§ 50.073  LIMITATION ON WASTEWATER STRENGTH.
   All constituents and characteristics which singly or in combination may damage or impair structures, impair the operation of the wastewater treatment plant, interfere with the treatment process the quality of the receiving stream or its tributaries, including but not limited to the following constituents and characteristics with maximum concentration as shown below.
   (A)    A person shall not discharge any wastewater with:
      (1)   A BOD5 concentration in excess of 800 mg/L in a single 24-hour composite sample, nor in excess in 600 mg/L as a monthly average of any and all samples take during a calendar month;
      (2)   A suspended solids concentration in excess of 400 mg/L in a single 24-hour composite sample, nor in excess of 250 mg/L as a monthly average of any and all samples taken during a calendar month.
   (B)   A person shall not discharge any wastewater containing concentration in excess of:
      (1)   A temperature higher than 150º F.;
      (2)   A pH lower than 6.0 or higher than 9.0;
      (3)   0.20 mg/L cadmium;
      (4)   1.7 mg/L Total Chromium
      (5)   0.25 mg/L hexavalent chromium (Cr, VI) for one day or 0.09 mg/L hexavalent chromium for 30 consecutive days average;
      (6)   2.00 mg/L copper;
      (7)   0.6 mg/L Total Cyanide;
      (8)   0.20 mg/L cyanide amenable to chlorination (CN, A) for one day or 0.08 mg/L cyanide amenable to chlorination for any 30 consecutive days average;
      (9)   0.4 mg/L lead;
      (10)   0.000012 mg/L mercury;
      (11)   0.80 mg/L nickel;
      (12)   0.10 mg/L silver;
      (13)   1.0 mg/L zinc;
      (14)   100 mg/L fats, wax, oil and grease whether emulsified or not;
      (15)   1.0 mg/L phenolic compounds that cannot be removed by the town's wastewater treatment process;
      (16)   2.13 mg/L Total Toxic Organics which shall include the summation of all:
         (a)   Volatile organics as analyzed using US EPA method 624 or equivalent;
         (b)   Semi-Volatile Organics as analyzed using US EPA method 625 or equivalent; and
         (c)   PCBs and pesticides as analyzed using US EPA method 608 or equivalent;
      (17)   45 mg/L ammonia;
      (18)   22 mg/L phosphorus;
      (19)   Any of the divisions above in other concentration than stated above if applicable state or federal regulations or regulations of the Town Council set different maximum concentrations;
      (20)   Any other substance or concentration thereof prohibited to all user classes of users by state or federal law or regulation now or hereafter adopted by the Council;
      (21)   Any waters or wastes containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any sewage treatment process or to constitute a hazard to humans or animals or to create any hazard in the receiving waters of the treatment plant;
      (22)   The limitations imposed by divisions (B)(1) through (B)(18) above are found by the Council to be those attainable by the best practical technology. Limitations adopted by the Council shall in all cases be based on the best practical technology.
      (23)   All metals, unless specifically noted, shall be reported as total recoverable metals. Methods utilized in the analysis of any of the above parameters must be done in accordance with 40 CFR 136 or equivalent. Equivalent methods must be at least as sensitive and specific as those listed and approved by the US EPA.
      (24)   Violations of the parameters set forth in this section shall subject the user to violation fees as defined in § 50.999 -- Penalties, in addition to any and all applicable surcharge fees, surveillance fees, or other fees and or conditions contained within this chapter.
(Ord. 1982-4, passed 7-26-82; Am. Ord. 9-2010, passed 7-28-10; Am. Ord. 04-2014, passed 2-26-14; Am. Ord. 2016-2, passed 2-10-16)  Penalty, see § 50.999