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10.

performance of work terminated, abandoned, or suspended under the notice, assign to
the City of Nashua any orders or sub contracts specified in the notice, and revoke
agreements specified in the notice,

5. Not resume work after the effective date of a notice of termination unless and until receipt
of a written notice from the City of Nashua to resume performance.

In the event of a termination for cause, Professional Engineer shall receive all amounts due and not
previously paid to Professional Engineer for work satisfactorily completed in accordance with the
contract prior to the date of the notice, less all previous payments. No amount shall be allowed or
paid for anticipated profit on unperforined services or other unperformed work. Any such payment
may be adjusted to the extent of any additional costs occasioned to the City of Nashua by reasons
of Professional Engineer's failure. Professional Engineer shall not be relieved of liability to the City
of Nashua for damages sustained from the failure, and the City of Nashua may withhold any
payment to the Professional Engineer until such time as the exact amount of damages due to the
City of Nashua is determined. All claims for payment by the Professional Engineer must be
submitted to the City of Nashua within 30 days of the effective date of the notice of termination.

If after termination for the faiture of Professional Engineer to adhere to any of the terms and
conditions of the contract or for failure to satisfactorily, in the sole opinion of the City of Nashua,
to complete or make sufficient progress on the work in a timely and professional manner, it is
determined that Professional Engineer had not so failed, the termination shall be deemed to have
been a termination at will. In that event, the City of Nashua shall, if necessary, make an adjustment
in the compensation paid to Professional Engineer such that Professional Engineer receives total
compensation in the same amount as it would have received in the event of a termination-at-will.

C. GENERAL PROVISIONS FOR TERMINATION Upon termination of the contract, the City of
Nashua may take over the work and prosecute it to completion by agreement with another party or
otherwise. In the event Professional Engineer shall cease conducting business, the City of Nashua
shall have the right to solicit applications for employment from any employee of the Professional
Engineer assigned to the performance of the contract.

Neither party shall be considered in default of the performance of its obligations hereunder to the
extent that performance of such obligations is prevented or delayed by any cause, existing or future,
which is beyond the reasonable control of such party. Delays arising from the actions or inactions
of one or more of Professional Engineer's principals, officers, employees, agents, subcontractors,
consultants, vendors, or suppliers are expressly recognized to be within Professional Engineer's
control.

DISPUTE RESOLUTION The parties shall attempt to resolve any dispute related to this contract as
follows. Either party shall provide to the other party, in writing and with full documentation to
verify and substantiate its decision, its stated position concerning the dispute. No dispute shall be
considered submitted and no dispute shall be valid under this provision unless and until the
submitting party has delivered the written statement of its position and full documentation to the
other party. The parties shall then attempt to resolve the dispute through good faith efforts and
negotiation between the City of Nashua Representative and a Professional Engineer Representative.
At all times, Professional Engineer shall carry on the work under this contract and maintain and
complete work in accordance with the requirements of the contract or determination or direction of
the City of Nashua. If the parties are unable to resolve their dispute as described above within 30
days, the parties’ reserve the right to pursue any available legal and/or equitable remedies for any
breaches of this contract except as that right may be limited by the terms of this contract.

NO DAMAGES FOR DELAY Apart from a written extension of time, no payment, compensation, or

adjustment of any kind shall be made to Professional Engineer for damages because of hindrances
or delays in the progress of the work from any cause, and Professional Engineer agrees to accept

GC Sof 11

To:

From:

Re:

DD. Motion:

Attachments:

Discussion:

City of Nashua, Public Works Division
Board of Public Works Meeting Date: December 20, 2018

David L. Boucher, Superintendent
Wastewater Department

Replacement of Grinder for Primary Digester Recirculation Feed Line

To approve the purchase of one Muffin Monster brand grinder in the amount of
$13,281.91 from JWC Environmental of Santa Ana, CA. Funding will be through:
Department: 169 Wastewater; Fund: WERF; Account Category: 81 Major Capital.

