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FLOW METER SELECTION/INSTALLATION

Once a site has been identified the appropriate meter with any specific sensors will be installed.
The installation will consist of installing tight fitting aluminum bands with both flow depth and
velocity sensors mounted in such a way as not to obstruct flow or snag paper or other disposed
items m the flow stream.

INITIAL & SUBSEQUENT FLOW VERIFICATION

During the installation process, the meter will be operated in such a way as to instantaneously
obtain and display both depth and velocity readings. Manual depth measurements will be
obtained and compared to meter readings, any diffizrences will be corrected to within 0.10
inches. Using a hand held velocity meter, readings will be obtained and compared to the metered
velocity readings and adjustments to the installed equipment will be made until a reasonable
match is obtained. During each maintenance Visit, the following will be performed and noted on
site log sheets:

Actual depth of flow

Metered depth of flow

Actual flow velocity

Metered flow velocity

Flow pattern will be graphed for the previous period

Scatter plots of both depth & velocity will be reviewed

Any adjustments ( if necessary) will be noted

Battery voltage logged and if necessary, batteries will be replaced

DATA QUALITY REVIEW

Staff operating at our headquarters will review the flow data as it is received for completeness
(missing data). A more detailed review will take place at a later date when the actual field logs
arrive. Flow data files will then be combined with rainfall data and graphs will be prepared to
begin a more detailed review of all depth, velocity and flow data. Abnormalities such as
unexplainable depth spikes or drop outs as well as inconsistent velocity trends will be noted.
Additional comparison graphs will be prepared that will use both actual depth and velocity data
as well as predicted data. Scatter plots will also be produced to better understand specific
characteristics of the site as well as help identify isolated incorrect measurements. Adjustments
or corrections, if any, will be performed and documented.

IV. CLIENT RESPONSIBILITIES
The Client shall provide the following at no additional cost to the Subconsultant:

A. Furnish copies of the necessary plot maps of all sewers to be studied. The sewer lines and
manholes should be clearly marked and labeled with a numbered refierence system.

B, Make any revisions to the sewer maps in the study area based on correction data collected
during the fieldwork.

C. Make arrangements to provide traffic control as required by local public safety authorities.

D. Make arrangements to provide access to and exposure for entry those manholes within the
study area which are buried, covered or otherwise not readily accessible.

E. Provide free and legal access to all sites of work.

F. Assure the prompt clearance of major blockages or obstructions in the sewer system, if any,
should such clearance be required for performance of the work.

G. Provide the shutdown of certain pump stations, upon prior request, should it become
necessary for the satisfactory performance of the work.

TH. In the absence of any of the assurances indicated above, give Subconsultant release from
responsibility for the performance of the affizcted portions of the work under this Agreement.

VI. TIME OF PERFORMANCE

Subconsultant anticipates initiating fieldwork no later than SEPTEMBER 1, 2021 with all such
fieldwork to be completed JUNE 30, 2023 (to coincide with expiration of amendment#3 of
the CSO Flow monitoring contract with Nashua which is extended year to year thru
6/30/23 subject to annual budget appropriations). All data will be provided to the Client
within 30) days of completion of each field task.

This proposal is valid until December 31, 2021.

FEES

| Item | Description of Tasks Estimayed Unit Total
# | Quantity Cost Cost

Flow Meter Installation 4 Meters $1,000.00 $4,000.00

2 | Flow Meter Operation, Maintenance, & Rental | 88 Meter | $450.00 | $39,600.00
(4 Meters x 22 Months= 88 Meter Months) Months

3 Flow Data Reduction & Presentation 88 Data $200.00 $17,600.00
(4 Meters x 22 Months= 88 Data Months) Months

_ Total: $61,200.00

VU. METHOD OF PAYMENT

The Method of Payment for Professional Services outlined above shall be in the form of progress
invoices to be submitted to the Client for the items above as the fieldwork is actually completed.
Such invoices are due and payable within THIRTY (30) days.

Regards,

Flow Assessment Services, LLC

Quite

Dennis Vigliotte
Managing Partner

®
ACORD
(—

CERTIFICATE OF LIABILITY INSURANCE

DATE (MM/DD/YYYY)
05/03/2021

THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS
CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES
BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED

REPRESENTATIVE OR PRODUCER, AND THE CERTIFICATE HOLDER.

