A. 
It shall be unlawful for any person to place, deposit, or permit to be deposited in any unsanitary manner on public or private property within the Town of Hampton or in any area under the jurisdiction of the Town, any human or animal excrement, garbage, or objectionable waste.
B. 
There shall be no additional out of town sewage and sewer systems added to the Hampton sewer system, except as approved by the Town through Agreements for Treatment and Disposal of Wastewater for however long as those Agreements remain in effect.
C. 
It shall be unlawful to discharge to any natural outlet or municipal storm sewer within the Town, or in any area under the jurisdiction of the Town, any wastewater or other polluted waters, except where suitable treatment has been provided in accordance with subsequent provisions of this Ordinance and with State and Federal laws and regulations.
D. 
Use of Sanitary Sewers. Except as specifically designated by the Town, sanitary sewers shall be used only for the conveyance and disposal of sanitary sewage, and for industrial wastes that are not objectionable, as hereinafter provided. No sanitary sewer shall be used to receive, convey, or dispose of any storm or surface water, subsoil drainage, or unpolluted water. Unpolluted waters typically include stormwater, groundwater, flood water, roof runoff, subsurface drainage, or cooling water. No industrial wastewater shall be directed to a sewer that is not connected to the POTW or a state or federally permitted facility.
E. 
Sewers for Intended Use Only. No person shall discharge or cause to be discharged into any public sewer of the Town, or into any fixture that thereafter discharges into a public sewer of the Town, any waste or substance other than that for which the particular sewer is intended, designed, and provided. If the intended or designated use of a particular sewer is unclear, the Director will make a determination. This determination shall be final and binding.
F. 
Any person who shall maliciously, willfully, or negligently break, damage, destroy, uncover, deface, or tamper with any structure, appurtenance or equipment that is part of the POTW shall be liable for damages to the owner thereof, and shall be arrested on the charge of Criminal Mischief (Ref: RSA 634:2).
G. 
Applicable Permit Required. No person shall discharge into any public sewer of the Town, or into any fixture that discharges into a public sewer, any substance until all applicable approvals and permits have been obtained.
H. 
All wastewater shall be conducted into the public sewer system if there is a public sewer located within a 200-foot radius and further provided that any portion of the public sewer located in the downstream service area is not hydraulically surcharged. The determination of whether a public sewer is hydraulically surcharged shall be made by the Director, who shall make his determination based upon the data recorded in the Town of Hampton, New Hampshire 201 Facilities Plan for Wastewater Collection and Treatment, amendments thereto and consultation with Engineering Professionals contracted to perform necessary calculations to make such determination. This subsection does not apply to failed septic systems as specified in 2.1.K.
I. 
Except as hereinafter provided, it shall be unlawful to construct, repair, or maintain any privy, privy vault, septic tank, cesspool, or other facility intended or used for the disposal of wastewater in any area where a public sewer is available, as described in paragraph (J) below. Any septic tanks, cesspools, and similar private wastewater disposal facilities shall be cleaned of sludge and crushed and/or filled with soil as approved by the Director and their use shall be discontinued. The use of portable chemical toilets is allowed at construction sites and for other temporary purposes provided the wastes are properly disposed of at a lawful disposal facility.
J. 
During construction of a new public sewer, or while making repairs or replacing an existing public sewer, a sewer stub shall be installed for a building, or proposed building, located on a lot of record, if such building is located within a 200-foot (200 ft.) radius of the existing public sewer. The owner(s) of all houses, buildings, or properties used for human occupancy, employment, recreation, or other purposes, situated within the Town and abutting on any street, alley, or right-of-way in which there is now located a sanitary sewer of the Town, is hereby required at the owner(s)' expense to install suitable toilet facilities therein, and to connect such facilities directly with the proper public sewer. All costs and expenses associated with the installation and connection of the remainder of the building sewer service lateral, including connection to the structures served, shall be the responsibility of the property owner. An exception to this requirement is provided to any home business operated by a family unit in a separate building, and any other building used for recreational purposes, which shall have readily accessible toilet facilities, as approved by the Building Inspector. The requirement for connection may be waived for certain undeveloped properties when permitted by the Building Inspector. The requirement for connection may be waived when permitted by the Director if the building is already connected to a properly functioning septic system, however, such system may not be repaired, replaced or expanded, and the owner shall connect directly to the public sewer when the septic system no longer functions properly.
