HomeMy WebLinkAboutContract 49050-CO2 CITY SECRETARY`'
FORTWORTH City of Fort Worth CONTRACT NO. � a 5 a
Change Order Request
Project Name I Riverside WWTP Demo&Sludge Lagoon Excavation&Disposal Project City Sec# 1 49050
Client Project#(s)
Project Description Former Riverside WWTP Demo&Sludge Lagoon Excavation&Disposal Project to demo existing lecacy structures&
excavation,transporation&disposal of contaminated soil from abandoned sludge lagoons
Contractorl L.indamood Demorftn,Inc. Change Order# `____I Date 9127/2017
City Project Mgr.I Stacy Walters City Inspector F Freese&Nichols,Inc.
Dept TPW Water Sewer Contract Time
Totals (CD)
Original Contract Amount $7,698,018.50 $7,698,018.50 270
Extras to Date $50,450.00 $50,450.00 0
Credits to Dale
Pending Change Orders(in M&C Process)
Contract Cost to Date $7,748,468.50 $7,748,468.50 270
Amount of Proposed Change Order $0.00 $0.00 $412,751.75 $412,751.75 90
Revised Contract Amount $8,161,220.25 $8,161,220.25 360
Original Funds Available for Change Orders 1 $0.00
Remaining Funds Available for this CO, $0.00
Additional Funding(if necessary) $412,751.75 $412,751.75
CHANGE ORDERS to DA TE(INCLUDING THIS ONE)AS%OF ORIGINAL CONTRACT 6.02%
MAXALLOWABLE CONTRACT AMOUNT(ORIGINAL CONTRACT COST+25%) $9,622,523.13
JUSTIF10TiON @R SONS)FOR CHANGE ORDER -
Lindamood Demolition encountered settled solids in Sector 1 structures during plant demolition.Freese and Nichols(City design engineer)
sampled the settled solids.Based on analytical results,settled solids from Secondary Clarifiers#2 and#3 require disposal as a TSCA-
regulated PCB waste(PCB>50 mglkg).Settled solids in Secondary Clarifier#1,Final Clarifier 0,and Imhoff tanks require disposal as a
Class 2 nonhazardous waste.
Undamood will excavate contaminated soils from Sector 2 to mix with settled solids to remove excess water for disposal.This requires the
contractor to handle soils twice onsite.An increased unit rate for excavation covers additional handling at a cost of$171,336.Additional
stabilization materials will be purchased to remove the remaining water from the soils.This cost is$37,500. �� M ®`
TSCA-regulated PCB waste excavalion was reduced from 27,845 to 13,883 tons by additional data.Savings on transportation are$1i ••••"•••. pll f
The disposal unit rate for TSCA-regulated PCB waste(commitment letter with Republic Waste Services)was corrected to$80.25 fig' •*�i
increasing disposal by$139,535.75. %* , , . •';'�'��
Encountered settled solids increases transportation and disposal of Class 2 non-hazardous waste to Itasca Landfill from 103,65511TOW
tons.The additional cost is$204,000. ®® . .
rs
It is understood and agreed that the acceptance of this Change Order by the contractor constitutes an accord and satisfaction and represents AL
payment in full(both time and money)for all costs arising out of,or incidental to,the above Chan Order.
Con#a*t's Gump ny`tVame PrItrodor 4NsW
Lindamood Demolition,Inc. M- Tma
InspBct ftspectio ueenrlsor oats tNanagerlPrpgram Wnasw Date,
Date,_ , _ng Department{Dept} e
Assistant CityAttamey_ flats `,:,_ Cth► tfef '_,.r,. �O
# , 7 i •X
,a
M&C NumberI, ved
FT.WORTH,TX T4 .............
�P .
