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3.2

C. Secure safety cable to pump carriage. Cable eyes with thimbles shall be
installed at both ends. Use three cable clamps at each connection.

D. Carefully install pump/carriage assembly, check valve, discharge piping,
pressure transmitter cable and electrical cable in each sideslope riser pipe in a
manner which prevents twisting. Assembly should be bundled together and
secured at 5-foot intervals with nylon ties. Tape shall not be allowed.

E. Fasten pressure transducer in stainless steel bracket on pump carriage.

F. Conductors shall be secured in a manner that prevents chafing of the insulation
or strain on electrical connections.

G. Verify pump is located at bottom of each sump using pre-measured marks on
the discharge pipe or safety cable or other approved method.

PERFORMANCE TESTING

A. If after operating the pumps the motor rotation is reversed, electrical

resistances are not within manufacturer’s limits, or pump performance is not
within limits specified by the manufacturer, CONTRACTOR shall correct the
deficiency and retest.

[END OF SECTION 11318]

P:\3000s\3066.09\Source Files\Type II App\Specifications\ Division 11 Specifications\11318 Pumps.docx

File No. 3066.09 Pumps 11318- 4 of 4 December 2017

CONTENTS

DIVISION 15 - MECHANICAL

Section 15210 - High Density Polyethylene Pipe, Fittings, and Appurtenances
Section 15212 - Polyvinyl Chloride (PVC) Pipe, Valves, and Fittings
Section 15310 - Sump Riser Building Pipe, Fittings, and Appurtenances

SANBORN i HEAD

SECTION 15210

HIGH-DENSITY POLYETHYLENE
PIPE, FITTINGS, AND APPURTENANCES

PART 1 - GENERAL
1.1 SCOPE OF WORK

A. Supply and install high-density polyethylene (HDPE) pipe, fittings, and
appurtenance for the leachate collection and conveyance systems.

1.2 SUBMITTALS

A. CONTRACTOR shall submit to ENGINEER the following:

1. Manufacturing data listing resin type, cell classification, stock density,
melt flow, flexural modulus, tensile strength, and coloration.

2. Pipe Dimensions:
a. Average outside diameter.
b. Average inside diameter.
c. Minimum and average wall thickness.
d. Approximate weight in pounds per foot.

3. Manufacturer’s instructions for fusing joints.

B. CONTRACTOR shall submit pipe welding certifications for pipe fusion machine
operators prior to beginning fusion operations.

1.3. MANUFACTURER'S QUALITY ASSURANCE

A. The pipe, fittings, and valve manufacturers shall have an established quality
assurance (QA) program responsible for inspecting incoming and outgoing
materials. At a minimum, incoming polyethylene (PE) materials shall be
inspected for density per ASTM D1505, melt flow rate per ASTM D1238, and
contamination. The supplier shall certify all incoming PE materials.

B. The pipe and fittings manufacturer shall have an established QA program
responsible for assuring the long-term performance of materials and products.
Representative samples of PE materials shall be tested against the physical
property requirements of this Specification. Each extrusion line and molding
machine shall be qualified to produce pressure rated products by taking
representative production samples and performing sustained pressure tests in
accordance with ASTM D1598.

File No. 3066.09 High-Density Polyethylene Pipe 15210 - 1 of 13 December 2017

C. QA testing for representative pipe and fitting samples shall include:

Test Standard Pipe Fittings
Ring ESCR ASTM F1248 Yes Not Applicable
Sustained pressure at ASTM D1598 Yes Yes
176°F / 725 psi hoop stress (f0>100 h) (f0>100 h)
Sustained pressure at 73°F | ASTM D1598 Yes Yes
/ 1600 psi hoop stress (f0>1,000 h) (f0>1,000 h)

D. All outgoing materials shall be inspected for diameter, wall thickness, length,
straightness, out-of-roundness, concentricity, toe-in, inside and outside surface
finish, markings, and end cut. Quality control (QC) shall perform tests of
density, melt flow rate, carbon content, and carbon dispersion. In addition,
samples of the pipe provided shall be tested for hoop tensile strength and
ductility by either quick burst per ASTM D1599 or ring tensile per ASTM
D2290. Molded fittings shall be subject to x-ray inspection for voids, and tests
for knit line strength. All fabricated fittings shall be inspected for fusion
quality and alignment.

