COOPERATIVE FUNDING AGREEMENT FOR THE DEVELOPMENT OF THE COMPREHENSIVE WATERSHED MANAGEMENT PLAN FOR ALLEN'S CREEK BOARD OF(OUNI"Y
COMMISSIONERS
Nancy Bostock PinelldS
Neil Bricklield
Susan Latvala (ounty
john Mormni ENVIRONMENT AND
Norm Roche WRASTRUCTURE
Karen Willrarns Seel
Kenneth T.Welch
May 29, 2012
Mr. Ken Sides, P.E.
Project Administrator
City of Clearwater
P.O. Box 4748
Clearwater, FL 33758-4748
SUBJECT: Cooperative Funding Agreement(CFA) between Pinellas County, the City
of Clearwater,and the City of Lai-go for the Development of the
Comprehensive Watershed Management Plan (WMP)for Allen's Creek
County PID No. 1860
Dear Mr. Sides:
Enclosed is one (1)original of the above referenced Agreement which was approved by the
County Administrator on May 24, 2012,
Should you have any questions,please feel free to call me at(727)464-3185.
Sincerely,
PINELLAS COUNTY DEPARTMENT OF ENVIRONMENT AND
INFRASTRUCTURE
J_k
�A
Merry Cc $te, CPI�,
Contracts Servizug' upervisor
TO, Robert S. County Administrator
FROM: Peter J. Yauuh, P.E,, Division Director
DEkTra,msportaiom & Sto/m*ater
SUBJECT: Cooperative Funding Agreement (CF-A) between Pinellas County, the City of Clearwater and the
City of Largo for the Development of the Comprehensive Watershed Management Plan (N&1P) for
Allen's Creek
P|D No. 186O
DATE: May 1@. 2Q12
\ RECOMMEND THE COUNTY ADMINISTRATOR APPROVE THE CFA BETWEEN
PINELLAS COUNTY,-THE CITY DFCLEARVVATEB AND THE CITY OF LARGO FOR THE DEVELOPMENT OF
THE COMPREHENSIVE VVMP FOR ALLEN^SCREENyN THE AMOUNT {)F $325,00&00�
In an effort to cooperate extensively on Total Maximum Daily Load (TK6DL) related studies and
projects, thia Agreement is proposed for the purpose of developing a VVMp for /U\en`a Creek between the County,
the City mfClearwater, and the City ayLargo (collectively referred to as Partners) This combined effort will result in
greater efficiency in T0DL compliance and |owe duplication of effort between the governmental agencies, The
Partners acknowledge that Allen's Creek is a critical resource for the County and has impaired waters that exist
within the defined project area ae outlined in Exhibit A0o this Agreement.
This Agreement also sets forth the relationship of the Partners in developing the VVMP and establishes a moa1
allocation method to ensure equitable distribution of costs. The County will memuns and administer consultant to
develop the W-MP in accordance with the proposed project plan set forth in Exhibit B to this Agreement. The
Partners will, provide and develop all available information and data needed by the consultant for use in developing
the VVK4P. The term of this Agreement ia effective tm December 31. 2O18.
Funding for this project in budgeted in the Pinellas County Capital Improvement pro0renn The amount of this CFA
is $325,000.00 which is allocated between the County, the City of Clearwater and the City of Largo. The Southwest
Florida VVo{er Management District (SVvFWMD) is providing o $325.000.00 grant toward this project through their
Agreement No. 11C00000119, The total estimated expenditure for the WMP is $650,000, with the distribution of
costs allocated eofollows:
AGENCY ALLOCATION AGREEMENT TYPE
--§—WTW--M57 $325,00000 SWFWMD Agreement No.
County i— $100,067.5 CFA
City of Clearwater $111,605,00 CFA
TOTAL $650,00000 �1111
Approval of this Agreement is within the authority of the County Adminiuha$ur, as delegated by the Pino||ee Cnum|y
Board of County Commissioners and pursuant to Section 2-62, Pinellas County Code.
Please return one original Agreement to Merry Coksato. DEL
Recommendation Approve
d�� LaSmfa.\[oun1yAdmin|mYra\m/ Om10
Attachments: a~
Contract Review Trenom|Ma|
Agreement
Project Financial Overview
COOPERATIVE AGREEMENT
BETWEEN
KNELLAS COUNTY, THE CITY OF CLEARWATER,
AND THE CITY OF LARGO
For
The Development of the Comprehensive Watershed Management Plan for Allen's Creek
T111S AGREEMENT is entered into this.,2 "day of_z2he
2012 by and among
PINELLAS COUNTY, a political subdivision (hereinafter COUNTY), the CITY OF
CLEARWATER, a municipal corporation(hereinafter CLEARWATER), and the CITY OF
LARGO, a municipal corporation (hereinafter LARGO).
WITNESSETH:
WHEREAS, this Agreement is for the purpose of developing a Comprehensive Watershed
Management Plan (hereinafter WMP) for Allen's Creek; and
WHEREAS, the COUNTY, CLEARWATER, and LARGO (hereinafter PARTNERS) agree
that Allen's Creek is a critical resource of the County; and
WHEREAS, the PARTNERS acknowledge that Allen's Creek has impaired waters as
designated by 62-303 F.A.C. existing within the project area(Exhibit "A"); and
WHEREAS, the State's Total Maximum Daily Load (TMDL) regulations will be reflected in
the National Pollutant Discharge Elimination System (`NPDES) permit requirements held by
the PARTNERS; and
WHEREAS, meeting the requirements of the State TMDL program will require local
governmental agencies to cooperate extensively on TMDL related studies and projects; and
WHEREAS, such intergovernmental cooperation will result in more efficient, cost effective
TMDL compliance for each governmental agency, and less duplication of efforts;
NOW, THEREFORE, in consideration of the premises and the mutual covenants, conditions
and terms set forth herein, the PARTNERS hereby mutually agree as follows:
Page I of 23
SECTION 1. PURPOSE
The purpose of this Agreernent is to set forth the relationship of the PARTNERS with
respect to the following:
A. To define the general responsibilities of the PARTNERS in developing the
WMP.
