[Ord. of 8-3-1981, § 15[1]]
(a) 
No person shall discharge or cause to be discharged any unpolluted waters such as stormwater, groundwater, roof runoff, subsurface drainage, or cooling water to any sanitary sewer.
(b) 
Stormwater and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as combined sewers or storm sewers and discharged to a watercourse in accordance with all applicable state and federal laws and regulations.
[1]
Editor's Note: This ordinance also repealed former Sections 23-53 through 23-60, adopted 4-2-1973, which contained provisions on the used of public sewers.
[Ord. of 8-3-1981, § 16]
No user shall contribute or cause to be contributed, directly or indirectly, any pollutant or wastewater which will interfere with the operation or performance of the WPCF. These general prohibitions apply to all such users of a WPCF whether or not the user is subject to national categorical pretreatment standards or any other federal or state pretreatment standards or requirements. A user shall not contribute the following substances to any WPCF:
(a) 
Any liquids, solids 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 fire or explosion or be injurious in any other way to the WPCF or to the operation of the WPCF. At no time shall two successive readings on an explosion hazard meter, at the point of discharge into the sewage collection system (or at any point in the system) be more than 5% nor any single reading over 10% of the lower explosive limit (LEL) of the meter.
(b) 
Solids or viscous substances which may cause obstruction to the flow in a sewer or other interference with the operation of the WPCF, including substances such as, but not limited to, greases, garbage with particles greater than 1/2 inch in any dimension, 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, wastepaper, wood, plastics, gas, tar, asphalt residues, residues from refining or processing of fuel or lubricating oil, mud or glass grinding or polishing wastes.
(c) 
Any sewage having a pH lower than 5.5, or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the WPCF. The upper limit of pH for any industrial wastewater discharge shall be established under the discharger's state discharge permit.
(d) 
Any sewage containing toxic pollutants insufficient quantity, either singly or by interaction with other pollutants, to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals or plant life, create a toxic effect in the receiving waters of the WPCF, or to exceed the limitation set forth in a categorical pretreatment standard. A toxic pollutant shall include, but not be limited to, any pollutant identified pursuant to Section 307(a) of the Act.
(e) 
Any noxious or malodorous sewage, gases or solids which either singly or by interaction with other sewage are sufficient to prevent entry into the public sewers for their maintenance and repair.
(f) 
Any sewage which, by interaction with other sewage in the public sewer releases obnoxious gases, forms suspended solids which interfere with the collection system, or creates a condition which may be deleterious to structures and treatment processes or which may cause the effluent limitations of the WPCF's NPDES permit to be exceeded.
(g) 
Any substance which may cause the WPCF's effluent or any other product of the WPCF such as residues, sludges or scums, to be unsuitable for reclamation process where the WPCF is pursuing a reuse and reclamation program. In no case, shall a substance discharged to the WPCF cause the facility to be in noncompliance with sludge use or disposal criteria, guidelines, or regulations developed under Section 405 of the Act; any criteria, guidelines or regulations affecting sludge use or disposal developed pursuant to the Resource Conservation Clean Air Act, the Toxic Substance Control Act, or state criteria applicable to the sludge management method being used.
(h) 
Any substance which will cause a WPCF to violate its NPDES permit or the receiving water quality standards.
(i) 
Sewage containing substances which are not amenable to treatment or reduction by the wastewater treatment process employed, or are amenable to treatment only to such degree that the water pollution control facility effluent cannot meet the limits stipulated in the City of Milford's NPDES permit.
[Ord. of 8-3-1981, § 17]
The following described substances, materials, waters or waste shall be limited in discharges to public sewers to concentrations or quantities which will not harm either the sewers or the water pollution control facility, will not have an adverse effect on the receiving stream, or will not otherwise endanger public property or constitute a nuisance. The Commissioner may set lower limitations if more severe limitations are necessary to meet the water quality standards of the receiving stream. The limitations or restrictions on materials or characteristics of sewage discharged to the public sewer are as follows:
(a) 
Sewage having a temperature higher than 150° F. (65° C.).
(b) 
Sewage containing fat, wax, grease, petroleum, or mineral oil, whether emulsified or not, in excess 100 mg/l with floatable oil not to exceed 20 mg/l or containing substances which may solidify or become viscous at temperatures between 32° and 150° F. (0° and 65° C.).
(c) 
Any garbage that has not been properly shredded. Garbage grinders may be connected to sanitary sewers from homes, hotels, institutions, restaurants, hospitals, catering establishments, or similar places where garbage originates from the preparation of food in kitchens for the purpose of consumption on the premises or when served by caterers.
