Search

Monthly Report Template

Jackson Mills
Monthly Operations and Maintenance Report — 9/1/2016 — 9/30/2016

Generation this month: 12,004 kWh Historical September Generation:
159,897 kWh

Year to Date: 2,334,586 kWh Historical Average YTD
3,318,547 kWh

Shut down / outage report:

All outages were low river flow related

All Maintenance was completed during low river flows

River flows are regulated from a project in Pepperell, MA and are running well below the

80 year average. The Nashua turbine is not designed to run below a sustained 155 c.f.s.
river flow for Run-of-River (ROR) operation.

USG5 61696568 NASHUA RIVER AT EAST PEPPERELL, HA

368

200 |

168

Discharge, cubic feet per second

Ny
oH rc
28
Sep Sep Sep Sep Oct
3 16 1f 24 61
2616 2616 2616 2616 2616

---= Provisional Data Subject to Revision ----

* Median daily statistic (88 years} —— Discharge

Maintenance or repairs performed:

Troubleshoot the head gate hydraulics solenoid failure.

32

Purchased two solenoids. One for use and one for spare purposes.

Troubleshoot and replace blown capacitor breaker fuse.
Working on purchasing spare fuses. Still not ordered at this time will be ordered in
October with delivery expected in Late October or early November.

Cooling water sand filter has required significant work. The baffle in the housing failed
and then the sand-filter stainless steel container seam split. Considering modification of
the system to allow removal of the sand filter. Installation of an auto-backflush of disk
filters will be required at a cost of ~$3,500 and we would want to increase the disk filters
to a two inch size (from one inch). All in the cost for this modification would be ~
$5,000 in parts and plus labor. A new sand-filter ss container runs approximately $8,000
plus a similar labor component as the modification. Guessing the labor component would
be 32 man-hours for the labor in either repair.

Troubleshooting the air compressor HMI video SCADA panel. Labor only
Installed a PLC control program to run the Air Compressor on a longer and more regular
basis. The purpose is to remove the moisture from the compressor and tank. Ingersol

Rand’s option to perform this service and operation was not cost effective.

All other standard maintenance was performed per our work order system (see attached

summary)

Regulatory:

FERC/NHDES dam inspection and Dam Safety & Surveillance Monitoring Plan
(DSSMP) modifications. Modified the DSSMP to include FERC requirements. Started
working with H.L. Turner for final drawings for inclusion with the DSSMP and DSSMR.
New approved DSSMP and DSSMR’s required by March 2017.

Started working on additional FERC exhibit documents and exhibit drawings. Working
on RFP for H.L. Turner and Hayner-Swanson to modify “Exhibit G” drawing.

Notes and observations:

October:
Secure the upstream fishway passages for winter season
Complete the Cooling Water system modifications for fall and winter operation.
Order the spare capacitor breaker fuses

Work on modifying the Exhibit drawings and documents for FERC submission

33

APPENDIX D
PROJECT AGREEMENTS

For both Jackson Mills and Mines Falls:
FERC license or license exemption
Interconnection agreement

NPDES or HYDRO GP permit, as required
NHDES water user registration and reporting
ISO-NE forward capacity market registration
NH PUC certification as REC eligible facility
Emergency Action Plan

Jackson only:
LIHI certification

Mine Falls only:
Power purchase agreement

34

Schedule 8.7
Items owned by operator but stored at the Jackson Mills location
1. One backup portable generator

2. Two ten tons screw jacks used for turbine work
3. Oxygen and acetylene tanks, regulator and cutting torch

35

>) THE CITY OF NASHUA "The Gate City"

Financial Services

Purchasing Department

November 10, 2016
Memo #17-075

TO: MAYOR DONCHESS
FINANCE COMMITTEE

SUBJECT: PURCHASE OF DIGESTER HEAT EXCHANGER (VALUE: $37,600)
DEPARTMENT: 169 WASTEWATER; FUND: WASTEWATER

Please see the attached communication from Noelle Osborne, Wastewater Department Operations
Supervisor, dated October 27, 2016 for the information related to this purchase.

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 Wastewater Department Operations Supervisor, Board of Public Works (10/27/2016 meeting) and
the Purchasing Department recommend this purchase in an amount of $37,600 to Alfa Laval inc. of
Richmond, VA.