B. To establish a cost allocation method to ensure equitable distribution of costs.
SECTION 2. GENERAL RESPONSIBILITIES - WMP development
A. The COUNTY will be responsible to engage and secure a consultant to
develop the WMP with the Proposed Project Plan set forth in Exhibit"B."
B. The COUNTY will administer the consultant contract.
C. The COUNTY will ensure the WMP is completed by the consultant on or
before December 31, 2013,
D. The PARTNERS will provide all available information and data, as requested,
by the consultant for use in developing the WMP.
E. The PARTNERS will be provided copies of all.meeting minutes, sign in.
sheets, and draft deliverables for review and comment.
F. The PARTNERS agree to review all deliverables within the specified review
periods.
G. The PARTNERS will be provided copies of all final deliverables including
reports, models, and GIS files.
Page 2 of 23
SECTION 3. PROJECT BUDGET AND COST ALLOCATION
A. Project Cos
1. The cost of the WMP is $650,000 and is budgeted in the Pinellas County
Capital Improvement Prograrn budget under project number 1960.
B. Grants
1. The COUNTY has Secured $325,000 in outside funding.
C. Cost Allocation
1. The basis for cost allocation shall be the total project cost less the grant
funding or$325,000.
2. The percentage breakdown for each of the PARTNERS is as follows:
i. PINELLAS: 30.79%or$100,067.50
ii. CLEARWATER: 34.34%or$111,605.00
iii. LARGO: 34.87%or$113,327.50
3, The COUNTY shall invoice CLEARWATER and LARGO for their respective
contributions on a quarterly basis. Payments shall be made to the COUNTY
within forty five (45) days of receipt of the invoice, and CLEAR WATER and
LARGO may request Supporting documentation from the COUNTY to process
said invoices for payment. COLYNTY shall provide the requested documentation
within seven (7) days of receipt of the request.
Page 3 of 23
SECTION 4. COPIES
Upon final execution of this document, the original will be filed with the Clerk of
Circuit Court of Pinellas County pursuant to Section 163.01, Florida Statutes, Two
(2) copies will be provided to each of the PARTNERS.
SECTION 5.NOTICES
All written notices to the PARTNERS Linder this Agreement shall be directed to the
following addresses:
Pinellas CoylLty: Clearwater:
Division Director Director of Engineering
Watershed Management City of Clearwater
300 South Garden Avenue P.O. Box 4748
Clearwater, FL 33756 Clearwater, FL 33758-4748
Lar o°
City Engineer
City of Largo
P.O. Box 296
Largo, FL 33779-0296
SECTION 6. AUDIT REQUIREMENTS
A. All PARTNERS' records shall be open to inspection and subject to
examination, audit, and/or reproduction during normal working hours by any
PARTNERS' agents or authorized representatives to the extent necessary to
adequately permit evaluation and verification of any invoices, payments or
claims submitted pursuant to the terms of this Agreement. These records shall
include, but not be limited to, accounting records, written policies and
Page 4 of 23
procedures, subcontractor files (including proposals of successful and
unsuccessful bidders), original estimates, estimating workshects,
correspondence, change order files (including documentation covering
negotiated final settlements), and any other supporting evidence necessary to
substantiate charges related to this Agreement. They shall also include, but
not be limited to, those records necessary to evaluate and verify direct and
indirect costs, including overhead allocations as they may apply to costs
associated with this Agreement.
B. For the purpose Of Such audits, inspections, examinations and evaluations, the
PARTNERS' agents or authorized representatives shall have access to said
records from the effective date of the Agreement for the duration of the work,
and until three (3) years after the date of final. payment by the PARTNERS
pursuant to this Agreement.
C. The PARTNERS' agents or authorized representatives shall have access to all
facilities and all necessary records to the extent necessary to conduct audits in
compliance with this Section. The PARTNERS' agents or authorized
representatives shall give all other PARTNERS reasonable advance notice of
intended inspections, examinations, and/or audits.
SECTION 7. ENTIRE AGREEMENT
This Agreement together with Exhibits "A and B" embodies the whole Agreement of
the PARTNERS. There are no promises, terms, conditions or allegations other than
Page 5 of 23
those contained herein and this document shall supereede all previous
communications, representations and/or agreements, whether written or verbal,
between the PARTNERS hereto. This Agreement may be modified only in writing,
executed by all PARTNERS.
SECTION 8. AGREEMENT TERM
This Agreement shall take effect as provided in Section 12 and shall remain in effect
until December 31, 2013, unless renewed in writing by mutual agreement of all
PARTNERS hereto for an additional length of time.
SECTION 9. HOLD HARMLESS
The PARTNERS hereto agree to be fully responsible for their own acts of negligence,
or their respective agents' acts of negligence when acting within the scope of their
employment, and agree to be liable for any damages resulting from said negligence to
the extent permitted by section 768.28, Florida Statutes, Nothing herein shall be
construed as consent by the PARTNERS to be sued by third parties in any manner
arising out of this Agreement.
SECTION 10. EFFECTIVE DATE
This Agreement shall take effect upon execution by the PARTNERS.
Page 6 of 23
IN WITNESS WHEREOF, the undersigned have hereunto affixed their hands and seals as
the day and year first above written.
