CN-370000-BS136-T30.pdf

ATTACHMENT C – TASK ASSIGNMENT FORM

FIXED-PRICE FEE SCHEDULE COST REIMBURSEMENT

CONTRACTOR FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION

Date cc: Procurement Section (MS93) Bureau of Finance & Accounting (MS78) - 2 copies

Funding Information:

TOTAL TASK ASSIGNMENT VALUE

Deliverables: See attached Scope of Work

Performance Measures:

TASK ASSIGNMENT TYPE AND NOT TO EXCEED AMOUNTS:

Org. Code

DEP CONTRACT NO.____

Date:

Financial Consequences: As per Professional Services Contract No BS136 between DEP and Atkins North America, Inc.

Period of Performance: Execution of Task Assignment through

|E.O. |Object Code |Budget Entity|Special Category | |YearGrant # |Amount________

Contract Manager Matthew Taylor

As per Professional Services Contract No BS136, work activities will be reviewed by FDEP to ensure that they are complete, accurate, and timely

BS136

COOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOONTRACTOR

Cooooooooooontractctctctctcttctctctctctcctctctcctttcctctttcctcttctcttttttttttttttttttttttttt Managgggggggggaggggggggggggggggggggggggggggggereeeerererreeeerreeeeereeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee h l

Task Assignment Number:

Contractor Name: Atkins North America, Inc

Contractor Representative: Matthew Taylor DEP Contract Manager: Chelsey Sliger

Task Description (Use additional sheets if necessary):

Project Manager Date

Contract Manager Date Chelsey Sliger

APPROVED:

Budget Representative Date

Contractual Authority Date

10/8/2024

Dam breach modeling using DSS WISE for the estimation of PAR for 100+ dams.

March 11, 2025

105,982.53

$ 105,982.53

10/8/2024 Tracy Woods Digitally signed by Tracy Woods Date: 2024.10.09 13:00:33 -04'00'

Chelsey E.

Sliger

Digitally signed by Chelsey E. Sliger Date: 2024.10.10 15:13:25 -04'00'

Digitally signed by Avery Lehmann Date: 2024.10.11 09:44:26 -04'00'

Digitally signed by John Coates Date: 2024.10.29 14:43:16 -04'00'

October 8, 2024

Ms. Tracy Woods, P.G.

State Dam Safety Officer Program & Technical Services Division of Water Resource Management Florida Department of Environmental Protection (DEP) 2600 Blair Stone Road Tallahassee, FL 32399

RE: DEP WR Contract: BS136 Project Proposal

DSS-WISE Lite Modeling and Population at Risk determination for state-regulated dams to support DEP evaluation of hazard potential classification updates to the National Inventory of Dams (NID)

Dear Ms. Woods:

At your request, AtkinsRéalis (Atkins) is pleased to provide this proposal to provide additional technical support including development of data for state regulated dams and assistance to the Florida DEP (FDEP) in the state’s effort to reevaluate the downstream hazard potential classifications for dams identified in the NID.

Background

The FDEP is the state agency responsible for regulating dam safety in support of the National Dam Safety Program (NDSP). DEP and the five Florida Water Management Districts form the Florida Dam Safety Program, with regulatory authority assigned by geographic coverage area, ownership, or use.

In support of the NDSP, FDEP provides data to the US Army Corps of Engineers who maintain the NID.

The NID has 1070 state regulated dams in Florida.

The NID includes data related to the regulated dams. It is common across the US that the physical data for dams listed in the NID was developed many years ago and may not accurately reflect the present-day physical data related to the regulated dam.

In Florida, the determination of the downstream hazard potential classifications of state regulated inventory of dams has been sporadically updated. According to the NID, Florida has 95 state regulated high hazard potential dams. A high downstream hazard potential dam classification is based on the determination for a potential for loss of life in the event of a dam failure.

According to the NID, Florida has 335 state regulated significant hazard potential dams, 433 low hazard potential dams, and 207 unknown hazard potential dams.

From a public safety perspective, it is important to accurately document the downstream hazard potential classification for the dam inventory. Florida has experienced extremely strong population growth, and the current downstream hazard potential classifications may have increased due to downstream development. It is critically important to focus on the 975 dams in the state regulated inventory that are not classified as high hazard potential to determine whether the potential for life loss exists in the event of a dam failure and the hazard potential classification should be identified as high hazard.

In 2023, FDEP invested in a modification to the DSS-WISE™ Lite dam breach modeling and mapping tool in anticipation of reevaluating the downstream hazard potential classifications of dams. DSS- WISE™ Lite is a web-based, automated two-dimensional dam-break flood modeling and mapping capability developed by the National Center for Computational Hydroscience and Engineering (NCCHE), the University of Mississippi. The development of the web-based tool and its operation and maintenance is supported by the U.S. Federal Emergency Management Agency (FEMA).

The purpose of this project is to focus on a sample segment of the 975 state regulated dams listed in the NID that are not categorized as high hazard potential, particularly those with an undetermined downstream hazard potential. Since dam breach flood inundation mapping may not be readily available for most the 975 dams to document whether population at risk is in the dam breach flood inundation area, a phased screening process will be used to identify dams likely to be high hazard potential and dams not likely to be high hazard potential. DSS-WISE Lite modeling will be performed for sunny day failures at the estimated top of dam elevations to confirm the population at risk (PAR) in the dam breach inundation zone, thereby indicating dams with high hazard potential classifications.

