HomeMy Public PortalAboutAddendum No. 1 to Contract 184-2010 with AECOM Technical ServicADDENDUM
THIS ADDEND M (Number 1 to Contract No. 184-2010) is made and entered into this
day of , 2012, by and between Richmond, Indiana, a municipal
corporation acting through x s Board of Public Works and Safety with its office at 50 North 5 h'Street,
Richmond, Indiana, (hereinafter referred to as "City"), and AECOM Technical Services, Inc., 1800
West 17a' Street, Suite A, Bloomington, Indiana, 47404 (hereinafter referred to as "Contractor").
WHEREAS, City and Contractor entered into Contract No. 184-2010 on December 9, 2010; and
WHEREAS, City wishes to continue to accept Contractor's proposal in connection with Contract
No. 184-2010 which proposal supplements the environmental remediation services
provisions of said Contract.
NOW, THEREFORE, in consideration of the mutual promises and covenants herein contained,
including the above stated recitals, City and Contractor hereby agree as follows:
1. The City and Contractor executed and entered into Contract No. 184-2010, on
December 9, 20I0.
.2. Contractor's proposal is dated June 5, 2012, and contains, in part, the negotiated
additional fees for the above -described services in connection with said additional
environmental remediation service provisions of Contract No. 184-2010. Said
proposal is attached hereto as Exhibit A and incorporated by reference. Contractor
agrees to abide by the same.
3. City shall pay Contractor the total supplement request not to exceed Fifty-seven
Thousand Eight Hundred Forty-three Dollars and Zero Cents ($57,843.00) for the
additional environmental remediation services provided by Contractor as set forth in
Exhibit A in connection with Contract No. 184-2010.
4. Both parties agree that in accordance with Indiana Code 22-5-1.7-1 et seq., all service
contracts entered into or renewed after June 30, 2011, must include the Indiana E-
Verify Program Requirements, which requirements are set forth and incorporated into
Contract Number 184-2010 as follows:
SECTION XII. COMPLIANCE WITH INDIANA E-VERIFY
PROGRAM REQUIREMENTS
Pursuant to Indiana Code 22-5-1.7, Contractor is required to enroll. in
and verify the work eligibility status of all newly hired employees of
the contractor through the Indiana E-Verify program. Contractor is
not required to verify the work eligibility status of all newly hired
employees of the contractor through the Indiana E-Verify program if
the Indiana E-Verify program no longer exists.
Addendum No. l to Contract No. 18420,10
? Page 1 of 2
Prior to the performance of this Agreement, Contractor shall provide
to the City its signed Affidavit affirming that Contractor does not
knowingly employ an unauthorized alien in accordance with IC 22-5-
1.7-11 (a) (2). In the event Contractor violates IC 22-5-1.7 the
Contractor shall be required to remedy the violation not later than
thirty (30) days after the City notifies the Contractor of the violation.
If Contractor fails to remedy the violation within the thirty (30) day
period provided above, the City shall consider the Contractor to be in
breach of this Agreement and this Agreement will be terminated. If
the City determines that terminating this Agreement would be
detrimental to the public interest or public property, the City may
allow this Agreement to remain in effect until the City procures a new
contractor. If this Agreement is terminated under this section, then
pursuant to IC 22-5-1.7-13 (c) the Contractor will remain liable to the
City for actual damages.
5. Contractor agrees that no work shall commence until the City is in receipt of any
required affidavit signed by Contractor in accordance with Indiana Code 22-5-
1.7-11(a)(2).
IN WITNESS WHEREOF, this Addendum is executed and approved by the undersigned
representatives of the City and Contractor this day of �G( , 2012
"CITY"
THE.CITY OF RICHMOND,
iNDIANA by and through its
Board of Public Works and Safety
Date: %
"CONTRACTOR"
AECOM Technical Services, Inc.
