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) THE CITY OF NASHUA “The Gate City’

Financial Services.

Purchasing Department

June 1, 2017
Memo #17-129

TO: MAYOR DONCHESS
FINANCE COMMITTEE

SUBJECT: HEADWORKS UPGRADE PRODECT — CHANGE ORDER #4 (VALUE: $27,625)
DEPARTMENT: 169 WASTEWATER; FUND: SRF LOAN
ACTIVITY: HEADWORKS UPGRADE

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 change order in the amount of $27,625 to T-Buck
Construction Inc of Auburn, ME.

Rgspectfully,, _

Os rc“
(Wo fue _—,
\! Dan Kooken

Purchasing Manager

Cc: N Osborne L Fauteux

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

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

Headworks Upgrade Project

To approve the change order to the Headworks Upgrades contract with T-Buck
Construction, Inc. in the amount of $27,625.06 Funding will be through: Department:
169 Wastewater; Fund: SRF Loan; Activity: Headworks Upgrades.

Change Order 4 Backup

The contract with TBuck for the Headworks Upgrades at the Wastewater Treatment
Facility is currently for $2,911,717.05, which includes all change orders to date.

This current change order is for 3 items. The first item is modifications of a vent duct to
accommodate a new HVAC project. The second is the relocation of a previously
unknown duct that was discovered during the men’s locker room expansion. The third
includes the relocation of power ducts in the ceiling that are within the floor space of
the new screenings room. The new screenings room will be a sealed room with its own
ventilation system to meet the requirements of a classified space. The overhead
conduits therefore have to be relocated to allow this classification. All of this work has
been reviewed and approved by the consultant Wright Pierce.

The total amount of this change order comes to $27,625.06. Wright Pierce and the
Wastewater Department have reviewed these costs and it appears to be in line with the
work to be done. The new value of their contract following this change order will be in
the amount of $2,939,342.11.

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, 4

PROJECT: Headworks Upgrade DATE OF ISSUANCE:

OWNER: City of Nashua

229 Main St, Nashua, NH 03062
(Address)

CONTRACTOR: T-Buck Construction, Inc. OWNER’s Project No,

CONTRACT FOR: —Headworks Upgrade ENGINEER _Wright-Pierce
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. 4 Summary Sheet, Change Order No. 4 Items 1-3 back-up documentation.
CHANGE IN CONTRACT PRICE CHANGE IN CONTRACT TIME

Original Contract Price Original Contract Time

$ 2,848,222.00 455
(days or date}

Previous Change Orders Net change from previous Change Orders

63,495.05

31
(days)

Contract Price prior to this Change Order
2,911,717.05

Contract Time prior to this Change Order

486
(days or date)

Net Increase of this Change Order
27,625.06

Net Increase this Change Order
if

(days)

Contract Price with all approved Change Orders Contract Time with all Change Orders

$ 2,939,342.11 497
{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.

APPROVED: “GLA
By: By A y:

i Owner Contracto NHDES
S/ilaoi SB) tb} 17
Date Date Date Date

13089A

CITY OF NASHUA, NEW HAMPSHIRE
WWTF HEADWORKS UPGRADE PROJECT
Change Order No. 4 Summary

Item No./Description Reason Amount Notes

Modification to the 26-inch FRP bypass duct to accommodate additional HVAC

1 26-inch Bypass Duct equipment being installed on the roof of the Operations Building with the HVAC | § 8,081.25 ]T-Buck CP No. 18, 03/21/2017;
Upgrade project. WP-RFI-07, 02/21/2017

. . Unknown condition - vent required relocation in order to complete construction

: 4-inch Vent Relocation of wall in expanded Men's Locker Room area. $5,549.71 T-Buck CP No. 24, 04/03/2017
Unknown condition - communication/power ducts above the hallway ceiling

3 Screenings Room Soffit required relocation/construction of a soffit to avoid upgrading the conduits to $ 13,994.10
meet requirements of a classified space. T-Buck CP No. 25, 04/26/2017

Total [s 27,625.06 |

T. Buck Construction, Inc.

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

PROPOSAL 18

}Proposal Submitted to:
Wright-Pierce

Street:

230 Commerce Way, Suite 302

Phone:

Fax:
Job Name

(802) 431-1422
(866) 783-7101

Date 3/21/2017

Nashua Wastewater Treatment Facility Headworks Upgrade

City, State & Zip Code:
Portsmouth, NH 03801

Job Location:

Nashua NH

Engineer:
Andy Morrill

Job Phone:

we hereby submit specifications and estimate for:

Provide labor, material and equipment to perform work as described in Wright-Pierces WP-RF1-07

Material
Labor

15% O&P

GC O&P 10%
TOTAL

$ 4,665.00
$ 1,800.00
$ 6,465.00
$ 969.75
$ 7,434.75
$ 646.50
$ 8,081.25

1) T Buck will request a 4 day extension to the contract completion time if this proposal is excepted

IGHT THOUSAND & EIGHTY ONE DOLLARS

fe Propose hereby to furnish material and labor complete in accordance with above specifications, for the sum of:
E

II material is guaranteed to be as specified. All work to be completed in a

orkmanlike manner according to standard practices. Any alteration or
deviation from above specifications involving extra costs will be executed only
upon written orders, and will become an extra charge over and above the

estimate. All agreements contigent upon strikes, accidents or delays beyond

Authorized
Signature

Mark McPheters

Note: This proposal may be withdrawn

lour control. Owner to carry fire, tornado and other necessary insurance. Our by us if not accepted within 5 days.
workers are fully covered by Workman's Compensation Insurance.

Acceptance of Proposal- The above prices, specifications and

ine work as specified. Payment will be made as outlined above.

Date of acceptance Signature

ARMAND KH. LEMIRE CQ. INC,
7 DARTMOUTH STREET
P.O. BOX 16454, HOOKSETT, NH. 03106
PHONE (603) 625-5233 FAX (603) 625-5679

CHANGE ORDER #8

COMPANY T Buck Construction
ATTENTION Bruce Kenney
DATE 3/1/17

PROJECT Nashua Headworks
LOCATION Nashua NH

Hi Bruce, this change order is for the work described in WP-RFI-07, pricing
is as follows.

3’) Additional 26” FRP duct @$430' $1,290.00
Misc resins, tapes and supplies $125.00
24) Additional labor hrs @$75 hr $1,800.00
Additional freight on FRP $800.00
Controls add from ENE $2,450.00
Subtotal $6,465.00
AELCO 15% MU $969.75

Total amount of this change order is $7,434.75

MECHANICAL CONTRACTORS — COMMERCIAL, INDUSTRIAL & RESIDENTIAL

“" WBE/DBE CERTIFIED ~~

assigned by Professional Contractor to perform work under this contract. Approved key
personnel shall not be taken off of the project by Professional Contractor without the prior
written approval of the City of Nashua, except in the event of termination of employment.
Professional Contractor shall, if requested to do so by the City of Nashua, remove from the
job any personnel whom the City of Nashua determines to be incompetent, dishonest, or
uncooperative.

CITY OF NASHUA REPRESENTATIVE The City of Nashua may designate a City of Nashua
representative for this contract. If designated, all notices, project materials, requests by
Professional Contractor, and any other communication about the contract shall be addressed
or be delivered to the City of Nashua Representative.

CHANGES TO SCOPE OF WORK The City of Nashua may, at any time, by written order,
make changes to the general scope, character, or cost of this contract and in the services or
work to be performed, either increasing or decreasing the scope, character, or cost of
Professional Contractor performance under the contract. Professional Contractor shall
provide to the City of Nashua within 10 calendar days, a written proposal for accomplishing
the change. The proposal for a change shall provide enough detail, including personnel
hours for each sub-task and cost breakdowns of tasks, for the City of Nashua to be able to
adequately analyze the proposal. The City of Nashua will then determine in writing if
Professional Contractor should proceed with any or all of the proposed change. If the
change causes an increase or a decrease in Professional Contractor cost or time required for
performance of the contract as a whole, an equitable adjustment shall be made and the
contract accordingly modified in writing. Any claim of Professional Engineer for
adjustment under this clause shall be asserted in writing within 30 days of the date the City
of Nashua notified Professional Engineer of the change.

When Professional Contractor seeks changes, Professional Contractor shall, before any work
commences, estimate their effect on the cost of the contract and on its schedule and notify
the City of Nashua in writing of the estimate. The proposal for a change shall provide
enough detail, including personnel hours for each sub-task and cost breakdowns of tasks,
for the City of Nashua to be able to adequately analyze the proposal. The City of Nashua
will then determine in writing if Professional Contractor should proceed with any or all of
the proposed change.

