(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 limits will apply to all users:
BOD 250 mg/l
TSS 250 mg/l
TKN 40 mg/l
Arsenic 0.003 mg/l
Cadmium 0.003 mg/l
Copper 0.061 mg/l
Cyanide 0.041 mg/l
Lead 0.049 mg/l
Mercury 0.0003 mg/l
Nickel 0.021 mg/l
Oil & Grease 100.0 mg/l
Silver 0.005 mg/l
Total Chromium 0.05 mg/l
Zinc 0.175 mg/l
(B) Industrial user-specific local limits for appropriate pollutants of concern shall be included in wastewater permits and are considered pretreatment standards. The Board may impose mass limits in addition to, or in place of, the concentration-based limits above.
(Ord. 2005-01-01, passed 2-21-05)