1800 West 1701 Street, Suite A
Bloomington, IN 47404
Title. �IiY� �r►�iawa� E++�'i'Vyy1�i•4[�t7 �:
Date: 7/Z0 Aort
Page 2 of 2
i
AECOM 317.735,3015 tel
8902 Vincennes Circle 317.293.4295 fax
Indianapolis, IN 46268
June-5, 2012
Mr. Tony Foster 11
City of Richmond
'Executive Director
Department of Metropolitan Development
50 North 5th Street
Richmond, IN 47374
Subject: Proposal for Cleanup Efforts to Define the Plume and
Develop a Groundwater Remediation Work Plan
Former MGP Site
Richmond, Indiana
IDEM Brownfields No. 4980004
Dear Mr. Foster:
AECOM Technical Services, Inc. (AECOM) is pleased to submit this proposal to the City of
Richmond (the City) to conduct cleanup efforts to define the plume and develop the groundwater
Remediation Work Plan (RWP) for the Former Manufactured Gas Plant (MGP) site located at 16
West Main Street in Richmond, Indiana (Site).
The Site is enrolled in the Indiana Brownfields Program and is assigned site number 4980004. The
cleanup efforts and RWP are being completed at the request of the Indiana Department of
r 3 Environmental Management (IDEM) Brownfield Section in order to secure United States
Environmental protection Agency (US EPA) approval and maintain Brownfield loan eligibility for
these activities. The Brownfield redevelopment program for this Site includes installation of a
recreational pedestrian walk and bike trail for the citizens of Richmond.
The City has an approved Remedial Action Work Plan (RAWP) to address source areas and
chemicals of concern (COCs) in the tar well area, basement area, and SB-14 area. A targeted
removal action for these known source areas is presented in the existing RAWP and is currently
scheduled for June 2012. The purpose of the additional cleanup efforts proposed herein is to define
the plume of COC impacted groundwater and to develop the remedial strategy to reduce and/or
destroy the COC mass in the plume. The RWP will be appended to the existing Site RAWP.
Summary of Previous Site Activities
Site investigations were conducted at the Site between 1994 and 2011 to delineate soil and
groundwater impacts associated with the former Richmond MGP Site through means of records
searches, subsurface structure identification, local hydrogeological investigations, surface and
subsurface sampling, installation of groundwater monitoring wells, and laboratory analysis of soil
and groundwater samples. Information and findings from previous Site investigative efforts is
provided in a number of documents as summarized in section 1.2.1 of the RAWP.
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AECOM Cleanup Efforts to Define the Plume
Develop a Groundwater Remediation Work Plan
Former MGP Site
Richmond, Indiana
The results of these investigations provided sufficient data to delineate source areas in soil. This
information was utilized to prepare the approved RAWP in November 2011. Following the initiation
of the RAWP, the IDEM Brownfield representative requested that the City's cleanup efforts include
remediation of groundwater by reduction and/or destruction of COC mass in the plume.
AECOM's proposed scope of work and associated schedule and cost information to conduct
cleanup efforts to define the plume and develop the groundwater RWP are presented below.
Scope of Work
AECOM's scope of work for additional groundwater investigation and RAWP revision will consist of
the following tasks:
Task 100 — Existing Data Review
• Review existing data
• Prepare a figure and letter work plan defining the scope of work (anticipate
installation of 5 monitoring wells
Task 200 --Expand Monitoring Well Network
• Monitoring well installation and development
Task 300 — Sample Monitoring Well Network
• Water level measurement
} . Groundwater sample collection (low -flow methodologies)
• Laboratory Analysis: COCs, In -Situ Chemical Oxidation (ISCO) Treatment
Parameters
• Slug testing
Task 400 — Remedial Option Development
• Revision of Conceptual Site Model (CSM) and development of remedial options
based on comprehensive data set.
Task 500 -- RWP Preparation Revision
• Present Remedial Options to the City of Richmond and IDEM
• Select Preferred Remedial Option
• Develop RWP
• Incorporate Into Site RAWP
Task 600 — Brownfield Grant Coordination
• IDEM and USEPA Coordination
+ Third Party Correspondence
A more detailed description of each of these tasks is provided below.