IMPORTANT: If the certificate holder is an ADDITIONAL INSURED, the policy(ies) must have ADDITIONAL INSURED provisions or be endorsed.
If SUBROGATION IS WAIVED, subject to the terms and conditions of the policy, certain policies may require an endorsement. A statement on
this certificate does not confer rights to the certificate holder in lieu of such endorsement(s).

PRODUCER BONTACT Patricia LeBlanc
; PHONE - FAX -
Brown & Brown of New Hampshire (AIG. No, Ext): (603) 424-9901 (AIC, No}: (866) 848-1223
309 Daniel Webster Highway EMAL ss: pleblanc@bbnhins.com
INSURER(S) AFFORDING COVERAGE NAIC #
Merrimack NH 03054 INSURERA: /he Travelers Indemnity Company of Connecticut 25682
INSURED INSURERB: /he Phoenix Insurance Company 25623
Flow Assessment Services LLC INSURERC: |ravelers Property Casualty Company of America 25674
72 Priscilla Ln. INSURER D: Admiral Insurance Company 24856
INSURER E :
Auburn NH 03032 INSURER F:
COVERAGES CERTIFICATE NUMBER: 2021 REVISION NUMBER:
THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD
INDICATED. NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS
CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS,
EXCLUSIONS AND CONDITIONS OF SUCH POLICIES. LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS.
INSR ADDL|SUBR POLICY EFF | POLICY EXP
LTR TYPE OF INSURANCE INSD | wvD POLICY NUMBER (MM/DD/YYYY) | (MM/DD/YYYY) LIMITS
x< COMMERCIAL GENERAL LIABILITY EACH OCCURRENCE $ 1,000,000
DAMAGE TO RENTED
| CLAIMS-MADE OCCUR PREMISES (Ea occurrence) $ 300,000
MED EXP (Any one person) $ 5,000
A Y P-660-7R164868-TCT-21 01/01/2021 | 01/01/2022 | LeRconal a ADV INJURY g 1,000,000
GEN'LAGGREGATE LIMIT APPLIES PER: GENERAL AGGREGATE g_ 2,000,000
><) powicy [| aE [| Loc propucts-compiopace | 5 2:000,000
OTHER: $
AUTOMOBILE LIABILITY COMBINED SINGLE LIMIT $s 1,000,000
(Ea accident)
><| any Auto BODILY INJURY (Per person) | $
OWNED SCHEDULED - -21-43- i
B OU Tas ONLY ress Y BA-7R164217-21-43-G 01/01/2021 | 01/01/2022 | BODILY INJURY (Per accident) | $
HIRED NON-OWNED PROPERTY DAMAGE $
AUTOS ONLY AUTOS ONLY (Per accident)
$
><) UMBRELLA LIAB ><! occur EACH OCCURRENCE g 9,000,000
Cc EXCESS LIAB CLAIMS-MADE CUP-7R165472-21-43 01/01/2021 | 01/01/2022 | , carecate g 2,000,000
DED | | RETENTION g 10,000 $
WORKERS COMPENSATION | PER Ix OTH-
AND EMPLOYERS' LIABILITY YIN STATUTE ER 7000000
CO CROC NIBEN ONC URED OO TVE NIA UB-18084133 03/18/2021 | 03/18/2022 LEL.EACHACCIDENT §
(Mandatory in NH) E.L. DISEASE -EA EMPLOYEE | ¢ 1,000,000
If yes, describe under 1.000.000
DESCRIPTION OF OPERATIONS below E.L. DISEASE - POLICY LIMIT | $ [mY *?
; Aggregate $5,000,000
Contractors Pollution and ;
D | Professional Liability FEI-ECC-28148-00 01/01/2021 | 01/01/2022 | Each Claim $5,000,000

DESCRIPTION OF OPERATIONS / LOCATIONS / VEHICLES (ACORD 101, Additional Remarks Schedule, may be attached if more space is required)

The City of Nashua is listed as additional insured for ongoing and completed operations when required by written contract or agreement.

Workers Compensation 3A States: CT, DE, MA, MD, ME, NH, NJ, NY, PA, RI, VA, VT

CERTIFICATE HOLDER

CANCELLATION

The City of Nashua
229 Main Street
City Hall

Nashua NH 03060

SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE
THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN
ACCORDANCE WITH THE POLICY PROVISIONS.