(d) 
Any sewage containing odor-producing substances exceeding limits which may be established by the Commissioner.
(e) 
Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the Commissioner in compliance with all applicable state and federal regulations.
(f) 
Materials which exert or cause:
(1) 
Unusual concentrations of inert suspended solids (such as, but not limited to, sodium chloride and sodium sulfate);
(2) 
Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions);
(3) 
Unusual BOD, chemical oxygen demand, or chlorine demand in such quantities as to constitute a significant load on the water pollution control facility;
(4) 
Unusual volume of flow or concentrations of wastes constituting a "slug" as defined in Section 23-12.
(g) 
Overflow from holding tanks or other receptacles storing organic wastes.
(h) 
Sewage with a concentration of pollutants in excess of the following limits:
Pollutant
Concentration
(parts/million mg/l)
Arsenic as As
0.05
Barium as Ba
5.0
Boron as Bo
5.0
Cyanides as CN (amenable)
0.1
Fluoride as F
20
Chromium:
  Total
1.0
  CR + 6
0.1
Magnesium as Mg
100
Manganese as Mn
5.0
Copper as Cu
1.0
Zinc as Zn
1.0
Cadmium
0.1
Lead
0.1
Tin
2.0
Silver
0.1
Mercury
0.01
Nickel
1.0
Note: All metals are to be measured as total metals.
[Ord. of 8-3-1981, § 18]
(a) 
In accordance with Section 25-54i of the Connecticut General Statutes as amended, a permit from the Commissioner of Environmental Protection is required prior to the initiation of a discharge of any of the following wastewaters to a public sewer:
(1) 
Industrial wastewater of any quantity;
(2) 
Domestic sewage in excess of 5,000 gallons per day through any individual building sewer to a public sewer.
(b) 
A potential discharger must submit a permit application to the Department of Environmental Protection not later than 90 days prior to the anticipated date of initiation of the proposed discharge.
[Ord. of 8-3-1981, § 18]
(a) 
If any sewage is discharged or is proposed to be discharged to the public sewers which contains the substances or possesses the characteristics enumerated in Section 23-55 of this article, and which in the judgment of the Commissioner may have a deleterious effect upon the wastewater facilities, processes, equipment or receiving waters, or which otherwise may create a hazard to life or constitute a public nuisance, the Commissioner may in accordance with Section 25-54i(b) of the Connecticut General Statutes, as amended:
(1) 
Reject the discharge of the wastes;
(2) 
Require pretreatment to an acceptable condition for discharge to the public sewers;
(3) 
Require control over the quantities and rates of discharge.
(b) 
If the Commissioner permits the pretreatment or equalization of waste flows, the design and installation of the equipment shall be subject to the review and approval of the Commissioner subject to the requirements of all applicable codes, ordinances and laws.
[Ord. of 8-3-1981, § 18]
The Authority shall have the right to reject the discharge of any wastes, or require more stringent effluent limitations than required by the user's Section 25-54i permit, the decisions of the Commissioner notwithstanding.
[Ord. of 8-3-1981, § 18]
Grease, oil and gross particle separators shall be provided when, in the opinion of the Commissioner, they are necessary for the proper handling of sewage containing floatable grease in excessive amounts, as specified in Section 23-55, or any flammable wastes, sand or other harmful substances; except that such separators shall not be required for private living quarters or dwelling units. All separators shall be of a type and capacity approved by the Commissioner, and shall be located as to be readily and easily accessible for cleaning and inspection. In the maintaining of these separators, the owner(s) shall be responsible for the proper removal and disposal by appropriate means of the captured material and shall maintain records of the dates and means of disposal, which are subject to review by the Commissioner. Any removal and hauling of the collected materials shall be performed by a waste disposal firm which possesses a valid permit from the Commissioner under Section 25-54h of the Connecticut General Statutes, as amended.
[Ord. of 8-3-1981, § 19]
(a) 
When required by the Commissioner, the owner of any property serviced by a building sewer carrying industrial wastes shall install a suitable structure together with such necessary meters and other appurtenances in the building sewer to facilitate observations, sampling and measurement of the wastes. Such structure, when required, shall be accessible and safely located and shall be constructed in accordance with plans approved by the Commissioner. The sampling structure shall be located at a point along the industrial waste stream where a representative sample of the industrial wastewater may be obtained prior to its being diluted by domestic sewage in the building sewer. The structure shall be installed by the owner at his expense and shall be maintained by him so as to be safe and accessible at all times.
