The recordkeeping provisions of §264.73 specify that an owner or operator must keep a written operating record at his facility. This appendix provides additional instructions for keeping portions of the operating record. See §264.73(b) for additional recordkeeping requirements.

The following information must be recorded, as it becomes available, and maintained in the operating record until closure of the facility in the following manner:

Records of each hazardous waste received, treated, stored, or disposed of at the facility which include the following:

(1) A description by its common name and the EPA Hazardous Waste Number(s) from part 261 of this chapter which apply to the waste. The waste description also must include the waste's physical form, i.e., liquid, sludge, solid, or contained gas. If the waste is not listed in part 261, subpart D, of this chapter, the description also must include the process that produced it (for example, solid filter cake from production of ----, EPA Hazardous Waste Number W051).

Each hazardous waste listed in part 261, subpart D, of this chapter, and each hazardous waste characteristic defined in part 261, subpart C, of this chapter, has a four-digit EPA Hazardous Waste Number assigned to it. This number must be used for recordkeeping and reporting purposes. Where a hazardous waste contains more than one listed hazardous waste, or where more than one hazardous waste characteristic applies to the waste, the waste description must include all applicable EPA Hazardous Waste Numbers.

(2) The estimated or manifest-reported weight, or volume and density, where applicable, in one of the units of measure specified in Table 1;

(3) The method(s) (by handling code(s) as specified in Table 2) and date(s) of treatment, storage, or disposal.

Table 2—Handling Codes for Treatment, Storage and Disposal Methods

Enter the handling code(s) listed below that most closely represents the technique(s) used at the facility to treat, store or dispose of each quantity of hazardous waste received.

1. Storage

S01   Container (barrel, drum, etc.)

S02   Tank

S03   Waste Pile

S04   Surface Impoundment

S05   Drip Pad

S06   Containment Building (Storage)

S99   Other Storage (specify)

2. Treatment

(a)   Thermal Treatment—

T06   Liquid injection incinerator

T07   Rotary kiln incinerator

T08   Fluidized bed incinerator

T09   Multiple hearth incinerator

T10   Infrared furnace incinerator

T11   Molten salt destructor

T12   Pyrolysis

T13   Wet air oxidation

T14   Calcination

T15   Microwave discharge

T18   Other (specify)

(b)   Chemical Treatment—

T19   Absorption mound

T20   Absorption field

T21   Chemical fixation

T22   Chemical oxidation

T23   Chemical precipitation

T24   Chemical reduction

T25   Chlorination

T26   Chlorinolysis

T27   Cyanide destruction

T28   Degradation

T29   Detoxification

T30   Ion exchange

T31   Neutralization

T32   Ozonation

T33   Photolysis

T34   Other (specify)

(c)   Physical Treatment—

(1) Separation of components:

T35   Centrifugation

T36   Clarification

T37   Coagulation

T38   Decanting

T39   Encapsulation

T40   Filtration

T41   Flocculation

T42   Flotation

T43   Foaming

T44   Sedimentation

T45   Thickening

T46   Ultrafiltration

T47   Other (specify)

(2) Removal of Specific Components:

T48   Absorption-molecular sieve

T49   Activated carbon

T50   Blending

T51   Catalysis

T52   Crystallization

T53   Dialysis

T54   Distillation

T55   Electrodialysis

T56   Electrolysis

T57   Evaporation

T58   High gradient magnetic separation

T59   Leaching

T60   Liquid ion exchange

T61   Liquid-liquid extraction

T62   Reverse osmosis

T63   Solvent recovery

T64   Stripping

T65   Sand filter

T66   Other (specify)

(d)   Biological Treatment

T67   Activated sludge

T68   Aerobic lagoon

T69   Aerobic tank

T70   Anaerobic tank

T71   Composting

T72   Septic tank

T73   Spray irrigation

T74   Thickening filter

T75   Trickling filter

T76   Waste stabilization pond

T77   Other (specify)

T78-T79 [Reserved]

(e)   Boilers and Industrial Furnaces

T80   Boiler

T81   Cement Kiln

T82   Lime Kiln

T83   Aggregate Kiln

T84   Phosphate Kiln

T85   Coke Oven

T86   Blast Furnace

T87   Smelting, Melting, or Refining Furnace

T88   Titanium Dioxide Chloride Process Oxidation Reactor

T89   Methane Reforming Furnace

T90   Pulping Liquor Recovery Furnace

T91   Combustion Device Used in the Recovery of Sulfur Values from Spent Sulfuric Acid

T92   Halogen Acid Furnaces

T93   Other Industrial Furnaces Listed in 40 CFR 260.10 (specify)

(f)   Other Treatment

T94   Containment Building (Treatment)

3. Disposal

D79   Underground Injection

D80   Landfill

D81   Land Treatment

D82   Ocean Disposal

D83   Surface Impoundment (to be closed as a landfill)

D99   Other Disposal (specify)

4. Miscellaneous (Subpart X)

X01   Open Burning/Open Detonation

X02   Mechanical Processing

X03   Thermal Unit

X04   Geologic Repository

X99   Other Subpart X (specify)

[45 FR 33221, May 19, 1980, as amended at 59 FR 13891, Mar. 24, 1994; 71 FR 40274, July 14, 2006]