[Adopted 4-29-1981 by L.L. No. 3-1981
as Ch. 98, Art. II, of the 1975 Code]
A.
APPLICANT
APPROVED PLANS
CENTRAL WATER SYSTEM
LOCAL LAW
USER
Unless the contents specifically indicate otherwise,
the meaning of the terms used herein shall be as follows:
Any person, partnership, corporation, company or other party
which proposes to design and construct a central water system under
these rules and regulations and the local law. It shall also mean
to include the "applicant's" engineer, contractor, agent or representative.
Those drawings and specifications detailing the construction
of the central water system as approved by the Town of LaGrange, the
New York State Department of Environmental Conservation, the New York
State Department of Health, the Dutchess County Department of Health
and any other agency, board or related governmental units.
A water supply and distribution system serving two or more
users.
Local Law No. 5 of the year 1978 of the Town of LaGrange,
"A Local Law Establishing Rules and Regulations for the Installation
of Water Supply and Distribution Systems in the Town of LaGrange."
[1]Any residential or nonresidential individual, firm, company,
association, society, corporation or group using the central water
system.
[1]
Editor's Note: Refers to the local law which
originally enacted this article, prior to adoption via the 1981 Code
Adoption Local Law.
B.
All other definitions shall be as stated in this article.
A.
It is the purpose of these rules and regulations to
establish minimum and acceptable standards and specifications for
the installation of water supply and distribution systems within the
Town of LaGrange.
B.
No building permits will be issued for any user supplied
by a central water system until such time as the Town has determined
that the central water system contains sufficient capacity to adequately
supply water to said user and that the construction of the central
water system serving said user is in conformance with the approved
plans and these rules and regulations.
A.
Throughout these rules and regulations, certain documents
shall be referred to. These documents shall be made a part of these
rules and regulations as though they were printed in full herein.
B.
Unless noted otherwise, the latest edition, together
with all changes and amendments, of the referenced documents shall
apply.
C.
Local Law No. 3 of the year 1978 of the Town of LaGrange,
"A Local Law Regulating the Establishment, Construction, Installation,
Extension, Enlargement, Acquisition, Operation and Use of Water Supply
and Distribution Systems in the Town of LaGrange," shall be made a
part of these rules and regulations.[1] Wherever there is a conflict between the local law and
these rules and regulations, the local law shall govern.
A.
Times of inspection.
(1)
Inspections will be made on weekdays (no holidays)
between the hours of 8:00 a.m. and 4:00 p.m.
(2)
No work will be started until a permit has been obtained
from the Town as required by local law.
(3)
The form of the permit shall be in the form of Attachment
A[1] herein. The fee for the permit is provided for in § 233-4 of this chapter.
[Amended 7-22-2009 by L.L. No. 2-2009]
[1]
Editor's Note: A copy of the water permit
form, referred to herein as "Attachment A," is on file in the office
of the Town Clerk.
(4)
Prior to construction, the applicant shall submit
to the Town a construction schedule detailing when the various items
of work will be performed.
B.
Securities required. Prior to any construction, the
applicant shall post the following securities with the Town Clerk:
(1)
A certificate of insurance naming the Town and its
agents and representatives as the insured, in the amounts and form
designated by the Town.
(2)
Performance bonds as required by the local law.
(3)
Operation and maintenance bond and guaranty as required
by the local law.
(4)
Written agreements as required by the local law.
C.
Prework conference. Prior to the commencement of any
work, there shall be a prework conference between the Town, the Engineer,
the applicant and his contractor to go over these rules and regulations
and any other requirements established by the Town. It is the intent
of the prework conference to make all parties aware of the requirements
governing the proposed work.
A.
The type, size and class of materials required for
construction of the work specified herein shall be as called for herein
or on the approved plans. All materials shall be tested at the place
of manufacture as required by the standard specifications to which
the material is manufactured or as required herein. The applicant
shall, at his own expense, furnish, in duplicate, to the Engineer,
sworn certificates of such tests. In addition, the Town reserves the
right to have any or all materials inspected or tested, or both, by
an independent inspection service at either the manufacturer's plant
or elsewhere.
B.
All materials shall be subject to a careful inspection
in the presence of the Engineer or his authorized inspector just before
being laid or installed and shall be subject to his approval before
acceptance. All material found, during the progress of the work, to
have cracks, flaws or other defects shall be rejected by the Engineer
or his authorized inspector, and the applicant shall promptly remove
such defective material from the site of the work.
C.
All materials shall conform to the following requirements:
(1)
Selected material for trench bottom. Selected material
for trench bottom shall consist of sand, or sand and gravel, well
graded from coarse to fine, not lumpy or frozen, and free from slag,
cinders, ashes, rubbish or other material which, in the opinion of
the Engineer, is objectionable or deleterious. The graduation of the
material shall be as follows:
|
Square Mesh Sieves
|
Percent Passing by Weight
| ||
|---|---|---|---|
|
3/4 inch
|
100%
| ||
|
1/4 inch
|
30% to 65%
| ||
|
No. 40
|
5% to 30%
| ||
|
No. 100
|
0% to 10%
|
(2)
Gravel fill. Gravel fill shall consist of sound, tough
and durable particles of crushed or uncrushed gravel, free from soft,
thin, elongated or laminated pieces and organic or other deleterious
substances. It shall conform to the following graduations:
|
Square Mesh Sieves
|
Percent Passing by Weight
| ||
|
3 1/2 inch
|
100
| ||
|
1/4 inch
|
30% to 65%
| ||
|
No. 40
|
5% to 30%
| ||
|
No. 100
|
0% to 10%
|
(3)
Sheeting, shoring and bracing.
