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Mechanical Room Painting

Scope; The below price is the cost incurred to paint Mechanical room, including power washing ceilings, walls, flaor and filing unused holes with mortar.

4-SUPPLEMENTAL COSTS
DESCRIPTION ary RATE UNIT SUBTOTAL
IASBUILT DRAWINGS
AR
SUBTOTAL $0.00
5-BURDEN
CATEGORY RATE
BURDEN RATE 34.00% $1,086.50
6-GG WORK TOTAL
SUBTOTAL (Item 4#2+3+4) $4,735.10
7-SUBCONTRACTORS WORK
SUBCONTRACTOR UNIT COST ary cost TOTAL
Cole
SUBTOTAL $10,875.00
3-FEE
GC (15% X lems 185 + 10% X items 28384 + 5% X item 7) $1,231.37
3-SUBTOTAL $16,841.47
BOND (1% X Hema} $168.41
GENERAL LIABILITY (1% X item 8) $168.41
9-TOTAL (Item 8 + Bond + General Liability) $17,178.30

Page 30f 3

9/10/2015 + 8:09 AM

ARTHUR COLE PAINTING CORPORATION

Contract Painting

www.colepainting.com se vallcoverines
Millwork Finishing
Maintenance Programs
September 10, 2019
To: . Methuen Construction Coo 0
Attn: “> Don Hutchinson eae
oe - Superintendent |. .¢2 8. oo
Job: 0S _- Water Treatment facility areneten
oe ~ Mechanical Room 9:
- 2Sawmill Rd.
© Nashua, NH oo
Documents: On site estimate .
Scope
interior: ® Power wash Concrete Ceilings & CMU walls
Walls ° Paint Ceilings with 1 Coat primer and 2 Coats finish paint.
Ceilings © Paint Walls with 2 Coats Pro Industrial Acrylic Coating.
Floor e Concrete Floor and Pads to be thoroughly cleaned using Spiral
tip High pressure wash and detergent.
e Concrete Floor and pads to receive 2 Coats of Armorseal 1000
HS industrial Catalized Epoxy. Top Coat to be applied after
machinery has been installed.
® All Riser area @ pads shall be striped with Safety yellow paint
Note Please see the attached Product data Sheets recommended.
Total Labor | $7,865.00
Total Material | $3,010.00
Bob Cote
Estimator

Arthur Cole Painting Corporation

P.O. Box 16583 « Worcester, MA 01601 ° Phone: 508.799.9019 © Fax: 508.797.4049

, THE CITY OF NASHUA “the Gate City

Administrative Services

Purchasing Department

September 26, 2019
Memo #20-038

TO: MAYOR DONCHESS
FINANCE COMMITTEE

SUBJECT: CONTRACT FOR GAS TANK DIAPHRAGM UPGRADE (VALUE $311,507)
DEPARTMENT: 169 WASTEWATER; FUND: WASTEWATER

Please see the attached communications from David Boucher, Superintendent Wastewater Department

dated September 26, 2019 for the information related to this change order.

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 Superintendent Wastewater Depariment, Board of Public Works (September 26,2019 BPW meeting)
and Purchasing recommend the award of this contract in the amount of $311,507 to Methuen
Construction Company of Plaistow, NH.

Respectfully

th: Ce

an Kdoken
Purchasing Manager

Cc: D Boucher i Fautuex

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

To:

From:

Re:

B. Motion:

Discussion:

City of Nashua, Public Works Division
Board of Public Works Meeting Date: September 26, 2019

David L. Boucher, Superintendent
Wastewater Department

Gas Tank Diaphragm Upgrade

To approve the contract for the digester gas holding tank upgrade project with Methuen
Construction Company of Plaistow, NH in an amount not to exceed $311,507. Funding
will be through: Department: 169- Wastewater; Fund: Wastewater; Activity: Digester
Gas Holding Tank Upgrade Project.

