95-17 Resolution No. 95-17
RESOLUTION
APPROVING CHANGE ORDER NO. 2 IN THE CONTRACT WITH
ATEC & ASSOCIATES, INC.
WHEREAS, the City of Elgin has heretofore entered into a
contract with ATEC & Associates, Inc. for the design and
installation of a groundwater remediation system for
206-280 South Grove Avenue; and
WHEREAS, it is necessary and desirable to modify the
terms of the contract as is described in Change Order No. 2,
attached hereto.
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE
CITY OF ELGIN, ILLINOIS, that Richard B. Helwig, City Manager,
be and is hereby authorized and directed to execute Change
Order No. 2, a copy of which is attached hereto and made a
part hereof by reference.
s/ George VanDeVoorde
George VanDeVoorde, Mayor
Presented: January 25, 1995
Adopted: January 25, 1995
Vote: Yeas 7 Nays 0
Attest:
s/ Dolonna Mecum
Dolonna Mecum, City Clerk
ELGIN, ILLINOIS
ADDITIONAL SERVICES FOR 206 - 280 SOUTH GROVE AVENUE
CHANGE ORDER NO. 2
SCOPE: This Change Order No. 2 covers additional services
related to the installation of a groundwater
remediation system at the City of Elgin properties
located at 206-280 South Grove Avenue under a con-
tract awarded on February 10, 1994 .
The Contractor for this project is ATEC Associates,
Inc. of Downers Grove, Illinois .
REASONS FOR CHANGE: This Change Order is required for the
additional costs necessary to implement and complete the
corrective action plan submitted to the Illinois Environmental
Protection Agency ( IEPA) . All of the following tasks which
have been or will be completed pursuant to this change order
have been or will be constructed in accordance with the as-
built plans dated January 17 , 1995, which are attached hereto
and made a part hereof by this reference as Exhibit "A" .
TASKS:
1. Measure Water Levels and Sample Groundwater from Monitor-
ing Wells
ATEC performed groundwater sampling of the monitoring
wells at the South Grove Avenue property. Due to damage
of two monitoring wells, sampling could not be performed
resulting in a reduction of $3,684 . 75 to this task.
2 . Perform Slug Tests on Six Monitoring Wells
ATEC performed slug tests on the monitoring wells at 280
South Grove Avenue (former Bunge Tire) , however the
datalogger and computer were not operative and thus was
not charged to the project. This resulted in a reduction
of $715 . 00 to this task.
3 . Perform Geotechnical Soil Testing
ATEC collected soils samples for geotechnical soil test-
ing during well installation at 280 South Grove Avenue
(former Bunge Tire) . This lowered the cost incurred for
this task since a drill rig and crew were not charged to
this task. This resulted in a reduction of $2,646 .00 to
this task.
4 . Additional Design of Groundwater Remediation System
ATEC originally budgeted 300 hours for this task for
the design of the groundwater remediation system
(original contract) . At the time of the authoriza-
tion from the City Council, the amount of hours for
design was based upon a design of a groundwater
interceptor trench and two groundwater extraction
wells . ATEC completed the design of the system, and
discussed the design and installation with the City
of Elgin and Elgin Riverboat Resort.
Elgin Riverboat Resort expressed concern with caving
of the trench walls due to their experience with the
installation of a deep sanitary sewer along the
river. Since the CAP approval from the IEPA would
take several weeks, and the groundwater remediation
system needed to be installed prior to the opening
of the Grand Victoria Casino, all parties felt that
a different system may be more prudent. The concern
was that if difficulties were experienced with the
installation, there would not be sufficient time for
a resubmittal of the CAP and construction, and thus
the opening of the Grand Victoria Casino would be
delayed.
ATEC then designed a groundwater system consisting
of two trenches and five ground water extraction
wells. This design was presented to be installed to
the City Council as Change Order No. 1. Since ATEC
had completed the original design, most of the hours
budgeted had been utilized. Since it was necessary
not to delay the opening of the Grand Victoria
Casino, the additional design work was completed by
ATEC and the CAP was submitted to the IEPA and was
subsequently approved. At the time of the submittal
of Change Order No. 1, ATEC was still in the process
of design work and was awaiting IEPA comments and
changes . Therefore, the additional hours were not
included with Change Order No. 1.
Subsequent to the second revision, concerns we
raised regarding system annual operating costs, it
was necessary to revise the groundwater remediation
system after the approval of Change Order No. 1.
The revised groundwater remediation system design
included two groundwater piping headers, and a
valving system that allowed water extracted from the
wells to move into either pipe, creating discharge
options .
After the approval from the IEPA, it was necessary
to receive two additional major permits from the
IEPA water section and FRWRD. Additional time ( 100
hours) was necessary for the preparation of the
permits. Due to involvement of the agencies, it was
mandated that additional safety features to be built
into the system. This included making the system
explosion proof, and the installation of lower
explosive level (LEL) meters into each of five well
vaults, two meter vaults and the sanitary sewer
discharge point. One additional precast concrete
sampling manhole was also installed at the request
of FRWRD.
