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THE CITY OF NASHUA “The Gate City’

Financial Services

Purchasing Department

November 9, 2017
Memo #18-056

TO: MAYOR DONCHESS
FINANCE COMMITTEE

SUBJECT: HEADWORKS UPGRADE PROJECT — CHANGE ORDER #7 (VALUE: $62,673)
DEPARTMENT: 169 WASTEWATER; FUND: SRF LOAN

Please see the attached communication from Noelle Osborne, Plant Operations Supervisor Wastewater
Department dated October 26, 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 Plant Operations Supervisor Wastewater Department, the Board of Public Works (10/26/2017
meeting) and the Purchasing Department recommend the approval of this change order to T-Buck
Construction of Auburn, ME in the amount of $62,673.

aad Dan Kooken
Purchasing Manager

Cc: N Osborne L Fautuex

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

To:

From:

Re:

B. Motion:

Attachments:

Discussion:

City of Nashua, Public Works Division

Board of Public Works Meeting Date: October 26, 2017

Noelle Osborne, Plant Operations Supervisor
Wastewater Department

Headworks Upgrade Project

To approve Change Order 7 to the Headworks Upgrades contract with T-Buck
Construction, Inc. in the amount of $62,673.11. Funding will be through:
Department: 169 Wastewater; Fund: SRF Loan; Activity: Headworks Upgrades.

Change Order 7 Backup

The contract with TBuck for the Headworks Upgrades at the Wastewater
Treatment Facility was originally for $2,848,222.00. Previous change orders in
the amount of $135,332.94 brings the current contract value to $2,983,554.94.
Past change orders included new lockers for the men’s locker room, relocation of
pipes and ducts due to conflicts, changing out electric circuits that were found to
be deficient, addition of several new ceiling mounted heaters and modifications to
influent flow channel to allow new screens to fit, plumbing and HVAC
modifications.

This change order is for 6 extra work items: 1) saw cut into concrete walls of the
long channel to allow new rake and screen to fit, 2) during modifications to
ceiling near men’s locker room it was found that there was open gaps above
ceiling from wet well to locker room; TBuck was asked to provide costs to seal
off that gap, 3) a structure beam was in the path of the effluent tube for wash press
no. 2; a fitting had to be ordered and installed to offset the tube, 4) the Wastewater
Facility request a viewing port be installed in the wall between the wash press
room and the garage housing the screenings container, 5) FRP odor control
adjustment of an additional 20 inches, and 6) electrical work necessary to replace
and reconnect several breakers that were incorrectly included as remove, not
replace.

The change order work scope and costs has been reviewed and approved by the
consultant Wright Pierce. The total amount of this change order comes to
$62,673.11. The new value of their contract following this change order will be in
the amount of $3,046,228.05.

This project is an SRF funded project and the City will be seeking a State Aid
Grant (SAG) in the amount of 20% of the costs should such funding become
available.

B-6.1

CHANGE ORDER
No. 7
PROJECT: _Headworks Upgrade == == Ss DATE OF ISSUANCE: oe
OWNER: == _City of Nashua
229 Main St, Nashua, NH 03062
CONTRACTOR: T-Buck Construction, Inc. COWNER’s ProjectNo. ae

CONTRACT FOR: — Headworks Upgrade ENGINEER _ Wright-Pierce_ ee
ENGINEER’s Project No. _ 13089

You are directed to make the following changes in the Contract Documents.

Description: Refer to the attachments.

Purpose of Change Order: Refer to the attachments.

Justification: Work was not included in original contract documents.

Attachments: Change Order No. 7 Summary Sheet, Change Order No. 7 Items 1-6 back-up documentation.