KNELLAS COUNTY, by and through its County Administrator
Robert S. LaSala,6unty Administrator
�j
WITNESS:
By:
tt
APPROVED AS TO FORM:
B
Ice Of CO ►► ty Attorney
(Official Seat)
Page 7 of 23
COOPERATIVE AGREEMENT
BETWEEN
PINELLAS COUNTY,THE E CITY OF CLEARWATER,
AND THE CITY OF LARGO
Countersigned'. CI'T'E OF CLEARWATER, FLORIDA
w (Xt C
George N. Cretekos Iiani F. Horne II
Mayor City Manager
Approved as to forn1 .attest:
p
r q
.^
Leslie K. I7au atl- ides Rosemarie Call
u nPr +a
Assistant City Att� ney City Clerk
ar^ .
nl
Page 8 of 23
COOPERATIVE AGREEMENT
BETWEEN
PINELLAS COUNTY, THE CITY OF CLEARWATER,
AND THE CITY OF LARGO
CITY OFLARGO
CITY OF LARCH FLORIDA
By:_ _...
Mayor
Reviewed and Approved: Attest:
OF
City,' tt�rey$ "" . City Clerk i
PLORIPA
k
(Official Seal)
Page 9 of 23
EXHIBIT
Allen"s Creek Watershed
�srs i
�k
W
Pinellas Cou n Florida --
0 0.25 0.5 1 Legend
Miles
Major Roads
"AGID1604-
@mpaired for DissoNed Oxy gan,
Decal CoNforrns,Nutrderlts erod
Mercury
mom
r Aflens Creel�C BOUndarw
Page I'b of 23
EXHIBIT
SCOPE OF WORK
ALLENS CREEK WATERSHED MANAGEMENT PLAN
2.1.2 Digital Topographic Information and.Proiect Development.
21.2.1 Evaluate the topographic data and identify topographic voids;
The CONSULTANT will review the Hydro-enhanced LiDAR-based DTPN for
topographic void areas that may result from development that will have an effect on
hydraulic or hydrologic components cf the model.
The CONSULTANT will review the 5-foot-by-5-foot Digital Elevation Model (DEM) of
the dahssmt over the approximate watershed boundary, Other items to be reviewed
include the density ofLiDARreturns andbnaak|ining
The CONSULTANT will develop a memorandum outlining any concerns for submittal
to, the Southwest Florida Water Management District, whose address is 2379 Broad
8tmaet, Brookevi||e, Florida, 34884-8809, hereinafter nsha/nad to as DISTRICT. The
CONSULTANT will also submit a shapefUemhmwimQ the areas within the watershed
that are noted as areas of concern. The CONSULTANT will, review re-submittals to
ensure all identified problems were addressed prior to utilizing the final Hydro-
enhanced U[AR dateset suitable for modeling the Allen's Creek Watershed,
A DISTRICT QC CONSULTANT will make all datum conversions in accordance with,
procedures provided in the document FE-MA Guidelines and Specifications for Flood
Hazard Mapping Partners, Appendix 8: Guidance for Converting to the North
American Vertical Datum of 1988, April 2003 (Guidance Document 9�). A single
conversion factor will be used throughout the WATERSHED.
Deliverable
°
Technical memo detailing plan of action for obtaining the necessary data to
address topographic voids and other concerns identified.
2.1.2.2 Revisit project development and cost and meet with the PARTNERS bo
discuss topographic data recommendations;
Deliverables
m Meeting with the PARTNERS.
2.1.2.3 Project management and quality assmxsnoe/oontvmU;
The CONSULTANT will manage and provide quality assurance/quality control for the
"Digital Topographic Information" element. Quality control reviews will be
documented eaappropriate.
Deliverables
• Meet with, the PARTNERS to review the quality of the Digital Topographic
Information.
• Project-Specific Quality control document.
• Revised project timeline.
2.1.2.4 Final approved deliverables for Digital Topographic Information.
The CONSULTANT will provide required digital topographic information in the form of
ESRI ArcGIS Geodatabase Feature Classes and associated tables, terrain datasets,
domains, relationship oYaeses, and metedada. Feature C|eeoeo provided will include
those outlined in the GVV|S document and the supplied GVVUS database schema and
will be housed in the Topographic Information Feature Ootemet.
Page lI of 23
Oekerabbs,
• GVVS gaodadabeae for Topographic Information,
• Refined project development and cost documentation.
• Refined project schedule.
2.1.3 Watershed Evaluation is the systematic inventory of watershed features and their
assessment to gain an understanding of the complexity ofawatershed. |t consists of
several tasks related to the creation of a Geographical Watershed Information System
(GWIS) Geodatabase that will contain information about the water resource features of
the watershed.The Watershed Evaluation will include the following:
2.1�3-1 Assembly cf existing watershed feature data;
21.3.1.1 The CONSULTANT will collect and evaluate the following possible sources mf
information:
* Information collected insurveys.
m Additional topographic information from ERP permits, construction plans (as-
built and pennitted). and ba(hymedryin waterways and open channels.
w Road projects and plans
0 Local otormmvater inventories, land uoe, impervious ourfaoea, and other
Qeodamsbases that apply.
Applicable documents will be 0emreferenoed. It is assumed that all necessary
stnrmmater asset inventory information from Pime||ea COUNTY, City of Ler0o, and the
City of Clearwater will be provided in a digital format that does not require digitizing to
convert ithoomArcGUGformat.
21 3i.2 Collect and evaluate ERP information — the CONSULTANT will identify
watershed features based on a cut-off date identified by the PARTNERS. The
PARTNERS and the CONSULTANT will select up to 150 ERPeto be incorporated into
the parameters and model. The DISTRICT will provide pdfs end, if available, computer-
aided drafting files for the ERPe. The CONSULTANT will not be responsible for
converting ERP information to an electronic format including converting hendcopyor
mminmficha information to PUF. The CONSULTANT will review the selected ERPm for
this task.
