Agenda 06/22/2010 Item #16A17
Agenda Item No. 16A1?
June 22. 2010
Page 1 of 14
EXECUTIVE SUMMARY
Recommendation to approve Change Order 2 for Work Order URS-FT-3657-07-11
with URS Corporation Southern (URS) that authorizes $49,440 for Phase 2 work
and reduces the contract cost by $40,142.50 for a revised total contract cost of
$158,697.50 to provide Project Management and Oversight services for the
development of Watershed Management Plans required by the Growth
Management Plan
OBJECTIVE: To protect Collier County water resources. The County will utilize URS
for Project Management and Oversight Services to provide review of model calibration
and other technical reports for the Watershed Management Plans (WMPs) and reduce the
total cost of the contract by $40,142.50.
CONSIDERATION: URS was hired to provide Project Management and Oversight
Services for Watershed Management Plans in 2007. Development of the South West
Florida Feasibility Study by the U.S. Army Corps of Engineers and the South Florida
Water Management District allowed us to hire one consultant (Post Buckley Schuh and
Jernigan) instead of several. The utilization of one firm to develop the WMPs reduced
the need for Project Management and Oversight services sib'11ificantly. The Change
Order authorizes $49,440 for Phase 2 work and reduces the cost of the work order due to
the reduction in duties. However, the delays caused by waiting for the LiDAR
information necessitated a time extension of 533 days for the completion ofURS's tasks.
The currently approved work order for $198,840 will be reduced by $40,142.50 to a total
of $158,697.50. This time extension will maintain the current schedule for the
completion of these tasks in August 2010.
FISCAL IMP ACT: The original work order for $198,840 approved in 2007 will be
reduced by Change Order 2 $40,142.50 resulting in a total cost of$158,697.50. This is a
time and materials work order and cost will be billed to the County for work performed.
The reviews produced in Phase 2 will be used to complete the WMPs. The Board of
County Commissioners as part of the FY 2007 approved budget allocated $4,000,000 in
General Fund (001) money to fund this initiative. The original FY 2007 program
allocation less that spent in subsequent years was re-budgeted in FY 2010. Expenses
incurred in FY 2007, FY 2008, and FY 2009 resulted in the FY 2010 available budget for
this program of $2,516,000. There are sufficient funds in Fund and cost center 001-
13 8347 to cover the costs of this contract.
GROWTH MANAGEMENT IMPACT: Execution of the work order will support
objectives 2.1 of the Conservation and Coastal Management Element of the County
Growth Management Plan.
~.
LEGAL CONSIDERATION: This item has been reviewed and approved for legal
sufficiency. HFAC
Agenda Item No. 16A17
June 22, 20',0
Page 2 of 14
RECOMMENDATION: That the BCC approves Change Order 2 URS-FT-3657-07-11
to URS to provide Project Management and Oversight Services for the Watershed
Management for a total cost not to exceed $158,697.50 and authorize the County
Manager or his designee to execute the Change Order.
Prepared by: Mac Hatcher, Senior Environmental Specialist, Land Development,
Stormwater and Environmental Planning, Growth Management Division - Planning and
Regulation
Attachments: 1) Change Order 2
Item Number:
Item Summary:
Meeting Dale:
Agenda Item No 16A17
June 22. 2010
Page 3 of 14
COLLIER COUNTY
BOARD OF COUNTY COMMISSIONERS
16A17
Recommendation to approve Change Order 2 for Work Order URS-FT-3657-07-11 with URS
Corporation Southern (URS) that authorizes $49,440 for Phase 2 work and reduces the
contract cost by $40,142 for a revised total contract cost of $158.698 to provide Project
Management and Oversight services for the development of Watershed Management Plans
required by the Growth Management Plan.