AUTHORIZED REPRESENTATIVE

Pataca Le Ateme

ACORD 25 (2016/03)

© 1988-2015 ACORD CORPORATION. All rights reserved.

The ACORD name and logo are registered marks of ACORD

City of Nashua

Purchasing Department
Administrative Services Division (603) 589-3330
229 Main Street - Nashua, NH 03060 Fax (603) 594-3233

July 28, 2021
Memo #22-154

TO: Mayor Donchess
Finance Committee

SUBJECT: Construction Engineering for Phase 2 of the Pump Station Upgrade Project in the amount
not to exceed $427,600 funded from accounts 81700 Infrastructure Improvements

Please see attached communications from David Boucher, Superintendent of the Wastewater Department,
dated July 22, 2021 for project specific details related to this purchase. Below please find a summary of
the purchase approval request:

Item: Installation of and 2 year contract to monitor 4 flow meters on interceptors within
the Wastewater collection system

Value: $427,600

Vendor: Wright Pierce of Topsham, ME

Department: 169 Wastewater
Source Fund: 53107 Architect & Engineering Services

Ordinance: Pursuant to § 5-84 Special purchase procedures. A/ (5) Purchases from a sole
manufacturer, where it is determined to be more efficient and economical to
reduce costs of maintenance of additional repair parts, supplies or services.

The Board of Public Works (7/22/21 BPW meeting), Division of Public Works: Wastewater, and the
Purchasing Department respectfully request your approval of this contract.

Regards,
Kelly Parkinson

Purchasing Manager

Ce: D Boucher
C O'Connor

To:

From:

Re:

D. Motion:

Attachments:

Discussion:

City of Nashua, Public Works Division

Board of Public Works Meeting Date: July 22, 2021

David L. Boucher, Superintendent
Wastewater Department

Pump Station Upgrades Phase II — Construction Phase Services

To approve the contract with Wright Pierce of Thompson, ME in an amount not
to exceed $427,600 for construction administration services for the Pump Station
Upgrades Phase II Project. Funding will be through: Department: 169-
Wastewater; Fund: SRF Loan; Activity: Pump Station Upgrades Phase II.

Wright Pierce Engineering Cost Summary

The Phase II Pump Station Upgrades Project will be for upgrades to the remaining
8 pump stations. The first six pump stations, which were part of the Phase I Pump
Station upgrades were completed in May 2021. Wright Pierce provided
construction phase services for the Phase I project. They have managed the project
satisfactorily and came in under budget for final costs. This motion is to award the
construction phase services of the Phase II project to Wright Pierce.

Construction is estimated to last 21 months and will be a bigger project than the
Phase I upgrades. Wright Pierce’s services include residential engineering and
construction administration. Their cost proposal, at approximately 8% of the
$5,413,475 construction costs, is reasonable at $427,600.

Page 1 of 2

ENGINEERING CONSTRUCTION PHASE
CONTRACT FOR PROFESSIONAL SERVICES
FOR
TREATMENT WORKS

CITY AFOMAN OF NASHUA, NEW HAMPSHIRE

This AGREEMENT made and entered into at HILLSBOROUGH County, New Hampshire, this __— day of

2021, by and between City4oewrof NASHUA, NEW HAMPSHIRE hereinafter called the OWNER, and WRIGHT-PIERCE
hereinafter called the ENGINEER.

WITNESSETH:

WHEREAS, the OWNER intends to construct Treatment Works in accordance with the contract drawings and bidding

documents for the "Wastewater Pump Station Upgrades - Phase 2" dated May 2021 and prepared by Woodard &
Curran,
Hereinafter called the PROJECT, and

WHEREAS, professional sanitary engineering services will be required for construction administration, resident
engineering and related services, and

WHEREAS, such services are of a distinct professional nature and hence not subject to the bidding process,

NOW THEREFORE, in consideration of these premises and of the mutual covenants herein set forth, the OWNER
hereby employs the ENGINEER to furnish the following engineering services in connection with the proposed PROJECT;
and it is agreed by and between the OWNER and the ENGINEER as follows:

