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Ta:

From:

Re:

C. Motion:

Discussion:

City of Nashua, Public Works Division
Board of Public Works Meeting Date: September 26, 2019

David L. Boucher, Superintendent
Wastewater Department

Energy Recovery Upgrade — Methuen Construction Change Order #2

To approve Change Order #2 to the Energy Recovery Upgrade contract with Methuen
Construction Company of Plaistow, NH in an amount not to exceed $21,181.16 for new
lighting and painting in the energy recover room. Funding will be through: Department:
169- Wastewater; Fund: Wastewater; Activity: Energy Recovery Upgrade Project.

The energy recovery upgrade project involves upgrading all the major components in the
energy recovery room with new generators, piping, heat exchangers, pumps, controls and
associated electrical components. These upgrades are needed since the existing generator
had failed and the other components are beyond their useful life. The project was
awarded to Methuen Construction in December 2018 in the amount of $1,787,378.

Change order 1 was for relocating an expansion water tank and bring electrical
disconnects adjacent to 3 hot water pumps in the boiler room in an amount of $16,742.40.
The new contract total is 1,804,120.40. Change order 2 is for painting and providing new
lighting for the entire energy recovery room in the amount of $21,181.16. This change
order is needed since the energy room has never been painted since constructed in 1999
and existing painted walls have become soiled. The room also has poor lighting making it
a dark room with no windows. New bright LED lighting will allow for safer and better
working conditions.

The new contract value following this change order will be $1,825,301.56

WALDRON ENGINEFRIMG & OC

Lee

NS TREUCTION. INC.

To: William Keating, P.E., Project Engineer, Nashua Wastewater Treatment Facility
From: Erich Gustenhoven, P.E., Resident Engineer, Waldron Engineering &
Construction, Inc.
Date: September 17,2019
Re: Change Order Request Review 005&006
NWWTF Energy Recovery Upgrade Project
Attachments: Methuen Construction PCO #005-Lighting
Methuen Construction PCO #006-Painting
Mr. Keating:

Waldron has reviewed the additional work associated with the owner request to install new
lighting and repaint the engine room in the Energy Recovery Building. These tasks were covered
by two separate contractor change order requests; detailed reviews for each have been provided to
Nashua. Below is a summary for your use.

Summary Review - Lighting
Original Schedule Schedule Direct Schedule Schedule Claim
Adjustment claim Impact Assessment Recommended
None none n/a 0 days
Original Cost Cost Adjustment Direct Cost Impact Cost Adjustment
claim Assessment Recommended
None $4,002.86 54,002.86 54,002.86
Summary Review - Painting
Original Schedule Schedule Direct Schedule Schedule Claim
Adjustment claim Impact Assessment Recommended
None none na 0 days
Original Cost Cost Adjustment Direct Cost Impact Cost Adjustment
claim Assessment Recommended
None $17,178.30 $17,178.30 $17,178.30
Conclusion

Waldron recommends approving a total of $21,181.16 for both claims as noted above and
approving Q days of schedule relief.

If you have any questions on the above, please don’t hesitate to contact me at 603-772-7153 x
148 or egustenhoven@waldron.com

Sincerely

Waldron Engineering & Construction, Inc.

Erich L.
Gustenhoven

Digitatly signed by Ech L
Guslenhoven
Date: 2019.69.17 02.48.03 D400"

Erich L. Gustenhoven, P.E.

a? INDUSTRIAL ORIVE =SUTEG-1 EXETER.NKOS833 (603) 772-7153

WALDRON CO

Doc #: PCO NO 005
Industral
re ctincirs Ref. Document:
PROJECT NAME: Energy Recovery Upgrade IFBOSO1- Date: 26-Aug-19
090618
PROJECT NO: 181012
PHASE
COST SUMMARY SHEET
Lighting Change
A MC Labor (Recap Sheet): $0.00
B McC Materials, & Equipment (Recap Sheet): $0.00
CG MC Fee (A x 15%} + (B x 10%): $0.00
D Subtotal MC Work (A+B+C): | $ -
E Total Subcontractors (Below): $3,737.50
F Mc Mark-up on Subcontractor Work (5%): | $ 186.38
G Bond (1%) and General Liability (1%): $78.49
Total Proposal (D+E+F+G): $ 4,002.86

SUBCONTRACTOR SUMMARY
Description
Lighting Change

$
$
3
5
3
3
$
$

Total Subcontractors:

Amount
3,737.50

3,737.50

Lighting Change

Scope: Remove and replace lighting in Generator room per attached Ell quote.