6/22/20109:00:00 AM
Prepared By
Mac Hatcher
Communi~ Development &
Environmental Services
Environmental Specialist. Senior
Date
Engineering & Environmental Services
6/3/20109:47:47 AM
Approved By
Gerald Kurtz
Transportation Division
Project Manager, Principal
Date
Transportation Road Maintenance
6/7/20104:28 PM
A pproved By
Norm E. Feder, AICP
Transportation Division
Administrator - Transportation
Date
Approved By
Transportation Administration
6/8/20109:28 AM
Lyn Wood
Administrative Services
Division
Contracts Specialist
Date
Purchasing & General Services
6/8/2010 4:40 PM
Approved By
Judy Puig
Community Development &
Environmental Services
Operations Analyst
Date
Community Development &
Environmental Services
6/9/20108:21 AM
Approved By
Nick Casalanguida
Transportation Division
Director ~ Transportation Planning
Date
Transportation Planning
6/9/20109:22 AM
Approved By
William D. Lorenz, Jr., P.E.
Community Development &
Environmental Services
Director ~ CDES Engineering Services
Date
Engineering & Environmental Services
6/9/2010 9:46 AM
Approved By
Heidi F, Ashton
County Attorney
Section Chief/Land Use~Transportation
Date
County Attorney
6/9/20102:56 PM
Agenda Item No. 16A17
June 22. 2010
Page 4 of 14
Approved By
Jeff Klatzkow
County Attorney
Date
6/10/20109:41 AM
Approved By
Steve Carnell
Director - Purchasing/General Services
Date
Administrative Services
Division
Purchasing & General Services
6/11/20108:34 AM
Approved By
OMS Coordinator
Date
County Manager's Office
Office of Management & Budget
6/11/20109:33 AM
Approved By
Leo E. Ochs, Jr.
County Manager
Date
County Managers Office
County Managers Office
6/14/201010:18 AM
Agenda Item No 16A1T
June 22. 2010
Page 5 of 14
bo,,,,1\ LSCc..
CONTRACTIWORK ORDER MODIFICATION
CHECKLIST FORM
r:r:~o;.e;;.~~:..;~'Tr~MlJna_p- PRO.JECT#: /JI^ PROJECT MANAGER: Mac H."""'r
.l"-~'" #: Ilil(fD II: PO#: 4500102994 WORK ORDER' UR5-FT -3&S7047-1/
Rtv'su!
DEPARTMENT: Enalneetlna &Envlronmentlll Services
COHTRACTORIFIRM NAME: 1l.Bi.
Ortllln.1 Contract Amount: S 1118.1140
(Starting Point)
CUrNnt BCC Approved Amount S 198.840
(Last T otol Amount Approved by the BCC)
Culftnt Contract Amount S 198.840
(Including All Ch..,get Prior To Thi. Modification)
Change Amount: S /40.142 .50)
Revlaad ContractlWork Drd... Amount: S 118 11II, f Sf, Co"!"'!." 0
(Including This Change Order)
Cumulative DoUar V.'ue of CIIa_lIO
thle ContractlWork Order: S /40.142.'0)
0.. of Last BeC Approval s.__ 25. 2007
Agenda Ifam , .-!2.L
Pe~ of the ch.ange ....rfunder cu....nt contract amount 20 "
Fonnul.: (R...sed Amount I Last BCC approved amount)-1
CURRENT COMPLETION DATE (5): ORIGINAL: Man:h 29. 2008 CURRENT:
~uat 15. 2010
D_crlbe the chang.(a,: Add Planned Ph... 2 of Drofect. the W......hed M.naaemant
Dl.ns
Specify the ....ona for the Ch.nge(.) X 1. Plann.d or Elsctlve X 2. Unfo_n Condltlona (" 3. Qu.ntIty
AdJuetments (" 4. Correction of EITO.. (Plana, Speclftcetlon. or Scope of WOrk) (" 5. Velue Added
(" I. Schedule AdJuatments Hots: One or mo.. may be checked, depending on the _.. of the ch.nge(s).
Identify .11 negative Impacts to the project If this ch.nge order we.. not proc_ed: Growth M.naaement Plan
reauired studi_ would not be comDIated.
This ch.nge was requ..led by: rIcontractor/Conaultant ~wner n Using Department X GMD
Co..lgn ProfrIuion.1 nRegulatory Agency (Specify) r other (Specify)
r Yes ~o
CONTRACT SPECIALIST PARTiCIPATION IN NEGOTIATIONS:
Th. form . to be signed end ~'t':.
