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FuLC2G REREEE
CONSTRUCTION

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PCO #023

Bond & Generat Liability: 2.00% Applies to Oiher, Material, Committed Costs, Labor, Rentat Equipment Rollef, Equipment, Subcontracter, and Burden. § 101.40

Grand Total: $5,171.40

Jeremy Smith, PE. (Waldron Engineering
& Construction, Inc.)

37 Industrial Drive Suite G-1
Exeter, New Hampshire 03893

City of Nashua

229 Main Street
Nashua, New Hampshire 03060

Methuen Construction Ca,, Inc.

144 Main Street PO Box 980
Plaistow, New Hampshire 03865

SIGNATURE DATE

Methuen Construction Co., inc.

SIGNATURE DATE

page 2 of 2

SIGNATURE DATE

Printed On; 6/30/2020 02 720 PM

fae Mettuon Doc #: PCO 23
CONSTRUCTION Ref. Document:
PROJECT NAME Date: 30-Jun-20
Nashua Energy Recovery
PROJECT NO: 181012
PHASE
COST SUMMARY SHEET
52U Remote Status Trip Wiring
A MC Labor (Recap Sheet): $0.00
B MC Materials, & Equipment (Recap Sheet): $0.00
c MC Fee (A x 15%) + (B x 15%): $0.00
DB Subtotal MC Work {A+B +C}: | $ “
E Total Subcontractors (Below): $4,564.40
F MC Mark-up on Subcontractor Work (5%, 7.5% or 10%): | $ 405.60
G Bond (1%) and General Liability (1%): $101.40

Subcontractor Description

Totai Proposal (D+E+F+G): §$ 5,171.40

SUBCONTRACTOR SUMMARY

Amount
Ell See altached $ 4,664.40

4,664.40

$
$
$
3
$
$

Total Subcontractors:

WALDRON eMisiNcERING & CONSTRUCTION. INC.

. To: William Keating, P.E., Project Engineer, Nashua Wastewater Treatment Facility
From: Jeremy P. Smith, P.E., Waldron Engineering & Construction, Inc.
Date: July 9 , 2020
Re: Change Order Request Review 025

NWWYTF Energy Recovery Upgrade Project

Attachments: Methuen Construction PCO-025 Fuel train re-build

Mr. Keating:

Waldron has compiled its review based on review of the Owner’s documentation (design
documents, OEM submittals, submittal reviews, RFI responses, and project notes) and the
Contractor’s documentation (RFI’s, Submittals, Reports, issued Change Orders). Specifically;
Waldron has reviewed the issue of additional work associated with the installation of the jacket
water booster pumps. Methuen has previously submitted for the related electrical scope of work.

Summary Review

Original Schedule Schedule Direct Schedule Schedule Claim
Adjustment claim Impact Assessment Recommended
None 10 0 0
Original Cost Cost Adjustment Direct Cost Impact Cost Adjustment
elaim Assessment Recommended
None $2,743.06 $2,743 $2,743

Detailed Review-Base Cost Validity

Methuen has made a claim for the work as required based on RFI responses, submittal reviews
aud Field conditions. The claim is based on their work and their subcontractor’s work resulting
from the above. Waldron has reviewed the design documents, OEM submittals, submittal
reviews, and RFI responses regarding this issue. Waldron has relied on vendor quotes, project
cost estimations, historical project data, RS Means, and its own proprietary cost data to review the
cost validity of the work scope.

The submitted PCO is based on additions to the work encountered in the field around a
tequirement from CAT to accommodate fuel train components of mis-sized (not all one
corresponding size) into a single assembly, While the fuel tian components were listed as a ship
loose item, it is not reasonable that the contractor would understand that those pieces of
equipment would be mis-szied. We also note that CAT was requested to reduce their fuel train
pressure drop to accoiadate the operating profile of the blending skid, and this lead to revised fuel
train component selctions, which were not all available in a full menu of sizes, which elad to the
mis-matched sizes (i.e. it was not logistically feasible to get every component in 2 4")

37 INDUSTRIAL DRIVE SUMEG-1 EXETER.NHO3833 (603) 772-7153 WALDRON COM

ereneess pretiny muti mene fn he pee nen te het nace re Heit eam rr

Mr. William Keating
COR review
W920

The table below summarizes the total value of the work, which will be assessed value of the work
performed at fair market conditions with no deducts or mark-down %.