Digester gas from anaerobic digester is stored in 35-foot high, 25-foot diameter gas tank.
The anaerobic digester, gas tank and related facilities were constructed in 2000. The gas
tank has had no upgrades since being installed. The gas tank is an entire steel structure
with an inner flexible diaphragm where the gas is stored. The internal diaphragm had
failed with a visible split in a seam. Due to age of diaphragm and other upgrades needed,
anew project for replacing the diaphragm is needed.

In addition to replacing the diaphragm, the upper attachment ring will be reworked such
that the diaphragm can be detached from the air side of the tank. Currently the piston has
to be raised to detach the diaphragm from the gas side of the tank making that task
difficult. The wire cables that attach the piston to external counter weight plates are
rusted and will be replaced.

The project was out to bid on August 15, 2019 with a bid opening on September 6, 2019,
Two bids were received:

NEESCO - $399,750
Methuen Construction - $311,507

Methuen Construction has done several major projects at the NWTF including the Wet
Weather Facility, Primary Tanks Upgrade and the Energy Recovery Upgrade projects.

Their projects were done satisfactorily and have the manpower and experience for this

project.

BID FORM

Attach additional supporting documents as appropriate

Bidder: Methuen Construction Company, Inc.

Address: 144 Main Street, PO Box 980, Plaistow, NH 03865

Phone: 803-328-2222 E-mail. 2stimating@methuenconstruction.com

Provide written and numeric values for each item. The bidder agrees to perform the specified
work for the following prices:

1. The bidder agrees to perform all the of the work to install a new tank diaphragm
according to the project scope/specifications/measurement and payment section
as described above for the sum of:

($_ 225,757 )

Two Hundred Twenty-Five Thousand, Seven Hundred Fifty-Seven Dollars

2. The bidder agrees to purchase a new tank diaphragm according to the project
scope/specifications/measurement and payment sections as described above for
the sum of:

S 55,750 )

Fifty-Five Thousand, Seven Hundred Fifty Dollars

3. Coating Allowance - the bidder agrees to provide metal coatings according to
the project scope/specifications/measurement and payment sections a described
above for an allowance of:

Thirty Thousand ($_ 30,000 )

¢ Supplemental Information: Provide a list of recently completed projects related to
digester or biogas related projects for gas tank upgrades or new installation. Include

project name, costs, dates, and contact information of owner. Contractor must have
prior experience similar to this project or provide experience that clearly
demonstrated qualifications for such work.

See attached.

Signature: Ny od Ae )
Wayné Sypfongis, crete oe Fe President

ATTACHMENT — PROJECTS EXPERIENCE

METHUEN CONSTRUCTION COMPANY, INC,

ORIGINAL AND

FINAL
CONTRACT START AND
PROJECT NAME & PROJECT AMOUNT AND END DATES
LOCATION OWNER PROJECT DESCRIPTION AND SPECIFIC SCOPE EXPLANATION {MIDIVYYYY)
Graf Road Pump City of Newburyport, MA Work included, but was not limited to, the replacement of the Graf Original Amount: 06/46/2017
Station Replacement 60 Pleasant Street Road Pump Station, this included the demolition and disposal of the $4,928,151
Newburyport, MA 01950 existing pump station, a new pump station including pumping 05/23/2019
Newburyport, MA equipment with three new submersible pumps, a new building,
Anthony Furnari control systems, alarm monitoring and transmission systems, flow Final Amount:
978-465-4454 monitoring, emergency engine/generator and all related civil, $5,100,339
architectural, structural, HVAC, plumbing, electrical and
instrumentation control work, yard piping and site work.
Liquid Oxygen City of Worcester The project consisted of providing liquid oxygen storage and feed Original Amount: 02/27/2018
System Water 445 Main Street equipment, including all items as required for a complete system at $1,006,998
Filtration Plant Worcester, MA 01608 the project site, 06/28/2019
Final Amount:
Worcester, MA Darin LaFalam $1,081,695
508-799-1047
Primary Clarifier and City of Manchester, NH The project consisted of the construction of improvements to the Original Amount: 10/12/2016
Gravity Thickener 300 Winston Street existing Primary Clarifiers, Gravity Thickeners, HVAC System, $7 646,529
Upgrade Manchester, NH 03103 Sludge and Scum 03/19/2019
Final Amount:
Manchester, NH Fred McNeill $7,627 620