APPROVED BY: IAA ~. fitlr-l-
Project Manager
APPRO~BY: ~
REVIEWED BY: ~ 11)
Contract clalist
Revised 2-22-08
Date:
1013/1{)
X
v
~JJ
Date:
Date:
t,/.J/fO
I I
Agenda Item No, 16A17
June 22, 2010
Page 6 of 14
CHANGE ORDER TO WORKORDER
TO: URS CorporatloD Southera nOM: Enctaeerlllg IUld Eavtroameatal Servl_
7650 Corporate Center Drive, S 40 I
Miami, F1 33126-1220 2800 North Horseshoe Dr
Watershed Management Plans
September 12, 2007
ChIlDge Order 2
Chllllge Order Description:
'This change order is to authorize tasks in Phase 2 of the project, reduce contract by $40,14::aff,;d
extend completion date by 533 days,
lnRS-F1r-3657-07-11/4500102994
May 26. 2010
Original agreement amount ............... ................................................$198,840
Sum of Previous Changes...................................................$O .
'This Change Order No.2 Amount (subtract)..................................... ($40.142. S'C)
Revised Agree_Ill AmoIUlL.............................................................$1S8,69,7.5o
Original contract time in calendar days ................... ........... ...............180 days
Adjusted number of calendar days due to previous change orders ...............336 days
'This change order adjusted time is. ......................... ........ .......... ........533 days
Revisl!ll Colllract Time in working dJzys............ ...... ...... ..... ............... .....1049 days
Original Notice to Proceed date .................................................. October I, 2007
Completion date based on original contract time ........................ March 29, 2008
Revised completion date due to change ordcr(s)......................... August IS, 2010
Your acceptance of this change order shall constitute a modification to our Agreement and will
be performed subject to all the same terms and conditions as contained in said Agreement
indicated above, as fully as if the same were repeated in this acceptance. The adjustment, to this
Agreement shall constitute a full and final settlement of any and all claims arising out of. or
related to, the change set forth herein, including claims for impact and delay costs.
Prepared by: l-'\o.-lL.li~ Date: S'/~g/'?-olo
Mac Hatcher, Project Manager
Land Development Services
s:-~-~ ~
Accepted by: -
Michael Nardone, Senior Vice President
URS orporation Southern
Date: 5/28/10
Approved by: Date: o5'-U!l-ZoIO
. liam D. Loren, Jr., .E., Land Development Services
Approved by: ~4-, q~ --:;7/
Nick asalanguid . ~d Regulation
Date: tJ' - of- ~o 10
Agenda Item No. 16A17
June 22. 2010
Page 7 of 14
CIwlge Order No.
Pap 2
Date:
~4c>
I
Approved by:
No
Approved by:
LynW
Dale: ~/..3/0
Date:
A TrEST:
BOARD OF COUNTY COMMISSIONERS OF
COLLIER COUNTY FLORIDA
Dwight E. Brock, Clerk
BY:
BY:
Fred W. Coyle, Chairman
Approved As To Fonn
and Legal Sufficiency:
N A~ A-- (ju
Print Name: H f. 'r;j ; AShlvn - CcJ<.o
Assistant County Attorney
Agenda Item No, 16A17
June 22. 2010
Page 8 of 14
Attac:hment A
Collier County Project Manlgement Overalllht Contract
URS Program Management As.lsfanc:e
5120110
For PBSJ Contract Collier County Waterahed Model Upclat8 and Plan Development
.Phue 1 Scope of Won: Hydrodynamic Model Updat8, Topographic Data Development
and Dm Management, and Wat8r QualltylEcologlcal Aa....ment"
INTRODUCTION
This scope of work is to provide limited program management assistance to Collier County with respect
to the above PBSJ contract. Originally, URS was to provide program management for the development
of the Watershed Plans which was thought to require the assistance of four to live additional modeling
consultants. Early In 2008, it was determined that only one additional modeling consultant was
required. URS assisted with the development of an RFP to complete the Watershed Plans. PBSl was
selected through the County procurement procedures In November of 2008. PBSl was awarded Phase 1
of this project In April of 2009. Full program management services are not warranted or needed to
oversee this one contractor / consultant. However, this scope wlli provide technical expertise to the
County as needed to critically review and assist PBSl In developing the tools needed for the mnstructlon
of the watershed management plans. The Intent Is to supplement the County's modeling and ecological
expertise with respect to the Watershed Management Plan Development.