Quoie

The Wastewater Facility uses many grinders throughout the facility to protect expensive
motors, pumps, and other equipment. These grinders take inorganic material and shred
the material to assist it in passing through pumps. One of the grinders that protects the
digester was broken beyond repair and needs to be replaced. The Muffin Monster brand is
what is currently installed and we are recommending an in kind replacement for a cost of
$43,281.91,

ono Env

“Gig

Customer: 6036120

Project:

Quote Number:

Scott Law Quote Date:
Nashua, City Of Terms:
P.G. Box 2019 Pricing:
229 Main Street FOs:
Nashua, NH 03081-2019 Lead Tima:

Us Grinder Serial #:
(603}589-3560

laws@nashuaNh.gov
Nashua, City Of

Customer Service Canter
2606 S, Garnsey Street
Santa Ana, CA 92707 USA
Phone: 949 833-3888

Toll Free: 800 331-2277
Fax: 714 549-4007

47228

12/05/2018

NET 30 DAYS

Valid 60 Days

Origin

3.4 Weeks ARO One Way
Shipping & Handling Included
G010069A-2-1

Ail orders will be billed the applicable sales tax, based on the "ship to address", unless a valid tax exemption
certificate is provided prior to shipment.

Part Number Description aty UnitPrice Extended Price
30D04T-2400 300047-2400-121 Muffin Monster 1 $12,943,50 $12,843.50
11Cam Cutters
4:1 Stack Hardened Alloy STL
Savere Duty Seals
Buna N Elastomers
—, Cork & Rubber Gaskets
C ! Motor Type: Electric
- Less Motor
Less Reducer
Less Spool
Less 12" Unibody Housing
Grinder SN: TBD
Shipping Shipping & Handling 4 $0.06 $0.00
TARIFF Tariff Surcharge i $340.41 $340.41
Recently, the US Government, has implemented the following
trade restrictions:
Section 232, June 1, 2018: Restrictions on steel mili (25%) and
aluminum articles (10%). AH countrles of origin except
Argentina, Australia, Brazil, and South Korea,
Section 301, July 6, 2018 Restrictions on products from China,
25%
The tariff surcharge represents the increased cost of
manufacturing our products as a result of the
governmentimposed trade restrictions.
Please verify serial number is correct,
Sub Total $13,283.91
C) Tax
4 Total $13,283.91

Notes:
1. Please fax or mail a puychase order for the total amount and we can process your order.

THE CITY OF NASHUA “The Cate Cty’

Financial Services

Purchasing Department

December 27, 2018
Memo #19-108

TO: MAYOR DONCHESS
FINANCE COMMITTEE

SUBJECT: CONTRACT FOR GAS TANK EVALUATION (VALUE: $18,820)

DEPARTMENT: 169 WASTEWATER: FUND: WASTEWATER-COLLECTION
Please see the attached communication from David L. Boucher, Superintendent Wastewater Depariment
dated December 20, 2018 for the information related to this contract.
Pursuant to § 5-78 Major purchases {greater than $10,600) 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 Department, the Board of Public Works (December 20, 2018 meeting)

and the Purchasing Department recommend the award of this contract in an amount of $18,820 to
McDermott-CBI Services of Plainfield, iL.

SA, oe

“4 “Dan Kobken
Purchasing Manager

Cc: D Boucher L Fautuex

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

C

To:

From:

Re:

H. Motion:

Discussion:

City of Nashua, Public Works Division

Board of Public Works Meeting Date: December 20, 2018

David L. Boucher, Superintendent
Wastewater Department

Gas Tank Evaluation

To approve the inspection and evaluation of the gas holding tank for the anaerobic
digester with McDermott-CBI Services of Plainfield, IL in an amount of $18,280.
Funding will be through: Department: 169- Wastewater; Fund: Wastewater;
Account Category: 54 Property Services.

