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(2) The following pollutant limits are established to protect against Pass <br />Through and Interference. These li ffikatio ,.. May be applied as eithef <br />..tant...,o, us limitation er daily maximum limitafi ns No person <br />Significant Industrial User shall discharge wastewater eentaining in excess <br />of the following daily maximum discharge limitations: (0.00019) mg/L <br />total mercury. <br />(3) The Director may, at the Director's sole discretion, implement local <br />limits through allocation of the Maximum Allowable Industrial Load <br />(MAIL) to Significant Industrial Users. The MAIL is the total daily <br />loading of a pollutant available to be allocated to all Significant Industrial <br />Users. MAILS for the following pollutants are hereby incorporated by <br />reference: <br />( 0.3] mgA,- Arsenic <br />E 0.5] fng k Cadmium <br />X7.51 n 1 c Chromium <br />�1-.6]me l-s Copper <br />X1.5] reel -c Cyanide <br />X1.6] Fng/rl Lead <br />X0.1] ffig"I [1.9 j mg/I n Nickel <br />X1.8] — /4-s Silver <br />X3.41 fng -z Zinc <br />(4) Significant Industrial Users (SIU) who have not been given an <br />allocation for one of the pollutants listed above shall notify the City of <br />South Bend at least 90 days in advance of a change in the characteristics of <br />their wastewater that would increase the expected concentration of that <br />pollutant in their wastewater discharge. In addition, the City may <br />determine at any time that an SIU wastewater discharge requires a <br />limitation for a pollutant, regardless of the concentration levels listed <br />below, and may then develop a limit based on the MAIL. In any case, SIU <br />discharge that is found to contain in excess of the following concentrations <br />will be reviewed for the need for a limit. The Director may require more <br />sensitive analysis when results are reported as less than the following <br />concentrations or less than greater concentrations: <br />Arsenic -0.2 mg/L <br />Cadmium -0.1 mWL <br />Chromium -2.0 mg/L <br />Copper -0.3 mg/L <br />Lead --0.3 mWL <br />