(b) 
All industries discharging into a public sewer shall perform such monitoring of their discharge as required by the Commissioner in any state discharge permit issued pursuant to Section 25-54i of the Connecticut General Statutes, as amended, including, but not limited to, installation, use and maintenance of monitoring equipment, keeping records and reporting the results to the Commissioner. Such records shall be made available upon request of the Commissioner or the Superintendent.
[Ord. of 8-3-1981, § 19]
(a) 
All measurements, tests and analyses of the characteristics of sewage to which reference is made in this article shall be determined in accordance with the latest edition of "Standard Methods for Examination of Water and Waste Water," published by the American Public Health Association. Sampling methods, location, times, durations and frequencies are to be determined on an individual basis subject to the stipulations and general conditions of the discharger's state discharge permit.
(b) 
No statement contained in this article shall be construed as preventing any special agreement or arrangement between the City of Milford and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the City for treatment, provided that such agreements do not contravene any requirements of existing state or federal regulations and are compatible with any user charge and industrial cost recovery system in effect.
(c) 
Upon the promulgation of the federal categorical pretreatment standard for a particular industrial subcategory, the federal standard, if more stringent than limitations imposed under this article for sources in that subcategory, shall supersede the limitations imposed under this article.
(d) 
No user shall increase the use of process water in an attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with the limitations contained in the federal categorical pretreatment standards, or in any specific pollutant limitations which may be developed by the Commissioner.
(e) 
Each user shall provide protection from accidental discharge of prohibited materials or other substances regulated by this article. Facilities to prevent accidental discharge of prohibited materials shall be provided and maintained at the owner or user's own cost and expense. The Commissioner may require that plans showing facilities and operating procedures be submitted for review and approval prior to construction of the facilities.
(f) 
Within five days following an accidental discharge, the user shall submit to the Superintendent and the Commissioner, a detailed written report describing the cause of the discharge and the measures to be taken by the user to prevent similar future occurrences. Such notification shall not relieve the user of any expense, loss, damage or other liability which may be incurred as a result of damage to the WPCF, fish kills, aquatic plants or any other damage to persons or property; nor shall such notification relieve the user of any fines, civil penalties or other liability which may be imposed by this article or other applicable law.
(g) 
A notice shall be permanently posted on the user's bulletin board or other prominent place advising employees whom to call in the event of a dangerous discharge. Employers shall insure that all employees are advised of the emergency notification procedure.
[Ord. of 8-3-1981, § 19]
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 collection system or water pollution control facility.
[Ord. of 8-3-1981, § 19]
(a) 
The Superintendent and other duly authorized employees of the City bearing proper credentials and identification shall be permitted to enter all properties for the purposes of inspection, observation, measurement, sampling and testing in accordance with the provisions of this article.
(b) 
While performing the necessary work in private properties referred to in Subsection (a) hereof, the Superintendent or duly authorized employees of the City shall observe all safety rules applicable to the premises established by the user. The user shall be held harmless for injury or death to the City's employees and the City shall indemnify the user against loss or damage to its property by the City's employees and against liability claims and demands for personal injury or property damage asserted against the user and growing out of the gauging and sampling operation, except as such may be caused by negligence or failure of the user to maintain safe conditions as required in Section 23-61(a).
(c) 
The Superintendent and other duly authorized employees of the City bearing proper credentials and identification shall be permitted to enter all private properties through which the City holds a duly negotiated easement for the purposes of repair and maintenance of any portion of the sewage works lying within said easement. All entry and subsequent work, if any, on said easement, shall be done in full accordance with the terms of the duly negotiated easement pertaining to the private property.
[Ord. of 8-3-1981, § 19]
(a) 
Any person found to be in violation of any provisions of this article, except Section 23-63, shall be served by the City of Milford with written notice stating the nature of the violation and providing a reasonable time limit for the satisfactory correction thereof. The offender shall, within the period of time stated in such notice, permanently cease all violations.
(b) 
Any person who continues any violation beyond the time limit provided for in Subsection (a) hereof, shall be guilty of a misdemeanor and, on conviction thereof, shall be fined in the amount not exceeding $100 for each violation. Each day in which any such violation shall continue shall be deemed a separate offense.
(c) 
Any person who is found to be in violation of any of the provisions of this article shall become liable to the City of Milford for any expense, loss or damage occasioned the City by reason of such violation.
(d) 
Any person who is found to be in violation of Section 25-54i of the Connecticut General Statutes as amended shall be subject to a monetary penalty or forfeiture under Section 25-54q of the statutes.