A. 
General prohibitions. No user shall introduce or cause to be introduced into the POTW any pollutant or wastewater which causes pass-through or interference. These general prohibitions apply to all users of the POTW, whether or not they are subject to categorical pretreatment standards or any other national, state, or local pretreatment standards or requirements.
B. 
Specific prohibitions. No user shall introduce or cause to be introduced into the POTW the following pollutants, substances, or wastewater:
(1) 
Pollutants which create a fire or explosive hazard in the POTW, including, but not limited to, waste-streams with a closed-cup flashpoint of less than 140° F. (60° C.) using the test methods specified in 40 CFR 261.21;
(2) 
Wastewater having a pH less than 5.0 or more than 9.5, or otherwise causing corrosive structural damage to the POTW or equipment;
(3) 
Solid or viscous substances in amounts which will cause obstruction of the flow in the POTW resulting in interference (but in no case solids greater than one-half inch in any dimension);
(4) 
Pollutants, including oxygen-demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which, either singly or by interaction with other pollutants, will cause interference with the POTW;
(5) 
Wastewater having a temperature greater than 149° F. (65° C.), or which will inhibit biological activity in the treatment plant resulting in interference, but in no case wastewater which causes the temperature at the introduction into the treatment plant to exceed 104° F. (40° C.);
(6) 
Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass-through;
(7) 
Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems;
(8) 
Trucked or hauled pollutants, except at discharge points designated by the Superintendent, or his/her designee, in accordance with § 435-14 of this chapter;
(9) 
Noxious or malodorous liquids, gases, solids, or other wastewater which, either singly or by interaction with other wastes, is sufficient to create a public nuisance or a hazard to life, or to prevent entry into the sewers for maintenance or repair;
(10) 
Wastewater which imparts color which cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently imparts color to the treatment plant's effluent, thereby violating the POTW's NPDES permit;
(11) 
Wastewater containing any radioactive wastes or isotopes except in compliance with applicable state or federal regulations;
(12) 
Stormwater, surface water, groundwater, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, de-ionized water, noncontact cooling water, and unpolluted wastewater, unless specifically authorized by the Superintendent or his/her designee;
(13) 
Sludge, screenings, or other residues from the pretreatment of industrial wastes;
(14) 
Medical wastes, except as specifically authorized by the Superintendent or his/her designee, in a wastewater discharge permit;
(15) 
Wastewater causing, alone or in conjunction with other sources, the treatment plant's effluent to fail a toxicity test;
(16) 
Detergents, surface-active agents, or other substances which may cause excessive foaming in the POTW;
(17) 
Fats, oils, or greases of animal or vegetable origin in concentrations greater than 200 mg/l; and mineral or petroleum oils in concentrations greater than 100 mg/l; or
(18) 
Wastewater causing two readings on an explosion hazard meter at the point of discharge into the POTW of more than 5% or any single reading over 10% of the lower explosive limit of the meter.
C. 
Pollutants, substances, or wastewater prohibited by this section shall not be processed or stored in such a manner that they could be discharged to the POTW.
A. 
The categorical pretreatment standards found at 40 CFR Chapter I, Subchapter N, Parts 405 through 471, are hereby incorporated.
(1) 
Where a categorical pretreatment standard is expressed only in terms of either the mass or the concentration of a pollutant in wastewater, the Superintendent, or his/her designee, may impose equivalent concentration or mass limits in accordance with 40 CFR 403.6(c).
(2) 
When wastewater subject to a categorical pretreatment standard is mixed with wastewater not regulated by the same standard, the Superintendent or his/her designee shall impose an alternate limit using the combined waste stream formula in 40 CFR 403.6(e).
(3) 
A user may obtain a variance from a categorical pretreatment standard if the user can prove, pursuant to the procedural and substantive provisions in 40 CFR 403.13, that factors relating to its discharge are fundamentally different from the factors considered by the EPA when developing the categorical pretreatment standard.
(4) 
A user may obtain a net gross adjustment to a categorical standard in accordance with 40 CFR 403.15.
B. 
Note: The Federal Effluent Limit Guidelines (ELGs) are incorporated into the SUO, and all indirect dischargers must comply with the ELGs.
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.
A. 
The City of Crystal Lake reserves the right to establish, by ordinance or general wastewater discharge permits, more stringent standards or requirements on discharges to the City's POTW consistent with the purpose of this chapter. The specific limitations on discharge listed in Article II, § 435-8 are derived from the maximum allowable industrial loading (MAIL) calculation. The MAILs are allocated only to those IUs, at the City's discretion, that contribute the regulated pollutant and all remaining IUs are held to either the background concentration or slightly higher than background but lower than the specific discharge limit. In no case shall all allocations exceed the MAIL.
B. 
The City of Crystal Lake will maintain a reserve of the maximum allowable headworks pollutant loading for each pollutant for new industries or increase with existing industries. The City will recalculate the maximum concentrations from time to time using site-specific data, taking into consideration revisions to state and federal regulations that may impact the calculations.
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.