ATEC' s original estimate of 256 hours of engineering
time was exceeded by 660 hours (for a total of 916
hours) . This time was exceeded due to the prepara-
tion of three groundwater designs (rather than one) ,
and the submittal of two Corrective Action Plans and
associated correspondence to the IEPA. It should be
noted that the second and subsequent third design
was more technically involved requiring more time
than the preceding design. These design changes
resulted in an addition of $45,696 .35 to this task.
5. Install Nine Groundwater Monitoring Wells
ATEC and their subcontractor drillers were able to
complete the installation of the groundwater moni-
toring wells in less time than anticipated. In
addition, a modification was made in the protective
coverings for the wells which reduced the cost for
this task by $5,708.75. It should be noted that a
mathematical error of $10,530.00 was added into this
task. The total of these changes resulted in a
reduction of $23,310.47 to this task.
6 . Install One Extraction Well and Perform Pump Test
Due to the increased flow rate encountered in Ex-
traction Well #1, additional time was required to
perform the pump test and to determine the flow
rate. The type and size of the pump also changed
resulting in an additional cost. The total of these
changes resulted in an addition of $772 .45 to this
task.
7 . Install Four Extraction Wells
Due to the increased flow rates anticipated, the
extraction well size was increased. In place of
4-inch diameter stainless steel wells, 6-inch stain-
less steel wells were installed. Additional costs
for material and labor were incurred. Due to the
increased sizes of the wells, increased costs were
incurred to develop the wells. Drilling and over-
sight costs increased, as well as cutting and devel-
opment water disposal costs . The total of these
changes resulted in an addition of $9 ,213.42 .
B . Construct Groundwater Piping and Electrical Trenches
Following the installation of the groundwater ex-
traction wells, the remaining portions of the
groundwater remediation system were installed. Due
to the change in the groundwater remediation system
design, additional costs were incurred.
a) Excavation of the groundwater piping trench was
increased in length by 270 feet. The design
approved in Change Order
1 called for two and another
trenches, one of approximately
of 335 feet in length, with one groundwater
extraction pipe in the trench. The revised
groundwater remediation system was constructed
with one continuous trench. This as-built
trench was now increased to a length of 875
feet. Two pipes were installed in the trench,
three to four times the larger than originally
proposed. Due to the increase in the number
and size of the pipes, the width of the trench
was also increased. Excavation was necessary
under a water main, which made it necessary to
use piping that met specifications for con-
struction of water and sewer mains in Illinois .
b) Since the revised groundwater remediation
system design included two groundwater piping
headers, and a valving system to add flexibili-
ty in discharge options, material amounts and
installation costs increased.
c) Due to the time constraints of installing the
groundwater system prior to the opening of the
Grand Victoria Riverboat, the installation of
the system include overtime and weekend work,
which increased labor and equipment costs.
d) Due to the additional length and width of the
groundwater remediation trench, additional
soils were removed from the site, increasing
the cost of the project. The amount of soil
excavated and disposed increased to 1025 cubic
yards from the original estimate of 400 cubic
yards . Additional backfill was also required.
e) Due to the increased power required for the
larger pumps, the wire and conduit sizes in-
creased. Additional electrical costs were
incurred due to the necessary installation of
LEL meters in each of the vaults, installation
of a 200 Amp (vs . 100 Amp) service.
The total of these changes resulted in an addition
of $138,754 .20 to this task as shown on the accompa-
nying sheet.
9 . Construction Preparation and Construction Oversight
Due to the change in the design of the groundwater
remediation system, the time necessary to complete
the installation of the system increased due to the
complexity and additional work necessary. ATEC' s
staff time necessary for construction preparation
and construction oversight was increased. In addi-
tion, due to time constraints, the material for
construction had to be scoped out and ordered by
ATEC during the construction. This additional time
increased ATEC's time from 360 hours to 855 hours .
The total of these changes resulted in an addition
of $38, 164 . 15 to this task as shown on the accompa-
nying sheet.
10 . Prepare 0 & M Manual
Due to the addition of meters and the change in the
design of the groundwater remediation system, addi-
tional time will be necessary to complete the Opera-
tion and Maintenance (0 & M) Manual . The total of
these changes resulted in an addition of $1, 300.00
to this task as shown on the accompanying sheet.
SUMMARY OF CHANGES IN CONTRACT AMOUNT:
The project was contracted with a total of 10 tasks . Task 1
through Task 4 were the original contract (development of
CAP) . Task 5 through Task 10 were Change Order No. 1 (imple-
mentation of CAP) .
The amount of contract will be revised as follows :
ITEM COST CHANGE
Task 1 Subtract $ 3,684 .75
Task 2 Subtract $ 715 .00
Task 3 Subtract $ 2,646 .00
Task 4 Add $ 45,696 . 35
Task 5 Subtract $ 23,310 .47
Task 6 Add $ 772 .45
c '
Task 7 Add $ 9,213.42
Task 8 Add $ 138,754 .20
Task 9 Add $ 38, 164 . 15
Task 10 Add $ 1,300 .00
Total Add $ 203,544 .35
The present contract with ATEC is for $260,447 .75 . By reason
of Change Order No. 2 the contract for the additional services
will be increased in the amount of Two Hundred Three Thousand
Five Hundred Forty Four and 35/100 Dollars ($203,544 .35) . The
new revised contract Thousand total Twenty be Two aandnt r 10/ 00
Sixty Dollars
($464,022 . 10) .