2.1.3.1.3 Verification information — the CONSULTANT will collect information to help
verify the floodp|ein n*mu|to during the Watershed Management Plan task. The
CONSULTANT will collect information on historic water |ema|s, eumeya, photos or
videos of floodinQ, and any other available information and identify areas where
additional historic water hswm|e information is desirable but unavailable based on the
data located 'from the e0bda dimomame6 above. If required, the CONSULTANT will
survey up to 15 high water marks. Throughout this process, the CONSULTANT will
remain in, contact with the PARTNERS to help review the appropriateness of the data
collection.
Deliverables
�
Feature classes showing locations ofERPm. land coverage and corresponding
estimate mJ impervious areas.
°
Methodology for estimating impervious areas
w
Point file showing locations of historic water levels.
Page 12 my23
� Documentation of data collection and evaluation efforts, including pdfoopies of
ERP information from DISTRICT and FDEP and/or COUNTY files, surveys, as-built
dnawingm, and geoteohmica| information.
m
Documented results of data collection and evaluation,
* A G|S feature c|eae showing the location of the p|ans, including hyper[imka to
PDF files cf the plans.
2.13.2 Initial desktop evaluation and processing of Generic Features toprovide
initial catchments and surface connectivity;
The CONSULTANT will follow the ArcHy�ro Processing work flow detailed in the GWIS
Database Design Document, Version 1£ (Guidance Document 2) with specific focus
on catchments. The CONSULTANT will document hydraulic features that are used to
determine catchment boumdarl*o but which are not modeled explicitly in esimp|e G|S
feature outside of the GVNS 1.6 framework.
The CONSULTANT will place junctions appropriately to determine the effects of
storage routing on hydrologically determined flow rates. Junctions will be placed in
SN1SAs, ponds or lakes, natural |akes, wetlands and depressions that are larger than
10.000 square feot�The initial catchments will be delineated eda scale that results in no
more than 5O@ nodes inthe final watershed model.
Oa|iwensb|e
* Initial catchment delineations.
2.1.33 Pre-Field reconnaissance evaluation and field acquisition approach and
methods development;
The CONSULTANT will develop an approach to the data acquisition methodology that
is specific to the Watershed to include locations where collection will occur and what
the method of collection will be. The CONSULTANT will submit this document hothe
PARTNERS for approval before beginning the Field Reconnaissance teak.
Hydnojunctimns will be placed where field work is required to parameterize e hydraulic
feature and will be developed for use in the field reconnaissance, the GVVIS Database
Design Document Version 1.6 (Guidance Document 2), and for eventual
documentation of the reconnaissance process. The CONSULTANT will further develop
preliminary hydrum*tworkvvith hydnojunction and hydroedge feature classes during the
field reconnaissance work.
The goal of the field reconnaissance will be to populate the hydronetwork and Hydraulic
Element Point feature class and the associated sub-eKement1ablea. Fie|d
reconnaissance will also include photographing culverts and pipes that are included in
the model and reviewing areas of the DTK8 that were noted im Element 2.1.2.
Dahw*myb|ea
m B8 layers for hydro network including hydro jmmoUmma where field data
acquisition is required.
�
Pre-field reconnaissance geudatabaye
"
Meeting ho discuss collection methods and accuracy.
Page|3af2]
21.34 Field reconnaissance and acquisition;
2.1.3A.1 The CONSULTANT will populate the Flydraulic Element Points (I-IEPs) within
the GWIS that are needed to characterize the final lCPR model. These features will be
used to define sub-elements (ou|wadm, wehna` etc.) in accordance with the GWD3
6yoheu0c Element Point (HEf) Users Guide (Guidance Document 2 supporting
information). HEP features will only he populated for sub-elements that will be explicitly
modeled in the finial watershed model.
2.1.34.2 The CONSULTANT will conduct a full-scale hydraulic inventory, vvh1ch will
involve field investigation of the hydraulic features needed to model the watershed at
the scale identified in 2.1.3,2. The CONSULTANT will provide extensive
documentation of each hydraulic feature as required in the G&S (Guidance Document
1), including location, condition, dimensions and elevations, description ufaccessibility,
and photographs. This information will be compiled into an ESR( AnoG1S,Arc|nfm 0.3
GWI8 gemdatabase that will have all backup descriptive h|mm (indudhng mketoheo,
surveys, descriptions, and digital photos) hypedinkedto the appropriate feature class.
2.1.3.4'3 The CONSULTANT will survey up to 150 hydraulic structures using Real-
Time NinamnatioGPS and traditional survey techniques with the nemuKm provided in an
"X, Y. Z. Comment" format. The CONSULTANT will provide bethymedriu survey for up
to 30 open channel cross-sections. The CONSULTANT will use the Hydro-enhanced
LiDAR based OTyN to develop dry open-channel orosm~smotionsamd irregular overland
weir cross-sections. Where available, the CONSULTANT will use As-Built information
to determine structure invert elevations. The CONSULTANT will collect this data in
accordance with the GVVFVVK4D document Acquisition mfBeoapotial Information to
Complete the Generic Watershed Parameters V9\xbro Network) (Guidance Document
3). The CONSULTANT project manager (in close npnmu|tmbmn with the PARTNERS)
will determine the appropriate level of accuracy (Levels i through 5) that is needed for
the survey. This Knme| nf accuracy will be verified by the PARTNERS before survey is
started.