If the building, or proposed building, is located beyond a 200-foot (200') radius of the existing or new public sewer construction, and the owner desires to connect to the public sewer, then all costs associated with an extension of the public sewer to service the building will be the responsibility of the owner. The owner shall indemnify the Town for any loss or damage that may be directly or indirectly occasioned by the installation of the building sewer service lateral. After construction of the building sewer, the owner shall be obligated to pay all costs or expense of operation, repair, maintenance, and reconnection (if needed) of the entire building sewer beginning at the public sewer and ending at the building.
K. 
Where a sanitary sewer is not available under the provisions of paragraph (J) above, the building sewer shall be connected to a private wastewater disposal system complying with the provisions of RSA 485-A, or revisions thereto, of the State of New Hampshire and rules, regulations, standards, and procedures promulgated therein. The owner(s) shall operate and maintain the private wastewater disposal facilities in a sanitary manner at all times, at no expense to the Town. No industrial waste shall be directed to a private sanitary sewage disposal system.
L. 
If the owner of any building located within the Town to which public sewer is available, after 90-days' notice from the Town, fails to connect such building as required in paragraph 2.1.J, the owner shall be in violation of this Ordinance. The Town shall have full authority upon the issuance of a court order to enter on the owner's property to do whatever is necessary to properly connect the improved property into the public sewer. The Town may make such connection and may collect from such owner the costs and expenses thereof by such legal proceeding as may be permitted by law.
A. 
All new and reconstructed building sewers shall be constructed in accordance with the current building code, plumbing codes, and all state and federal requirements.
B. 
No person(s) shall uncover, make any connection with or opening into, alter, or disturb any building sewer service lateral or public sewer or appurtenance thereof without first obtaining authorization from the Director. Building sewers shall only be installed and/or disconnected upon issuance of a permit.
C. 
No person shall open or excavate any street, public way or place without first obtaining a Street Excavation Permit from the Town of Hampton Department of Public Works. An application fee, as required in the User Fee Schedule, shall be paid to the Town at the time the application is filed. All street excavations shall comply with all the provisions, including bonding and insurance provisions, set forth in the Town of Hampton's regulations governing work in public ways and places. (Pursuant to Town Ordinance 769).
D. 
For residential and commercial services to disconnect from the public sewer (When a building is demolished, moved, or otherwise disturbed - including a building to be replaced) the owner(s) or their agent must complete and submit a Sewer Disconnection Permit. An application fee, as required in the User Fee Schedule, shall be paid to the Town at the time the application is filed. This permit will be reviewed by the Director and may take up to three (3) working days to complete review. After approval, two days' notice must be given to the Sewer and Drain Division before starting work. The building sewer must be capped at the property line if the service lateral is under 100 ft. For services greater than 100 ft the Director will make a determination with the contractor in the field. Capped services must be inspected by the Town and shall be exposed at time of inspection.
E. 
For residential and commercial services, the owner(s) or their agent shall complete and submit to the Town a Sewer Connection Permit application at least thirty (30) days prior to the proposed date of the service connection. The Sewer Connection Permit shall be supplemented by completed plans, specifications, or other information (including pollution prevention studies) considered pertinent in the judgement of the Director. The Town shall have the option of denying an application if, in the opinion of the Director, the contractor is not qualified. An application fee, as required in the User Fee Schedule, shall be paid to the Town at the time the application is filed. A copy of the approved Sewer Connection Permit signed by the Director will serve as evidence of approval. Once approved, two days' notice must be given to the Sewer and Drain Division before starting work. The service must be installed and tested by the contractor and inspected by the Town.
F. 
In addition to obtaining a permit from the Town, a Sewer Connection Permit shall be obtained from NHDES, as required under Env-Wq 703.07 as amended.
G. 
