(A) An industrial waste survey is required prior to a user discharging wastewater containing in excess of the following daily average discharge limits. The limit duration should be defined in § 15-122:
175 mg/l | BOD |
200 mg/l | TSS |
40 mg/l | TKN |
0.003 mg/l | arsenic |
0.005 mg/l | cadmium |
0.061 mg/l | copper |
0.04 mg/l | cyanide |
0.05 mg/l | lead |
0.0003 mg/l | mercury |
0.06 mg/l | nickel |
0.005 mg/l | silver |
0.05 mg/l | total chromium |
0.2 mg/l | zinc |
(B) (1) Industrial waste survey information will be used to develop user-specific local limits when necessary to ensure that the POTW’s maximum allowable headworks loading is not exceeded for particular pollutants of concern.
(2) User specific local limits for appropriate pollutants of concern shall be included in wastewater permits. The POTW Director may impose mass limits in addition to, or in place of, concentration based limits.
(Ord. passed 5-17-94; Am. Ord. passed 10-20-09)