The following pollutant limits are established to protect against pass through and
interference. No person shall discharge or cause or permit to be discharged, wastewater
containing in excess of the following maximum allowable discharge limits in the following
system(s):
0.2 mg/L
arsenic
0.1 mg/L
cadmium
2.9 mg/L
chromium
2.3 mg/L
copper
0.5 mg/L
cyanide
0.9 mg/L
lead
0.0004 mg/L
mercury
0.8 mg/L
molybdenum
4.6 mg/L
nickel
200.0 mg/L
oil and grease
0.1 mg/L
selenium
0.8 mg/L
silver
8.0 mg/L
zinc
2.13 mg/L
TTO
5.5 to 11.0
standard units of pH
The above limits apply at the point where the wastewater is discharged to the POTW.
All concentrations for metallic substances are for "total" metal unless indicated
otherwise. The regulatory authority may impose mass limitations in addition to, or
in place of, the concentration-based limitations above.