603-324-6341

ORIGINAL AND

FINAL :
CONTRACT START AND
PROJECT NAME & PROJECT AMOUNT AND END DATES
LOCATION OWNER PROJECT DESCRIPTION AND SPECIFIC SCOPE EXPLANATION (MIDIYYYY)
WPCF Secondary City of Chicopee Work consisted of, but was not limited to, both clarifier tank and Original Amount: 10/26/2016
Clarifier Upgrade, 80 Median Street mechanism/process related work, Concrete tanks were $1,386,890
Contract 7 Chicopee, MA 01085 rehabilitated, leaks through clarifier walls were sealed and cracks 03/19/2019
repaired in the concrete, Repair work included the demolition and Final Amount:
Chicopee, MA Quinn Lonezak replacement of the existing tank pressure relief/check valves and $1,324,529
413-594-3585 the removal and replacement of the grout wear surface. The
existing clarifier mechanisms, weirs, baffles and supports in the
clarifiers were demolished and replaced. The entire sludge removal
mechanism was replaced including the mechanical drive units, the
draft tubes, corner sweeps and walkways.
South Essex South Essex Sanitary District | The project consisted of the construction of upgrades to the Original Amount: 11/20/2017
Sewerage District, PO Box 989 treatment plant including replacement of oxygen reactor impellers, $1,625,801
Oxygen Mixer Salem, MA 01870 installation of a drain and site drainage improvements. 07/10/2019
Final Amount:
Salem, MA Alan Taubert $1,770,425
978-774-4550
Odor Control City af Newburyport, MA Work included the installation of: 1) a new 20,000 cubic feet per Original Amount: 04/28/2017
Improvements 60 Pleasant Street minute biofilter comprised of engineered media housed in a new $4,163,576
Newburyport, MA 07950 cast-in-place vessel, 2) exterior odor control ductwork: 316 spiral 02/28/2018
Newburyport, MA stainless steel above ground and DR15 PCV generally below
Anthony Furnari ground, galvanized support columns and beams; connections to Final Amount:
978-465-4464 existing odor control system and exterior booster fans, 3) supply air $4,200,508

systems including two new make-up air units and interior ductwork,
4) two primary clarifier flat aluminum covers, new stair, lighting,
electrical wiring, and duct work, 5) new septage receiving statin
within inline sewage grinder, rock basket, and 6) demolition of the
existing biofilter, irrigation piping, buried structures, concrete pads,
concrete barriers, ductwork, and electrical components.

ORIGINAL AND

FINAL :
CONTRACT START AND
PROJECT NAME & PROJECT AMOUNT AND END DATES
LOCATION OWNER PROJECT DESCRIPTION AND SPECIFIC SCOPE EXPLANATION {MIDIVYYY)
Long Pond Treatment Town of Falmouth, MA Wark consisted of the construction of a new 8.4 million gallon per Original Amount: 4/15/2015
Plant Construction 416 Grifford Street day (mgd) water treatment plant at the existing Long Pond surface $40,925,150
Falmouth, MA 02540 water supply location in Falmouth, MA. The plant utilizes 6/15/2017
Falmouth, MA coagulation, mixing flocculation, dissolved air flotation, dual media
Stephen Rafferty filtration, granular activated carbon above sand, chemical feed Final Amount:
508-958-3346 systems and an intermediate ozone feed. Building components for $41,270,978
the plant included HVAC, plumbing, fire sprinkler, gas and electrical
services. This project also included the demolition of equipment
and site piping at the existing water treatment facility, as well as,
site work, exterior piping systems, exterior above and below ground
tanks, sludge holding lagoons, construction of a garage, new raw
water intake and pump station, and directional drilling of the raw
water intake mains.
Easterly WWTF City of Marlborough, MA Work included construction of a new parshall flume structure, new | Original Amount: TH7H15
Improvements 135 Neil St headworks building and grit facilities, primary, first stage and second $43,963,174
Marlborough, MA 01752 stage settling tank upgrades, conversion to fine bubble aeration, new
Marlborough, MA odor control systems, upgrades to the existing sludge pumping
Ron LaFreniere systems, construction of two WAS storage tanks, new chem Final Amount:
508-624-6910 systems, chlovine contact tanks upgrades, a new generator, $48,154,973
rlafreniere@marlborough- construction of two sludge mix tanks, operation building
ma.gov improvements, new sludge dewatering system, drainage & site Owner initiated
improvements, vegetative roofs, new satellite pumping station and changes for
new resident drop-off facility. Work involved demolition, site work, improvements
yard piping, plumbing, fire protection, HVAC, electrical and | beyond the original
instrumentation and controls/SCADA. scope of work.
CSO 005-006 City of Nashua, NH Work consisted of the construction of a 1,000,000 gallon CSO Original Amount: 5/26/15
Screening & 9 Riverside St storage tank, castin-place concrete screening chamber, influent $11,733,801
Disinfection Facility Nashua, NH 03062 chamber, drain chamber, effluent chamber, outfall slide gate
chamber, CSO screens, flush gates, tipping buckets, slide gates, 60-
Nashua, NH Bill Keating inch outfall pipe micro-tunneled in place and a building to house Final Amount:
603-589-3330 sodium hypochlorite and bisulfite chemical storage, vacuum dosers, $11,691,255

