The following pollutant limits are established to protect against pass through and interference. No person shall discharge wastewater containing in excess of the following instantaneous maximum allowable discharge limits:
Pollutant | Maximum Limits (mg/l) | |
Daily | Monthly Average | |
Pollutant | Maximum Limits (mg/l) | |
Daily | Monthly Average | |
Ammonia-N (NH3-N) | * | * |
Arsenic | 25.00 | 15.00 |
CBOD5 | * | * |
COD | * | * |
Cadmium (Cd) | 1.30 | 0.70 |
Hexavalent chromium (Cr+6) | 1.00 | 0.50 |
Chromium (Cr) total | 10.00 | 5.00 |
Copper (Cu) | 4.00 | 1.70 |
Cyanide (CN-) total | 1.90 | 1.70 |
Lead (Pb) | 5.00 | 1.00 |
Mercury (Hg) | 0.200 | 0.100 |
Molybdenum (Mo) | 1.00 | 0.50 |
Nickel (Ni) | 5.00 | 1.00 |
Oil and grease | 100.00 | -- |
Selenium (Se) | 0.50 | 0.10 |
Silver (Ag) | 1.00 | 0.50 |
TSS | * | * |
Zinc (Zn) | 10.00 | 5.00 |
Total toxic organics (TTOs) | 1 ** | 1 ** |
Notes to table: * Refer to § 50.020 ** There shall be no unpermitted discharges of TTOs to the POTW | ||
(Ord. 02-09, passed 5-28-02)