HomeMy WebLinkAbout2008-037i
WORK ORDER NUMBER 13
This Work Order Number 13 is entered into as of this 5th day of February , 2008
pursuant to that certain Continuing Contract Agreement for Professional Services entered into as of
August 10 2004 and amended effective July 24 2007 (as so amended, the "Agreement"), by and
between Indian River County Solid Waste Disposal District, a dependent special district of Indian
River County, Florida ("District") and Geosyntec Inc., a Florida corporation ("Consultant").
The District has selected the Consultant to perform the professional services set forth on Exhibit
1, attached to this Work Order and made part hereof by this reference. The professional services will
be performed by the Consultant for the fee schedule set forth in Exhibit 2 and within the timeframe
more particularly set forth in Exhibit 3, all in accordance with the terms and provisions set forth in
the Agreement. Pursuant to paragraph 1.4 of the Agreement, nothing contained in any Work Order
shall conflict with the terms of the Agreement and the terms of the Agreement shall be deemed to be
incorporated in each individual Work Order as if fully set forth herein.
IN WITNESS WHEREOF, the parties hereto have executed this Work Order as of the
date first written above.
GEOSYNTEC, INC.
By:
%(
✓` — -0j)
Thomas A Peel, Ph D.
Title: Vice President/Principal
nolan rover County Approved Date
Administration r 3a op
Budget l
Co. Attorney
Risk Management
Department Z�
Division
X R07084/CCR08003. DOC
ungilluers I Scientists I illllo'BLUrs
INDIAN RIVER COUNTY
BOARD OF COUNT' CONWISSIONERS
By:
$& ra L. Bowdta,,Chairman
Attest.. JX. Barton, Clerk of Court
By
Deputy Clerk
Approved: I `5 V7:6
eph A. Baird, County Administrator
A proved as to form and legal sufficiency:
. a 1
William K. DeBraal, Deputy County Attorney
In
Geosyntec
consultants
Ms. Marian E. Fell
Assistant County Attorney
184025 1h Street
Vero Beach, Florida 32960
6770 South Washington Avenue, Suite 3
Titusville, Florida 32780
PH 321.269.5880
FAX 321.269.5813
www.geosynteccom
21 September 2007
Subiect: Indian River County Board of County Commissioners approval to utilize Indian
River County Solid Waste Disposal District Continuing Contract Agreement dated
10 August 2004 and amended effective 24 July 2007
Dear Ms Fell:
Geosyntec Consultants (Geosyntec) has an executed Continuing Contract Agreement for
Professional Services with Indian River County's Solid Waste Disposal District dated 10 August
2004 and amended effective 24 July 2007. Geosyntec is pleased to extend the terms and
conditions of the referenced Continuing Contract Agreement with the Indian River County Solid
Waste Disposal District to the Indian River County Board of County Commissioners.
If you
have
any questions regarding
the use
of Geosyntec's Continuing Contract Agreement,
please
do not
hesitate to contact me to
discuss
at (321) 269-5880.
XR07084/CCR07085.DOC
e;� in,�t�rs scientists I inuouaturs
Sincerely,
James J. Langenbach, P.E.
Associate
Geosyntec
consultants
EXHIBIT 1
INTERIM SOURCE REMOVAL PROPOSAL
XR07084/CCRo8003.DOC
CII STlCe[S SCICI]l1S LS I 11 It IOVit lU 7S
Geosptec D
consultants
Janet B. Dunlap, P.E.
Indian River County Capital Projects
184025 1h Street
Vero Beach, Florida 32960
Subject: Cattle Dip Site Interim Source Removal
9255 93rd Street on County Road 510
Parcel #31392600000002000001.0
Vero Beach, FL
Dear Ms. Dunlap:
6770 South Washington Avenue, Suite 3
Titusville, Florida 32780
PH321 2695880
FAX 321_269.58 13
www.gosynlec.com
2 January 2008
Geosyntec Consultants (Geosyntec) is pleased to submit this fee proposal to Indian River County
(IRC) for professional services associated with additional soil assessment and the
implementation of Interim Source Removal (ISR) activities to address arsenic impacts at a
historic cattle dipping vat located at the referenced property. This fee proposal has been prepared
in accordance with the negotiated contract between Geosyntec and IRC Solid Waste Disposal
District.
