[Code 1969, § 11-51; Ord. No. 174, 7-16-1985]
(a) 
The owner of each house, building or property used for human occupancy, employment, recreation or other purposes situated within the district and abutting on any street, alley or right-of-way in which there is now located or may in the future be located a public sanitary sewer of the district may, at the option of the authority and at the owner's expense, be required to install a building sewer to connect the building drain to the public sewer in accordance with the provisions of this article and applicable state statutes within 90 days after date of official notice to do so. Persons in violation of the following shall be required to tie into the sewer collection system: violations of local or state health codes or when in the opinion of the authority, connection will be in the best interest of the public.
(b) 
It shall be unlawful for any person to construct or repair any privy, privy vault, septic tank, cesspool or other facility intended for the disposal of sewage if public sewers are available.
[Code 1969, § 11-52; Ord. No. 174, 7-16-1985]
No unauthorized person shall uncover, make any connections with or opening into, use, alter, repair or disturb any public sewer or appurtenance thereof.
[Code 1969, § 11-53; Ord. No. 174, 7-16-1985]
A property owner intending to connect a building drain from his property to the town sanitary sewer system shall obtain a permit to connect from the director. Any persons proposing a new discharge into the public sewer system which would cause a substantial change in the volume or character of pollutants that are being discharged into the public sewer system shall notify the director at least 45 days prior to the proposed change or connection.
(1) 
A person intending to connect a building drain from his property to the public sewer shall first obtain a permit to connect from the director. The application shall be made on forms provided by the director and it shall be accompanied by a sketch or plan showing the proposed installation in sufficient detail to enable the director to determine that the proposed installation meets the requirements of this regulation and other applicable specifications, codes and laws. The application shall be signed by the owner of the premises to be served and by a qualified contractor who has been chosen to perform the work of installing the building sewer. Upon approval of the application and plan, a permit shall be issued to have the work performed by the stated contractor. If the premises changes ownership before the work is completed, or if another contractor is chosen to perform or finish the work, the original permit shall become void, and a new permit shall be obtained by the new parties in interest.
(2) 
A connection to the public sewer will be made only after the building's plumbing has been approved by the town building official in order to ensure that minimum standards are met for the installation. A house trap and fresh air vent shall be required for the building and all plumbing shall be in good working order. No trench containing a building drain or connection to the sanitary sewer shall be maintained at a level below the sewer connection before the cap is removed and while the connection is being made and until such time as it has been inspected, approved and backfilled. The contractor shall notify the director 48 hours before starting any work authorized under this permit.
(3) 
Permits to connect with the town sanitary sewer system may be revoked by the director for such cause and at such time as he may deem sufficient, and the authority shall make claim for any damages suffered by the authority or the town as a consequence of such revocation or the cause thereof. All other parties in interest shall be held to have waived the right to claim damages from the town or the authority on account of such revocation.
(4) 
The permit to connect shall be deemed to expire upon completion and acceptance of work by the director, or upon the passage of six calendar months from the date of issuance, whichever occurs first.
(5) 
Existing building sewers may be used in connection with new buildings only when they are found, on examination and test by the director to meet all requirements of this article.
(6) 
Street excavation permit from public works department is required.
[Code 1969, § 11-54; Ord. No. 174, 7-16-1985]
In consideration of the granting of the permit to connect, issued by the director, the owner is deemed to have agreed to the following:
(1) 
That he shall be acquainted with and shall abide by these regulations.
(2) 
Any owner of property who is connected to a public sanitary sewer shall pay all sewer use charges which may be established from time to time by the authority. Sewer use charges shall be payable as set forth in the sewer use rate schedule currently in force.
(3) 
All building drains shall be laid from the building served to the town sewer at no cost to the town.
(4) 
Maintenance of all building drains to the point of connection to the town sanitary sewer system shall be the responsibility of the property owner.
(5) 
All connections authorized by these regulations shall be in accordance with all applicable codes, laws and regulations of the state and all applicable rules, regulations and ordinances of the town.
(6) 
The owner and contractor jointly shall hold the town harmless against all third party liability for damage incurred in the course of the work.
(7) 
The owner will be liable for payment of sewer use charges upon connection to the town sewer system and that such use charge can only be terminated by capping of the sewer lateral outside of the structure, or temporary plugging, as stated in section 15-136. Plugging or capping requires a permit by the building inspector. Any unoccupied dwelling or structure with a sewer connection will continue to be billed at the standard use charge set by the authority.