��== L 9S konald P. Gonzales,Ask City Ste►
M&C Review Page 1 of 2
Official site of the City of Fort Worth,Texas
CITY COUNCIL AGENDA FOR_ T�11
DATE: 11/7/201-7 REFERENCE **C-28465 LOG NAME: 60RIVERSIDE WTP
NO.: DEMOLITION CO2
CODE: C TYPE: CONSENT PUBLIC NO
HEARING:
SUBJECT: Authorize Execution of Change Order Request No. 2 with Lindamood Demolition, Inc., in
the Amount of$412,751.75 for Former Riverside Wastewater Treatment Plant Demolition
and Sludge Lagoon Excavation and Disposal Project for a Revised Contract Amount of
$8,161,220.25 (COUNCIL DISTRICT 4)
RECOMMENDATION:
It is recommended that the City Council authorize the execution of Change Order No. 2 with
Lindamood Demolition, Inc., in the amount of$412,751.75 to City Secretary Contract No. 49050 for
Former Riverside Wastewater Treatment Plant Demolition and Sludge Lagoon Excavation and
Disposal Project to include settled sludge removal from clarifiers, for a revised Contract Amount of
$8,161,220.25.
DISCUSSION:
On March 7, 2017, Mayor and Council Communication (MSC C-28147), the City Council authorized
the execution of City Secretary Contract No. 49050 with Lindamood Demolition, Inc. to complete the
final cleanup efforts at Former Riverside Wastewater Treatment Plant. Work continues with
demolition of old plant structures and excavation, transportation and disposal of contaminated soil
from abandoned lagoons.
The old plant structures demolition is almost complete with the exception of four structures with
contaminated solids, the removal of which was not included in this contract. To finalize the Texas
Commission on Environmental Quality(TCEQ) Voluntary Cleanup Program (VCP) requirements, this
contaminated material must be removed and disposed at TCEQ permitted landfill. Material from two
of the structures will require special solids drying techniques prior to hauling solids to meet the landfill
acceptance requirements. A cost of$412,751.75 has be provided by the Contractor to do this
additional work. To complete this work the contract time will be extended an additional 90 calendar
days. The Engineer and City Staff have reviewed the quantities and verified the additional work in this
change order.
On an annual basis, the expense associated with the environmental remediation for Former Riverside
Wastewater Treatment Plant is booked as a liability within the Water and Sewer Operating Fund in
accordance with Governmental Accounting Standards.
M/WBE OFFICE—Lindamood Demolition, Inc., agrees to maintain its initial MBE commitment of six
percent that it made on the original contract and extend and maintain that same MBE commitment of
six percent to all prior change orders up to and inclusive of this Change Order No. 2. Therefore
Lindamood Demolition, Inc. remains in compliance with the City's BDE Ordinance and attest its
commitment by its signature on the Acceptance of Previous Commitment form executed by an
authorized representative of its company.
This project is located in COUNCIL DISTRICT 4.
FISCAL INFORMATION/CERTIFICATION:
The Director of Finance certifies that expenses associated with this contract will be funded from the
liability account and no budgetary impact is anticipated.
http://apps.cfwnet.org/council_packet/mc review.asp?ID=25278&councildate=11/7/2017 11/8/2017
M&C Review Page 2 of 2
TO
Fund Department Account Project Program Activity Budget Reference# Amount
ID ID Year Chartfield 2
FROM
Fund Department Account ProjectProgram Activity Budget Reference# Amount
ID ID Year Chartfield 2
Submitted for City Manager's Office by: Jay Chapa (5804)
Originating Department Head: Kara Shuror(8819)
Additional Information Contact: Stacy Walters (8203)
ATTACHMENTS
60RIVERSIDE WTP DEMOLITION CO2 Form 1295.pdf
60RIVERSIDE WTP DEMOLITION CO2 map.pdf
http://apps.cfwnet.org/council_packet/mc review.asp?ID=25278&councildate=11/7/2017 11/8/2017
FORT WORTH City of Fort Worth
~ � Change Order Additions
Project Name Riverside WWTP Demo&Sludge Lagoon Excavation&Disposal Project City Se
Client Project#
Project Description Former Riverside WWTP Demo&Sludge Lagoon Excavation&Disposal Project to demo existing lecacy structures&e
transporation&disposal of contaminated soil from abandoned sludge lagoons
Contractor Undamood Demolition,Inc. Change Order# 0 Date E
City Project Mgr. Stacy Walters City Inspector Freese&Nichols, Inc.
