(A) The following pollutant limitations are established to protect against pass through and interference. No person shall discharge wastewater containing in excess of the following daily maximum concentrations.
Daily Maximum Limitations
|
Daily Maximum Limitations
| |
Arsenic (total) | 0.10 mg/l |
BOD5 | 500 mg/l |
Cadmium (total) | 0.3 mg/l |
COD5 | 1,000 mg/l |
Copper2 | 0.23 mg/l |
Cyanide (total)1 | 0.19 mg/l |
Hex. Chromium1 | 0.28 mg/l |
Lead (total)1 | 0.32 mg/l |
Mercury (total)1 | 0.007 mg/l |
Molybdenum2 | 0.01 mg/l |
Nickel1 | 5.0 mg/l |
Oil and grease | 100 mg/l |
Phenols | 1.0 mg/l |
Selenium2 | 0.013 mg/l |
Silver1 | 0.30 mg/l |
Total Chromium1 | 5.0 mg/l |
Total suspended solids | 500 mg/l |
Zinc (total)1 | 1.9 mg/l |
(B) The above limits apply at the point where the wastewater is discharged to the POTW. All concentrations for metallic substances are for “total” metal unless indicated otherwise. The Superintendent may impose mass limitations in addition to, or in place of, the concentration-based limitations above.
(C) Upon the promulgation of the National Categorical Pretreatment Standard (NCPS) for a particular user, the said standard, if more stringent than the limitations imposed under this chapter for sources in that category, shall, when effective, immediately supersede the limitations and conditions imposed under this chapter. The Wastewater Superintendent shall notify all known affected users of the applicable permitting and reporting requirements under 40 C.F.R. § 403.12.
(Prior Code, § 50.20(2.4)) (Ord. 2020-6, passed 4-21-2020) Penalty, see § 54.999