[Code 1969, § 11-55; Ord. No. 174, 7-16-1985]
(a) 
All excavations for building sewer installation shall be adequately guarded with barricades and lights so as to protect the public from hazard. Streets, sidewalks, parkways, and other public property disturbed in the course of the work shall be restored in a manner satisfactory to the municipality.
(b) 
No building sewer shall be constructed within 25 feet of a water supply well. If a building sewer is constructed within 25 to 75 feet of a water supply well, it shall be constructed in accordance with all applicable guidelines promulgated by the commissioner.
(c) 
Not more than one building shall be connected with a public sewer through any one drain without an approved deviation granted by the director. In case such approval is granted, the drain shall be straight from the town sanitary sewer to one of the buildings unless the approved deviation shall allow for other construction.
(d) 
The building sewer shall be cast iron service weight, asbestos cement pipe 2500-pound test, or PVC meeting ASTM D3034 for SDR 35, and shall be free from defects which may cause leakage either into or out of the pipe. Portland cement mortar joints shall not be permitted. All joints shall be made with material approved for the specific piping, and in an approved manner. Cast iron pipe with lead joints may be required by the authority where the building sewer is exposed to damage by tree roots. If installed in unstable ground, the building sewer shall be of cast iron soil pipe, except if laid on a suitable concrete bed or cradle. Piping through foundation wall shall be four-inch extra heavy cast iron. Lateral lines shall be six-inch diameter or larger upon approval of the director from the property line to a point eight feet outside foundation.
(e) 
The size and slope of the gravity building sewer shall be subject to the approval of the director, but in no event shall the diameter be less than six inches. The slope of such six-inch pipe shall not be less than two percent (one-quarter-inch per foot). Where this is impractical, the inspector may approve a grade of not less than one percent (one-eighth-inch per foot). Subject to the approval by the inspector, pipes larger than six-inch diameter may be laid at a grade less than one percent. The building sewer shall be laid at uniform grade and in straight alignment insofar as possible. Changes in direction shall be made only with manholes or properly curved pipe and fitting, as approved by the director.
(f) 
All excavations required for the installation of a building sewer shall be open trench work unless otherwise approved by the authority. Pipe laying and backfill shall be performed in accordance with ASTM specifications D-2321-74 except that no backfill shall be placed until the work has been inspected.
(g) 
All joints and connections shall be properly made in compliance with the recommendations of the manufacturer of the products, and shall be so constructed as to prevent any leakage of sewage from lines or ground water into the line. If joints or connections are found to be improperly made, they shall be pulled apart and remade, and approved by the inspector before backfilling the trench.
(1) 
Cast iron pipe joints shall be firmly packed with oakum or hemp and filled with molten lead, Federal Specifications QQ-C-40 not less than one inch deep.
(2) 
Lead shall be run in one pouring and shall be caulked tight.
(3) 
No paint, varnish, or other coatings shall be permitted on the jointing material until after the joint has been tested and approved.
(4) 
A "push-on" type joint will be acceptable as an alternate.
(5) 
All joints in PVC pipe or between such pipe and metals shall be made with approved premolded gasket joints and shall utilize materials have resilient properties shall conform to ASTM D3034.
(h) 
No person shall connect any roof drain downspout, foundation drain, area way drain, basement drain, sump pump or other source surface runoff or groundwater, to a building sewer or building drain which in turn is connected directly or indirectly to a public sanitary sewer.
(i) 
In the construction of household sewer connections, pipe shall be laid on an even tamped foundation or coarse sand, fine gravel or three-fourths-inch crushed stone. Where wet or soft conditions prevail three-fourths-inch crushed stone shall be used for foundation of all pipe. The backfill shall be thoroughly compacted by tamping or other approved methods up to the spring line of the pipe. Care must be taken during backfilling that the pipe is not injured or disturbed by stones or other material. Backfill material to a foot above the pipe shall be compactible materials, not frozen, and free from clods of earth, stones larger than two inches in diameter, organic material, roots, stumps, peat, and other unsuitable materials as directed by the inspector. The balance of backfill in trench shall be compatible materials, not frozen, and free from stones larger than four inches in their largest dimension and other unsuitable material as directed by the inspector.