CHANGE IN CONTRACT PRICE CHANGE IN CONTRACT TIME
i Original] Contract Price Original Contract Time
$ 2,848,22200 7 ; _455 ae _
(days or date)
Previous Change Orders Net change from previous Change Orders i
S 135,332.94 _ . Bo
(days) '
oo |
Contract Price prior to this Change Order Contract Time prior to this Change Order
$ _2,983,554.94 . 528
(days or date)
Net Increase of this Change Order Net Increase this Change Order
$ 62,673.11 — (25 et
(Gays)
oe ence cen nee a
Contract Price with all approved Change Orders Contract Time with all Change Orders i
: 553 days (Substantial Completion = 10/27/2017,
$ _3,046,228.05 Final Completion = 11/27/2017)
(days or date) }

This document will become a supplement to the CONTRACT and all provisions will apply hereto. The
attached Contractor’s Revised Project Schedule reflects increases or decreases in Contract Time as

authorized by this Change Order.

Stipulated price and time adjustment includes all costs and time associated with the above described change.
Contractor waives all rights for additional time extension for said change. Contractor and Owner agree that
the price(s) and time adjustment(s) stated above are equitable and acceptable to both parties.

RECOMMENDED: APPROVED: APPROVED, é APPROMED:
By: 7 fern eed. By: Cte LZ
~TY""Engineer Owner >" Contracte: NHDES
WONW/2017— OUT {7
Date Date Date Date

13089A

CITY OF NASHUA, NEW HAMPSHIRE
WWTF HEADWORKS UPGRADE PROJECT

Change Grder No. 7 Summary

Item No.|Description Reason Amount
1 Concrete Removal & Channel Additional concrete removal required in “long” channel fo install new mechanical 5 14,154.10
Cleaning bar screen. Wet weather event required the wet well/lower screen room to be oo
Demolition of ceiling in first-floor hallway revealed open duct space from the
2 Headworks Stairwell wetwell to the men's locker room; repairs made to bring the space up to current $ 6,996.34
code.
Existing conditions require conveyor from long channel wash press to be adjusted .
3 Conveyor Off-set SO as not to impact an existing beam. s 5,673.53
, tectrical W Work required to reconnect the Polymer Crane Feed and Breaker and :
4 Misc. Electrical Work Maintenance Shop Feed and Breaker (both were indicated to be removed and not $ 29,582.50
City request to install a viewing port in the wall between the Screenings Room
5 |Screenings Room Viewing Port an - creenings Garage epe 6 5 3,266.64 |"
TRISTE condilions required removing anu replacing an aldiional Segmmelr or 70
6 —|FRP Odor Control Off-set FRP duct. $ 3,000.00 fi
Total $ 62,673.11

T. Buck Construction, inc. PROPOSAL 32

249 Merrow Rd Auburn, ME 04210
207-783-6223 * FAX 207-783-3870

{Proposal Submitted to: Phone; (802) 431-1422 Date 9/15/2017
Wright-Pierce Fax: (866) 783-7101

Street: Job Name

230 Commerce Way, Suite 302 Nashua Wastewater Treatment Facility Headworks Upgrade
City, State & Zip Gode: Job Location:

Portsmouth, NH 03801 Nashua NH

Engineer: Job Phone:

Andy Morrill

hereby submit spacifications and estimate for:
Provide labor, material and equipment to saw cut and chip concrete for long influent channel and clean headworks.

Pro Cut
3.5 Days $1800.00/day $ 5,479.00
$ 5,479.00
15% O&P $ 821.85
$ 6,300.85
10% GC $ 547.90
SUB TOTAL $ 6,848.75 $ 6,848.75
General Contractor HOURS RATE
Labor week ending 9/1/17 9 $ 45.00 § 405.00
Labor week ending 9/8/17 22 $ 45.00 $ 990.00
Fork lift operator week ending 9/8/17 3 $ 4800 §$ 144.00
Labor week ending 9/15/17 26 $ 45.00 $ 1,170.00
Labor week ending 9/22/17 48 $ 45.00 $ 2,160.00
Labor week ending 9/30/17 2 $ 45.00 § $0.00
fEquipment
12000 pound jull 1 day $ 500.00
Compressor w/hammer 3 days $ 600.00
Consumables $ 293.48
$ 6,352.48
15% O&P $ 952.87
$ 7,305.35 $ 7,305.35
TOTAL $14,154.10