OTHER CONTRACT PROVISIONS: All other contract provisions of
the original contract agreement of February 9, 1994, shall
remain the same and in full force and effect for the addition-
al work to be performed under this change order.
Agreed to this ':7t4_ day of January, 1995 .
Recommended:
City of 'n
By:
Date:
Accepted:
ATEC Associates, Inc.
Party of the Second P?artn (Contractor)
By:
Title:
Date:
Approved:
City of Elgin
Party of the First Part (Owner)
By: -� ��S k•���
Title:
Date:
•
n
Agenda Item No. �.
January 20, 1995
TO: Mayor and Members of the City Council
FROM: Richard B. Helwig, City Manager
SUBJECT: Change Order No. 2 for Revisions to the Groundwater
Remediation System Installed at 206-280 South Grove
Avenue Properties
PURPOSE
The purpose of this memorandum is to forward to the Mayor and
City Council Change Order No. 2 for revisions to the Groundwa-
ter Remediation System installed at 206-280 South Grove Ave-
nue.
BACKGROUND
As part of a request for specific soil cleanup objectives
submitted to the Illinois Environmental Protection Agency
( IEPA) for 210 South Grove Avenue and 240 South Grove Avenue,
the City of Elgin stated that it would continue to investigate
the site through groundwater studies and design, construct and
operate a groundwater remediation system. ATEC Associates,
Inc. (ATEC) was awarded a contract to develop a groundwater
corrective action plan for the City of Elgin properties locat-
ed along South Grove Avenue (206-280 South Grove Avenue for
$38,374 .50) . ' Change Order No. 1 in the amount of $222, 103 .25
was awarded to ATEC to solicit bids and install a groundwater
remediation system. In a memo dated October 27, 1994, Council
was advised that modifications were required to the groundwa-
ter remediation system and that additional costs would be
incurred.
Under the initial contract, ATEC budgeted 300 hours for the
design of the groundwater remediation system. At the time of
the authorization from the City Council, the amount of hours
for . design was based upon a design of a groundwater intercep-
tor trench and two groundwater extraction wells. ATEC com-
pleted the design of the system, and discussed the design and
installation with the City of Elgin and Elgin Riverboat Re-
sort.
Elgin Riverboat Resort expressed concern with caving of the
trench walls due to their experience with the installation of
Mayor and Members of the City Council
January 20, 1995
Page 2
a deep sanitary sewer along the river. Since the CAP approval
from the IEPA would take several weeks, and the groundwater
remediation system needed to be installed prior to the opening
of the Grand Victoria Casino, all parties felt that a differ-
ent system may be more prudent. The concern was that if
difficulties were experienced with the installation, there CAP and
would notion sufficient and thus time
the opening s of the 1 of
construe Grand e Victoria
,
Casino would be delayed.
ATEC then designed another groundwater system consisting of
two trenches and five ground water extraction wells. This
design was presented to the City Council as Change Order No.
1. Since ATEC had completed the original design, most of the
hours budgeted had been utilized. The additional design work
was completed by ATEC and the CAP was submitted to the IEPA
and was subsequently approved. At the time of the submittal
of Change Order No. 1, ATEC was still in the process of design
work and al hours gwereAnot comments ncluded d with nChange Therefore,
Order No.
the addition
1 .
As part of the installation of the groundwater remediation
system, one groundwater extraction well was installed est revealed
subsequently subjected to a pump test. The pump more than
a higher yield rate of 310 gallons per minute (gp m) ,
was utilized for the original calculations preparation
of the Corrective Action Plan (CAP) submitted July 21, 1994 .
The CAP design was based upon slug tests performed atAthersite
which revealed a groundwater yield rate of 27 gpm.
pump test was performed, discussions with the Fox River Water
Reclamation District (FRWRD) revealed the possibility of an
increased user charge which would greatly increase the opera-
tion cost of the system. Due to the increased yield rate and
the possible rate change from FRWRD, the viability of FRWRD as
a discharge point for groundwater was questioned.
Because of the above-mentioned issues, it was necessary to
change the design of the groundwater remediation system. The
decision was made between the City of Elgin, Ries Environmen-
tal, Inc. and ATEC Associates, Inc . to build flexibility into
the groundwater system to allow discharge from the groundwater
remediation system to points other than the sanitary sewer
(i.e. a future on-site treatment system and/or the Fox River) .
The rate increase being considered by FRWRD at that time would
have resulted in an annual disposal cost in excess of
by
;1,000,000 . The flexibility of thhethatsconsistedsofdtwo
designing and installing a piping header
groundwater piping systems, and a valving system that allowed
water extracted from each well to move into either pipe thus
allowing the additional discharge options .
