Facility Audit: Deer Park, TX - Clean Harbors

Miscellaneous Units
The Clean Harbors Deer Park facility manages hazardous waste in six miscellaneous units, three
of which are authorized under the current permit, the other being a unit for which authorization is
being requested.
These six units are:
• Railcar Unloading Area
• Direct Burn Areas
• Container QC Area
• Continuous Mixer/B-1203 Pugmill (S & E Facility)
• Rotary Reactor Feed System
• PCB Shredder
The first three of these units were permitted as Miscellaneous Units per a previous agreed order
between the company and the Texas Water Commission. The fourth unit (the Continuous
Mixer/B-1203 Pugmill) was permitted as a Miscellaneous Unit prior to construction, based upon
its process function.
Table IV summarizes Miscellaneous Unit data, according to Notice of Registration (NOR) Unit
Number, storage or process function, waste managed in each unit, rated capacity, dimensions,
and whether the unit processes or stores ignitable or incompatible wastes.
A. Railcar Unloading Area
The railcar unloading area is designed to accommodate two 25,000-gallon bulk liquid (or sludge)
railcars during unloading operations. The combined capacity of the system at any one time is
50,000 gallons (two railcars). During unloading, both railcars may be simultaneously processed.
Unloaded waste material may be pumped to the adjacent tank farm or directly to the incinerators.
The area is constructed of a reinforced concrete slab surrounded by a 6-inch concrete curb. A
drainage trench runs through the area, and is sloped to a collection sump equipped with an
automatic pump. The capacity of the drainage sump is 2,336 gallons. A level switch
automatically activates the pump so that collected material can be removed immediately. This
allows sufficient volume to manage rainfall. The railcar unloading area is equipped with a
dedicated vent system to control emissions.
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