(a)
Lumber used for sheeting, shoring and bracing
shall be sound, straight-grained and free from shakes, loose knots
and other defects liable to impair its strength or durability. Lumber
and sheeting may be reused if not ordered left in place and if in
good condition. Lumber shall be spruce, fir or a reasonable equal
thereto.
(b)
Steel used for sheeting, shoring and bracing
shall conform to the following requirements:
[2]
The steel shall conform to the following requirements
as to physical properties:
[a]
Minimum tensile strength shall be 70,000 pounds
per square inch.
[b]
A minimum tensile strength of 60,000 pounds
per square inch shall be permitted for piling used in the fabrication
of corners, tees, etc.
[c]
Bent test specimens shall stand being bent cold
through 180º around a pin, the diameter of which is equal to
twice the thickness of the specimen, without cracking on the outside
of the bent portion.
[d]
All steel-rolled beams and shapes shall conform
to the requirements of ASTM A36.
(4)
Concrete. Concrete for cradles, pipe encasement, cast-in-place
manholes, bases and special structures shall conform to ACI-318, three-thousand-pound-per-square-inch
stone concrete at 28 days, 5% to 7% entrained air, four-inch maximum
slump, unless otherwise noted.
(5)
Steel reinforcement. Steel reinforcement embedded
in concrete shall conform to ASTM A615, Grade 40 or 60, deformed bars,
unless otherwise noted.
(6)
Cement mortar.
(a)
Cement mortar shall be composed of portland
cement mixed in the proportion of one part by measure of cement to
two parts by measure of clean, sharp sand, free from all foreign materials
and organic matter. The cement and sand shall be carefully mixed dry,
the water afterwards added and the mortar made fresh for the work
at hand. No mortar shall be used which is found to be weak or imperfect,
either from standing too long after being mixed or from any other
cause.
(b)
The cement to be used shall be of the best American
portland, or a brand approved by the Engineer, and shall meet all
the requirements and tests of the ASTM Specification Designation C-150,
Type II. Where required, the mortar shall be of a nonshrink type containing
Embeco or an approved equal and shall be mixed in accordance with
the manufacturer's instructions. Sand shall conform to the requirements
of ASTM Specification Designation C-144.
(7)
Brick.
(a)
Brick must be of the best quality, whole, sound,
hard-burned, of perfect shape, presenting a regular, smooth surface
and shall have a crushing strength of at least 5,000 pounds per square
inch, and after being thoroughly dried and then immersed in water
for 24 hours, it shall not absorb more than 16% in weight of water.
(b)
The brick shall be culled when delivered on
the job, and all imperfect bricks shall be immediately removed from
the job.
(8)
Ductile iron pipe and cast-iron fittings.
(a)
Ductile iron pipe and cast-iron fittings shall
be cement-lined, rubber-gasket, push-on, mechanical- or restrained-joint
type conforming to the following specifications:
(b)
Pipe thickness class shall be in accordance
with ASA A21.50, Table 4, for Type B laying condition and three-hundred-pound-per-square-inch
working pressure at the various depths.
(9)
Copper tubing. Copper tubing shall be Type K soft
annealed copper water tube conforming to AWWA Specification 7S-CR
and shall be 3/4 inch for a single-family residence. Larger sizes
may be required for other uses.
(10)
Valves.
(a)
Gate valves.
[1]
Valves shall be iron-bodied, bronze-mounted,
one-hundred-fifty-pound-per-square-inch service, nonrising stem, double
disc, parallel seat valves with O-ring seals and mechanical joints
and shall conform to AWWA Specification C-500 gate valves for buried
service.
[2]
All valves shall open counterclockwise and shall
be provided with the standard two-inch-square wrench nut operator.
[3]
Each valve shall be provided with a two-piece
slide-type valve box with cover labeled "water." Curb boxes shall
be cast iron, painted with a tar base enamel.
(b)
Check valves. Check valves shall be line size,
mechanical-joint, iron-bodied, bronze-mounted, horizontal-swing type,
rated at 175 pounds per square inch. Check valves shall have regrind-renew
bronze seat and disc, which may be repaired without removing valve
body from the line, and bolted cover. Valves shall be Underwriters'
approved.
(c)
Tapping saddles and valves for wet taps.
[1]
Tapping saddles shall be of ductile iron with
an O-ring-type sealing gasket. The tapping saddles shall be clamped
to the pipe with straps 1/4 inch by 1 1/2 inches. Clamping straps,
bolts and nuts shall be of high-strength, corrosion-resistant alloy
steel. Tapping saddles shall have flanged ends suitable for the tapping
machine and valve and shall be ASA Class 125.
[2]
Tapping valves shall be as specified in the
following subsection.
(d)
Tapping sleeves and valves for wet taps.