Mayor and Members of the City Council
January 20, 1995
Page 3
The IEPA was notified of the change in the design and a re-
vised CAP was submitted to the IEPA on August 29, 1994 and
subsequently approved by the IEPA in early September. ATEC
began the installation of inground elements of the system on
continuously until
6eptember 20,
1994 . Th e
Due to the additional design work, and the costs incurred with
the installation of the revised groundwater remediation system
installation, Change Order No. 2 is necessary. The attached
design drawings provide detail on the system that was origi-
nally proposed and ultimately constructed.
ATEC has charged all subcontractor costs on this project at
cost (no markup or handling charge to the City of Elgin) .
Since this project needed to be installed prior to the opening
of the Grand Victoria Casino, ATEC brought in specialists from
Michigan to install the piping system. ATEC paid for the cost
of lodging, travel and meals of the specialists ($3,376 .66) ,
and will not charge the City of Elgin for these costs . In an
effort to limit the amount of this change order, ATEC
by also
reduced the number of hours charged to this project
hours, resulting in a reduction in costs of $18,407 .50 to the
City of Elgin.
In addition, per
the request of the City of Elgin, as part of
the acceptance of Change Order No. 2, ATEC will prepare an
submit the reimbursement package to the IEPA at no charge to
the City of Elgin. The estimated cost to prepare and submit
request to the IEPA is $4 ,400 .00 . The City
the reimbursement
is not eligible for reimbursement from the State until the
necessary documentation is properly submitted. All invoices
im-
must be paid in advance
IEPAbY the
ATECi has prior to ethe
bursement from th
preparation of the reimbursement package.
Attached is Change Order No. 2 from ATEC regarding additional
services related to the installation of the system that was
approved by the ct•of $203 , 544 . 35 .he change order includes ten items
with a total os
ATEC will be present
you mayehave regarding January
thech change order.
answer any ques Y
COMKuNITY GROUPS/INTERESTED PERSONS CONTACTED
None.
FINANCIAL IMPACT
The change will result in a $203,544 . 35 increase in the con-
tract with ATEC from $26 1,4througho Item ,10 2 are eligible i for
ties described in Item
Mayor and Members of the City Council
January 20, 1995
Page 4
reimbursement from the Illinois Leaking Underground Storage
Tank Fund (LUST) . The eligibility of the additional costs
incurred has been discussed with the Illinois Environmental
Protection Agency ( IEPA) . The approval of the revised collec-
tive action plan by the IEPA indicated that additional expens-
es related to the revised system are eligible for reimburse-
ment through the Lust Fund.
Expenses related to the costs of the installation of the
groundwater remediation system will be charged to fund
260-000-791-45-99 , Project No. 179511 . The total budgeted
expenditure in the South Grove TIF Fund is $404 ,725, to be
funded from the property tax increment ($260, 000) and land
lease payments ( $100, 000 ) .
LEGAL IMPACT
None.
RECOMMENDATION
It is recommended the City Manager be authorized to execute
Change Order No. 2 .
Respectfully submitted,
i
W,,
Raymond H. Moller
Director of Business
Services and Properties
Richard B. Helwig
City Manager
RHM/sg
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Memorandum
October 27, 1994
p3"A •
TO: Richard B. Helwig, City Manager
FROM: Raymond H. Moller, Director of City Properties
SUBJECT: Revisions to the Groundwater Remediation System ,
South Grove Avenue
The original system that was designed and presented to the
City Council for groundwater remediation at the South Grove
riverboat redevelopment site called for - the direct discharge
of contaminated groundwater into the sanitary sewer system.
Following the approval of the plan and the authorization to
proceed, some concern developed regarding the possibility
that the Fox River Water Reclamation District may raise the
rates that they were charging to treat the discharge of con-
taminated materials into their system.
In anticipation of a possible change in this area, a number
of modifications were made to the originally designed sys-
tem. The consultant, ATEC i Associates, was asked to design
flexibility into the system. The revised groundwater
remediation system that has been installed provides for the
following:
l. Direct discharge into the sanitary sewer system.
2. Discharge into an as yet constructed optional treatment
system, which then would allow for discharge into the'
Fox River.
3. Direct discharge of the groundwater into the Fox River.
The increased flexibility of design has resulted in added
material costs for piping, wiring and other related hardware,
and also additional excavation of contaminated soils and the
necessary fill for the excavation that was created.
The cost of the system that was originally designed was ap-
proximately $222,000. The current estimate for the revised
system is $350,000.
a j
:tichard B. Helwig
October 27, 1994
Page Z
The Illinois Environmental Protection Agency (IEPA) has ap-
proved the installation of the revised system and it is antic-
ipated that the increased costs will be reimbursable from
IEPA. .
The impending opening of the riverboat development required
the prompt installation of the revised system. It also
should be noted that it is anticipated that the annual operat-
ing costs of the groundwater treatment system could be re-
duced if Option 3 of the design system is implemented, that
being direct discharge into the Fox River. The system would
have to be up and operating for a given period of time and
the groundwater treated before permits could be sought from
the appropriate state agencies for direct discharge into the
river.
