§ 53.05 LOCAL LIMITS.

   (A)   An industrial waste survey is required prior to a use discharging wastewater containing in excess of the following average discharge limits:

      (1)   BOD: 250 mg/l;

      (2)   TSS: 250 mg/l;

      (3)   NH3: 25 mg/l;

      (4)   Arsenic: 0.01 mg/l;

      (5)   Cadmium: 0.005 mg/l;

      (6)   Chromium: 0.05 mg/l (total chromium);

      (7)   Chlorides: 250 mg/l;

      (8)   Color: 15 color units;

      (9)   Copper: 0.06 mg/l;

      (10)   Cyanide: 0.015 mg/l;

      (11)   Lead: 0.015 mg/l;

      (12)   Mercury: 0.001 mg/l;

      (13)   Nickel: 0.01 mg/l;

      (14)   Silver: 0.01 mg/l; and

      (15)   Zinc: 0.175 mg/l.

   (B)   Industrial waste survey information will be used to develop user-specific local limits when necessary to ensure that the POTW's maximum allowable headworks loading are not exceeded for particular pollutants of concern. User-specific local limits for appropriate pollutants of concern shall be included in wastewater permits. The POTW Director may impose mass based limits in addition to, or in place of concentration based limits.

(Ord. – § 2.3, passed 9-26-2005)