[Ord. 752, 2/7/1994, § 1]
1.
This Part sets forth uniform requirements for water system construction
in Elizabethtown Borough.
2.
This Part defines certain terms and provides for the regulations
of the construction or repair of water systems and appurtenances by
others, by contract or agreement or any other means with the Borough.
Except as otherwise provided herein, the Borough Manager shall administer,
implement and enforce the provisions of this Part.
[Ord. 752, 2/7/1994, § II]
The short title of this Part shall be the "Borough of Elizabethtown
Water System Installation Specification Ordinance."
[Ord. 752, 2/7/1994, § I; as amended by Ord. 829,
11/15/2001]
1.
Scope.
A.
These specifications cover the design and construction of water main
extensions. They also cover, in a general manner, the design and construction
of new separate water supply systems including the installation of
portable water piping, valves, specials, etc.
B.
APPLICANT
BOROUGH
CONTRACTOR
OWNER
The persons or agencies referred to in these specifications are defined
as follows:
Any person or company who applies for water service.
The Borough of Elizabethtown.
The builder of the water main extension or water supply facilities,
whether under contract with the applicant or the Borough.
The legal owner of real estate or other property.
C.
When an applicant for water service wishes to design and construct
a separate water supply system, the applicant shall consult with the
Borough prior to design, to obtain approval and to establish design
criteria.
D.
All water service projects shall be done in accordance with Borough
ordinances, rules, regulations and schedules of charges for water
service and these general specifications.
E.
An applicant for an extension of water service shall submit four
sets of plans providing the following information:
(1)
Water Demands.
(a)
Number and type of housing units, with anticipated construction
schedule.
(b)
Estimated total population served.
(c)
Average daily water demand.
(d)
Maximum daily water demand.
(e)
Maximum hourly water demand.
(f)
Fire protection demand and duration (hours).
(g)
Construction elevations (U.S.G.S. datum).
(2)
Planimetric mapping showing existing and proposed streets, property
and lot lines, and building locations at a scale of one inch equaling
50 feet.
(3)
Topographic mapping showing vertical relationship of new system
to the existing. (NOTE: Planimetric and topographic may be combined
or overlaid on each other.)
(4)
Existing and proposed utilities including location and sizes
of mains, valves, hydrants, blow-offs and other facilities.
(5)
Legend of symbols, scale and date.
(6)
A note which states: "All water main construction shall conform
to the Elizabethtown Borough general specifications for water system
construction, which shall take precedence over other notes on the
drawings."
2.
Design Criteria.
A.
General. The following design criteria shall be used unless exceptions
are approved in writing by the Borough. Where special design criteria
are required, the applicant should consult with the Borough prior
to preparation and submission of plans.
B.
C.
Water Pressures.
D.
Size of Mains.
(1)
Main sizes shall conform to Borough ordinances, rules and regulations.
Required minimum sizes are eight inch diameter Class 52 DIP with cement
lining in residential areas, and twelve-inch diameter Class 52 in
employment center areas. Adequacy of main sizes is based on a total
flow requirement of fire demand plus maximum daily demand plus special
requirements. A maximum C value of 130 is permitted for new cement-lined
ductile iron pipe. The Borough retains the right to reduce the size
of the main when a reduction is warranted according to the Borough
Engineer.
(2)
Fire hydrant branches shall be not less than six-inch diameter
and no longer than necessary. The maximum permissible length is 50
feet unless a longer length is approved by the Borough. The Borough
reserves the right to increase or reduce the size main proposed when
such a change is warranted as determined by the Borough Engineer.
E.
Location of Mains.
(1)
General.
(a)
Mains shall normally be located within the right-of-way lines
of public streets. If it is necessary to locate a main on private
property, the applicant shall provide a water main easement in the
name of the Borough. The easement shall consist of a twenty-foot wide
permanent easement, normally centered on the pipeline, and a additional
twenty-foot wide temporary construction easement.
(b)
Distribution main networks shall be looped and dead-end mains
shall be avoided. When dead-end mains cannot be avoided, hydrants
shall be provided at the main ends.
(c)
Distribution mains shall be located a minimum of 20 feet from
the nearest structure, except as approved by the Borough.
(d)
A safe and adequate separation shall be maintained between water
mains and all other underground utilities.
(2)
Water Mains Near Sewers.
(a)
Water main installation near sewers shall conform to the Pennsylvania
Department of Environmental Protection Water Supply Manual. Water
mains shall be laid at least 10 feet, horizontally, from any existing
or proposed drain line. If local conditions prevent a horizontal separation
of 10 feet, the water main shall be laid in a separate trench, or
on an undisturbed earth shelf located on one side of the sewer, such
that the bottom of the water main is at least 18 inches above the
top of the sewer. When it is impossible to obtain the horizontal and
vertical separation stipulation above, both the water main and the
sewer should be constructed of pressure pipe utilizing mechanical
joints employing a rubber gasket to obtain a seal. Both the water
main and the sewer shall be pressure-tested after backfilling to assure
watertightness.
(b)
When a water main crosses a sewer or storm drain, the bottom
of the water main shall preferably be installed 18 inches above the
top of the drain, and this vertical separation shall extend at least
10 feet horizontally on each side of the sewer. If a water main must
cross under a sewer or drain, a full length of water main pipe shall
be centered under the sewer, the vertical separation shall be a minimum
of 18 inches, and the sewer pipe shall be encased in concrete for
a minimum of 10 feet on each side of the crossing.
(c)
Water mains shall always cross above sewer force mains with
a minimum vertical separation of 18 inches, and the sewer force main
shall be encased in concrete for at least 10 feet on each side of
the crossing. See concrete encasement detail.
(d)
No water pipe shall pass through, or come into contact with,
any part of a sewer manhole.
F.
Cross Connections. No water source of any type, other than the Borough
water supply, shall be connected to customer piping served from the
Borough water system. All potential cross connections shall be eliminated
and the Borough may require any customer to install a backflow prevention
device in accordance with § 612(28) on the Borough water
service line.
G.
Minimum Cover Over Pipes. The minimum depth of backfill over pipes
shall be four feet, or 48 inches. When the minimum depth of cover
cannot be provided, insulated construction approved by the Borough
shall be employed.
H.
Location of Valves.
(1)
Generally, a minimum of three valves shall be used at crosses
and two valves at tees. The Borough reserves the right, however, to
require the installation of four valves at each cross and three valves
at each tee. Valves shall be placed at least every 700 feet on arterial
mains and minor distributors, or at other selected points throughout
the distribution system as determined by the Borough.
(2)
All water mains shall extend at least 40 feet beyond each valve
located on a dead-end main, unless otherwise approved by the Borough.
(3)
A valve shall be installed on each hydrant branch pipe between
the main and the hydrant and near the end of any main which may be
extended.
I.
Air-Release and Vacuum Valves. May be required in certain situations
as determined by the Borough.
J.
Blow-offs, Not permitted.
K.
Fire Hydrant. Fire hydrants are required and shall be installed at
the applicant's expense. Hydrant spacing and locations shall be as
required as follows:
(1)
In low density single family residential areas, all parts of
an existing or proposed building shall be within 300 feet of a hydrant.
(2)
In high density residential or common commercial areas, each
entire unit shall be within 300 feet of one hydrant and 500 feet of
a second hydrant.
(3)
Generally, a hydrant should be placed at each street intersection,
and intermediate hydrants should be installed if the distance between
intersections is excessive.
(4)
In checking distances between hydrants and buildings, measurements
should be made along public streets, except where private entrances
or parking areas are available for access.
(5)
On all high points on the distribution main.
L.
Cathodic Protection. Water mains installed near utilities having
cathodic protection shall themselves be protected. The method of protection,
which may include insulating couplings, polyethylene encasement, electrical
connectors, test stations, and other facilities, shall be subject
to Borough approval. General specifications for cathodic protection
are presented in § 614(15).
M.
Customer Metering. Each customer shall be metered.
N.
Corporations. Corporations will be installed at the low and high
points of the new water main to facilitate the hydrostatic and pressure
tests.
3.
Borough's Right of Inspection. The Borough shall have the right to
inspect any water system construction being carried out by the applicant.
Should the inspected work prove unsatisfactory, the cost of removing
and replacing, renewing and making good the unsatisfactory work shall
be borne by the applicant. No water service facility shall be placed
in service until it has been successfully tested in the presence of
an authorized Borough representative in accordance with § 615.
4.
Working Conditions. No night, Saturday or Sunday work subject to
Borough inspection will be permitted except in cases of emergency
and then only with written Borough consent. No work shall be done
when, in the opinion of the Borough, the weather is unsuitable.
5.
Contractor.
A.
The word "contractor" as used in these specifications means any person
constructing water main in accordance with these specifications and
the rules and regulations of the Borough.
B.
Where the contractor is acting as an agent of the applicant, requirements
of the contractor under these specifications shall also apply to the
applicant and the Borough shall have recourse to either party. These
specifications shall not, however, be construed to dictate the legal
relationship between an applicant and his or her contractor.
6.
Liability. The contractor shall be responsible for any and all damage,
loss, or injury to persons or property that may arise, or be incurred,
in or during the conduct or progress of the work.
7.