The Anaerobic Digester at the Wastewater Facility produces methane gas as a
byproduct of the digestion process. This gas is stored in a large gas holding tank
(35 feet high, 25 foot diameter) which is necessary to provide a constant flow and
pressure for the boilers and generators that run on digester gas.

The tank is failing to trap gas and maintain pressure. Wastewater personnel
opened the side hatch and determined the inner diaphragm appears to be sagging
on the opposite side af the vessel, however, could not enter inside the tank to
inspect further due to gas levels.

Wastewater reached out to several companies to evaluate the inside and outside of
the tank, Only McDermott and HEI were found to be qualified and submitted the
following prices:

McDermott $18,280
HEI $140,000

HEI included the additional cost to purge the methane gas, making the tank safe
for entry, McDermott did not, however the Facility has been quoted a reasonable
price through ACV Environmental and will hire them through a separate contract.
We are recommending McDermott perform the evaluation of needed repairs, in
order to have the repairs quoted and work completed by August of 2019, when the
Energy Recovery Generators are scheduled to be finished,

CBI Services, LLC
14107 5. Route 59
Plainfield, IL 60544-8984

MCDERMOTT, Tel: +1 815 439 422

Fax. +1 815 439 6001
Email: Jarnes.Barry@mcdermott.com

December 21, 2018

City of Nashua
9 Riverside Street
Nashua, NH 63062

Attention: Mr. William Keating Via Email: KeatingWi@nashuanh.gov
PH: (603)589-3588

Subject: Inspection — Site Visit
Gashoider

CBI Services, LLC
CBI Services Reference Ne. 239822

Dear Mr. Keating,

As discussed earlier, CBI Services, LLC (CB&I) is pleased to provide you this proposed scope of work for
the inspection of the existing gasholder at the Nashua Wastewater Treatment Facility. It is our
understanding that the above referenced gasholder is in need of an inspection and investigation to
determine cause of loss of pressure, along with the possible design, procurement and installation of a
new diaphragm.

One CB&l engineer from Houston and one project manager from Newcastle will travel to site, perform the
inspection and provide a written inspection report, which includes visual evaluation, photographs,
recommendations for further inspection and/or recommendations for repairs and retesting.

The detailed scope of work is enclosed as Exhibit A. Our commercial clarifications and typical

terms and conditions for inspection services is included in Exhibit B. We have assumed that this

work will be performed on a Fixed Price Lump Sum basis including travel expenses.

Inspection timing is to be mutually agreed. We would expect to have the report complete on or

before two (2) weeks after the site visit. The total price is fo be as outlined in Exhibit B. Any

necessary procurement or repairs would need to be handied under a separate agreement.

Please feel free to contact us at any time to discuss this inspection plan further as needed.

Sincerely,

CBI Services, LLC

James Barry

Commercial Manager
CB&l Storage Tank Solutions

Exhibit A - Scope Of Services
Gas Holder inspection

»MCDERMOTT,

CB&l Services LLC (CB&I) Nashua Wastewater Treatment Facility
Document Title: Inspection Plan for Gas Holder
Document No: 239822-000-SP-PL-00001
Revision: 0
Issue Date: 21 DEC 2018
CB&i Contract No: 239822

Preliminary Issue 0 21-DEC-2018

Revision Descriptions Rev Date Originator | Checker Approver

Page 1 of 4

"THIS DOCUMENT IS THE PROPERTY OF CHICAGO BRIDGE & IRON COMPANY (CB&I). IT MAY CONTAIN INFORMATION
DESCRIBING TECHNOLOGY OWNED BY CB&il AND DEEMED TO BE COMMERCIALLY SENSITIVE. IT IS TO BE USED ONLY IN
CONNECTION WITH WORK PERFORMED BY CB&l. REPRODUCTION IN WHOLE OR IN PART FOR ANY PURPOSE OTHER THAN
WORK PERFORMED BY CEB&i IS FORBIDDEN EXCEPT BY EXPRESS WRITTEN PERMISSION OF CB&I. IT IS TO BE SAFEGUARDED
AGAINST BOTH DELIBERATE AND INADVERTENT DISCLOSURE TO ANY THIRD PARTY,"

