[Code of Bylaws, App. C, Art. III, Section 1]
No person shall discharge or cause to be discharged any storm water, surface water, groundwater, roof runoff, subsurface drainage, uncontaminated cooling water, or unpolluted industrial process waters to any sanitary sewer.
[Code of Bylaws, App. C, Art. III, Section 2]
Storm water and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as combined sewers or storm sewers, or to a natural outlet approved by the board of sewer commissioners. Industrial cooling water or unpolluted process waters may be discharged, on approval of the board of sewer commissioners, to a storm sewer, combined sewer, or natural outlet.
[Code of Bylaws, App. C, Art. III, Section 3; Addendum No. 2, 7-15-1975]
No person shall discharge or cause to be discharged any of the following described pollutants into any public sewer:
(a) 
Any pollutant which is a toxic pollutant in toxic amounts as defined in standards issued from time to time under Section 307(a) of the Federal Act or any applicable state act.
(b) 
Any pollutant which creates a fire or explosion hazard in the sewage treatment works.
(c) 
Any pollutant which causes corrosive structural damage to sewage treatment works, including all waters or wastes having a pH lower than 6.5.
(d) 
Any pollutant which contains solid or viscous substance in amounts which would cause obstruction to the flow in sewers or other interference with proper operation of the sewage treatment works.
(e) 
Any pollutant which, in the case of major contributing industry, as defined herein, contains an incompatible pollutant, as further defined herein, in an amount or concentration in excess of that allowed under standards or guidelines issued from time to time pursuant to Sections 304, 306 and/or 307 of the Federal Act, or pursuant to any applicable state act.
(f) 
Any pollutant which has not been subjected to any pretreatment that may be required under federal or state law.
[Code of Bylaws, App. C, Art. III, Section 4]
No person shall discharge or cause to be discharged the following described substances, materials, waters, or wastes if it appears likely in the opinion of the board of sewer commissioners that such wastes can harm either the sewers, sewage treatment process, or equipment, have an adverse effect on the receiving stream, or can otherwise endanger life, limb, public property, or constitute a nuisance. In forming their opinion as to the acceptability of these wastes, the board of sewer commissioners will give consideration to such factors as the quantities of subject wastes in relation to flows and velocities in the sewers, materials of construction of the sewers, nature of the sewage treatment process, capacity of the sewage treatment plant, degree of treatability of wastes in the sewage treatment plant, and other pertinent factors. The substances prohibited are:
(a) 
Any liquid or vapor having a temperature higher than 150 degrees Fahrenheit (65 degrees Celsius).
(b) 
Any water or waste containing fats, wax, grease, or oils, whether emulsified or not, in excess of 100 mg/l or containing substances which may solidify or become viscous at temperatures between 32 and 150 degrees Fahrenheit (zero and 65 degrees Celsius).
(c) 
Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor of three-fourths horsepower (0.76 hp metric) or greater shall be subject to the review and approval of the board of sewer commissioners.
(d) 
Any waters or waste containing strong acid iron pickling wastes, or concentrated plating solutions, whether neutralized or not.
(e) 
Any waters or wastes containing iron, chromium, copper, zinc, and similar objectionable or toxic substances; or wastes exerting an excessive chlorine requirement, to such degree that any such material received in the composite sewage at the sewage treatment works exceeds the limits established by the board of sewer commissioners for such materials.
(f) 
Any waters or wastes containing phenols or other taste- or odor-producing substances, in such concentrations exceeding limits which may be established by the board of sewer commissioners as necessary, after treatment of the composite sewage to meet the requirements of the state, federal, or other public agencies or jurisdiction for such discharge to the receiving waters.
(g) 
Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the board of sewer commissioners in compliance with applicable state or federal regulations.
(h) 
Any waters or wastes having a pH in excess of 9.5.
(i) 
Materials which exert or cause:
(1) 
Unusual concentrations of inert suspended solids (such as, but not limited to, Fuller's earth, lime slurries, and lime residues) or of dissolved solids (such as, but not limited to, sodium chloride and sodium sulphate).
(2) 
Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions).
(3) 
Unusual BOD, chemical oxygen demand, or chlorine requirements in such quantities as constitute a significant load on the sewage treatment works.
(4) 
Unusual volume of flow or concentration of wastes constituting "slugs" as defined herein.
(j) 
Waters or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment processes employed, or are amenable to treatment only to such degree that the sewage treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.
[Code of Bylaws, App. C, Art. III, Section 5]
When wastes other than sanitary sewage are to be connected to the sewer system, a permit will not be issued until the applicant furnishes certified data that the wastes to be connected will not have detrimental effects upon the collection system and the treatment processes; create offensive odors; contain inflammable substances; or have a pH of 6.5 to 9.5.
