Hazardous Waste - Accumulation Time Limits

LQGs are allowed to accumulate hazardous waste on site for up to 90 days in specified units without obtaining a storage permit, if they comply with the requirements of T22, CCR section 66262.34(a) & (f).

SQGs may accumulate up to 6,000 kg of hazardous waste for 180 days or less without a storage permit if they comply with the modified requirements in T22, section 66262.34(d). If the TSDF is 200 miles or more away, the generator may accumulate hazardous waste for 270 days or less. Note that these extended time limits only apply to SQGs accumulating waste in tanks or containers. SQGs who accumulate waste in containment buildings or on drip pads are subject to the accumulation standards for LQGs.

Generators may receive a 30-day extension to their 90-day, 180-day, or 270-day accumulation period if uncontrollable and unforeseen circumstances cause them to accumulate waste on site for longer than the allowed time period. Such an extension may be granted by DTSC on a case-by-case basis. An example of an uncontrolled or unforeseen circumstance is a truckers’ strike preventing the shipment of waste off site.

LQGs and SQGs accumulating waste beyond the authorized time limits for their categories become storage facilities subject to the requirements applicable to Owners and Operators of Hazardous Waste Transfer, Treatment, Storage, and Disposal Facilities including permitting. An SQG who accumulates more than 6,000 kg during the authorized period also becomes a storage facility.

Satellite Accumulation

Satellite accumulation allows generators to accumulate hazardous waste for up to one year at or near the point where it is initially generated and collected during daily operation thereby exempting generators from the accumulation standards including the 90,180 or 270 day accumulation limits if certain conditions are met.

A person may accumulate up to 55 gallons of hazardous waste or 1 quart of acute hazardous waste at each satellite accumulation area, if it is under the control of the person operating the process that generates the waste. Limited standards, such as labeling and maintaining the container in good condition, apply to satellite areas. Once the 55-gallon or 1 quart limit is exceeded at the satellite area, the excess waste must be dated and moved within three days to the central accumulation area where LQG or SQG accumulation standards apply (or the waste can be shipped directly off site).

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