Exploratory Test Pits. Test pits shall be dug in advance of trench
excavation when necessary to determine the location and depth of existing
utilities, rock, water levels or other conditions that might affect
construction.
8.
Standard Specifications. Standard specifications of societies, associations,
institutes, etc., are referred to in these specifications unless otherwise
noted.
9.
Work Area Traffic Control and Maintenance.
A.
Traffic in work areas shall be controlled to protect the public and
workers, while minimizing the inconvenience to the public. Traffic
control devices shall conform to the Pennsylvania Department of Transportation
(Penn-DOT) Regulations Governing the Design, Location and Operation
of all Traffic Designs, Signals and Markings on or along Highways
within the Commonwealth of Pennsylvania; the current revision of Bulletin
Nos. 15, 43 and 730; and the PennDOT Publication 112, Handbook for
Work Area Traffic Control; except where specified herein.
B.
When vehicles must be stopped for short periods, work shall be performed
during other than peak traffic periods. Access to residential and
business establishments shall be maintained, except when work is actually
being performed in the area. Trenches across driveways, side streets,
alleys, and entrances shall be maintained after backfilling.
10.
Compliance with Provisions of Act No. 287. Pennsylvania General Assembly
Act. No. 287 and Act No. 172 set forth requirements designed to protect
underground utility lines from damage during excavation. Generally
the acts require the contractor to ascertain the location and type
of utility lines at the work site and to request detailed information
from each user (utility owner or operator) not less than three working
days before beginning work. The contractor must provide operators
with the information and must inform any user of any damage made or
discovered during construction. Utility notification number required
for design and construction.
11.
Special Requirements.
A.
Construction of water mains and appurtenances shall conform to the
requirements of the Occupational Safety and Health Act (OSHA).
B.
All equipment used on roadways shall be equipped with rubber tires
or treads. If other than rubber tires or treads are used, the pavement
shall be protected by heavy rubber belting.
C.
The contractor shall maintain existing water mains in service. If
an existing water main is damaged or broken, the contractor shall
expeditiously restore service at his or her expense.
D.
The contractor shall not remove backfill material from the lines
of work before the excavation is refilled, except with Borough approval.
This provision shall not relieve the contractor of the obligation
to remove and dispose of the excavated material at his expense.
E.
The contractor shall protect the work from damage during storms.
F.
The contractor shall authorize a competent person to be available
in case emergency situations arise during nonworking hours.
G.
The contractor shall inform the local police and fire departments
of work schedule and of possible street obstructions.
12.
Quality Assurance.
A.
Piping and specials specified herein shall be essentially the standard
products of manufacturers who have been regularly engaged in the successful
production of high quality materials of this type for at least 10
years.
B.
Defective piping or specials must be repaired or replaced.
C.
Pressure Tests for Ductile Iron Pipe.
(1)
All completed ductile iron pipe shall be tested for leakage
between valves. Tests shall be conducted as directed by the owner
and as noted below.
(2)
Test piping over four inches in diameter after installation
at 150 psi. The piping shall hold the test pressure for one hour without
a pressure loss. Contractor must repair any visible leaks.
D.
Pressure Tests for Copper Tubing.
(1)
Test piping one inch and less in diameter after installation
at 150 psi. The piping shall hold the test pressure for one hour without
a pressure loss. Repair any visible leaks.
(2)
Test piping 1 1/4 — two inches and less in diameter
after installation at 150 psi. The piping shall hold the test pressure
for one hour without a pressure loss. Repair any visible leaks.
13.
Delivery, Storage and Handling.
A.
Deliver, store and handle the piping, valves and specials in accordance
with the manufacturer's recommendations, and as supplemented herein.
B.
Pipe and related materials shall be loaded and unloaded by lifting
with hoists or skidding so as to avoid shock or damage. Under no circumstances
shall such material be dropped or skidded against piping already on
the ground.
C.
Pipe and related materials shall at all times be handled with care
to avoid damage. The interior shall be kept free from dirt and foreign
matter. All pipe, valves and appurtenances shall be carefully lowered
or raised into place, with suitable equipment in a manner that will
prevent damage to the material. Under no circumstances shall pipe
or accessories be dropped or dumped.
D.
Pipe, pipe linings, fittings, valves and all related materials shall
be thoroughly inspected for defects prior to their being installed.
Any defective, damaged or unsound material, as determined by the owner,
shall be repaired or replaced as directed at no additional cost to
the owner.
E.
All lumps, blisters and excess coating shall be removed from the
ends of each pipe. The joints shall be wire brushed and wiped clean
and dry and free from oil and grease before the pipe is installed.
[Ord. 752, 2/7/1994, § II]
1.
Ductile Iron Pipe.
A.
All ductile iron pipe shall conform to ANSI A21.51 (AWWA C151) and
shall be cement-mortar lined in accordance with American Water Works
Association AWWA C104. All ductile iron pipe should be double cement
lined and seal-coated inside and bituminous-coated outside. All water
mains four-inch diameter and larger shall be ductile iron pipe, except
that pipe in cathodic protection areas may be PVC.
B.
Joints shall be the push-on or mechanical joint type, conforming
to ANSI A21.11 specifications. Furnish joints will all required accessories.
C.
The contractor shall submit to the Borough, in triplicate, a certificate
from the manufacturer that the pipe furnished complies with all applicable
requirements of ANSI A21.51. Minimum thickness of ductile iron pipe
shall conform to ANSI A21.50 (AWWA C152).
2.
Fittings.
A.
Ductile iron fittings shall be accepted for all ductile iron pipe.
Ductile iron fittings shall have a minimum pressure rating of 250
psi, and shall conform to ANSI A21.52 (AWWA C152).
B.
Fittings used with ductile iron pipe shall be furnished with mechanical
joint ends conforming to ANSI A21.11. Mechanical joint fittings shall
be furnished Complete with either gray iron or ductile iron glands,
bolts and nuts, and plain rubber gaskets. The use of compact mechanical
joint fittings will not be acceptable.
C.
Flanged fittings, for exposure piping or when specified on the Drawings,
shall conform to ANSI A21.10 or ANSI B16.1. All flanges shall be faced
and drilled in accordance with ANSI B16.1. Machine bolts and nuts
for flanged fittings shall be steel, conforming to ASTM Designation
A307, Grade B. Dimensions of bolts and nuts shall conform to ANSI
B18.2. Threads of bolts and nuts shall conform to ANSI B1.1, Coarse-Thread
Series, Class 2A fit on bolts, and Class 2B fit on nuts. Dimensions
of gaskets shall conform to ANSI B16.21.
D.
All fittings shall be cement-mortar lined, paint seal coated inside,
and bituminous coated outside, conforming to AWWA C104. The contractor
shall submit to the Borough, in triplicate, a certification from the
manufacturer that all fittings comply with the ANSI Standards noted
above.
3.
Cement-Mortar Lining. Cement-mortar lining shall conform to ANSI
A21.4 (AWWA C104), except that the cement-mortar lining thickness
shall not be less than 1/8 inch for four inch through 12 inch main
sizes and 3/16 inch for 14 inch through twenty-four-inch main sizes.
Paint seal coat in accordance with ANSI A21.4.
4.
Mechanical Joint Retainer Glands. Are not to be used in the Borough.
5.
Valves.
A.
General. Valves 14 inch and larger shall be butterfly valves as long
as valve design pressures are not exceeded. Valves four to 12 inches
shall be resilient seated gate valves (AWWA C509).
B.
Butterfly Valves.
(1)
Butterfly valves shall conform to AWWA CS04, except where otherwise
specified herein. Butterfly valves shall be the tight-closing, rubber-seated
type. Valves shall be bubble tight at design pressure, and shall be
satisfactory for valve operation after long inactive periods.
(2)
Valves shall be the short body type with mechanical joint ends,
constructed of ductile iron conforming to ASTM A126, Class B. All
valves bodies shall have two hubs for shaft bearing housings, cast
integrally with the body. Body shell thicknesses shall conform to
Table three of AWWA C504. Valves shall be painted in accordance with
AWWA C504, § 4.2.
(3)
Valves shafts shall be one piece or two piece units securely
attached to the valve disc. Valve shafts shall have a minimum diameter
as specified in Table 4 of AWWA 504, and shall be 18-8 stainless steel,
Type 304. Shaft seals shall conform to AWWA C504, § 3.7.
Valves bearings shall be nylon, reinforced Teflon or graphite bronze.
(4)
Valve shafts shall provide leak-proof shutoff with design pressure
on one side and zero pressure on the other side. Valve seats shall
be the 90° type, and shall be bonded and/or mechanically secured
to the valve body or disc. Valve discs shall be alloy cast iron conforming
to ASTM A436, Type I or 2, or ASTM A439, Type D2, with a maximum lead
content of 0.003%.
(5)
Valve operators shall be worm gear or traveling nut type, fully
enclosed, and fitted with a standard two-inch square operating nut.
Operators shall produce the required output torque with a maximum
input torque of 150 foot pounds on the operating nuts. All valves
shall open to the left.
(6)
The contractor shall furnish manufacturer's certified shop drawings,
in triplicate, to the Borough. Valves shall be U.S. Pipe, Mueller,
Keystone, American- Darling or American Flow Control.