The claimed cost of work (take the lower of the higher estimate or the claim)

Claimed Cost | Fair Market Value | Allowable Mark-up** | Work Value Assessment
of Work of Work seepe
$2,743.06 $2,500 (includes 15% on MC Work $2,743
materials & 10% on Subs (<$50k)
equipment)* 7-1/2% on Subs ($50-
100k)
5% on Subs (>100k)

*Market Value Assessment-$2,200 to $3,300 (+/- 20%)

Work Value | Deduct Assessment | Mark down by 6% as Total Direct Value
Assessment noted above Assessment

52,743 ($0) $0 $2,743

Detailed Review-Schedule

Methuen made a claim for schedule adjustment but has not provided a CPM (critical path
method) schedule showing how this item moved onto the critical path. Their schedule claim is
therefore evaluated at 0 days. Therefore we recommend 0 days be awarded.

Original Schedule Schedule Direct Schedule Schedule Claim
Adjustment claim Impact Assessment Recommended
None 10 0 0
Conclusion

Waldron has reviewed all the available information, and has taken into consideration the factors
surrounding the issues in question.

Waldron recommends approving $2,743 of the claim as noted above 0 days of schedule relief.

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

Sincerely
Waldron Engineering & Construction, Inc.

Jereuy P. Sinith, PE,
Jeremy Smith, PE.

mh

ethuen PCO #025

Methuen
CONSTRUCTION

Methuen Construction Co,, inc. Project: 181012 - Nashua Energy Recovery Upgrade
144 Main Street - PO Box 960 2 Sawmill Rd.
Plaistow, New Hampshire 03865 Nashua, New Hampshire 03060

Phone; (803) 328-2229

Prime Contract Potential Change Order #025: Fuel Train Fabrication

1: City of Nashua FROM: Methuen Construction Co., Inc.
229 Main Street 144 Main Street PO Box 980
Nashua New Hampshire, 03066 Plaistow New Hampshire, 03865
PCO NUMBERIREVISION: 025/0 CONTRACT: _ 1FB0501-090618 NASHUA PO #146861-

Nashua Energy Recovery Upgrade
CREATED BY: Anthony Crespo (Methuen Construction Co.,

REQUEST RECEIVED FROM:

Inc.}

STATUS: Pending-InReview = = + GREATEDDATE: 6/30/2020
REFERENCE: = SS DATE SENT: eso20z000¢€@«C°~C~C~C~C~C—~S—
FIELDCHANGE: = No ~~~~~”~———:«&BRRIME CONTRACT None

CHANGE ORDER:
a geen vee ont sens ties ues ean ni Lee vee
SCHEDULE IMPACT: 10 days ACCOUNTING Amount Based

METHOD:
PAID IN FULL: No TOTALAMOUNT: $2,743.06

Methuen Construction (MC), hereby submits this PCO in accordance wilh the documentation referenced herein. itis expressly understood and agreed
that this proposal is valid for the time as specified within this decument from ihe date of the PCO. The Proposal Is based upon currant day construction
costs and does not include escalation costs for any material items that are either volatile or market sensitive. This Proposal does not Include overtime
acceleration or expediling costs. This proposal does not include ihe cosls associaied with oul of sequence construction, Interference, impact relafed
delays and disruptions. MC reserves its rights under the agreement to seek additional time, indirect and impact costs associated with the FCO, once the
impacts can be fully evaluated. This proposal Is submitted based on the understanding that itis exempt from WBE/MBE participation requirements and
acceptance of this proposal waives the participation requirements asscclated with this additianal work.

POTENTIAL CHANGE ORDER TITLE: Fuel Train Fabrication
CHANGE REASON: Design Development

POTENTIAL CHANGE ORDER DESCRIPTION: (The Contract fs Changed As Follows)
CE #055 - PCO 25- Fue! Train Fabrication

Scope: Per RFW62, wa were required to fabricate and instali extra pipe and fittings to accommodate the meiric flanged connections on the generator

fuel trains. As a result of this, MC is requasting 10 additional days to be added ta the overall construction schedule due to delays in procurement of
necessary flanges.