A separate and independent building sewer shall be provided for every building, except where one building stands at the rear of another on an existing lot, and no private sewer is available (or can be constructed) to the rear of the building. In these instances, the front building sewer may be extended to the rear building and the whole considered as one building sewer, if the buildings are under the same ownership. The Town will not assume any obligation or responsibility for damage caused by or resulting from any such single connection. Grouping of one or more buildings on a single building sewer shall not be permitted, except under special circumstances and for good cause, and then only after written permission subject to such rules, regulations and conditions as may be prescribed is received from the Director. Existing building sewers may be used to connect with new buildings only when they are found, upon examination and test by the Sewer and Drain Division, to meet all requirements of this Ordinance and each building is under the same ownership.
H. 
When an existing lot is subdivided and a singular building sewer was used to service multiple buildings, a new building sewer service lateral for the newly created lot will be required to service the building(s) on said lot.
I. 
The size, shape and construction of building sewer or street laterals shall be subject to approval by the Director or designee, and shall meet at a minimum, the following criteria:
1. 
Pipe diameter shall be at least four inches (4"),
2. 
Pipe slope shall be at least 0.01 feet per foot (1%),
3. 
Pipe shall have a minimum design flow velocity of two feet per second (2 ft/s) when flowing full.
4. 
A six-inch (6") building sewer service lateral shall be used for no more than three (3) connections into a single sewer service, with calculations confirmed by a qualified engineer and/or plumber.
J. 
Force main building sewer will be permitted, subject to approval by the Town, where gravity flow is not feasible. The force main shall be sized to maintain flow velocities of three feet per second (3 ft/s) and shall be furnished with adequate valving to provide shut off capability and protection against reverse flows.
K. 
Building sewers shall be polyvinyl chloride (PVC) sewer pipe conforming to the following:
1. 
Building drains (within the building) must not be less than three inches in diameter and shall consist of PVC Schedule 40 pipe.
2. 
All gravity PVC pipe and fittings shall be Class SDR-35 or Schedule 40 and shall meet or exceed all requirements of ASTM Specification D3034 "Standard Specification for Type PSM Polyvinyl Chloride (PVC) Sewer Pipe and Fittings," or ASTM Specification D2241 "Standard Specification for Polyvinyl Chloride (PVC) Pressure-Rated Pipe (SDR Series)."
3. 
All pipe used for gravity sewer shall have integral bell and elastomeric gasket joints, solvent welded joints or approved by the Director.
4. 
Minimum pipe stiffness at 5% deflection shall be 46 psi when tested in accordance with ASTM Specification D2412 "Standard Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading."
5. 
The use of "fuseable" HDPE force main piping and/or other force main materials shall only be allowed as approved by the Director.
6. 
Standard pipe lengths shall be used.
7. 
All fittings and accessories shall be manufactured and furnished by the pipe supplier and have bell and/or spigot configurations identical to that of the pipe to which they are connected.
L. 
All joints and connections shall be made watertight to the standard set forth by the most recent National Plumbing Code. No paint, varnish, or other coating shall be permitted on the jointing material until after the joint has been tested and approved.
M. 
At the point of connection of a building sewer to a public sewer, a standard wye fitting and a one-eighth (45-degree) bend shall be used. No lateral connection shall be made to the main sewer which permits the flow into the sewer from the lateral to enter at right angles. The wye and one-eighth bend fittings shall be inserted in the public sewer at the time of its construction for each proposed lot of either immediate or future development. A cleanout shall be installed where the sewer stub connects to the building sewer connection (at the property line) with a tee-wye and is the responsibility of the property owner. The location of all lateral connections shall be shown along with at least two dimensional ties on a drawing. Two copies of this drawing showing the as-built location of the lateral connection(s) shall be furnished to the Town.
N. 
When any street lateral is to serve a school, hospital, public housing, or similar institution; or is to serve a complex of industrial or commercial buildings, then such street lateral shall be connected to the public sewer through a manhole. Connections to existing manholes shall be made as directed by Director; if required, a new manhole shall be installed in the public sewer.
O. 
An interior clean-out fitting and backwater valve (backflow preventer) shall be provided for each building lateral at a readily accessible location, preferably just inside the basement wall. The fitting shall contain a 45-degree branch with removable watertight plug, and be positioned to accommodate sewer cleaning equipment. Buildings and mobile homes without foundations shall have a clean-out installed on the outside and shall be the responsibility of the homeowner to maintain. The clean-out shall be of similar material as the building sewer or as otherwise required by the Director, and shall be provided with a secured cap at the ground level to grade.