(7)
The contractor shall furnish manufacturer's certified shop drawings,
in triplicate, to the Borough for approval. The manufacturer shall
also certify that the valves comply with AWWA C509.
C.
Resilient Seated Gate Valves. Gate valves shall be four to 10 inch
and shall be resilient seated, meeting or exceeding AWWA C509. Gate
valves shall have mechanical joint ends and be equipped with two inch
operating nuts and be suitable for buried applications. Valves shall
open when turned to the left. Valve shall have fusion-bond epoxy coating
on the inside and outside of the valve. The valve shall be as manufactured
by American Darling, Kennedy, Clow or approved equal.
D.
Tapping Sleeves and Valves.
(1)
The contractor shall verify the type of existing pipe and the
outside diameter of pipe on which the tapping sleeve is to be installed.
The tapping sleeve shall have bell or caulked type ends. The sleeves
shall be made in two halves which can be assembled and bolted around
the main. Gaskets shall extend the entire length of the sleeve to
form a watertight joint when the side bolts are properly tightened.
(2)
The tapping valves shall have flanged inlets with mechanical
joint outlets. All valves shall be vertical ductile iron body, bronze
mounted, inside screw valves with two inch operating nuts, and double
disc gates. The valves shall open to the left, and shall be fitted
with O-ring seals. The tapping valves shall conform to the applicable
section of AWWA Standard C500.
(3)
The contractor shall furnish manufacturer's certified shop drawings,
in accordance with § 01340 specifications. In addition,
the manufacturer shall furnish an affidavit that the tapping valves
furnished comply with all applicable provisions of AWWA Standard C500.
(4)
The interior surface of each valve shall receive two coats of
asphaltic varnish in accordance with Federal Specification TT-V-5
I C. The exterior surface of each valve shall receive two coats of
bituminous coating in accordance with AWWA Specifications. The tapping
sleeves and valves shall be as manufactured by the Mueller Company
or approved equal.
6.
Valve Boxes. Underground valves shall have extension-type, roadway-type
valve boxes. Valve boxes shall be cast iron material with a strong
magnetic attraction, and shall have threaded construction. Valve boxes
shall have 5 1/4 inch shafts, shall have covers marked "WATER",
and shall be coated inside and out with a tar or asphalt compound.
Manufactured by Bingham and Taylor, Tyler or an approved equal.
7.
Extension Stems. Each underground valve whose operating nut is deeper
than four feet shall be equipped with an extension stem that is one-inch
square solid steel and fitted over the valve operating nut. The stem
shall have a two-inch square top operating nut and a spacer or spyder.
Each extension stem top shall be set in the range from three feet
to six inches below ground surface and shall not interfere with the
valve box cover.
8.
Small Valves.
A.
General. Small valves are defined as three inch or smaller valves
and shall be ball valves, unless specified otherwise.
B.
Gate Valves. Gate valves shall be the 125 pound double disc, parallel
seat, rising stem type and be handwheel operated. Valve bodies shall
be bronze and have screw ends. Valves shall be Crane Company or approved
equal.
C.
Globe Valves. Globe valves shall be the 125 pound bronze disc type
with screw ends and shall be handwheel operated. Valve bodies shall
be bronze. The valves shall be Crane Company or approved equal.
9.
Plastic Water Service Tubing. Not permitted in the Borough. When
existing plastic service lines need replacing, they will have to be
replaced with copper, see § 612(10). See § 612(4)
for explanation.
10.
Copper Tube. Copper tube shall conform to the requirements of ASTM
B-88, with Type K underground and Type L in exposed locations.
11.
Fittings for Copper Tubing.
A.
Fittings for underground copper tubing shall be compression type
conforming to ANSI B16.26, Cast Copper Alloy Fittings for Compression
Copper Tubes. Fittings for exposed copper tube shall be 125 pound
bronze screwed fittings, conforming to ANSI B16.15 or 250 pound fittings,
conforming to ANSI B16.17.
B.
Fittings connecting copper to copper shall be three-part straight
couplings and shall be Mueller Company H-15400 (no substitutes).
C.
Straight couplings connecting copper to male iron pipe thread shall
be Mueller Company H-15450 (no substitutes).
D.
Straight couplings connecting copper to female iron pipe thread shall
be Mueller Company H-15425 (no substitutes).
13.
Curb Stops and Boxes.
A.
Curb stop and box, designed to AWWA C800, should be all bronze construction,
inverted key stop.
B.
Curb stops should be Mueller 110 Compression Connection Outlet (no
substitutes allowed).
C.
Box must be extension type arch pattern base of two-piece cast-iron
construction coated inside and out with tar base enamel and topped
with cast iron lid secured with bronze bolt.
D.
Curb boxes may be Tyler, Bingham Taylor or Gardner (no substitutes),
however when the curb box is to be placed in concrete such as a sidewalk,
only Gardner boxes will be permitted.
14.
Clamping Devices. Socket clamps, anchor straps and tie rods, used
to anchor pipe fittings, shall be as manufactured by the Grinnell
Company, Inc., Stellar Clow Corporation or approved equal. The contractor
shall submit a sketch for Borough approval for installations using
clamping devices.
15.
Fire Hydrants. Fire hydrants shall be compression type with a 5 1/4
inch main valve, and a six inch mechanical joint inlet. The hydrant
shall have two 2 1/2 inch hose nozzles, and one 4 1/2 inch
pumper nozzle, complete with nozzle cap chains. The hydrant shall
be traffic type with breakable safety flange and stem coupling and
shall open counter clockwise. The hydrant shall have a hexagon operating
nut and shall be provided with National Standard threads on the hose
and streamer nozzles. Hydrants shall conform to AWWA C502 and shall
be leakproof at the design pressure. Hydrants shall be Mueller Centurion,
Model A423 (no substitution).
16.
Steel Encasement Pipe. All steel encasement pipe shall be either
fabricator pipe or mill pipe, manufactured in accordance with AWWA
C200, latest edition. Pipe shall have flame or machine cut plain ends,
which shall be beveled for field welding and circumferential joints,
and shall have a protective coating of Standard Mill Primer prior
to shipment. Steel encasement pipe shall be the size and wall thickness
specified in Part five of the American Railway Engineering Specifications
for pipelines and shall have a minimum tensile strength of 60,000
psi and a minimum yield point of 35,000 psi. Pipe shall conform to
ASTM Designation A135, Grade B; A139, Grade B; or A252, Grade 2.
17.
Mechanical Couplings.
A.
Steel mechanical couplings of the gasket, sleeve type shall be furnished
and installed where shown on the drawings or required. The coupling
shall be of the proper diameter to make a tight joint. The coupling
shall not have stops. All couplings shall be for 150 psi working pressure.
B.
Each coupling shall consist of one middle ring of a thickness and
length suitable for the proposed application and test pressures; two
followers; two rubber compounded wedge section gaskets and sufficient
trackhead bolts to properly compress the gaskets.
C.
Couplings to be buried shall be coated on the inside and outside
with two coats of asphaltic varnish in accordance with Federal specification
TT-V-51c. Manufactured by Ford FC1.
18.
Flanged Coupling Adapters. Flanged coupling adapters shall have a
cast iron body and a malleable or ductile iron follower flange. The
flange bolt circle, bolt size, and spacing shall conform to ANSI Standard
B16.1, Class 125. Flanged coupling adapters shall have two anchor
studs for up to eight inch pipe size and four anchor studs for 10
and 12 inch pipe sizes. Flange coupling adapters shall be Rockwell
Product No. Type 912, or approved equal.
19.
Pressure Regulating Valves.
A.
The installation of pressure regulating valves may be required by
the Borough to prevent excessive pressures at customer services or
other locations.
B.
Pressure regulating valves two inch and smaller shall be diaphragm-type
with cast-bronze body and galvanized iron strainer. They shall be
manufactured by Mueller Co., A. W. Cal Valve Mfg., Corp., Watson McDaniel
Co., Inc., Watts Regulator Co., or approved equal.
C.
Pressure regulating valves 2 1/2 inch and larger shall be Golden-Anderson
Model 45-D or approved equal.
20.
Air Release Valves. Air release valves shall be combination air release
valves as manufactured by Multiplex Manufacturing Company (Crispin
Universal), Valve and Primer Corporation (APCO) Model 143C, or Golden-Anderson
Valve Specialty Company (Model 1-CAV), or approved equal. Valves shall
be sized in accordance with manufacturer's recommendations based on
main size, main capacity and pressure.
21.
Precast Reinforced Concrete Manholes. Manholes shall have a precast
reinforced concrete manhole top section set on a cast-in-place concrete
base. The top section shall comply with ASTM Designation C478, Specifications
for Precast Reinforced Concrete Manhole Sections, and shall be an
eccentric cone design with a minimum inside base diameter of four
feet.
22.
Concrete. Concrete shall conform to PennDOT Specifications, Form
408, § 704, Cement Concrete and Ready-mixed Cement Concrete.
Class B concrete used for Class B bedding, reaction backings, or pipe
encasements shall have an average compressive strength of 3,000 pa
at 28 days and a three inch maximum slump. No compressive strength
shall be less than 2,500 psi.
23.
