No person shall introduce or cause to be introduced any discharge into the sewerage system which may for any reason cause or threaten, either singly or in combination with other discharges:
A. 
Interference with or adverse effect upon its operation.
B. 
Interference with or adverse effect upon sludge handling, use or disposal, including but not limited to noncompliance with Section 405 CWA,[1] the Solid Waste Disposal Act,[2] the Clean Air Act,[3] the Toxic Substances Control Act,[4] the Marine Protection Act or any local or state laws, regulations or ordinances.
[1]
Editor's Note: See 33 U.S.C. § 1345.
[2]
Editor's Note: See 42 U.S.C. § 6901 et seq.
[3]
Editor's Note: See 42 U.S.C. § 7401 et seq.
[4]
Editor's Note: See 15 U.S.C. § 2601 et seq.
C. 
A violation of its NPDES permit, including but not limited to exceeding its permit limits.
D. 
Passthrough of any substance into the receiving waters which then causes or threatens pollution.
No person shall introduce or cause to be introduced any discharge into the sewerage system which may contain:
A. 
Any hazardous or toxic substance listed in Appendix B or D of RCSA Section 22a-430-4;
B. 
Any substance which may be sufficient, either alone or by interaction with other substances, to create a hazard of fire or explosion in the sewerage system;
C. 
Wastewater having a pH of more than 9.0 or less than 5.5 or having any other corrosive property capable of causing damage or hazard to structures, equipment or personnel of the sewerage system;
D. 
Solid or viscous substances in amounts that may cause obstruction of the flow in the sewerage system or other interference with its operation, including substances such as, but not limited to, grease, particles greater than 1/2 inch in any dimension, metal, glass, rags, nondispersible wipes, paint, plastics, or grinding and polishing wastes;
E. 
Pollutants, including septage and oxygen-demanding pollutants (BOD, COD, suspended solids, phenols, etc.), at a rate or concentration that, either alone or in conjunction with discharges from other sources, may result in a violation of the Town's NPDES permit;
F. 
Wastewater at a temperature greater than 150° F. (65° C.) or that causes the wastewater entering the WWTP to exceed 104° F. (40° C.);
G. 
Wastewaters that produce toxic gases, vapors, or fumes within the sewerage system that may cause acute public or worker health and safety problems;
H. 
Trucked or hauled pollutants, except as approved by and at discharge points designated by the Public Works Director;
I. 
Noxious or malodorous liquids, gases, solids, or other wastewater that, either alone or by interaction with other substances, may create a public nuisance or hazard or prevent entry into the sewerage system for maintenance or repair;
J. 
Wastewater that imparts color that cannot be removed by the treatment process;
K. 
Wastewater containing any radioactive wastes or isotopes except in compliance with applicable state and federal regulations;
L. 
Stormwater, surface water, groundwater, artesian well water, roof runoff, subsoil drainage, swimming pool drainage, condensate, deionized water and non-contact cooling water;
M. 
Sludge, screenings, or other residues from the pretreatment of industrial wastes;
N. 
Medical wastes;
O. 
Detergents, surfactants, or other substances which may cause excessive foaming;
P. 
Fats, wax, oils, greases of animal or vegetable origin, petroleum, cutting oil or mineral oil, whether emulsified or not, in concentrations greater than 100 mg/l or in amounts that will cause interference or pass-through. Floatable oil shall not exceed 20 mg/l or contain substances which may solidify or become viscous at temperatures between 32° F. and 150° F.
Q. 
Overflow from holding tanks or other receptacles storing organic wastes;
R. 
Wastewater with a concentration of pollutants in excess of the following limits in mg/l; All metals are to be measured as total metals:
Pollutant
Concentration Limit
(mg/l)
Arsenic as As
0.05
Barium as Ba
5.0
Boron as B
5.0
Cadmium
0.07
Chromium (total)
1.0
Chromium (Cr +6)
0.1
Copper as Cu
1.0
Cyanides as CN (amenable)
0.1
Fluoride as F
20
Lead
0.1
Magnesium as Mg
100
Manganese as Mn
5.0
Mercury
0.01
Nickel
1.0
Silver
0.1
Tin
2.0
Zinc as Zn
1.0
In accordance with Section 22a-430b of the CGS, dischargers of industrial waste shall be subject to all registration, processing, operation, recordkeeping, reporting and other requirements of individual or general permits issued by the DEEP, including but not limited to:
A. 
A General Permit for the Miscellaneous Discharges of Sewer Compatible (MISC) Wastewater (DEEP-WPED-GP-012) applicable to wastewater, including but not limited to air compressor condensate and blowdown, boiler blowdown, building maintenance wastewater, commercial laundry wastewater, contact cooling and heating water, cutting and grinding wastewater, fire-suppression system testwater, food-processing wastewater, hydrostatic pressure testing wastewater, non-contact cooling water, non-destruct testing rinsewater, printing and photographic processing wastewater, tumbling and cleaning wastewater, water treatment wastewater, fire suppression testing wastewater, and swimming pool wastewater.
B. 
