Method TCLP Solids

Toxicity Characteristic Leaching Procedure


TCLP is designed to determine the mobility of both organic and inorganic analytes present in liquid, solid, and multiphasic wastes. This procedure describes the leaching technique which is then followed by analytical methods to determine metals, pesticides, herbicides, semi-volatiles, and volatiles. The regulatory limits for the TCLP compounds are listed in the "Typical Detection Limit" column below.


(EPA SW-846)

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Method Data

Hold Times, Preservatives, Preps, Collection, Analytical & Documentation
Holding Time:   From collection to TCLP: Volatiles & Semi-volatiles 14 days, Mercury 28 days, Metals 180 days; From TCLP to extraction: Semi-volatiles 7 days; From extraction to analysis: Volatiles 14 days, Semi-volatiles 40 days, Mercury 28 days, Metals 180 days
Preservatives:   None prior to extraction; may be refrigerated unless it results in irreversible change to the waste; volatile samples at 4 °C
Required Preps:   Samples to be analyzed for volatiles require teflon lined septum capped vials
Collection Method:   Grab sampling
Analytical Methodology:   Metals by ICP or GFAA by EPA 200 methods; GC/ECD by SW-846 8081A for pesticides; GC/ECD by SW-846 8151A for herbicides; GC/MS by SW-846 8270C for semivolatiles; GC/MS by SW-846 8260B for volatiles
Documentation:   1311

Analyte List*

Analyte Formula CAS Number Detection Limit
Heptachlor epoxide
C10H5Cl7O
1024-57-3
0.008
 mg/L
p-Cresol
C7H8O
106-44-5
400
 mg/L
1,4-Dichlorobenzene
C6H4Cl2
106-46-7
7.5
 mg/L
1,2-Dichloroethane
C2H4Cl2
107-06-2
0.5
 mg/L
m-Cresol
C7H8O
108-39-4
400
 mg/L
Chlorobenzene
C6H5Cl
108-90-7
100
 mg/L
Pyridine
C5H5N
110-86-1
5
 mg/L
Hexachlorobenzene
C6Cl6
118-74-1
0.13
 mg/L
2,4-Dinitrotoluene
C7H6N2O4
121-14-2
0.13
 mg/L
Tetrachloroethene
C2Cl4
127-18-4
0.7
 mg/L
gamma-Chlordane
C10H6Cl8
5103-74-2
0.3
 mg/L
Carbon tetrachloride
CCl4
56-23-5
0.5
 mg/L
gamma-BHC (Lindane)
C6H6Cl6
58-89-9
0.4
 mg/L
Chloroform
CHCl3
67-66-3
6
 mg/L
Hexachloroethane
C2Cl6
67-72-1
3
 mg/L
Benzene
C6H6
71-43-2
0.5
 mg/L
Endrin
C12H8Cl6O
72-20-8
0.02
 mg/L
Methoxychlor
C16H15Cl3O2
72-43-5
10
 mg/L
Lead
Pb
7439-92-1
5
 mg/L
Mercury
Hg
7439-97-6
0.2
 mg/L
Silver
Ag
7440-22-4
5
 mg/L
Arsenic
As
7440-38-2
5
 mg/L
Barium
Ba
7440-39-3
100
 mg/L
Cadmium
Cd
7440-43-9
1
 mg/L
Chromium
Cr
7440-47-3
5
 mg/L
Vinyl chloride
C2H3Cl
75-01-4
0.2
 mg/L
1,1-Dichloroethene
C2H2Cl2
75-35-4
0.7
 mg/L
Heptachlor
C10H5Cl7
76-44-8
0.008
 mg/L
Selenium
Se
7782-49-2
1
 mg/L
Methyl ethyl ketone (2-Butanone)
C4H8O
78-93-3
200
 mg/L
Trichloroethene
C2HCl3
79-01-6
0.5
 mg/L
Toxaphene
C10H10Cl8
8001-35-2
0.5
 mg/L
Hexachlorobutadiene
C4Cl6
87-68-3
0.5
 mg/L
Pentachlorophenol
C6HCl5O
87-86-5
100
 mg/L
2,4,6-Trichlorophenol
C6H3Cl3O
88-06-2
2
 mg/L
2,4,5-TP (Silvex)
C9H7Cl3O3
93-72-1
1
 mg/L
2,4-D
C8H6Cl2O3
94-75-7
10
 mg/L
o-Cresol
C7H8O
95-48-7
200
 mg/L
2,4,5-Trichlorophenol
C6H3Cl3O
95-95-4
400
 mg/L
Nitrobenzene
C6H5NO2
98-95-3
2
 mg/L

* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.