[1]
Tapping sleeves shall be designed to strengthen
the pipe where it is attached so that, when the pipe section is removed,
the pipe shall not be weakened. Tapping sleeves shall be of the mechanical-joint
type with gaskets to suit the service with a flange connection to
the tapping valve.
[2]
Tapping valves shall be of the same construction
as gate valves hereinbefore specified. The inlet flange shall be machined
to mate with the tapping sleeve flange. Valve seat shall be large
enough to allow a full diameter cut to be made. Valve stem shall have
O-ring seals and a two-inch-square nut operator. Valve shall open
counterclockwise. Valve box shall be provided as hereinbefore specified.
[3]
Tapping sleeves and valves where and of the
sizes shown and specified herein shall be provided while the line
is in service and without loss of water. Rated working pressure shall
be two hundred pounds per square inch.
[4]
Tapping sleeve, valve, drilling equipment and
accessories shall be the product of one manufacturer. All required
labor and equipment to install the wet taps shall be provided by the
applicant.
(e)
Curb stops.
[1]
Curb stops shall be of the size(s) shown herein
and on the approved plan, full round way opening, teflon-coated plug,
O-ring sealed, of brass construction, solid tee head, one-hundred-seventy-five-pound-per-square-inch
service and conforming to AWWA Specification C 800.
[2]
Curb stops shall be provided with a two-piece
slide-type base curb box. The lid and pentagon plug shall be fastened
with iron to bronze thread. Stationary rods shall be provided. Dirt
cap for outlet side of stop and foot piece for curb boxes shall be
provided.
(f)
Corporation stops and goosenecks.
[1]
Corporation stops shall be all-bronze construction,
ground key stop, solid tee head, one-hundred-seventy-five-pound-per-square-inch
working pressure rating, and shall have threads conforming to AWWA
Specification C 800. Each corporation stop shall be provided with
a gasket and one-fourth-bend coupling suitable to connect flared copper
tubing.
[2]
Goosenecks shall be field fabricated of copper
tubing as shown on the plans.
[3]
Corporation stops shall be 3/4 inch for single-family
residences. Other services shall be as shown on the approved plans.
Where corporation stops larger than one inch are to be installed on
pipelines smaller than 14 inches in diameter, double-clamped tapped
service saddles of ductile iron with molded rubber gaskets shall be
provided.
(11)
Hydrants.
(a)
Fire hydrants shall be five-and-one-fourth-inch
compression type, and shall conform to AWWA Specification C-502.
(b)
Hydrants shall be traffic type with breakable
couplings and/or bolts at the ground line and shall open counterclockwise.
(c)
Hydrants shall have a six-inch mechanical-joint
side inlet foot piece, two two-and-one-half-inch hose nozzles and
one four-and-one-half-inch pumper nozzle. Nozzles shall all be national
standard hose threads.
(d)
Packing shall be O-ring type.
(e)
Hydrants shall be Mueller, five-and-one-fourth-inch
valve opening, Catalog No. A-24015.
(f)
Hydrants shall be painted solid red. Installed
hydrants shall be touched up to remove any marks or scraped paint
caused by installation or transit.
A.
Handling of material. All materials furnished shall
be delivered and distributed at the site by the applicant and shall
be properly protected from the weather and, where required, stored
under cover. Pipe and other materials shall be loaded and unloaded
by lifting with hoists or skidding so as to avoid shock or damage.
Under no circumstances shall such materials be dropped. Pipe handled
on skidways shall not be skidded or rolled against pipe already on
the ground.
B.
Sewage, surface and flood flows. The applicant shall
furnish all the necessary equipment, shall take all necessary precautions
and shall assume the entire cost of handling any water from leakage
or breaks of existing mains, sewage, seepage, storm, surface and flood
flows which may be encountered at any time during the construction
of the work. The manner of providing for these flows shall meet with
the approval of the Engineer.
C.
Provision for public safety.
(1)
To protect persons from injury and to avoid property
damage, adequate barricades, construction signs, torches, warning
lights and guards as required shall be placed and maintained during
the progress of the construction work until the site is safe for public
use. Whenever necessary, watchmen shall be provided to prevent accidents.
Rules and regulations of the local authorities regarding safety provisions
shall be observed.
(2)
Excavations shall be conducted to cause the least
interruption to traffic. If so directed by the Engineer, the applicant
shall provide suitable bridges at street and driveway crossings where
traffic must cross open trenches. Hydrants under pressure, valve pit
covers, valve boxes, curb stop boxes, fire or police call boxes or
other utility controls shall be unobstructed and accessible during
the construction period.
D.
Alignment and grade. All construction shall conform
to the required lines and grades. No deviation shall be made from
the required line or grade except with the written consent of the
Engineer. Wherever obstructions not shown on the approved plans are
encountered during the progress of the work and interfere to such
an extent that an alteration of the line and/or grade is required,
the Engineer shall have the authority to order a deviation from the
line and grade. If the change in line and/or grade results in work
beyond that required by the approved plans, the cost for such additional
work shall be at the expense of the applicant. Deviation from the
lines and grades shown on the approved plans or established by the
Engineer shall be corrected at the expense of the applicant.
E.
