HomeMy WebLinkAbout08.j EDB Keystone Heights WRF Expansion 2024 EXECUTIVE SUMMARY
AGENDA ITEM:
Proposed Supplemental Agreement (SA) No. 15 with Ardurra Group, Inc (CONSULTANT) to
provide engineering and technical services for Keystone Heights Water Reclamation (KH WRF)
Facility Evaluation Expansion Project.
Job Number: 2210-022
Financial Job Number:
Date: February 14, 2024
BACKGROUND:
Staff requests approval of SA No. 15 with the CONSULTANT to provide engineering and
technical services for Keystone Heights WRF Facility Evaluation Expansion Project.
CCUA operates and maintains the KH WRF that serves predominately commercial portions of the
Keystone Heights service area. The KH WWTF has a permitted annual average daily flow
(AADF) treatment capacity of 0.074 million gallons per day (mgd) and discharges secondarily
treated water to rapid infiltration basins(RIBs)that have a permitted AADF capacity of 0.20 mgd.
The Keystone Heights area is a prominent recharge area, so this water is considered beneficially
reused through recharge.
The plant consists primarily of horizontal steel package plant equipment and is in need of
rehabilitation to the headworks, clarifier, and electrical components. In addition, CCUA's 2023
KHWRF Capacity Analysis Report identified the need for expansion of this facility within the next
36 months to serve requested service expansions in the area.
Staff identified these needs in the five(5)year capital improvement plan and budgeted for an initial
planning study and preliminary design report this fiscal year. Staff coordinated with the
CONSULTANT to develop the attached proposal to provide planning services for the
rehabilitation and expansion of the plant.
This planning project includes evaluating the range of growth potential in the area on both 10-and
20-year terms, conducting a regulatory analysis, evaluating condition and rehabilitation needs of
existing unit processes and equipment at the KH WRF, developing and evaluating improvement
and expansion alternatives,and presenting the selected alternative in a preliminary design report
sufficient to move directly to design. Also included is time sufficient to evaluate and apply for
American Rescue Plan Act funding should it become available in state funds this year.
//PS (Author)
//AA(Review)
//PS (Final)
Key components of the work and Compensation Terms are summarized in the table below:
Task Compensation Amount
Terms
1 -Project Management and Coordination Lump Sum $61,051.20
2-Survey/Geotechnical/Subconsultants Lump Sum $84,064.80
3 -Preliminary Design Report Lump Sum $71,232.00
4-30% Design/PDR Lump Sum $68,969.60
5- Contingency and ARPA Allowance Time and Materials $25,740.16
Totals $311,057.76
BUDGET:
Staff budgeted $500,000 for the project. This project has no previous encumbrances.
CCNA:
CCNA, F.S. s. 287.055, does apply to the use of a consultant under continuing contract. The
estimated cost for this study does not exceed $500,000. Staff negotiated this Supplemental
Agreement for the professional services at a compensation which the agency determines is fair,
competitive, and reasonable in compliance with F.S. s. 287.055.
RECOMMENDATION:
Staff respectfully requests the Board of Supervisors' approval of Supplemental Agreement No. 15
engaging Ardurra Group, Inc., for the Keystone Heights Water Reclamation Facility
Expansion Project Peter's Creek WWTP Phase II Expansion Planning.
ATTACHMENTS:
Supplemental Agreement No. 15
Scope of Services
//PS (Author)
//AA(Review)
//PS (Final)
Supplemental Agreement No. 15 to Professional Engineering Services Agreement
18/19 No. 3 to provide Engineering and Technical services for Keystone Heights Water
Reclamation (KH WRF) Facility Evaluation Expansion Project.
CCUA Project No. 2210-022
Engineer: Dave Rasmussen, P.E. Owner: Clay County
Constantine Engineering, LLC Utility Authority
100 Center Creek Road, Suite 108
St. Augustine, FL, 32084
Date: February 20, 2024
Item: Description of Services:
Provide professional engineering services as
requested and identified in the attached scope of
services and fee proposal.
Task 1 Project Management $61,051.20
Task 2 Keystone Heights WWTF Evaluation $84,064.80
Task 3 Preliminary Design $71,232.00
Task 4 Survey and Geotech Investigations $68,969.00
Task 5 Contingency 10% $25,740.16
Total Lump Sum Price Not to Exceed Without Prior Authorization $311,057.76
The Contract time shall commence on February 20, 2024. This document, along with the Scope and Fee
Proposal, shall become an amendment to the Professional Engineering Services Agreement and all
provisions of the Agreement will apply hereto.
Accepted by: Date:
Engineer:
David Rasmussen, P.E
Constantine Engineering, LLC
Accepted by: Date:
Owner:
Jeremy D. Johnston, P.E., MBA,
Executive Director
Clay County Utility Authority
/\\ ARDURRA GROUP,INC.
405 GOLFWAY WEST D.STE 201A
ST.AUGUSTINE,FL 32095
R D U R R A PH:904-562-2185;FAX:888-215-3835
WWW.ARDURRA.COM
TASK ORDER 15
THIS TASK ORDER IS PURSUANT TO THE AGREEMENT FOR CONSULTING ENGINEERING SERVICES BETWEEN
CLAY COUNTY UTILITY AUTHORITY AND CONSTANTINE ENGINEERING,LLC.(DBA Ardurra Group,Inc.),(RFQ No.
18/19).WHICH IS INCORPORATED HEREIN BY THIS REFERENCE,WITH RESPECT TO
Scope of Services
for Professional Engineering Services for the Keystone
Heights Water Reclamation Facility Expansion Project
Article A. Purpose:
The purpose of this Task Order (TO) is to authorize and direct the Ardurra Group, Inc.
(CONSULTANT) to provide engineering and technical services for the Clay County
Utility Authority (CCUA) Keystone Heights Wastewater Treatment Facility (KH WRF)
Expansion Project (PROJECT).
CCUA operates and maintains the Keystone Heights WRF that serves portions of the
Keystone Heights wastewater service area,predominately commercial portions within the
city limits. The KH WRF has a permitted annual average daily flow (AADF) treatment
capacity of 0.074 million gallons per day (mgd) and discharges secondarily treated water
to rapid infiltration basins (RIBs) that have a permitted AADF capacity of 0.20 mgd. The
Keystone Heights area is a prominent recharge area, so this water is considered
beneficially reused through recharge.
