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(A) General provisions. No person 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 federal, state, or local pretreatment standards or requirements.
(B) Specific prohibitions. No person 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, wastestreams with a closed-cup flashpoint of less than 140 ° F (60° C) using the test methods specified in 40 C.F.R. 261.21;
(2) Wastewater having a pH less than 5.0 or more than 11.0, or otherwise causing corrosive structural damage to the POTW or equipment;
(3) Solid or viscous substances in amounts that will cause obstruction of the flow in the POTW resulting in interference, such as, but not limited to: ashes, cinders, egg shells, sand, mud, straw shavings, metal, glass, rags, feathers, tar, plastics, wood, whole blood, paunch manure, hair, hides or fleshings, entrails, lime slurry, lime residues, slops, chemical residues, paint residues, bulk solids, garbage with particles greater than one-half inch, and any water or waste containing gas, grease or oil, plastic, or any other substance that will solidify or become discernibly viscous at temperatures above 0° C;
(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 150° 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 in oil, non biodegradable 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 Control Authority;
(9) Any liquids, gases, solids, or other wastewater which either singly or by interaction with other wastes, are 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 federal or state regulations and approved by the Control Authority;
(12) Storm water, surface water, ground water, artesian well water, roof runoff, subsurface drainage, condensate, deionized water, noncontact cooling water, or unpolluted wastewater;
(13) Sludges, screenings, or other residues from the pretreatment of industrial waste;
(14) Medical wastes which are deemed by the Control Authority to have the potential to cause acute worker health or safety problems;
(15) Wastewater causing, alone or in conjunction with other sources, the POTW to violate its NPDES permit or the treatment plant's effluent to fail a toxicity test;
(16) Any substance which may cause the POTW's effluent or other product of the POTW such as residues, biosolids (sludges) or scums, to be unsuitable for normal landfill/land application, reclamation or reuse, or to interfere with the reclamation process;
(17) Detergents, surface-active agents, or other substances which may cause excessive foaming in the POTW;
(18) Any material into a manhole through its top unless specifically authorized by the Control Authority.
(C) Discharges. 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.
(Ord. 2005-8-226, passed 8-2-05; Am. Ord. 2007-06-291, passed 6-5-07)
No unauthorized person shall maliciously, willfully, or negligently break, damage, destroy, uncover, deface, or tamper with any structure, appurtenance, or equipment which is a part of the sewage works. Any person violating this provision shall be subject to immediate arrest under charge of disorderly conduct.
(Ord. 2005-8-226, passed 8-2-05)
The categorical pretreatment standards found at 40 C.F.R. Chapter I, Subchapter N, Parts 405-471 are hereby incorporated.
(A) Where a categorical pretreatment standard is expressed only in terms of either the mass or the concentration of a pollutant in wastewater, the Control Authority may impose equivalent concentration or mass limits in accordance with 40 C.F.R. 403.6(c).
(B) When wastewater subject to a categorical pretreatment standard is mixed with wastewater not regulated by the same standard, the Control Authority shall impose an alternate limit using the combined wastestream formula in 40 C.F.R. 403.6(e).
(C) A user may obtain a variance from a categorical pretreatment standard if the user can prove, pursuant to the procedural and substantive provisions to 40 C.F.R. 403.13, that factors relating to its discharge are fundamentally different from the factors considered by EPA when developing the categorical pretreatment standard.
(D) A user may obtain a net gross adjustment to a categorical standard in accordance with 40 C.F.R. 403.15.
(Ord. 2005-8-226, passed 8-2-05; Am. Ord. 2007-06-291, passed 6-5-07)
Local limits will be established if required, to insure that the maximum allowable headworks loadings to the wastewater treatment facility are not exceeded. No person shall discharge wastewater containing in excess of the instantaneous maximum allowable discharge limits except by permit from the Control Authority. The Control Authority may revise or modify the local limits as required, or if deemed necessary to comply with the objectives presented in this chapter or the general and specific prohibitions in this chapter or to insure compliance with federal, state, or local law.
(Ord. 2005-8-226, passed 8-2-05)
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 Control Authority may impose mass limitations on users which are using dilution to meet applicable pretreatment standards or requirements, or in other cases when the imposition of mass limitations is appropriate.
(Ord. 2005-8-226, passed 8-2-05)
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