All sewage service customers are prohibited from discharging above the following concentrations at any time unless a higher concentration limit for that specific user is established and incorporated into that user’s wastewater contribution permit. The Mayor may apply and enforce alternative concentration limits to categorical SIU’s which are subject to either production based standards or the combined wastestream formula.
Substances
|
Milligrams per Liter
|
Substances
|
Milligrams per Liter
|
(A) Arsenic | 0.32 |
(B) Cadmium | 0.014 |
(C) Total chromium | 1.71 |
(D) Chromium, Hexavalent | 0.59 |
(E) Copper | 1.05 |
(F) Cyanide, Total | 0.04 |
(G) Lead | 0.24 |
(H) Mercury | 0.001 |
(I) Nickel | 1.83 |
(J) Selenium | 0.10 |
(K) Silver | 0.24 |
(L) Zinc | 1.48 |
(M) Hydrocarbon based greases and/or oils, whether emulsified or not | 100.00 |
(N) Oil and grease if of animal or vegetable origin | 100.00 |
(‘74 Code § 27-108) (Ord. passed 1-16-78; Am. Ord. passed 5-2-83; Am. Ord. passed 9-2-86; Am. Ord. passed 6-20-88; Am. Ord. passed 7-1-91; Am. Ord. passed 8-19-91; Am. Ord. 2002-01A, passed 1-21-02; Am. Ord. 08-14, passed 9-18-08; Am. Ord. 2015-02, passed 2-17-15; Am. Ord. O-2016-8, passed 3-21-16; Am. Ord. O-2021-15, passed 12-20-21)