Trenches and other excavations.
(1)
The trenches and other excavations shall be of sufficient
width and depth at all points to allow all pipes to be laid, joints
to be formed and structures and appurtenant construction to be built
in the most thorough and workmanlike manner, and to allow for sheeting
and shoring, pumping and draining, and for removing and replacing
any materials unsuitable for foundations. The trenches and excavations
shall be at least 18 inches wider than the outside dimensions of the
structures they are to contain. The maximum clear width of trench
one foot above the top of the pipe shall be as shown on the approved
plans. Greater width of trench shall be permitted only upon approval
of the Engineer.
(2)
The depth of trench shall be such that the pipe, when
laid on the prepared bed, shall have at least four feet six inches
of cover from top of pipe to finished surface grade unless shown otherwise
on the approved plans.
(3)
The excavation for trench shall be carried out at least four inches and not more than six inches below the specified bottom of the pipe. Before the pipe is laid, the trench shall be backfilled to subgrade by backfilling with an approved material, meeting the requirements of § 233-13C(1), Selected material for trench bottom, in four-inch to six-inch compacted layers. The layers shall be thoroughly tamped as directed by the Engineer so as to provide a uniform and continuous bearing and support for the pipe. If the bottom of any excavation has been removed below the six-inch limit without authorization by the Engineer, it shall be filled with an approved material and thoroughly compacted as directed by the Engineer, at the applicant's expense. The subgrade elevation for pipe shall be 15% of the outside diameter of the pipe above the pipe invert elevation, unless otherwise shown on the approved plans, to ensure that the bottom quadrant of the pipe barrel is embedded in the backfilled material. Hand tools shall be used to prepare the subgrade in the areas of the pipe bell.
F.
Excavation in poor soil and refilling to subgrade. Where the bottom of the excavation is found to be unstable or to include ashes, cinders, all types of refuse, vegetable or other organic material or large pieces or fragments of inorganic material which, in the judgment of the Engineer, should be removed, the applicant shall excavate and remove such unsuitable material to the width and depth ordered by the Engineer. The subgrade shall then be made by backfilling with an approved material, meeting the requirements § 233-13C(1), Selected material for trench bottom, in six-inch compacted layers. The layers shall be thoroughly tamped as directed by the Engineer so as to provide a uniform and continuous bearing and support for the pipe and/or structure. The finished subgrade shall be prepared accurately by means of hand tools.
G.
Special foundation in poor soil. Where the bottom
of the excavation at subgrade is found to consist of material which
is unstable to such a degree that, in the opinion of the Engineer,
it cannot be removed and replaced with an approved material thoroughly
compacted in place to support the pipe or structure properly, the
applicant shall construct a foundation for the pipe or structure consisting
of piling, timbers or other materials, in accordance with plans submitted
by the applicant and approved by the Engineer.
H.
Rock excavation.
(1)
The word "rock," wherever used as the name of an excavated
material, shall mean solid ledge rock, masonry, concrete and boulders
which, in the opinion of the Engineer, require for removal drilling
and blasting, wedging, sledging or barring or breaking up with a power-operated
hand tool.
(2)
Rock shall be removed to provide a clearance of at
least six inches below and nine inches on each side of all pipe, fitting,
manholes and special structures.
(3)
The specified minimum clearances are the minimum clear
distances which will be permitted between any part of the pipe and
appurtenances being laid or structures being built and any part, projection
or point of such rock, boulder or stone.
(4)
Where excavation is made in rock or boulders and the clearance specified above is provided, the subgrade shall be made by backfilling with an approved material meeting the requirements of § 233-13C(1), Selected material for trench bottom, in six-inch compacted layers at the applicant's expense. The layers shall be thoroughly tamped as directed by the Engineer so as to provide a uniform and continuous bearing and support for the pipe and/or structures. The finished subgrade shall be prepared accurately by means of hand tools.
(5)
The hours of blasting shall be fixed by the Engineer.
Any damage caused by blasting shall be repaired by the applicant at
his expense. The applicant's procedures and methods of blasting shall
conform to all laws and municipal ordinances pertaining to blasting
for this work.
(6)
The Code of the Association of General Contractors,
the American Manual of Accident Prevention in Construction, must be
followed. The applicant, in addition to observing all laws and ordinances
relating to the storage and handling of the explosives, shall also
conform to any further regulations which the Engineer may deem necessary
in this respect.
(7)
When rock is removed by blasting, it shall be removed
at least 30 feet in advance of the laying of pipe or construction
of structures. When an existing pipe, conduit or structure intersects
or comes within five feet of the line of the trench, any rock necessary
to be excavated for a distance of five feet in the clear, on each
side of the existing pipe, conduit or structure shall, in all cases,
be removed with the utmost care to avoid disturbing the existing pipe,
conduit or structure. If the applicant elects to blast, only the lightest
of possible explosive charges shall be used. The applicant shall,
in all cases, be held responsible for and shall make good any damage
caused by blasting, accidental explosions or other rock removal procedures
used.
(8)
Material from rock excavation may be used as backfill
only in conformance with the following requirements:
(a)
The backfill shall not contain stones or rock
more than nine inches in their largest dimension, and backfill shall
not contain more than 33% rock.