2.1.3.4.4 Maintenance Condition — the CONSULTANT will enter all data obtained
during the field reconnaissance process into the GVVUS geodatebase. During the
inventory process the CONSULTANT will note if the condition of the structure is
,'maintained" or "not maintained"' and will report the condition in the gemdatmbase by
populating the maintenance field. Note that this task does not include maintenance cost
estimates or schedules for maintenance.
Deliverables
w HEP Feature Classes.
w Survey Documentation.
0 Piotumss, Data Sheets.( Detailed notes and digital photographs from the field
reconnaissance)
° Maintenance Condition included im the Geodotabaae.
° Relevant G|Sdmdm-
w Meeting with the PARTNERS tm present and discuss deliverables.
2.11.3.5 TERRAIN refinement;
The CONSULTANT will make topographic void updates etuptm1O sites within the
watershed that were identified in 2.1.2,11.The topographic void updates will be made
Page l4of23
using available permitted or as-built drawings. Georeferenced PDFs of the drawings
used for the topographic void updates will be included in the deliverable. This task does
not include site survey.
2.13.8 Processing to develop final generic catchmnenUm and connectivity;
The CONSULTANT will use the AmHydm Processing work flow—detailed in GNV8
Database Design Document Version 1,0 (Guidance Document 2)-4o pnmneam the
additional data collected in the previous steps with an emphasis on catohmemts,
connectivity and surface connected bo below surface.
Deliverables
* 8eodatabmsewith:
• Final generic catchment delineations
• Refined connectivity
• Final hydro network
� CONSULlANT`a Comment G�eodetabame
2137 Set up preliminary model features and parameters;
Deliverables
° Gmwdatmbaaem/ith |CPR model specific feature classes for preliminary model
links, nodes, basins and model features hz define level cf detail.
�
Meeting with the PARTNERS tm discuss deliverables todate.
w CQWSULTANT`m Comment Geodetabase
2.1.3.8 Surface water resource assessment analysis approach;
'The CONSULTANT will compile additional water resource information concerning
water quantity and `mater quality as described in the accompanying section of the G&S
(Guidance Document 1) The CONSULTANT will develop an approach to the surface
water resource assessment that im specific to the Watershed and submit this approach
to the PARTNERS for approval before beginning the surface water naeounoe
assessment analysis task. We will discuss the recommended approach with the
PARTNERS. Note that existing water quantity and quality data may be unavailable.
Therefore, the scope of this task may deviate from that described in the G&S
(Guidance Document 1), and may focus on advisement of data collection and
monitoring activities that would be beneficial for this study or future updates. The
Allen's Creek Watershed is comprised mf one VVQ|D. which has been deemed impaired
due to water quality standard ewmaedanoes. The CONSULTANT will identify and
review any existing documents dealing with either the impairment assessment or TMIDL
development and recommend appropriate actions with regard to either the impairment
assessment orTK8DL
Deliverables
w Surface Water Resource Assessment Analysis Approach.
2.1.3.9 Project management and quality eaaunanuefcontno|�
The CONSULTANT' Project K8onmgar and one staff emgiineerwill attend a meeting to
discuss the Watershed Evaluation deliverables and the modeling approach. This task
includes time for project management and quality assurance/quality control for the
"Watershed Evaluation"task. Coordination ie anticipated with other project managers mf
adjacent watershed studies on issues such as water interactions between watersheds
and aspects cf the studies that may need bmbe consistent across the COUNTY. The
Page 15 wt23
CONSULTANT will conduct quality assurance and quality control. {JmaKKy control
reviews will be documented by memorandum with attached graphics, if appropriate.
Deliverables
° Participation at the meeting and providing final approved deliverables for the
Watershed Eva|umdiom,
0 The deliverables will beEaVV|Scompliant.
a 'Use ufDatmQE om the submitted GVNSdatabase
w The Vime1 deliverables, will be the items listed below in Final approved
deliverables for the Watershed Evaluation and as noted in QA/QC deliverable
spreadsheets.
° All feature classes will be provided in one moxd.
2.1.3.10 Approved deliverables for the Watershed Evaluation;
The Watershed Evaluation list of deliverables will be compiled to g*n*mm||y include the
GVNS gemdotabmme and Watershed Evaluation Documents (in digital format). All
reports shall also be provided as follows: Draft dmowments— 1 digital and 2 hard copies
to each PARTNER; Final documents—2 digital and 2 hard copies to each PARTNER.
At should be noted that the CONSULTANT will consider the Digital Terrain Model
"finalized" at this point in the study. Further refinement of the DT&1 during or after
f|oodp|ain delineation will be avoided to the greatest extent practicable to avoid
unnecessary revisions to the flomdp|aine.
Deliverables
0 Watershed Evaluation.
* DraftT3DN�.
0 Resubmitta| of Deliverables from Watershed Evaluation element (with
revisions aoneceaoery).
m GVNSGeodatabase with hydromebworko,catchments and connectivity.
w Use ofOataOEon the submitted GVV|Sdatabase
2.1.4 Watershed Management Plan consists of several tasks related tmthe management of
surface water resources. Development cf the MANAGEMENT PLAN builds upon
information generated from the Watershed Evaluation so that planning and
management decisions can beformulated. The MANAGEMENT PLAN will include the
following:
2.1.4.1 VVabanehed parameterization;
Sub-basin Stage-Storage
The CONSULTANT will develop stage-storage relationships for each sub-baaim, as
appropriate. This process will be conducted using a 8|S hoo|, to reduce hand
calculations and improve accuracy, Channel storage exclusion polygons will be used to,
exclude storage that will be modeled within, m ohmnneU. We will check each sub-basin
for general consistency. The CONSULTANT will manually develop five stage-storage
relationships for comparison tothe automated results.