Respectfully, -

OO &
( an Kodken
Purchasing Manager

Ce: N Osborne L Fauteux

229 Main Street e Nashua, New Hampshire 03061 e Phone (603) 589-3330 e Fax (603) 589-3344

To:

From:

Re:

B Motion:

Discussion:

City of Nashua, Public Works Division

Board of Public Works Meeting Date: October 27, 2016

Noelle Osborne, Plant Operations Supervisor
Wastewater Department

Digester Heat Exchanger

To approve the purchase in the amount of $37,600 from Alfa Laval Inc. of
Richmond, VA to supply one digester sludge heat exchanger (Asset ID:
PDSHX2) for the primary digester. Funding will be through Department: 169
Wastewater: Fund: Wastewater; Account Classification: 71 Equipment.

The heat exchanger located at the base of the primary anaerobic digester transfers
heat from the boiler to the solids in the digester. This maintains the temperature of
the digester to an optimal 99 degrees, which is best for decomposition of the
solids and for gas production. The function of this digester reduces the volume of
solid waste to the City by approximately 60%. It additionally allows us to classify
our solids as “Class B” meaning we can land apply. Both of these are cost savings
to the City. Currently this heat exchanger has no redundancy. The one online,
which was purchased in 2011, developed a leak this year that was, fortunately,
repairable and was welded. If this were to fail, the lead time on this product is
close to five month and would have an astronomical financial impact to the City
of Nashua

For these reasons, the Wastewater Department is proposing to purchase a second
heat exchanger to have on hand in the event of failure. The new exchanger must
match the size and capacity of the existing heat exchanger. Hence Alfa Laval is
being sole sourced for this purchase.

September 2, 2016
Alfa Laval Quote No. USRIMPL-1558

Alfa Laval inc.
§400 Intemational Trade Drive
Richmond, VA 23231

Tel: +1 804- 222-5300
Fax: +1 804-236-1364
www.alfalaval.com

Subject: Nashua, NH WTP
Sludge Spiral Heat Exchanger

Alfa Laval is pleased to provide this budgetary quotation for Spiral Heat Exchanger for the referenced
Project.

Sludge Spiral Heat Exchanger
Alfa Laval Sludge Spiral Heat Exchanger with 150 ft? surface area, drop in replacement for Serial
No. 30112-68233.

Budget Price: $37,600 (for quantity one)

e Material of construction is carbon steel SA-516-70.

e Unit will be designed, Fabricated, Tested and Stamped in accordance with the ASME code
Section Vill, Div 1.

Qty. (2) 6” Carbon Steel 150# Flange, Sch. 40 Sludge Inlet and outlet nozzles.

Qty. (2) 6” Carbon Steel 150# Flange, Sch. 40 Hot Water Inlet and outlet nozzies.

1° Sludge continuous coil channel spacing with no obstructions (pins) through the sludge
channel. Tangential sludge entry to promote even disbursement of sludge across channel.
Qty. (1} Hinged cover for easy access to sludge channel. The water side is welded closed.
Qty. (1) 4” Cleanout port for easy access to sludge inlet.

Qty. (2) 2” NPT Backflush connections on Sludge connnections

Qty. (8) %” 3000# couplings (provisions for pressure and temp. gauges/sensors).

1 — 3/8” 3000# coupling drain per hot water channel spiral winding.

Qty. (1) 1” 3000# coupling sludge side drain located at the lowest point in cover.

Qty. (1) Hardcopy of approval drawing or electronic submittal and transmission.

Qty. (1) Hardcopy of standard format data book and e-mail submission.

Standard packaging for covered indoor storage up to 12 months.

Standard paint system. Surface preparation includes sandblasting in accordance to SSPC-
SP-6. External carbon steel surfaces, except machined surfaces of flanges, painted with

VJ
go

International Interlac 789 (single component modified alkyd primer/finish), 4.0 mil minimum, in
Alfa Laval blue.

Not included in our pricing under this scope are the following:
e Piping, Valves, Temperature or Pressure Gauges
insulation
Anchor bolts
Field pressure tests
Field performance tests
Taxes, Bonds
Unloading at job-site
Installation
Field applied paint

Shipment: 15-16 Weeks after receipt of approved drawings.
Approval drawings shall be submitted 4 weeks ARO

Validity: Price is valid for 60 days
Terms: Subject to Alfa Laval Standard Terms and Conditions
Payment: 100% at shipment, Net 30 days from invoice.

Freight: FOB Jobsite. Freight is included in price.

WARRANTY STATEMENT
1. Warranty is twelve (12) months from startup or eighteen (18) months from shipment, whichever
occurs first. Our warranty is for replacement parts only. Labor for installation is the
responsibility of the owner. Alfa Laval will provide supervision at its sole discretion for
replacement of major parts that fail under the warranty period.
2. Alfa Laval considers the equipment accepted and the warranty to begin:
Upon beneficial use of the equipment, or
Upon written acceptance of the equipment by the Owner, whichever comes first.