(b)
All rock shall be uniformly distributed throughout
the backfill. Nesting of rocks will not be permitted.
(c)
Material from rock excavation which is not suitable
for backfill, as determined by the Engineer, shall be removed from
the site. Suitable backfill material acceptable to the Engineer shall
be substituted for the unsuitable rock material. Removal of unsuitable
rock excavation material and furnishing and placing of suitable backfill
shall be accomplished by the applicant at his expense.
I.
Excavation methods.
(1)
The use of trench-digging machinery will be permitted
except where its operation will cause damage to trees, buildings or
existing structures above or below the ground. At such locations,
hand methods shall be employed to avoid such damage. Trenches shall
be opened at such times and to such extent only as may be permitted
by the Engineer.
(2)
Where, in the opinion of the Engineer, field conditions
do not satisfactorily permit the use of large excavation equipment,
the Engineer shall have the right to limit the maximum size or equipment
to be used by the applicant.
(3)
The applicant shall furnish, put in place and maintain
such sheeting, shoring and bracing as may be required by all governing
state laws and municipal ordinances and as may be necessary to protect
life, property or the work. The Engineer may order additional, longer
or stronger sheeting, shoring and bracing or different methods where
in his opinion the sheeting, shoring and bracing is not satisfactory.
Any omission on the part of the Engineer to so order shall not relieve
the applicant of his responsibility to provide adequate sheeting,
shoring and bracing. When close sheeting is required, it shall be
so driven as to prevent adjacent soil from entering the trench either
below or through such sheeting. Bracing, shoring and sheeting shall
be securely fastened in place so they cannot loosen up and fall or
move from position. All expenses for this work shall be paid for by
the applicant.
(4)
Where sheeting and bracing are used, the trench width
shall not be less than 18 inches or one foot greater than the outside
diameter of the pipe, whichever is greater.
(5)
The sheeting, shoring, bracing, etc., or parts thereof,
shall be left in place after the completion of the work in locations
where ordered in writing by the Engineer. The Engineer may require
that at intervals the sheeting shall be left in place and that other
sheeting be removed. All sheeting which is left in place, whether
ordered by the Engineer or left for the convenience of or to subserve
the interests of the applicant, shall be cut off at least three feet
below the established finished grade or the existing surface of the
ground, whichever is lower.
(6)
Failure to order sheeting left in place by the Engineer
shall not relieve the applicant from any responsibility for any loss
or danger whatsoever from his lack of leaving sheeting in place on
his own initiative.
(7)
Sheeting, shoring and bracing, except that which has
been permitted or ordered to be left in place, may be removed after
backfilling has been brought up to such an elevation as to permit
its safe removal. As backfill is placed and if sheeting is to be withdrawn,
the voids left by the withdrawn sheeting, shoring and bracing shall
be filled and compacted.
(8)
The applicant shall at all times provide ample means
and equipment with which to promptly remove and dispose of all water
and drainage entering the excavation or other parts of the work and
to keep such excavation dry until the pipeline and/or structure to
be built therein is completed. In no case will the laying of pipe
or building of structures be permitted with water in the excavation.
(9)
Dewatering methods and equipment shall be adequate
to properly dewater the work and shall be subject to the approval
of the Engineer, and all water removed from the work shall be disposed
of in an approved manner without damage to adjacent property or other
work.
(10)
No tunneling will be permitted in place of open
trench excavation unless specifically authorized by the Engineer.
(11)
All surface materials which, in the opinion
of the Engineer, are suitable for reuse in restoring the surface shall
be kept separate from the general excavation materials, directed by
the Engineer. All excavated material shall be piled in a manner that
will not endanger the work or limit free access to any part of the
work. Gutters shall be kept clean, or other satisfactory provisions
shall be made for street and other drainage. Precautions shall be
taken to maintain access to all valve boxes, manholes and fire hydrants.
Excess material shall be disposed of by the applicant at his expense.
J.
Pipe laying.
(1)
Proper implements, tools and facilities satisfactory
to the Engineer shall be provided and used by the applicant for the
safe and convenient prosecution of the work. All pipe shall be carefully
lowered into the trench piece by piece by means of a derrick, ropes
or other suitable tools or equipment, in such a manner as to prevent
damage to the materials and protective coatings or linings. Under
no circumstances shall materials be dropped or dumped into the trench.
Pipe and fittings shall be carefully cleaned with a dry cloth to remove
all sand, mud, clay, oil or ice so as to be left clean and dry. Every
precaution shall be taken to prevent foreign material from entering
the pipe while it is being placed in the line. During the laying operations,
no debris, tools, clothing or other materials shall be placed in the
pipe. At other times, the pipe shall be closed by a watertight plug
or other means approved by the Engineer. This provision shall apply
during the noon hour as well as overnight. If water is in the trench,
the seal shall remain in place until the trench is pumped completely
dry. No pipe shall be laid in water or when, in the opinion of the
Engineer, trench conditions are unsuitable.
(2)
All pipe shall be laid uphill with the bell, socket
or coupling ends facing the direction of laying. Preparation of the
trench bottom and placement of the pipe shall be carefully made so
that, when in final position, the pipe is true to line and grade,
carefully centered, with a uniform invert.