(j) 
Where pipe is being laid at depths that may provide insufficient cover, less than three feet, to safeguard the pipe properly from physical damage due to superimposed loads, the drain layer shall use cast iron pipe, ASA A21.8, 1853 Class 22 or concrete encasement as may be approved by the inspector.
(k) 
No house connection may be constructed less than five feet horizontally from any underground gas, electric or telephone service, or less than ten feet from a water service or main, unless approved by the appropriate utility company and the director.
(l) 
The house trap shall be in the basement wherever possible. If located outside, it shall be at least three feet below grade and accessible and precautions taken to prevent freezing. One trap shall be provided per building unless otherwise approved by the director.
(m) 
The fresh air vent shall be four inches in diameter, and shall terminate at least one foot above grade. The trap cleanout shall not be used as a vent.
(n) 
Cleanouts are required:
(1) 
Immediately beyond house trap.
(2) 
At any change of direction or of grade of 45 degrees or more.
(3) 
For any run of over 75 feet.
(o) 
All sewerage originating on the premises shall be connected to the public sewer. No on-site sewerage disposal system shall be permitted to remain on the premises after the sewer connection is made. All abandoned septic tanks, dry walls, and/or cesspools shall be pumped dry and filled.
[Code 1969, § 11-56; Ord. No. 174, 7-16-1985]
(a) 
Design period. In general, sewer systems shall be designed for projected maximum tributary population at present zoning.
(b) 
Design factor. New sewers shall be designed on the basis of an average daily per capita flow of wastewater of not less than 100 gallons per day and a peak flow of not less than four times this rate except where otherwise authorized by the director.
(c) 
Details for design and construction. The following details and specifications shall be applicable for all sewer systems coming under this article:
(1) 
Pipe sizes (house connections):
a. 
Multiunit, eight inch minimum.
b. 
Single unit, six inch minimum.
(2) 
Materials:
a. 
Gravity pipelines 15 inches and smaller shall be PVC SDR 25 ASTM D3034.
b. 
Force mains shall be PVC SDR 16 Class 150.
c. 
Manholes shall be precast concrete and rubber boat, connection to pipelines and cast iron frames and covers on brick risers.
(3) 
Depth:
a. 
In general, sewers should be designed deep enough to drain basement fixtures.
b. 
Sewer in roadways shall be deep enough to pass under water mains with a minimum of 18 inches vertical separation.
c. 
Minimum depths of street laterals shall be eight feet, zero inches, unless otherwise approved by the director.
(4) 
Slopes:
a. 
Minimum slopes for eight-inch sewers shall be 0.4 feet per 100 feet.
b. 
Minimum slopes for six-inch house connections shall be 1.0 feet per 100 feet.
c. 
Maximum slopes shall be 12 feet per 100 feet.
(5) 
Alignment:
a. 
All sewers shall be laid with straight alignment between manholes.
b. 
The laser alignment method shall be used to set line and grade of all gravity pipe lines.
c. 
When a smaller sewer joins a larger one at a manhole the smaller lines shall be laid at a grade no lower than the grade which sets the crown of the pipes at the same elevation.
(6) 
Leakage testing:
a. 
All gravity pipe lines shall pass an approved air test before acceptance.
b. 
All pressure lines shall pass an approved water pressure test before acceptance.
c. 
All manholes shall pass an infiltration or exfiltration test before acceptance.
(7) 
Protection of water supplies:
a. 
While no general statement can be made to cover all conditions, it is generally recognized that sewers shall be remote from public water supply wells or other water sources and structures.
b. 
Pressure piping will be required where sewers are within acceptable separating distances to water supply systems.
(8) 
Relation to water mains:
a. 
Horizontal separation. Sewers shall be laid at least ten feet horizontally from any existing or proposed water lines.
b. 
Vertical separation. When sewers must cross under water lines a minimum vertical separating distance of 18 inches must be kept between the pipe lines.
[Code 1969, § 11-57; Ord. No. 174, 7-16-1985]
(a) 
Generally. Whenever possible, the public sewer shall be at a depth great enough so that all properties that have accessibility to the sewer can be served by gravity. Those buildings which cannot be served by gravity or if there are special conditions as determined by the director, the director shall provide and maintain a grinder pump unit to such properties.
(b) 
Notification of installation. The contractor shall notify the building official at least ten days prior to installation of pump. This will enable the owner, contractor and building official to process all necessary permits and easements.