Task 100 -- Existing Data Review & Preparation of Brief Letter Work Plan & Figure �.
Review Historical Data
Initially, AECOM will review the previous Site data to establish the most up to date understanding of
the COC plume conditions and the current Conceptual Site Model (CSM). This review will focus on
historical site ground water conditions and include the existing RAWP and all available previous Site
EXHIBIT PAGE _ 4F
AECOM Cleanup Efforts to Define the Plume
Develop a Groundwater Remediation Work Plan
Former MGP Site
Richmond, Indiana
investigations referenced in the RAWP. Of particular interest will be historical groundwater
conditions including COC impacts and flow direction. This review will also focus on the previous
pump test evaluation in order to determine Site specific groundwater flow conditions for COC
transport considerations.
Determine Additional Monitoring Well Locations
Once the current plume conditions are established and understood within the context of previous
Site groundwater investigations, AECOM will determine optimum locations to install additional
groundwater monitoring wells. The purpose of this monitoring well installation program will be to
select locations which will define the plume of COC impacted groundwater. It is anticipated that this
will require the installation of at least 5 additional groundwater monitoring wells. At least one of
these monitoring wells will be installed southeast of the Site in an upgradient location with respect to
anticipated groundwater flow toward the Whitewater River. To date, background conditions have not
been established for the Site. This is important to determine if there is an additional source of
COCs identified at the Site which are not the result of fomner MGP operations and to define the
upgradient extent of the plume.
In addition to the upgradient monitoring well, it is anticipated that at least 4 groundwater monitoring
wells will be installed at the Site. These monitoring wells will be installed to the west, northwest and
north of the Site in lateral and downgradient locations in order to define the plume of COC impacted
groundwater with respect to probable groundwater flow toward the Whitewater River. This number
may be modified based upon the results of the historical data and current CSM review.
Prepare a Brief Letter Work Plan and Figure
Prior to mobilization to the Site to install the new monitoring wells, AECOM will prepare a brief letter
work plan and figure to document the scope of and identify the proposed monitoring well locations
on a Site Plan. This report will be submitted to the City for review and approval in consultation with
the IDEM. This proposal assumes that the City will provide access to onsite and offsite sample
locations (i.e., monitoring wells).
k
Task 200 — Expand Monitoring Well Network
Install Monitoring Wells
Once the locations of the new monitoring wells are approved by the City and IDEM, AECOM will
return to the Site and install these additional wells to further define the plume. This monitoring well
installation program will include advancement and continuous sampling of 5 borings to facilitate
installation of 2-inch diameter monitoring wells, with a maximum anticipated depth of 20 feet below
ground surface (ft-bgs).
As borings are advanced to facilitate monitoring well installation, soil will be classified, characterized
and logged on AECOM boring log forms in general conformance with ASTM Methods. Monitoring
wells will be constructed in these borings in general conformance with ASTM Methods D 5784 and
D 5092. Monitoring wells will be constructed of 2-inch (nominal) diameter schedule 40 PVC screen
and casing. Screens will be ten (10) feet in length, with machine -cut slots of 0.010-irich width.
Screens will be placed such that the screened interval "straddles" the water table and level of
surface water in the Whitewater River. A filter pack comprised of clean quartz sand of uniform grain
size will be placed in the annulus between the well screen and borehole wall, from the bottom of the
boring to a depth not less than 2 feet above the top of the well screen. The remainder of the
annulus will be filled with bentonite to within 2 feet of the ground surface. Each well will be
EXHIBIT PAG :. '� OF
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AECOM Cleanup Efforts to Define the Plume
Develop a Groundwater Remediation Work Plan
Former MGP Site
Richmond, Indiana
completed with a locking cap and either a protective cover extending approximately 30 inches
above grade, or with a flush -mount cast iron cover. Protective covers will be set in concrete.