(3)
Concrete reaction blocking shall be poured at all
fittings, dead ends, trees, crosses, etc. The blocking shall bear
uniformly on undisturbed soil in the direction of thrust. The sizes
of reaction blocking shall be as shown on the approved plans or as
designated by the Engineer.
K.
Bedding of pipe. The pipe shall be bedded as shown
on the approved plans or as directed by the Engineer, in accordance
with the following requirements:
(1)
Bedding on selected material. Unless otherwise shown
on the approved plans or permitted by the Engineer, the bottom of
the trench, after the selected material for the trench bottom has
been placed and compacted, shall be shaped to receive the bottom quadrant
of the pipe barrel. In addition, bell holes shall be excavated so
that after placement only the barrel of the pipe received uniform
bearing pressure from the trench bottom.
(2)
Concrete encasement and concrete cradles. Pipes encased
in concrete or supported by a concrete cradle shall be temporarily
supported, by means of precast or poured-in-place concrete blocks
or bricks, on the prepared bottom of the trench or excavation. Temporary
supports shall have minimum dimensions and shall support the pipe
at not more than two locations, one adjacent to each end of each length
of pipe. After jointing of the pipe has been completed, concrete shall
be placed to provide support for at least the bottom quadrant of the
pipe. For pipe encasement, sufficient concrete shall be used so that
the encasement is at least four inches thick at all points. The concrete
shall be of such consistency as to permit its flow, without excessive
rodding, to all required points around the pipe surface. Unless otherwise
shown on the approved plans or required or permitted by the Engineer,
the width of cradle shall be such as to fill the trench width completely.
In no case shall the width of cradle be less than 12 inches greater
than the diameter of the pipe at the outside of the bell or socket.
The placing of the concrete shall be done in such a manner that the
grade and alignment of the pipe will not be disturbed. Special provisions
shall be taken to prevent flotation of the pipe during placement of
the concrete.
L.
Jointing.
(1)
In general, the method and materials to be used in
jointing the pipe shall follow the recommendations of the pipe manufacturer.
Prior to the start of the work, pipe layers shall be instructed by
a representative of the pipe manufacturer in the proper method to
be used, and the applicant will see that these methods are followed.
(2)
Preparatory to making pipe joints, all surfaces of
the portions of the pipe to be jointed or of the factory-made jointing
material shall be clean and dry. No jointing of the pipes will be
permitted in a wet trench or other excavation. Gaskets, lubricants,
primers, adhesives, etc., shall be installed and used as recommended
by the pipe or joint manufacturer's specifications. Gaskets and other
jointing materials shall be protected from damage at all times. Gaskets
and jointing materials shall be inspected before installation of the
pipe, and any loose or improperly affixed gaskets and jointing materials
shall be removed and replaced to the satisfaction of the Engineer.
The pipe shall be aligned with the previously installed pipe, and
the joint put together. Immediately after the pipes are put together,
the position of each gasket and joint shall be inspected to be sure
that the joint has been properly made and is tight. If, while making
the joint, the gasket or jointing material becomes loose or misplaced,
the pipe shall be removed and the joint remade to the satisfaction
of the Engineer.
(3)
The joints shall be made in a workmanlike manner so
as to obtain the degree of watertightness required.
(4)
If a pipe joint is made by pushing against the opposite
end of the entering pipe, using a metal bar or other means, the end
of the pipe shall be protected with a block of wood to distribute
the stresses and prevent damage to the pipe.
M.
Setting valves.
(1)
Valves shall be located and set where shown on the
approved plans. Valve clusters at intersections shall be set symmetrically
and as close together as is practical.
(2)
Valves and boxes shall each be set and maintained
in a vertical position. The position of the nut inside the box shall
be such that free and complete access to the nut can be achieved with
the wrench.
(3)
The finished elevation of the top of the valve box
shall be such that the top is level with the surrounding pavement.
In the case of incompleted streets or roads, the upper box section
shall be set as close as possible to the theoretical grade of the
finished street surface and the valve or valve cluster protected by
barricade, barrels or other markers satisfactory to the Engineer.
N.
Hydrants.
(1)
Hydrants shall be located and set approximately where
shown on the approved plans or as ordered and directed by the Engineer.
Hydrants shall be connected to the main by the necessary length of
six-inch ductile iron pipe. All joints shall be mechanical joint with
retainer glands installed in accordance with manufacturer's instructions.
Hydrant valves shall be located as shown on the typical section on
the approved plans or two feet six inches from the hydrant center
line.
(2)
The hydrant shall be set on a solid base, and concrete
reaction blocking shall be poured around the base bearing on virgin
soil, taking care to keep the drain hole unobstructed. The remainder
of the base shall be packed with coarse gravel or crushed stone to
permit drainage of the hydrant barrel.
(3)
The hydrant shall be so placed that the distance from
the nut of the pumper connection to the finished ground elevation
shall be 18 inches to 21 inches. Extension sections shall be used
only where unknown or unusual field conditions are encountered. The
applicant shall provide hydrants with various depths of bury so the
hydrants may be installed to the proper elevation without extensions.
O.
Service connections.