The existing facility consists of a manual bar screen and grit system, three (3) horizontal
steel tank aeration tanks, one (1) clarifier, two (2) chlorine contact chambers for
disinfection and one(1) aerobic digester. The tanks are arranged in an MLE configuration
with some internal recycle.Effluent is discharged to the in-plant reuse system or to the two
(2)52,775-sqft RIBs.
Short lean improvements should be considered at the headworks and clarifier where
deterioration of the steel structure, mechanical, and electrical equipment was observed
during a site visit to the facility on November 20,2023.
CCUA's KH WRF Capacity Analysis Report dated 2023 references the Florida Office of
Economic and Demographic Research predicting a population increase of the City of
Keystone Heights of 5.73% from 2022 to 2025. This report also indicates a significant
expansion to an existing Recreational Vehicle (RV) Park with a goal of developing 1,035
total RV slips by 2030. The AADF to the WRF through August of 2023 was 0.032 mgd
which is about 43% of the permitted capacity of the facility.The demand from the RV park
should exceed the AADF permitted capacity within the next 12 to 36 months, and total
area demands will exceed the permitted AADF capacity of the RIBs in the next 10 years.
JEA has advised the RV park that it will be working towards a plant expansion,and CCUA
will limit new connections to remain below permitted capacity until new capacity is
available. The airport authority has also expressed interest in developing capacity in the
area. Accordingly,developing the range of capacity that is likely to be needed in both 10-
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TASK ORDER-CLAY COUNTY UTILITY AUTHORITY
KEYSTONE HEIGHTS WATER RECLAMATION FACILITY EXPANSION PROJECT
and 20-year timeframes is a key first element.
The purpose of this PROJECT is to evaluate the range of growth potential, conduct a
regulatory analysis to ensure beneficial recharge, evaluate existing unit processes and
equipment at the KH WRF, to develop and evaluate improvement and expansion
alternatives,and to develop and present a findings and recommendations report.
Article B. Scope of Services:
CONSULTANT will perform the necessary tasks to complete the PROJECT as defined in
this Scope of Services. The work associated with these engineering services is separated
into the following tasks:
• Task 1 -Project Management and Coordination
• Task 2-Topographic Survey and Geotechnical Investigation
• Task 3 -Keystone Heights WRF Evaluation
• Task 4-30% Design Documents and Preliminary Design Report
Task 1 - Project Management and Coordination
1.1 : Project Management
CONSULTANT will perform general administrative duties associated with the Project,
including project set-up, coordination with subconsultants, progress monitoring,
scheduling, general correspondence with CCUA's Project Manager, and monthly status
reports and invoices for engineering services in the format required by the contract.Status
reports will include a summary of work completed during the previous month. This task
will also include two (2) meetings with the Florida Department of Environmental
Protection for permit application coordination. Consultant will perform an American
Rescue Plan Act(ARPA)funding evaluation to determine if the project can be fast tracked
to take advantage of remaining available ARPA funds in 2024.
1.2 :Project Initiation and Kickoff Meeting
A Project Initiation Meeting will be conducted to confirm CCUA's goals and objectives,
identify roles, responsibilities, and communication protocols for project team members,
identify critical success factors,confirm concepts to be evaluated in the conceptual design,
identify existing information in planning documents on the project,and discuss the overall
Project Work Plan, deliverables, project schedule based upon CCUA Notice-To-Proceed
(NTP) date and critical milestones.
1.3 : Organize,Attend and Document Design Phase Meetings
This includes:
• One (1) site visit with CCUA to determine the project scope and investigation of unit
processes.
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TASK ORDER-CLAY COUNTY UTILITY AUTHORITY
KEYSTONE HEIGHTS WATER RECLAMATION FACILITY EXPANSION PROJECT
• Two (2) meetings with CCUA to review the KH WRF preliminary flows and loading
projections and to develop and review conceptual improvement and expansion
alternatives and concepts.
• One(1)meeting with CCUA to review the draft KH WRF Expansion Evaluation Report in
Task 3.The preparation of meeting agendas and meeting minutes are included in this task.
• One (1) meeting with CCUA to review the draft KH WRF Expansion 30% Design
Document and Preliminary Design Report in Task 4. The preparation of meeting agendas
and meeting minutes are included in this task.
1.4 : Quality Assurance/Quality Control
Activities performed under this task consist of those general functions required to
maintain the project schedule and budget and to control the quality of the work products
defined within this scope to be consistent with CONSULTANT's standards and OWNER's
expectations. QC procedures will include a technical review of the Expansion Evaluation
Report deliverable.
Task 2 - KH WRF Topographic Survey and Geotechnical Investigation
2.1: Topographic Survey
CONSULTANT will perform a topographical survey for the entire project site which
includes the Keystone Heights WRF site. Permanent control points based on available
existing benchmarks to USGS NAVD 88 datum will be established. The following items
will be included in the Survey scope:
1. Identification of the adjacent property for the purposes of establishing the existing
property corners as necessary.
2. Location of all structures and above ground improvements for the purpose of
establishing a base file for use in preparation of design documents.
3. Topographical survey of site within known boundaries and provide digital terrain
model of the site.
4. Remobilization and location of Geotechnical borings upon completion of drilling.
2.2: Geotechnical Investigation
CONSULTANT will subcontract the preparation of Geotechnical Report including design
recommendations for the project, siting boring locations & depths, tailoring field
investigation & laboratory activities to specific requirements of the project as necessary,
customary & in keeping with best practices for the project type & requirements. The
following items will be included in the Geotechnical Investigation Scope:
1. Nine (9)borings will be performed on the project.
2. Laboratory tests to determine subsurface conditions and provide recommendations for
foundations and subsurface improvements to accommodate proposed structures and
processes.
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TASK ORDER-CLAY COUNTY UTILITY AUTHORITY
KEYSTONE HEIGHTS WATER RECLAMATION FACILITY EXPANSION PROJECT
3. Coordination with geotechnical subconsultant and oversight of activities,including
selection and marking of boring locations and determination of necessary depths.
4. Analysis of laboratory results and preparation of detailed geotechnical report including
field data (documenting boring logs and groundwater depths),laboratory data and
design recommendations. Design recommendations shall include foundation
recommendations,yard piping recommendations (pipe bedding,backfill,flexible
connections,etc.),pavement recommendations and general construction
recommendations (site preparation,excavation, subgrade preparation, dewatering, site
backfill,etc.).
