Standard Values for Contaminated Soils

Contaminated Soil Treatment

Table of Standard Values for Contaminated Soils

Type of Toxic SubstanceStandard Values in Soil Contamination Countermeasures ActPermitted for Ohno Associates
Leachate Standard (mg/L)Content Standard (mg/kg)Ground Water Standard (mg/L)Landfill1 ※1(Second Leachate Standard)CleaningCrushing and Grading (Classification)Pyrolysis
Class I (11 items)Carbon Tetrachloride≤0.002≤0.0020.02
1,2-Dichloroethane≤0.004≤0.0040.04
1,1-Dichloroethylene≤0.1≤0.11
Cis-1,2-Dichloroethylene≤0.04≤0.040.4
1,3-Dichloropropene

≤0.002

≤0.0020.02
Dichloromethane≤0.02≤0.020.2
Tetrachloroethylene≤0.01≤0.010.1
1,1,1-Trichloroethane≤1≤13
1,1,2-Trichloroethane

≤0.006

≤0.0060.06
Trichloroethylene

≤0.03

≤0.030.3
Benzene≤0.01≤0.010.1
Class II (9 items)Cadmium and Compounds≤0.01≤150≤0.010.3
Hexavalent Chromium Compounds≤0.05≤250≤0.051.5
Cyanogen CompoundsNot detected≤50 (as free cyanide)

Not detected

1
Mercury and CompoundsMercury ≤0.0005 and alkyl mercury not detected≤15Mercury ≤0.0005 and alkyl mercury not detected0.005
※2
Selenium and Compounds≤0.01

≤150

≤0.010.3
Lead and Compounds≤0.01≤150≤0.010.3
Arsenic and Compounds≤0.01≤150≤0.010.3
Fluorine and Compounds≤0.8

≤4,000

≤0.824
Boron and Compounds≤1≤4,000≤130
Class III (5 items)Simazine≤0.003≤0.0030.03
Thiuram≤0.006≤0.0060.06
Thiobencarb≤0.02≤0.020.2
PCBNot detectedNot detected0.003
Organic Phosphorous CompoundsNot detectedNot detected1
OthersDioxin3 ※3
Oils5 ※4

※1 Only values not exceeding the standard values are accepted. Unit: mg/L (except for dioxins).
※2 Provided that alkyl mercury is not detected.
※3 Unit: ng-TEQ/g
※4 Value with % oil as unit

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