PROJECT UNDERSTANDING
Geosyntec performed an initial assessment of the referenced property in January 2007 to assess if
former cattle dipping operations had an adverse impact on the soil and groundwater. The results
from the initial investigation demonstrated that arsenic is present in vadose zone soils at
concentrations exceeding the residential soil cleanup target level (SCTL) of 2.1 milligrams per
kilogram (mg/kg) and in the groundwater at concentrations exceeding the groundwater cleanup
target level (GCTL) of 10 micrograms per liter (µg/L) and the natural attenuation default criteria
(NADC) of 100 pg/L.
XR07084/CCR08003. DOC
en iueers scientists I int3uvaturs
Janet Dunlap, P.E.
2 January 2008
Page 2
Geosyntec
consultants
As requested, Geosyntec has prepared a scope of work to (i) delineate the extent of arsenic
impacts, (ii) prepare an ISR Work Plan which provides details for the remediation of the
identified soil and groundwater arsenic impacts, (iii) implement the excavation activities and
transport of the impacted soil and groundwater, and (iv) prepare an ISR Report which provides
documentation of the excavation and soil/groundwater disposal activities. The proposed field
activities include the collection of soil samples from select locations around the former cattle
dipping vat and analysis of these samples for arsenic by a fixed based laboratory. Once the
delineation is complete (samples collected with arsenic concentrations near or below the
residential SCTL or background), an ISR Work Plan will be prepared which provides details
regarding the proposed voluntary cleanup efforts for submittal to the Florida Department of
Environmental Protection (FDEP). Upon submittal to the FDEP, excavation of the impacted area
can begin. The proposed ISR activities will include initial site preparation (tree/brush clearing
and silt fence installation), removal of the cattle dipping vat structure, arsenic impacted soil
excavation, shallow saturated zone soil excavation, and arsenic impacted groundwater extraction.
Excavated soil, concrete, and cleared brush will be transported to the IRC landfill. Landfill
disposal costs will be the responsibility of IRC. Extracted groundwater will be hauled to an
industrial wastewater treatment facility in Jacksonville, Florida.
We have
developed a task -based approach to
accomplish
this work in an organized and cost-
effective
manner. The remainder of this letter
provides a
description of the proposed scope of
work. A
budget estimate to accomplish the work described
herein is provided in Exhibit 2.
SCOPE OF WORK
Task 1— Preliminary Activities
Task 1 includes project management for the entire project, subcontracting, project coordination,
project administration, as well as preliminary activities associated with bidding the project, and
revising the Site -Specific Health and Safety Plan to reflect the proposed excavation work.
Excluding project management, much of the preliminary activities have been completed.
Geosyntec also discussed the project in general terms with the FDEP to confirm the proposed
strategy is acceptable.
X R07084/CCR08003. DOC
ullgii3BCis I SCltlrltlStS i inllo Va LolS
Janet Dunlap, P.E. Geosynte&
2 January 2008 consultants
Page 3
Task 2 — Supplemental Soil Sampling
This task consists of mobilizing to the site and collecting soil samples from six locations at three
depth intervals, a background sample and one duplicate quality assurance sample (20 total
samples) around the former cattle dipping vat. The soil samples will be located at the corners
and sides of the proposed excavation area of 25 feet (ft) x 75 ft around the former cattle dipping
vat as shown on Figure 1. The depth intervals for collection of the soil samples are 0 to 0.5 ft
below land surface (BLS), 0.5 to 2 ft BLS, and from immediately above the water table
(approximately 6.0 to 6.5 ft BLS). The soil samples will be collected in accordance with FDEPs
Standard Operating Procedures (SOPS), February 2004. Soil samples will be analyzed by a fixed
based laboratory for arsenic by EPA Method 6010. Additionally, two soil samples will be
collected at the locations with the maximum historic arsenic concentrations for toxicity
characteristic leaching procedure (TCLP) testing (required date for disposal of soil at the IRC
landfill).
Task 2 Contingency Costs. In the event additional soil sampling is required to complete the
arsenic delineation to background or residential SCTLs, contingency costs are provided for the
collection of up to 12 additional soil samples for arsenic analyses. The Task 2 contingency costs
will not be utilized without prior IRC notification and approval.
Task 3 — Interim Source Removal Work Plan
Once delineation of the arsenic impacts has been completed, an ISR Work Plan will be prepared
in accordance with Chapter 62-780, Florida Administrative Code (FAC). The ISR Work Plan
will contain all pertinent excavation and groundwater removal and transportation details. A draft
of the ISR Work Plan will be submitted to IRC for review. Any comments from IRC will be
incorporated into the final ISR Work Plan. The final ISR Work Plan will be signed and sealed by
the Florida Licensed Professional Engineer (P.E.) in responsible charge of the project and will be
submitted to the FDEP with a notification of the proposed voluntary cleanup activities.