(c) 
Granting of easement. An easement for maintenance of the grinder pumps must be granted to the authority.
(d) 
Cost of tie-ins. The authority will bear the cost of electrical tie-in of both inside and outside units by a contractor chosen by the director to an electrical service of adequate size. The authority will not upgrade the owners electrical system to accept the grinder pump; also at the authority's cost outside units will be delivered and placed into a predug hole at the site.
(e) 
Inside installation. Tank shall be set level on a firm bed, with a minimum head-room over tank of three feet, six inches, and in a readily accessible location. House sewer pipe shall be adapted to a four-inch PVC socket provided in tank with an approved adapter. Motor breather tube furnished by town shall be installed by owner in accordance with installation manual furnished with tank. Tank shall be vented with three-inch vent installed within one inch of tank.
(1) 
Discharge. Tank will come equipped with 1¼-inch brass male pipe thread. Contractor will have to adapt with nipple, elbow, union and 1¼-inch shut off valve. These shall be installed so that when union is taken apart, the core of pump can be lifted from unit with no obstructions in the way. The above-mentioned fittings will be a combination of brass and copper. Pipe from valve to foundation wall can be 1¼-inch PVC schedule 40 or 1¼-inch PE 160 pound test with approved fittings. Pipe through wall shall be sleeved and caulked so as to be watertight.
(2) 
Piping from foundation to redundant check valve shall be 1¼-inch PE 160 pound test copper tube size water service pipe, laid in one piece without any joints. Four-feet deep minimum to prevent from freezing, packed in sand.
(3) 
Redundant check valve will be supplied by town and shall be installed within 18 inches of corporation valve, using 1¼-inch M.P.T. PVC schedule 40 adapter, or 1½-inch to 1¼-inch bushing, depending on size of I.P.T. at corporation valve. Wherever possible contractor should tie directly into F.P.T. at corporation valve with the above listed fittings. Directly beyond check valve will be a short piece of 1¼-inch PVC Schedule 40 within a 1¼-inch F.P.T. adapter; into this adapter will be a 1¼-inch M.P.T. Brass Tex adapter within two stainless steel clamps. Check valve shall be set level and arrow in direction of flow.
(f) 
Exterior installation. Contractor will prepare hole to a depth of seven feet, eight inches. The town will deliver exterior unit to site. Top of unit shall protrude approximately four inches above grade. House sewer line to unit shall be CI or PVC; will be adapted to four-inch PVC socket provided in tank with proper fittings. Tanks shall be vented with three-inch vent within one foot of unit.
(1) 
Discharge. The piping inside manway will be factory installed to a 1¼-inch M.P.T. brass fitting through manway. From this fitting use 1¼-inch F.P.T. brass coupling and adapt to coupling with a 1¼-inch M.P.T. Brass Tex adapter to 1¼-inch 160 pound P.E. pipe with two stainless steel clamps. The connection at corporation valve will be same as interior pump installation. All trenching for electrical conduit or direct burial wires will be prepared by homeowners contractor.
(2) 
Piping from foundation to redundant check valve shall be 1¼-inch PE 160 pound test copper tube size water service pipe, laid in one piece without any joints, four-feet deep minimum to prevent from freezing, packed in sand.
(3) 
Redundant check valve will be supplied by town and shall be installed within 18 inches of corporation valve, using 1¼-inch M.P.T. PVC schedule 40 adapter, or 1½-inch to 1¼-inch bushing, depending on size of F.P.T. as corporation valve. Wherever possible contractor should tie directly into F.P.T. of corporation valve with the above listed fitting. Directly beyond clerk valve will be a short piece of 1¼-inch PVC Schedule 40 with a 1¼-inch F.P.T. adapter; into this adapter will be a 1¼-inch M.P.T. Brass Tex adapter with two stainless steel clamps. Check valve shall be set level and arrow in direction of flow.
(g) 
Electrical. The authority will have an electrician wire the pump at no direct cost to the owner. The authority will furnish all materials required to connect to the homeowner's adequate power supply (one 240-volt 20-amp circuit and one 120-volt 15-amp circuit), including an alarm light/buzzer for the upstairs. If the home does not have this required supply, the owner must arrange for upgrading his electrical system before proceeding with grinder-pump installation. This will be the homeowner's responsibility.
