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C New Hampshire Hydraulics PM of Gate HPU cise ders eeeseewene b,92 00
Consisting of: Draining the 20 galfon accumulator to tank,

Using the NR Hydraulics filter buggy to clear: the oil in the 50 gallon reservoir,
Replace the pressure and return filter elements and the desiccant breather,
Replace existing pilot operated ralief valves and direct acting relie? valves,
Visual Inspection of the hydraulic system for proper operation,
Repair piping leaks with new seals and or teflon tape as applicable,
Estimated down time required for this PM: up ta (4} full day.

New Hampshire Hydraulics PM of Two Rake HPU's ($627.00 each) $1,254.00
Consisting of: Using the NH Hydraulics filter bugey to clean the cil in the 10 gallon reservoir,
Repface the return filter element,
Replace existing pilot operated relief valve with direct acting relief valve,
Visual inspection of the hydraulic system for proper operation,
Repair piping leaks with new seals and/or teflon tape as applicable.
Estimated downtime required for this PM: up to (1/2) day.

QUOLE TOtdl essence 19,956.00 + freight {TBD}

The above prices are net to Nashua Wastewater and are for the quoted Items and scope of work only. As discussed, if
the existing electric wiring to connect the new prox switches on the cylinder is corroded and damaged, Nashua
Wastewater will use their electriclans to replace this wiring. New Hampshire Hydraulics will not be responsible for any
electric wiring. Any additional problems discovered on these hydraulic systems during the installation or PAT wil be
brought te the attention of Nashua Wastewater, New Hampshire Hydraulics will not work to resolve these problems
unti] approval is given to proceed by Nashua Wastewater. The resolution of these additional problems may result in
additional downtime and charges. The lead time required for the cylinder is four to five weeks ARO, The lead time for
hoses and fittings, and the parts for these Piv’s fs one to two weeks ARO,

a

Thank you for your consideration.
Please contact me ar Bill Cunningham If you have any questions.

Best Regards,

nthony Halvatzes
President

THE CITY OF NASHUA “the Gate City’

Financial Services

Purchasing Department

December 27, 2018
Memo #19-107

FO: MAYOR DONCHESS
FINANCE COMMITTEE

SUBJECT: PURCHASE OF REPLACEMENT GRINDER FOR PRIMARY DIGESTER
RECIRCULATION FEED LINE (VALUE: $13,282)
DEPARTMENT: 169 WASTEWATER; FUND: WERF

Please see the attached communication from David L. Boucher, Superintendent Wastewater Department
dated December 20, 2018 for the information related to this contract.

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

The Superintendent Wastewater Department, the Board of Public Works (December 20, 2018 meeting)

and the Purchasing Department recommend the award of this purchase in an amount of $13,282 to
JWC Environmental of Santa Ana, CA.

Res Vogee—

Wee bi
Yan Kobe Manager

Cc: D Boucher L Fautuex

229 Main Street « Nashua, New Hampshire 03061 * Phone (603) 589-3830 « Fax (603) 589-3233

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