PBSl developed a Phase 1 Scope to indude the following elements. The table below presents those
elements and PBSJ fees. URS proposes to provide OA!QC reviews and County support on these tasks
which wllllnclude providing guidance, and a critical review of wort products.
PBSl PBSJ Elament Description PBSJ Fee URS Percent URS Fee
Element
1 Initial Model Comparison and $28,346 21% $60SO
estimate of Flow to Estuaries
2 Topoaraphic Data Development $46,9B8 N/A $0
3 Development and Calibration of cc: $357,713 12% $43,390
ECM Model ,
Total $49,440
Following are descriptions of the tasks included in each wort element.
Element 1 -Initial Model Compari.on and Estimate of Flow to Estuaries
URS will review the Technical memorandum developed by PBSJ for Task 4 and
provide the County a critical review of the work product In Q summary
memorandum format.
Below are the specific tasles outlined In the PBSJ Scope.
Task 1 . I.It8rature Revl_ related to flows In Collier County.
Agenda Item No, 16A17
June 22. 2010
Page 9 of 14
..
In this task, the PBS&J/DHI team will prepare a summary of literature regarding historical and cummt
flow regimes in Collier County. This will Include works by the SFWMD, the US. Ash and Wildlife Service,
FOEP, Collier County, and others.
Task 2 - Obtain Models for Exlatlng Conditions (Year 2000), Natural Syat8m (pre-
development) Condition, and Future Condition.
In this task, the PBS&J/DHI team will obtain model setup files for MIKE SHE models previously
developed for the Big Cypress Basin.
Task 3 . Develop Comparison Plota.
In this task, the PBS&J/DHI team will use the generated results from the BeB PIR, BeB NSM, and
BCB FCM models for comparison purposes. This effort wlH focus on comparing predicted flows
to the estuaries and averase wet and dry season water levels. For purposes of this preliminary
evaluation, comparisons will be made for the 13 year simulation period of the PIR and NSM MIKE SHE
models developed for the BCB. The following compartson plots will be sene rated:
. Row to Estuaries. Individual time series of predicted flow will be senerated for each of the
modeled channels that discharge to the estuaries for the 13 year slmulatlon period. It Is
recognized that the BeB NSM Includes only a few flow ways.
. Water Levels. Average wet and dry season water level maps will be generated for each of the
models to evaluate hydrologic conditions.
. Groundwater Levels. Groundwater results can be evaluated in several ways, either as spatially
distributed maps, or as profile views, or as time series at specific locations. For this evaluation,
results will be generated as spatially distributed maps showing the average annual, average wet
season, and averaged dry season groundwater elevation In the surficial aquifer. Comparative
maps will be generated by subtractl"ll the PIR results from the NSM results.
. Water Budsets. The PBS&J/DHI taam wnl develop water budgets for each basin and for the
entire county for the BCB PIR, BCB NSM, and BeB FCM models. The water budget will model
Inflows such as rainfall and groundwater, and outflows such as evapotranspiration, runoff,
groundwater Infiltration, groundwater withdrawals, and groundwater flux to estuary
boundaries.
Task 4 - Prepare Technical Memorandum.
The Technical Memorandum win Include the following:
. Summary discussion of available literature related to flows and average wet season water level
assessments of Collier County
. Model descriptions and discussion of model
. Comparative results for discharge to the estuaries
. Comparative results for average wet season water level analysis
. Comparative results for groundwater analysis
. Water Budget results
Summary of Identllied differences between the models related to depth of overland flow,
aquifer drawdown, and average seasonal water levels.
Element 2 - Topographic Data Development and Data Management
The County does not require URS support with review of these Tasks.