Manhole Brick and Mortar. Brick shall conform to ASTM Designation
C32, Grade NA, and mortar shall be one part cement, two parts sand
and water. Commercially prepared masonry cement shall conform to ASTM
Designation C91.
24.
Manhole Frames and Covers. Manhole frames and covers shall conform
to ASTM A48 for Class No. 30 and shall be Neenah Foundry Company No.
R-1772-A or approved equal. The word "WATER" shall be east in two-inch
high letters on the cover.
25.
Manhole Steps. Manhole steps shall be forged 6061-T6 aluminum alloy
or Fiberglass reinforced plastic cast into the precast cement manhole
top section, shall be aligned vertically and spaced a maximum 12 inch
apart on equal centers, and shall satisfy OSHA requirements.
26.
Meters.
A.
General.
(1)
All meters will be supplied by the Borough at no cost to the
owner. The owner must notify the Borough at least 60 days prior to
the installation requesting the number of meters and their sizes.
(2)
No meter by-pass lines will be accepted except in installations
at emergency institutions (hospitals, etc.).
B.
Residential Type (5/8 inch, 3/4 inch and one inch). The meters shall
conform to the AWWA Standard for Cold-Water Meters — Displacement
Type, C700, except as noted below. The capacity of the meters shall
conform to Tables I and 2 of AWWA Standard, C700. The outer case of
all meters shall be bronze composition and shall be frost protected.
The intermediate gear train shall be included in the register box.
C.
Commercial Type (1 1/2 inches and two inches). The meters shall
conform to the Standard for Cold Water Meters — Displacement
Type, C700. The meter case, measuring chamber, and register box and
lid shall be bronze. All interior parts shall be movable without disturbing
the connections to the connections to the pipeline.
D.
Compound Meters (three inches through 12 inches). Meters shall conform
to the AWWA Standard for Cold Water Meters -Compound Type, C702. Main
case connections shall be flanged and measuring chambers shall be
bronze.
E.
Fire Service Meters. Fire service meters shall conform to the AWWA
Standard for Cold Water Meters — Fire Service Type, C703. Measuring
chambers shall be bronze.
F.
Remote Registration Systems. Remote registration systems shall conform
to the AWWA Standard for Direct Reading Remote Registration Systems
for Cold-Water Meters, C706, and the AWWA Standard for Encoder-Type
Remote-Registration systems for Cold-Water Meters, C707. The system
shall visually register flow at the meter as well as at the remove
register. The meter serial number shall be imprinted on the register.
Wire or tubing shall be suitable for exposed mounting.
G.
Catalogues. The manufacturer or vendor shall furnish the Borough,
in triplicate, with catalogues and brochures describing the materials
to be furnished. The information shall include repair parts lists
and loss of head curves.
27.
Meter Pits. Not permitted.
28.
Backflow Prevention Devices.
A.
General. A backflow prevention device shall be installed on all new
water services.
B.
Reduced Pressure Backflow Preventers. This device shall be used at
connections where toxic chemicals, sewage or other substances determined
by the Borough to be hazardous, might enter the distribution system.
It shall conform to AWWA C506, shall be minimum 150 psi design pressure,
and shall be equipped with suitable test cocks. The device consists
of an automatic pressure differential relief valve located in the
zone between two or more independently acting check valves, which
in turn are located between two tightly closing shutoff valves. All
reduced pressure backflow preventers for fire service connections
shall be BEECO Model 6-U, or approved equal. All other reduced pressure
backflow preventers shall be BEECO Model 12 or 6-C, CLA-VAL Co. Clayton
Model RP-2 or RP-I, Watts Regulator Company Series 909 or approved
equal.
C.
Double Check Valve Assemblies. This device shall be used at connections
where nuisance materials, such as foods and beverages, or other materials
that do not constitute a health hazard, might enter the distribution
system. It shall conform to AWWA C506, shall withstand a 150 psi design
pressure, and shall be equipped with suitable test cocks. The device
consists of an assembly of independently acting check valves located
between two tightly closing shut-off valves but without a pressure
differential relief valve. All double check valve assemblies shall
be BEECO Model VC, Hershey No. 1, CLA-VAL Co. Clayton D, or approved
equal.
[Ord. 752, 2/7/1994, § III]
1.
General.
A.
Excavation and backfill work shall conform to the AWWA Standard for
Installation of Cast Iron Water Mains, C600, plus the changes and
additions specified herein. The contractor shall conform to the regulations
of all governmental agencies having jurisdiction over the work.
B.
Standard details for trench excavations are attached to these specifications
and are made a part thereof. These details cover earth trenches, rock
trenches, trenches in unsuitable soil, trenches in roadway shoulders
and trenches in paved areas.
2.
Rock Excavation.
A.
Unless otherwise approved by the Borough, rock shall be removed from
the trench at least 25 feet in advance of pipelaying. Rock shall be
excavated for the full specified width of the trench for a depth of
eight inches below the outer bottom of the pipe.
B.
Rock below the specified subgrade that is shattered and unfit for
foundation in the Borough's opinion shall be removed and the area
backfilled to the proper subgrade with Class B concrete or coarse
aggregate subgrade material. Rock encountered at blank connections
or stubs shall be excavated at least 10 feet from the blank connections
in the direction of any proposed future extension, and the excavation
shall conform to the requirements for the extension.
3.
Explosives and Blasting.
A.
Blasting procedures shall conform to Pennsylvania Department of Labor
and Industry regulations, AWWA C600, § 6.12, and NFPA 495.
Rock within five feet of any existing water or gas main, sewer, electrical
conduit, or other utility or structure shall be removed by means other
than blasting. The Borough reserves the right to designate any other
specific limits of the work in which rock shall be removed by means
other than blasting.
B.
A licensed blaster is required and a seismographic monitoring plan
shall be implemented.
C.
Where lines pass in vicinity of existing construction, the contractor
shall be required to perform a preblast survey of the existing structures
to established baseline conditions. This should be done by licensed
engineer specializing in this work.
4.
Removal of Pavement and Storage of Materials.
A.
The contractor shall grub and clear the surface and remove all surface
materials over the line of the trench; properly separate and classify
the material removed; and store, guard, and preserve any materials
required for backfilling or other purposes. All materials taken from
the trenches shall be stored away from the street or highway, unless
otherwise authorized by the Borough or PennDOT. The materials shall
be placed or stored in a manner that will not obstruct any pipe, culvert,
gutter, drain, ditch or waterway. The width of existing pavement removed
shall be no greater than the trench widths specified in § 613(5),
unless otherwise directed by the Borough. Pavement shall be cut into
neat lines with a concrete saw or air spade in accordance with local
government regulations.
B.
In business districts, State highways, streets with heavy traffic,
narrow streets, or any other locations where working space is limited,
the excavated material shall, when required by the Borough, be removed
as soon as excavated, contractor must comply with PennDOT 459 regulations
when working on State highways. The contractor shall not cast excavated
material beyond the curb or right-of-way lines, or on sidewalks or
lawns. Excess excavated material shall be removed to the location
provided by the contractor. The contractor may bring back this material
for backfill or provide other suitable material. When soft or wet
material must be hauled over streets, the contractor shall prevent
spillage. All topsoil within the trench limits shall be removed prior
to excavation and replaced after backfilling.
5.
Width and Depth of Pipe Trenches. The width and depth of pipe trenches
shall conform to the dimensions shown on the attached standard detail
drawing. Trench sides shall be vertical, and dimensions shall apply
to the inside faces of any required sheeting. The trench depth shall
include a minimum depth of cover of four feet. The contractor shall
not excavate below the depths specified, except where excavation of
rock or unsuitable material is required. Trenches excavated beyond
the specified depths without written approval of the Borough shall
be backfilled with thoroughly tamped Class A bedding material at the
contractor's expense.
6.
Preparation of Pipe Trenches. Pipe trenches shall be uniformly graded
to planned subgrade. If subgrade conditions are satisfactory, as determined
by the Borough, Class A bedding material shall be furnished and placed
as described below. If subgrade conditions are not suitable, the contractor
shall excavate the unsuitable material and backfill in accordance
with standard detail.
7.
Bedding Material. Stone bedding shall be provided in all cases except
where conditions require class bedding. Stone bedding shall consist
of a six-inch encasement of IB stone to be placed in two lifts. The
first lift shall be filled 1/2 of the pipe barrel and chalked or vibrated
underneath the pipe. The second lift is to be placed at a height of
six inches above the pipe and leveled out.
8.
Sheeting, Shoring and Bracing. Sheeting, shoring and bracing shall
conform to Pennsylvania Department of Labor and Industry Regulations,
OSHA regulations, and AWWA C600, § 616(13), unless otherwise
specified herein. Sheeting, bracing and shoring shall be designed
by contractor. Sheeting, bracing and shoring shall be withdrawn and
removed as the trenches are being backfilled; except where the Borough
shall require that same be left in place, or where the Borough permits
the contractor to leave same in place. Voids or holes left by the
sheeting or sheet piling shall be filled with compacted approved material.
9.
Backfilling Trenches.
A.
Trench backfill shall conform to PennDOT 459 regulations, PennDOT
highway occupancy permit regulations and AWWA C600, except as specified
herein and on the standard trench details.
B.
