2. Groundwater quality must be standardized as
follows. 2.1 VOCs (Volatile Organic Compounds).
(1) benzene (Benzene) must not exceed 5 micrograms per liter.
(2) Carbon tetrachloride (Carbon Tetrachloride) must not exceed 5 micrograms per liter.
(3) 1, 2 - dichloro ethane (1, 2 - Dichloroethane) must not exceed 5 micrograms per liter.