(h) 
Test line and fitting in ground. The 1¼-inch P.E. 160 pound line and fittings at corporation valve and redundant check valve will be water tested before any backfilling of said line or fittings should occur. Corporation valve shall remain closed and line can be tested with pressure from house domestic water pressure. The town will furnish an adapter to make this test.
(i) 
Testing grinder pump. After all controls and pump have been wired to adequate house current, and before any house waste line is tied into unit, corporation valve shall be opened, then open gate valve in discharge line in pump, fill pump with water until it pumps down and shuts off. Turn off power to pump and fill with water to overflow level which will be close to level of inlet line, at this point warning light and audible alarm should come on. Turn power to pump on and pump down. If all alarms and pump are working properly, waste line and or line from house can be tied into pump inlet socket.
(j) 
Property owners' liability. It shall be the responsibility of the property owner to make every reasonable effort to protect the grinder pump from damage at all times. The property owner's responsibility, without limiting other areas, shall include the following:
(1) 
Proper installation and testing in accordance with the foregoing.
(2) 
Erection of suitable barrier to prevent grinder pump from being struck by a vehicle or other object.
(3) 
Promptly advising the director of any circumstances or event that may cause damage to the grinder pump.
If in the opinion of the director damage occurs to the grinder pump due to the negligence of the property owner, such property owner will be liable in damages to the authority. The director shall notify the property owner as to the nature of the negligence of the property owner and the cost of repairs to or replacement of the damaged grinder pump. If the property owner and director cannot agree as to the negligence or the amount of damages, the director shall refer the matter to the authority and, if necessary, arbitration may be had in accordance with section 15-104 of these regulations.
[Code 1969, § 11-58; Ord. No. 174, 7-16-1985]
Grease and oil traps are required to assure that large volumes of grease and/or oil do not enter the collection system causing adverse effects to its operation and maintenance.
(1) 
The director may require traps for the following reasons:
a. 
Any single source which discharges fats, grease and mineral oils in a concentration of 100 mg/l or more with a flow of 175 gallons/day or more and/or a concentration of floatable greases in excess of 20 mg/l with a flow of 35 gallons/day.
b. 
Any single source discharge with fats, oils, greases and petroleum in a form which will not emulsify at 50 degrees Fahrenheit or lower or concentrations of 100 mg/l or more with a flow of 175 gallons/day or more.
c. 
The director may have traps installed no matter what the volume or concentration, if in his opinion an apparent problem may be caused in the system by not having one installed.
(2) 
Installation:
a. 
The unit will be located at a point not closer than 25 feet from the source of the last discharge to the receiving line. No toilet facilities can be located before the inlet to the trap. The trap will be so located that cleaning can be easily carried out.
b. 
The size will be 55 gallons and up as determined by the director depending on the concentration of the discharge, volume of the discharge, distance from the source and other pertinent factors.
c. 
Grease trap materials shall be such that it will be impervious to the sewage and other corrosive materials that may be discharged into it. It must also be able (with a 200 percent factor) to withstand the maximum amount of external pressure placed on it at any one time. The inlet and outlet piping and baffling must be approved by the director. Proper provisions shall be made for ease of periodic cleaning.
d. 
The use and design of any sand trap for the removal of grease, oil or petroleum products must previously be approved by the state department of environmental protection and the director when applicable.
e. 
The location and design must be submitted to the director for approval in less than 45 days in advance of installation.
f. 
Maintenance shall be the full responsibility of the owner at no cost to the town and shall be carried out at intervals as requested by the director.
[Code 1969, § 11-59; Ord. No. 174, 7-16-1985]
(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.
(c) 
No users shall contribute or cause to be contributed, directly or indirectly, any pollutant or wastewater which will interfere with the operation or performance of the Water Pollution Control Facility (WPCF). These general prohibitions apply to all such users of a WPCF whether or not the user is subject to national categorical pretreatment standards of any other federal or state pretreatment standards or requirements. A user shall not contribute the following substances to any WPCF:
(1) 
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 consecutive 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 five percent nor any single reading over ten percent of the lower explosive limit (LEL) of the meter.
(2) 
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, grease, garbage with particles greater than one-half inch in any dimension, animal guts or tissues, paunch manure, bones, hair, hides or fleshing, 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, plastic, gas, tar, asphalt residues, residues from refining or processing of fuel or lubricating oil, mud or glass grinding or polishing wastes.