5. This report data will also be used by the CONSULTANT to perform the necessary
evaluations for the civil/sitework.
2.3: Groundwater Mounding Analysis
CONSULTANT will perform a groundwater mounding analysis of the existing RIB site to
determine whether there is available additional capacity in the existing RIB system to
accept additional effluent discharges. This analysis does not include evaluating other RIB
sites unless they are adjacent to the existing system. The following tasks will be included
in the scope:
1. Project Initiation and Geotechnical evaluation of the four (4) borings designated to the
RIBs.
2. Data collection, data analysis, and model development including reviewing rainfall
data,historic groundwater elevations,and general hydrogeological conditions.
3. Keystone Heights WRF RIBS Effluent Evaluation Technical Memorandum
4. Permit Coordination
The Subconsultants proposals are included in Attachments B,C,&D.
Task 3 - Keystone Heights WRF Evaluation
In general, the scope of this evaluation is to describe the existing facilities and unit
processes at the WRF,review the potential near and mid-term growth in the service area,
document the condition and capacity of the existing unit processes and equipment,
develop alternatives for improving the facilities and expanding the capacity of the WRF,
and recommending the proposed improvements and upgrades,as well as the operational
control strategies. This report will document the basis of design(BOD)for a future design
and construction project to implement the recommendations of the report and will provide
a 10% level of design with enough detail to serve as a reference to guide detailed design
for the KH WRF improvements. The evaluation will include drawings and figures, as
needed,to illustrate the preliminary design layout.
The evaluation will be in report format and will describe the BOD criteria.Type,number,
capacity,and size of all major facility components will be identified.Design objectives and
criteria for the new headworks and expansion with the new tanks will be developed,
including draft project schedules and consideration of external funding opportunities via
ARPA.
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TASK ORDER-CLAY COUNTY UTILITY AUTHORITY
KEYSTONE HEIGHTS WATER RECLAMATION FACILITY EXPANSION PROJECT
The evaluation in general will consist of the following work:
3.1:Review Existing Information and Data
CONSULTANT shall collect and review pertinent information and data regarding the
PROJECT and make this information and data available to the CCUA. Information and
data that may be reviewed includes,but is not limited to,the following:
• Existing design information
• Existing operations data including influent and effluent flow and loading characteristics.
• CCUA planning data and land use projections
• Existing geotechnical reports
• Existing permits and correspondence with Florida Department of Environmental
Protection (FDEP)
3.2: Wastewater Flow and Load Projections
A range of wastewater flow and loadings were provided by CCUA in its recent Capacity
Analysis Report. The information will be evaluated to determine future capacity needs for
the facility. The current system serves a small, mainly commercial corridor and an RV
park. Immediate future needs will include a large RV park expansion. Continued
expansion to include septic to sewer conversion in areas most immediately adjacent to
existing collection system infrastructure is envisioned, and CCUA has periodically
received requests to provide an unquantified level of service to the airport.
CONSULTANT will utilize the data provided by CCUA and other industry approved
methods to make recommendations on KH WRF permitted capacity and peaking factors
using an envelope approach.
Based on data from the existing KH WRF and recent typical wastewater characteristics in
CCUA's service territories,wastewater loadings will be developed for use as the basis for
evaluation of the facility. Carbonaceous oxygen demand (CBOD), total suspended solids
(TSS), total Kjeldahl nitrogen (TKN), total Nitrogen (TN), ammonia (NH3N), and total
phosphorus(TP)will be the primary wastewater constituents of concern.The data will be
analyzed for potential infiltration and inflow(I&I)issues that may exist at the facility. This
task will include one(1)site visit to discuss areas of the collection system where inflow and
infiltration (I&I) sources may exist, an initial consultation (one hour) with the Executive
Director and Chief Engineer,and a summary workshop presentation of the envelope range
of potential flows and loads identifying the range of years to fully utilize the existing site.
The analysis will be performed with the goal of producing effluent standards below the
permit requirements for disposal to RIBs with recharge of the surficial aquifer.
3.3: Condition Assessment
CONSULTANT,in collaboration with the CCUA,shall conduct a condition assessment of
facility assets. Facility assets will be assigned a physical condition (negligible, minor,
moderate,major,and severe condition). This task will include two (2) site visits to inspect
all assets of the facility and confirm the asset's condition. Recommendations for
replacement or rehabilitation of the asset will be provided in this Subtask.
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TASK ORDER-CLAY COUNTY UTILITY AUTHORITY
KEYSTONE HEIGHTS WATER RECLAMATION FACILITY EXPANSION PROJECT
3.4: Site Master Planning
The OWNER has available existing horizontal cylindrical steel tanks currently housed at
the Peters Creek WRF. These tanks will be incorporated into the KH WRF treatment
process to expand the treatment capacity of the facility using the influent flow and loading
projection from Task 2.2. Under this subtask,a site plan for locating and incorporating the
tanks into the treatment process and phasing alternatives in transitioning the relocated
cylindrical steel tanks into the treatment process will be provided.Up to two(2)alternative
configurations of the tanks and the relative costs associated with their relocation will be
considered in this evaluation. The consultant will also provide an alternative
configuration and order of magnitude cost for a full AWT configuration.
3.5:Process and Effluent Management Evaluation
CONSULTANT will perform a process and effluent management evaluation of the KH
WRF to evaluate the existing facility operation and the most effective and economical long-
term treatment options utilizing the Peters Creek WRF cylindrical steel tanks as part of the
expansion treatment process. The facility is currently operating below its permitted
capacity. Each unit process will be evaluated to optimize treatment, and improvements
recommended based on economic, regulatory, and operation and maintenance
parameters.
The current approach for effluent management is to discharge to RIBs because this is an
area of outstanding recharge. Accordingly, CCUA does not plan to incorporate public
access reuse (PAR) at this facility. This evaluation will include the RIB system condition
assessment and consider the RIB capacity for disposal of projected future flows. A
geotechnical investigation of the existing RIBs will be required to obtain groundwater
elevations and confirm percolation requirements are being met. It may be necessary to
expand the RIB disposal capacity to meet the future influent flows. One alternative that
will be considered is to increase rated capacity of the existing RIB system.Presently,the RIB
system is permitted at the minimum hydraulic loading rate of 1.9 gallons per day per
square foot (gpd/SF) of RIB bottom area. DEP allows disposal discharge rates of 5.6
gpd/SF,and higher,if these rates can be justified.We propose to perform a groundwater
mounding analysis of the existing RIB system to determine the available additional
capacity in the existing RIB system. This analysis does not include physically evaluating
other RIB sites but will identify from a desktop perspective potential RIB or plant locations
for further evaluation if the existing RIB sites are insufficient for anticipated future flows.
