(6) 2, 4 - D (2, 4 - D) must not exceed 30 micrograms per liter.
(7), atrazine (Atrazine) not more than 3 micrograms per liter.
(8), Linden (Lindane) have not. more than 0.2 micrograms per liter
(9) Payne Ta chloro phenol. (Pentachlorophenol) must be less than 1 microgram per liter.
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