Well Development
The newly installed monitoring wells will be developed not less than 24 hours after completion of
well construction. In addition to these wells, this task will include redevelopment of offsite monitoring
wells MW-101 and MW 102 due to their importance with regard to plume delineation.
Development will consist of over -pumping and surging. Development will be conducted at a flow
rate sufficient to remove fine grained sediment from the well while minimizing drawdown of the
water level within the well. The turbidity of the water removed during development will be monitored.
Development will continue until turbidity has stabilized at the lowest value attainable or a maximum
of ten times the volume of water within the well has been removed. Field records will include the
volume of water removed, the nominal flow rate, the duration of the development effort and the
turbidity of the water removed, in general conformance with ASTM Method D5521. Water removed
during development will be securely contained on site for subsequent disposal at an appropriately
permitted facility based on the waste characterization of this material.
Following completion of all new monitoring wells, a survey will be conducted to determine the
horizontal location of each well relative to the State Plane Coordinate System and the elevation of
both the ground and the top of well casing. It is assumed that survey services will be provided by
the City of Richmond. Location and elevation coordinates will be incorporated into boring logs.
Task 300 — Sample Monitoring Well Network
Water Level Measurement
Fallowing installation and development, static ground water levels will be determined in the newly
installed monitoring wells by direct measurement with reference to the top of casing at each location
in general conformance with ASTM Method D 4750. Each monitoring well will be gauged utilizing
an electronic oil -water interface probe to detect the presence of product, as free product has been
identified historically in monitoring wells MW 001 and MW-005. The interface probe will also be
utilized to determine the depth to groundwater in each monitoring well. Water levels in the
previously installed well network will also be measured at this time. The elevation of the
potentiometric surface will be determined by calculation using the water level data and the
reference elevation for each well. The ground water flow direction will be inferred based on the
elevation of the groundwater surface as so determined.
Any free product identified during this phase of the project will be collected from the monitoring
wells utilizing a peristaltic pump equipped with dedicated poly tubing and transferred to a 55 gallon
steel drum and stored onsite to await disposal arrangements.
Groundwater Sample Collection and Anal sis
Following measurement of static water levels, water will be purged at flow rates ranging from
approximately 100 to 500 millifiterslminute from the each well at the Site (13 monitoring wells) to
prepare for sampling. During purging, the stabilization of water levels and select water quality
parameters will be monitored. An in -line water quality meter will be used to determine when natural
flow paths have been reestablished and formation water is being evaluated. Best efforts will be
made to achieve the following: pH constant within 0.1 Standard Unit, temperature and specific
conductance constant within 10%, and turbidity less than 10 NTU or constant within 10% if greater
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AECOM Cleanup Efforts to Define the Plume
Develop a Groundwater Remediation Work Plan
Former MGP Site
Richmond, Indiana
than 10 NTU. Following stabilization, the in -line water quality meter will be disconnected and
sampling will be initiated.
Up to 13 groundwater samples will be collected from the monitoring well network and submitted to
an environmental laboratory for BTEX, PAH, RCRA heavy metal and total cyanide in an effort to
completely define the plume. Previous Site investigations have included weak acid dissociable
(WAD) cyanide analyses, however, no levels of concern have been identified at the Site. Therefore,
WAD cyanide analyses will not be conducted during this investigation.
One duplicate sample and one trip blank will be used for QAIQC to assess the sampling and
analytical program. Groundwater samples will be prepared and packaged at the point of sampling,
shipped with ice in a cooler, and delivered under standard chain -of —custody procedures to an
accredited IDEM-approved analytical laboratory for chemical testing. AECOM will utilize a typhoon -
type down -hole pump utilizing low -flow sampling methodology for all groundwater sampling
activities in accordance with IDEM preference.