ADDITIONS
DISCRIPTION DEPT n1 n
Excavation of ContaminatedSoils and M-etal 2ones) wer
Transportation of Contaminated Soils to Itasca Landfill Round 1A) Sewer T N
9 Transportation of Contaminated roils to Itasca Landfill(Round 1B) Sewer 111,655.00T N
11 Disposal o ppm ana Metalon amina a Soils (Round ewer 1 TON
1Disposal o P S(<50 ppm)and Metal Contaminated Soils(Round 16 ewer 1 T N
1ZT—Stabilizabon Materia s-Hardy board gewer 750.60T N
Change Order Additions Page 1 of 2
TPW
Water
Sewer
ubTotal Addit
Change Order Additions Page 2 of 2
FORT WORTH City of fort worth
Change Order Deletions
Project Name Riverside WWTP Demo&Sludge Lagoon Excavation&Disposal Project City Se
Client Project#
Project Description Former Riverside WWTP Demo&Sludge Lagoon Excavation&Disposal Project to demo existing lecacy structures&e
transporation&disposal of contaminated soil from abandoned sludge lagoons
Contractor Lindamood Demolition,Inc. Change Order# =1 Date E
City Project Mgr. Stacy Walters City Inspector Freese&Nichols,Inc.
DELETIONS
ITEM DE9CRIPTInN
ty ns n
Excavation oContaminated Soils an Petal 73759) ewer
Transportation of Contaminated Soils to Itasca Landfili(Round 1a) Sewer 7,. 5. --7-0—N-9-
9 Transportation of Contaminated Soils to Itasca Landfill( ound 1 ) Sewer 1 ,655. 0 T N
11 U isposa a f F (550 ppm and Metalon amnia Soils (Round ewer 27,645. —TO—N8-
11—
NS
1 Disposal of PCB(<50 ppm)and Metal Contaminated ils(Round 18) Sewer 103,655,00 TONS
10 70—Stabilization Materials ar y Board Sewer 0.56fV
Change Order Deletions Page 1 of 2
TPW
Water
Sewer
ub Total eleti
Change Order Deletions Page 2 of 2
MINORITY BUSINESS ENTERPRISE PARTICIPATH
MONTHLY REPORT FORM *
TOTAL PAYMENTS RECEIVED FROM CITY TO-DATE; Z,715,046.00 CONTRACT OR P.O.N0.
PRIME COMPANY NAME LINDAMOOD DEMOLITION,INC. NOTICE TO PROCEED DATE 5/10/2017 DATES FOR THIS REI
CONTRACT NAME LAST PAYMENT RECEIPT DATI
ORIGINAL CONTRACT AMOUNT CHANGE ORDER/AMENDMENTS ADDITIONS OR REVISED CONTRACT AMOUNT
DELETIONS
'PROVIDE EXPLANATION FOR ADDITIONS/DELETIONS
Chg/Amend.#-L $ 50mmo0
$ 7,698,018.50 1 Chg/Amend.t%! s 7,748,468.50 1 00no,
NAME OF MBE FIRM(S)- SCOPE OF WORK PERFORMED BY MBE ORIGINAL MBE DOLLAR AMOU
NAME OF NON-MBE SUBCONTRACTOR FOR m CONTRACT Iwo
ALL TIERS BELOW THE 1"TIER*** AMOUNT AMOUNT PAID E
THIS MONTH
. Guido Construction 2 Trucking 461,882.00 675.00 52'
An explanation is required when MBE(s) has not been engaged in the contract to date or when there is no MBE activity tl
*Explain how"approved"additions/deletions will affect your original MBE utilization plan,use additional sheets as necessary
PRINT NAME TITLE DATE
Kayla Lindamood President Sept 1,2017 I—D
*SUBMIT THE FIRST COMPLETED MONTHLY REPORT AFTER THE FIRST PAYMENT AND BEGINNING WITH THE SECOND APPLICATION FOR PAYMENT,INCLUDING P
**YOU ARE REQUIRED TO IDENTIFY THE NAME OF THE NON-MBE SUBCONTRACTOR WHEN THE MBE LISTED IS OTHER 11
Attachment 1
Proposed Change Order No. 2
approachesInnovative
MEMORANDUM
w Practical
NICHOLS 1,iii< . ' , service
4055 International Plaza,Suite 200 * Fort Worth,Texas 76109 • 817-735-7300 - fax 817-735-7492 www.freese corn
TO: Kory Peterson and Andy Mcllvain, Lindamood Demolition, Inc.