3.6:Major Equipment Selection and Considerations
Under this subtask, assets recommended for rehabilitation or replacement in Task 2.3 and
2.5 will be evaluated. Up to two (2) alternatives for each recommendation will be
evaluated. Electrical and I&C concepts will also be discussed in the evaluation,as well as
any special structural considerations that may be identified. Costs for each option will be
developed as part of this evaluation.
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TASK ORDER-CLAY COUNTY UTILITY AUTHORITY
KEYSTONE HEIGHTS WATER RECLAMATION FACILITY EXPANSION PROJECT
Task 4 - 30% Design Documents and Preliminary Design Report (PDR)
4.1:30% Design Documents and PDR
A preliminary design report will be prepared addressing the CCUA approved alternative
from the Conceptual Evaluation report in Task 2. The Preliminary Design Report will be
developed through the steps described in the tasks below.
The PDR will constitute the 30% level design effort and will be enough detail to serve as a
reference to guide detailed design of Keystone Heights WRF Expansion Project. The PDR
will include drawings and figures, as needed, to illustrate the preliminary design layout.
The PDR will describe the basis of design criteria. Type, number, capacity and size of all
major facility components will be identified. Design objectives and criteria for the pump
station will be developed.
In general,the PDR will include the following topics:
• Project Summary and Description
• Site Layout
• Summary of Design Parameters
• Electrical one-line diagram
• P&IDs
• Major equipment listing
• Plan views and major elevation drawings
• List of specifications
• Survey results
• Maintenance of plant operation considerations and sequencing
• Class 3 OPCC per the AACE Recommended Practice No.17R-97A,and with-20% to+30%
expected accuracy level.
• Project Schedule
• Summary of Required Permits
CONSULTANT will develop a draft 30% design documents and project design report,
conduct an internal quality control review, address quality control comments, and then
submit the final 30% design documents and project design report to CCUA for review.
Deliverables (issued via electronic delivery in PDF format)
• Topographic Survey (Draft/Final)
• Geotechnical Engineering and Investigation report, (Draft/Final)
• KH WRF Evaluation Report (Draft/Final)
• 30% design documents and project design report, (Draft/Final)
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TASK ORDER-CLAY COUNTY UTILITY AUTHORITY
KEYSTONE HEIGHTS WATER RECLAMATION FACILITY EXPANSION PROJECT
Assumptions
The following assumptions were used in the development of this task order agreement.
• CCUA will require a minimum of two(2) weeks to review.
CCUA Responsibilities
Below is a list of items that are not included in this Authorization and shall be provided by
CCUA unless an additional authorization for said services is agreed upon by CCUA and
CONSULTANT.
• CCUA to provide available record/as-built drawings and/or available documents related
to the improvements proposed in this TO.
Article C. Compensation Provisions:
As compensation for providing the services described within this Task Order,CCUA shall
pay CONSULTANT in accordance with the current 2018-2019 RFQ No 3 - Engineering
Professional Services Agreement, based on the estimated completion of the Project. The
total fee proposed for all Tasks is$311,057.76. These fees shall not be exceeded without a
revision to this Agreement. A breakdown of the proposed fee is provided as Attachment
A.
Article D. Period of Service:
The schedule for the Project within this Task Order is anticipated to be complete within six
(6)months from Notice to Proceed.
Article E. Authorized Representatives:
The Authorized Representatives designated below are authorized to act with respect to
this Task Order. Communications between the parties shall be through the Authorized
Representatives:
For CCUA For CONSULTANT
Name: Paul Steinbrecher,P.E. Name: Dave Rasmussen,P.E.
Chief Engineer Client Service Manager
Address:3176 Old Jennings Road Address: 405 Golfway West Drive,Suite 201A St.
Middleburg,FL 32068 Augustine,FL 32095
Telephone: Office:904-213-2408 Telephone: 407-334-8877
Mobile:904-219-4127
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TASK ORDER-CLAY COUNTY UTILITY AUTHORITY
KEYSTONE HEIGHTS WATER RECLAMATION FACILITY EXPANSION PROJECT
ATTACHMENT A:
FEE BREAKDOWN
9
Attachment A
CLIENT:Clay County Utility Authority
PROJECT:Keystone Heights WRF Expansion Project
Fee Estimate
Senior
Senior Project Sr.Professional Engineering Senior CADD
Task Reviewer Manager Engineer Intern II Designer Administrative Total Hours Total Cost
Rates $249.20 $224.00 $187.60 $112.00 $98.00 $64.40 - -
Task 1-Project Management and Coordination - -1.1-Project Management 0 96 0 0 0 80 176 $ 26,656.00
1.2—Project Initiation and Kickoff Meeting 0 8 8 12 0 0 28 $ 4,636.80
1.3-Organize,Attend and Document Design Phase Meetings 0 16 8 24 0 0 48 $ 7,772.80
1.4-Quality Assurance/Quality Control 80 8 0 0 0 4 92 $ 21,985.60
Subtotal Task 1 80 128 16 36 0 84 344 $ 61,051.20
Task 2-KH WWTF Topographic Survey and Geotechnical Investigation _
2.1—Topographic Survey 0 4 0 8 0 4 16 $ 2,049.60
2.2—Geotechnical Investigation 0 4 0 8 0 4 16 $ 2,049.60
2.3—Goundwater Mounding Analysis 0 4 0 8 0 4 16 $ 2,049.60
Subtotal Task 2 0 12 0 24 0 _ 12 48 $ 6,148.80
Task 3-Keystone Heights WWTF Evaluation II
3.1—Review Existing Information and Data 0 4 8 40 4 0 56 $ 7,268.80
3.2—Wastewater Flow and Projections 0 8 20 40 0 0 68 $ 10,024.00
3.3—Condition Assessment 0 4 12 80 0 0 96 $ 12,107.20
3.4—Site Master Planning 0 8 40 140 0 0 188 $ 24,976.00
3.5—Process and Efflunet Management Evaluation 0 10 8 40 0 2 60 $ 8,349.60
3.6—Major Equipment Selection and Considerations 0 4 16 40 0 2 62 $ 8,506.40
Subtotal Task 3 0 38 104 380 4 4 530 $ 71,232.00
—
Task 4-KH WWTF 60%PDR M
4.1—30%Design Documents&PDR 0 12 140 120 40 4 476 $ 68,969.60
Subtotal Task 4 0 12 140 120 40 4 476 $ 68,969.60
Total Labor Summary $ 207,401.60
Hours Per Category 80 178 120 440 4 100 922
%Labor per Category 9% 19% 13% 48% 0% 11% 100%
Subconsultants
DRMP Inc.(Topographic Survey) $ 21,695.00
CSI Geo(Geotechnical Investigation) $ 25,366.00
4Waters(Groundwater Mounding Analysis) $ 30,855.00
ARPA Funding Allowance $ 5,000.00
10%Contingency(Time and Material Not to Exceed) $ 20,740.16
TOTAL FEE $ 311,057.76
TASK ORDER-CLAY COUNTY UTILITY AUTHORITY
KEYSTONE HEIGHTS WATER RECLAMATION FACILITY EXPANSION PROJECT
ATTACHMENT B:
DRMP SURVEYING SERVICES PROPOSAL
10
t,* DRmp 8001 Belfort Parkway,Suite Jacksonville,Florida 32256
Phone:904.641.641.0123 I Fax:904.641.88.8858
1.833.811.3767 I www.DRMP.com
December 29, 2023
John Sinn, P.E.