Doppler Storm Runoff Generation
The CONSULTANT will use Doppler Radar(or most accurate) Rainfall information to
develop rainfall coverage for m single storm event lasting at least 10 hours and meeting
or exceeding the magnitude of a mean annual storm event. It is anticipated that the
Page |Aof23
rainfall data will be available directly from the DISTRICT in 15-minute incremental
rainfall amounts over 2-k|ometepmquanegrids. The CONSULTANT m/iK|use the naim0sU
data to generate a GIS layer and rainfall tables with overlay assignment to each sub,-
basin. Note: Oomhnwomn simulation using Doppler Radar Rainfall is not anticipated for
this project.
Methodology for Determini ig Starling Water Levels
The CONSULTANT will establish |m|txel stages for oh>rmmvobar management areas and
ponds based on best available information such as ERP documents, control feature
data, orthophotoAo»pNy, or seasonal high water iswe|s when control hmedore date are
not applicable. Initial stages in wetland areas may be based on a desktop
vegetation/terrain evaluation. The CONSULTANT will discuss proposed methods with
the PARTNERS before selecting starling water elevations. The CONSULTANT will plot
the area inundated by the im4io| conditions,
Methodology for Determinigg DCIA and C|&
The CONSULTANT will discuss the methodology for assigning DC|A and NDC1Awith
the PARTNERS before it is used. This will not include developing a spatial DC|Aond
ND�C|Afeahmne
Hydrology
The CONSULTANT will use the Hydro-enhanced LiOAR-derived DTKX and G|S
software tu automate defineetiomofthe sub-basins within the parameters established in
the corresponding section of the G&S(Guidance Document 1). The CONSULTANT will
establish the hydrology for this project using the following sources of information:
Hydro-enhanced LiDAR-derived OTK0. current B|G land use uovemsQe, most recent
aerial mappin0. ERP information, COUNTY development infm,matiom, and field
reconnaissance. The CONSULTANT will develop an event-based surface water model
for this project using the computer program Interconnected Pond Routing (|CPR)
version 3.10' |e&ast version. The most m»oemt service packs at the time of model
development will be used. The hydrology will be based on the NRCS Curve Number
(CN) method with DC|A parameters.
The CONSULTANT will develop all hydrologic components with automated G|G
methods using AruHydno G:|G tools. All hydrologic data will also be individually verified
and methods of verification will be duoomnembad.
The CONSULTANT will use the methodology for estimating times of concentration that
{s referenced inNRCSTR'55.
The CONSULTANT will not make evapotranspiration estimates for this watershed.
Irregular weir generation�
The CONSULTANT will follow the techniques described in the SVVFVVMD Hydro Tools
Project — Irregular Cross-Section Extraction Too[ Documentadion, January. 2008
(Guidance Document B)to develop irregular weirs.
Cross-Sections for weirs;
The CONSULTANT will generate cross-sections to represent weirs for the surface
water model. It is anticipated that all cross-sections will either be derived from the
terrain or based on sun^eys, as-built drawings, or construction plan information. The
process of deriving the cross-section information from the terrain in x,y,zfmrmat will be
automated using AnoHydrm or alternate {5US tool approved by the PARTNERS. Some
Page l7of23
manipulation mf the data may be necessary for input into the surface water model. The
CONSULTANT will check crest elevations to ensure that cross-sections are being cut
ed the correct locations and the overtopping elevation ia correctly represented.
The irregular weirs and weir cross-sections tables in the GVV|S goodetabame will be
completed with additional inputs from surveyed information.
Deliverables
0 Doppler Storm Runoff Generation G|SLayer
~ Discussion about and submittal of a Methodology of Determining
Starting Water Levels
m Discussion about and submittal ofe Methodology of Determining DCIA
andNDC|A
0 |nputG|G data
w G|S data, calculations, and discussion about and submittal of o
Methodology for Times mfConcentration
m Irregular weir GVV|S data
a Other Updated G|Sdata
m Plot of area inundated by initial starting conditions
~ PDFof the |CPRNode Computation Performance Report
2.1.4.2 Interim Preliminary Model Review
The PARTNERS will review the preliminary ICPR model input data and provide
comments to the CONSULTANT. The CONSULTANT ie responsible for submitting the,
�
preliminary model and responding to PARTNERS comments.
Deliverables
w
Preliminary|CIPRmodel.
°
Response tmComments.
2.14.3 F|omdp|einenakmim,
The CONSULTANT will update the boundary conditions to and from adjacent
watersheds to reflect all physical connections. PARTNER staff will oversee boundary
condition coordination in areas identified by the CONSULTANT.
Hydraulic and hydrologic informatiom
The CONSULTANT will compile the hydraulic and hydroIogic information and develop a
surface water model using the version 3.10 of the surface water modeling program,
|CPR. AN rnndm| data (including hydraulic data, hydrologic data, and soils data) will be
downloaded from GVNS formats,into|CPR for development of the surface water model.
The CONSULTANT will simulate the 24 hour duration neinfo|| events that correspond
with the 10 year, 25 year. and 10O year recurrence frequencies. The CONSULTANT
will coordinate with the PARTNERS and consultants of adjoining watershed studies to
emouns that the new watershed boundaries one agreed upon before model
development.
Page l8of23
Model Calibration and Validation-,
The CONSULTANT wiff calibrate the ICPR model to the rainfall event developed in
2.1.4.1. If necessary wewill adjust model parameters and rerun the model to verify
results.
