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Construction Sequencing and Methods

The contractor shall follow standard water main installation procedures and methods.
The contractor shall not shut down the plant water system at any time. The plant water is
used for process control, seal water and cooling of a gas generator. Only the City may
shut down the plant water provided adequate means are in place for continuing the
processes that need plant water.

The majority of the work specified can be accomplished without shutting down the plant
water system after the isolation valves are installed. It may be necessary to use pipe
freezing methods for some valves should the City determine that the isolation valve
cannot be shut off for reasons stated above.

The contractors should schedule pipe freezing techniques, if required,

Warranty

A standard one-year warranty shall be in effect. Should any leak occur during the one-
year period it shall be fixed immediately since plant water is being used. Immediately
means with 4-6 hours of when the leak occurs.

The one-year warranty period shall begin upon substantial completion. Substantial
completion means all valves, yard hydrants and gate valves have been installed and
pressurized to verify there are no leaks.

Should the contractor be unable to make the repair in a timely manner, the City reserves
the right to hire a contractor or Pennichuck Water Works emergency repair crew to
complete the repair. The contractor will pay for the costs of such a repair should it
happen within the one-year warranty period.

Should any trench settling occur the contractor will come back near the end of the one-
year warranty period and fill/recompact the trench unless specified otherwise by the City.
If the settling occurs in paved areas the contractor shall refill/recompact in a timely
manner depending on the severity of the settling.

CITY OF NASHUA NEW HAMPSHIRE
CITY ENGINEER'S OFFICE

9 RIVERSIDE STREET
NASHUA, NEW HAMPSHIRE 03062

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NASHUA, NEW HAMPSHKRE =

PLAN OF
WASTEWATER TREATMENT FACILITY
PLANT WATER SYSTEM
PROPOSED WORK

City of Nashua, New Hampshire
Division of Public Works

1FB1094-050817

Water Valve and Yard Hydrant

WATER VALVE and YARD HYDRANT INSTALLA THON

BID SCHEDULE

liem

Installation

EXHIBIT E

No. Quantity Units ltem Description Unit Price Total Price

| 21 nA Instull Yard Ulydrains and Apputenances $2,855.00 $59,955.00
™4 EA Install Yard Hydranis Valves Boxes and Misc
Fittings’Piping $1,280.00 $26,880.00

A 1 ALLOWANCE Pips Freezmy S200 0 $2, 000,00
4 z LA Install Sernch valve ane bow $2,705.00 $5,410.00
4 3 LA Tnstall G-ineh valve (live tup) and box $8,560.00 $25,680.00
ty 1 EA Install (O-inch valve Give tip) and box $14,455.00 $14,455.00
7 i BA Install 12-inch valve (live tap) and box $17,745.00 $17,745.00
8 2RO SP Canercty Sidewalk Replacement $12.50 $3,500.00
9 ROU SF Asphalt Replacement $7.25 $5,800.00
Ww 5 LA ‘Lest pit to verily existing pipe size $0.00 $0.00
VY ? BA Remove existing 2" Valves & Install 2" Ball Valve $250.00 $500.00

TOTAL BID PRICE FIGURES

BS -tof3

$179,925.00

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TOTAL BID PRICE WORDS - BASE BID

One Hundred Seventy Nine

Thousand Nine Hundred

Twenty Five
¥ Dallars and

Zero A cnts

BS-2o0f3

IFB1094-050847
Water Valve and Yard Hydrant
installation

William P Davis Excavation LLC

¢ aA | tee PAD ACs 1h

05/12/2017
_PO Box 758 - Hampton, NH 03843
603.944.5844

Will@WPDavisExcavation.com

IF B1G94-B50877

Water Valve and Yard Hydrant
installation

=) THE CITY OF NASHUA “The Gate City’

Financtal Services

Purchasing Department

June 1, 2017
Memo #17-127

TO: MAYOR DONCHESS
FINANCE COMMITTEE

SUBJECT: CONTRACT FOR WASTE WATER FACILITY HVAC UPGRADES (VALUE: $566,717)
DEPARTMENT: 169 WASTEWATER; FUND: WASTEWATER
ACTIVITY: AC & AIR HANDLING

Please see the attached communication from Noelle Osborne, Wastewater Department Operations
Supervisor, dated May 18, 2017 for the 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 Wastewater Department Operations Supervisor, Board of Public Works (5/18/2017 meeting) and the

Purchasing Department recommend approval of this contract award in the amount of $566,717 to
Monadnock Building Company of Jaffrey, NH.