Task 4 — Excavation
Prior to initiating
the perimeter of
excavation activities,
the proposed work
Geosyntec's subcontractor will install a silt fence around
area and grub all treesibrush located in the proposed
excavation area.
The tree/brush will
be removed from
the site and transported to
the IRC
X R07084/CCR08003. DOC
Engineers I scientists I iunuvators
Janet Dunlap, P.E.
2 January 2008
Page 4
Geosyntec
consultants
landfill.
Costs
for the transport
of the
brush and trees are included in the proposal. Costs for the
disposal
of the
brush and trees are the
responsibility of IRC.
The excavation work will be performed with standard excavation techniques and Occupational
Safety and Health Administration (OSHA) trained personnel. Personnel will not be permitted to
enter the excavation. The proposed excavation task costs are based upon a tiered excavation area
(Figure 1), with an outer excavation area of 25 ft x 75 It x 7 ft deep and an inner tier excavation
area of 15 ft x 50 ft x 4 ft deep (7 to 11 ft BLS). This excavation footprint and associated soil
volume could increase based upon the results of the delineation sampling. Upon excavation, the
soils will be hauled to the IRC landfill for disposal. Costs for the transport of the excavated soils
are included in the proposal. Costs for the disposal of the excavated soils are the responsibility
of IRC. Additionally, up to 7,000 gallons of groundwater will be extracted from the center of the
excavation area by a vacuum truck. The volume of groundwater was calculated using the volume
of the inner tier excavation area (3,000 cubic feet) and an assumed porosity of 0.3. The extracted
groundwater will be hauled by the vacuum trucks for proper disposal at an approved industrial
wastewater treatment facility (Jacksonville, FL). Costs for the transport and disposal of the
extracted groundwater are included in the proposal. Upon completion of the groundwater
extraction activities, the excavation area will be backfilled with clean backfill.
To evaluate the impact of the saturated zone excavation and groundwater extraction, a
confirmation groundwater sample will be collected from the center of the excavation area. It is
anticipated that one of the previously installed shallow monitoring wells will be removed prior to
excavation and will be reinstalled prior to backfilling activities. The groundwater sample will be
collected from the re -installed monitoring well in accordance with FDEPs SOPS, February 2004,
and analyzed by a fixed based laboratory for arsenic by EPA Method 6010.
Task 4 Contingency Costs. An excavation expense contingency cost has been added to this
proposal to provide funding for a larger excavation area should laboratory analysis demonstrate
that arsenic concentrations above the SCTL extend beyond the proposed 25 ft x 75 ft excavation
area. The contingency costs assume that the excavation volume increase will not exceed 150
cubic yards. The Task 4 contingency costs will not be utilized without prior IRC notification and
approval.
XR07084/CCR08003. DOC
cilgiliculS I SCiellLiAS I ltilloViLOIS
Janet Dunlap, P.E. GeOSynte&
2 January 2008 consultants
Page 5
Task 5 — Interim Source Removal Report
An ISR Report will be prepared upon completion of the excavation activities. The ISR report
will provide details of the excavation implementation activities, soil and groundwater disposal
documentation, excavation details, and will include photographs documenting the ISR
implementation. A draft copy of the ISR Report will be submitted to IRC for review. Upon IRC
approval, the final ISR Report will be signed and sealed by the Florida Licensed P.E. in
responsible charge of the project and will be submitted to IRC and the FDEP.
ASSUMPTIONS
The following assumptions were made in developing this fee proposal:
• No permits will be required for the removal of trees that are located within the general
excavation area.
• Excavated soil, dipping vat concrete, and trees/brush will be transported to the IRC Class
I landfill for disposal as non -hazardous waste. Costs for disposal at the IRC Landfill are
the responsibility of IRC.
• Extracted groundwater (up to 7,000 gallons) will be disposed of at an industrial
wastewater facility in Jacksonville, Florida as non -hazardous waste. Costs for
transportation and disposal of groundwater are included in this proposal.
• IRC staff will sign/execute all waste disposal manifests.
• All site work can be performed in Level D personal protective equipment.
• Geosyntee will be able to work unimpeded between Monday and Friday from 7 am - 7
pm.
ESTIMATED BUDGET
The fee proposal is provided as Exhibit 2.
XR07084/CCR08003.DOC
engineers scientists I mnu\aturs
Janet Dunlap, P.E.