Ardurra
405 Golfway West Dr, Suite 201A
St. Augustine FL 32095
100 Center Creek Road, Suite 108
St. Augustine, FL 32084
0: 904.593.5608 I M: 904.501.9332
sent via Email: jsinn@ardurra.com
RE: Professional Surveying Services for CCUA's Keystone Heights WWTF, Clay County, Florida
Dear Mr. Sinn,
DRMP is pleased to be working with you on this project. Below is our proposed Scope of Work and our
Fees to complete the project.
Scope of Work
Limits of the Project—the approximate project limits is the CCUA Property at 730 SW Nightingale St.
Topographic Survey—A topographic survey will be performed on the site. Topographic data will be
collected on a 50' grid and will include, but not limited to: roads, sidewalks, drainage structures,
swales/ditches, above ground indicators of utilities, mailboxes, street signs, endangered species habitats
(as designated by others), trees (6" DBH and up), etc. The Vertical Datum NAVD88 will be used.
Wetlands and Borings, if flagged or performed before we commence our survey, will be collected in
coordination with DRMP field work schedule, at no additional fee.
DRMP will establish a minimum of 3 Survey Control Points.
Boundary Survey—A boundary will not be performed of the site.
SUE —Designation
DRMP will provide Subsurface Utility Engineering (Utility Designation), Level `B" for the above
referenced site. 811 Design Ticket has been created.
DRMP will designate the underground utilities within the project limits and perform GPR scans at
several locations along the route to determine if there are any additional underground utilities within the
project limits. Designation flags will contain detailed information on utilities such as type of facility,
size, material, if know. This information will be included in the information collected during the survey
process. Efforts will be performed in accordance with Section 472.027, Florida Statutes Underground
Facility Damage Prevention and Safety Act, Chapter 556, Florida Statutes. All work shall conform to
ASCE C-1 38 -02 utilizing quality level B.
: DRMP
Designation flags/marks will contain discernable information on utilities such as type of facility, size,
material, and owner identification that will need to be attributed to the survey data collected. Efforts will
be performed in accordance with Section 472.027, Florida Statutes Underground Facility Damage
Prevention and Safety Act, Chapter 556, Florida Statutes. All work shall conform to ASCE 38 -02
utilizing quality level B.
Please note, Ground Penetrating Radar is effective in identifying subsurface disturbances, however there
are limitations. The depth, range and thus clarity of the returned image are limited by the electrical
conductivity of the ground. Optimal penetration is achieved in drier, sandier soils. Adversely, with
wetter, clay laden soils with higher electrical conductivity,penetration is reduced, sometimes to only a
few centimeters. Depending on the nature of the soil for the areas shown on the Exhibits, there could be
varying results.
SUE—Vacuum Test Holes
DRMP will perform Vacuum Test Holes (Soft Dig Holes or VVHs), to determine the horizontal and
vertical location of any existing underground utility lines at the locations determined by Mott
McDonald. Our staff will coordinate this effort with the engineering Project Manager before the
commencement of this work effort, if needed. During the process of the field work DRMP will prepare a
detailed report utilizing a subsurface utility form to describe the utilities and provide detailed
information as to the size, type, material, owner(if known) and the depth from an iron pin marking the
utility location at the surface. All efforts will be performed in accordance with the Underground Facility
Damage Prevention and Safety Act, Chapter 556, Florida Statutes. All work shall conform to CIIASCE
38-02 utilizing quality level A.
For the purposes of budgeting, an estimated 10 VVHs is used.
The MOT line item listed in the Fee Section below is for Temporary Traffic Control as needed when a
proposed Vacuum Test Hole falls in an area that will require a lane closure or lane shift to move traffic
away from the digging operations.
Deliverables—The survey will be delivered in electronic AutoCAD Civil 3D.
The Survey will conform to the Florida Standards of Practice for Surveying.
Schedule— Delivery to be 8 weeks from Notice to Proceed.
Fees
The fee to complete the Topographic Survey is: $ 9,195.00
The fee to complete the Utility Designation(SUE QL-B) is: $ 7,000.00
The fees to complete the Vacuum Test Holes (SUE QL-A) are:
In dirt or soft surface— 10 at $550 each $ 5,500.00
In asphalt or hard surface—0 at $600 each $ 0.00
Maintenance of Traffic (MOT)—0 days at $1800 per day $ 0.00
DRMP Fee $ 21,695.00
: DRMP
We sincerely appreciate this opportunity to provide professional services for this project.
Sincerely,
DRMP, Inc.
4*°°43---
Randy Tompkins, PSM, PLS, PS
Senior Project Manager
Approved by Date
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TASK ORDER-CLAY COUNTY UTILITY AUTHORITY
KEYSTONE HEIGHTS WATER RECLAMATION FACILITY EXPANSION PROJECT
ATTACHMENT C:
CSI GEOTECHNICAL EVALUATION PROPOSAL
11
CSI GEO Approach
CS Ge 0 CCUA Keystone Heights WWTF
Geotechnical • CMT • CEI 730 Nightingale Street
Keystone Heights,FL
The geotechnical exploration at the CCUA Keystone Heights WWTF will consist of field exploratory
borings,laboratory testing,and a geotechnical analysis of the collected data.
