A. National Categorical Pretreatment Standards: National categorical pretreatment standards promulgated by the U.S. environmental protection agency (EPA) pursuant to the act shall be met by all users which are subject to such standards in any instance where they are more stringent than the limitations in this chapter.
B. State Requirements: State requirements and limitations on discharges shall be met by all users who are subject to such standards in any instance in which they are more stringent than federal requirements and limitations or those in this or any other applicable section of this code.
C. City's Right Of Revision: The city reserves the right to establish by ordinance more stringent limitations or requirements on discharges to the wastewater disposal system if deemed necessary to comply with the objectives stated in section 8-2-1 of this chapter.
D. Dilution: No user shall increase the use of process water or, in any way, attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with the limitations contained herein, contained in the national categorical pretreatment standards, or contained in any state requirements.
E. Supplemental Limitations: The BPUC may impose additional specific limitations on any wastewater that is to be discharged into the city's wastewater disposal system.
F. Specific Local Discharge Limitations: No person, except as authorized pursuant to a compliance schedule in a permit, shall discharge or cause or allow to be discharged into public sewers any waste that causes the total facility discharge to exceed the following concentration limitations and mass loading limitations:
Pollutant | Per Load Grab Sample mg/l | Monthly Average mg/l | Maximum For One Day-mg/l | Cumulative Mass Discharge Pounds/Semiannual | Cumulative Mass Discharge Lbs/Year |
Pollutant | Per Load Grab Sample mg/l | Monthly Average mg/l | Maximum For One Day-mg/l | Cumulative Mass Discharge Pounds/Semiannual | Cumulative Mass Discharge Lbs/Year |
Cadmium (Cd) | 0.26 | 0.26 | 0.69 | - | - |
Chromium, total (Cr) | 1.71 | 1.71 | 2.77 | - | - |
Copper (Cu) | 2.07 | 2.07 | 3.38 | - | - |
Cyanide, total (Cn) | 0.65 | 0.65 | 1.20 | - | - |
Lead (Pb) | 0.4 | 0.4 | 0.69 | ||
Nickel (Ni) | 1.0 | 1.0 | 1.75 | 50 | 100 |
Zinc (Zn) | 1.49 | 1.49 | 2.61 | - | - |
Industrial User | |||||
BOD | - | 210 | - | - | - |
TSS | - | 235 | - | - | - |
Liquid Waste | |||||
Haulers | |||||
BOD and TSS | 10,000 | - | - | - | - |
Semiannual mass loading periods will be from May 1 to October 31, and November 1 to April 30.
(2002 Code)