P. 
Whenever possible, the building sewer shall be brought to the building at an elevation below the basement floor. In all buildings in which any building drain is too low to permit gravity flow to the public sewer, sanitary sewage conveyed by such building drain shall be lifted by an approved means and discharged to the building sewer at the owner's expense.
Q. 
Floor drains in commercial or industrial buildings and all outside facilities such as showers and sinks (this does not include yard drains) shall be allowed to connect with the public sewer system in the case where suitable holding tanks with baffles are provided to prevent dirt and oils from entering the public sewer system. If holding tanks are to be used, they shall have easy access for periodic maintenance, cleaning and inspection.
R. 
All excavation required for the installation of a building sewer or street lateral shall be open trench work, unless otherwise approved by the Sewer and Drain Division. Pipe laying and backfill shall be performed in accordance with NHDES Env-Wq 700. The depth of cover over the pipe shall be sufficient to afford protection from frost, but in no case, shall such depth be less than four feet (4') unless prior approval has been granted by the Director, in writing. In such cases, an insulation board shall be installed over the pipe.
S. 
Streets, sidewalks, parkways, and other public property disturbed in the course of work shall be restored in a manner satisfactory to the Town.
T. 
All sewer pipes shall have their locations marked by detectable tracer tape.
1. 
The tape shall be placed two feet (2') above the pipe.
2. 
The tape shall be six inches (6") in width, with the words "Buried Sewer Line Below" permanently and indelibly printed on it.
3. 
The tape shall be compatible for use with magnetic detectors. It shall not require electrical connection for location.
4. 
The tape shall consist of a continuous aluminum foil core inseparably bonded on both sides with tough high-density cross-laminated plastic films. Tape color shall be in accordance with the latest American Public Works Association (APWA) Uniform Color Code standards for buried utility markings.
U. 
The owner(s) shall notify the Sewer and Drain Division when the building sewer is ready for inspection and connection. Such notice shall be provided a minimum of 72 hours prior to the time of connection to the public sewer. Sewer connection and testing shall occur under the supervision of the Sewer and Drain Division. The owner is responsible for all provisions required to test the point of connection.
V. 
No new or repaired building sewer shall be covered until it has been inspected and approved by the Town. Sewer pipe shall be properly bed at the time of inspection. Should the work not be ready for inspection, be completed without the appropriate permits or inspection or require additional efforts to pass inspection, a re-inspection fee will be accessed in accordance with the User Fee Schedule. No further inspections will occur prior to the Town's receipt of the fee.
W. 
Upon receipt of notice from the Town, the Owner(s) shall remedy any unsatisfactory condition with respect to the building sewer. If this does not occur within 45 days (or less, as necessary to protect the health and safety of the Town residents), the Town many remedy any unsatisfactory conditions and collect from the Owner(s) the costs and expenses thereof. The Town shall have the full authority upon the issuance of a court order to enter on the owner's property to do whatever is necessary to remedy the unsatisfactory condition.
A. 
New sewers and sewer extensions shall be properly designed and permitted in accordance with NHDES Administrative Rules Env-Wq 700 "Standards of Design and Construction for Sewerage and Wastewater Treatment Facilities."
B. 
Plans, specifications, and methods of construction shall be submitted to, and receive approval from the applicable Town Boards, the Director, and NHDES before construction may proceed. Plans, specifications and other required information shall be submitted at least 45 days in advance of the anticipated project start date. The design of sewers shall anticipate and allow for flows from all possible future extensions or developments within the applicable sewershed, being compatible with the Section 201 Facility Plan as amended.
C. 
Should the Town determine the proposed sewer or sewer extension requires incidental work based on anticipated volume and POTW capacity, in the form of treatment plant upgrades, pumping stations, force mains, or other supplementary equipment, the Owner shall be responsible for all such costs.
D. 