Agenda Item No. 16A 17
June 22, 2010
Page 10 of 14
Task 1 - Digital Temlln Model IOTM)
Work will consist of processing area of new L10AR for Collier County (approximately 1250 tiles) for
creation of Digital Terrain Model with breakllnes based on SWFWMO standards and supported by
SFWMO. The deliverable will be the processed UOAR and breakllnes In OTM's.
Task 2 - OEM Generation
Work will consist of the following subtaslts:
a. Creation of 5-foor by 5-foot horizontal grid raster OEMs from the OTMs generated In Task 1 for
Quality Control review and for definition of drainage and watershed boundaries. The elevation
within each grid cell will be the average of the UOAR elevations within each cell. The vertical error 15
expected to be :I: 3 Inches. The deliverable will be 5-foot horizontal raster Digital Elevation Models
(OEM) dertved from the terrain.
b. Creation of a regional raster OEM and two detailed area raster OEM's for MIKE SHE modeling
purposes.
Task 3 - Subbaln Delineation
Work will Include re-dellneatlon of subbasins for consistency with the OEM. The level of detail will
be the same as currently available from the County's subbasin map, but the new subbasin dMders
will follow the new OEM topography.
Task" . Data Management:
Work will consist of the following sub-tasks:
a) Collaboration with the County and the project team to establish a project geodatabase (ESRI
format) that Is compatible with SFWMO geodata standards and supports all data required for
tho! modeling.
b) loading. Integration and management of GIS model data and time-series (observations and
modeled results).
c) Loading. Integration and management of all other project spatial data and supporting tables,
Including water quality. The deliverable will consist of databases in ESRI geadatabase format.
Agenda Item No. 16A17
June 22. 2010
Page 11 of 14
element 3 - Development and Callbrallon of CC eCM MocIel
URS will cr/tlcol/y review the model calibration procedures and results with
primary concern on the calibration adjustments to appropriate CDeflldents and
the surjoce groundwrlter Interjoce. The existing MIke-She model was developed
from a /lood simulation and amtrol perspectllle. This watershed project focuses
more on ollerall water budget for the estuaries. Graundwater lwei Is the key
components to the ecology of the watershed. URS will also review the Technical
memorandums developed by PBSJ for Tasks 1. through 1.2 and prolllde the
County a critical review of the wor1c products In a summary memorandum
format.
Task 1 - Revl_ current model applicability
In order to Identify existing model shortcomings with respect to the current objectives. we will first
review the existing model. Models are built with different objectives In mind, different calibratlon
criteria, and different data. As such, a review of the basic framework of the existing model will aid us In
detennlnlng how much work we might anticipate occurring in future tasks; allowing us to maintain
schedule and budget. If there are significant Issues with respect to the current objectives and the
existing model, we will Immediately notify the County, as this may bring about changes In scope or
schedule.
Task Z - Meteorological data
The existing MIKE SHE/MIKE 11 models of the 81g Cypress Basin (8C8) use spatially distributed rainfall
and reference evapotranspiration (ET) data developed by the South Florida Water Management District
(SFWMD). These data have a resolution of 2-mlles and contain data through December 2000. For the
Collier County model (CeM), the P8S&J/DHI team proposes to replace the rainfall data used in the 8C8
models by available 1.2-mlle resolution NEXRAD radar dataset from the SFWMD for the current decade.
This data Is available for the period from January 2002 -October 2007.
Ta.k 3 - ECM Land Use and Vegetatfon Data
The existing 8C8 models utilize land use data for the year 2000 acquired from SFWMD and classified per
Florida Land Use, Land Cover Classification System (FlUCCS). For this project, the P8S&J/DHI team will
obtain the most recent FLUCCS data (year 2004). The P8S&J/DHI team will then review the most recent
aerial photography of the County to update the land use map for existing conditions.
Talk. - ECM Agricultural Irrigation Updates
The Irrlgatlon component In the eeM MIKE SHE/MIKE 11 model will be modified to reflect changes in
water used for Irrlgatlon since 2000. Modifications will be made based on the new land use distribution
map and aerial photos.