Backfill material shall be carefully placed in trenches according
to specified layer thickness, and each layer shall be thoroughly compacted.
The amount of compaction equipment and compaction effort is subject
to Borough approval.
(1)
Select Backfill. Select backfill material shall consist of clean,
dry earth and shall not contain stones larger than one inches. Excavated
material may be used if approved by the Borough.
(2)
Ordinary Backfill. Ordinary backfill material shall consist
of clean dry earth, and shall not contain stones larger than six inches.
Excavated material may be used if approved by the Borough.
(3)
Trenches Located on State Highways.
(a)
All trench excavation and backfill on State highways shall conform
to PennDOT requirements. The applicant shall pay all costs of PennDOT
inspections.
(b)
Backfill of transverse or longitudinal trenches under paved
surfaces shall be refilled from a point six inches above the top of
pipe to the pavement in four inch mechanically-compacted layers with
coarse aggregate. The coarse aggregate shall be Pennsylvania No. 2RC,
conforming to § 677.2 of PennDOT Specifications, Form 408.
The contractor shall remove excess excavated material at his or her
expense. Backfill under unpaved shoulders shall be refilled from a
point one foot above the top of pipe to a point 18 inches below the
existing grade of the shoulder in four inch mechanically-compacted
layers with approved backfill material. The backfill shall conform
to § 206.2 of PennDOT Specifications, Form 408.
(4)
Trenches Located in Borough Streets and Alleys.
(a)
Trenches located along Borough streets shall be refilled in
four-inch mechanically-compacted layers from a point six inches above
the top of pipe to the pavement subgrade with suitable, approved ordinary
backfill.
(b)
Should the excavated ground be determined by the Borough not
to be suitable, approved ordinary backfill, No. 2RC course aggregate
will be substituted.
(5)
Unpaved Areas Not Subject To Traffic. Trenches in unpaved areas
not subject to traffic shall be refilled from a point six inches above
the top of pipe to the existing grade in eight inch mechanically-compacted
layers with approved ordinary backfill. In areas requiring seeding,
the backfill shall be terminated four inches below the existing grade
and the final four inches refilled with approved topsoil.
10.
Dewatering. The contractor shall keep all excavations free from water.
Contractor must comply with Lancaster County Soil Conservation District
regulations.
11.
Existing Underground Utilities or Obstructions.
A.
The contractor shall conform to General Assembly Act No. 287 and
Act No. 172.
B.
The contractor shall be responsible for all damage to existing underground
utilities due to operations. The contractor shall determine the correct
location of utilities by means of exploratory test pits and information
obtained from utility owners; and shall be responsible for all utilities
and other obstructions, whether or not they are shown on the drawings
or are located incorrectly. Any damage to existing utilities shall
be repaired at the contractor's expense and to the satisfaction of
the owner of the utility.
C.
The contractor shall uncover and verify the location of utilities
and other underground obstructions far enough in advance of the pipe
laying to permit changes in pipe alignment or grade to bypass the
obstructions without removing pipeline. If necessary, the contractor
shall be responsible for removing and reinstalling the pipe at his
own expense to avoid utilities.
D.
The contractor shall support utility poles located at or near the
trench line limits, and shall contact utilities for pole supports
when necessary. If the utility poles are damaged, the contractor shall
be responsible for repairs.
12.
Removal of Obstruction.
A.
Any removal, realignment or change in the position of any pipe, conduit,
pole or other structure due to the construction shall be done at the
contractor's expense and with the approval of the owner of the obstruction.
B.
If fencing removed served as an enclosure for animals, the contractor
shall prevent the escape of the animals. Trees and shrubs in rights-of-way
shall not be damaged or cut down, unless authorized by the owner of
the property and the Borough. Trees cut down shall have their stumps
removed, and all resulting debris shall be removed and disposed of
by the contractor at his or her expense. When the water main is completed,
the contractor shall restore the temporary and permanent rights-of-way
to their original condition at his or her own expense.
13.
Change of Trench Location or Depth. The Borough reserves the right
to require changes in the trench location or depth. If field conditions
require the lowering of the pipe to a depth greater than that specified,
the contractor shall obtain approval from the Borough to install the
pipe at the lower depth. If the contractor installs the pipe at the
lower depth without such approval, and the Borough determines that
a different pipe class is required at the lower depth, the contractor
shall excavate and remove the pipe of the lower class and shall install
the pipe class required by the Borough at his or her own expense.
14.
Length of Open Trench. The Borough reserves the right to limit the
amount of trench opened in advance of pipelaying to not more than
100 feet and the amount of pipe laid in advance of backfilling not
more than 50 feet. At the close of work at night or at the discontinuance
of work, not more than 20 feet of trench shall remain open at any
location and the Borough reserves the right to require the refilling
of all open trenches.
15.
Accommodation of Drainage. The contractor must comply with Lancaster
County Conservation District requirements. The contractor shall keep
gutters, sewers, drains, and ditches open at all times for surface
drainage. The contractor shall direct water across or over pavements
only through approved pipes or properly constructed troughs and shall
do so at his or her own cost and expense. The ground surface shall
be properly ditched to prevent water from running into the pipe trenches.
16.
Accommodation of Traffic.
A.
These provisions supplement the requirements of § 611(9).
The contractor shall comply with PennDOT Publication 203 Work Zone
Traffic Control standards. Streets shall not be unnecessarily obstructed,
unless the contractor obtains permission in writing to close a street.
The contractor shall take all necessary measures to keep the street
or road open and safe for traffic. During shutdowns of work, the contractor
shall insure that all streets affected by construction are open and
can be safely traveled by vehicles.
B.
The contractor shall construct and maintain, without extra compensation,
adequate and proper bridges over excavations for safe accommodation
of pedestrians or vehicles. The contractor shall furnish and erect
approved barricades at crossings of trenches or along the trench to
protect the public.
C.
All stored materials and equipment which may be obstructions to traffic
shall be protected by approved lights, lanterns, torches or guards.
The contractor shall not obstruct fire hydrants.
17.
Protection of Property and Structures.
A.
The contractor shall sustain in their places, and protect from direct
or indirect injury, all poles, pipes, conduits, tracks, roadways,
curbs, walks, walls, buildings and other structures or property in
the vicinity of his work. The contractor shall be responsible for
any damages and assume all expense for direct or indirect injury,
caused by his work, to any person, property or structure. The contractor
must maintain access to all mailboxes.
B.
Pipes and underground conduits exposed as a result of the contractor's
operations shall be adequately supported by timber or planking, such
that the anchorage of the supports will not be distributed or weakened
during backfilling. Approved backfill material shall be carefully
tamped under and around the supports, and all supports shall be left
in place.
18.
Permits and Licenses. The applicant, or the Borough if it elects
to do so, shall obtain the necessary permit from PennDOT for the occupancy
of State highways. The applicant or the Borough, depending on ultimate
ownership, will submit the required data and execute agreements with
the railroad companies for the installation of water mains on their
rights-of-way. The contractor shall obtain and pay for any other permits
required by local or other governmental agencies having jurisdiction
over the streets to be opened. Prior to opening any excavation within
the right-of-way of any railroad, state highway or borough street,
necessary agreements must be executed and that all required permits
must be obtained by the contractor, the applicant or the Borough.
19.
Cleanup. As the trenches are backfilled, the contractor shall immediately
remove and dispose of all surplus material. If the contractor fails
or neglects to keep roads, sidewalks, and other areas free of surplus
material after 24 hours, written notice to the contractor and the
costs of said work shall be charged to the contractor. When the repaving
is completed, all paved surfaces shall be swept clean, and if required
by the Borough, shall be flushed with water. All such work shall be
at the contractor's expense.
20.
Maintenance of Unpaved Areas. The contractor shall maintain all backfilled
excavations in all unpaved areas to the satisfaction of the owner
for a period of one year from the date when the water main is accepted
by the Borough.
21.
Clearing and Grubbing.
A.
Clearing includes the cutting and disposal of all trees, vegetation,
and other objectionable material occurring within a width of the work
area established prior to construction. Grubbing includes the removal
and disposal of all stumps and root mats located within the established
area. The method of disposal of waste material shall conform to all
State and local laws, ordinances and regulations, including the Air
Pollution Control Act, approved January 8, 1960, or as amended.
B.
Shade trees, hedges, shrubbery, flowers and grass on private or public
property shall not be cut or destroyed. The contractor shall protect
and/or remove and replace shade trees, hedges, shrubbery and flowers
along the water main and be responsible for establishment of firm
growth of said trees and other vegetation. The Borough reserves the
right to designate the size and number of trees to remain in place
and these trees shall be protected from damage. Any trees killed or
damaged by the contractor's operations shall be replaced. Contractor
must comply with Lancaster County Soil Conservation District requirements.
22.
Pavement Restoration. If existing pavement is destroyed while installing
water lines in the Borough, the following guidelines shall be followed:
A.
Temporary Paving. At the end of each working day, the trench shall
be temporarily paved with no less than a three-inch thick, tamped
layer of cold patch material. The contractor will be responsible for
maintaining this temporary paving until such time that permanent paving-restoration
occurs.
B.
Permanent Paving.
