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A. The following pollutant limits are established to protect against pass through and interference. No person shall discharge wastewater containing in excess of the following daily maximum allowable discharge limits:

Metal

mg/l

Arsenic

0.384

Cadmium

0.285

Copper

0.780

Lead

0.799

Mercury

0.003

Nickel

2.120

Selenium

0.165

Zinc

4.020

Molydenum

0.160

B. The above limits apply to the end of any process or combination of processes identified to have a potential discharge of this pollutant. All concentrations for metallic substances are for total metal unless indicated otherwise. The city may impose mass limitations in addition to or in place of the concentration-based limitations above. Where a user is subject to a categorical pretreatment standard and a local limit for a given pollutant, the more stringent limit or applicable pretreatment standard shall apply. (Ord. 016/2021 § 2; Ord. 011/2004)