Raymonf H. Moller
Directbr of City Properties
RHM:amp
ELGIN, ILLINOIS
ADDITIONAL SERVICES FOR 206 - 280 SOUTH GROVE AVENUE
CHANGE ORDER NO. 2
SCOPE: This Change Order No. 2 covers additional services
related to the installation of a groundwater
remediation system at the City of Elgin properties
located at 206-280 South Grove Avenue under a con-
tract awarded on February 10, 1994 .
The Contractor for this project is ATEC Associates ,
Inc . of Downers Grove, Illinois .
REASONS FOR CHANGE: This Change Order is required for the
additional costs necessary to implement and complete the
corrective action plan submitted to the Illinois Environmental
Protection Agency ( IEPA) . All of the following tasks which
have been or will be completed pursuant to this change order
have been or will be constructed in accordance with the as-
built plans dated January 17 , 1995, which are attached hereto
and made a part hereof by this reference as Exhibit "A" .
TASKS:
1 . Measure Water Levels and Sample Groundwater from Monitor-
ing Wells
ATEC performed groundwater sampling of the monitoring
wells at the South Grove Avenue property. Due to damage
of two monitoring wells, sampling could not be performed
resulting in a reduction of $3,684 .75 to this task.
2 . Perform Slug Tests on Six Monitoring Wells
ATEC performed slug tests on the monitoring wells at 280
South Grove Avenue (former Bunge Tire) , however the
datalogger and computer were not operative and thus was
not charged to the project. This resulted in a reduction
of $715 .00 to this task.
3. Perform Geotechnical Soil Testing
ATEC collected soils samples for geotechnical soil test-
ing during well installation at 280 South Grove Avenue
(former Bunge Tire) . This lowered the cost incurred for
this task since a drill rig and crew were not charged to
this task. This resulted in a reduction of $2,646 .00 to
this task.
4 . Additional Design of Groundwater Remediation System
ATEC originally budgeted 300 hours for this task for
the design of the groundwater remediation system
(original contract) . At the time of the authoriza-
tion from the City Council, the amount of hours for
design was based upon a design of a groundwater
interceptor trench and two groundwater extraction
wells . ATEC completed the design of the system, and
discussed the design and installation with the City
of Elgin and Elgin Riverboat Resort.
Elgin Riverboat Resort expressed concern with caving
of the trench walls due to their experience with the
installation of a deep sanitary sewer along the
river. Since the CAP approval from the IEPA would
take several weeks, and the groundwater remediation
system needed to be installed prior to the opening
of the Grand Victoria Casino, all parties felt that
a different system may be. more prudent. The concern
was that if difficulties were experienced with the
installation, there would not be sufficient time for
a resubmittal of the CAP and construction, and thus
the opening of the Grand Victoria Casino would be
delayed.
ATEC then designed a groundwater system consisting
of two trenches and five ground water extraction
wells . This design was presented to be installed to
the City Council as Change Order No. 1 . Since ATEC
had completed the original design, most of the hours
budgeted had been utilized. Since it was necessary
not to delay the opening of the Grand Victoria
Casino, the additional design work was completed by
ATEC and the CAP was submitted to the IEPA and was
subsequently approved. At the time of the submittal
of Change Order No. 1, ATEC was still in the process
of design work and was awaiting IEPA comments and
changes . Therefore, the additional hours were not
included with Change Order No. 1 .
Subsequent to the second revision, concerns we
raised regarding system annual operating costs, it
was necessary to revise the groundwater remediation
system after the approval of Change Order No. 1 .
The revised groundwater remediation system design
included two groundwater piping headers, and a
valving system that allowed water extracted from the
wells to move into either pipe, creating discharge
options .
Alter the approval from the IZPA, iz was necessary
to receive two additional major permits from the
IEPA water section and FRWRD. Additional time ( 100
hours) was necessary for the preparation of the
permits . Due to involvement of the agencies, it was
mandated that additional safety features to be built
into the system. This included making the system
explosion proof, and the installation of lower
explosive level (LEL) meters into each of five well
vaults, two meter vaults and the sanitary sewer
discharge point. One additional precast concrete
sampling manhole was also installed at the request
of FRWRD.
ATEC' s original estimate of 256 hours of engineering
time was exceeded by 660 hours ( for a total of 916
hours ) . This time was exceeded due to the prepara-
tion of three groundwater designs (rather than one) ,
and the submittal of two Corrective Action Plans and
associated correspondence to the IEPA. It should be
noted that the second and subsequent third design
was more technically involved requiring more time
than the preceding design. These design changes
resulted in an addition of $45,696 . 35 to this task.
5 . Install Nine Groundwater Monitoring Wells
ATEC and their subcontractor drillers were able to
complete the installation of the groundwater moni-
toring wells in less time than anticipated. In
addition, a modification was made in the protective
coverings for the wells which reduced the cost for
this task by $5,708.75. It should be noted that a
mathematical error of $10,530. 00 was added into this
task. The total of these changes resulted in a
reduction of $23,310 .47 to this task.