Respecttull

GME

“ f Dan Kooken
Purchasing Manager

Cc: N Osborne L Fauteux

1229 Main Street * Nashua, New Hampshire 03061 « Phone (603) 589-3330 e Fax (603) 589-3233 |

To:

From:

Re:

F. Motion:

Attachments:

Discussion:

City of Nashua, Public Works Division

Board of Public Works Meeting Date: May 18, 2017

Noelle Osborne, Plant Operations Supervisor
Wastewater Department

Waste Water Facility HVAC Upgrades

To award the HVAC Upgrades contract in the amount of $896,956 to Monadnock
Building Company of Jaffrey, NH. Funding will be through: Department: 169 -
Wastewater; Fund: Wastewater; Activity: AC & Air Handling.

Monadnock Building Company Cost Proposals

The HVAC system at the Nashua Wastewater Treatment Facility was installed between
1972 and 1988. These are the original units and are in need of replacement due to age
and functionality. Some of the units are not working causing the plant to supplement heat
in the winter with electric heaters. These systems have exceeded their useful life.

The project was originally sent out to bid; however, due to the large amount of work in
the state, combined with the low number of qualified vendors, only 2 bids were received.
The low (base) bid was for $1,055,000, which was much higher than the consultant,
Wright Pierce, had estimated. After careful consideration, it was the recommendation of
the consultant that we reject both bids and negotiate costs directly with a separate vendor,
Monadnock Builders. Monadnock had expressed a great deal of interest in the project,
but in the end found themselves unable to bid due to the bond requirements.

By negotiating directly with Monadnock Builders the City can structure a contract with
them that will allow them to meet their bonding requirements, while the City receives a
more affordable project.

At the City’s request, Monadnock broke their costs into 4 proposals to allow for easier
tracking and payment of completed work.

Proposal 1 - RTU 1 & 2 $566,717
Proposal 2 — Girt Building modifications $73,718
Proposal 3 -RTU 2, SAHUI, split system for electric room $100,725

Proposal 4 — Boiler room, Control Bldg Offices, ceiling modif’s $155,796
Total: $896,956

References of Monadnock Builders were checked and found to be favorable for this
project.

Monaduock

COMMERCIAL
Building Co.

Serving the Commercial and Retail industry

ae

32 FITZGERALD DRIVE, UNIT #10 JAFFREY, NEW HAMPSHIRE 03452
PH. 603-878-0810 FAX 603-878-0809

LUMP SUM PROPOSAL #1

May 3, 2017 Page 1 of 3

City of Nashua

Central Purchasing

229 Main Street

Nashua, New Hampshire 03060

RE: Nashua Wastewater Treatment Facility HVAC Upgrades for RTU #1 & #2
2 Sawmill Road
Nashua, N.H. 03060

Attached please find the RTU #1 & #2 Lump Sum Proposal for the above referenced
project in accordance with plans by Wright Pierce Engineers dated “Issued For Bid
3/17”, Addenda 1&2, our site visits (3), subsequent conversations with the City of
Nashua Engineer Bill Keating and Bid Breakdown documentation and discussions with
Wright-Pierce Lead Project Engineer Andy Morrill. Should you have any questions, or
need further clarification, please feel free to contact me at your earliest convenience.

Page 2 of 3

General Conditions

Payment & Performance Bonding

Daily offloading, clean up & dumpsters for daily debris
Equipment, tooling, dust barriers & misc.

Project Management & Daily Supervision

Submittals

Project close out documentation

General Construction for RTU #1 & #2

Remove existing suspended metal panel ceilings, suspension system and lighting in
designated areas & dispose of

Furnish & install new 2’ x 2’ suspended acoustical ceiling system per plans &
specs

Modify openings in the full height block wall to accommodate new ductwork for
new RTU’s 1,2 & 3

Cut & patch as needed

Furnish & install steel @ new roof penetrations

Roofing

Cut new openings in roof deck

Patch deck as needed

Roof protection

Furnish & install wood nailers

Flash two curbs and pockets into existing rubber roof

Patch roof where existing air handling units and pockets are to be removed

Electrical

Demo & new power wiring, conduit and lighting per plans and specs

HVAC

Demo existing duct, air handler units & associated appurtenances
Furnish & install new equipment, temperature controls / conduit & wiring,
test & balance and hoisting / rigging