(3) 
Any sewage having a pH lower than 6.5 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 dischargers state discharge permit, but no higher than 8.5.
(4) 
Any sewage containing toxic pollutants in sufficient 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.
(5) 
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.
(6) 
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 the structures and treatment processes or which may cause effluent limitations of the WPCF's NPDES permit to be exceeded.
(7) 
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 Toxic Substances Control Act, or state criteria applicable to the sludge management method being used.
(8) 
Any substance which will cause the WPCF to violate its NPDES permit or the receiving water quality standards.
(9) 
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 district NPDES permit.
(d) 
The following described substances, materials, waters, or waste shall be limited in discharges to public sewers to concentration or quantities which will not harm either the sewers, 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:
(1) 
Sewage having a temperature higher than 150 degrees Fahrenheit (65 degrees Celsius).
(2) 
Sewage containing fat, wax, grease, petroleum, or mineral oil, whether emulsified or not, in excess of 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 degrees Fahrenheit (zero and 65 degrees Celsius).
(3) 
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.
(4) 
Any sewage containing odor-producing substances exceeding limits which may be established by the commissioner and/or director.
(5) 
Any radioactive wastes or isotopes or such half-life or concentration as may exceed limits established by the commissioner in compliance with all applicable state and federal regulations.
(6) 
Materials which exert or cause:
a. 
Unusual concentrations of inert suspended solids (such as, but not limited to sodium chloride and sodium sulfate).
b. 
Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions).
c. 
Unusual BOD, chemical oxygen demand, or chlorine demand in such quantities as to constitute a significant load on the water pollution control facility.
d. 
Unusual volume of flow or concentrations of waste constitution a "slug."
(7) 
Overflow from holding tanks or other receptacles storing organic wastes.
(8) 
Sewage with all concentration of pollutants in excess of the following limits:
Pollutant:
Concentration: Parts per million (mg/l)
Arsenic as A
0.05
Barium as Ba
5.0
Boron as Bo
5.0
Cyanides as CN (amenable)
0.1
Fluoride as F
20.0
Chromium (total)
1.0
Chromium (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.
(e) 
In accordance with C.G.S. § 22a-430 a permit from the commission of environmental protection and approval by the director 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.
A potential discharger after receiving approval by the director 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.
(f) 
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 subsection (d) of this section, and which in the judgment of the commissioner or director 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 C.G.S. § 22a-430(b):
(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.
If the commissioner permits the pretreatment or equalization of waste flows, the decision and installation of the equipment shall be subject to review and approval of the commissioner and director subject to the requirements of all applicable codes, ordinances and laws.
(g) 
The director shall have the right to reject the discharge of any wastes; or, require more stringent effluent limitations than required by the user's C.G.S. § 25-54i [22a-430] permit, the decisions of the commissioner notwithstanding.
(h) 
Grease, oil and gross particle separators shall be provided when in the opinion of the commissioner and/or director they are necessary for the proper handling in subsection (d)(2) of this section, or any flammable wastes, sands, 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 director and shall be located as to be readily and easily accessible for cleaning and inspection. In the maintaining of these separators, the owner 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 and director. Any removal and hauling of the collected materials shall be performed by a waste disposal firm which possesses a valid permit from the commissioner and director under C.G.S. § 25-54h [22a-429].
(i) 
Where pretreatment of flow-equalizing facilities are provided or required for any sewage, they shall be maintained continuously in satisfactory and effective operation by the owner at his expense.
(j) 
When required by the commissioner and/or director, 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 accessibly and safely located and shall be constructed in accordance with plans approved by the commissioner and/or director. 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.
(k) 
All industries discharging into a public sewer shall perform such monitoring of their discharge as required by the commission in any state discharge permit issued pursuant to C.G.S. § 25-54i [22a-430], 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 to the commissioner or the director.
(l) 
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 Wastewater," published by the American Public Health Association. Sampling methods, location, times, durations, and frequencies are to be determined on any individual basis subject to the stipulations and general conditions of the discharger's state discharge permit.
(m) 
No statement contained in this article shall be construed as preventing any special agreement or arrangement between the district and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the district 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.
(n) 
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.
(o) 
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.
(p) 
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 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.
(1) 
Immediately after an accidental discharge, the user must notify the director.