6 . Install One Extraction Well and Perform Pump Test
Due to the increased flow rate encountered in Ex-
traction Well #1, additional time was required to
perform the pump test and to determine the flow
rate. The type and size of the pump also changed
resulting in an additional cost. The total of these
changes resulted in an addition of $772.45 to this
task.
7 . Install Four Extraction Wells
- Due to the increased flow rates anticipated, the
extraction well size was increased. In place of
4-inch diameter stainless steel wells, 6-inch stain-
less steel wells were installed. Additional costs
for material and labor were incurred. Due to the
increased sizes of the wells, increased costs were
incurred to develop the wells . Drilling and over-
sight costs increased, as well as cutting and devel-
opment water disposal costs . The total of these
changes resulted in an addition of $9,213 .42 .
8 . Construct Groundwater Piping and Electrical Trenches
Following the installation of the groundwater ex-
traction wells, the remaining portions of the
groundwater remediation system were installed. Due
to the change in the groundwater remediation system
design, additional costs were incurred.
a) Excavation of the groundwater piping trench was
increased in length by 270 feet. The design
approved in Change Order No. 1 called for two
trenches, one of approximately 270 and another
of 335 feet in length, with one groundwater
extraction pipe in the trench. The revised
groundwater remediation system was constructed
with one continuous trench. This as-built
trench was now increased to a length of 875
feet. Two pipes were installed in the trench,
three to four times the larger than originally
proposed. Due to the increase in the number
and size of the pipes, the width of the trench
was also increased. Excavation was necessary
under a water main, which made it necessary to
use piping that met specifications for con-
struction of water and sewer mains in Illinois .
b) Since the revised groundwater remediation
system design included two groundwater piping
headers, and a valving system to add flexibili-
ty in discharge options, material amounts and
installation costs increased.
C) Due to the time constraints of installing the
groundwater system prior to the opening of the
Grand Victoria Riverboat, the installation of
the system include overtime and weekend work,
which increased labor and equipment costs .
d) Due to the additional length and width of the
groundwater remediation trench, additional
soils were removed from the site, increasing
the cost of the project. The amount of soil
excavated and disposed increased to 1025 cubic
yards from the original estimate of 400 cubic
yards. Additional backfill was also required.
e) Due to the increased power required for the
larger pumps, the wire and conduit sizes in-
creased. Additional electrical costs were
incurred due to the necessary installation of
LEL meters in each of the vaults, installation
of a 200 Amp (vs . 100 Amp) service.
The total of these changes resulted in an addition
of $138,754 . 20 to this task as shown on the accompa-
nying sheet.
9 . Construction Preparation and Construction Oversight
Due to the change in the design of the groundwater
remediation system, the time necessary to complete
the installation of the system increased due to the
complexity and additional work necessary. ATEC' s
staff time necessary for construction preparation
and construction oversight was increased. In addi-
tion, due to time constraints, the material for
construction had to be scoped out and ordered by
ATEC during the construction. This additional time
increased ATEC' s time from 360 hours to 855 hours .
The total of these changes resulted in an addition
of $38, 164 . 15 to this task as shown on the accompa-
nying sheet.
10 . Prepare 0 & M Manual
Due to the addition of meters and the change in the
design of the groundwater remediation system, addi-
tional time will be necessary to complete the Opera-
tion and Maintenance (0 & M) Manual . The total of
these changes resulted in an addition of $1, 300 . 00
to this task as shown on the accompanying sheet.
SUMMARY OF CHANGES IN CONTRACT AMOUNT:
The project was contracted with a total of 10 tasks . Task 1
through Task 4 were the original contract (development of
CAP) . Task 5 through Task 10 were Change Order No. 1 (imple-
mentation of CAP) .
The amount of contract will be revised as follows :
ITEM COST CHANGE
Task 1 Subtract $ 31684.75
Task 2 Subtract $ 715.00
Task 3 Subtract $ 2,646 .00
Task 4 Add $ 45,696 .35
Task 5 Subtract $ 23,310.47
Task 6 Add $ 772 .45
i
e�ao 9,213 .4 2
Task 8 Add $ 138,754 .20
Task 9 Add $ 38, 164 . 15
Task 10 Add $ 1,300.00
Total Add $ 203,544 . 35
The present contract with ATEC is for $260,447 . 75 . By reason
of Change Order No. 2 the contract for the additional services
will be increased in the amount of Two Hundred Three Thousand
Five Hundred Forty Four and 35/100 Dollars ( $203,544 . 35). The
new revised contract total will be an amount of Four Hundred
Sixty Four Thousand Twenty Two and 10/100 Dollars
($464 , 022 . 10) .
OTHER CONTRACT PROVISIONS: All other contract provisions of
the original contract agreement of February 9, 1994 , shall
remain the same and in full force and effect for the addition-
al work to be performed under this change order.
Agreed to this day of January, 1995 .
