQG)

Correct. A VSQG generates less than 100 kilograms of hazardous waste per month, which matches this facility's 75 kg monthly generation.

• A: Incorrect. SQG applies to generators producing 100 to 1,000 kilograms per month. This facility produces only 75 kg, falling below the SQG threshold.
• C: Incorrect. LQG applies to generators producing more than 1,000 kilograms per month. This facility's 75 kg is far below the LQG threshold.
• D: Incorrect. CESQG is not a standard generator category under RCRA. The three primary categories are VSQG, SQG, and LQG.

Correct answer: A. 1,000 kilograms

Correct. The threshold is 1,000 kilograms per month. Generators producing more than 1,000 kg per month are classified as LQG, while those producing 100 to 1,000 kg are SQG.

• B: Incorrect. 500 kilograms is not the threshold between SQG and LQG under federal RCRA rules.
• C: Incorrect. 2,500 kilograms exceeds the actual SQG to LQG threshold and is not used in RCRA generator classifications.
• D: Incorrect. 5,000 kilograms is not the threshold between SQG and LQG under federal RCRA regulations.

Correct answer: B. Small Quantity Generator (SQG)

Correct. SQG applies to generators producing 100 to 1,000 kilograms per month. This facility's 150 kg falls within the SQG range.

• A: Incorrect. LQG applies to generators producing more than 1,000 kilograms per month. This facility produces only 150 kg, well below the LQG threshold.
• C: Incorrect. VSQG applies to generators producing less than 100 kilograms per month. This facility's 150 kg exceeds the VSQG threshold.
• D: Incorrect. All generators of hazardous waste must comply with RCRA requirements and fall into one of the three generator categories.

Correct answer: C. The waste leaches specific contaminants at concentrations above EPA limits when tested with the Toxicity Characteristic Leaching Procedure (TCLP)

Correct. The Toxicity Characteristic is determined by testing waste with TCLP. If the leachate exceeds established concentration limits for specific contaminants, the waste is classified as hazardous.

• A: Incorrect. RCRA's Toxicity Characteristic does not classify waste based on inherent chemical composition alone; it requires leaching test results.
• B: Incorrect. Toxicity Characteristic is determined by TCLP leaching results, not by gas or vapor emissions at room temperature.
• D: Incorrect. Being on a hazardous substance list is separate from the Toxicity Characteristic. A chemical's presence does not automatically trigger the toxicity characteristic classification.

Correct answer: C. Yes, the waste is hazardous because the TCLP leachate exceeds the regulatory limit for TCE

Correct. The leachate concentration of 2 mg/L exceeds the regulatory limit of 0.5 mg/L, making this waste hazardous under the Toxicity Characteristic.

• A: Incorrect. Spent solvent status does not exempt waste from hazardous classification. TCLP testing determines the Toxicity Characteristic.
• B: Incorrect. The TCLP result, not the original concentration in the waste, determines hazardous classification.
• D: Incorrect. The presence of TCE does not automatically make waste hazardous. The TCLP leachate concentration must exceed the regulatory limit.