A General Permit for Domestic Sewage (DEP-WPED-GP-018) applicable to discharges of domestic sewage from a community sewerage system greater than 1% of the average daily design flow of the WWTP. Privately owned community sewerage systems (such as those at condominiums) are to be properly managed and have a valid community sewerage system agreement with the municipality receiving the discharge as required by Section 7-246f of the General Statutes.
C. 
A General Permit for Vehicle Maintenance Wastewater (DEP-PERD-GP-010) applicable to wastewater generated by floor washdown and incidental drippage from vehicles as a result of routine servicing operations and washing of vehicle exteriors or steam cleaning of engines. The maximum daily flow of all discharges of vehicle maintenance wastewater generated at a single site must not exceed 15,000 gallons per day.
D. 
A General Permit for the Discharge of Wastewater Associated With Food Preparation Establishments (DEEP-WATERP&S-GP-001) applicable to wastewater discharged from restaurants, hotel kitchens, hospital kitchens, school kitchens, bars, factory cafeterias, retail bakeries and clubs. At no time shall the pH of the wastewater discharged from the grease trap/interceptor, AGRU or other approved unit and prior to mixing with any other wastewater from the facility be less than 5.0 nor greater than 10.0 standard units at any time, nor shall the concentration of fats, oils, and grease in wastewater from the grease trap/interceptor, AGRU, or other approved unit and prior to mixing with any other wastewater from the facility exceed 100 milligrams per liter.
E. 
A General Permit for Food Processing Wastewater (DEP-WD-GP-006) applicable to wastewaters generated by the manufacture and storage of food and beverage for human and animal consumption, including but not limited to laboratories associated with or the cleaning and maintenance of areas associated with storage, processing, packaging, and disposal of raw materials, products, and by-products, and composting operations. Total discharges of food-processing wastewater cannot exceed 50,000 gallons per day and must be either discharged directly to a POTW or hauled there. For those activities having food-processing wastewater discharges with a maximum daily flow greater than 1,000 gallons per day, a registration is required to be submitted to the Department. For discharges which contain any of the substances listed in Attachment B (Toxic and Hazardous Pollutants and Their Maximum Concentrations) of the general permit in concentrations exceeding the concentrations listed therein, registration is required to be submitted and approved in writing by the Department. No registration is required for those activities having maximum daily discharges equal to or less than 1,000 gallons per day and which do not contain any of the substances listed in Attachment B in concentrations exceeding the maximum concentrations listed therein.
F. 
A General Permit for Groundwater Remediation Wastewater to a Sanitary Sewer (DEP-WD-GP-007) applicable to discharges of groundwater remediation wastewater generated during the process of investigating and remediating groundwater and soil. The maximum daily flow of all discharges may not exceed 5% of the POTW's design capacity and must be either discharged directly to the POTW or hauled there. Registration is required to be submitted to the department in order for the discharges to be authorized by this general permit.
G. 
A General Permit for Categorical Industrial User Wastewater to a Publicly Owned Treatment Works (DEEP-WPED-GP-008) applicable to wastewaters discharging from facilities subject to 40 CFR 403.6, National pretreatment standards: categorical standards. The first categorical wastewater covered by this general permit is metal finishing wastewater, which is wastewater subject to the provisions of 40 CFR Part 413 (Electroplating Point Source Category) or 40 CFR Part 433 (Metal Finishing Point Source Category).
A. 
If any discharge or proposed discharge is prohibited by § 690-11 or 690-12, the Commissioner or the Public Works Director may, in accordance with Section 22a-430b of the CGS, prohibit the discharge, require pretreatment to an acceptable condition before discharge, or require control over the quantities and rates of discharge.
B. 
No user shall 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.
C. 
The Public Works Director may require users to restrict their discharge during peak flow periods, install equalization tanks, or take other actions to comply with the requirements of these regulations.
D. 
The Public Works Director may require users with the potential to discharge flammable substances to install and maintain an approved combustible gas detection meter.
E. 
Where required by the Public Works Director, the owner of any property discharging 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 and the WSA. 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.
F. 
No statement contained in this section shall be construed as preventing any special agreement or arrangement between the WSA and any industrial user whereby an industrial waste of unusual strength or character may be discharged for treatment, provided that such agreement does not contravene any requirement of existing federal or state regulations.
A. 
Each nonresidential user shall provide protection from accidental discharge of prohibited materials or other substances regulated herein. Facilities to prevent accidental discharge of prohibited materials shall be provided and maintained at the user's expense. The Commissioner or the WSA may require that plans showing facilities and operating procedures be submitted for review and approval prior to construction of the facilities. 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 prohibited discharge. Employers shall ensure that all employees are advised of the emergency notification procedure.
B. 
Within five days following an accidental discharge, the user shall submit to the Public Works Director 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 sewerage system, 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 these rules or other applicable law.
The Town reserves the right to reject the discharge of any wastewater and to establish, by regulation or in wastewater discharge permits, more stringent standards or requirements on discharges to the sewerage system.
It shall be a violation of these regulations to maliciously, willfully, or negligently break, damage, destroy, uncover, deface, or tamper with any structure, appurtenance, or equipment which is a part of the sewerage system.