(1)
Services shall be installed in conformance with the
requirements heretofore specified for excavation, pipe laying, bedding
of pipe, jointing, backfilling and testing and/or in conformance with
local municipal plumbing codes.
(2)
Minimum cover for service pipe shall be four feet
six inches unless shown otherwise on the approved plans.
(3)
The service pipe shall terminate with a curb stop
and box which shall be set so that the top of box will be four inches
to six inches above finished grade and adjacent to the user's property
line. The curb box shall be adjustable to the flush position.
(4)
Before backfilling, the corporation stop shall be
turned to the "on" position.
(5)
Service pipe and appurtenances shall be included in
and subject to the hereinafter-specified test for pressure, leakage
and contamination.
P.
Backfilling.
(1)
Upon completion of the laying of pipe, backfilling
will be started immediately and shall be continued so that at the
end of the working day all pipe is completely backfilled. Selected
material for trench bottom shall be placed continuously by hand in
layers not exceeding six inches in thickness after compaction and
thoroughly consolidated by tamping simultaneously on both sides of
the pipe to a minimum height of 12 inches above the top of the pipe
and to such additional height as may be shown on the approved plans.
(2)
The remainder of the trench shall be backfilled to
the full height of the trench or to the elevations shown on the approved
plans as follows:
(a)
Where trenches and other excavation are located
in roadways, sidewalks or driveways or under curbing or other utilities,
the backfill shall consist of run-of-trench materials placed in layers
not to exceed 12 inches and compacted by mechanical tampers. The top
12 inches of the backfill shall be gravel fill meeting the requirements
hereinbefore specified. If, in the opinion of the Engineer, the trench
materials are not usable as compactible backfill, on his order, it
shall be disposed of and the backfill made in part or entirely with
gravel fill compacted as described above.
(b)
At all other locations, unless specifically
shown or required otherwise by the approved plans, the backfill shall
be made as above, except that the top 12 inches of backfill shall
be similar to that excavated unless ordered otherwise by the Engineer.
(c)
The surfaces of all backfilled areas shall be
maintained through final consolidation so that the backfilled areas
remain consistently on grade with the surrounding undisturbed surfaces.
(3)
Where shown on the approved plans, the applicant shall
place fill to form a protective embankment over the pipe. This fill
shall conform to the dimensions and elevations shown on the approved
plans.
(4)
Any deficiency in the quantity of material for backfilling
the trenches or construction embankments over the pipe or filling
any depressions caused by settlement shall be supplied by the applicant
at his own expense. Backfill material in rock excavations shall be
included in this category. The applicant shall not permit the excavated
trench or any portion thereof to be used for disposal of rubbish,
and all backfill shall be free from cinders, ashes, organic material
or other material which, in the opinion of the Engineer, is unsuitable.
(5)
Backfilling around appurtenances and special structures
shall be made as specified above for pipe. No backfill shall be placed
against masonry structures until, in the opinion of the Engineer,
the concrete or mortar has had sufficient time to harden and cure.
Backfill shall be placed evenly to the same height on all sides of
the structure in order to avoid unbalanced lateral loading on the
structure.
(6)
Backfilling shall not be done in freezing weather
except by permission of the Engineer, and it shall not be made with
frozen material. No backfill shall be made where the material already
in the trench is frozen. Compaction of all backfill and fills shall
be completed to the full satisfaction of the Engineer.
(7)
The specifications for backfill as detailed above
are considered to be minimum. The applicant shall assume full responsibility
for the preservation of the work and the structural integrity of the
pipe and appurtenances. He shall also assume full responsibility for
trench settlement during the construction period and the guaranty
period. In the event of trench settlement, he shall do the required
backfill, grading and/or replacement of paving to restore the prescribed
surface elevations.
Q.
Testing.
(1)
During the progress of construction and/or upon completion
of the same, pressure, leakage and disinfection tests shall be made
on the pipe and appurtenances.
(2)
Pressure and leakage tests shall be performed on sections
between valves of not more than 1,500 feet in length. All equipment
and labor for the hydrostatic test will be provided by the applicant.
Tests will be made at average pressure of 150 pounds per square inch
for a duration of two hours unless otherwise ordered by the Engineer.
Initial pressure shall be 175 pounds per square inch.
(3) 
Allowable leakage shall be determined by the formula:
|
Where
L = Allowable leakage in gallons
per hour.
N = Number of joints in the length
of pipe tested.
D = Nominal diameter of pipe in
inches.
P = Average test pressure during
leakage test in pounds-per-square-inch gauge.
|
(4)
The section to be tested shall be slowly filled with
water and the specified pressure applied by pump. Air shall be expelled
from the pipe through user services or hydrants or through taps made
as may be necessary by the applicant.
(5)
The section under initial specified pressure shall
be allowed to sit for a period of two hours or as ordered by the Engineer.
At no time during the test period shall the pressure be allowed to
diminish by more than 50 pounds per square inch from the initial pressure.
In the event that the pressure is reduced by more than 50 pounds per
square inch, the line shall immediately be repumped to the initial
pressure. At the end of the period or periods, the pressure shall
be restored to the initial pressure, and the amount of water necessary
to do so shall be measured to determine the leakage each time the
line is repumped. The total water used during the two-hour test shall
determine the leakage.
