A. 
All users of the POTW will comply with all standards and requirements of the Act and standards and requirements promulgated pursuant to the Act, including but not limited to 40 CFR Parts 406 to 471, as amended.
A. 
General prohibitions.
(1) 
No user shall contribute or cause to be contributed, in any manner or fashion, directly or indirectly, any pollutant or wastewater which will interfere with the operation or performance of the POTW. These general prohibitions apply to all such users of a POTW whether or not the user is subject to National Categorical Pretreatment Standards, or any other federal, state, or local pretreatment standards or requirements.
B. 
Specific prohibitions.
(1) 
No user shall introduce or cause to be introduced into the POTW the following pollutants, substances, or wastewater:
(a) 
Any wastewater with a closed cup flashpoint of less than 140° F. or 60° C. using the test methods specified in 40 CFR 261.21, as amended;
(b) 
Any wastewater having a pH less than 5.0 or greater than 10.0, unless the POTW was specifically designed to manage such wastewater, or wastewater having any other corrosive property capable of causing damage or hazard to structures, equipment, and/or POTW personnel;
(c) 
Solid or viscous substances which may cause obstruction to the flow in a sewer or otherwise interfere with the operation of the wastewater treatment facilities. Unless explicitly allowable by a written permit, such substances include, but are not limited to, grease, garbage with particles greater than 1/2 inch in any dimension, flushable wipes, diapers, latex and other sanitary products, animal guts or tissues, paunch manure, bones, hair, hides or fleshings, entrails, whole blood, feathers, ashes, cinders, sand, spent lime, stone or marble dust, metal, glass, straw, shavings, grass clippings, rags, spent grains, spent hops, waste paper, wood, plastics, gas, tar asphalt residues, residues from refining or processing fuel or lubricating oil, mud, or glass or stone grinding or polishing wastes;
(d) 
Any wastewater containing toxic pollutants, including oxygen-demanding pollutants (BOD, etc.), in sufficient quantity, either singly or by interaction with other pollutants (including heat), to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, create a toxic effect in the receiving waters of the POTW, or to exceed the limitation set forth in a categorical pretreatment standard;
(e) 
Any solid, liquid, vapor, or gas having a temperature higher than 65° C. (150°F.); however, such materials shall not cause the POTW treatment plant influent temperature to be greater than 40° C. (104° F.). The Superintendent reserves the right, in certain instances, to prohibit or limit the discharge of wastes whose maximum temperatures are lower than 65° C.
(f) 
Any commercial, institutional, or industrial wastes containing fats, waxes, grease, or oils which become visible solids when the wastes are cooled to 10° C. (50° F.); any petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin, in excess of 100 mg/l or in amounts that will cause interference or pass through;
(g) 
Any 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;
(h) 
Trucked or hauled pollutants, except at discharge points designated by the Superintendent in accordance with this chapter;
(i) 
Any noxious or malodorous solids, liquids, or gases which either singly or by interaction with other wastes are sufficient to create a public nuisance or a hazard to life or are sufficient to prevent entry into the sewers for their maintenance or repair;
(j) 
Any wastewater with objectionable color which is not removed in the treatment process, such as, but not limited to, ink wastes, dye wastes, and vegetable tanning solutions;
(k) 
Any wastewater containing any radioactive wastes except as approved by the Superintendent, and in compliance with applicable state and federal regulations;
(l) 
Stormwater, surface water, groundwater, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, deionized water, noncontact cooling water, and unpolluted wastewater, unless specifically authorized by the Superintendent;
(m) 
Sludges, screenings, or other residues from the pretreatment of industrial wastes;
(n) 
Medical wastes, including pharmaceuticals and biohazardous products, except as specifically authorized by the Superintendent in an individual wastewater discharge permit;
(o) 
Wastewater causing, alone or in conjunction with other sources, the treatment plant's effluent to fail toxicity test;
(p) 
Detergents, surface active agents, ink wastes, or other substances which that might cause excessive foaming in the POTW, except as specifically authorized by the Superintendent;
(q) 
Any solids, liquids, or gases which, by reason of their nature or quantity, are or may be sufficient, either alone or by interaction with other substances, to cause a fire or an explosion or be injurious, in any way, to the POTW, or to the operation of the POTW. At no time shall both of two successive readings on a flame type explosion hazard meter, at the point of discharge into the system (or at any other point in the system) be more than 25% nor any single reading be more than 40% of the lower explosive limit (LEL) of the meter. Unless explicitly allowable by a written permit, prohibited materials include, but are not limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alcohols, carbides, hydrides, and sulfides, and any other substance which the Town, the state, or the USEPA has determined to be a fire hazard, or hazard to the POTW;
(r) 
Any wastewater which causes a hazard to human life or which creates a public nuisance, either by itself or in combination, in any way, with other wastes;
(s) 
Any wastewater which will cause interference or pass through;
(t) 
A toxic pollutant shall include, but not be limited to, any pollutant identified pursuant to Section 307(A) of the Act, as amended;
(u) 
Unusual flow rate or concentration of wastes, constituting slugs, except by individual wastewater discharge permit;
(v) 
Any hazardous waste as defined in 40 CFR 261, as amended.