Project Scope — We understand that the project consists of expanding the existing CCUA Keystone
Heights Wastewater Treatment Facility(WWTF) capacity to meet the demand of the predicted population
increase of its service area. Additional features will include a 28-ft diameter Clarifier, two Cyclical
Process Tanks, and a Chlorine Contact Basin. In addition, two existing Rapid Infiltration Basin (RIB)
systems will also be expanded.
Field Exploration — As requested, our geotechnical investigation will consist of Standard Penetration
Test (SPT) borings. The SPT borings for the Clarifier, Cyclical Process Tanks and Chlorine Contact
Basin will be sampled continuously to a depth of 10 feet and then at 5-foot intervals thereafter. The SPT
borings for the RIB systems will be sampled continuously to the boring termination depths. Upon
completion, each boring will be grouted from bottom to top with a lean cementitious grout. In addition,
field-cased permeability tests will be performed at each RIB boring location to determine the soil's
vertical and horizonal permeability rates within the existing RIB systems. Soil samples collected will be
classified, containerized, marked in the field and returned to the laboratory for visual inspection and
classification by the geotechnical engineer using the Unified Soil Classification Systems (USCS). The
following table summarizes our proposed fieldwork:
Structure(s) Test Type Depth (ft)
1 SPT Boring(Center) 75
Clarifier
1 SPT Boring(Perimeter) 35
Cyclical Process Tanks 2 SPT Borings 60
Chlorine Contact Basin 1 SPT Boring 40
4 SPT Borings 20
RIBs
4 Field-Cased Permeability(Vertical/Horizontal) Tests TBD
Laboratory Testing - Laboratory classification and index soil tests will be performed as necessary on
selected soil samples obtained from the exploration. Specific tests to be performed are Moisture Content,
Organic Content, Atterberg Limits, and Percent Fines. In addition, Consolidation testing has been added
to our fee estimates if clay layers are encountered.
Submittals:
A geotechnical engineer, registered in the State of Florida, will direct the geotechnical exploration and
provide engineering analysis and evaluation of the site and subsurface conditions with respect to the
planned construction. The submittals will be presented as follows:
Geotechnical Exploration and Evaluation Report
• A brief discussion of the planned construction,
• A graphical representation of the subsurface conditions encountered,
Page 1 of 3
CSI GEO Approach
CS I Ge 0 CCUA Keystone Heights WWTF
Geotechnical • CMT • CEI 730 Nightingale Street
Keystone Heights,FL
• An appendix that contains soil boring profiles in AutoCAD format, laboratory test data sheets,
and other pertinent data,
• Written discussion of the subsurface conditions, groundwater levels encountered and an estimate
of the normal seasonal high groundwater levels,
• Evaluation of the subsurface soils and recommendations concerning the suitability of the
subsurface soils for support of the planned construction,
• Recommendations for shallow foundation design parameters, including our estimate of the
performance of the foundation systems,
• Evaluation of the subsurface soils within the RIB system areas, and an estimate of the soil
porosity and vertical/horizontal permeability rates,
• Recommendations for reuse of soil excavated from the RIB system areas as fill soil,
• Recommendations for over-excavation of unsuitable soils,backfill recommendations, and
• Recommendations for testing required during site preparation and earthwork construction.
Anticipated Completion Schedule:
Geotechnical Exploration and Evaluation Report
Approximately 45 working days after NTP
Page 2 of 3
GEOTECHNICAL FEE ESTIMATE 2394 St.Johns Bluff Road,Ste 200
CS I 0 CCUA Keystone Heights WWTF Jacksonville,Florida 32246
Geotechnical • CMT• CEI 730 Nightingale Street tel(904)641-1993
Keystone Heights,Florida
Number Estimated
Item Description Unit of Units Cost/Unit Cost
Field Investigation
Mobilization(Truck)-63 Miles ea. 1 $580.00 /ea. $580.00
Over 30 Miles mi. 33 $8.00 /mi. $264.00
Clairifier(28'Dia)
2 Standard Penetration Test(SPT)borings
1 Boring to 75'(Center)
0-50' ft. 50 $15.50 /ft. $775.00
>50 ft. 25 $17.50 /ft. $437.50
1 Boring to 35'(Perimeter) ft. 35 $15.50 /ft. $542.50
Cyclical Process Tanks
2 SPT borings to 60'
0-50' ft. 100 $15.50 /ft. $1,550.00
>50 ft. 20 $17.50 /ft. $350.00
Chlorine Contact Basin
1 SPT boring to 40' ft. 40 $15.50 /ft. $620.00
Rapid Infiltration Basin(RIB)Systems
4 SPT borings to 20' ft. 80 $15.50 /ft. $1,240.00
Continuous Sampling-Extra Spoons ea. 12 $42.00 /ea. $504.00
4 Field-Cased Permeability Tests ea. 4 $455.00 /ea. $1,820.00
Boring Layout/Utility Clearance/Field Coordination hr. 6 $120.00 /hr. $720.00
Temporary Casing ft. 90 $11.00 /ft. $990.00
Undisturbed Samples ea. 4 $160.00 /ea. $640.00
Grout Boreholes
0-50' ft. 305 $7.00 /ft. $2,135.00
>50 ft. 45 $8.00 /ft. $360.00
Subtotal: $13,528.00
Laboratory Testing
Moisture ea. 20 $22.00 /ea. $440.00
Material Finer Than No.200 Sieve ea. 20 $48.00 /ea. $960.00
Organic Content ea. 4 $52.00 /ea. $208.00
Atterberg Limits Test ea. 4 $115.00 /ea. $460.00
Consolidation Test ea. 2 $530.00 /ea. $1,060.00
Subtotal: $3,128.00
Engineering/Support Services
Project Manager hr. 4 235.00 /hr. $940.00
Project Engineer hr. 24 160.00 /hr. $3,840.00
Staff Engineer hr. 24 120.00 /hr. $2,880.00
CADD hr. 8 115.00 /hr. $920.00
Clerical hr. 2 65.00 /hr. $130.00
Subtotal: $8,710.00
TOTAL(Estimated): $25,366.00
Page 3 of 3
TASK ORDER-CLAY COUNTY UTILITY AUTHORITY
KEYSTONE HEIGHTS WATER RECLAMATION FACILITY EXPANSION PROJECT
ATTACHMENT D:
4WATERS MOUNDING ANALYSIS PROPOSAL
12
FOUR WATERS ENGINEERING, INC.
