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early strength, hand-applied cementitious materials for stopping infiltrating water and
making repairs to concrete, brick, or other masonry-constructed manholes. The materials
shall be non-shrinking, nonmetallic, and non-corrosive. The materials shall be
compatible with the lining material used. Infiltration control and patching materials shall
be as manufactured by The Strong Company, Inc., Raven Lining Systems, Madewell
Products Corporation, Quadex, Inc., or Engineer-approved equal.

D. Epoxy coating shall be high-build, shall be 100 percent solids, and shall contain no
volatile organic compounds. Coating shall be suitable for use as a trowel-applied or
spray-applied monolithic surfacing at the minimum dry film thickness specified herein.
Epoxy coating shall be Raven 405 by Raven Lining Systems, Mainstay DS-5 by
Madewell Products Corporation, SprayWall by Sprayroq, S-301 Epoxy Spray System by
Warren Environmental, Inc., or Engineer-approved equal. Epoxy coating shall meet the
following requirements at a minimum:

1. Shore D Hardness: 85 (per ASTM D2240)

2. Compressive Strength: 12,000 psi (per ASTM D695)
3. Tensile Strength: 6,800 psi (per ASTM D638)

4. Flexural Strength: 11,000 psi (per ASTM D790)

5. Minimum Finished Dry Thickness: 125 mils

6. Adhesion to Concrete: Substrate failure (per ASTM D7234)

E. Cementitious base coat shall be a pumpable, Portland-based microsilica cement or
calcium aluminate cement. If the epoxy coating manufacturer also manufactures a
cementitious base coat, the cementitious base coat product shall be by the same
manufacturer as the epoxy top coat product. If the epoxy coating manufacturer does not
manufacture a cementitious base coat, the cementitious base coat product shall be
compatible with the epoxy top coat product. Contractor shall ensure compatibility
between the top coat product and cementitious base coat product. Cementitious base coat
shall be Raven 705CA by Raven Lining Systems, Mainstay ML-72 by Madewell
Products Corporation, or Engineer-approved equal. Cementitious base coat, when cured,
shall meet the following requirements at 28 days at a minimum:

1. Compressive Strength: 9,200 psi (per ASTM C109)
2. Tensile Strength: 685 psi (per ASTM C496)

3. Flexural Strength: 1,200 psi (per ASTM C293)

2019 CIPP Lining Project Manhole Rehabilitation
Nashua, NH 02800-6

4. Finished Dry Thickness: See Article 3.04, Paragraph H herein

5. Bond Strength: 2,000 psi (per ASTM C882)

PART 3 - EXECUTION
3.01 GENERAL:

A. Contractor shall accurately field-measure and size the rehabilitation products for each
individual manhole. Each existing sewer manhole to be rehabilitated may have a
different configuration and varying field dimensions. All field measurements shall
conform to the requirements of the manufacturers of the rehabilitation products.

3.02 INTERNAL LINER SYSTEM:

A. All loose and protruding mortar, bricks, manhole steps, roots, and anything else that
might prevent proper application of the liner shall be removed prior to application.
Manhole steps and protruding pipe shall not be replaced after installation of the liner.

B. High pressure water shall be used during surface preparation to produce a clean, abraded,
and sound surface with no evidence of laitance, loose material, or other contaminants.
Surface shall have a suitable profile for application of liner in accordance with the
manufacturer’s requirements.

C. All areas to be lined shall be dry, clean, and free of dust, dirt, sand, and other
contaminants as recommended by the manufacturer prior to installation. A torch or heat
lamp may be required to ensure a dry surface.

D. Any spray equipment used for application shall be specifically designed to accurately
ratio and apply the liner system. Liner system shall be installed in strict accordance with
the manufacturer’s installation instructions over the entire interior of the manhole and 2
inches up onto the frame and 6 inches down onto the bench.

F. Epoxy coating, if ordered by the Engineer, shall be installed in strict accordance with the
manufacturer’s installation instructions, including those for materials handling, primers,
mixing, environmental controls, working time, working temperature, pot life, allowable
time between coats (recoat time), safety, and spray equipment. Installation of epoxy
coating over cementitious base coat shall not occur until the cementitious base coat has
cured to the extent and time required by the manufacturer. A permanent identification

2019 CIPP Lining Project Manhole Rehabilitation
Nashua, NH 02800-7

3.03

3.04

and date of work performed shall be affixed to the structure in a readily-visible location,
and a final written report shall be provided to Owner and Engineer detailing the location,
date of report, and description of liner installation.

