A. The following are the standards established by the board of trustees pursuant to the authority granted by subsection 8-2-5-5B of the Sewer Use and Pretreatment Ordinance. No user shall discharge any wastewater containing concentrations greater than the local limits as set forth below into any sewers that connect either directly or indirectly to the POTW. Multiple industrial discharges from a permitted facility may be combined with the following limitations upon approval by the POTW.
Pollutant (total unless otherwise listed) | Concentration (mg/l) | |
Daily Maximum | Instantaneous | |
Pollutant (total unless otherwise listed) | Concentration (mg/l) | |
Daily Maximum | Instantaneous | |
Arsenic | 0.1 | |
Cadmium | 0.1 | |
Chromium | 8.5 | |
Chromium (hexavalent) | 0.3 | |
Copper | 1.0 | |
Cyanide | 0.3 | |
Lead | 0.6 | |
Mercury | 0.0005 | |
Nickel | 0.7 | |
Selenium | 1.3 | |
Silver | 0.5 | |
Zinc | 1.3 | |
B. Individual wastewater discharge permits identify requirements for testing of these pollutants. (Ord. 20-08-25, 8-10-2020)