Standard Values for Contaminated Soils

Contaminated Soil Treatment

Table of Standard Values for Contaminated Soils

Type of Toxic Substance		Standard Values in Soil Contamination Countermeasures Act			Permitted for Oono Associates
		Leachate Standard (mg/L)	Content Standard (mg/kg)	Ground Water Standard (mg/L)	Landfill1 (Second Leachate Standard)	Cleaning	Crushing and Grading (Classification)	Pyrolysis
Class I (11 items)/th>	Carbon Tetrachloride	≤0.002		≤0.002	0.02		●	●
	1,2-Dichloroethane	≤0.004		≤0.004	0.04		●	●
	1,1-Dichloroethylene	≤0.1		≤0.1	1		●	●
	Cis-1,2-Dichloroethylene	≤0.04		≤0.04	0.4		●	●
	1,3-Dichloropropene	≤0.002		≤0.002	0.02		●	●
	Dichloromethane	≤0.02		≤0.02	0.2		●	●
	Tetrachloroethylene	≤0.01		≤0.01	0.1		●	●
	1,1,1-Trichloroethane	≤1		≤1	3		●	●
	1,1,2-Trichloroethane	≤0.006		≤0.006	0.06		●	●
	Trichloroethylene	≤0.03		≤0.03	0.3		●	●
	Benzene	≤0.01		≤0.01	0.1		●	●
Class II (9 items)	Cadmium and Compounds	≤0.01	≤150	≤0.01	0.3	●	●	●
	Hexavalent Chromium Compounds	≤0.05	≤250	≤0.05	1.5	●	●	●
	Cyanogen Compounds	Not detected	≤50 (as free cyanide)	Not detected	1	●	●	●
	Mercury and Compounds	Mercury ≤0.0005 and alkyl mercury not detected	≤15	Mercury ≤0.0005 and alkyl mercury not detected	0.005 ※2		●	●
	Selenium and Compounds	≤0.01	≤150	≤0.01	0.3	●	●	●
	Lead and Compounds	≤0.01	≤150	≤0.01	0.3	●	●	●
	Arsenic and Compounds	≤0.01	≤150	≤0.01	0.3	●	●	●
	Fluorine and Compounds	≤0.8	≤4,000	≤0.8	24	●	●	●
	Boron and Compounds	≤1	≤4,000	≤1	30	●	●	●
Class III (5 items)	Simazine	≤0.003		≤0.003	0.03		●	●
	Thiuram	≤0.006		≤0.006	0.06		●	●
	Thiobencarb	≤0.02		≤0.02	0.2		●	●
	PCB	Not detected		Not detected	0.003		●	●
	Organic Phosphorous Compounds	Not detected		Not detected	1		●	●
Others	Dioxin				3※3		●	●
	Oils				5※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