(1)
Permanent paving shall not occur until the entire water line
project is completely in place. The cold patch material shall be removed
and the trench edges shall be saw cut back a minimum of 12 inches
on both sides. The contractor shall then match the types and thicknesses
of existing pavement materials. However, under no circumstances shall
there be anything less than two inches of BCBC and one inch of wearing
course.
(2)
Prior to placing any asphalt material in the trench, the sides
of the existing asphalt shall be primed with AC-20.
(3)
Upon completion of final compaction of the wearing course, the
top edges will be sealed with AC-20.
(4)
This paving specification applies to streets, alleys, parking
lots, driveways and any other paved surface.
[Ord. 752, 2/7/1994, § IV]
1.
General. This section covers the installation of the water mains,
complete with all fittings, valves, reaction backings and/or harnessing,
connections and appurtenances. The contractor shall conform to AWWA
Standard for Installation of Cast Iron Water Mains, C600, except where
otherwise specified herein.
2.
Responsibility for Material. The contractor shall be responsible
for all material, and shall replace at his own expense all such materials
found defective in manufacture or damaged in handling, as determined
by the Borough. Any materials found defective shall be promptly removed
from the site. Defective pipe shall be classified as follows:
A.
Damage to interior or exterior paint seal coats.
B.
Damage to interior cement-mortar lining.
C.
Insufficient cement-mortar lining thickness.
D.
Poor quality interior paint seal coat causing a partial obstruction
in the pipe round.
E.
Pipe out of round.
F.
Damaged pipe barrel area causing a reduction in effective pipe thickness.
G.
Any material that is dropped during handling, regardless of its apparent
condition.
3.
Handling of Material. Pipe shall be so handled that the coating and
lining is not damaged. If any part of the coating or lining is damaged,
the repair shall be made by the contractor at his or her expense and
to the satisfaction of the Borough. Valves and hydrants shall be stored
and kept dry before installation. Any material that is dropped during
handling is subject to rejection regardless of its apparent condition.
4.
Alignment and Grade. Where the proposed pipeline route is on a curve,
the contractor may deflect the pipe at the joints to published manufacturer
tolerances. Where underground conditions require a change of alignment
or grade, such change shall be made only with the written consent
of the Borough. When a change in grade is indicated which will result
in the pipe having more cover than originally anticipated, the class
of pipe installed at the location shall withstand the new loadings.
Except at predesignated points, no high points shall be established
where air can accumulate. If field conditions necessitate a change
in the pipe profile and, in the opinion of the Borough, the change
requires the installation of a fire hydrant, the contractor shall
install the same.
5.
Lowering Water Main Material into Trench. The contractor shall conform
to AWWA Specification C600, § 7.
6.
Cleaning Pipe and Fittings. All lumps, blisters and excess coating
shall be removed from the end of each piece of pipe and fitting. The
outside of the spigot, the inside of the bed and the gasket shall
be thoroughly wiped clean and dry before the pipe is installed.
7.
Laying Pipe.
A.
Following trench excavation, pipe laying shall proceed upgrade with
pipe laid carefully, hubs upgrade, spigot ends fully centered into
adjacent hubs, and true lines and grades given.
B.
Each section of pipe shall rest upon the pipe bed for the full length
of its barrel, with recesses excavated to accommodate bells and joints.
Each pipe shall be firmly held in position so that the invert forms
a continuous grade with the invert of the pipe previously placed.
C.
Under no conditions shall pipe be laid in water, on subgrade containing
frost, and/or when trench conditions are unsuitable for such work.
In all cases, water shall be kept out of the trench until concrete
cradles, supports, encasement or saddles, where used, and materials
in the joints have hardened.
D.
Any pipe that has its grade or joint disturbed after laying shall
be taken up and relaid. Any section of pipe already laid and found
to be defective shall be taken up and replaced with new pipe without
expenses to the owner.
E.
Walking or working on top of the completed pipeline, except as may
be necessary in backfilling or tamping, shall not be permitted until
the trench has been backfilled to a height of at least two feet over
the top of the pipeline.
F.
At times when pipe laying is not in progress, the open ends of the
pipe shall be closed by watertight plug.
G.
All joints shall be made in accordance with the pipe supplier's specifications
and in accordance with the following instructions:
(1)
Push-on Type Joints.
(a)
Cleaning and assembly of push-on joints shall conform to AWWA
C600, § 9c.3. The inside of the bell and the outside of
the spigot end shall be thoroughly cleaned to remove oil, grit, excess
coating, and other foreign matter. These parts shall be kept clean
throughout assembly at the joint.
(b)
The circular rubber gasket shall be flexed inward and inserted
in the gasket recess of the bell socket. Care shall be taken to insure
that the gasket is properly seated.
(c)
A minimum amount of lubricant shall be evenly applied to the
spigot end with a brush. Gasket lubricant shall be as supplied by
the manufacturer.
(d)
The spigot end shall be properly centered, and force shall be
applied using a ratchet jack-type tool or a roller chair-type ratchet
jack, until the white stripe at the spigot end is just visible at
the face of the bell. Any required deflection shall be made only after
the joint assembly has been made.
(e)
Proper positioning of the gasket shall be checked with a "feeler"
gauge after each joint is made.
(f)
The edges of "field cut" pipe shall be touched up with a file
or grinder so as to remove rough edges and facilitate assembly.
(2)
Mechanical Joints. The cleaning, assembly, and bolting of the
mechanical joint shall conform to AWWA C600, §§ 9b.3
and 9b.4.
(3)
Bell-and-Spigot Joints.
(a)
Bell-and-spigot joints shall conform to AWWA Specification C600,
§ 9a.
(b)
Thoroughly clean the bell and the spigot end of the pipe of
all foreign matter and wash them with soapy water.
(c)
Slip the gland and gasket over the plain end and seat the spigot
end in the bell (the small end of the gasket and the lip on the gland
shall face the bell).
(d)
Push gasket into position with fingers, making sure it is evenly
seated.
(e)
Moved gland into position for bolting, insert bolts and make
all nuts finger-tight, keeping the spigot centrally located within
the bell.
(f)
Bolts shall be tightened in accordance with the manufacturer's
written instructions.
(g)
If effective sealing is not obtained at the maximum torque indicated
above, the joint must be disassembled and reassembled after thorough
cleaning. Under no circumstances are bolts to be over stressed.
(4)
Flanged Joints.
(a)
Flanged joints shall not be used for buried service.
(b)
Flanges shall be wiped clean with a solvent-soaked rag prior
to installation. The gasket shall also be wiped clean.
(c)
The pipe, fittings and valves shall be properly supported during
installation.
(d)
All flanges shall be properly aligned and checked with a spirit
level horizontally along the pipe and vertically across the flange
faces.
(e)
With flanges secured in position, half the bolts shall be inserted
at the bottom of the flange, the gasket inserted between the flanges
and the remaining bolts inserted.
(f)
The threads of the bolts shall be given a light coating of thread
lubricant, and the nuts shall be installed on the bolts and turned
up by hand. The nuts shall be tightened with a wrench by the crossover
method to load the bolts evenly until the joints are tight.
(5)
Mechanically Coupled Joints. Mechanical couplings shall be installed
in strict accordance with the manufacturer's instructions, and in
a manner to insure permanently tight joints under all reasonable conditions
of expansion, contraction, shifting and settlement. The required torque
ranges for the joint harness shall be as specified by the pipe manufacturer.
8.
Setting Valves and Valve Boxes. All valves shall be provided with
a valve box as detailed on the drawings. Unless otherwise directed
by the Owner all valves shall be set with their stems truly vertical.
The tops of the valve box shall be set neatly to the grade of the
surface of the existing ground, unless directed otherwise by the Owner.
The valve box shall not transfer shock or stress to the valve and
shall be centered and plumb over the wrench nut of the valve.
9.
Setting of Hydrants. Fire hydrants shall be installed as specified
in AWWA C600, § 11. Where there is no sidewalk or curb the
hydrant shall be not less than six feet from the edge of the paved
road surface. In no case will hydrants be located closer than 25 feet
to a building except where building walls are blank firewalls. Hydrants
shall not be located closer than three feet to any obstruction or
in front of entrance ways. All hydrants shall stand plumb with the
pumper nozzle facing the curb, and six inches behind it, and the hose
nozzles parallel to the curb.
10.
Anchorage.
A.
All plugs, caps, tees, and bends (both horizontal and vertical) shall
be provided with concrete reaction backings, or shall otherwise be
anchored as authorized by the Borough. Sizes of required concrete
reaction backings are shown on the attached standard detail drawing.
Where the water mains must be tested before connections existing mains
can be installed, temporary reaction backings or restrained type plugs
shall be installed. Concrete for reaction backings shall be Class
B cement concrete as specified in § 612(26). Care should
be taken to insure that all weep holes remain open and that no concrete
covers any bolts or nuts or interferes with future repairs or replacement.
B.
The contractor shall submit a sketch and obtain the Borough's approval
for the anchorage of the pipe and fittings at each connection, or
at any other locations designated by the Borough. The Borough reserves
the right to require mechanical joint retainer glands in addition
to concrete backings.
C.
