(A) The Public Works Director is authorized to establish local limits pursuant to 40 C.F.R. 403.5(c).
(B) The following pollutant limits are established to protect against pass through and interference. No person shall discharge wastewater containing in excess of the following:
Pollutant
| Daily Maximum (milligrams per liter) |
Pollutant
| Daily Maximum (milligrams per liter) |
Arsenic | 0.70 |
Cadmium | 0.02 |
Chromium, total | 2.00 |
Chromium, hexavalent | 0.60 |
Copper | 0.21 |
Cyanide, free | 0.37 |
Lead | 0.15 |
Mercury | 0.004 |
Nickel | 2.00 |
Selenium | 0.24 |
Silver | 0.11 |
Zinc | 3.50 |
(C) 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 Public Works Director may impose mass limitations in addition to the concentration based limited above.
(D) Public Works Director may develop best management practices (BMPs), by ordinance or in individual wastewater discharge permits, to implement local limits and the requirements of § 50-164.
(Ord. 2013-17, passed 9-9-2013; Ord. 2014-03, passed 3-24-2014)