Amending Chapter 17 EPA's Recommendations

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(2) The following pollutant limits are established to protect against Pass Through and Interference. These lifnitations May be applied as e4her instantaneous i i. tions or daily nifflEifntifn limitations No persen Significant Industrial User shall discharge wastewater eentaining in excess of the following daily maximum discharge limitations: [0.00019) mg/L total mercury. (3) The Director may, at the Director's sole discretion, implement local limits through allocation of the Maximum Allowable Industrial Load (MAIL) to Significant Industrial Users. The MAIL is the total daily loading of a pollutant available to be allocated to all Significant Industrial Users. MAILS for the following pollutants are hereby incorporated by reference: a- Arsenic c Cadmium {-7.3j =.mac Chromium Copper �1- 53 mg/4-c Cyanide �1.61 mg/4-1 Lead r 0.1] ffig/I t 1.9, n n Nickel r-1.8] rn /1-s Silver X3.4] Fflg'+zZinc (4) Significant Industrial Users (SIU) who have not been given an allocation for one of the pollutants listed above shall notify the City of South Bend at least 90 days in advance of a change in the characteristics of their wastewater that would increase the expected concentration of that pollutant in their wastewater discharge. In addition, the City may determine at any time that an SIU wastewater discharge requires a limitation for a pollutant regardless of the concentration levels listed below, and may then develop a limit based on the MAIL. In any case SIU discharge that is found to contain in excess of the following concentrations will be reviewed for the need for a limit. The Director may require more sensitive analysis when results are reported as less than the following concentrations or less than greater concentrations: Arsenic -0.2 mg/L Cadmium -0.1 mg/L Chromium -2.0 mg/L Copper -0.3 mg /L Lead -0.3 mg/L