Hydrant bases shall be braced against undisturbed earth with reaction
backings, or shall be restrained with tic rods, clamps or retainer
glands, in a manner approved by the Borough. The approved hydrant
installation is shown on the attached standard detail drawing.
11.
Connections to Existing Water Lines. Connections shall be made to
existing water mains at various points in the project. These connections
shall be made in strict accordance with the requirements set forth
by the Engineer, and as specified hereinafter.
A.
General.
(1)
Each connection to the existing water line shall be made under
pressure with a tapping sleeve and valve. If this is not possible,
then the following conditions must be met.
(2)
The contractor shall take special precautions so as not to disturb
in any way the functional operation of the existing water main; except
on a preplanned scheduled basis, the time and date of which will be
established in advance with the Engineer and owner. The contractor
shall at no time operate water valves in the existing water system
without the presence of a duly qualified representative of the owner.
(3)
The contractor shall be responsible for working in coordination
with the owner to insure that all customers that may be affected by
the interruption of service are given adequate notice of the pending
interruption of service. If the number of customers and length of
interruption are such, in the opinion of the owner, to justify the
need, the contractor shall place advertisements in the local newspaper
a minimum of three times, prior to the scheduled interruption of service.
The cost of such advertising shall be included in the price bid for
the various connections.
B.
Schedule of Work. The contractor shall follow the installation schedule
as outlined below:
(1)
In locations where new water mains are to be connected to existing
water mains, the contractor will not be permitted to proceed with
the construction of the connection until he has dug test pits and
determined the exact location, elevation and type of existing pipe
and its outside diameter. The contractor is reminded that old water
main pipe may vary in roundness and outside diameter and consider
this factor in ordering materials for the connection. The cost of
excavating, maintaining, and backfilling test pits shall be considered
incidental to the earth excavation and backfill, and no separate payment
will be made. Pits shall be protected and backfilled, if required,
by the contractor.
(2)
If the condition of the connection is regulated by geometry,
as determined by data obtained from the excavation of the test pits,
the contractor shall order any necessary additional materials.
(3)
The contractor shall notify the owner at least five days in
advance of the time he or she proposes to install the connection,
and shall establish with the owner the procedures to be followed in
installing the connection, including the day and time of the proposed
shutdown, and establish a new date and time for the shutdown, based
on the owner's knowledge of system conditions. The contractor is hereby
warned that the owner reserves the right to require that any particular
connection be made at night or on a Sunday.
(4)
Before the start of the installation of a connection, the contractor
shall do as much work in advance as possible prior to actually shutting
down the main, and shall have all necessary tools, equipment, materials
and labor on hand at the start of the work.
(5)
Once the existing main is cut, work shall be continuous until
water service is restored.
(6)
When installing connections, estrained joints and tie rods and
clamps shall be used to the maximum extent possible, in lieu of concrete
thrust blocks when installing connections, unless shown otherwise
on the drawings. If it is necessary to use concrete thrust blocks,
the high early strength cement concrete shall be used.
12.
Service Lines.
A.
General. The sizing of customer service lines shall be subject to
Borough approval and shall be based on the length of line and the
water demand. Residential service lines shall normally be 3/4 inches
in size. The service line shall normally consist of a corporation
stop, copper pipe, curb stop and box.
B.
Materials.
(1)
Corporation Stops. See § 612(12).
(2)
Copper Tube. See § 612(10).
(3)
Fittings for Copper or Plastic Tubing. See § 612(11).
(4)
Curb Stops and Boxes. See § 612(13).
(5)
Steel Encasement Pipe. Steel pipe, three inches and smaller,
for encasement of service pipes shall be Schedule 40 welded and seamless
black steel pipe, conforming to ASTM Designation A120.
C.
Construction Methods.
(1)
When installing corporation stops, the main shall be tapped
at a 45° angle with the horizontal. Service tubing shall be installed
as a continuous length of pipe and shall have a minimum cover of four
feet. Curb stops shall be vertical, with the top of the curb box a
finished grade. Where grading may be still in progress, the curb box
shall be marked by a high stake.
(2)
Where service lines cross highways or streets, a 1 1/4
inch (for 3/4-inch service pipe) black steel casing pipe shall be
installed across the street by boring, jacking, auguring or drilling,
and the service line shall be inserted in the casing pipe. If underground
conditions do not permit boring, pushing, or jacking, the contractor
shall obtain authority approval before proceeding with an alternate
method of installation. PennDOT normally requires that water mains
crossing State highways be installed in a casing pipe which shall
be bored, jacked or augured under the highway, as specified in § 616,
"Special Crossings." However, PennDOT may permit the open cutting
of trenches across State highways as specified in § 616.
13.
Railroad and Creek Crossings. Pipeline crossings under railroad tracks
and creeks shall be installed in accordance with § 616,
"Special Crossings."
14.
State Highway and Street Crossings.
A.
Maintenance and control of traffic shall be as specified in § 611(9)
and the accommodation of traffic as specified in § 613(16).
B.
All construction on state highway right-of-way shall be subject to
inspection by PennDOT personnel. Contractor shall comply with PennDOT
459 Regulations and Highway Occupancy Permit Regulations. Streets
under local jurisdiction may also be subject to inspection by the
Borough Engineer.
15.
Corrosion Control. Water mains that cross pipelines which are now,
or may be in the future, cathodically protected shall be constructed
using PVC pipe as specified herein. The PVC pipe shall extend a minimum
distance of 20 feet from the crossing pipe on each side. The PVC pipe
shall be suitable for direct connection to cast iron or ductile iron
pipe, and shall conform to AWWA C900. The PVC pipe shall be Johns-Manville
Blue-Brute Thickwall Ring-Tite PVC water pipe or approved equal.
16.
Reaction Backings. Concrete reaction backings shall be provided for
all tees, crosses, and bends, both horizontal and vertical. Concrete
shall be Class A in accordance with PennDOT Form 408. Reaction backings
shall be designed for 175 psi minimum; contractor shall submit design
for approval.
[Ord. 752, 2/7/1994, § V; as amended by Ord. 829,
11/15/2001]
1.
General.
A.
This section covers the testing and disinfection of the water mains.
The contractor shall prepare a schedule and procedure for the testing
and disinfection of the different parts of the work and shall submit
the same to the Borough for approval two weeks before beginning the
testing and disinfection. The contractor shall perform the testing
and disinfection prompt and efficiently without interference to the
system operation. The contractor shall give the Borough 24 hours notice
before testing any main.
B.
The contractor shall begin testing and disinfection of the various
sections of water mains promptly upon the completion of a section
of work, unless the Borough approves otherwise. The Borough reserves
the right to limit the amount of water main to be tested. The contractor
shall close the section of water main to be tested by valves or temporary
plugs and shall install temporary reaction backings where required.
2.
Hydrostatic and Leakage Test.
A.
Hydrostatic pressure tests shall not be made until at least seven
days after concrete reaction backings are installed. The contractor,
at his option and expense, may use high early strength cement concrete
for reaction backings, in which case hydrostatic pressure tests shall
not be made until at least three days have elapsed.
B.
The contractor shall completely backfill the trench, or may partially
backfill the trench with written approval of the Borough, prior to
carrying out the pressure test.
C.
The section of water main being tested shall be filled with water
a minimum of 48 hours before the main is tested. The contractor shall
insure that air is expelled from the pipeline in accordance with AWWA
C600, § 4.1.3. Any taps necessary to release air or water
from the main during testing shall be made at the contractor's expense,
unless retained by the owner for other use.
D.
After the pipeline has been filled with water for 48 hours, the contractor
shall conduct a hydrostatic or pressure test. The duration of the
pressure test shall be at least two hours. Each section of water main
shall be tested under the design pressure specified in § 611(2)(C)(2),
measured at the low point of the section of main being tested. The
proposed test pressure shall be approved by the Borough prior to testing,
and the contractor shall not employ a test pressure which exceeds
the allowable pressure of any installed pipe, valve or appurtenance.
E.
In order to successfully pass the pressure test the line or section
of line being tested cannot lose any pressure during the two hour
test.
3.
Disinfection.
A.
General. Before being placed in service, all pipe installed under
this contract shall be disinfected by chlorination in accordance with
AWWA C60 1, except where specified otherwise in this Section.
B.
Preliminary Flushing. Prior to disinfection, the sections of pipeline
being disinfected shall be flushed thoroughly. If necessary, the line
shall be opened up to flush as in a case where no hydrants are available.
C.
Form of Chlorine for Disinfection. The contractor shall use either
liquid chlorine or calcium hypochlorite solution for disinfection
in accordance with AWWA C601, § 6.
(1)
Liquid Chlorine. A chlorine-gas water mixture shall be applied
by means of a solution feed chlorinating device in combination with
a booster pump for injecting the chlorine gas-water mixture into the
main to be disinfected. This method shall be used only if the contractor
can demonstrate to the Engineer that the person supervising the operation
is thoroughly familiar with and experienced in the handling of chlorine
gas, and that the equipment to be used is suitable, and that proper
safety equipment is available.
(2)
Calcium Hypochlorite Solution. A chlorine-water solution of
1% available chlorine shall be prepared, using granular calcium hypochlorite,
and this solution shall then be injected or pumped into the pipeline.