Plans, specifications, and methods of installation shall conform to the requirements of this Ordinance. Components and materials not covered in this Ordinance, such as pumping stations, lift stations, or force mains shall be designed in accordance with paragraph (A) above, and shall be clearly shown and detailed on the plans and specifications submitted for approval. When requested, the Owner of the proposed installation shall submit to the Town all design calculations and other pertinent data to supplement the plans and specifications review. All costs associated with the engineer's review of the plans and specifications shall be paid by the Owner.
E. 
The sewer installation shall be subject to periodic inspection by the Sewer and Drain Division. The expense for this inspection shall be paid by the Owner as part of the sewer collection permit. Should the work require additional efforts to pass inspection, a re-inspection fee will be assessed as detailed in the User Fee Schedules. No further inspections will occur prior to the Town's receipt of the fee.
F. 
The sewer must pass final sewer testing, consisting of a low-pressure air test for the pipe and a vacuum test for the manhole, and receive approval from the Sewer and Drain Division, before any building sewer is connected.
Line acceptance test (gravity sewers):
1. 
Equipment:
a. 
Pneumatic plugs shall have a sealing length equal to or greater than the diameter of the pipe to be inspected.
b. 
Pneumatic plugs shall resist internal test pressures without requiring external bracing or blocking.
c. 
All air used shall pass through a single central panel.
d. 
Connect 3 individual hoses:
i. 
From the control panel to the pneumatic plugs for inflation.
ii. 
From the control panel to the sealed sewer line for introducing the low-pressure air.
iii. 
From the sealed sewer line to the control panel for continually monitoring the air pressure rise in the sealed line.
2. 
Testing Pneumatic Plugs:
a. 
Seal test all pneumatic plugs prior to using them in the actual test.
b. 
Lay one length of pipe on the ground and seal both ends with the pneumatic plugs to be tested.
c. 
Pressurize the sealed pipe to 5 psig.
d. 
The pneumatic plugs are acceptable if they remain in place without bracing.
3. 
Testing Sewer Pipeline:
a. 
After the sewer pipe has been cleaned and the pneumatic plugs checked, place the plugs in the sewer line at each manhole and inflate them.
b. 
Introduce low pressure air into the sealed sewer pipeline until the air pressure reaches 4 psig greater than the average groundwater pressure.
c. 
Allow a minimum of 2 minutes for the air pressure to stabilize to a minimum of 3.5 psig greater than the groundwater pressure. Groundwater is assumed to be at ground surface unless the Contractor can prove otherwise by test pitting.
d. 
After the stabilization period, disconnect the air hose from the control panel to the air supply.
e. 
The pipeline will be acceptable if the pressure decrease is not greater than 1/2 psig in the time stated in the following table for the length of pipe being tested:
Time (Min.) for Length of Pipe
Pipe Diameter
(inches)
0-100 ft
101-200 ft
201-300 ft
301-400 ft
4
2.0
2.0
2.0
2.0
6
3.0
3.0
3.0
3.0
8
4.0
4.0
4.0
5.0
10
5.0
5.0
6.0
8.0
12
5.5
5.5
8.5
11.5
15
7.0
8.5
13.0
17.0
18
8.5
12.0
19.0
25.0
21
10.0
17.5
26.0
35.0
24
11.5
23.0
34.0
45.5
27 and larger
14.5
29
43.0
58.0
4. 
Test Results: If the installation fails the low-pressure air test, determine the source of leakage, repair or replace all defective materials and/or workmanship and repeat low pressure air test.
Manhole Vacuum Test:
1.
The manhole shall be tested by a vacuum test after assembly of the manhole, connection piping and backfilling. Vacuum testing to be conducted prior to construction of invert channels.
2.
Plug all lifting holes completely with non-shrink grout.
3.
Properly tighten all boot clamps and brace all plugs to prevent them from being sucked into the manhole.
4.
Install the testing equipment according to the manufacturer's instructions.
5.
A vacuum of 10 inches of Hg shall be drawn on the manhole and the loss of 1 inch of Hg vacuum timed. The manhole shall be considered to have passed the test if the time for the loss of 1 inch of Hg vacuum is:
a.
Greater than 2 minutes for manholes less than 10-feet deep.
b.
Greater than 2.5 minutes for manholes 10 to 15-feet deep.
c.
Greater than 3 minutes for manholes more than 15-feet deep.
6.