Exhibit A - Scope Of Services

MCDERMOTT. Gas Holder Inspection
A

Document Titie: Document No. Rev:
Inspection Pian for Gas Holder 239822-000-SP-PL-00001 G
Table of Contents

Contents Page
1.0 INTRODUCTION .......-cccessstseseseeeseesstsansaesaneeeneccensseeesnenensccnesceesareesenaensuessuenenurunuessspssunensestanssensaunsarasenes 3
2.0 PURPOSE... 00... cccseecsecesneeceseee ee eneensneecesnanesseneanessennenesneananspngnasspeneieddueeeserssuaserersnensaseseanaedegantveresseeses 3
3.0 REFERENCES .........e:scccesscsserssnesesenseensensssuesenneussecesancenseccesseeeseenensccersenesnenegesenueasurusagaeseanmrssuessaansaesenes 3
4.0 PREPARATION OF GAS HOLDER FOR INSPECTION..........sesccsussescsssesssvssnsssnscsausncuecauerensnsnacenessessenes 3
4.1. Prior to CB&I Personnel Arrivall..........:1..cssccccessseessessecessssseessnnnnevensneeevedueeseessaneneassneenerseanensanesune 3

4.2 Prior to Inspection Start............ccccecseesceeeeeeneeeneeeeeseneeuseusasdesenenseagesaecauaseasessteseseeeawansusn 3

5.0 SCOPE OF VISUAL INSPECTION ........ccsccssscessseussseecceeceessnenserenneeseecenepreceveueverusieseunesapusanssusasnsesnnevese 4
5.1 Tank Shell INSPe@ction ......0.....2.-:eccceeeceeeseeeeeeeseeceeesaneneeesananessneessensnneeemensnenssesssnenenesaneenanieeusenessuss 4

5.2 Tank Roof Inspection... ce .eeccccsssseeseseseesveneveeeususseecnscesecceesanesseneenenenenneeatunessrunurasaresaneeanenenassnes 4

5.3 Tank Bottom InSpection..........2-.:ccccesseccceeeeeesesnecensenseensseseuessneacneesseansnessneasansneneneesseeesedanuperenesenes 4

5.4 Shell Appurtenance Inspection ..........:sseecssscessssseecsescsessssesaesssnenaneseensnersuacssersspersessanensaensanes 4

5.5 PISTON SySten 1.1.0. ceecesee eee ceeseeeeeee see eesaneeeneneacnsnpennenssauseusueussessanecseessacecaeesqnanauenenenesdteeerseaseres 4

6.0 INSPECTION REPORT uw .ssssssssssssucsscsssnssensscesssereserssnsesnessnsnansnsnacensuedaacenscesscsesceaseesscessuceressiervaraseras 4
7.0) ENGINEERING EVALUATION. ........2...2::cccccscessseseseserssoessasseussensresnensnessannnneqepeanneneuensuasseesenesersnensesaens 4

Page 2 of 4

,MCDERMOTT,

Exhibit A - Scope Of Services
Gas Holder Inspection

Decument Title: Document No. Rev:
Inspection Plan for Gas Holder 239822-000-SP-PL-00001 6
1.0 INTRODUCTION

2.0

3.0

4.0

4.1

4.2

This inspection plan identifies the scope of the work to be performed by CB&l Services, LLC (CB&I) to
evaluate the state of the 9400ff* gasholder located at City of Nashua Wastewater Treatment Facility in
Nashua, New Hampshire. This tank was originally constructed by CB&l in 1999.

PURPOSE

The purpose of the inspection is to provide technical support to prepare the gasholder for inspection and
possible repair.