A chlorine water solution of 1% available chlorine may be prepared
by mixing approximately one pound of calcium hypochlorite with 8.5
gallons of water.
D.
Application of Chlorine. The hypochlorite solution shall be allied
to the water main with a gasoline or electrically-pod chemical feed
pump, designed for feeding chlorine solutions. For smaller applications,
the solution may be prepared in a barrel, and then pumped into the
main with a hand pump, such as a hydraulic test pump. The dosage rate
shall be such that the chlorine concentration in the water in the
pipe is a minimum of 50 p.p.m. available chlorine. The following table
gives the amount of calcium hypochlorite and the quantity of 1% hypochlorite
solution required to produce a 50 p.p.m. chlorine concentration in
100 feet of pipe:
|
Calcium Hypochlorite and Chlorine Solution Required
to Produce 50 p.p.m. Concentration in 100 feet of Pipe
| |||||||
|---|---|---|---|---|---|---|---|
|
Pipe Size
|
Contents in a 100 foot Section
|
Amount of Calcium Hypochlorite
|
Chlorine Solution
| ||||
|
Inches
|
Cub. Ft.
|
Pounds
|
Gallons
|
Ounces
|
Pounds
|
Gallons
| |
|
6
|
19.60
|
1225
|
147
|
1 1/2
|
0.091
|
0.73
| |
|
8
|
34.90
|
2180
|
261
|
2 1/2
|
0.159
|
1.30
| |
|
10
|
54.55
|
3405
|
408
|
4
|
0.252
|
2.06
| |
|
12
|
78.55
|
4905
|
588
|
5 5/8
|
0.35
|
2.88
| |
|
16
|
139.60
|
8725
|
1044
|
10
|
0.621
|
5.22
| |
E.
Point of Application. The point of application of the chlorinating
agent shall be at the high end of the pipeline section, and through
a corporation stop inserted in the top of the new pipe. If the water
for the preparation of the chlorine solution is supplied from a tap
on the existing pipeline, there shall be a physical break between
the injector supply and the injector pump.
F.
Rate of application. The chlorine solution shall be pumped slowly
into the new pipeline. Chlorine application shall not cease until
the entire main is filled with the chlorine solution. If required
by the Engineer, the chlorine residual shall be measured at several
points along the section of main being tested to insure that the proper
dosage and distribution of the chlorine solution is obtained.
G.
Prevention of Reverse Flow. Great care shall be exercised in manipulating
valves, so that the strong chlorine solution in the line being treated
will not flow back into the adjoining water distribution system.
H.
Retention Period and Chlorine Concentration. The chlorinated water
shall be retained in the main for at least 24 hours, during which
time all valves and hydrants in the section treated shall be operated,
in order to disinfect the appurtenances. At the end of this twenty-four-hour
period, the treated water shall contain no less than 25 p.p.m. chlorine
throughout the length of the main. Should the initial procedure fail
to result in the conditions specified, the chlorination procedure
shall be repeated until such results are obtained, at the contractor's
expense.
I.
Point
of Discharge. The contractor shall discharge the disinfecting solution
from the mains through available outlets, or through taps in the main.
The contractor shall exercise all due precautions in discharging the
chlorine bearing water; since it is extremely toxic and, if allowed
to flow into streams, can readily destroy aquatic life. If any damage
to property or fish life occurs due to the disposal of the disinfecting
solution, the cost of the damage shall be paid by the contractor.
If the possibility of damage to aquatic life is such, in the opinion
of the Engineer, that special precautions are required, the contractor
shall dechlorinate the disinfecting solution before it goes to waste.
The chlorine solution may be neutralized by applying sodium thiosulfate
in the ratio of two parts thiosulfate to one part chlorine at the
point of discharge. Contractor shall comply with Lancaster County
Soil Conservation District requirements.
J.
Final Flushing. Following chlorination, the heavily chlorinated water
shall be thoroughly flushed from the line at its extremities until
the replacement water throughout its length, upon test, be proven
comparable to the quality of water in the existing distribution system.
K.
Flushing Water. Water for flushing will be provided by the owner,
but at no time shall valves on the water distribution system be operated
without the presence of a duly qualified representative of the owner.
L.
Water for Testing. Water will be furnished by the owner for one hydrostatic
test and disinfection procedure. If pipelines must be retested and
disinfected, the cost for additional water will be borne by the contractor
at a cost rate determined by the owner.
4.
Disinfection of Water Main Connection. Since it may not be possible
to disinfect the pipe, valves and fittings installed at certain connections
in the manner specified above, the contractor shall proceed as follows:
A.
Installation of Connection. Every precaution shall be observed during
the installation of the connection to prevent foreign material and
trench water from entering the pipe, fittings, and valves during their
installation.
B.
Disinfection. The interior of all pipe, fittings and valves shall
be swabbed with a 5% hypochlorite solution. A 5% hypochlorite solution
can be obtained by mixing approximately three pounds of granulated
calcium hypochlorite with five gallons of water.
C.
Flushing. After the pipe, fittings, and valves have been swabbed,
they shall be thoroughly flushed with water.
5.
Disposal of Water.
A.
Again, the contractor is reminded that the chlorinated water must
be disposed of in a manner such that no damage occurs to fish life
of vegetation. If the Department of Environmental Protection has regulations
for waste water disposal, it shall be the contractor's responsibility
to follow the regulations to their end. Contractor shall comply with
all Lancaster County Soil Conservation District requirements.
[Ord. 752, 2/7/1994, § VI; as amended by Ord. 829,
11/15/2001]
1.
General.
A.
This section of the specifications covers the requirements for the
construction of railroad, stream, and highway crossings.
B.
All work shall be performed as specified herein, or as otherwise
required by the railroad company, the Pennsylvania Department of Environmental
Protection, PennDOT, or other agencies having jurisdiction.
2.
Materials.
A.
Water Main Pipe. All special crossings shall be constructed of ductile
iron pipe, having mechanical joint ends.
B.
Steel Casing Pipe. Steel easing pipe shall conform to § 612(16)
and shall be installed at the locations specified by the Borough.
Steel easing pipes shall be of the diameter and wall thickness approved
by the Borough. However, the contractor, at his own expense, may install
a larger diameter casing pipe than is specified, provided all necessary
clearances under railroad tracks, highways, pipelines, and other structures
are maintained. If the contractor elects to use a larger diameter
steel casing pipe, the wall thickness shall be increased accordingly,
as required by the Borough.
C.
Concrete. Concrete shall be as specified in § 612(22).
3.
Railroad Crossings.
A.
General. Railroad crossings shall be installed in accordance with
the requirements of Part 5, Pipelines, Specifications for Pipelines
for Conveying Flammable and Nonflammable Substances, published by
the American Railway Engineering Association and with any additional
or special requirements of the owner of the track. The applicant shall
pay all charges imposed by the railroad for the crossing installation,
including license agreement preparation fees and the cost of any personnel
and insurance required by the railroad company during the crossing
construction.
B.
Work on Railroad Right-of-Way.
(1)
The contractor shall inform himself of the terms and conditions
of the work on railroad right-of-way and shall bear the costs which
may arise therefrom. The contractor may not work on railroad property
until fully executed copy of the agreement between the railroad company
and the Borough has been on file for 30 days with the Public Utility
Commission, provided that the Commission has not instituted proceedings
affecting the validity of the agreement in that time. Work in the
railroad right-of-way shall conform to the agreement between the railroad
company and the Borough.
(2)
The contractor shall submit any plans of construction method
and proposed materials in accordance with railroad regulations. The
railroad company approval of plans and methods of doing the work will
not be considered a release from responsibility for damage to the
railroad company by the acts of the contractor or his employees.
(3)
All costs to the railroad for flagging and protective personnel,
engineering inspection, removal and replacement of tracks, repair
to railroad facilities damaged by the contractor's operations, and
other work shall be borne by the contractor or applicant.
4.
Stream Crossings.
A.
General. The Borough will obtain the necessary permits for stream
crossings from the Pennsylvania Department of Environmental Protection.
The contractor shall not perform any work in a stream channel, unless
he has been notified that the required permit has been issued and
informed himself of any special conditions. He shall not damage the
stream channel and stream banks, erode the stream banks, deposit excess
sediment in the stream, or otherwise harm the streams or the properties
along the streams.
5.
Highway Crossing.
A.
General. The Borough will submit PennDOT Form 945-A, Application
for Highway Occupancy Permit, for work on State highway right-of-way.
Contractor shall comply with PennDOT 459 regulations. The contractor
will pay all PennDOT fees in connection with the project.
B.
Work on State Highway Right-of-Way.
(1)
The contractor shall not start work on State highway right-of-way
until the Borough has received the "opening-of-highway" agreement
from PennDOT.
(2)
The contractor shall notify the District Engineer having jurisdiction
of the proposed date for starting work a minimum of two weeks prior
to that date. The work carried out on State highway right-of-way shall
be performed in accordance with the requirements set forth on Form
945-B, General Provisions and Specifications Regulating Occupancy
of State Highway Right-of-Way, and such other special requirements
as may be stipulated by PennDOT. Questions pertaining to work on State
highway right-of-way should be directed to the District Engineer having
jurisdiction. The work shall be done under the supervision of, and
to the satisfaction of, PennDOT.