E. The pipe and fitting manufacturer shall maintain permanent QC and QA
records.

F. If manufacturer’s test data is inadequate or unavailable, then OWNER reserves
right to reject or require additional tests to satisfy material requirements. The
cost of these tests shall be borne by CONTRACTOR.

G. Work shall comply with codes and standards of the Plastic Pipe Institute (PPI).

1.4 DELIVERY, STORAGE, AND HANDLING

A. The pipe and fitting manufacturer shall package products for shipment in a
manner suitable for safe transport by commercial carrier. When delivered, a
receiving inspection shall be performed by CONTRACTOR, and any shipping
damage reported to the pipe and fittings manufacturer. Pipe and fittings shall
be handled, installed, and tested in accordance with manufacturer’s
recommendations, and the requirements of this Section.

B. Pipe Storage
1, Store or stack pipe to prevent damage from marring, crushing or
puncture. Limit maximum stacking height to 6 feet or manufacturer's
recommended maximum height, whichever is less.
2. Store in accordance with manufacturer’s recommendations.

File No. 3066.09 High-Density Polyethylene Pipe 15210 - 2 of 13 December 2017

C. Pipe Handling

1. Protect pipe from excessive heat or harmful chemicals.
2. Handle pipe and use equipment needed to avoid gouging of the pipe

surfaces.

PART 2 - PRODUCTS

2.1

PHYSICAL PROPERTIES

A. Materials used for the manufacture of HDPE pipe and fittings shall meet the
following physical property requirements:

Property Unit Test Value
Procedure
Material Designation - PPI/ASTM PE 3408
Material Classification - ASTM D1248 IC 5 P34
Cell Classification - ASTM D3350 345464C
Density g/cm? ASTM D1505 >0.940
Melt Index g/10 min ASTM D1238 <0.15
Flexural Modulus psi ASTM D790 110,000 to <160,000
Tensile Strength at yield psi ASTM D638 3,000 to <3,500
Slow Crack Resistance hours ASTM F1473 >100
(PENT)
HDB psi ASTM D2837 1,600 @ 23°C
UV Stabilizer % Carbon Black | ASTM D1603 2 to 3
Elastic Modulus psi ASTM D638 110,000
Brittleness Temperature oF ASTM D746 <-180
Vicat Softening ot ASTM D1525 255
; Temperature
Thermal Expansion in/in/°F ASTM D696 1x 104
Hardness Shore D ASTM D2240 64

B. There shall be no evidence of splitting, cracking, or breaking when the pipe is

tested.

C. Ring Stiffness Constant (RSC) values for the pipe shall be 90 percent of the

nominal.

D. The pipe and fittings shall be homogenous throughout and free from visible
cracks, holes, foreign inclusions, or other injurious defects. The pipe shall be as
uniform as commercially practical in color, opacity, density, and other physical

properties.

File No. 3066.09

High-Density Polyethylene Pipe 15210 - 3 of 13

December 2017

30,

31.

32.

jurisdiction, or is found to be in violation of state statutes or regulations, the invalidity or
unenforceability of any particular provision of this contract shall not affect any other provision, the
contract shall be construed as if such invalid or unenforceable provisions were omitted, and the
parties may renegotiate the invalid or unenforceable provisions for sole purpose of rectifying the
invalidity or unenforceability.

MODIFICATION OF CONTRACT AND ENTIRE AGREEMENT This contract constitutes the entire
contract between the City of Nashua and Professional Engineer. The parties shall not be bound by
or be liable for any statement, representation, promise, inducement, or understanding of any kind
or nature not set forth in this contract. No changes, amendments, or modifications of any terms or
conditions of the contract shall be valid unless reduced to writing and signed by both parties.