The on-site technical support will be performed in accordance with industry standards and CB&l
requirements. Ali support work will be performed by qualified individuals, and the evaluation performed by
a professional engineer experienced in AP] 650 aboveground tanks.

REFERENCES

The following references will be utilized for the inspection and subsequent report:

API 650 Welded Tanks for Oil Storage

API653 Tank Inspection, Repair, Alteration, and Reconstruction — Fourth

Edition Addendum 3 November 2013

PREPARATION OF GAS HOLDER FOR INSPECTION

Prior io CB&/i Personnel Arrival
The following steps are to be completed by others prior to the arrival of CB&I on site:

Gas holder is to be cleaned and certified gas free

Safe access around the tank provided

Elevation of the piston is in the maintenance position

Remove ail bio-solids and sludge buildup that may be present under the piston
Physically isolate the tank from the balance of plant

Prior to Inspection Start
The following steps are to be completed by CB&I prior to the start of the inspection:

* Personnel to use appropriate PPE: Hard Hats, safety glasses, gloves, safety toed boots, long sleeve
shirts, and long pants

° Check isolation plan

* Confined Space Entry:

Page 3 of 4

Exhibit A - Scope Of Services
Gas Holder Inspection

;-MCDERMOTT,

Document Title: Document No. Rev:

inspection Plan for Gas Holder 239822-000-SP-PL-00001 0

5.0

5.1

5.2

5.3

5.4

5.5

6.0

7.0

a. Label tank at manholes with “Confined Space” signage

b. The tank is considered confined space for entry until atmosphere is checked and confirmed
for acceptable levels of Oz, CO2, CO, and H25. CB&I will moniter and evaluate the tank
atmosphere for acceptable levels,

c. After confirming atmosphere is acceptable for entry and confirming the Isolation Plan is in
place, proceed with Non Pemnit Confined Space entry, hole-watch not required

SCOPE OF VISUAL INSPECTION

Tank Shell Inspection

Perform shell visual inspections on the inside and outside of the tank of any accessible exposed areas of the
shell. Any areas that show excessive amounts of corrosion or any shell distortions shall be measured and
documented. Also document any temporary lugs, weld scars or lap welded patch plates if present.

Tank Roof Inspection
Perform visual inspection of the exterior of the roof. Note any signs of damage, distortion, and corrosion.
Document any temporary lugs, welds scars, or lap weld patch plates

Tank Bottom inspection

Perform a through visual inspection of the tank bottam plate surfaces and bottom lap welds, documenting
any areas that show signs of damaged coatings, leaks, excessive top side corrosion, surface deformations,
cracks, laminations or weld flaws.

Note that access to the tank bottom is limited when the piston in in the maintenance position and that the
inspection may be required to take place by viewing through the piston manhole.

Shell Appurtenance Inspection

Visually inspect all shell appurtenances outside of the tank including shell nozzles, manways, ladders, level
gages, instrumentation, pressure relief, and stairways. Document any damage such as cracks, shell
deformations due to excessive piping loads or excessively pitted members. Visually inspect all shell
appurtenances from the inside of the tank including shell nozzles, manways internal piping, level gages and
ladders. Document any damage such as cracks, shell deformations due to excessive piping loads or
excessively pitted members

Piston System
Visually inspect ali parts of the piston system including pulleys, shafts, cables, counter weights, piston, and
seal diaphragm. Document any damage that may inhibit the proper operation of the piston system

INSPECTION REPORT

The inspection report will include a summary of the inspection findings, photographs and a completed
inspection checklist. Any recommendations for repair or further inspection will be included in the report.

ENGINEERING EVALUATION

An engineering evaluation will be performed based on assessing the results of this inspection te determine
if the tank and foundation are structurally sound and are suitable for service. In addition, the engineering
evaluation will provide recommendations for the repairs to the tank, foundation, and provide quidance for
retesting the tank.

Page 40f4