A facility in Houston generates 150 kilograms of non-acute hazardous waste in a calendar month. Under Texas's generator quantity thresholds, which federal-equivalent generator category does this place the facility in?
A. SQG
B. LQG
C. There is no such category under Texas rules
D. VSQG (formerly CESQG)
Show answer and reasoning
Correct answer: A. SQG
- B: LQG requires generation of more than 1,000 kg (2,200 lbs) per month, which this facility has not reached.
- C: Texas adopts the same three-tier generator category system as federal RCRA; it does not eliminate or rename the categories.
- D: VSQG (formerly CESQG) applies only below 100 kg/month of non-acute hazardous waste; 150 kg/month exceeds that ceiling.
Source: 30 TAC §335.6(c) generator registration thresholds; TCEQ Generator Status Regulatory Chart; https://www.tceq.texas.gov/downloads/assistance/waste/industrial-hazardous/generator-status-regulatory-chart.pdf
Does the Texas Commission on Environmental Quality (TCEQ) apply its own, state-specific pound-based generator category thresholds that differ numerically from the federal EPA VSQG/SQG/LQG kilogram thresholds?
A. Yes — Texas uses a 30-day rolling average instead of a calendar-month period
B. No — Texas's 220 lb/month and 2,200 lb/month thresholds are the pound equivalents of the federal 100 kg/month and 1,000 kg/month thresholds
C. Yes — Texas sets its SQG threshold at 500 lbs/month instead of the federal equivalent
D. Yes — Texas eliminated the SQG category entirely and only recognizes VSQG and LQG
Show answer and reasoning
Correct answer: B. No — Texas's 220 lb/month and 2,200 lb/month thresholds are the pound equivalents of the federal 100 kg/month and 1,000 kg/month thresholds
- A: The chart and 30 TAC 335.6(c) use the same calendar-month generation period as federal 40 CFR 262.
- C: TCEQ's published Generator Status Regulatory Chart lists 220-2,200 lbs/month for SQG, which converts to the same 100-1,000 kg/month federal band; no alternate threshold exists.
- D: Texas retains all three categories (CESQG/VSQG, SQG, LQG) exactly as the federal chart shows.
Source: TCEQ Generator Status Regulatory Chart (30 TAC 335.6, 335.69, 335.78, 335.9); https://www.tceq.texas.gov/downloads/assistance/waste/industrial-hazardous/generator-status-regulatory-chart.pdf
Under 30 TAC §335.69(f)(1), what is the maximum quantity of hazardous waste a Small Quantity Generator (SQG) in Texas may accumulate on-site at any time?
A. There is no storage quantity limit for SQGs
B. 1,000 kilograms
C. 6,000 kilograms
D. 2,200 kilograms
Show answer and reasoning
Correct answer: C. 6,000 kilograms
- A: Only LQGs have no storage quantity limit; SQGs are capped at 6,000 kilograms.
- B: 1,000 kilograms is the CESQG/VSQG on-site storage cap under 30 TAC §335.78(g)(2), not the SQG cap.
- D: 2,200 kilograms is the monthly generation rate that separates SQG from LQG status, not a storage accumulation limit.
Source: 30 TAC §335.69(f)(1) SQG hazardous waste storage limit; https://www.law.cornell.edu/regulations/texas/30-Tex-Admin-Code-SS-335-69
A Very Small Quantity Generator (VSQG, historically called CESQG in Texas guidance) in Amarillo wants to know its maximum on-site hazardous waste accumulation limit under 30 TAC §335.78(g)(2). What is that limit?
A. 6,000 kilograms
B. No limit applies to VSQGs in Texas
C. 500 kilograms
D. 1,000 kilograms
Show answer and reasoning
Correct answer: D. 1,000 kilograms
- A: 6,000 kilograms is the SQG limit under 30 TAC §335.69(f)(1), a higher-tier generator category.
- B: VSQGs are still capped at 1,000 kilograms; only LQGs face no storage cap.
- C: 500 kilograms is not a figure used in the Texas generator storage-limit chart.
Source: 30 TAC §335.78(g)(2) VSQG/CESQG storage limit; https://www.law.cornell.edu/regulations/texas/30-Tex-Admin-Code-SS-335-78
An SQG in Texas ships hazardous waste to a TSDF located 240 miles away. Under 30 TAC §335.69(f) (incorporating 40 CFR §262.34(d) and (e)), how long may the SQG accumulate that waste on-site before it must ship off?
A. 270 days
B. 365 days
C. 90 days
D. 180 days
Show answer and reasoning
Correct answer: A. 270 days
- B: 365 days is not a recognized hazardous waste accumulation period under Texas or federal rules.
- C: 90 days is the LQG accumulation limit, not the SQG limit that applies here.
- D: 180 days is the standard SQG accumulation limit only when the destination facility is 200 miles or less away.
Source: TCEQ Generator Status Regulatory Chart, accumulation time limits row (30 TAC 335.69(f)/40 CFR 262.34(d)&(e)); https://www.tceq.texas.gov/downloads/assistance/waste/industrial-hazardous/generator-status-regulatory-chart.pdf