CHOICE OF LAW AND VENUE This contract shall be governed exclusively by the laws of the State
of New Hampshire and any claim or action brought relating to this contract, the work performed or
contracted to be performed thereunder, or referable in anyway thereto shall be brought in
Hillsborough County (New Hampshire} Superior Court Southern Judicial District or in the New
Hampshire 9th Circuit Court—Nashua and not elsewhere.

TIME IS OF THE ESSENCE Time is expressly made of the essence with respect to this agreement
and the dates prescribed in it.

GC If of 11

E. Clean rework or recycled material generated by the manufacturer’s own
production may be used so long as the pipe or fittings produced meet all the
requirements of this Section.

2.2 PIPE AND FITTINGS

A. Dimensions

1. The nominal inside diameter of the pipe shall be true to the specified pipe
size in accordance with ASTM D2513. Standard laying lengths shall be 40
feet + 2 inches.

2. Fittings such as couplings, wyes, tees, adaptors, etc. for use in laying pipe
shall have standard dimensions that conform to ASTM D2513.

3. Pipe and fittings shall have the Standard Dimension Ratio (SDR) rating
indicated on the Drawings.

B. Pipe and fittings shall be produced by the same manufacturer from identical
materials meeting the requirements of this Section. Special or custom fittings
may be exempted from this requirement.

C. Pipe and fittings shall be pressure rated to meet the service pressure
requirements specified. Whether molded or fabricated, fittings shall be fully
pressure rated to at least the same service pressure rating as the joining pipe.

D. Molded fittings shall meet the requirements of ASTM D3261 and this
Specification. At the point of fusion, the outside diameter and minimum wall
thickness of fitting butt fusion outlets shall meet the diameter and wall
thickness specifications of the mating system pipe. Fitting markings shall
include a production code from which the location and date of manufacture
can be determined. Upon request, the manufacturer shall provide an
explanation of his production code.

E. Perforated pipe shall meet the same physical properties and requirements of
standard solid pipe. Hole spacing and orientation are presented on the
Drawing. Sections of perforated pipe shall be fused together with perforations
aligned between each section of pipe.

F. Marking
1. Each standard and random length of pipe and fitting in compliance with
this standard shall be clearly marked with the following information:
a. Manufacturer’s Name or Trademark;
b. ASTM Standard Designation;
c. Nominal Pipe Size;
d. Class & Profile Number;

File No. 3066.09 High-Density Polyethylene Pipe 15210 - 4 of 13 December 2017

e. Production Code, including Extrusion Date, and Lot or Batch
Number; and
f. SDR.

2.3 SOURCE QUALITY CONTROL

A. The pipe and fitting manufacturer shall certify that samples of his production
pipe have undergone stress regression testing, evaluation, and validation in
accordance with ASTM D2837 and PPI TR-3. Under these procedures, the
minimum hydrostatic design basis shall be certified by the pipe and fitting
manufacturer to be 1600 psi at 73.4°F and 800 psi at 140°F.

B. Material shall be listed in the name of the pipe and fitting manufacturer by the
Plastics Pipe Institute (PPI) in PPI TR-4 with the following Standard Grade

ratings:

73.4°F 140°F
Hydrostatic Design Basis (HDB) 1600 psi 800 psi
Hydrostatic Design Stress (HDS) 800 psi 400 psi

C. PPI material listing in the name of the resin supplier is not acceptable in
meeting this requirement.

D. As the basis of the acceptance of the material, the manufacturer will furnish a
certificate of conformance of these Specifications upon request. When prior
agreement is being made in writing between the purchaser and the
manufacturer, the manufacturer will furnish other conformance certification in
the form of affidavit of conformance, test results, or copies of test reports.

E. Physical Test Requirements

1. Sampling: The selection of the sample of pipe shall be as agreed upon by
the purchaser and the manufacturer. In case of no prior agreement, any
sample selected by the manufacturer shall be deemed adequate.

2. Sample size for flattening test will be one sample per size and class of
pipe per project.

3. Conditioning: Conditioning of samples prior to and during test shall be as
agreed upon by the purchaser and manufacturer. In case of no prior
agreement, the conditioning procedure used by the manufacturer shall be
deemed adequate.