1) T Buck Construction requests and additional 10 days be added to the contract time

fe Propose hereby to fumish material and labor complete in accordance with above specifications. for the sum of:
FOURTEEN THOUSAND ONE HUNDRED & FIFTY FOUR DOLLARS

Ail material is quarenteed to ba as specified. All work to ba completed ina Authorized
workmaniike manner according fo standard practices Any alteration or Signature
deviation from above specifications invelving extra coats wil be executed only Bruce Kenney
upon witten orders, and will become an extra charge over and above the
estimate. All agreements contigent upon strikes, accidents or delays beyond Note: This proposal may be withdrawn
control. Owner to cary fire, iomedo end other naceasary insurance. Our by us if not accepted within — days.

fkers Gre fully covered by Worlman’s Compensation insurance

Acceptance of Proposal: te above prices, specifications and
work a6 spscifiad. Payment wil be made as outlined above

Date of acceptance Signature

INVOICE

— of NH
The Concrete Cutting
Professionals
-183 State Route 125 * Brentwood NH 03933

M4 (781) 899-0006 Ri (401) 464-2004
NH (603) 628-0440 CT (880) 620-0174

WALL SAWING ~ CORE DRILLING - ASPHALT SAWING -SLAB SAWING
: DEMOLITION & REMOVAL

T BUCK CONSTRUCTION
3028 AUBURN RD
TURNER, ME 04282

r———_ Invoice Information

invoice #: 8280

Date: OS/O7/17
Tarme: Neat 30 Days
Customer #: TBUCKS
PO#: 38404

Job #:

Job Ticket: 28407-N, 28407-NA, More.|.

Site infermation
WWTF
2 SAWMILL RD
NASHUA,

T. Buck Construction, inc.

249 Merrow Rd Auburn, ME 04210
207-783-6223 * FAX 207-783-3970

PROPOSAL

33A

Date 10/10/2017

Proposal Submitted to: Phone: (802) 431-1422
Wright-Pierce Fax: (866) 783-7101
Street: Job Nama
230 Commerce Way, Suite 302 Nashua Wastewater Treatment Facility Headworks Upgrade
ity, State & Zip Code: Job Location:
Portsmouth, NH 03801 Nashua NH
Engineer: dob Phone:
dAnd,y Morrill

hereby submit specifications and eatimate for:

Provide labor, material and equipment to demo existin

iling
Seacoast Scaffolding

ACT

pGeneral Contractor

Labor
Material
Consumables

15% O&8P

TOTAL

15% O&P
10% GC
SUB TOTAL
15% O&P
10% GC
SUB TOTAL

1) T Buck Construction requests and additional 5 days be added to the contract time

$
$
$
$

3
$
$

$
$
$
3

$ 2,347.34

3,063.00
3,063.00.
459.45
3,522.45
__ 306.30
3,828.75

667.00
661.00
99.15
780.15
66.10
826.25

g ceiling in west stairwell to headworks, install FRP/plywood wall and install new

$ 3,828.75

$ 826.25

$ 2,341.34

$ 6,998.34

ile Propose henaby to fumish matertal and jabor complete in accordance with above specifications, for the sum of:
ASIX THOUSAND NINE HUNDRED & NINETY SIX DOLLARS

}il material is quarantead to be as specified. Al work to be complated in s
peorkmanike manner according to standard practicas. Any alteration or
Keviaton from above specifications involving extra costs will be executed only
Lipon written overs, and will become an extra charge over and above the
pistimate. Ali agreements contigent upon strikes, accidents or delays beyond

Authorized
Signature

Bruce Kenney

Note. This proposal may be withdrawn

eur control. Owner to carry fire, tomade end other necessary insurance. Our by us # not accepted within 5 days.
workers are fully covared by Workman's Compensation insurance,

Acceptance of Proposal- the above prices, specifications and

Date of acceptance Signature

fx 83 specified. Payment wit bo mada as outfined above.