Construction Phase Engineering Rev 9/2020
Pump Stations Upgrades — Phase II

ENGINEERING CONSTRUCTION PHASE CONTRACT Page 2 of 6
For Professional Services for Treatment Works

|. SERVICES TO BE PERFORMED BY THE ENGINEER

A. Upon execution of this AGREEMENT, the ENGINEER shall proceed with the general administration of
construction and (faltime part-time) inspection by qualified personnel of the contractor's work to assure
compliance with the contract documents and any coincident or subsequent changes or change orders for the
construction of the treatment works for the (Fewa/City) of Nashua, New Hampshire, Wastewater Pump
Stations Upgrades — Phase 2. Said services shall include, but shall not necessarily be limited to:

1. General Construction Administration
a. Updating and modifications of contract documents to meet changed site and project conditions or
variations in State or Federal requirements.

Completion of formal contract documents for the award of contracts.

Checking detail construction, shop and erection drawings submitted by the contractor.

Reviewing laboratory, shop, and mill test reports of materials and equipment.

Preparation of drawings and technical material as required to supplement and/or clarify the contract

documents.

g. Review, verification, and approval of estimates for periodic and final payments to the contractors for
submittal to the OWNER and the DIVISION.

h. Periodic inspection of work and final inspection.

i. Observing and reporting performance and qualifying tests required by specifications.

j. Keeping daily records of construction progress and compiling same into progress reports for submission
to the OWNER and DIVISION.

k. Verifying and keeping records of construction items of work accomplished for use as a basis of checking
contractors’ monthly estimates.

|. Consultation and advice during construction.

m. Determination of need for and preparation of change orders for approval by the OWNER and DIVISION
based on conditions found during construction and/or additions or modifications to the work requested
by the OWNER and approved by the ENGINEER and the DIVISION and implemented at a price
recommended by the ENGINEER as equitable. For change order items exceeding $10,000, the ENGINEER
shall prepare an independent cost estimate.

n. Determination of “equality” for substitution of materials and equipment specified and securing DIVISION

approval thereof.

> oOo oa0

p. Preparation of application, supporting and associated documents for Federal, State, and other grant or
loan programs, including monthly reimbursement requests. Refer to Exhibit A — Federal and State
Reporting Requirements.

q. Preparation of certificate of substantial completion and contract completion.

r. Assist the OWNER in obtaining the required project related approvals of State and Federal agencies.

Construction Phase Engineering Rev 11/2020
Pump Stations Upgrades — Phase II

ENGINEERING CONSTRUCTION PHASE CONTRACT Page 3 of 6
For Professional Services for Treatment Works

Resident Inspection and Other Special Services

a. The ENGINEER agrees to provide atleast ene Registered Professional Cit Engineer a part-time Resident

Project Representative (RPR) on the project site and one or more inspectors as necessary (fulter part
time) to assist the ENGINEER in the work of General Administration as described under | (A) and in
observing construction activity for compliance with the contract documents and any associated change
orders. The budgeted effort is based on 2 days per week over a 78 week period for RPR services (total
of 1,248 hours). The DIVISION shall be notified in writing of the name of the RPR residentengineer,
assistantengineers, and construction inspecters-and shall be provided with a brief history of-the RPR

residenterngineers construction experience. The RPR resident engineerandhisinspecters shall be in the
employ of and under direct control of the ENGINEER. It is further agreed that failure of the RPR resident

engineer to administer the PROJECT to the satisfaction of the DIVISION or OWNER is deemed to be
sufficient basis for his removal from the PROJECT and replacement.

b. The ENGINEER agrees to provide supervision of initial startup and operation and for services during the
twelve-month warranty period and to prepare the Project Performance Certification and associated
documentation.

c. Preparation of an Operation and Maintenance Manual for approval by the DIVISION. After DIVISION
approval, the ENGINEER agrees to supply four (4) sets of the completed manual to the OWNER, and an
electronic version of the document for the DIVISION.

d. Preparation of record drawings of the work as constructed. Two (2) sets of prints to be furnished to the
OWNER, and an electronic version of the stamped and signed drawings for the DIVISION.

Il. THE OWNER'S RESPONSIBILITIES

A. Assist the ENGINEER by placing at his disposal all available information pertinent to the PROJECT, including
previous reports and other data relative to the reports.