F. Test Methods (to be completed by Manufacturer)

1. Flattening: Three specimens of pipe, a minimum of 12 inches long, shall
be flattened between parallel plates in a suitable press until the distance
between the plates is 40 percent of the outside diameter of the pipe. The
rate of loading shall be uniform and such that the compression is

File No. 3066.09 High-Density Polyethylene Pipe 15210 - 5 of 13 December 2017

completed within 2 to 5 minutes. Remove the load, and examine the
specimens for splitting cracking or breaking.

2. Pipe Ring Stiffness Constant: The pipe ring stiffness constant shall be
determined using procedures similar to those outlined in ASTM D2412.
The stiffness of HDPE pipe is defined in terms of the load, applied
between parallel plates, which causes 1 percent reduction of pipe
diameter. Test specimens shall be a minimum of two pipe diameters or 4
feet in length, whichever is less.

2.4 GASKETS AND HARDWARE

A. All gaskets shall be %-inch thick, full face Viton with a Shore A durometer
rating between 60 and 80.

B. Joint hardware shall be Type 304 stainless steel.
2.5 FITTINGS

A. Fittings shall be manufactured from polyethylene compound having cell
classification equal to or exceeding compound used in pipe to ensure
compatibility of polyethylene resins.

B. Provide factory-fabricated, dual containment fittings except as indicated
below.

C. Fittings shall be from same manufacturer as pipe being provided. OWNER may
allow substitution for approved material with use of flanged joint sections.

D. Dimensions of fittings conforming to standard dimensions and tolerances in
accordance with ASTM F2206.

E. Fittings shall have the same or higher pressure rating as pipe.

F. Markings
1. Manufacturer’s name or trademark
2 Nominal size
3. Type of plastic pipe (i.e., PE 3408)
4. Standard dimension ratio
5 Extrusion date, lot number or batch number

G. The Drawings do not show all fittings that may be required. CONTRACTOR to
provide all fittings required for a complete installation.

File No. 3066.09 High-Density Polyethylene Pipe 15210 - 6 of 13 December 2017

PART 3 - EXECUTION

3.1 FIELD QUALITY CONTROL

A. Pipe may be rejected for failure to conform to any of the following:

1.

We WN

Fractures or cracks passing through pipe wall, except single crack not
exceeding 2 inches in length at either end of pipe which could be cut off
and discarded. Pipes within one shipment shall be rejected if defects
exist in more than 5 percent of shipment or delivery.

Cracks sufficient to impair strength, durability or serviceability of pipe.
Defects indicating improper proportioning, mixing, and molding.
Damaged ends, where such damage prevents making satisfactory joint.
Damage due to handling or installation. Scratches and gouges exceeding
five (5) percent of the wall thickness shall be considered excessive, and
may be rejected by OWNER or the CQA Consultant.

B. Acceptance of fittings, stubs or other specifically fabricated pipe sections shall
be based on visual inspection at job site and documentation of conformance to
this Section.

C. Prior to backfilling, CONTRACTOR shall obtain as-built survey
information (location and elevation) for the installed pipe at 50-foot
intervals, any changes in grade, and the location of all installed fittings.

3.2 INSTALLATION

A. — Trench, backfill, and compact in accordance with Specification Section 02200.

B. Heat Fusion of Pipe

1.

2.

Weld in accordance with manufacturer’s recommendation for butt fusion
methods. The pipe manufacturer shall certify fusion operators.

Butt fusion equipment for joining procedures shall be capable of meeting
conditions recommended by pipe manufacturer including, but not limited
to, temperature requirements, alignment, and fusion pressures.

For cleaning pipe ends, solutions such as detergents and solvents, when
required, shall be used in accordance with manufacturer's
recommendations.

Do not bend pipe to greater degree than minimum radius recommended
by manufacturer for type and grade.

Do not subject pipe to strains that will overstress or buckle piping or
impose excessive stress on joints.

Branch saddle fusions shall be joined in accordance with manufacturer's
recommendations and procedures. Branch saddle fusion equipment shall
be of a size to facilitate saddle fusion within the trench.

File No. 3066.09

High-Density Polyethylene Pipe 15210 - 7 of 13 December 2017