2.4 Other Chemicals
(1), benzodiazepines (a) pyrene (Benzo (a) pyrene) must not exceed 0.2 micrograms per liter.
(2) cyanide (Cyanide) must not exceed 200 micrograms per liter.
(3) PCBs (PCBs) must not exceed 0.5 micrograms per liter.
(4), vinyl chloride (Vinyl Chloride) must not exceed 2 micrograms per liter.