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To:

From:

Re:

D. Motion:

Attachments:

Discussion:

City of Nashua, Public Works Division

Board of Public Works Meeting Date: July 27, 2017

Noelle Osborne, Plant Operations Supervisor
Wastewater Department

Headworks Upgrade Project

To approve change order 5 to the Headworks Upgrades contract with T-Buck
Construction, Inc. in the amount of $17,452.98. Funding will be through:
Department: 169 Wastewater; Fund: SRF Loan; Activity: Headworks Upgrades.

Change Order 5 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 $91,120.11 brings the current contract value to $2,939,342.11. 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, and the addition of several new ceiling mounted heaters.

When wastewater enters the headworks area it splits into 2 channels, referred to as
the short and long channel. This change order is for extra work necessary to have
the new screen fit within the short channel width by increasing the cutouts in the
channel walls. It was not possible for the consultant to accurately measure the
concrete cutouts in the existing channel during the design phase, as there is
continuous wastewater flow entering the plant and the bottom portion of the
existing screen remained submerged. When flow was blocked from entering the
short channel, it was determined that the existing cutouts along the concrete walls
would not allow the new screen to fit properly. This change order is for the
additional saw cutting needed so that the new screen would fit within the existing
concrete channel. This same situation will occur when the contractor demolishes
the long channel; however it is premature to determine the additional costs until
they begin the work and assess the needs.

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
$17,452.98. The new value of their contract following this change order will be in
the amount of $2,956,795.09.

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. 5

PROJECT: _Headworks Upgrade DATE OF ISSUANCE:

OWNER: City of Nashua
229 Main St, Nashua, NH 03062
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: Clean Headworks & Additional Concrete Removal

Purpose of Change Order: Additional concrete removal required in "short" channel to install new mechanical
bar screen. Multiple wet weather events required the wet well/lower screen room to be cleaned after each
event. This work delayed installation of the screen.

Justification: Work was not included in original contract documents.

Attachments: Back-up docurnentation.
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
$ 91,120.11

Net change from previous Change Orders
42
. (days)

Contract Price prior to this Change Order

Contract Time prior to this Change Order

$ _2,939,342.11 497
‘ (days or date)
Net Increase of this Change Order Net Increase this Change Order
$ 17,452.98 21
(days)

Contract Time with all Change Orders

518 days (Substantial Completion = 9/22/2017,
Final Completion = 10/23/2017)
(days or date)

Contract Price with all approved Change Orders

$ _2,956,795.09

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.

RECO; ED: APPROVED:
By: By:
Engineer Owner
3/0}
Date Date

13089A

T. Buck Construction, Inc.

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

PROPOSAL 2?

230 Commerce Way,-Suite 302

Proposal Submitted to: Phone:
Wright-Pierce Fax:
Street: Job Name

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

6/9/2017

Nashua Wastewater Treatment Facility Headworks Upgrade

City, State & Zip Code:
Portsmouth, NH 03801

Job Location:
Nashua NH

Job Phone:

We heraby submit specifications and estimate for:

Provide labor, material and equipment to saw cut and chip concrete for short influent channe! and clean headworks.

Pro Cut
4.5 Days $7800.00/day $ 7,044.00
$ 7,044.00
15% O&P $ 1,056.60
$ 8,100.60
10% GC $ 704.40
SUB TOTAL $ 8,805.00 $ 8,805.00
General Contractor HOURS RATE
Labor week ending 5/5/2017 33.5 $ 45.00 $ 1,732.50
Labor week ending 5/19/2017 84 $ 45.00 $ 3,780.00
Fork lift operator week ending 5/19/2017 3 $ 48.00 $ 144.00
Labor week ending 5/26/2017 1 $ 45.00 $ 45.00
Labor week ending 6/9/2017 5 § 45.00 §$ 225.00
HEquipment
12000 pound jul 1 day $ 500.00
Compressor wilhammer 4 days $ 800.00
Consumables $ 293.48
15% O8&P $ 1,128.00
$ 8,647.98 $ 8,647.98
TOTAL $17,452.98
1) T Buck Construction requests and additional 21 days be added to the contract time
2) This proposal is for the short channel only
'e Propose hereby to furnish material and labor complete in accordance with above specifications, for the sum of:
SEVENTEEN THOUSAND FOUR HUNDRED & FIFTY TWO DOLLARS
t material is guaranteed to be 89 specified. All work to be completed in 5 Authorized
aniike manner according to standard practices. Any alteration ar Signature
tlon from sbove specifications Involving extra costs will be executed only Bruce Kenney
pon written ordars, and will become an extra charge over and above the
timate. All agreements contigent upon strikes, accidents or delays beyond Note: This proposal may be withdrawn
our contro!, Owner to carry fire, termado and ather necessary insurance. Our by us if not accepled within 5 days.
cers are fully covered by Workman’s Compensetion Insurance. ~~
Acceptance of Proposal- the abova pricas, specifications and
je work 85 specified. Payment will be made as outlined above.
[pat of acceptance ; Signature