If the manhole fails the initial test, the Contractor shall locate the leak(s) and make repairs. The manhole shall be retested until a satisfactory test result is obtained.
A. 
No person shall introduce or cause to be introduced into the POTW any pollutant or wastewater that causes pass through or interference or process upset or loss of treatment ability. These general prohibitions apply to all users of the POTW whether or not they are subject to categorical pretreatment standards or any other Federal, State, or local pretreatment standards or requirements.
B. 
Any connection or method of conveying stormwater or groundwater into the public sewer system is prohibited. All waste pipes, special waste, and drains from water closets, washing machines, sinks, tubs, showers, etc., must have an opening above the grade of the adjacent highway. For additional protection, mechanical means to prevent backflows (backflow preventatives) are required. Existing connections with openings that are below the grade of the adjacent highway equipped with/without backflow preventatives or similar mechanical devices that existed prior to the effective date of this provision may remain at the full responsibility of the owner. Periodic inspection and maintenance are recommended to ensure against the backflow of sewage from the street sewer into the premises.
C. 
No person shall introduce or cause to be introduced into the POTW the following pollutants, substances, and wastewater:
1. 
Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, gas, solid, or any substance that can generate or form any flammable, combustible or explosive substance, fluid, gas vapor or liquid when combined with air, water or other substances present in sewers, including, but not limited to, waste streams with a closed-cup flashpoint of less than 140° F. (60° C.) using the test methods specified in 40 CFR 261.21;
2. 
Wastewater having a pH less than 6.0 or greater than 10.0, as measured at the point of connection to the sanitary sewer or other available monitoring location, or otherwise causing corrosive structural damage or hazard to the POTW equipment, or personnel, or with alkalinity in such quantities that contributes to or cause the POTW influent pH to exceed 8.0. (NOTE: The Town will accept Septage Waste disposed of at the WWTP with characteristics per section 12.1. Industrial Waste may only be discharged according to the limits specified within the individual permit based on the Town's determination that the potential of adverse impact to the POTW is reasonably absent.);
3. 
Solid or viscous substances including water or wastes containing fats, wax, grease, or oils, whether emulsified or not, or containing substances that can solidify or become viscous at temperatures between 32 and 150° F. (0-65° C.), in amounts that could cause obstruction of the flow in the POTW over 200 ppm;
4. 
Waters or wastes containing strong acid pickling waste and concentrated plating solutions whether neutralized or not;
5. 
Pollutants, including oxygen-demanding pollutants (BOD, COD, etc.), or chlorine demand requirements released in a discharge at a flow rate and/or pollutant concentration that, either singly or by interaction with other pollutants, will cause interference with the POTW, constitute a hazard to humans or animals, create a public nuisance, exceed national categorical pretreatment standards, or cause pass through, or have an adverse effect on the receiving stream;
6. 
Wastewater having a temperature greater than 140° F. (60° C.), or that will inhibit biological activity in the wastewater treatment facility resulting in interference, and wastewater that causes the temperature at the introduction into the wastewater treatment facility to exceed 104° F. (40° C.);
7. 
Wastewater containing more than 25 mg/L of petroleum oil, non-biodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass through;
8. 
Pollutants that result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause worker health and safety problems;
9. 
Trucked or hauled pollutants, except at discharge points designated by the Director in accordance with Section 4.9 of this Ordinance;
10. 
Hazardous wastes in accordance with Env-Hw 400, including but not limited to paints, stains, thinners, pesticides, herbicides, anti-freeze, transmission and brake fluids, motor oil and battery acid;
11. 
Wastewater causing, alone or in conjunction with other sources, the wastewater treatment facility's effluent or sludge to fail a toxicity test.
D. 
No person shall introduce or cause to be introduced into the POTW the following pollutants, substances, and wastewater, unless specifically authorized by the Director in a permit.
1. 
Wastewater that impacts color that may not be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently could impact color to the treatment facility's effluent, thereby violating the Town's NPDES permit;
2. 
Noxious or malodorous liquids, gases, solids, or other wastewater that, either singly or by interaction with other wastes, could be sufficient to create a public nuisance or a hazard to life, or to prevent entry into the public sewers for maintenance or repair;
3. 