Model jerificatiorr,
Design storm flmodp|ain delineations will be compared ho existing flood information for
model verification using up to five events for which high m/ab*r mmNkm, radar rainfall
amounts, orcdher flood information iaavailable,
The CONSULTANT will develop preliminary f|modp|aimo from the Doppler-derived and
100-Yeer/1-Dey storm events. The CONSULTANT will use these Ooodpksiva for model
verification and justification of the duration of the storm for FEMA floodplain delineation.
Verification of the rnmdeU may lead to refinement of the model to improve accuracy of
the results,. The CONSULTANT will also review the stability and reasonableness of the
results.Justifications will be provided to support the Consultants'floodplain results.
Draft Floodplain Delineations and QA/QC Maps;
The CONSULTANT will subject the surface water model to an internal quality
assurance quality control review. Additionally, the CONSULTANT will develop an
Arc,Map GIS Project File Map (mxd) for "QA/QC" of the preliminary floodplain model
results and other pertinent data as requested by the PARTNERS for use in reviews by
outside entities.
Present Model Results and Justification for Changes in Floodl2lain;
If applicable, the CONSULTANT will prepare written justification of changes in the
floodplain (horizontal and vertical extents) from the FEMA's effective floodplain
information and for rai�nfall durations longer than 24-h:ours. Changes in the floodplains
and storm duration may have to be revised as a result of the presentation to the
PARTNERS mentioned in the del�iverables below.
Deliverables
° Model input/output files
0 Model Calibration and Validation results and a summary of Calibration
Adjustments.
0 Justification for use of multi-day storm event(if app|icab|e)
0 Justification Report mf changes infloodp|ainm
° F1uadp|ain Delineations with Transition Zones and Flood Depth Grids
0 (3A/QC Maps (Electronic Only)
m Polygon coverage showing areas where the digital terrain does not reflect the
ground conditions
m Bemdotabaoe
m Presentation to PARTNERS including m review of quality assurance
e Response to PARTNER Comments
2.1.4.11 Review Results Meetings
Meetings will be held if needed to discuss outstanding issues and items. Meetings will
be in remote login format; i.e., E)oToKqeeting.
Page i9uf23
2]�.3.2QA/QC Meeting
Meetings will be held if needed to confirm that all comments have been addressed. The
CONSULTANT will address all of the PARTNER comments and add the responses to
the comments geodsdabame.
2.1.4.4 Submit Revised Model and F|oodp&sin Delineation
Deliverables
° Draft PmwerPoint presentation and supporting documentation for presentation
to the PARTNERS.
w Revised Model and F|omdpkainDelineation.
m Provide Updated Justification Report of changes in f|omdp|eina and storm
durations greater than 24hours.
m Final PowerPmint presentation to,the PARTNERS.
m Attend meetings.
w Any other revised de|vereb|em for applicable tasks.
0 Commemtgeodatabase.
2.1A.5 Revised f|modp|ain analysis and delineation;
The CONSULTANT will revise the geodatabase and model, as appropriate, based on
comments and information received hmnn the PARTNERS. The C()WSULTANT^s
deliverable will conform to the latest edition of the DF|RM contractor's requirements. In
addition to floodplain polygons the CONSULTANT will develop the following additional
products once model and floodpUeina are considered final:
° 1-inch = 2OO4\scale aerial maps which will incKude�
o Main basin boundaries
o Sub-basin boundaries
o Sub-basin number(from model)
o Node and reach number(from mode|)
o Stream channel cross-section location and number
o Proposed channel improvement|ocebnne
o Existing channel dght-of+mey
o Storage areas
o Structure numbers
o 1O0-yeor/24-huur storm flood boundary
o 25'year/24-homr storm flood boundary
�
Flood ppu§|ee for the 100-year/24-hour and 25-year/24-hour events for the
main channel and the tributaries nf the Allen's Creek Watershed.
o Existing land use condition (Pinellas County Planning
Department) with existing mtonmw/etmrhaci1itiem and channel
conditions.
Deliverables
�
Revised flomdp8aim
� PDF copies of the 1-inch =28O-@ maps and flood profiles for review.
Page 20 oy2]
� One Final set of handoopy 1-inch = 208-ft maps and flood profiles only tothe
COUNTY for its records.
2.1.4.6 Level-of-Service determination;
The CONSULTANT will determine the Level-of-Service (LOS) throughout the
watershed consistent with COUNTY guidelines. The CONSULTANT will create aGWI8
feature n|esa in conformance with the G&8 (Guidance Document 1) and the reference
document, StonnwaterL*vel o/ Smn/ice Methodology, BVVFVVMD. 1093 (Guidance
Document 10). The Lews|-uf-Sen/iue documentation will also include em estimate ofthe
number of habitable structures within No,mdp|ain areas by reviewing aerial photography.
A F|modplehn Level-of-Service Report will be developed in compliance with the
accompanying section mf the E>&S(Guidance Document 1).
Deliverables
°
LOS Report
* LnSGeodatebame
2.1.47 Surface water resource assessment (water quality omly);
2.14Z1 Develop a watershed and water quality assessment of the Allen's Creek
VVatmnahed
Watershed Assessment
.
Aoaeoa existing Allen Creek watershed ohensoteh«tiva my|ekive to any known
anthnopug�emio or environmental heotope, and physical features within the watershed
which may be impacting water quality conditions or sampling results, particularly for the
impairment parameters, such as land use types, point and nmn-pmimt disoherges, extent
of existing stormwster runoff treatment, and baaeNmw.
Water Quality Assessment
Assess water quality data to identify tnamda' potential impairment hak, and any
noteworthy water quality issues that may be impacting the impairment condition. Data
sets examined will include the UVVRduta met used by FQEP, as w0 as additional data
met — as available — from the County and/or other pub|ima||y available water quality
monitoring efforts. This task will also include o field review oYsampling station locations
and the physical characteristics of theme stations, including the appropriateness of
sample sites for characterization cf surface water quality.
