State pretreatment standards located at Title 35, Subtitle C,
Chapter I, Part 302, are hereby incorporated by reference.
[Amended 9-6-2022 by Ord. No. 7857]
The following pollutant limits are established to protect against
pass-through and interference. No person shall discharge wastewater
containing in excess of the following instantaneous maximum allowable
discharge limits:
Discharge Limit
(mg/l)
|
Pollutant
|
---|
26
|
Ammonia nitrogen
|
0.1
|
Arsenic
|
24.0
|
Barium
|
0.1
|
Cadmium
|
2225
|
Chloride
|
0.3
|
Chromium (Hex)
|
8.5
|
Chromium (Tot)
|
0.5
|
Copper
|
0.3
|
Cyanide
|
7.0
|
Fluoride
|
20.0
|
Iron
|
0.6
|
Lead
|
40
|
Manganese
|
0.4
|
Molybdenum
|
0.0005
|
Mercury
|
0.3
|
Nickel
|
11.0
|
Phenols
|
1.3
|
Selenium
|
0.25
|
Silver
|
2500
|
Sulfate
|
1.0
|
Zinc
|
100
|
Fats, oil and grease (FOG) (mineral or petroleum origin)
|
200
|
Fats, oil and grease (FOG) (food origin)
|
236
|
Biochemical oxygen demand (BOD)
|
272
|
Total suspended solids (TSS)
|
10
|
Phosphorus, total (as P)
|
Note: Discharge limit for pH (5.0 - 9.5) Standard Units (SU).
|
A. The above limits apply at the end of pipe where the wastewater is
discharged to the POTW. All concentrations for metallic substances
are for total metals unless indicated otherwise. The Superintendent,
or his/her designee, may impose mass limitations in addition to, or
in place of, the concentration-based limitations above. In any case,
the most stringent requirement and limitation of federal or state
laws or of this chapter shall apply.
B. The Superintendent may develop best management practices (BMPs), by ordinance or in individual wastewater discharge permits, to implement sewer use/local limits and the requirements of Article
II, §
435-5.
C. Food service establishment (FSE) survey. All new FSE shall complete a FSE survey on a form developed by the City as part of the development approval and permitting process. The survey shall ensure that food service establishments using the POTW of the City adhere to and comply with the restrictions and prohibitions pertaining to pretreatment standards of wastes discharged into the POTW of the City set forth in §
435-5 and to control spills of raw materials, intermediates and waste as set forth in §
435-13 of this article, and shall facilitate the City's investigation of apparent or suspected violations thereof. The requirements for the FSE Survey are as follows:
(1) When requested by the City, existing FSEs shall complete and submit
a FSE survey.
(2) All new FSEs that establish a new account for sanitary sewer service
or those that transfer an existing FSE account in the City shall file
a completed FSE survey with the City as a condition to the establishment
of such new or transferred sanitary sewer service account or connection
to the POTW of the City.
(3) The survey shall contain a statement affirming the truth, completeness and correctness of information submitted signed by an authorized representative of the user as defined in §
435-4.
No user shall ever increase the use of process water, or in
any way attempt to dilute a discharge, as a partial or complete substitute
for adequate treatment to achieve compliance with a discharge limitation
unless expressly authorized by an applicable pretreatment standard
or requirement. The Superintendent or his/her designee may impose
mass limitations on users who are using dilution to meet applicable
pretreatment standards or requirements or in other cases when the
imposition of mass limitations is appropriate.