1-LABOR
CATEGORY HRS RATE/HR PREMIUM SUBTOTAL —_ LINE TOTAL TOTAL
DENT 00
ECT R $0,00
$0.00
$0.00
$0.00
$0.00
$0.00
$0.00
SUBTOTAL $0.00
2-MATERIALS
DESCRIPTION QTy UNIT UNITCOST SUBTOTAL
5 “ $ -
$ - $ -
i
SUBTOTAL 5 -
3-EQUIPMENT
CATEGORY HRS RATE UNIT SUBTOTAL
EXCAVATOR PC300 $180.35 HR $0.00
EXCAVATOR CAT 330 $100.37 HR $0.00
EXCAVATOR CAT 320 558.74 HR $0.00
DUMP TRUCK $61.23 HR $0.00
FOOL TRUCK $47.00 HR $0.00
FRONT END LOADER $66.40 HR $0.00
DOZER $54.42 HR $0.00
COMPACTOR (WALK BEHIND) $35.88 HR $0.00
ROAD SAW $35.88 HR $0.00
HYDRAULIC BREAKER $45.51 HR $0.00
CAT 420 BACKHOE $41.49 HR $0.00
FORKLIFT LULL $30.01 HR $0.00
COMPRESSOR 185CrM $15.08 HR $0.00
PICKUP TRUCK $13.00 HR $0.00
CORE DRILL $120.00 DAY $0,00
SUBTOTAL 30.00

Page 2 of 3 8/26/2019 - 7:54 AM

Lighting Change

Scope; Remove and replace lighting it Generator room per attached Ell quote.

9-TOTAL (Item 8 + Bond + General Liability)

4-SUPPLEMENTAL COSTS
DESCRIPTION QTY RATE UNIT SUBTOTAL
Conditions $30,000.00 MONTH $0.00
$0.00
STING 00
ENGINEERING .
$0.00
VEL 0
FACILITIES 20
$0.00
ICE & WATER 20
FUEL .
$0.
ELECTRICITY $0.
FFICE EQUIPMENT
$0,
SUBTOTAL $0.00
S-BURDEN
CATEGORY RATE
BURDEN RATE 34.00% $0.00
6-GC WORK TOTAL
SUBTOTAL (Item 1+2+3+4) $0.00
7-SUBCONTRACTORS WORK
SUBCONTRACTOR UNIT COST QTy COST TOTAL
3,737.56
SUBTOTAL $3,737.50
8-FEE
GC (15% X lftems 1&5 + 10% X Items 22344 + 5% X Item 7} $186.88
8-SUBTOTAL $3,924,398
BOND (1% X itemé) $39.24
GENERAL LIABILITY (1% X item 8} $39.24

$4,002.86

Page 3 0f 3

8/26/2019 - 7:54 AM

Electrical
. Installations, Inc.

Enginvering -Construction-Cantral Systems
snsctisumanneehenters NH

MAIN OFFICE

397 Whittier Highway
Moultonboro, NH 03254
603-253-4525

FAX 603-253-6284

BRANCH OFFICE

9308 American Legion Hwy
Westport, MA 02790
508-636-8600

FAX 508-636-8650

VT License EM-2667 ME License 7908 NHLicense 460 MA License 221MR

Potential 004

1929 — Nashua, NH - WWTF Engergy Recovery

Subject: 10 LED 4' Vapor tight lights in generator

Upgrade room. Option 1
To Eric Delisle Contract No: 181012-5-001
Methuen Construction Number: 1929-CO-004
144 Main St Revision Number: 0
PO Box 980 Date: 7/22/2019
i Price / Do Not
Plaistow, NH 03865 Work Type: rice / Do No
603-328-2222 Proceed
Days Valid: 5
Return To Chuck Fritz

Electrical Installations, Inc.
245 Charlotte Street
Manchester, NH 03103
603-520-0513

935-7862 (FAX)

chuck. fritz@eli-hq.com

Comments / Time Extension Request
This is for the replacement of light to go in the same location. No new conduit or wire.