Cementitious coating shall be installed in strict accordance with the manufacturer’s
installation instructions, including those for materials handling, on-site mixing,
environmental controls, working time, working temperature, safety, and spray equipment.
Water shall only be added to the materials during the mixing process and prior to material
pumping or spray application; water shall not be added at the nozzle. Cementitious base
coat shall only be installed via low-pressure application. The cured base coat surface shall
be troweled smooth and continuous with proper sealing connections to all unsurfaced areas.
The total thickness of the cementitious base coat shall be in accordance with the epoxy
lining manufacturer’s recommendations and the following minimum requirements:

1. For all brick manholes and for block or cast concrete manholes in poor
condition with notable loss of surface material or exposed reinforcing, apply to a
minimum thickness of 1 inch.

2. For block or cast concrete manholes in fair condition, apply to a minimum
thickness of 0.5 inch.

3. For block or cast concrete manholes in good condition with no loss of
surface material, it may be acceptable to apply the epoxy top coat directly to the
manhole surface without applying a cementitious base coat if the Contractor
confirms that the existing manhole surface meets the requirements of the epoxy
top coat manufacturer.

MANHOLE INVERT RECONSTRUCTION:

Where ordered by the Engineer, manhole channels, inverts and benches shall be
constructed of brick. Invert construction shall comply with the City of Nashua
requirements found in the Standard Specifications for Sewers and Drains available at the
City Engineering Department or on line at www.NashuaNH.gov under Public Works
Department, then Engineering Department, and the Standard Sewer Details on the plans.
All debris shall be decanted and disposed of at the City landfill.

SEWER MANHOLE INSIDE DROP ASSEMBLY:

Drop pipe and bowl shall be connected to the pipe(s) entering a manhole using
manufactured couplings or fittings.

2019 CIPP Lining Project Manhole Rehabilitation
Nashua, NH 02800-8

10.

performance of work terminated, abandoned, or suspended under the notice, assign to
the City of Nashua any orders or sub contracts specified in the notice, and revoke
agreements specified in the notice.

5. Not resume work after the effective date of a notice of termination unless and until receipt
of a written notice from the City of Nashua to resume performance.

In the event of a termination for cause, Professional Engineer shall receive all amounts due and not
previously paid to Professional Engineer for work satisfactorily completed in accordance with the
contract prior to the date of the notice, less all previous payments. No amount shall be allowed or
paid for anticipated profit on unperformed services or other unperformed work. Any such payment
may be adjusted to the extent of any additional costs occasioned to the City ofi Nashua by reasons
of Professional Engineer's failure. Professional Engineer shall not be relieved of liability to the City
of Nashua for damages sustained from the failure, and the City of Nashua may withhold any
payment to the Professional Engineer until such time as the exact amount of damages due to the
City of Nashua is determined. All claims for payment by the Professional Engineer must be
submitted to the City of Nashua within 30 days of the effective date of the notice of termination.

If after termination for the failure of Professional Engineer to adhere to any of the terms and
conditions of the contract or for failure to satisfactorily, in the sole opinion of the City of Nashua,
to complete or make sufficient progress on the work in a timely and professional manner, it is
determined that Professional Engineer had not so failed, the termination shall be deemed to have
been a termination at will. In that event, the City of Nashua shall, if necessary, make an adjustment
in the compensation paid to Professional Engineer such that Professional Engineer receives total
compensation in the same amount as it would have received in the event of a termination-at-will.

C. GENERAL PROVISIONS FOR TERMINATION Upon termination of the contract, the City of
Nashua may take over the work and prosecute it to completion by agreement with another party or
otherwise. In the event Professional Engineer shall cease conducting business, the City of Nashua
shall have the right to solicit applications for employment from any employee of the Professional
Engineer assigned to the performance of the contract.

