(A) To implement the general and specific discharge prohibitions listed in this chapter, industrial user-specific local limits will be developed, ensuring that the POTW's maximum allowable headworks loading is not exceeded for particular pollutants of concern for each industrial user. Where specific local limits are not contained for a given parameter or pollutant in an industrial user permit, the following average discharge limits will apply to all users:
200 mg/l | FOG (Fat, Oils, Grease) |
20 mg/l | NH3-N (Ammonia-Nitrogen) |
250 mg/l | TSS (Total Suspended Solids) |
0.003 mg/l | As (Arsenic) |
0.003 mg/l | Cd (Cadmium) |
0.061 mg/l | Cu (Copper) |
0.015 mg/l | CN (Cyanide) |
0.049 mg/l | Pb (Lead) |
0.0003 mg/l | HG (Mercury) |
0.021 mg/l | Ni (Nickel) |
0.005 mg/l | Ag (Silver) |
0.05 mg/l | Total Cr (Chromium) |
0.175 mg/l | Zn (Zinc) |
0.1 mg/l | Phenolic Compounds |
0.25 mg/l | Total Identifiable Chlorinated Hydrocarbons |
(B) Industrial user-specific local limits for appropriate pollutants of concern shall be included in wastewater permits and are considered pretreatment standards. The Superintendent or Director may impose mass limits in addition to, or in place of, the concentration-based limits above.
(Ord. passed 11-8-94; Am. Ord. 2008-05-02, passed 5-5-08; Am. Ord. 2013-04-01, passed 4-1-13; Am. Ord. 2018-07-07, passed 7-16-18)