Pollution Loading Assessment
Deliverables
0 Watershed and Water Quality Data Assessment technical memorandum,
2.1.47.2 Pollutant Loading Model
The CONSULTANT vvi|| use the pollutant loading model developed for the Tampa Bay
Estuary Program and used most recently for the Tampa Bey Reasonable Assurance
Update and currently for the Clearwater Harbor-St. Joseph, Sound CCMP project h»
estimate TN, TP. BO�D. and TSS loads from the Allen's Creek Watershed. The existing
pollutant loading database has monthly estimates from 1Q85through 20O7. A report will
be presented to summarize the work related to the water quality assessment,
consistent with the requirements in the accompanying section of the �G&S (Guidance
Document 1).
Page 2| of%3
The pollutant loading model will b* used bo evaluate the impacts due bo land use. This
will entail modification of the existing land use according to a scenario agreed upon by
the PARTNERS and the CONSULTANT. The changes in the spatial and temporal
variation in pollutant loads will beevaluated.
Deliverables
�
Pollutant Loading Model G|Sfiles
w
Pollution Loading Assessment technical memorandum
2.1.4I3 Stream Condition Index
This task will consist of conducting up to eight Stream Condition Index (SCI)
assessments in the freshwater portions of the Allen Creek watershed and up to four
Habitat Assessments in the estuarine portions of Allen's Creek. SC! assessments will
be conducted according to FOEP 80p LT 7100. "Stream Comdibom Index (S0)
Determination." Habitat Assessments will be conducted aoomnjimg to FDEP SOP
FT3100. "Stream and River Habitat Assessment." The Stream Condition Index is a
surface water quality assessment method vvhiob ma|iem on hydpobio|mgioo| indicators
(such as freshwater macroinveMebrates) as a means of assessing vvsder quality in
streams. SO also includes conducting a habitat assessment within a 1&O-meterstretch
of the stream.
SCI will only be conducted at appropriate sites. The Following FDEP guidelines, 3C|
sampling will not occur et sites whmeai
~
Specific conductivity at the bottom of the river/stream exceeds GOU phmum
because cf estuarine influence
^
The site is currently dry, or has been dry within 3,months prior to the site visit
° The water level is elevated, mysu|hmg in mmneaohmNe habitat; however the SCI
sample maybe collected when water level has returned toa "normal" stage or
when the habitats are accessible
~
The site iehnaoin-|ake'|ike system (since the SCI was designed for streams)
QeHvare6|ea
0 Stream Condition Index technical memorandum
21.4.8 Bet Management Practices (BKAp)alternative analysis;
The CONSULTANT will conduct a 8R8P alternatives analysis for up to iO okn/ctuna|
BK8Pa and two non-structural BMPs in the watershed- An Alternative BK8P Analysis
Report will bedeveloped.
The CONSULTANT will model the selected BK0Pa using ]CPR and will estimate the
pollutant load reductions for the BMPs, The CONSULTANT will rank the alternatives
based on a combination of cost and ease of implementation, including current
regulatory requirements, and compensatory mitigation rules. The CONSULTANT will
not apply for conceptual ERP permits for the propomedBMPa.
Deliverables
0 BN1P Alternative Analysis Report.
a |CPR model and model results for BhBPm
0 PoNutamt load reduction estimates for the B&0P
° Ranking ofBK@palternatives.
Page Z2mf23
2.1.4.9 Project management and quality assurance/control;
This task includes one meeting and meceamaryfo|hw-up conference calls or meetings
between the CONSULTANT, the, PARTNERS, and other consultant(s) performing
maintenance of other watersheds to maintain omnm|abonoy in the methodology. It also
includes at |eeui two meetings with the PARTNERS to discuss the Watershed
Management Plan, and final deliverables. The CONSULTANT will prepare m Digital
Quality Assurance/Quality Control (QA/QC) nawiem yN}<D for the watershed. It will
include the following layers and hnQmnn*tiom: historical and 200812009 imagery, terrain
information, soils, land use, FEKdA Q3 data or current effective fbodp|aimm, review
comments and nemponaeu, high water mark database hnfmnnetion. SUR(9O information.
sub-basins, ]unotionn, netwmrk, abutting watershed boundaries, *oads, parcels, and
ERPs included in the surface water model. The QA/QC review MXD will be used during
the various meetings.
This task includes time for project management and quality assurance/quality control
for the ^VVebmrahed Management P|an^ bask. The CONSULTANT will conduct quality
aamonamoe and quality control. Reviews will be documented by GVS ahapedi|e or
memorandum with attached Qnaphica, oa appropriate. Additionally, all reviews will be
recorded ina master QA/QC log spreadsheet.
The Engineer of Record will certify that quality assurance/quality control has been
performed on all deliverables and that any outstanding issues have been
communicated tmthe PARTNERS
Deliverables:
m
Participation im meetings and conference calls aameeded�
�
The digital QA/QC map.
21.4,10 Final approved deliverables for the Watershed Management Plan;
Final deliverables will include the e|eutmzmic versions of the updated G&S GVVS
geodatabeae and tables, modeling files, and the G&S map atlas.
The Watershed Management Plan list of deliverables will be compiled, to generally
include the GVVSgeodababaae and Watershed Management Plan Document. The final
TSQN will be included with this submittal in digital Rzmoad. Please note that the TSON
will be submitted two times im digital format, asedraft and e final version.
Deliverables
m
Electronic version of the updated B&S GWIS geodstabame and tables,
including the final!TSQM.
�
Modeling files.
w
The G&Smap atlas
Page 23of23