Recommended:
City of Elgin
By:
Date:
Accepted:
ATEC Associates, Inc.
Party of the Second Part (Contractor)
By:
Title:
Date:
Approved:
City of Elgin
Party of the First Part (Owner)
By.
Title:
Date:
�ity of Elgin - South Grove Avenue Properties
;roundwater Corrective Action Plan
Estimated/Actual Cost Comparison Estimated Actual
Item Cost cost
Task 1 - Measure and Sample Water
ATEC Costs
Principal Engineer/Scientist $95.00 $0.00
Project Engineer/Scientist $260.00 $130.00
Staff En ineer $2,750.00 $2,681.25
Vehicle $165.00 $110.00
Disposable Bailer $136.00 $56.00
Sample Shippin $255.00 $105.00
BTEX An sis (Water) $990.00 $330.00
PNA Analysis Water $1,188.00 $594.00
Lead Analysis (Water $66.00 $33.00
Metals Anal sis (Water $1,078.00 $924.00
Semi-Volatile Analysis Water $2,255.00 $1,353.00
Volatile Analysis (Water) $907.50 $544.50
Hardness/Alkalinity (Water) $300.00 - $0.00
Material and Supplies $100.00 $0.00
Total Cost - Task 1 $10.545.50 S6 860.75
Task 2 - Perform Slug Tests
ATEC Costs
Principal Engineer/Scientist $95.00 $95.00
Project Engineer/Scientist $130.00 $0.00
Staff En ineer $2,200.00 $2,275.00
Datalogger & Transducers $400.00 $0.00
Portable Computer & Software $150.00 $0.00
Slug & Water Level Equi ment $100.00 $0.00
Decontamination E ui ment $50.00 $0.00
Vehicle $110.00 $150.00
Total Cost - Task 2 $3,235.0011 $2,520.00
Task 3 - Perform Geotechnical Soil Testing
Subcontractor Costs
Mob/Demob $162.00 $0.00
Drillin $486.00 $0.00
Steam Cleanin $216.00 $0.00
Steam Cleaner $108.00 $0.00
Grout Bori s $162.00 $0.00
Shelb Tubes $60.00 $0.00
Failing Head Permeabilit $880.00 $0.00
Sieve/H drometer Analysis $302.50 $300.00
Atterber Limits $192.50 $88.00
ATEC Costs
Principal Engineer/Scientist $95.00 $0.00
Project Engineer/Scientist $130.00 $130.00
Staff Engineer $550.00 $390.00
Vehicle $55.00 $0.00
OVM $75.00 $0.00
Sample Shipping $30.00 $0.00
Material and Supplies $50.00 $0.00
Total Cost -Task 3 $3,SS4.001 $908.00
ity of Elgin - South Grove Avenue Properties
Groundwater Corrective Action Plan
Estimated/Actual Cost Comparison
Estimated Actual
Item Cost Cost_
Task 4 - Submit CAP for IEPA Approval
ATEC Costs
Principal Engineer/Scientist $3,800.00 $3,413.75
Senior Project Engineer/Scientist $1,440.00 $2,625.00
Project Engineer $13,000.00 $58,171.25
CAD Draftsman $2,400.00 $1,920.00
Clerical 00.00 $62.50
Material 00.00 $543.85
Total Cost - Task 4 j$2j1,040.00 $66,736.35
Task 5 - Monitoring Well Installation
Subcontractor Costs
Mobilization/Demobilization $500.00 $890.00
Drilling $5,250.00 $2,739.50
2" dia., Schedule 304 SS Screen $3,795.00 $2,851.00
2" dia., Schedule 304 SS Riser $1,202.50 $942.13
2' dia., Schedule 304 SS Plug and Ca $333.00 $318.00
Sand Pack $978.75 $566.00
Bentonite Pellet Seal $1,134.00 $839.30
Volclay Grout $240.00 $75.60
Expandable Cap , $110.25 $30.00
Steam Cleaner $500.00 $410.00
Decontamination $1,170.00 $527.25
Well Installation $3,510.00 $2,935.00
Handholes $6,750.00 $1,041.25
Drums $270.00 $340.00
Well Abandonment $1,500.00
Subcontractor Subtotal Task 5 $25,743.50 $16,005.03
ATEC Costs
Well Installation
Principal Engineer/Scientist $760.00 $0.00
Project Engineer/Scientist 1 $5,850.00 $5,380.00
Vehicle $675.00 $225.00
OVM $1,125.00 $0.00
r::3�ell Development/Sampling
Staff Engineer/Scientist 1 ! _$2,750-00, _$4,771.25
Dedicated Bailer $1,293.75 $25.50
Vehicle $375.00 $150.00
H, Temp., Conductivity Equipment $150.00 $240.00
Laboratory Analysis
Attachment A Constituents $6,885.00 $6,120.00
Sample Shipping $90.00 $0.00
ATEC Subtotal Task 'S $30,483.75 $15,91. 1.75
rotal'Cost - Task 5 $56,227.25 $32,916.78
ity of Elgin - South Grove Avenue Properties
,roundwater Corrective Action Plan
Estimated/Actual Cost Comparison Estimated Actual
Item Cost Cosh.