ATTACHMENTS:

Burdan Rate
# Cost Cod B ip! Am Subtetat
os * eseription Type eunt {43,00% Appilos te Lagor,) Mente

22-0150 «
PROCESS

1 | PIPING SUBCONTRACTOR cubsontar $2,144.00 $9.00 $2,144.00
INSTALLATI

ON

22.0750 -
PROCESS
2 | PIPING EQUIPMENT Malenal 3 207.72 $0.00; $287.72
INSTALLATI
ON

Methuen Construction Co., Inc. page 1 of 2 Printed On: 6/30/2020 01:44 PM

iMethuern PCO #025
CONSTRUCTION
Subtotal: $2,431.72 $0.00 $2,431.72
GC Work Total Foe - Labor: 15.00% Applies to Labor. $0.00
GC Work Total Fee - Material & Equipment: 13.00% Applies to Other, Matorial, and Equipment. $43.16
GC Subcontractors Wark Fos: 10,00% Appiles to Subcontractor, $294.40
Bond & General Liability: 2.00% Applies te Olkar, Materlal, Gemmitted Costs, Laber, Rental Equipment Relief, Equipment, Subsentractoy, and Burden. 583.78
Geauel Fatal FE TAT AG
Jeremy Smith, P.E. (Waldron Engineering City of Nashua Methuen Construction Co., Inc,

& Construction, Inc.)
37 Industrial Drive Suite G-1
Exeter, New Hampshire 03833

229 Main Street
Nashua, New Harnpshire 03080

444 Main Street PC Box 980
Plaistow, New Hampshire 03885

SIGNATURE DATE

Methuen Construction Co., Inc,

SIGNATURE DATE

page 2 of 2

SIGNATURE DATE

Printed On: 6/30/2020 01 :44 PM

tee

Doc #: PCO 25
Ref. Document:

PROJECT NAME: Date: 30-Jun-20
Nashua Energy Recovery
PROJECT NO:
PHASE
COST SUMMARY SHEET
Fuel Train Fabrication
A MC Labor (Recap Sheet): $0.00
B MC Materials, & Equipment (Recap Sheet): $287.72
G MC Fee (Ax 15%) + (B x 15%): $43.16
BD Subtotal MC Work (A+B+C): | $ 330.88
E Total Subcontractors (Below): $2,144.00
F McC Mark-up on Subcontractor Work (5%, 7.5% or 10%): | $ 214.40
GS Bond (1%) and General Liability (4%): $53.79

Subcontractor

Total Proposal (D+E+F+G): $ 2,743.06

SUBCONTRACTOR SUMMARY

Description

$
$
3
3
$
$

Total Subcontractors:

WALDRON ENGINEERING & CONSTRUCTION. INC.

To: William Keating, P.E., Project Engineer, Nashua Wastewater Treatment Facility
From: Jeremy P. Smith, P.E., Waldron Engineering & Construction, Inc.

Date: July 7" , 2020 (revised)

Re: Change Order Request Review 027

NWWTFE Energy Recovery Upgrade Project

Attachments: Methuen Construction PCO-027 Re-coring Stack#2

Mr. Keating:

Waldron has compiled its review based on review of the Owner’s documentation (design
documents, OEM submittals, submittal reviews, RFI responses, and project notes) and the
Contractor’s documentation (RFI’s, Submittals, Reports, issued Change Orders). Specifically;
Waldron has reviewed the issue of additional work associated with the installation of the jacket
water booster pumps. Methuen has previously submitted for the related electrical scope of work.

Summary Review

Original Schedule Schedule Direct Schedule Schedule Claim
Adjustment claim Impact Assessment Recommended
None 1 0 0
Original Cost Cost Adjustment Direct Cost Impact Cost Adjustment
claim Assessment Recommended
None $1,109 $1,109 $1,109

Detailed Review-Base Cost Validity

Methuen has made a claim for the work as required based on RFI responses, submittal reviews
and Field conditions. The claim is based on their work and their subcontractor’s work resulting
from the above. Waldron has reviewed the design documents, OEM submittals, submittal
reviews, and RFI responses regarding this issue. Waldron has relied on vendor quotes, project
cost estimations, historical project data, RS Mcans, and its own proprietary cost data to review the
cost validity of the work scope.

The submitted PCO is based on additions to the work for re-coring of the existing stack
penetration, which was found in the field to be not plumb. Waldron’s opinion is that the out-of-
plumb core was an unforeseen existing condition which the G.C. could not reasonably have
predicted during the project bid.

37 INDUSTRIALDRIVE §SUITEG-1 EXETER,NHO3833 (603) 772-7153 WALDRGN COM

SEED tate peal te Naira