(2) 
Within five days following the accidental discharge, the user shall submit to the 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 WPCF, fish kills, aquatic plants, or any 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.
(3) 
A notice shall be permanently posted on the user's bulletin board or other prominent place advising employees whom to call in an event of a dangerous discharge. Employers shall ensure that all employees are advised of the emergency notification procedure.
[Code 1969, § 11-60; Ord. No. 174, 7-16-1985]
Septic tank materials, for purposes of these regulations, includes only wastewaters derived by pumping or draining septic tanks, cesspools, and other wastewater storage and treatment tanks and basins appurtenant to dwellings and commercial establishments which contain only domestic wastes. Materials derived from pumping or draining industrial wastewater storage and treatment tanks or basins shall not be accepted in the sewerage system by the authority.
[Code 1969, § 11-61; Ord. No. 174, 7-16-1985]
Fees charged for residential, commercial and industrial users of the sewer system shall be those fees passed by resolution of the authority and caused to be filed by the town clerk's office.
[Code 1969, § 11-62; Ord. No. 174, 7-16-1985]
The method that is used to calculate the sewer use charge is:
Cu
=
(
Ct
____
Vt
)
Vu x V
V
=
Infiltration factor.
Cu
=
User charge.
Ct
=
Total operation, maintenance and administration budget.
Vt
=
Total annual volume.
Vu
=
Volume contribution from user.
(1) 
Residential rate: Average residential water usage cubic foot times cost cubic feet treated divided by 12 equals monthly flat rate charged billed quarterly.
(2) 
Commercial rate. Cost per cubic foot times water usage (from water or sewage flow meter or estimate) with a minimum monthly charge.
[Code 1969, § 11-63; Ord. No. 174, 7-16-1985]
(a) 
Any customer who discharges sewage into the town sewage system which has particulates which exceed any of the following parameters will be subjected to high pollutant concentration usage charge:
 
Mg/l
Biochemical oxygen demand
200
Chemical oxygen demand
400
Suspended solids
200
(b) 
Calculation of user charge for sewage with above average pollutant concentration. Use charge per unit volume:
[
2
__
5
+
1
__
5
(
A
__
Am
)
+
1
__
5
(
B
__
Bm
)
+
1
__
5
(
C
__
Cm
)
]
Ec
A
=
A BOD of over 200 mg/l being discharged over a period of more than one hour or any volume over 20,000 gallons in a 24-hour period or any volume of sewage with a concentration over 400 mg/l. If less than 200 mg/l use 200 mg/l.
B
=
A COD of over 400 being discharged over a period of more than one hour or any volume over 20,000 gallons in a 24-hour period or any volume of sewage with a concentration over 800 mg/l. If less than 400 mg/l use 400 mg/l.
C
=
A suspended solids of over 200 mg/l being discharged over a period of more than one hour or any volume over 20,000 gallons in a 24-hour period or any volume of sewage with a concentration over 400 mg/l. If less than 200 mg/l use 200 mg/l.
2/5 = Volume factor
Am
=
Maximum allowable BOD without a high pollutant use charge—200 mg/l.
Bm
=
Maximum allowable COD without a high pollutant use charge—400 mg/l.
Cm
=
Maximum allowable suspended solids without a high pollutant use charge—200 mg/l.
Ec
=
Cost per unit volume for domestic sewage.
(c) 
The formula is based on the treatment system's operation and maintenance cost breakdown, as follows: Flow, 40 percent; BOD, 20 percent; COD, 20 percent; and SS, 20 percent.
[Code 1969, § 11-64; Ord. No. 174, 7-16-1985]
(a) 
Any commercial unit without a water meter should have a meter installed on the water line or in the sewer line at no cost to the authority. If the business does not do so, the director will estimate its bill.
(b) 
Any commercial unit that has a water meter but considers that only a small amount of that water goes into the sanitary collection system, should install a meter on its sanitary facilities or sewer line. If the business does not do so, the director will bill the business on its full water usage.
(c) 
Any commercial unit that has no water meter, but has a grinder pump, should install a "Running Time Meter" on the grinder pump. If the business does not do so, the director will estimate the bill.
(d) 
Any commercial unit that has a water meter which services the business and residential units will be billed as follows: The residential units will be charged at the monthly per unit rate in effect at the time; the commercial rate will be the monthly water usage in cubic feet minus the number of residential units times an average monthly factor determined by the director.