Thank you for this opportunity to provide our proposal for this project. Please feel free to contact me
at the number shown below should you have any questions.

Best Regards,

Michelle Peel

Alfa Laval, Inc.

Process Technologies Division Sales Engineer
Ph: 804-545-8319

E-Mail: michelle. pee!@alfalaval.com

www.alfalaval.com

REPORT OF THE FINANCE COMMITTEE
NOVEMBER 2, 2016

A meeting of the Finance Committee was held on Wednesday, November 2, 2016, at 7:00 p.m. in the
Aldermanic Chamber.

Mayor Jim Donchess, Chair, presided.

Members of the Committee present: Alderman-at-Large Mark S. Cookson, Vice Chair
Alderman-at-Large Lori Wilshire
Alderman-at-Large Michael B. O’Brien
Alderman Benjamin M. Clemons
Alderman June M. Caron
Alderman Ken Siegel

Also in Attendance: Mr. Dan Kooken, Purchasing Manager
Mr. Brain Sojka, Fleet Supervisor, Nashua Police Department
Captain EZ Paulson, Police Services Bureau
Mr. David G. Fredette, Treasurer, Tax Collector

PUBLIC COMMENT - None
COMMUNICATIONS

From: John Griffin, Chief Financial Officer/Comptroller
Re: Notification of Entry into Contract with a 3° Party Supplier for Electricity Supply

MOTION BY ALDERMAN SIEGEL TO ACCEPT, PLACE ON FILE AND, CONTINGENT UPON BOARD OF
ALDERMEN APPROVAL, RATIFY THE MULTI-YEAR CONTRACT WITH CONSTELLATION NewENERGY
AT A FIXED PRICE OF $0.07010 PER KILOWATT-HOUR

ON THE QUESTION
Alderman O’Brien

On page 10 what! see here is that we currently have the skate park which is down off of East Hollis Street and
it’s listed on this agreement. | think as we move on in the future we are moving that to a different location in
the city and would this agreement follow that pricing?

Mayor Donchess
| think it would although we can get that confirmed.

Mr. Kooken

I’m sure it would.
Alderman Siegel

The only question | have is this is the energy rate and it doesn’t include any of the transmission costs or
delivery rates that are typical of the energy bills that we get. How does that work out, is it the same cost and is
it billed through PSNH?

Mr. Kooken

| don’t know.

Finance Committee Page 2
November 2, 2016

Alderman Siegel

Okay because at least on the residential bills the energy cost is actually only one component and it’s not even
the largest often.

Mayor Donchess

| believe this is the total bill for the purchase of this amount of power but we can confirm that.

Alderman Siegel

I’m in favor of having a discounted power supply but it would just be nice to find out what’s going on with the
rest of it.

Mayor Donchess

Okay, no problem. We will report to the committee on that.
MOTION CARRIED

From: Bruce Codagnone, CIO/IT Division Director
Re: Purchase of Radio Systems Fiber Optics Installation

MOTION BY ALDERMAN SIEGEL TO ACCEPT AND PLACE ON FILE

ON THE QUESTION

Alderman Siegel

At the prior meeting there was an issue with the contract regarding what would happen if a splice was found to
be deficient in testing. There was no remedy listed in the contract and all this does is correct that. There is no
a remedy listed.

MOTION CARRIED

From: Dan Kooken, Purchasing Manager
Re: Proposal from Ospreyowl Environmental, LLC, for Oversight Services for the Wastewater
Treatment Plant (Value: Not-to-Exceed $45,000)

MOTION BY ALDERMAN SIEGEL ACCEPT, PLACE ON FILE AND AWARD THE CONTRACT TO
OSPREY-OWL ENVIRONMENTAL, LLC, IN AN AMOUNT NOT-TO-EXCEED $45,000. FUNDS ARE
AVAILABLE IN DEPARTMENT 169 WASTEWATER

MOTION CARRIED

From: Dan Kooken, Purchasing Manager
Re: Purchase of Replacement Police Vehicles (Value: $462,575)

MOTION BY ALDERMAN SIEGEL TO ACCEPT, PLACE ON FILE AND AUTHORIZE THE PURCHASE
FROM M-H-Q MUNICIPAL VEHICLES FOR A TOTAL AMOUNT OF $462,575. SOURCE OF FUNDING IS
DEPARTMENT 150, POLICE; CERF