FROM: Stacy Walters, City of Fort Worth;
Kimberly Buckley, P.G., Freese and Nichols, Inc.
SUBJECT: Former Riverside Wastewater Treatment Plant Demolition and Sludge Lagoon
Excavation and Disposal Project 00180
Settled Solids Encountered during Construction and Proposed Change Order No. 2
DATE: September 29,2017
The City of Fort Worth Water Department has been made aware of settled solids encountered in several
Sector 1 structures during plant demolition activities by Lindamood Demolition during the Former
Riverside Wastewater Treatment Plant Demolition and Sludge Lagoon Excavation and Disposal Project.
It is our understanding that the following events have occurred to document the solids encountered
during construction:
Friday,August 4, 2017—Lindamood Demolition, Inc. indicated during a meeting at the City
of Fort Worth Water Department that Lindamood had encountered solids at the bottom on
some of the structures in Sector 1 while demolishing the former treatment units.
FNI visited the site later that afternoon to meet with Lindamood's onsite superintendent and
document the condition of the solids discovered in the plant structures.Approximately 3 to S
feet of settled solids have settled out in four of the clarifiers on site.
Monday,August 7,2017—FNI reviewed original reports by Ned K Burleson &Associates to
determine if previous reports had indicated that settled solids were present in plant
structures. No indication was found that previous investigations had identified settled solids
at the base of the structures. FNI also reviewed stormwater data collected for the Sector 1
structures to confirm that all structures were sampled to verify water quality in the structures.
FNI prepared to sample the encountered solids to determine how they could be handled
during ongoing plant demolition.
Wednesday, August 9, 2017— FNI collected samples from each of the four clarifiers with
settled solids and submitted them to Xenco Laboratories for heavy metals and PCB analysis
under 2-day rush turnaround. While sampling the clarifiers, Lindamood informed FNI that
some of the Imhoff tanks also contained settled solids. Lindamood offered to assist FNI with
access to the Imhoff tanks for sample collection.
Monday,August 14, 2017—FNI received the analytical report from Xenco Laboratories for
the settled solids in the clarifiers after the end of the business day.
s.;
Page 2 of 3
Tuesday, August 15, 2017— FNI notified the City and Lindamood Demolition that elevated
concentrations of some heavy metals and PCBs were detected in samples collected from the
four clarifiers on site.
• Arsenic concentrations range from 10 to 54.7 mg/kg.
• Cadmium concentrations range from 8.63 to 570 mg/kg.
• Lead concentrations range from 149 to 7600 mg/kg.
• Mercury concentrations range from 0.494 to 5.72 mg/kg.
• PCB concentrations range from 1.7 to 310 mg/kg.The regulatory limit is 1.1 mg/kg.
August 16, 2017—FNI collected samples from each of the Imhoff tank sections with settled
solids and submitted them to Xenco Laboratories for heavy metals and PCB analysis under 2-
day rush turnaround.
August 22,2017—FNI received the analytical report from Xenco Laboratories for the settled
solids in the Imhoff tanks. Slightly elevated concentrations of some heavy metals and PCBs
were detected in samples collected from the Imhoff tanks on site.
• Cadmium concentrations range from 20.3 to 218 mg/kg.
• Mercury concentrations range from 0.175 to 25.9 mg/kg.
• PCB concentrations range from 3.3 to 23.9 mg/kg.The regulatory limit is 1.1 mg/kg.
Based on the analytical results, settled solids from Secondary Clarifiers #2 and #3 will likely require
disposal as a TSCA-regulated PCB waste (with PCB concentrations greater than 50 mg/kg). Settled solids
in Secondary Clarifier #1, Final Clarifier #3, and the Imhoff tanks will likely require disposal as a
nonhazardous Class 1 or Class 2 waste depending on heavy metal concentrations. Stormwater has been
drained from all of these structures; however,the settled solids are saturated from being at the base of
these structures full of water.