(e) 
Any commercial complex which has more than one commercial unit that receives its water from one meter will be billed as follows: The cubic feet of water used times the rate per cubic foot with a minimum charge of the number of commercial units on a meter times the per unit minimum charge in effect.
(f) 
All meters and their point of installation must be approved by the director or any readings from these meters will not be held valid.
(g) 
All meters will be sealed and read by the director.
[Code 1969, § 11-65; Ord. No. 174, 7-16-1985]
A residential unit may have its sewer use charge deleted for a period of not less than six months nor more than 12 months by having its sewer plugged by the director as long as a Mystic-type sewer trap is easily accessible at the residential rate.
[Code 1969, § 11-66; Ord. No. 174, 7-16-1985]
(a) 
Installation and removal. The plug will be installed by the director in the housetrap so as to cause that no sewage may leave the residential unit and enter the system. The capping of the housetrap will be locked wired so that the plug cannot be removed without breaking the wire. If the wire is not in its original position when the plug is removed, a penalty as described in section 15-84 will be levied. Anyone requesting a cap be installed or removed, must contact the building inspector at least ten working days in advance.
(b) 
Fees. Fees which may be imposed under this article are subject to the following:
(1) 
The sewer use charge will be deleted starting at the end of the quarter that the unit was plugged.
(2) 
The sewer use charge will be resumed as of the first of the month that the plug is removed.
(3) 
If the plug is tampered with or removed previous to a six-month period, all deleted charges will become due and payable.
(4) 
If the plug is not removed after 12 months, the billing will resume.
(5) 
There will be capping charge of equal to one month's sewer charge.
(c) 
Inspection. The director may inspect the plug at his discretion at any reasonable time.
[Code 1969, § 11-67; Ord. No. 174, 7-16-1985]
(a) 
Receiving area and sewer connections. The laying of sewer, installation of gas traps, fresh air vents, and cleanouts shall be done in accordance with "The Town of Groton Water Pollution Control Authority Regulation."
(1) 
The receiving structure must be constructed of concrete with approved wire mesh reinforcement and be at least two feet above grade and six inches below the grade. The structure will be at least four square feet or circular with sloped interior sides at a slope approved by the director.
(2) 
The collector pipe shall be located in the center of the receiving structure; not to protrude over one-half inch above the face on the bottom. This pipe shall be 1½ inches in diameter with the proper fitting so that connection to the equipment for the removal of waste from boats can be properly attached. This piping must be outfitted with an approved secure cap and anchors for locking of the cap. The 1½-inch pipe shall be of a length approved by the director and terminate into a six-inch cast iron pipe with approved gas traps and ventilation system.
(b) 
Use of receiving area. Upon the application for a permit, the permittee shall sign a statement of liability that only material that would benefit from the treatment facility be discharged and that if introduction is made into the system of toxic or undesirable material, the permittee will be held liable.
(c) 
Discharge into a holding tank receiving area determination of volume for sewer use charge. The director may estimate the flow or the property owner may install an approved RTM (running time meter) on all equipment that is used to pump sewage to the discharge receiving area. This equipment must have a discharge rating which is or can be converted to gallons or cubic feet of sewage. Sewage can only enter through an approved pumping unit not by gravity. All regulations of the authority apply as well.
[Code 1969, § 11-68; Ord. No. 174, 7-16-1985]
The director, through the water pollution control division administrative section, shall bill all users of the district sewer system.
(1) 
Billing will start upon receipt of the proper permit signed by the chairperson of the authority. Accounts approved on the first through the 14th of the month will be billed for that complete month. Accounts approved on the 15th through the end of the month will be billed for one-half a month.
(2) 
Residential bills are billed quarterly on a flat rate on a per month basis.
(3) 
Commercial bills will be billed on a monthly basis on water usage from information obtained for the previous month, quarter or bi-annual readings.
(4) 
Grinder pump accounts will be credited an amount as authorized by the authority on a per grinder pump basis monthly to help offset the homeowner's electrical cost.
(5) 
Interest shall be levied on all payments not received by the first of the following quarter for residential, and commercial interest will be levied on payments received after 30 days of billing date, at an interest rate approved by the tax collector.
(6) 
Interest shall not be charged on payments received the first business day of the month that an account becomes delinquent.
(7) 
The director may adjust any sewer usage bill that is in error.