It is likely that one remedial option to destroy the COC plume at this Site is in -situ chemical
oxidation (ISCO). In order to determine if Site conditions are amenable to ISCO remediation, a soil
sample will be collected from one of the downgradient, offsite well locations by use of Shelby Tube
or similar direct push method. This sample will be forwarded to a materials testing laboratory for
porosity, permeability and total organic carbon (TOC) analysis. To further characterize the Site
conditions for possible ISCO remediation, one sample will be collected from the monitoring well at
this location and analyzed for total and dissolved iron (Fe) and magnesium (Mg).
Slug Testing
It is possible that a pump and treat groundwater system may be proposed as a remedial option to
remove COC mass from the plume. As such, hydraulic conductivity of the subsurface material at
the Site must be considered. Slug testing to determine Site specific hydraulic conductivity was
performed previously and data from this event will be reviewed as part of Task 1. If supplemental
data is deemed necessary, AECOM will perform a slug test on one of the newly installed wells
using a single -well in situ hydraulic conductivity testing procedure. A solid cylinder (slug) of known
volume will be used in the test to displace the water in the well casing. A rising head test will be
performed on this well where the screen is partially submerged, and a falling head test followed by
a rising head test will be performed if the screen is completely submerged. A pressure transducer
,'will be used to measure the changes in hydraulic head within the well casing throughout the slug
test. An electronic data logger will be used to record the transducer measurements. The test data
will be presented graphically and analyzed using the appropriate method, to be determined based
on field conditions. The results will be used to calculate the hydraulic conductivity of the saturated
zone around the well screen to support a pump and treat system design recommendation.
Task 400 — Remedial Option Development
Data collected during field activities will be incorporated into the comprehensive data set and used
to revise the CSM and develop remedial options that reduce and / or destroy COC mass in the
plume. Preliminary remedial options considered will include ISCO and / or groundwater pumping
and treatment. Additional options may be considered based on data collected in the field.
As part of this task, AECOM will present the selected remedial options to the City and the IDEM
Brownfield representative for consideration. Upon consensus, AECOM will prepare the formal RWP
to address groundwater.
EXHIBIT PAGE COI=
AECOM Cleanup Efforts to Define the Plume
Develop a Groundwater Remediation Work Plan
Former MGP Site
Richmond, Indiana
Task 600 — RWP Preparation Revision
The RWP will provide an evaluation of remedial options designed to reduce or destroy the mass of
COCs such as pumping and treatment (removal) or ISCO (destruction) as suggested above. The
RWP will be incorporated into the existing RAWP as an addendum and this updated RAWP will be
submitted to IDEM for review and approval. Following IDEM approval, the RWP will be
implemented in accordance with the scheduled included in the updated RAWP.
Task 600 — Brownfield Grant Coordination
Throughout the course of this project, AECOM will support the City of Richmond with third party
correspondence, particularly with the IDEM and US EPA Brownfield representatives. This task may
also include correspondence with other parties potentially involved with the remedial and Brownfield
program such as public and private utilities, the Indiana Department of Transportation (INDOT) and
other government entities. Correspondence may also include written and verbal communication
with local media outlets such as the Richmond Palladium Item Newspaper.
Project Schedule
It is our understanding that this project must be completed by the end of August 2012 to maintain
Brownfield funding eligibility. The following timeline is proposed to meet this completion date:
06/04/12
06/23/12
100
Existing Data Review & Preparation of Letter Work Plan & Figure
200
Expand Monitoring Well Network
06/25/12
07/03/12
ry
300
Sample Monitoring Well Network
07I05/12
07/20/12
400
Remedial Option Development
07/23/12
08/03/12
500
1 RWP Preparation Revision
08105/l2
08/31/12
600
1 Brownfield Grant Coordination
06/04/12
08/31/12
Duradon
s�
Y
Project Budget and Project Assumptions
,The estimated budget to complete the proposed scope of work will be a lump fee of $57,843. Our
budget will not exceed this cost estimate without prior authorization from the City. Project work will
be conducted in accordance with the General Terms and Conditions of AECOM's existing contract
with the City.