‘Date:
Terme: Net. 40: ayé
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(622 THE CITY OF NASHUA “The Gate Ciy"

Financial Services

Purchasing Department

reve oe a SEE RaLIGeaRinaAeRGaeaeneete ee

July 27, 2017

Memo #18-010

TO: MAYOR DONCHESS
FINANCE COMMITTEE

SUBJECT: WWTF PLANT OVERSIGHT SERVICES —- AMENDMENT #1 (VALUE: $23,920)
DEPARTMENT: 169 WASTEWATER; FUND: WASTEWATER

Please see the attached communication from Noelle Osborne, Plant Operations Supervisor Wastewater
Department dated July 27, 2017 for the information related to this Amendment #1.

The Plant Operations Supervisor Wastewater Department and the Board of Public Works (7/27/2017

meeting) recommend the approval of this Amendment #1 to OspreyOwl Environmental, LLC of
Barrington, NH in the amount of $23,920.

Res ecttfull NaS
Cx YS bast at 76. oe a en,
Dart Kéoken

Purchasing Manager

Ce: N Osborne L Fautuex

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

City of Nashua, Public Works Division

To: Board of Public Works Meeting Date: July 27, 2017
From: Noelle Osborne, Plant Operations Supervisor

Wastewater Department
Re: OspreyOwl Environmental, LLC Service

F. Motion: To approve the proposal from OspreyOwl Environmental, LLC of Barrington, NH
in an amount not to exceed $23,920. Funding will be through: Department: 169
Wastewater; Fund: Wastewater; Account Classification: 53 Professional and
Technical Services.

Attachments: Scope of Work Proposal

Discussion: OspreyOwl has been providing support services to the Wastewater Treatment
Facility Since November of 2016. At this time, we wish to extend the length of
these services to continue through December of 2017. This will provide support
services 16 hours per week for an estimated 23 weeks. The scope of work will
include but is not limited to the following:

Training of Plant Administrative Staff in all aspects of permitting;

Training staff in use and development of process spreadsheets;

Explanation of operational questions presented by staff;

Overview of the operations staff means and methods of work and suggestions

for more efficient operation;

e Training of plant staff in all aspects of wastewater treatment plant operations,
laboratory testing, permitting and process control measures;

e Training of staff in WET testing protocol and in-plant clean sampling
methods;
Preparation of monthly progress reports on activities of the previous month;
Review and comment on regulatory rules as directed by Nashua
Administration;

e Interaction with any plant staff as directed by Nashua Administration;

e Development of a process plan and SOPs as directed by Nashua
Administration;

e Attend contractor/engineer/vendor meetings as directed by Nashua
Administration;

e Direct and train plant staff via PowerPoint or hands on demonstrations;

Provide all services and support for the Nashua Administrative Staff as

instructed.

SECTION 02085

POLYVINYL CHLORIDE GRAVITY PIPE AND FITTINGS

PART 1 - GENERAL

1.01 WORK INCLUDED:
This section covers the furnishing and installation of Polyvinyl Chloride (PVC) pipe and
fittings for sewer mains, sewer service connections and drain laterals to catch basins, as
indicated on the drawings and as specified herein.
1.02 RELATED WORK:
A. Section 01330, SUBMITTALS
B. Section 02252, SUPPORT OF EXCAVATION
C. Section 02300, EARTHWORK

D. Section 02518, TRACER TAPE

E. Section 02631, PRECAST MANHOLES AND CATCH BASINS

1.03 REFERENCES:
A. _ The following standards form a part of these specifications as referenced:
American Society for Testing and Materials (ASTM)

ASTM _—iD2321 Recommended Practice for Underground Installation of Flexible
Thermoplastic Sewer Pipe

ASTM — _D3034 Specification for Type PSM Polyvinyl Chloride (PVC) Sewer
Pipe
and Fittings

ASTM D3212 Specification for Joints for Drain and Sewer Plastic Pipes Using
Flexible Elastomeric Seals

ASTM _ F679 Specification for Polyvinyl Chloride (PVC) Large Diameter
Plastic Gravity Sewer Pipe and Fittings (18"- 27")

The National Association of Sewer Service Companies (NASSCO) Recommended
Specifications for Sewer Collection System Rehabilitation (Current Edition).