Wastewater containing any radioactive wastes or isotopes, and then only in compliance with applicable State or Federal regulations;
4. 
Storm water, flood water (salt or brackish), surface water, groundwater, artesian well water, roof runoff, subsurface drainage, condensate, deionized water, non-contact cooling water, or otherwise unpolluted wastewater;
5. 
Swimming pool drainage which does not meet the following criteria:
i. 
Pool drainage water shall have a total chlorine residual of zero (0) mg/L, which has been attained by natural or chemical means;
ii. 
The test procedure verifying zero chlorine residual shall be observed by the Director prior to pool draining.
iii. 
The Town shall be notified a minimum of 72 hours in advance of draining the pool.
6. 
Sludges, screenings, or other residues from the pretreatment of industrial wastes;
7. 
Medical wastes, pharmaceutical waste, or radiological waste;
8. 
Quantities or concentrations of detergents, surface-active agents, or other substances that could be sufficient to cause excessive foaming in the POTW;
9. 
Wastewater that could cause a reading on an explosion hazard meter at the point of discharge into the POTW, or at any point in the POTW, of more than 10 percent (10%) of the Lower Explosive Limit of the meter;
10. 
Garbage that has not been shredded to such a degree that all particles will be transported freely under the flow conditions normally prevailing in public sewers, with no particles greater than one-half inch (1/2") in any direction. 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. 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 Director;
11. 
Any quantities of flow, concentrations, or both which constitutes a "Slug" as defined herein;
12. 
Waters or wastes which, by interaction with other water or wastes in the treatment works, release dangerous or noxious gases, from suspended solids that affect the operation of the collection system, or create a condition deleterious to structures and treatment processes;
13. 
Any materials that exert or cause unusual concentrations of inert suspended solids, such as, but not limited to: Fullers earth, lime, slurries, and lime residues, or of dissolved solids, such as, but not limited to: sodium chloride and sodium sulfate;
14. 
Wastewater permit limit established for that pollutant by the Town.
A. 
The Federal categorical pretreatment standards are found at 40 CFR Chapter 1, Subchapter N, Parts 405-471. EPA shall be the control authority for industrial users subject to categorical pretreatment standards. Industrial users are responsible to the EPA for compliance with categorical pretreatment standards and the requirements of 40 CFR Part 403. Categorical industrial users shall provide the Town with copies of any reports to, or correspondence with, the EPA relative to compliance with the categorical pretreatment standards.
B. 
The industrial user is responsible for determining the applicability of categorical pretreatment standards. The industrial user may request that EPA provide written certification on whether the user is subject to the requirements of a particular category.
A. 
All persons discharging industrial wastes into any sewers (public or private) connected to the Town's POTW shall comply with applicable Federal requirements and State standards for pretreatment of wastes (as amended), in addition to the requirements of this Ordinance.
B. 
Local regulatory controls established by the Town for the discharge of pollutants of concern, as set forth herein (referred to as "local limits"), and all State pretreatment standards shall apply, whichever is most stringent. Pollutants of concern include any pollutant that might reasonably be expected to be discharged to the POTW in quantities that could pass through or interfere with the POTW, contaminate the biosolids, or adversely impact human health or safety.
C. 
Maximum allowable industrial limitations. The Director will not issue permits that allow pollutants, in combination with projected non-industrial and non-itemized industrial loads that will cause the Town to violate its NPDES permit, or that will prevent disposal of sludge.
D. 
Methodology. All mass loading limitations for metals represent total metals, regardless of the valance state, or the physical or chemical form of the metal. To administer allowable loadings through permits, the Director may impose concentration-based limitations, or mass limitations in accordance with Section 2.10. For industrial discharge applications, the values written into the Industrial Discharge Permits for pollutants shall apply at the end of the industrial wastewater and prior to dilution with non-industrial wastewater.
Permit limits will be developed based on the identification of industrial users known to be discharging each pollutant. Unless specifically identified in a permit, an industrial user is not allowed to discharge pollutants at concentrations significantly greater than background concentrations. For the purposes of this requirement, significant means twenty percent (20%) greater than the background concentrations. Background concentrations are determined by routine testing at the headworks of the POTW. Should the Town develop Local Limits in the future, those levels will be used to determine industrial discharge limits.
