The pollutant limits that follow are established to help achieve the Pretreatment Program objectives specified in PCC 13.06.010. Unless otherwise allowed, no person shall discharge wastewater containing in excess of the following daily maximum allowable discharge limits.

The above limits apply at the point where the wastewater is discharged to the POTW (end of the pipe). All concentrations for metallic substances are for the "total" metal unless otherwise stated. The instantaneous maximum concentrations shall not exceed twice the above values.

The Manager may impose mass limitations in addition to, or in place of, the concentration-based limitations above: (1) where necessary for consistency with Federal Categorical Pretreatment Standards; (2) where mass limits are more appropriate; (3) where concentration limits are impractical to apply; or (4) where dischargers whose wastes, by their dilute nature, meet the pretreatment standards or requirements of these Regulations, but would have adverse effects on the POTW.

Where a user is subject to a categorical pretreatment standard and a local limit for a given pollutant, the more stringent limit or applicable pretreatment standard shall apply.

Users whose discharge exceeds 225 mg/l BOD and/or 225 mg/l TSS must obtain authorization from the Manager prior to discharge, and are subject to the BOD and TSS surcharges established in Chapter 13.13 PCC.