Details

001 00-Flectrical Field | Electrician Labor $95.00 8.00 2.00! $1,520.00
Labor Onsite rs
2—Instrumentation | Engineer 0.00

002 Lab 110.00 0.00 0.
Field Labor Onsite | Programmer abor 5 drs 90.00

0.00

003 5—Panel Shop Panel Shop Labor $65.00 Hrs 0.00 $0.00
4—Submittals/ORM's 1.00

004 Clerical Lab 55.00 1.00 55.00
/Clerical/Office erica amor : Hrs >

: 2-LD5-4-
005 *EP*-Entire Project P/N: 4VT2-LDS Material $150.00 10.00 - | $1,500.00

DR-UNV-
L835-CD1-WL-U

Light Fixtures

006 *EP*-Entire Project | Conduit Parts Material $175.00 1.00 -| $175.00
Breakout
Labor : $7,575.00
Gross Margin Percent @ 15%: $236.25
Material : $1,675.00
Gross Margin Percent @ 15%: $251.25
Total: $3,737.50

Reservation of Rights
This price does not include any amount for impacts such as interference, disruptions, rescheduling, changes in the
sequence of work, delays and/or associated acceleration. We expressly reserve the right to submit our request for

any of these items.

Signed By:

Dated: 7/22/2019

Doc #: 6
Ref. Document:

PROJECT NAME: Date: 4-Sep-19
Nashua Energy Recovery Upgrade

PROJECT NO: 181012
PHASE
COST SUMMARY SHEET
Mechanical Room Painting

A Mc Labor (Recap Sheet): $4,282.10
B MC Materials, & Equipment (Recap Sheet): $453.00
Cc MC Fee (A x 15%) + (B x 10%): $687.62
D Subtotal MC Work (A + B+): | $ 5,422.72
E Total Subcontractors (Below): $10,875.00
F MG Mark-up on Subcontractor Work (5%): | $ 543.75
G Bond (1%) and General Liability (1%): $336.83

Total Proposal (D+ E+F+G): § 17,178.30

SUBCONTRACTOR SUMMARY
Subcontractor Description Amount
Arthur Cole painting Pressure Wash and paint the mechanical room

10,875.00

10,875.00

Total Subcontractors:

Mechanical Room Painting

Scope: The below price is the cost incurred to paint Mechanical room, including power washing ceilings, wails, floor and filing unused holes with mortar.

f-LABOR
CATEGORY HRS RATEIHR PREMIUM SUBTOTAL ~— LINE TOTAL TOTAL
$3,195.60
2-MATERIALS
DESCRIPTION aTy UNIT UNIT COST SUBTOTAL
Estimated
Consumables $ 500.00 $ 500.00 $ -
Dumpster / Disposal 3 750.00 $ 750.00 $ -
Mortar 4 5 41.25 $ 45.00
| |
SUBTOTAL $ 45.00
3-EQUIPMENT
CATEGORY HRS RATE UNIT SUBTOTAL
EXCAVATOR PC300 180.35 HR
HR
TRUCK
END LOADER
BRILL
SUBTOTAL $408.00

Page 2 of 3 9/40/2019 - 3:09 AM

Mechanical Room Painting

Scope: The below price is the cost incurred to paint Mechanical room, including power washing ceilings, walls, floor and filling unused holes with mortar.

'4-SUPPLEMENTAL COSTS
DESCRIPTION QTy RATE UNIT SUBTOTAL
T DRAWINGS $0.
SUBTOTAL $0.00
5-BURDEN
CAFEGORY RATE
BURDEN RATE 34.00% $1,086.50
6-GC WORK TOTAL
SUBTOTAL (Item 4+2+344) 34,735.10
7-SUBCONTRACTORS WORK
SUBCONTRACTOR UNIT COST Ory COST TOTAL
SUBTOTAL $10,875.00
8-FEE
GC (15% X Items 1&5 + 10% X tems 28344 + 5% X Item 7) $1,231.37
8-SUBTOTAL 316,841.47
BOND (1% X Item) $168.41
GENERAL LIABILITY (1% X tens 3) $166.41
peor (Item § + Bond + General Liability} $17,178,30

Page 3 of 3 9/16/2019 - 8:09 AM