keatingw@nashuanh.gov

instrumentation, controls, site work, and electrical

ORIGINAL AND

FINAL
CONTRACT START AND
PROJECT NAME & PROJECT AMOUNT AND END DATES
LOCATION OWNER PROJECT DESGRIPTION AND SPECIFIC SCOPE EXPLANATION {MIDIYYYY)
Carnaghi ~ Model Spincratt Initial scope was preparing an existing area to support a Carnaghi | Original Amount: 12/04/14
AX52T Vertical 500 Iron Horst Part Vertical Turning Center, which Spincraft uses to create complex $1,164,900
Turning Center North Billerica, MA 01862 metal fabrication for the aerospace, defense and energy industries.
Work consisted of demolition of concrete floor siab, dewatering and Final Amount:
North Billerica, MA Joe Santa Fe excavation with engineered support in order to form and place a $3,291,806
978-667-2774 concrete foundation measuring 60'x55' inside the existing facility.
jsantafe@spincraft.net Prior to starting construction, the soil was found to be contaminated Owner initiated
with asbestos. To address this issue, Methuen, in conjunction with changes due to
the owner and engineer, developed a plan to safely remove and environmental
dispose of over 2,000 tons of contaminated material. issues beyond the
original scope of
work
Anaerobic/Digestion/ | Lewiston-Auburn Water Pollution | Furnish and install two new anaerobic digesters, a biogas and Original Amount: 02/27/14
Energy Recovery - Control Authority digested sludge storage tank and cover system new digester $11,140,548
Lewiston-Auburn PO Box 1928 equipment building with new sludge heat exchangers, central dual-
WPCA - Lewiston, Lincoln, ME 04241 fuel boilers and hot water recirculation pumps, digester mixing Final Amount:
ME system pumps, recirculation pumps and belt filter feed pumps, new $12,774,044
Clayton Richardson electrical and instrumentation and replacement of existing thickened
207-782-0917 sludge pumps. Owner initiated
crichardson@lawpca.org changes for
improvements
beyond the original
scope of work.
Water Treatment City of Somersworth, NH installation of new clarifiers with associated pumps, polymer system, | Original Amount: 02/05/2008

Facility Upgrade

Somersworth, NH

1 Government Way
Somersworth, NH 03878

Robert Belmore
603-692-9503
bbelmore@somersworth.com

controls and instrumentation. Construction of a new concrete clear
well. Construction of three (3) earthen process waste lagoons and
the installation of new Alum, Ferric Chloride, and Aluminum Sulfate
Feed System at the existing 6 MGD water treatment facility.

$6,326,234

Final Amount:
$6,483,467

Owner initiated
changes for
improvements
beyond the original
scope of work.