Sec. 24-123. - Local limits.
   (a)   An industrial waste survey is required prior to a user discharging wastewater containing in excess of the following average discharge limits.
BOD 5  
250 mg/l
COD
500 mg/l
TSS
250 mg/l
Fats, Oils, and Grease
100 mg/l
T.D.S.
1,000 mg/l
Total Nitrogen
40 mg/l
Total Phosphorus
8 mg/l
Arsenic
0.003 mg/l
Cadmium
0.003 mg/l
Copper
0.061 mg/l
Cyanide
0.015mg/l
Lead
0.049 mg/l
Mercury
0.0003 mg/l
Nickel
0.021 mg/l
Silver
0.005 mg/l
Chromium(total)
0.05 mg/l
Zinc
0.175 mg/l
Ammonia
25 mg/l
 
   (b)   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. User-specific local limits for appropriate pollutants of concern shall be included in wastewater permits. The director may impose mass based limits in addition to or in place of concentration based limits.
(Ord. of 10-1-1996, § 2.3; Amend. of 3-3-2008(3); Ord. of 3-4-2013)