[Amended 5-15-2006 by TOR-2006-2]
A. 
Deposit of certain materials into sewer, manhole or catch basin prohibited. No person shall place or throw any dead or decaying animal or vegetable matter, ashes, bottles, broken glass, tin cans, stones, earth or any other foreign substances into any sewer, manhole or catch basin.
B. 
Prohibited discharges to sanitary system. No person shall discharge or cause to be discharged any stormwater, surface water, groundwater, roof runoff, subsurface drainage, uncontaminated cooling water or unpolluted industrial process waters to any sanitary sewer.
C. 
Prohibited discharges to storm drain system. In order to prevent pollutants from entering the Town's municipal separate storm sewer system (MS4), the following activities are prohibited.
(1) 
Illicit discharges. No person shall dump, discharge, cause or allow to be discharged any pollutant or nonstormwater discharge into the municipal separate storm sewer system (MS4). Examples of illicit discharges include, but are not limited to, antifreeze, motor oil, pesticides, cleaning products, pet wastes, concentrated fertilizers, concentrated herbicides, bleach, concrete wash water, sediment laden construction runoff.
(2) 
Illicit connection. No person shall construct, use, allow, maintain or continue any illicit connection to the MS4, regardless of whether the connection was permissible under applicable law, regulation or custom at the time of connection.
(3) 
Obstruction of MS4. No person shall obstruct or interfere with the normal flow of stormwater into or out of the municipal storm drain system without prior written approval from the Superintendent.
(4) 
Exemptions.
(a) 
Emergency activities that are immediately necessary for the protection of life, property or the environment as determined by the Department of Public Works, Police Department, or Fire Department.
(b) 
Roadway maintenance activities essential to public health and safety.
(c) 
The following nonstormwater discharges or flows are exempt from the prohibition of nonstormwaters, provided that the source is not a significant contributor of a pollutant to the municipal storm drain system.
[1] 
Waterline flushing.
[2] 
Flow from portable water sources.
[3] 
Springs.
[4] 
Natural flow from riparian habitats and wetlands.
[5] 
Diverted stream flow.
[6] 
Rising groundwater.
[7] 
Uncontaminated groundwater infiltration as defined in 40 CFR 35 2005(20), or uncontaminated pumped groundwater.
[8] 
Water from exterior foundation drains, footing drains (not including active groundwater dewatering systems), crawl space pumps, or air conditioning condensation.
[9] 
Discharge from landscape irrigation or lawn watering.
[10] 
Water from individual residential car washing and nonprofit or charitable organization as part of a fund-raising activity on behalf of said organization.
[11] 
Discharge from dechlorinated swimming pool water (less than one ppm chlorine), provided that the water is allowed to stand for one week prior to draining and the pool is drained in such a way as not to cause a nuisance.
[12] 
Discharge from street sweeping.
[13] 
Dye testing, provided that verbal notification is given to the DPW Superintendent prior to the time of the test.
[14] 
Nonstormwater discharge permitted under an NPDES permit or a surface water discharge permit, waiver, or waste discharge order administered under the authority of the United States Environmental Protection Agency or the Department of Environmental Protection, provided that the discharge is in full compliance with the requirements of the permit, waiver, or order and applicable laws and regulations.
[15] 
Discharge for which advanced written approval is received from the Superintendent as necessary to protect public health, safety, welfare or the environment.
[16] 
Agricultural activities for normal maintenance or improvement of land as defined by the Massachusetts Wetlands Protection Act 310 CMR 10.04 and other implementing regulations as appropriate. Activities not exempted include spill of materials onto roadways from hauling agricultural products or fertilizers.
Stormwater and all other unpolluted drainage shall be discharged to a natural outlet if such outlet is reasonably accessible. If no such outlet is available, such unpolluted wastes may be discharged into combined sewers or storm sewers if approved by the Superintendent.
[Amended 7-9-1984]
No person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewer:
A. 
Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas.
B. 
Any waters or wastes containing toxic or poisonous solids, liquids or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, create a public nuisance or create any hazard in the receiving waters of the sewage treatment plant.
C. 
Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers or other interference with the proper operation of the sewage works, such as but not limited to ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails and paper dishes, cups, milk containers, etc., either whole or ground by garbage grinders.
No person shall discharge or cause to be discharged any substances, materials, waters or wastes if it appears likely, in the opinion of the Superintendent, that such substances, materials, water or 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 or public property or constitute a nuisance. In forming this opinion as to the acceptability of these substances, materials, waters or wastes, the Superintendent will give consideration to such factors as the quantities of subject wastes in relation to flows and velocities in the sewers, the materials of construction of the sewers, the nature of the sewage treatment process, the capacity of the sewage treatment plant, the degree of treatability of wastes in the sewage treatment plant and other pertinent factors. This prohibition shall include but not be limited to the following:
A. 
Any liquid or vapor having a temperature in excess of 140° F., unless the Town requires a lower temperature limit to ensure that the temperature of influent wastewater at the Town's wastewater treatment works does not exceed 104° F.
[Amended 1-21-1986 by TOR-85-4]
B. 
Any water or waste containing fats, wax, grease or oils, whether emulsified or not, in excess of 100 milligrams per liter 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. The installation and operation of any garbage grinder equipped with a motor of 3/4 horsepower 0.76 horsepower metric] or greater shall be subject to the review and approval of the Superintendent.
D. 
Any waters or wastes containing strong acid, iron, pickling wastes or concentrated plating solutions, whether neutralized or not, unless heavy metals and other sludge have been adequately removed from said wastes in the opinion of the Superintendent.
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 Superintendent 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 Superintendent 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 Superintendent in compliance with applicable state or federal regulations.
H. 
Any waters or wastes having a pH in excess of 9.6 or any waters or wastes 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 sewage works.
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 sulfate).
(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 to 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.
A. 
If any waters or wastes are discharged or are proposed to be discharged to the public sewers, which waters or wastes contain the substances or possess the characteristics enumerated in § 175-39 of this article, and which in the judgment of the Superintendent 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 Superintendent may:
(1) 
Reject the wastes,
(2) 
Require pretreatment to a condition acceptable to the Superintendent for discharge to the public sewers,
(3) 
Require control over the quantities and rates of discharge, and/or
(4) 
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 § 175-45 of this article.
B. 
If the Superintendent permits the pretreatment or equalization of waste flow, the design and installation of the plants and equipment shall be subject to the review and approval of the Superintendent, and subject to the requirements of all applicable codes, ordinances and laws.
Grease, oil and sand interceptors will be provided when, in the opinion of the Superintendent, 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 Superintendent and shall be located as to be readily and easily accessible for cleaning and inspection.
When required by the Superintendent, 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 Superintendent. 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.
A. 
All measurements, tests, and analyses of the characteristics of water and wastes to which reference is made in this chapter 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 twenty-four-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 twenty-four-hour composites of all outfalls, whereas pH's are determined from periodic grab samples.
B. 
All industries discharging into a public sewer shall perform such monitoring of their discharges as the Superintendent and/or other duly authorized employees of the Town may reasonably require, including installation, use and maintenance of monitoring equipment, keeping records and reporting the results of such monitoring to the Superintendent. Such records shall be made available upon request by the Superintendent to other agencies having jurisdiction over discharges to the receiving waters.
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 of character may be accepted by the Town for treatment, subject to payment therefor, by the industrial concern. Such agreement may not waive pretreatment standards (local and categorical), unless such a waiver is granted by mechanism established under the General Pretreatment Regulations. Prohibited discharge standards may not be waived under any circumstances.
No septic tank solids shall be discharged into the Town's sewage works. All septic tank waste shall be discharged at a designated location at the Bondi Island Treatment Plant.