2 January 2008
Page 6
CLOSURE
Geosyntec
consultants
Geosyntec appreciates the opportunity to submit to IRC the attached fee proposal (Exhibit 2) for
services at the referenced site. An anticipated project schedule is included as Exhibit 3. If this
proposal is acceptable to you, please indicate your agreement by signing the Work Order, which
references this proposal. Please return one signed Work Order to Mr. Langenbach's attention.
Please call either of the undersigned with questions you may have as you review this fee
proposal.
Sincerely,
James J. Langenbach, P.E.
Senior Engineer
' uUk � �''&-&/�
Thomas A. Peel, Ph.D.
Florida Operations Manager/Principal
Attachments
XR07084/CCR08003. DOC
cllgille('is I scientists I intlovd LOlb
Geosyntec°
consultants
EXHIBIT 2
COST PROPOSAL
X R07084/CC RO8003. DOC
crgincors I scientists I miiuvalois
a
aQ
�
y
Y
�
O
L
y
o
O
X
F
0
C
a
OC
M
69
69
65
O
R
69
69
�
~
o
vl
�
GAJ
�
Q
t�
�+
C
7
O
v�9
U
�
�
fP
69
4�
H3
�
Y
p
R
O
O
7
U
n
c
rr
L
O•
O
N
M
ev
C
M
F
p
CPC
R
c
59
�9
65
�
69
6A
69
o
A
n
=
N
i
R
U
�
y
Y
�
O
C)
y
o
O
X
F
z
Y
y
R
�
F
o
O
a
M
0
C
a
OC
31 1S
O
O
oC
O
O
O
M
O
C
69
OC
M
69
69
65
69
:A
31 1S
O
O
oC
O
O
O
M
O
C
69
OC
M
69
Y3
Vi
O
O
oC
O
l�
h
N
M
O
69
69
�
Ic
o
vl
�
�
�
Q
t�
vi
C
7
v�9
6�n
fP
69
4�
H3
p
O
O
O•
O
N
M
ev
C
M
OG
l�
59
�9
65
�
69
6A
69
O
Vl
vl
�
V
V
v�9
6�n
fP
69
O•
O
N
M
C
M
OG
l�
59
�9
65
69
N
Geosyntec
consultants
EXHIBIT 3
SCHEDULE
XR07084'CCR08003. DOC
:ngificurs I scientists I jmto aiw5
Geosyntec
consultants
EXHIBIT 3
SCHEDULE
Former Cattle Dip Excavation
9255 93rd Street
Vero Beach, FL
Upon approval of the Work Order, it is anticipated that Geosyntec will complete additional soil
sampling activities in February 2008. After the delineation of the arsenic impacts, it is expected
that the ISR Work Plan will be submitted to the FDEP in March 2008. Excavation will begin
after submittal of the ISR Work Plan and is projected for April/May 2008. After excavation
activities are complete, the ISR Report is anticipated to be submitted in June 2008.
XR07084/CCR08003.DOC
ctiinee�s l scientists I iunuva.cr5
Geosynte&
consultants
EXHIBIT 4
FIGURE 1 PROPOSED EXCAVATION AREA
XR07084CCR08003. DOC
engineers I scientists I irttuw.�ltur<_
Z-DBCFF
ft P,
FF e r.
r FF
'-
F.
t FF FF
FF
FIr
m
FF
C 1 t �¢f
mI
6
IjIC IF I
n
F
ft I
UUU
Iff% FF If I
IF I
^Tjr i�L I It If
i
Nit4AiiY l I FI IF L1 ,v.. "- II r
^ro
�5'I F, �{ a 'pf ai'S 4 1 FF
�6 tEi's`fPt0 ! 1
l a k P
11It. F, 1 1 4 r
y
IYFF
FF L FF r. tp I
I Itr
s'L I IF,sK` r oFF
-
F ]
1 X_�rt `S + %�
R
n til"IF
ar01 It I r
- - y^� �p �., _ 1, -
[ i 11 1
(%1 r } q
y i '.9 yr Q , FF r
fF
1 ®_ S4V®W7rld5 FfR
4D
' '
FF I, FF'p+'
r
x i ?r�F.
i i
�li
IL n FF
�f
%
3d F�yh5�
�rA
pFI i +� , y ,i iI FF
r
y D Y
} 4
D FF
FIFF
5 FF 11 u
y
0-4 10 11
C 9 Q &
g 5 6
c n i 5c
p4+'
�®
�.ff Id
! l Pe,G J�L J