B. Make provisions for the ENGINEER to enter upon public and private lands, municipal facilities and industrial
establishments as required to perform work under this AGREEMENT.

C. The OWNER also agrees to comply with DIVISION and Federal (Where applicable) requirements as they relate to
this project.

Ill. COMPENSATION TO BE PAID THE ENGINEER
A. Method of Payment Amount of Fee

1. Payment to the ENGINEER, for services rendered, shall be according to the following schedule:

Statements will be rendered (with modifications if necessary) monthly with billing by the hour and rate by
labor category with mark up and incidental expenses in accordance with the attached fee schedule.

2. The OWNER agrees to pay and the ENGINEER agrees to accept for all services under this AGREEMENT, a fee
not to exceed Four Hundred Twenty-Seven Thousand Six Hundred Dollars ($427,600.00).

B. Limits of All Payment

1. The ENGINEER further agrees that the following fee for his services under | (A)(1), for Construction
Administration on this PROJECT, (exclusive of work performed by resident engineering staff) is adequate to
complete the work and shall not exceed Two Hundred Fifty Thousand Six Hundred Dollars($250,600.00).

Construction Phase Engineering Rev 11/2020
Pump Stations Upgrades — Phase II

ENGINEERING CONSTRUCTION PHASE CONTRACT Page 4 of 6
For Professional Services for Treatment Works

2. Payment to the ENGINEER for resident engineering and other special services shall be as follows:

a. Resident engineering and supporting staff (as agreed to by the OWNER and DIVISION) as described
under | (A) (2) (a) for a period of 156 working days, an amount not to exceed One Hundred Twenty-Five
Thousand Three Hundred Dollars ($125,300.00).

b. Overtime shall be converted to equivalent fractions of 8-hour days. If the number of working days for
inspection personnel stated above is not sufficient to provide adequate inspection of the PROJECT, it is
agreed that the additional cost of resident services may be negotiated with the OWNER and the
DIVISION.

c. For supervision of initial start-up and operation of the project and Project Performance Certification as
described under | (A) (2) (b), during a period of twelve (12) months, an amount not exceed Twenty-Two
Thousand One Hundred Dollars ($22,100.00).

d. For preparation of the Manual as described under | (A) (2) (c) and instructions on its use, an amount not

to exceed Seventeen Thousand Three Hundred Dollars ($17,300.00).

Dollarc {S )
=< tT .

Orars

f. For preparation of the Record Drawings as described under | (A) (2) (d), an amount not to exceed Twelve
Thousand Three Hundred Dollars ($12,300.00).

ADDITIONAL COVENANTS

The ENGINEER agrees to provide in active charge of this PROJECT for the life of the contract a Project Engineer
who is a permanent employee of the ENGINEER and who a “qualified sanitary engineer” is as defined under the
DIVISION'S “Rules and Regulations for the Prequalification of Consulting Engineers.” The Project Engineer shall
be*

Jeffrey R. Pinnette, PE, Wright-Pierce, 230 Commercial Way, Suite 301, Portsmouth, NH 03801

* Resume clearly describing the candidate's qualifications for the assignment is appended for convenience of reference.

Any proposed change in identity of the Project Engineer on the PROJECT shall first be approved by the DIVISION
before transfer of responsibility is made. Failure of the Project Engineer to administer the PROJECT to the
satisfaction of the OWNER and/or DIVISION is deemed sufficient basis for his removal and replacement.

The ENGINEER agrees to be solely responsible for all bills or claims for payment for services rendered by others
and for all services and materials employed in his work, and to indemnify and save harmless the OWNER, and all
the OWNER'S officers, agents and employees against all suits, claims or liability of every name and nature arising
out of or in consequence of the negligent acts or failures to act of the ENGINEER or others employed by him in
the performance of the work covered by this AGREEMENT.

The ENGINEER further agrees to procure and maintain at his expense such workmen's compensation insurance
as is required by the statutes and public liability insurance in amounts adequate to provide reasonable
protection from claims for bodily injury, death or property damage which may arise from his performance and
the performance of his employees under this AGREEMENT.

All documents, including original drawings, design calculations, work sheets, field notes, estimates, and other
data shall remain the property of the OWNER; they shall be transmitted to the OWNER in clean and orderly

Construction Phase Engineering Rev 11/2020
Pump Stations Upgrades — Phase II