Neither party shall be considered in default of the performance of its obligations hereunder to the
extent that performance of such obligations is prevented or delayed by any cause, existing or future,
which is beyond the reasonable control of such party. Delays arising from the actions or inactions
of one or more of Professional Engineer's principals, officers, employees, agents, subcontractors,
consultants, vendors, or suppliers are expressly recognized to be within Professional Engineer's
control.

DISPUTE RESOLLTION The parties shall attempt to resolve any dispute related to this contract as
follows. Either party shall provide to the other party, in writing and with full documentation to
verify and substantiate its decision, its stated position concerning the dispute. No dispute shall be
considered submitted and no dispute shall be valid under this provision unless and until the
submitting party has delivered the written statement of its position and full documentation to the
other party. The parties shall then attempt to resolve the dispute through good faith efforts and
negotiation between the City of Nashua Representative and a Professional Engineer Representative.
At all times, Professional Engineer shall carry on the work under this contract and maintain and
complete work in accordance with the requirements of the contract or determination or direction of
the City of Nashua. If the parties are unable to resolve their dispute as described above within 30
days, the parties’ reserve the right to pursue any available legal and/or equitable remedies for any
breaches of this contract except as that right may be limited by the terms of this contract.

NO DAMAGES FOR DELAY Apart from a written extension of time, no payment, compensation, or

adjustment of any kind shall be made to Professional Engineer for damages because of hindrances
or delays in the progress of the work from any cause, and Professional Engineer agrees to accept

GC Sof 11

3.05

Schedule 40 PVC pipe shall be connected using industry-grade solvent cement.

Drop pipe shall be secured to the inside of manhole using steel straps or struts. Straps
shall have a minimum width of 1/2 inch and a minimum thickness of 0.03 inch.

Tee and bottom elbow shall be firmly secured by stainless steel straps. Intermediate
straps shall be spaced at a minimum of 5 feet. Straps shall be epoxy-anchored to manhole
using 1/4-inch anchors (two per strap). Anchor shall be embedded into mortar a
minimum of 3 inches. Bottom elbow shall be seated on bench for support.

If a manufactured drop bowl product is used, drop assembly shall be sized and installed in
strict accordance with the manufacturer’s installation instructions and guidelines.

INSPECTION, TESTING, AND ACCEPTANCE:

If any defects are observed, products shall be repaired or replaced at no cost to the Owner
using a method acceptable to the Engineer.

Vacuum testing in accordance with ASTM C1244 shall be required on one randomly-
selected manhole for each group of five manholes rehabilitated with internal liners.
Contractor shall perform vacuum testing with appropriate test equipment in the presence
of an inspector. Any manholes failing this test shall be reworked as necessary and
retested at no additional cost to the Owner. All verification and vacuum testing shall be
at no cost to the Owner and shall be paid for by the Contractor.

Holiday detection testing in accordance with ASTM D4787 shall be required on one
randomly-selected manhole for each group of five manholes rehabilitated with internal
chimney seals or liners. Contractor shall perform holiday detection testing in the
presence of an inspector with test equipment appropriate for the product. All detected
holidays shall be marked and repaired by abrading the coating surface with grit disk paper
or another hand-tooling method. After abrading and cleaning, additional coating shall be
hand-applied to the repair area as needed. All touch-up/repair procedures shall be in
accordance with the coating manufacturer's recommendations. All verification and
holiday detection testing shall be at no cost to the Owner and shall be paid for by the
manufacturer or the Contractor.

Adhesion (Pull-off) testing shall be required on one randomly-selected chimney seal for
each group of ten manholes rehabilitated with internal chimney seals or liners. A portable
pull-off adhesion tester shall be used to achieve substrate failure. Any chimney seals or
liners failing this test shall be reworked as necessary and retested at no additional cost to
the Owner.

2019 CIPP Lining Project Manhole Rehabilitation
Nashua, NH 02800-9

E. Inside drop bowl assemblies; and reconstructed channels, inverts, and benches shall pass
a visual inspection for voids, pinholes, cracks, leakage, and any other defect.