[Code of Bylaws, App. C, Art. III, Section 7]
If any waters or wastes are discharged, or are proposed to be discharged, to the public sewers, which waters contain the substances or possess the characteristics enumerated in MMC 13.05.520, and which in the judgment of the board of sewer commissioners may have a deleterious effect upon the sewage works, processes, equipment, or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the board of sewer commissioners may:
(a) 
Reject the wastes;
(b) 
Require pretreatment to an acceptable condition for discharge to the public sewers;
(c) 
Require control over the quantities and rates of discharge; and/or
(d) 
Require payment to cover the added cost of handling and treating the wastes not covered by existing taxes or sewer charges under the provisions of MMC 13.05.640.
If the board of sewer commissioners permits the pretreatment or equalization of waste flows, the design and installation of the plants and equipment shall be subject to the review and approval of the board of sewer commissioners, and subject to the requirements of all applicable codes, bylaws, and laws.
[Code of Bylaws, App. C, Art. III, Section 8]
Grease, oil, and sand interceptors shall be provided when, in the opinion of the board of sewer commissioners, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, sand, or other harmful ingredients; except that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the board of sewer commissioners and shall be located as to be readily and easily accessible for cleaning and inspection.
[Code of Bylaws, App. C, Art. III, Section 8A]
All new food preparation facilities are required to install and maintain grease removal units. Acceptable grease removal systems include outdoor passive, in-ground grease interceptor, 500 gallons minimum size, 24-hour detention for process flow stream. Grease removal units size determined at 15 gallons per seat, or based on actual water usage for existing facilities.
[Code of Bylaws, App. C, Art. III, Section 10; Addendum No. 2, 7-15-1975]
When required by the board of sewer commissioners, the owner of any property serviced by a building sewer carrying industrial wastes shall install a suitable control manhole together with such necessary meters and other appurtenances in the building sewer to facilitate observation, sampling, and measurement of the wastes. Such manhole, when required, shall be accessibly and safely located, and shall be constructed in accordance with plans approved by the board of sewer commissioners. The manhole 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. All manhole covers used in sewer construction shall show the cast word "SEWER." All manhole covers and frames must comply with W.P.C.F. Manual of Practice No. 9.
[Code of Bylaws, App. C, Art. III, Section 11]
All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in these rules and regulations shall be determined in accordance with the latest edition of "Standard Methods for the Examination of Water and Wastewater," published by the American Public Health Association, and shall be determined at the control manhole provided, or upon suitable samples taken at said control manhole. In the event that no special manhole has been required, the control manhole shall be considered to be the nearest downstream manhole in the public sewer to the point at which the building sewer is connected.
Sampling shall be carried out by customarily accepted methods to reflect the effect of constituents upon the sewage works and to determine the existence of hazards to life, limb, and property. (The particular analyses involved will determine whether a 24-hour composite of all outfalls of a premises is appropriate or whether a grab sample or samples should be taken. Normally, but not always, BOD and suspended solids analyses are obtained from 24-hour composites of all outfalls whereas pHs are determined from periodic grab samples.
[Code of Bylaws, App. C, Art. III, Section 11a; Addendum No. 2, 7-15-1975]
Any industry discharging into the public sewer system is required to perform such monitoring of its discharges as the town of Millbury sewer department may reasonably require, including the installation, use, and maintenance of monitoring, and to report the results of such monitoring to the town of Millbury. Such records shall be made available upon request by the town of Millbury sewer department to other agencies having jurisdiction over discharges to the receiving waters.
[Code of Bylaws, App. C, Art. III, Section 11b; Addendum No. 2, 7-15-1975]
The board of sewer commissioners, superintendent or any other authorized representative is authorized to enter into, upon, or through the premises of any industry discharging into the sewage treatment works to have access to and copy any records, to inspect any monitoring equipment or method required under MMC 13.05.610, and to sample any discharge into the sewage treatment works.
[Code of Bylaws, App. C, Art. III, Section 11c; Addendum No. 18, 5-13-1997]
The board of sewer commissioners reserves the right to surcharge, i.e., levy any additional charge or charges from any industry that discharges into the public sewer, concentrations, quantities and/or loadings over and above normal limits, as determined by the board of sewer commissioners.
[Code of Bylaws, App. C, Art. III, Section 12]
No statement contained in this article shall be construed as preventing any special agreement or arrangement between the town and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the town for treatment, subject to payment therefor, by the industrial concern.
[Code of Bylaws, App. C, Art. III, Section 13; Addendum No. 4, 5-18-1982; Addendum No. 18, 5-13-1997]
User fees, per Article V, shall be assessed as follows: Any sewer connections installed between July 1st and December 31st of any year shall be assessed sewer use fees as of the following January 1st; and any sewer connections installed between January 1st and June 30th of any year shall be assessed sewer use fees as of the following July 1st. Property owners who are required to install a sewage pump for their main dwelling unit, or for any apartment, shall be abated one unit only on their sewer use fees to cover some of the additional maintenance cost to operate said pump.
[Code of Bylaws, App. C, Art. III, Section 14; Addendum No. 2, 7-15-1975]
Any records or recordings of any industry which flows into our sewer system shall be provided, if requested, by the town of Millbury sewer department, such as total floor space, flow data, people employed, water consumption, processes, laboratory analyses, or design of pretreatment facilities.