Contract No. BS136

ATTACHMENT D – TASK ASSIGNMENT CHANGE ORDER FORM

DEP CONTRACT NO.

Task Assignment Number: Date: Change Order No.

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CHANGE IN TASK AMOUNT

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Net Increase/Decrease in Task Amount:

Task Amount with all Change Orders:

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CHANGE IN TASK TIME

FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION

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Cost Center Administrator cc: DEP Procurement Section (MS93), Bureau of Finance and Accounting (MS78) – 2 copies

Date

From: Cusack, Matthew T <Matt.Cusack@atkinsrealis.com> Sent: Monday, August 26, 2024 2:11 PM To: Kanes, Jessica <Jessica.Kanes@FloridaDEP.gov>; Taylor, Matthew A (Orlando) <Matthew.Taylor@atkinsrealis.com>; Sliger, Chelsey <Chelsey.Sliger@FloridaDEP.gov> Cc: DWRMGrants_Contracts <DWRMGrants_Contracts@floridadep.gov> Subject: RE: BS136 TA25 CO1

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Greetings, I have been working with Pearce Barrett and Devurnya Roberts, so those are possibly the best recipients to review.

As far as the schedule, Pearce and I worked out the following language:

Atkins’ Task Assignment no. 25 under DEP Contract no. BS136 was fully executed on February 14, 2024. The Task Order allowed for a total of 203 days to complete all tasks as described in the scope of services. All subsequent task completion dates were set from Task 1, the date of acquisition of the aerial photography, which was delayed due to unsuitable weather conditions until April 2024, approximately sixty days behind the original intended date.

Although subsequent tasks have been completed within the allotted time frames set forth in the project schedule, presented in the Scope of Services, the final report will not be able to be submitted and reviewed by DEP within the original 203 days. This being due to the unforeseen weather delays that prevented Task 1, Aerial Photography Collection from being done within the original schedule. Because of this initial delay and to provide DEP sufficient time to adequately review the final report, Atkins requests a 90 day no-cost extension to accommodate the field work and report scheduling. This would extend the original Task Order end date from September 16, 2024, until December 13, 2024.

Task Anticipated duration

Kick-off Meeting 2 weeks from NTP (2/14/2024)

Aerial Photography Collection 1 day, schedule TDB

Aerial Photography Processing 60 days from Collection

Seagrass Mapping 60 from receipt of aerial

Report and Data Acceptance 30 days from completion of field work

Total 303 days

Best, Matthew Cusack (He/Him) PMP, PWS Technical Manager II Planning and Environmental TPO AtkinsRéalis Tel: +1 919 431 5255 Mob: 919-800-1234 LinkedIn 1616 East Millbrook Road, Suite 160 Raleigh, NC, 27609, US

Figure 1. Area of Interest for seagrass and prop scar mapping.

Scope of Work

Atkins will provide professional services as set forth in the following Tasks to fully complete all agreed-upon elements of the above-mentioned project.

Task 1. Collection of 2024 Multi-Spectral Aerial Photography.

Atkins is partnered with NV5 (formerly known as Quantum Spatial) for the delivery of custom aerial photography for this project.

NV5 will acquire 4-band high-resolution aerial imagery in 6� pixel resolution over each of the area of interest (AOI) for each AP. NV5 is recommending 6� pixel resolution to assist with the Seagrass Mapping.

Flight Plans The 4-band high resolution imagery will be acquired using an overlapping flight plan as shown in Figure 2. Although this data is to be collected in 12-bit format, it is understood that only the 8-bit tiffs will be provided for review and utilization. Negative low tides are not required for the mapping but may influence how well the imagery can be used for mapping seagrass. Tidal stage is important when mapping seagrass as seagrass is more easily discerned at lower tidal conditions.

Figure 2. Flight Plans for collection of aerial photography. Provided by NV5.� Deliverables:

Deliverables

1. Aerial imagery orthomosaics

a. High-resolution aerial imagery taken during winter low tides

b. Georeferenced orthomosaics that can be used to construct shapefiles showing the location, shape and size of visible seagrass.