Atkins is presently tasked by FDEP to conduct a pilot application of using DSS-WISE Lite on 50 regulated dams in Florida.

As part of this project, Atkins will develop DSS-WISE Lite modeling for a second block of dams according to the following scope of work.

Scope of Work

DSS-WISE Lite modeling to estimate FL PAR for select dams

Atkins will perform simplified dam breach modeling for the estimation of PAR for a portion of the 975 significant, low, and unknown hazard potential dams.

The number of dams to be modeled is dependent on potential for use of automation to mass produce may models quickly and the availability of data, a minimum of 100 dams will be modelled. Atkins will recommend the initial list of dams to be studied starting first with undetermined risk dams then progressing to the significant and low hazard potential dams in that order. FDEP would have the final say in the selection of dams modeled and in what order.

The DSS-WISE Lite modeling will be performed consistent with the methodology developed as part of the previous task order to model 50 dams that was subsequently approved by FDEP for use on this task order.

Assumptions Some dams may have missing NID data, in addition to the missing stage storage at the top of dam, and those dams will be excluded from this list of dams for the determination of PAR.

It is assumed no more than 1 hour per dam for an engineer and 1 hour per dam for a GIS Specialist is required to complete the modeling and estimate for PAR.

Atkins will estimate PAR for a minimum of 100 dams using data included from the NID.

Atkins will use NID data in the determination of the sunny day dam breach flood scenario.

The DSS-WISE HCOM module uses a depth times velocity method to estimate PAR.

No field observations, measurements or surveys will be performed.

Deliverables The following deliverables will be provided:

1. Draft DSS-WISE Lite generated reports for each dam, DSS-WISE Lite generated files, Digital datasets used to calculate PAR, and Excel spreadsheet with key dam data and the FL dam safety PAR.

2. Final DSS-WISE Lite generated reports for each dam, with consideration of DEP comments.

Performance Measures: Deliverables will be reviewed by DEP to confirm that they are complete, accurate, and timely.

Key Personnel

FDEP

Role Name Entity

Project Manager Tracy Woods FDEP Contract Manager Chelsey Sliger FDEP

AtkinsRéalis Role Name

Project Director Matthew Taylor Project Manager Sarada Kalikivaya Sr. GIS Analyst II Jesse Morgan

Sr. Engineer Marie Hauser QC Manager Diana Castro

Project Deliverables, Costs, and Invoicing

Deliverable Total Cost

DSS-WISE Lite modelling to estimate FL PAR for select dams $105,982.53

Atkins will perform the services on a fixed price basis and will invoice each task upon FDEP acceptance of the task deliverables.

Invoicing will be accompanied by a brief description of the work effort completed, including deliverables achieved, and further documentation as specified in Contract BS136. Compensation will not be paid for a deliverable until the deliverable has been completed and accepted by the FDEP.

Project Schedule

The proposed scope of work will begin immediately upon notice to proceed (NTP) and be completed by March 11, 2025. The following anticipated durations are for the initial submission of each subtask.

Task Anticipated duration Task 1: Draft DSS-WISE Lite models and PAR 60 calendar days from the NTP Task 1: Final DSS-WISE Lite models and PAR 30 days from receipt of FDEP review comments

Total Completion on or before March 11, 2025 The overall completion data assumes 14 calendar days for review of draft submittal by FDEP

AUTHORIZATION

This following individual is a representative for the Atkins North America, Inc. with the authority to enter a binding Contract with the FDEP:

Signature Date

Name and Title

Matthew Taylor, Vice President

Company Name

Atkins North America, Inc.

e and Tiiittttttttttttttttttttlllllllllllllllllllllllllllllllllllllleeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

10/8/2024

St af f H

RS

Co st b y

Po s

A ct St af f

H

RS

Co st b y Po s

Ac t St af f H

RS

Co st b y

Po s

Ac t

St af f H

RS

Co st b y Po s

A ct

St af f H

RS

Co st b y

Po s

A ct St af f H

R

AC

TI

VI

TY

SA

LA

R

Y

CO

ST

BY

A

CT

IV

IT

Y

Ta sk

: D

SS

-W

IS

E

Li te m od el in g

,7

.0

,4

.7

,0

.7

,3

.2

,9

.5

$9

8, 7.

Ta sk

: F in al

R ep or t

$7

.0

$1

8.

$1

6.

$2

9.

$9

.9

$7 ,4

.2

Pr oj ec t T ot al

$1 3, 6.

$2 1, 7.

$2

1, 3.

$3 1, 1.

$1

7, 3.

$1

,9

.5

TO

TA

L

At ta ch m en t B

Fe e Br ea kd ow n

Fl or id a

D ep ar tm en t o f E nv ir on m en ta l P ro te ct io n (F

D

EP

AC

TI

VI

TY

D

ES

CR

IP

TI

O

N

Sr . E ng I

V R at e/

H r.

6.

Sr

. E ng

I

II

R at e/ H

Sr . E ng I

I R at e/

H

5.

Sr

. E ng

I R at e/

H

Sr

G

IS

A na ly st

I R at e/

H

.8