Task 6 - Install Deep Well and Perform Pum Test
Mobilization/Demobilization $250.00 $1,770.00
HSA w/CSSS $1,435.00 $1,702.00
4' dia., Schedule 304 SS Screen $1,687.50 $725.00
4' dia., Schedule 304 SS Riser $330.00 $228.00
4' dia., Schedule 304 SS Plu $43.00 $20.00
Ca PVC $15.75 $0.00
Sand Pack $283.50 $283.50
Bentonite Pellet Seal $126.00 $0.00
Volclay Grout $96.00 $0.00
Steam Cleaner $100.00 $100.00
Decontamination $130.00 $0.00
Well Pump and Controller $5,000.00 $1,121.74
Well Installation $390.001 $0.00
Drums $30.001 $90.00
Well Vault $1,850.001 $2,594.32
Subcontractor Subtotal Task 6 $11,766.75 $8,634.56
ATEC Costs
Well Installation
Principal Engineer/Scientist $190.00 $0.00
Project Engineer/Scientist 1 $780.00 $600.00
Vehicle $75.00 $75.00
OV M $125.00 $0.00
Well Develop ment/Samplin
Staff Engineer/Scientist I $330.00 $2,268.75
Dedicated Bailer $143.75 $0.00
Vehicle $75.00 $95.90
H, Temp., Conductivity Equipment $30.00 $0.00
Perform Pump Test
Principal Engineer/Scientist $300.00 $0.00
Project Engineer/Scientist 1 $3,120.00 $5,525.00
Vehicle $300.00 $0.00
Equipment for Pump Test $1,000.00 $1,808.74
ATEC Subtotal Task S $6,468.75 $10,373.39
Total Cost - Task 6 $18,235.50 $19,007.95
ity of Elgin — South Grove Avenue Properties
Groundwater Corrective Action Plan
Estimated/Actual Cost Comparison
Estimated Actual
Rem Cost Coa1tR'
Task 7 — Install Four Extraction Wells
Mobilization/Demobilization $250.00 $1,200.00
HSA w/CSSS $4,305.00 $2,462.50
4' dia., Schedule 304 SS Screen $6,075.00 $5,400.00
4' dia., Schedule 304 SS Riser $687.50 $925.00
4' dia., Schedule 304 SS Plug $172.00 $0.00
Cap PVC $63.00 $96.00
Sand Pack $1,029.00 $582.00
Bentonite Pellet Seal $504.00 $0.00
VoIclay Grout $120.00 $0.00
Steam Cleaner $400.00 $300.00
Decontamination $520.00 $390.00
Well Pump and Controller $5,000.00 $4,487.00
Well Installation $2,080.00 $10,082.90
Drums $120.00 $0.00
Well Vaults $7,400.00 $10,377.27
Subcontractor Subtotal Task 7 $28,725.50 $36,802.67
ATEC Costs
Well Installation
Principal En ineer/Scientist $570.00 $0.00
Project Engineer/Scientist 1 $3,900.00 $6,906.25
Vehicle $300.00 $0.00
OVM $500.00 $0.00
ATEC Subtotal Task 7 $5,270.00 56,906.25
Total Cost — Task 7 $33,995.50 $43,208.92
Task 8 — Construct Groundwater Piping and Electrical Trenches
Trenching (600'x2'x4' and 300'x1'x3') $6,000.00 $36,897.50
Soil Loading, Trans oration and Disposal $18,000.00 $47,891.25
Schedule 80 PVC Piping $10,000.00 $44,322.36
Backfill Trench $8,800.00 $12,576.41
Meter Vaults $3,700.00 $6,573.00
Instrumentation $12,000.00 $2,412.05
Electrical Contractor and Heat Tracing $16,000.00 $69,959.00
Stepdown Transformer 480/230 $5,000.00 $0.00
_ _
Insulation, $4,000.00 $1,6 2 2.63
Total Cost - Task 8 $83,500.00 $222254.20
r1ty of Elgin — South Grove Avenue Properties
*;roundwater Corrective Action Plan
Estimated/Actual Cost Comparison
Estimated Actual
........ .....
Item Cost cost.
Task 9 — Construction Preparation and Construction Oversight
Principal Engineer/Scientist $4,800.00 $2,662.50
Project Engineer/Scientist II $19,500.00 $60,017.00
Draftsperson—CAD $1,600.00 $1,180.00
Clerical $120.00 $210.00
Vehicle $1,125.00 $1,239.65
Total Cost — Task 9 $27,145.00, $65.309-W
Task 10 — Prepare 0 & M Manual
Principal Engineer/Scientist $320.00 $320.00
Project Engineer/Scientist 11 $1,950.00 $3,250.00
Draftsperson—CAD $400.00 $400.00
Clerical $180.00 $180.00
Copies $150.0011 $150.00
Total Cost — Task 10 $3,000.0011 $4,300.00
Total Cost $260 477.775]1 $464,022._l OJ
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