Seococasi Scaifoid

& EQUIPMENT CORPORATION

243 Sheep Davis Rd.

Concord, NH 03302

Phone: 603-224-0999

Fax: 603-224-1414

Prepared by: Dana Harris
dana@seacoastscaffald.com

: Buck Construction Inc.
302B Auburn Road
Turner, ME 04282

Atin: Bruce Kenney
207-831-4968
brucetbuck@maine.rr,com

___ DESCRIPTION
Exterior Scaffold: Saw Milt, Nashua, NH

DATE: 9/25/2017
QUOTE # 23405
Acct #

Valid Until: 11/24/2017

oie

x
Print Name:
PO:

Equipment Rental (28 day period) x 350.00
Equipment Erect 1,800.00
Equipment Dismantie 1,080.00
Transport 292.00
Subtotal $ 3,522.00
TERMS AND CONDITIONS Taxable § 350.00
1. See Cover Sheet and Attached Lease Agreement and Disclosure _ Tax rate (Sale)
2, Payment Terms are TBD Prior to Credit/References Check Tax due § -
3. Please fax or email the signed price quote to the address above Other | $ - |
Customer Acceptance (sign below): TOTAL Estimate $ 3,522.00

if you have any questions about this price quote, please contact
Dana Harris, Phone: 603-892-5568, email: dana@seacoastscaffold.com

Quotation

Boucher Acoustic, LLC

Estimate
695 Mast Road, Unit 3
Manchester, NH 03102 Date Estimate #
(603) 622-7278 9/27/2017 | 17477
Name / Address
T Buck Construction
302 Auburn Rd
Turner, ME 04282
Project
Nashua WWTF (Rated)
Description Total
Materials and labor for suspended acoustical ceilings 760.00
2x2 VinylRock tile in 15/16 aluminum capped grid in stairwell
Should you need any additional information please do not hesitate to call Total $760.00

T. Buck Construction, inc. PROPOSAL 34A

249 Merrow Rd Auburn, ME 04210
207-783-6223 * FAX 207-783-3970

ODA sac haan

Proposal Submitted to: IPhone: (802) 431-1422 Date 10/2/2017
Wright-Pierce Fax: (866) 783-7101
‘Street: Job Name
230 Commerce Way, Suite 302 Nashua Wastewater Treatment Facility Headworks Upgrade :
City, State & Zip Code: Job Location: ‘
Portsmouth, NH 03801 Nashua NH
Engineer: Job Phone:
Andy Morrill
fe hereby submit specifications and estimate for:
Provide labor, material and equipment to Install offset for wash press #1 conveyor and rework existing supports
GC Equipment (welder) $ 380.00
Labor $ 1,392.50
Material $ 3,107.25
Pipe & fittings to relocate drain $ §3.75
$ 4,933.50
16% O&P $ 740.03
$ 5,673.53
1) T Buck Construction requests and additional 10 days be added to the contract time
fe Propose heraby to furnish material and tsbor complete in accordance with above specifications, for the sum of:
FIVE THOUSAND SIX HUNDRED & SEVENTY THREE DOLLARS
Aa material is guaranteed lo be as specified. AN work to be completed in a Authorized
rkmaniike manner g fo practi Any alteration or Signature
Heviniion from above specifications involving extra costs will be executed only Bruce Kenney
Ripon written orders, and will become an extra cherge over snd above the
estimate. All agreements contigent upon strikes, accidents or delays beyond Note: This proposal may be withdrawn
be. control Owner te cany fire, tomado and other necessary insurance. Our by us if not accepted within __5 days.
workers ere fully covered by Workman's Compensation Insurance.
ceptance of Proposal- ths sbove prices, specifications and
work as specified. Payment will bs made as oulfined above
Signature

Date of acceptance