Except as provided in this paragraph, Professional Contractor shall implement no change
unless the City of Nashua in writing approves the change. Unless otherwise agreed to in
writing, the provisions of this contract shall apply to all changes. The City of Nashua may
provide verbal approval of a change when the City of Nashua, in its sole discretion,
determines that time is critical or public health and safety are of concern. Any verbal
approval shall be confirmed in writing as soon as practicable. Any change undertaken
without prior City of Nashua approval shall not be compensated and is, at the City of
Nashua's election, sufficient reason for contract termination.

CITY OF NASHUA COOPERATION The City of Nashua agrees that its personnel will
cooperate with Professional Contractor in the performance of its work under this contract
and that such personnel will be available to Professional Contractor for consultation at
reasonable times and after being given sufficient advance notice that will prevent conflict
with their other responsibilities. The City of Nashua also agrees to provide Professional

GC 3 of 13

LEADERS IN THE DESIGN AND MANUFACTURING OF DUCTWORK, CARBON
ADSORBERS, SCRUBBERS, FANS, PIPING, TANKS, & COMPONENTS

www. PerryFiberglass.com

5415 Village Drive » Rockledge, FL 32955
PHONE: 321-609-9036
FAX:321-609-9003

oOo Perry Fiberglass Products, Inc.

QUOTE TRANSMITTAL

To: Armand E Lemire Co Inc 2/28/17
7 Dartmouth St
Hooksett, NH 03106

Attn: Sparky Lemire

We are pleased to submit a price for the following materials delivered per "special order" to
Nashua NH WWTF.

1) 3° x 26" FRP Duct (plain ends)

1 Pkg) FG cloth, resins, etc

Price for materials only $1,290*
Est Shipping Charge $800

* Pricing based on quick ship

Sincerely,

Fiberglass Shop

UU

SENE

SYSTEMS SSISIEEIESTEE?

REDUCING THE OPERATING ANO ENERGY COSTS OF YOUR FACILITY

To: Armand Lemire Co 2/28/17

Re: Nashua Headworks

We are pleased to submit a price for the work described in RFi WP 07 involving changing of controls and
sequencing.

Price for this work is $2,450

Sincerely,

Richard Olson

The authorized representative for Barber Colman, Siebe, Invensys and Schneider Electric I/A Systems

ENE Systems of New Hampshire | 1355 River Road, Bow, New Hampshire 03304 | pobrienweneofnh.con| enesystemsnh.com

WRIGHT-PIERCE =

Engineering a Better Environment REQUEST FOR INFORMATION
WWTF HEADWORKS UPGRADE
7 DATE: February 21, 2016
CITY OF NASHUA, NH aT
No.: WP 07
TO: Reference or affected design
Bruce Kenney — T Buck Construction document(s)
FROM: Spec.
Wright-Pierce Sect.:
DWG.: M-7
Other:

Subject: Modifications to Odor Control System
Description of Request:

Provide a cost to complete the following odor-control related work activities
1. Install the 26-inch FRP bypass duct to terminate 6’-0” above the roof line (current plans
show it terminating at 3’-0” above the roof line). Roof line defined as the top of parapet
wall.
2. Provide Bypass Control Damper Modulation as per the following:
a. The air balancer is to adjust the bypass damper (D-2) position to modulate open to
allow just enough air through to result in an inlet duct pressure just below (-)2”
w.c. to more or less match the pressure drop across the odor control medium.
b. The “full open” damper position is to be established with a spring-return type
damper actuator (a “fail open” type actuator).
c. A lockable stop-clamp is to be bolted to the quadrant, which will prevent the
damper from opening past the stop.

The proposal shall include all labor, materials, etc. to render a fully operable system. The
proposed cost shall be in accordance with Paragraph 17 of the General Conditions. If accepted,
the proposal will be included in a future Change Order.

Additional Info. Attached? Y [_] N [XJ Response needed by: 02/28/16 Signed: KYL

Response to Request:

Additional Info. Attached? Y [_] NL]

Is change to P&S Involved Y LINE] Signed: _. Date:
cc: Bill Keating — City of Nashua

Dan Dudley -NHDES

Portsmouth File

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