(a) The following pollutant limits are established in order to protect POTW, receiving water quality, worker health and safety, and improve opportunities for beneficial use of biosolids from nondomestic discharges.
Pollutant | Daily Maximum (mg/L) | Instantaneous Maximum (mg/L) |
Pollutant | Daily Maximum (mg/L) | Instantaneous Maximum (mg/L) |
Arsenic | 0.19 | 0.38 |
Cadmium | 0.024 | 0.048 |
Copper | 2.79 | 5.58 |
Lead | 1.06 | 2.12 |
Nickel | 1.52 | 3.04 |
Selenium | 0.19 | 0.38 |
Silver | 3.04 | 6.08 |
Zinc | 11.57 | 23.14 |
(b) The following pollutant limits are established in order to protect POTW, receiving water quality, worker health and safety, and improve opportunities for beneficial use of biosolids from nondomestic discharges. The following pollutant loading limits to the POTW shall not exceed the allowable total pounds. The mass allocation shall be imposed on significant industries of concern by their wastewater discharge permits.
Pollutant | Maximum Allowable Industrial Loading (MAIL) | Unit of Measure | Unit of Limit |
BOD | 20,692 | lbs/day | 30-day average |
Molybdenum | 6.17 | lbs/day | Daily |
TKN | 3,527 | lbs/day | 30-day average |
TSS | 15,095 | lbs/day | 30-day average |
(c) The above limits apply at the point where the wastewater is discharged into the POTW. All concentrations and limits for metallic substances are for “total” metal unless indicated otherwise. The manager may impose industry specific mass limitations in addition to or in place of the concentration-based limitations above. The manager may also develop site specific permit limits for pollutants that are specific to an individual user or user group.
(d) Liquid waste generators (LWG) in compliance with a valid LWG permit are exempt from the local limits listed in division (a) above.
(e) Liquid waste haulers in compliance with the revised ordinances and the liquid waste control program rules are exempt from local limits in division (a) above when servicing LWGs that are exempted in accordance with division (d) above.
(1992 Code, § 41-119.3) (Ord. 47-81, passed 6-1-1981; Ord. 23-86, passed 3-31-1986; Ord. 51-91, passed 6-3-1991; Ord. 57-93, passed 7-12-1993; Ord. 102-96, passed 9-3-1996; Ord. 56-12, passed 8-7-2012; Ord. 19-21, passed 2-16- 2021)