(6)
Pressure tests shall be made after the backfill is
completed but not sooner than five days after the pouring of concrete
thrust blocking.
(7)
All parts of the work, including hydrants and user
services, shall be included in the pressure, leakage and disinfection
tests.
(8)
Before being placed in service and before certification
of completion by the Engineer, the entire work shall be disinfected
in accordance with the methods prescribed in the AWWA Standard C-601
and/or as follows:
(a)
A disinfectant mixture which will provide 50
parts per million minimum available chlorine shall be introduced into
the system and retained for at least 12 hours. The system shall be
then drained and flushed. Bacteriological examination of water samples,
collected after disinfection, shall be made by the Health Department
at the applicant's expense. Samples shall be taken at various points
on the system as determined by the Health Department. If examination
determines that the water is unfit for consumption, the disinfection
process shall be repeated until potable samples are achieved.
(b)
It is the responsibility of the applicant to
provide a complete system free from contamination.
(9)
The applicant shall furnish at his own expense an
adequate supply of all water required during the construction and
testing of the system, paying for the expenses and charges for the
same, and installing and paying for a meter if it is required. When
work is completed, temporary water connections and fixtures shall
be removed by the applicant and all unused taps shall be plugged.
R.
Cleaning up.
(1)
As the work progresses, the applicant shall clean
up the streets and rights-of-way, and the backfill shall be rounded
within the limits of the excavation. Soft trenches shall be marked
and protected with signs and adequate lights, and subsequent settlement
shall be promptly refilled.
(2)
All backfilled trenches and surrounding areas of work
in progress shall be maintained as clean and dust-free as practical,
as determined by the Engineer. Water, calcium chloride, mechanical
sweepers or other means as may be required shall be employed by the
applicant to satisfy the Engineer.
(3)
If within three days, upon receiving a written notice from the Town or the Engineer, the applicant has not met the conditions of Subsection R(2) above, the Town may clean, wet down, sweep, etc., the areas involved and backcharge the applicant.
(4)
Upon the completion of the work, all dirt and rubbish
shall be hauled to a dump provided by the applicant and the construction
site left clean to the satisfaction of the Engineer. All surplus materials
furnished by the applicant and all tools and temporary structures
shall be removed from the site by the applicant.
S.
Restoration and maintenance of pavement, damaged surfaces
and property.
(1)
The applicant shall restore or replace all removed
or damaged paving, curbing, sidewalks, gutters, shrubbery, grass,
fences, sod or other disturbed surfaces or structures in a condition
equal to that before the work began and to the satisfaction of the
Engineer and shall furnish all labor and material incidental thereto.
In restoring improved surfaces, new pavement shall be laid, except
that granite paving blocks, sound brick or sound concrete paving blocks
may be reused.
(2)
Pavement replacement shall be made in accordance with
the requirements of other sections of the approved plans and in accordance
with the specifications and directions of state, county or Town authorities
having jurisdiction over the pavement.
(3)
After the certification by the Engineer of the completion
of the work, the applicant shall, unless it is otherwise specified
in the approved plans, maintain the surface of unpaved trenches and
adjacent curbs and gutters, sidewalks, shrubbery, fences, sod and
other disturbed surfaces for a period of three months thereafter.
The applicant shall maintain, for one year after certification of
completion, areas that have been repaved and curbs, gutters and sidewalks
that have been replaced, unless otherwise specified in the approved
plans or required by state, county or Town officials having jurisdiction.
All material and labor required for the maintenance of the trench
surfaces and structures shall be supplied by the applicant, and the
maintenance shall be done in a manner satisfactory to the Engineer.
A.
All buildings shall be constructed in accordance with
the New York State Uniform Fire Prevention and Building Construction
Code and Energy Code.
B.
All supply systems shall be constructed and tested
in accordance with plans and specifications approved by the Dutchess
County Department of Health.
D.
Wells. The Engineer shall be notified prior to any
well pump tests. Whenever two or more wells are located in a common
well field or within 500 feet of one another, all wells, including
any existing wells in the well field, shall be tested simultaneously.
All well pumping tests shall be continuous over a forty-eight-hour
period unless required otherwise by the Engineer. The rated capacity
of the new well or wells shall be the minimum flow recorded during
the forty-eight-hour test period. The drawdown and the stabilized
flow shall be recorded hourly.
E.
The applicant shall submit to the Town a completed
works approval from the New York State Department of Health prior
to acceptance of the system by the Town.
As mandated by the New York State Health Department,
the separation between sewer and water lines shall conform to one
of the following:
A.
Each line shall be laid in a separate ditch.
B.
Each line shall have a horizontal separation of 10
feet if laid in the same ditch.
C.
The lines shall be benched 18 inches, with the sewer
being the lower of the two, and a minimum horizontal separation of
two feet.[1]
[1]
Editor's Note: The following articles of original Ch. 98, which immediately followed this subsection, were repealed 12-11-1985 by L.L. No. 4-1985: Art. III, Noxon Knolls Water District, adopted 1-23-1980 by L.L. No. 2-1980, as amended; and Art. IV, Titusville Water District, adopted 5-12-1980 by L.L. No. 6-1980, as amended.