Proposed Change Order No.2
The following solution is proposed to handle the identified settled solids as well as maximize the use of
onsite materials to stabilize the settled solids before excavation and disposal at Itasca Landfill. An
overview figure is attached.
1. Excavate Round 1A soils from the Sludge Lagoons and mix with settled solids in Secondary
Clarifiers #2 and #3 to reduce the moisture content in the settled solids. Approximately 1,357
cubic yards of Rounds 1A soils will be excavated from the Sludge Lagoons and mixed with an
estimated 1,310 cubic yards of settled solids in Secondary Clarifiers#2 and#3.
2. Add stabilization materials to the mixture to stabilize the material and further reduce the moisture
content such that it will pass the paint filter test for the landfill.
3. Resample the stabilized solids to confirm that the material meets the waste profile for Republic.
4. Dispose of the waste as TSCA-regulated PCB waste (Round 1A) at Itasca Landfill. FNI does not
anticipate a need to increase the bid quantity to accommodate the additional volume of settled
soils and stabilization materials since,based on the additional sampling data from waste profiling,
the total volume of soils excavated from the Sludge Lagoons in Round 1A will be less than
originally scoped.
Page 3 of 3 1 0
5. Excavate Round 1B soils from the Sludge Lagoons and mix with settled solids in Secondary Clarifier
#1, Final Clarifier#3, and the Imhoff tanks to reduce the moisture content in the settled solids.
Over 10,000 cubic yards of Rounds 113 soils are available from the Sludge Lagoons to be mixed
with an estimated 3,089 cubic yards of settled solids in Secondary Clarifier#1, Final Clarifier#3,
and the Imhoff tanks.
6. Add stabilization materials to the mixture to stabilize the material and further reduce the moisture
content such that it will pass the paint filter test for the landfill.
7. Resample the stabilized solids to confirm waste profile for Republic.
8. Dispose of the waste as non-hazardous Class 2 waste(Round 1B)at Itasca Landfill. FNI anticipates
an increase in the bid quantities for Round 1B soils transported and disposed by approximately
8,000 tons to accommodate the estimated volume of settled soils and stabilization materials.
9. Additional costs will also likely be incurred for excavating, mixing, and subsequent loading of
materials for transport and disposal as well as the additional cost for stabilization materials at
approximately$50.00 per ton.
Estimated Chan a Order No. 2
OrderCurrent Contract Revised Per Change
Unit Unit
Description Quantity unit Price TotalDifference
Excavation of
Contaminated
Soils(PCLE and
Metal Zones) 145,200 CY 2.3534T220.00145 CY $3.53 5A556.00 $171.336.00
Transportation of
Contaminated
Soils(PCLE and
Metal Zones)to
Itasca Landfill
Round 1A 27,845 TONS $10.00 $278.450.00 13.883 TONS $10.00 $138.830.00 -$139,620.00
Disposal of PCB
(>50 ppm)and
Metal
Contaminated
Soils at Itasca
Landfill(Round
1A 27.845 TONS W00 $974,575.00 13.883 TONS $80.25 $1.114,110,75 $139,535.75
Transportation of
Contaminated
Soils(PCLE and
Metal Zones)to
Itasca Landfill
Round 1B) 103,655 TONS 10.00 $1.036.550.00 111.655 TONS $10.00 $1,116.550.00 $80,000.00
Disposal of PCB
(<50 ppm)and
Metal
Contaminated
Soils at Itasca
Landfill(Round
18) 103,655 1 TONS 1 $15.50 $1,606,652.50_ 911 6SS TONS 1 $15.50 $1,730,652.50 $124.000.00
Stabilization
materials N/At NIA I N/A 1 $0.00 750 TONS 1 $50.00 1 $37,500.00 $37,500
Total Change Order Amount $412,751.75
20' Width X 20' Length X 6' Depth
2,400 Cubic Feet
x
20' Width X 20' Length X 5' Depth
2,000 Cubic Feet
wi Y
274,700 Cubic Feet �
, yfi W
20' Width X 20' Length X 10' Depth
4,000 Cubic Feet .