A. 
Users must comply with the categorical pretreatment standards found at 40 CFR Chapter I, Subchapter N, Parts 405-471, as amended.
B. 
Where a categorical pretreatment standard is expressed only in terms of either the mass or the concentration of a pollutant in wastewater, the Superintendent may impose equivalent concentration or mass limits in accordance with this section.
C. 
When the limits in a categorical pretreatment standard are expressed only in terms of mass of pollutant per unit of production, the Superintendent may convert the limits to equivalent limitations expressed either as mass of pollutant discharged per day or effluent concentration for purposes of calculating effluent limitations applicable to individual industrial users.
D. 
When wastewater subject to a categorical pretreatment standard is mixed with wastewater not regulated by the same standard, the Superintendent shall impose an alternate limit in accordance with 40 CFR 403.6(e), as amended.
E. 
Once included in its permit, the industrial user must comply with the equivalent limitations developed in this section in lieu of the promulgated categorical standards from which the equivalent limitations were derived.
F. 
Many categorical pretreatment standards specify one limit for calculating maximum daily discharge limitations and a second limit for calculating maximum monthly average, or four-day average, limitations. Where such standards are being applied, the same production or flow figure shall be used in calculating both the average and the maximum equivalent limitation.
G. 
Any industrial user operating under a permit incorporating equivalent mass or concentration limits calculated from a production-based standard shall notify the Superintendent within two business days after the user has a reasonable basis to know that the production level will significantly change within the next calendar month. Any user not notifying the Superintendent of such anticipated change will be required to meet the mass or concentration limits in its permit that were based on the original estimate of the long term average production rate.
A. 
The Superintendent is authorized to establish local limits pursuant to 40 CFR 403.5(c), as amended.
B. 
Local limits may be established to protect against pass through and interference as deemed necessary by the Town of Farmington or the approval authority.
C. 
The above limits apply at the point where the wastewater is discharged to the POTW. The Superintendent may impose mass limitations in addition to the concentration based limitations herein.
A. 
No person shall discharge, directly or indirectly, into the POTW, wastewater containing any of the following substances in concentrations exceeding those specified below on either a daily or an instantaneous basis, except by permit or as provided for in § 125-79. Concentration limits are applicable to wastewater effluents at the point just prior to discharge into the POTW ("end of pipe" concentrations).
Effluent Concentration Limit - mg/L
Substance1
Allowable Maximum Instantaneous2
Aluminum
0.5
Antimony
0.07
Arsenic
0.005
Barium
0.16
Beryllium
0.002
Cadmium
0.011
Chlorides
500
Chlorine
0.025
Chromium (hexavalent)
0.25
Chromium (total)
0.25
Cobalt
0.025
Copper
0.2
Cyanide (total)
0.34
Iron
1.5
Lead
0.013
Manganese
0.08
Mercury
0.004
Molybdenum
0.024
Nickel
0.26
Phenols, total
0.05
Selenium
0.023
Silver
0.017
Sulfates
60
Sulfides
0.01
Vanadium
0.7
Zinc
0.16
NOTES:
1
Except for chromium (hexavalent), all concentrations listed for metallic substances shall be as "total metal," which shall be defined as the value measured in a sample acidified to a pH value of two or less, without prior filtration.