Task 5 - eCM Ground Water Withdrawal Data
Development of an accurate ground-water withdrawal database for the eCM is essential for the success
and the efficiency of the ground-water calibration process. The most current and complete
ground-water withdrawal Information available will be Incorporated Into the model. Ground-water
withdrawal rates for each of the pennltted potable water supply utilities will be updated in the most
current withdrawal data.
Tuk 6 . ECM Topographic Data and Extend Catchment
The CeM will use updated topographic data developed from Ught Detection and Ranging (UDAR)
surveys provided by Collier County for the proposed extended model domain.
~~Agenda Item No, I bAil
June 22, 2010
Page 12 of 14
Task 7 - ECM Subsurface Model Update
The CCM will Include an updated and expanded ground-water component. Grid files for the existing
three layers of the BCB model (water table aquifer, lower Tamiami aquifer, Sandstone aquifer) will be
extended to encompass the proposed CCM model domain. Considerabie effort will be made to address
the communication between the surface water network, the overland fIow plain and the three layers of
the ground-water component.
Task 8 - ECM Definition of Boundary Conditions
Surface water boundaries will be modified as necessary to accurately represent surface water sources
and connections.
Tak 9 - ECM Definition of Initial Conditions
Results from preliminary model runs will be used to establish the Initial conditions. The Initial condition
will represent an approximate condition of stage and grou~ater heads with respect to observed
conditions for the starting date of the simulation. In order to reduce any errors associated with assumed
Initial conditions, a warm up period of at least one full wet season will be added to the beginning of each
subsequent simulation.
Task 10 . ECM Hydl'llulic Model Updates
The PBS&J/DHI team will collaborate with SFWMD and the County to update the surface water network
to Include pertinent features maintained by Collier County that 15 not currently included as a part of the
SFWMD system. The Inclusion of County maintained canals and Structures will be dependent on criteria
established with the County. Engineering drawings and survey data will be used to describe channel
cross-sectlons, structure geometries and operations where such data is available. The additions will be
prioritized to add problem areas first such as Gordon River, and Lely District 6. As with the SFWMD
structures, the model will be calibrated with operational controls that are primarily based on recorded
data; the final model will utilize operational rules established by Collier County water management
policy.
Task 11 . ECM Observation Data
To assess performance of the CCM, observation data sets within the CCM model domain will be
extended through 2007 using data collected from the USGS, SFWMD, Lee County and Collier County.
This will include stage and flow monitoring time series data from within the canal network,
ground-water elevation time serIes data from observation wells, and historic structure operation time
series data. The data will processed i;;to the MiKE SHE compatible format and added to a MS Access
database file.
Tuk 12 - Model Calibration
The calibration effort will be performed in two stages. During the first calibration stage, the PBS&J/DHI
team will work to calibrate the model on a county-wide basis. At the end of this effort, results will be
compared to the targets and they will be reviewed with the County. During the review process, areas of
the model that may need improvement will be identified. If the County determines that additional effort
is needed to improve calibration in specific areas of the model. these efforts will be completed during a
second calibration stage.
Task 13 - Oevelopment of Storm Event Simulations (not Included)
Agenda Item No, 16A17
June 22. 2010
Page 13 of 14
"The calibrated CCM model will be applied to evaluate 4 established storm events. These will Include the
S year, 24-hour event; the 10 year, 24-hour event; the 2S year, 72-hour event; and the 100 year,
72-hour event. Initial conditions for these assessments will be the SFWMD antecedent moisture
conditions. The results will be processed and reported to the County for evaluation and planning
purposes.
T..k 14 _ Levels of Service Analysis and Buln Olsc:hllrge R'" (not Includedl
The results of the design storm event simulations will be used to evaluate the flood protection levels of
service (LOS) standards associated with road access and structural floodlnB. Currently available County
LOS criteria will be used If Ivallable. Otherwise, LOS criteria that consider types of I'OIIds and accessible
flooding depths will be developed In coordination with the County. The product of this analysis will be a
map and a table showing the modeled LOS conditions.
T..k 15 . T..k Reporting (not Inclucl8d1
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