20' Width X 20' Length X 5' Depth t
2,000 Cubic Feet
Fill with soil from
Round 1B
m
F
Fill with soil from T
Round 1A
,
Fill with soil from
Round 1 B
90' Bas
2
Y�r�
I' I�
! Y! !
FREESE
ONICH
11 .
4055 International Plaza,Suite 200 Fort Worth,Texas 76109 817-735-7300 • fax 817-735-7492 www.freese.com
September 27, 2017
Ms.Stacy Walters
Regulatory/Environmental Coordinator
City of Fort Worth Water Department
P. 0. Box 870
Fort Worth,Texas 76101-0870
Re: Riverside Wastewater Treatment Plant Demolition and Sludge Lagoons Excavation and Disposal Project
City of Fort Worth Water Department Project No.00180
Change Order Request No.2(CO-02)
Dear Ms.Walters:
Enclosed please find a copy of Change Order No. 2 for work to be performed by Lindamood Demolition, Inc.
on the above referenced project.
This change order increases the overall contract value by$412,751.75 to$8,161,220.25. The purpose of this
change order is to address of settled solids encountered in several Sector 1 structures during plant demolition
activities by Lindamood Demolition during the Former Riverside Wastewater Treatment Plant Demolition
and Sludge Lagoon Excavation and Disposal Project by implementing the following changes to the contract:
• Lindamood Demolition will excavate contaminated soils from Sector 2 to mix with settled solids to
remove excess water for disposal. This requires the contractor to handle soils twice onsite. An
increased unit rate for excavation covers this additional handling.Additional stabilization materials
will be purchased to remove the remaining water from the soils.
• Settled solids from Secondary Clarifiers#2 and #3 require disposal as a TSCA-regulated PCB waste
(PCB>50 mg/kg).TSCA-regulated PCB waste excavation was reduced from 27,845 to 13,883 tons by
additional waste characterization data.
• The disposal unit rate for TSCA-regulated PCB waste (commitment letter with Republic Waste
Services)was corrected to$80.25 per ton.
• Settled solids in Secondary Clarifier#1, Final Clarifier#3,and Imhoff tanks require disposal as a Class
2 nonhazardous waste. Encountered settled solids increases transportation and disposal of Class 2
non-hazardous waste to Itasca Landfill from 103,655 to 111,655 tons,
Sincerely,
FREESE AND NICHOLS,INC.
Kimberly Buckley, P.G. Robert W.Chambers, P.G.
Project Manager Principal
Attachments
(.-
CERTIFICATE
OF INTERESTED PARTIES FORM 1295
loll
Complete Nos.1-4 and 6 if there are interested parties. OFFICE USE ONLY
Complete Nos.1,2,3,S.and 6 if there are no interested parties. CERTIFICATION OF FILING
1 Name of business entity filing form,and the city,state and country of the business entity's place Certificate Number:
of business. 2017-268206
Lindamood Demolition.Inc.
Irving,TX United States Date Filed:
2 Name of governmental entity or state agency that is a party to the contract for which the form is 10/03/2017
being filed.
City of Fort Worth Date Ackl ovAedged:
3 Provide the identification number used by the governmental entity or state agency to track or identify the contract,and provide a
description of the services,goods,or other property to be provided under the contract.
00180
Demolition of existing WWTP
4 Nature of interest
Name of Interested Party City,State,Country(place of business) (check applicable)
Controlling I Intermediary
Lindamood, Kayla Irving,TX United States X
5 Check only if there is NO Interested Party.
6 AFFIDAVIT I swear,or affirm,under penalty of perjury,that the above disclosure is true and correct.
ERIKA MICHELLE MARTIN
♦�Y P�B�i
NNotary Public,State of Texas
.: Q� Comm.Expires 04-04-2021
OF„ `�� Notary ID 131073746
g u a auth ¢ed agent of contracting business entity
AFFIX NOTARY STAMP I SEAL ABOVE
Swam to and subscribed before me,by the said Kayla Lindamood this the 4th day of October
20 17 to certify which,witness my hand and seal of office.
jv � M
Signature of officer administering oath Printed name of officer administering oath Title of officer administering oath
Forms provided by Texas Ethics Commission www.ethics.state.tx.us Version V1.0.3337