2. Final Flight Report including documentation of methods and data

Task 2. 30-Percent Interim Review

Atkins will review the aerial imagery collected in Task 1. Atkins will analyze the georeferenced aerial imagery of St. Joseph Bay AP in Gulf County to map visible seagrass beds, and then identify areas of potential propeller scarring.

Atkins will submit an interim deliverable for review by CPAP. This will be submitted at the 30-percent complete stage (coverage by area) and will allow for CPAP to review the detail and quality of the seagrass bed and scarring work. While the final seagrass beds and dense scarring AOIs will be polygons (see Tasks 3 and 4), the interim data will be polyline all resources during the interim review to allow for ease of editing and communication.

Deliverables:

1. Interim review (30-percent coverage)

a. File geodatabase including

i. Seagrass bed boundaries (polylines)

ii. Seagrass points (indicates bed versus non-bed while developing polylines)

iii. Seagrass scar polylines

Task 3. Seagrass Bed Mapping

Atkins will continue to build upon the 30-percent review from Task 2, and will continue to use the aerial imagery collected in Task 1. Atkins will perform Heads up Digitizing (HUD) to identify visible seagrass beds within the two aquatic preserves. As the seagrass beds are mapped and finalized, Atkins will provide a quantifiable comparison between propeller scarring of the SAV identified in 2021 and the increase or decrease in SAV areas after restoration activities in 2021 and 2023.

Deliverables:

2. File geodatabase including

a. Seagrass beds (polygon feature class)

i. Mapping scale: 1;5,000

ii. Minimum Mapping Unit= 0.1 acre

Task 4. Prop Scar Mapping

Within the limits of the seagrass beds mapped in Task 3, Atkins will perform Heads up Digitizing (HUD) to identify areas of potential propeller scarring. Dense areas of scarring will also be identified through generation of area of interest (AOI) polygons for limited field truthing.

The dense scarring AOIs will be used to encapsulate areas of clustered and /or intersecting propeller scars. The primary emphasis, at first, shall be to identify those areas that meet the severely impacted criteria (of greater than 20% scarring) and are in water depths of 1.5 M or less in each of the selected AP.

Deliverables:

3. File geodatabase including

a. Dense scarring AOIs (polygon feature class)

b. Individual prop scars (polyline feature class)

Task 5. Field Verification and Technical Report

One day of on-water field work will be performed at each aquatic preserve. The goal of the field work will be to evaluate as many of the dense scar areas as can be visited given the constraints of tides, weather, and daylight. Once the field verification effort has been completed, Atkins will prepare a brief memo that provides a comparison of scar mapping from 2024 to the previous mapping efforts, as well as an accuracy assessment of field verified scar areas. The technical note will include maps of example areas for comparison.

Assumptions

All seagrass deliverables will be submitted in ESRI file geodatabase digital format No new survey data will be collected.

Field work will include 10 hours per person for round trip travel and two days on the water total, in one field mobilization. Both aquatic preserves will be visited during that mobilization.

o One day of round trip travel, and one day on-water at each aquatic preserve.

Atkins will evaluate as many of the dense scar areas as can be visited given the constraints of tides, weather, and daylight. Each day is assumed to be 10-hours per person to allow for ingress/egress to field sites.

30-percent technical review: Atkins assumes that the FDEP review will not take more than 2 weeks before we receive comments.

The above services can be provided as Additional Services to this agreement if required by the

FDEP.

Project Deliverables, Costs, and Invoicing

Table 1. Project Deliverables and Invoicing Schedule

Deliverable Total Cost

Task 1: $49,429 Task 2: $14,895 Task 3: $21,662 Task 4: $22,496 Task 5: $16,385

Total $124,867 Note: This proposal has been estimated as a Fixed fee.

Project Schedule

The proposed scope of work will begin immediately upon notice to proceed (NTP). It is anticipated that project schedule will proceed as follows:

Task Anticipated duration

Kick-off Meeting 2 weeks from NTP

Aerial Photography Collection 1 day, schedule T

Aerial Photography Processing 60 days from Collection

Seagrass Mapping 60 from receipt of aerial

Report and Data Acceptance 30 days from completion of field work

Total 03 days

All contract deliverables will be submitted to the Department and accepted before , 2024.