Daily concentration (or mass loading) is the concentration (or mass) of a pollutant discharge, determined from the analysis of a flow-composited sample (or other sampling procedure approved by the Director) representative of the discharge over the duration of a 24-hour day or industrial operating schedule of less than 24-hours.
E. 
Special Agreements. No statement contained in this Article except for Sections 2.5 and 2.6 shall be construed as preventing any special agreement or arrangement between the Town and any industrial user whereby an industrial waste of unusual strength may be accepted by the Town for treatment. The Director, with the approval of the Board of Selectmen, may allow for such arrangements provided the said agreements do not contravene any requirements of existing Federal or State laws, and/or regulations promulgated thereunder, are compatible with any user charge system in effect, and do not waive applicable Federal categorical pretreatment standards. Special agreement requests may require submittal of a pollution prevention plan that specifically addresses the discharge for which a special agreement is requested.
No user shall ever 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 the requirements of this Ordinance unless expressly authorized by an applicable pretreatment standard or requirement. The Director may impose mass limitations on users who are using dilution to meet applicable pretreatment standards or requirements, or in other cases when the imposition of mass limitations is appropriate.
Users implementing process changes may request that compliance be determined based on mass limitations in lieu of concentration limitations. Such mass-based limitations will be calculated from the permitted concentration-based limitations and flows and shall be equivalent to or less than the mass discharge in effect at the time of the request. The intent of a mass-based limit is to encourage and allow pollution prevention and/or water conservation measures that might cause a facility to increase pollutant concentrations in their discharge even though the total mass of the pollutant discharge does not increase, and may in fact decrease. Decisions on granting requests for mass-based compliance limitations will be based on user-specific information and current operating conditions of the POTW and will be at the discretion of the Director. Implementation of mass-based limitations may not contravene any requirements of Federal or State laws and/or regulations implemented thereunder, and may not waive applicable Federal categorical pretreatment standards.
A. 
Private sewer systems that discharge to the Town's POTW are responsible for all collection system mapping, and must perform all collection system operation and maintenance activities as required by the Town of Hampton NPDES permit. Operation and maintenance activities, and documentation of said activities, shall be performed at the Owner's expense. Documentation/records of operation and maintenance activities shall be provided to the Director within thirty (30) days of performing the work, or from the request of the Director that the work be performed.
B. 
The Town shall be allowed to inspect the work at any stage of construction, and, in any event, the owner shall notify the Town when the work is ready for final inspection and before any underground portions are covered (including beneath a basement floor). This inspection shall be made within 72 hours of the receipt of notice by the Town, and a certificate of operation shall be issued by the Director or his designee if the system is approved.
C. 
The Town may require private sewer systems to eliminate extraneous infiltration and inflow greater than 300 gallons per day per inch-diameter-mile, or the current Town standard, from the private system. The Owner shall bear the cost for the study, documentation, and performance of all remedial work, as approved by the Director.
A. 
The discharge standards and requirements set forth in Article II are established for the purpose of preventing discharges to the POTW that would harm either the public sewers, wastewater treatment process, or equipment, would have an adverse effect on the receiving stream, or would otherwise endanger lives, limb, public property, or constitute a nuisance.
B. 
To meet these objectives, the Director may, from time to time and with approval from the Board of Selectmen, review and set more stringent standards or requirements than those established in Section 2.4, 2.5, and 2.6 if, in his opinion, such more stringent standards or requirements are necessary to meet the above objectives. At a minimum, this review will be performed at least once every three years or more frequently if required by the Director. In forming his opinion, the Director may give consideration to such factors as the quantity of waste in relation to flows and velocities in the sewers, materials of construction of the sewers, the wastewater treatment process employed, capacity of the wastewater treatment facility, degree of treatability at the wastewater treatment facility, pollution prevention activities, and other pertinent factors. The limitations or restrictions on materials or characteristics of waste or wastewaters discharged to the sanitary sewer shall not be exceeded without the approval of the Board of Selectmen.
C. 
The Director shall allow affected industrial users reasonable time to comply with any changes to the local limits. The conditions and schedule for compliance shall accompany the written notification of amended local limits.