0 324 6th Avenue North
Q
Jacksonville Beach, FL 32250
(904) 414-2400 Office
January 5th, 2024
Sent Electronically
John Sinn
Engineering Associate
Ardurra
405 Golfway West Drive
Suite 201A
St. Augustine, Fl 32095
jsinn@adrdurra.com
Re: Proposal for Professional Engineering Services
Keystone Heights Wastewater Treatment Facility Effluent Management Evaluation
Dear Mr. Sinn:
Four Waters Engineering, Inc.(4Waters) is pleased to provide this proposal to Ardurra, Inc.for professional
engineering services to prepare an Effluent Management Evaluation (Effluent Evaluation)for the existing
Keystone Heights Wastewater Treatment Facility (KH WWTF).
Clay County Utility Authority (CCUA) operates and maintains the KH WWTF which requires immediate
facility improvements in addition to the need for an expansion. The facility serves the Keystone Heights
wastewater service area, which is predominantly comprised of commercial users, with an intended
Recreation Facility (RV) Park expansion by 2030.
The KW WWTF presently has a permitted annual average daily flow (AADF) treatment capacity of 0.074
million gallons per day (mgd) and discharges to rapid infiltration basins (RIBs) with a permitted AADF
capacity of 0.20 mgd. The existing facility consists of a manual bar screen and grit system, three (3)
aeration tanks, one (1) clarifier, two (2) chlorine contact chambers for disinfection and one (1) aerobic
digester with the effluent being discharged to the in-plant reuse system or to the two (2) 52,775 square
feet RIBs.
Currently, the RIB system is permitted at the minimum hydraulic loading rate of 1.9 gallons per day per
square foot (gpd/SF) of RIB bottom area. Ther Florida Department of Environmental Protection (FDEP)
allows for disposal discharge rates of 5.6 gpd/SF (potentially higher) if the rates can be justified. The
Effluent Evaluation will determine the hydraulic feasibility of increasing the effluent loading to the existing
RIB system to ensure the KH WWTF can meet the future needs of the service area. This will be evaluated
by means of groundwater hydraulic modeling utilizing the ICPR 4 (Interconnected Channel Pond Routing)
computer program developed by Streamline Technologies.
Should it be determined that the existing RIB system can meet the future hydraulic loading rate, 4Waters
has included a task to assist with FDEP permitting for a Substantial Modification to the Facility Permit or
Activity Permit.
324 6th Avenue North I Jacksonville Beach, Florida I www.4WEng.com I 904-414-2400
January 5th, 2024
Page 2
4Waters will not be responsible for the physical condition assessment of the existing RIB system and the
analysis does not include evaluating other RIB sites. Should it be determined the existing RIB system is
insufficient for the anticipated future flows, 4Waters can prepare a separate proposal to identify potential
RIB locations.
4Waters proposes the following four tasks to complete the requested project scope:
Task 1.0 - Project Initiation and Geotechnical Evaluation
Task 1.1:Project Initiation, Meetings and Site Visit:
It is understood that as part of Ardurra's Task Order 15, there will be a Project Initiation Meeting, on-site
Design Phase Meeting and final Review Meeting. 4Waters proposes to attend each of the three (3)
meetings as they will assist with confirming project goals and objectives, schedules, communication
protocols, concepts to be evaluated, available data, projected flow and loading projections, conceptual
and expansion alternatives and deliverables. In addition,the on-site meeting will allow 4Waters to observe
the existing RIB system and gather physical data that may not be available from as-built or permit
information.
If available, Ardurra will provide 4Waters with any data relating to the existing RIB system prior to the on-
site Design Phase Meeting. This data could be in the form of as-builts drawings, plans and supporting
documents, geological literature, soil survey reports, aerials, digital elevation models (DEM), past annual
Discharge Monitoring Reports (DMR), any previous evaluations of the sites and other available pertinent
data.
Task 1.2: Geotechnical Evaluation:
Per Task Order 15, Ardurra will separately subcontract for the preparation of a Geotechnical Report to
include nine (9) soil boring, analysis of laboratory test to determine subsurface conditions and
recommendations concerning the soil properties. It is requested that information relating to porosity and
vertical/horizontal conductivity at the boring locations in the vicinity of the RIBs be collected with the
geotechnical evaluation.
As well as providing information for the subsurface conditions, the data gathered from the geotechnical
evaluation will be utilized during the creation of the hydrogeologic model of the effluent disposal system
under Task 2.2.
Task 2.0 - Data Collection, Data Analysis and Model Development
Task 2.1:Data Collection and Data Analysis
The Data Collection and Data Analysis task will incorporate the following:
• Document Examination: Review available topographic maps, as-builts, geological literature,
Natural Resource Conservation Survey soil survey reports, aerials and previous data collected in
Task 1.1.
• Wastewater Flow Projections: A critical element in the evaluation of any effluent disposal site
involves an understanding of the existing and future flow projections. For this portion of the task,
4Waters will review past annual DMR effluent flow data and any CCUA planning data and flow
projections relating to the service area. Projection data will additionally be collected at the on-site
Design Phase Meeting.
324 6th Avenue North I Jacksonville Beach, Florida I www.4WEng.com 1904-414-2400
January 5th, 2024
Page 3
• Rainfall Data:Gather and analyze general meteorological data (rainfall,temperature, etc.)to gain
knowledge of the climatic site conditions.
• Historic Groundwater Elevations: If available review any previously conducted hydrogeological
evaluations.
• General Hydrogeological, Groundwater and Subsurface Conditions: Review and evaluate the
results from the geotechnical exploration soil borings to characterize the index and engineering
properties (permeability/hydraulic conductivity, porosity, grain distribution, etc.) and groundwater
levels of the representative soil samples.
Any necessary data requiring payment will be at Ardurra's expense.
Task 2.2 -Model Development and Analysis
All the data collected and analyzed in the previous tasks will be utilized to develop a hydrogeologic model
to determine whether there is available additional capacity in the existing RIB system to accept the future
effluent discharges.The simulations will be performed in ICPR 4,which is a computer simulation program
that predicts, using elapsed time scenarios, the response of the water table and the soil water regime
above it to rainfall, intensities of surface/subsurface drainage and surface effluent application.