A task by task breakdown of this budget estimate is presented in the following cost summary table:
EXHIBIT ..L PAGE OF
AECOM Cleanup Efforts to Define the Plume
Develop a Groundwater Remediation Work Plan
Former MGP Site
Richmond, Indiana
Ogg
Existing Data Review & Preparation of Letter Work Plan &figure
$3,784
100
200
Install Additional Monitoring Wells
$17,145
300
Sample Monitoring Well Network
$15,477
400
Remedial Option Development
$9,332
500
RWP Preparation Revision
$8,566
600
Brownfield Grant Coordination
$3,540
Subtotal
$57,843
AECOM assumes the following based on the above cost estimate:
• The City will provide site access to the Site and offsite locations for field activities.
• These costs assume that 5 additional monitoring wells will be installed at the site. If
required, additional monitoring wells will be installed for a cost of $3,260 each.
• The cost for sampling of the existing monitoring well network, including slug testing is
estimated at up to four (4) consecutive 8-hr field days with a two -person AECOM field crew.
• The cost for sampling of the monitoring well network includes analysis of up to 13
groundwater samples for BTEX, PAHs, RCRA heavy metals and total cyanide. Additional
samples will be analyzed for a cost of $265 each. If requested, WAD cyanide analysis can
be provided for a cost of $39 per sample analysis.
• The cost for sampling also includes collection and analysis of one soil sample for porosity,
permeability and TOC analysis. Additional analysis can be provided for a cost of $50 per
sample.
• AECOM will not encounter delays beyond our reasonable control at the Site to include, but
not be limited to, weather conditions, labor strikes, access restrictions, construction, or rail
yard maintenance that would prevent access to the Site once AECOM personnel have
mobilized to the Site.
• A draft revised RWP will be submitted to the City for review, comment and addition of
signatures. The final revised RAWP will be forwarded to the City for shipment to IDEM.
Report production and shipping costs are not included in this proposal. AECOM will publish
and ship finalized reports to IDEM at the City's request; however, these costs have not
been included in the project cost estimate and will be charged to the project.
P
r,
�4uthorization
Please sign the attached acknowledgement as your written acceptance of AECOM's Proposal to 1
conduct cleanup efforts to define the plume and develop the groundwater RWP at the former MGP
in Richmond, Indiana for $57,843.
EXHIBIT PAGE ` 14
AECOM Cleanup Efforts to Define the Plume
Develop a Groundwater Remediation Work Plan
Former MGP Site
Richmond, Indiana
We appreciate the opportunity to submit this proposal and look forward to continue working with you
at the Site. Please feel free to contact the undersigned if you have questions regarding this
proposal.
Sincerely yours,
AECOM Technical Services, Inc.
Brooks R. Bertl, P.E., L.P.G.
Senior Project Manager
317-735-3015
0-1
Jeffrey P. Nelson
Department Manager
812-334-8311
�EXH�BITr _ _PAGE OF
AECOM Cleanup Efforts to Define the Plume
Develop a Groundwater Remediation Work Plan
Former MGP Site
Richmond, Indiana
Work Authorization
AECOM Proposal Dated .tune 5, 2012
I hereby authorize AECOM to proceed with the scope of work to conduct cleanup efforts to define
the plume and develop the groundwater RWP for the former MGP site located at 16 West Main
Street in Richmond, Indiana, described in AECOM's proposal dated June 5, 2012, with a budget
authorization of $57,843 under the current contractual agreement between AECOM and the City of
Richmond.
Signature Date
Print Name
Title/Organization
I agree to accept invoices from AECOM via e-mail and not postal mail:
Yes
}
Signature:
E-mail address: "
Recipient Mr/Ms:
1
Return to:
Brooks Bert]
AECOM
,Z902 Vincennes Circle, Suite D
Indianapolis, IN 46268
e
-
Fax: (317) 735-3015
E-Mail: brooks.bertIO-aecom.com
— F.
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