2022 Sewer Replacement Project Polyvinyl Chloride Gravity Pipe and Fittings
Nashua, NH 02085-1

Amendment #1
Scope of Work

OspreyOwi Environmenitai, LLC
268 Emeraid Drive
Barrington, NH 03825
(603) 978-5109
www.ospreyowl.com

email: RickCantu@ospreyowl.com

June 19, 2017

Ms Lisa Fauteux
Director of Public Works
9 Riverside Drive
Nashua, NH 03062

Re: Proposal (2017-05) to Provide Plant Oversight Support
Dear Ms Fauteux,

OspreyOwl, Environmental, LLC, will be providing services to the City of Nashua’s Wastewater
Treatment Plant at the directive of Noelle Osborne, Operations Supervisor and Lisa Fauteux , Director of
Public Works, for plant operational oversight. Rick Cantu will be the representative for OspreyOwl
Environmental (OOE) for the purpose of fulfilling this “Scope of Service.” The current schedule is to
provide services 16 hours per week on days mutually agreed to by the Operations Supervisor and OOE.
This schedule will be for the month of July 2017 in the fiscal year ending June 30, 2018. Examples of
work hours are two, eight-hour days per week, or three days at five hours for two and six hours on the
other one totaling 16 hours each week. Weekly schedules need to be set one week in advance. This
agreement may be extended month-to-month through December 2017 at the City of Nashua’s request.
This agreement may be cancelled by the City of Nashua at any time with a week’s prior notice.

Scope of Work
The scope of work will include, but is not limited to the following:

e Training of Plant Administrative Staff in all aspects of permitting;

® Training staff in use and development of process spreadsheets;

e Explanation of operational questions presented by staff;

e Overview of the operations staff means and methods of work and suggestions for more
efficient operation;

e Training of plant staff in all aspects of wastewater treatment plant operations, laboratory
testing, permitting and process control measures;

e Training of staff in WET testing protocol and in-plant clean sampling methods;

e Preparation of monthly progress reports on activities of the previous month;

e Review and comment on regulatory rules as directed by Nashua Administration;

e Interaction with any plant staff as directed by Nashua Administration;

e Development of a process plan and SOPs as directed by Nashua Administration;

e Attend contractor/engineer/vendor meetings as directed by Nashua Administration;

e Direct and train plant staff via PowerPoint or hands on demonstrations;

e Provide all services and support for the Nashua Administrative Staff as instructed.

Fees
The “Rates & Terms” are modified from the usual Rate Sheet outlined on the website. For the term of
this proposal the fee is a flat hourly rate of $65.00 per hour.

Any outside services that are requested by Nashua (e.g. laboratory testing by contract lab) that OOE
coordinates and provides payment for the service, there will be a 10% mark-up on all these costs.

Billing
OOE will invoice the City on a one-time basis covering the first half of the fiscal year from July 1, 2017
through December 31, 2017. OOE will work with the payment schedule as currently set by the City’s

financial policies.

Approval and Acceptance
OOE is pleased to continue an ongoing working relationship with the City of Nashua. If this proposal is

agreeable as presented, please sign in the space provided below.

Proposal Acceptance
OspreyOwl Environmental, LLC, Proposal 2017-05 Support and Oversight Services for the City of

Nashua’s Wastewater Treatment plant, is hereby accepted and executed by a duly authorized signatory
for the party to whom this document is addressed.

AMENDMENT No. 1
TO
CONTRACT
FOR INDEPENDENT CONTRACTOR

WASTEWATER TREATMENT FACILITY
PLANT OVERSIGHT & SUPPORT

BETWEEN
CITY OF NASHUA
AND
OSPREY OWL ENVIRONMENTAL, LLC.

This AMENDMENT No. 1, dated is attached to and made part of the CONTRACT
FOR INDEPENDENT CONTRACTOR between the City of Nashua, New Hampshire and Osprey

Owl Environmental, LLC, for Wastewater Treatment Facility Plant Oversight & Support dated

November 3, 2016 (“Contract”).

WHEREAS, Section 30 of the Contract’s General Terms and Conditions allows for written amendments
to the Contract when signed by both parties;

NOW, therefore, in consideration of the mutual covenants contained herein, the parties hereby mutually
agree as follows:

1. PROFESSIONAL ENGINEER agrees to perform the work, under this AMENDMENT
No. 1, in accordance with the attached, “Amendment 1 — Scope of Work, for a total amended
compensation not to.exceed

Sixty-Eight Thousand Nine Hundred Twenty Dollars (868,920)

2. All other terms and conditions of the Agreement shall remain in force until the
completion of the work authorized under this AMENDMENT No. 1.

3. This AMENDMENT No. 1, with attachments, along with the Agreement, constitutes the
entire agreement and understanding between the parties and supersedes all prior agreements and
understandings relating hereto.

WWTF PLANT OVERSIGHT & SUPPORT 1
OSPREY OWL ENVIRONMETAL, LLC
Amendment #1