The existing conditions simulations will provide information on the aquifer properties and validate the
design values/assumptions for the groundwater model prior to analysis of the proposed effluent flow
loadings. Once the model is validated and calibrated, 4Waters will use a trial-and-error procedure along
with best engineering judgement of the site conditions to determine allowable percolation/natural
recharge rates for the RIB system.The hydrogeologic model results will also be used to approximate water
table depth, surface and subsurface drainage volumes and accumulative periods when the water table
would be above a predetermined depth.The results of the alternatives,with engineer's recommendations
will be presented in the Effluent Evaluation Technical Memorandum as discussed below in Task 3.0.
Task 3.0 - Preparation of Effluent Evaluation Technical Memorandum
Once the above tasks are completed,4Waters will develop an Effluent Evaluation Technical Memorandum
for the existing RIB system. The report will summarize the regional and site-specific data collected from
the document review, present the results of the field exploration and laboratory investigations, address
the hydraulic feasibility of increasing the effluent loading to the existing RIB system, discuss model
scenario results and potential for increased effluent loading and document the analysis. The Effluent
Evaluation Technical Memorandum will be supplemented by figures and tables.
The deliverable for the Effluent Evaluation Technical Memorandum will include an electronic copy of the
final report and appendices with supporting documentation.
Task 4.0 - Permitting
Task 4.1:Pre-application Meeting with FDEP
If it is determined that the existing RIB system can meet the future hydraulic loading rate, 4Waters will
prepare for and attend a pre-application meeting with the FDEP regional office. The purpose of the
meeting will be to present the findings of the Effluent Evaluation and to elicit any FDEP concerns or
constraints that will need to be addressed in the permitting process. After the meeting 4Waters will
324 6th Avenue North I Jacksonville Beach, Florida I www.4WEng.com 1904-414-2400
January 5th, 2024
Page 4
provide a brief written summary to Ardurra with any key considerations arising from the meeting that will
have to be addressed in the permitting documents.
Task 4.2 Florida DEP Wastewater Facility or Activity Permitting- Substantial Modification Application
Increasing the hydraulic loading rate at the existing RIB will require an application for a substantial
revision to the wastewater facility permit application through FDEP. 4Waters will prepare and submit the
required permit application and supporting documentation for approval.
Included in the application will be:
• FDEP Form 62-620.910(1) and 62-620.901(2)
• Effluent Evaluation Technical Memorandum
• If required, Signed and Sealed Contract Drawings provided by Ardurra
Permit fees are not included in this proposal.
Task 4.3 Permit Modification Request for Additional Information
4Waters will respond to up to two (2) Request for Additional Information (RAI) on elements of the
wastewater permit modification application.
Task 4 will not be completed should a new RIB site be required.
Schedule and Professional Service Fees
We anticipate the Tasks 1 through 3 can be completed within four (4) months from Notice to Proceed
(pending receipt of Geotechnical Evaluation Data). A schedule for permitting will be defined once it is
determined if it is necessary. We are available to begin work immediately upon written approval.
We appreciate this opportunity to work with Ardurra and have attached a detailed fee summary sheet for
the project. The lump sum proposed fee to complete the tasks outlined above is a total of $30,855.00
(Task 1-3 Total $23,265.00 and Task 4 $7,590.00). If you have any questions, please contact me at
mklink@4WEng.com or (904) 414-2400 Ext. 54.
With best regards,
Four Waters Engineering, Inc.
zt7
Michael Klink, P.E.
Senior Engineer
CC: Laura Constantino, MSE
Attachment
324 6th Avenue North I Jacksonville Beach, Florida I www.4WEng.com I 904-414-2400
January 5th, 2024
Page 5
CCUA Keystone Heights
Proposal for Professional Engineering Services
Wastewater Treatment Facility Effluent Management Evaluation
IMENNIIII ■
Principal Senior Design Associate Engineer In GIS CAD Admin- Direct Costs Total
Engineer Engineer Engineer Engineer Training Draft istrative Professional
Task Description $165.00 $150.00 $125.00 $110.00 $85.00 $110.00 $100.00 $65.00 Service Fees
Hours Hours Hours Hours Hours Hours Hours Hours
$ $ $ $ $ $ $ $
i i
Task 1.0
Project Initiation and Geotechnical Evaluation
Task 1.1 0I $2,100.00 $2,250.00 $0.00 $0.00 $0.00 $0.00 I $0.00 $225.00 $4,575.00
Project Initiation,Meetings and Site Visit $0.00
Task 1.2
Geotechnical Evaluation Separately Subcontracted $0.00
Task 2.0
Data Collection,Data Analysis and Model Development _ _ _ _
Task 2.1 0 2 4 16 8 2 0 0
Data Collection and Data Analysis _ $0.00 _ $300.00 $500.00 $1,760.00 $680.00 $220.00 $0.00 $0.00 $0.00 $3,460.00
Task 2.2 0 8 16 40 4 6 0 0
Model Development and Analysis $0.00 _ $1,200.00 $2,000.00 $4,400.00 $340.00 $660.00 $0.00 $0.00 $0.00 $8,600.00
Task 3.0 0 4 12 32 0 8 0 2
Preparation of Effluent Evaluation Technical Memorandum $0.00 $600.00 $1,500.00 $3,520.00 $0.00 $880.00 $0.00 $130.00 $0.00 $6,630.00
Task 4.0*
Permitting _
Task 4.1 0 4 6 0 0 0 0 0
Pre-application Meeting with FDEP _ _ $0.00 _ $600.00 $750.00 $0.00 $0.00 $0.00 $0.00 $0.00 $50.00 _ _ $1,400.00 _
Task 4.2 0 4 12 32 0 4 0 2
Florida DEP Wastewater Facility or Activity Permitting-
Substantial Modification Application $0.00 $600.00 $1,500.00 $3,520.00 $0.00 $440.00 $0.00 $130.00 $0.00 $6,190.00
TOTAL $0.00 $5,400.00 $8,500.00 $13,200.00 $1,020.00 $2,200.00 $0.00 $260.00 $275.00 30,855.00
*Task 4.0 will only be completed if it is determined the existing RIB system can meet the future hydraulic loading rate.
324 6th Avenue North I Jacksonville Beach, Florida I www.4WEng.com I 904-414-2400