END OF SECTION

2019 CIPP Lining Project Manhole Rehabilitation
Nashua, NH 02800-10

)) THE CITY OF NASHUA “The Gate City’

Financial Services

Purchasing Department

February 28, 2019
Memo #19-126

TO: MAYOR DONCHESS
FINANCE COMMITTEE

SUBJECT: 2019 SEWER REPLACEMENT CONSTRUCTION (VALUE: $1,001 ,888)
DEPARTMENT: 169 WASTEWATER; FUND: BOND

Please see the attached communication from Stephen Dookran, P.E., City Engineer, dated February 28,
2019 for information related to this purchase.

Pursuant to § 5-78 Major purchases (greater than $10,000) A. All supplies and contractual services,
except as otherwise provided herein, when the estimated cost thereof shall exceed $10,000 shall be
purchased by formal, written contract from the lowest responsible bidder, after due notice inviting bids.

The City Engineer, Board of Public Works (February 28, 2019 meeting) and the Purchasing Department
recommend the award of this contract in an amount of $1,001,888 to N. Granese & Sons, Inc. of Salem,
MA.

nS spectivly,, 7
VDan Kooken
Purchasing Manager

Ce: S Dookran L Fauteux

229 Main Street ¢ Nashua, New Hampshire 03061 © Phone (603) 589-3330 « Fax (603) 589-3233 |

i

To:

From:

Re:

G. Motion:

Discussion:

City of Nashua, Public Works Division

Board of Public Works Meeting Date: February 28, 2019

Stephen Dookran, P.E., City Engineer
Engineering Department

2019 Sewer Replacement
Construction

To approve the award of the construction contract for the 2019 Sewer Rehabilitation
Project to N. Granese & Sons, Inc. of Salem, MA in the amount of $1,001,888. Funding
will be through: Department: 169 Wastewater; Fund: Bond; Activity: Sewer Rehab.

The annual sewer program addresses failing, aged sewers and associated structures and
piping. This 2019 Sewer Rehabilitation project is expected to replace approximately
1,305 linear feet of sewer mains along with connecting drainage basins and pipes. The
streets included in this contract are:

® Ash Street (35 Ash St to Central St)
e C Street
@ Charles Street (Auburn St to Franklin St)

Some of the locations will require the commitment of the utility companies for timely
construction.

Seven contractors attended the mandatory pre-bid meeting on January 30". Three bids
were received on February 14" as follows:

N. Granese & Sons, Inc. of Salem, MA $1,001,888.00
Defelice Corporation of Dracut, MA $1,097,810.00
Albanese D&S, Inc. of Dracut, MA $1,247,400.00

The low bid was reviewed and found to be acceptable. N. Granese & Sons, Inc. has
performed satisfactorily on other sewer projects with other public works entities in New
Hampshire from review of previous projects and references. Work is expected to start
as early as April to address significant pipe issues.

2019 Sewer Replacement Project

Construction Specifications
and
Contract Documents

Prepared By:

Hayner/Swanson, Inc.
3 Congress Street
Nashua, NH 03062
Tel: (603) 883-2057

Prepared For:

City of Nashua, New Hampshire
Division of Public Works
Engineering Department

January 2019

TABLE OF CONTENTS

DIVISION
1. INVITATION FOR BID 0.00... ceseessessesssessecessssesceesocseseceeesesceesseeensaes
2. INSTRUCTION FOR BIDDERS 00.00... ceeeeseeeceeeesceneeeeceeeseseseeeeeeees
3. BID FORM, BID BOND, BID SCHEDULE, AND CONTRACTOR’S
QUALIFBICATIONS 0.0... ccccsccsccsccsseneceesetecscecesesceceessesesesscseeeeeeseensenenees
4. PERFORMANCE AND PAYMENT BONDS .....000o. ccc ccssccssesseseeeeeeeees
5. AGREEMENT ...0.. ccc ccssscccsscesseessseesecsensssseesseeeceneeenesesseeatseesesssesseesensses
6 GENERAL CONDITIONS 0... ee ceecesesseceseseseeseeeesesescseeeesesceeeseeceessenees
7 SUPPLEMENTARY CONDITIONS... eeceseseseeeeeceneseeeeeeseseeeeeesenes

8. EXHIBITS

A. Notice of Award

B. Notice to Proceed

C. Change Order

D. Certificate of Substantial Completion

9. CONSTRUCTION SPECIFICATIONS

TC -10f 1