2
As determined on a grab or composite sample taken from the user's daily discharge.
B. 
Other substances which may be limited are:
(1) 
Alkanes, alkenes and alkynes.
(2) 
Aliphatic and aromatic alcohols and acids.
(3) 
Aliphatic and aromatic aldehydes and ketones.
(4) 
Aliphatic and aromatic esters.
(5) 
Aliphatic and aromatic halogenated compounds.
(6) 
Aliphatic and aromatic nitro, cyano and amino compounds.
(7) 
Antibiotics.
(8) 
Benzene derivatives.
(9) 
Chemical compounds which, upon acidification, alkalinization, oxidation or reduction, in the discharge or after admixture with wastewater and its components in the POTW, produce toxic, flammable, or explosive compounds.
(10) 
Pesticides, including algicides, fungicides, herbicides, insecticides, rodenticides.
(11) 
Phthalates.
(12) 
Polyaromatic and polynuclear hydrocarbons.
(13) 
Total toxic organics (TTO), as defined in 40 CFR 433.11, as amended.
(14) 
Toxic organic compounds regulated by federal pretreatment standards.
(15) 
Unsaturated aliphatics, including those with an aldehyde, ketone or nitrile functional group.
(16) 
Viable pathogenic organisms from industrial processes or hospital procedures.
A. 
(Reserved)
B. 
The Superintendent shall determine the total allowable influent load of each substance from significant industrial users.
(1) 
In determining the total load of each substance that significant industrial users shall be allowed to discharge, the Superintendent shall consider:
(a) 
The quantities of each substance that are uncontrollable because they occur naturally in wastewater;
(b) 
The quantities of each substance that are anthropogenic but are nonetheless uncontrollable;
(c) 
Historical discharge trends;
(d) 
Past pollution control efforts of each significant industrial user as compared to other significant industrial dischargers of the same substance;
(e) 
Potential for growth in the POTW service area;
(f) 
Potential for more restrictive regulatory requirements to be placed on the POTW discharge or sludge disposal or sludge reuse method; and
(g) 
Treatability of the substance. The superintendent shall apply a minimum 15% safety factor to be protective of the POTW.
(h) 
To assure that the total loads so calculated, for each substance, are not violated, the Superintendent shall issue permits to significant industrial users limiting discharge loads.
(i) 
Permits issued in accordance with this section may allow for discharges in excess of limitations set forth under § 125-75.
A. 
The Town of Farmington reserves the right to establish, by revision to this chapter or in individual wastewater discharge permits, more stringent standards or requirements on discharges to the POTW consistent with the purpose of this chapter.
A. 
Limitations on wastewater strength or mass discharge contained in this chapter may be supplemented with more stringent limitations when, in the opinion of the Superintendent:
(1) 
The limitations in this chapter are not sufficient to protect the POTW;
(2) 
The limitations in this chapter are not sufficient to enable the POTW treatment plant to comply with applicable water quality standards or the effluent limitations specified in the POTW's SPDES permit;
(3) 
The POTW sludge will be rendered unacceptable for disposal or reuse as the Town desires, as a result of discharge of wastewaters at the above prescribed concentration limitations;
(4) 
Municipal employees or the public will be endangered; or
(5) 
Air pollution and/or groundwater pollution will be caused.
B. 
The limitations on wastewater strength or mass discharge shall be recalculated as deemed necessary by the Superintendent. The results of these calculations shall be reported to the Town Board. If any recalculated limitations should require changes in limitations included in previously issued individual wastewater discharge permits, such permits shall be revised and amended, as appropriate.
A. 
The Superintendent shall have the authority to copy any record related to wastewater discharges to the POTW.
A. 
No user shall increase the use of process water or, in any other 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 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.
B. 
Dilution flow shall be considered to be inflow.