HomeMy Public PortalAboutWater Treatment Feasibility Study 2019TOWN OF GULF STREAM
Engineering Services for
Wastewater Feasibility Study Update
DATE: October 18, 2019
BACKGROUND
The Town's service area is mostly un-sewered, with wastewater currently treated through on-site
septic tanks or treatment systems and subsequently discharged to associated drain field systems.
There is an area on the north side of the Town's service area, near Town Hall, which is currently
serviced by a low pressure sewer system which collects and transfers flow to the City of Boynton
Beach for subsequent treatment and disposal.
DESCRIPTION OF WORK
In 2002, Mathews Consulting (MC) completed a "Wastewater Feasibility Study" for the Town
which evaluated the feasibility of installing a wastewater collection system throughout the Town's
service area. The Town has requested that Baxter & Woodman, Inc. (CONSULTANT) update
that report to reflect today's current design standards and construction costs.
SCOPE OF WORK
CONSULTANT proposes to provide the following services:
Task No. 1— Evaluation of Service Area and Wastewater Flows
CONSULTANT shall evaluate the service area, including the type and number of units within the
existing service area. CONSULTANT shall consider future growth and build -out conditions to
establish future service area conditions, number and type of units. CONSULTANT shall estimate
wastewater flows for existing and future conditions, including average daily flow and peak hour
flow rates. Specific tasks include the following:
• Meet with Town to discuss service area, population served and property characteristics.
• Conduct field inspection of service area, including potential tie-in locations with the City
of Delray Beach and the City of Boynton Beach.
• Collect as -built information for proposed sewer areas including tie-in points.
• Research property records and verify house/building locations/characteristics.
• Check water records for water consumption to assist with the development of potential
wastewater generation rate estimates.
• Develop flow projections for existing and future conditions.
• Evaluate the use of conventional gravity vs. low pressure system, including
advantages/disadvantages of each (i.e. construction and operation of systems for the
specific area).
• Write up task results and provide flow tables.
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Task No. 2 — Preliminary System Layout and Design
CONSULTANT shall provide preliminary layout and design of wastewater collection systems to
service the Town's service area. CONSULTANT shall consider two (2) flow options for the
collection system:
1) Transfer all flow to the City of Delray Beach Collection System
2) Transfer part of the flow to the City of Delray Beach and part of the flow to the City of
Boynton Beach collection system.
CONSULTANT shall coordinate with each of the City's to determine capacity of their system to
accept the Town's wastewater flow.
CONSULTANT shall consider two (2) design options for the collection system:
1) Conventional gravity system with lift stations
2) Low pressure system
Preliminary layout shall include schematic of system routing, pipe sizing, pump station capacity,
and acceptable tie-in locations at neighboring systems. It is assumed that a master wastewater
flow meter will be provided at the connection point with the neighboring City.
Specific tasks include the following:
• Meet with the City of Delray Beach and the City of Boynton Beach to verify possible tie-
in locations, restrictions, capacity limitations, etc.
• Update system layout for Option 1 (flow to Delray Beach)
• Update system layout for Option 2 (flow to Delray Beach and to Boynton Becah)
• Calculate required pipe sizes and invert elevations for Option 1
• Calculate required pipe sizes and invert elevations for Option 2
• Update system layout for low pressure system.
• Calculate design requirements for proposed lift stations. Identify pump, mechanical and
electrical requirements.
• Check capacity of Delray tie-in locations (Option 1 and 2). Calculate new conditions with
proposed flow.
• Check capacity of Boynton tie-in locations (Option 2). Calculate new conditions with
proposed flow.
• Write up task results.
Task No. 3 — Preliminary Cost Evaluation
CONSULTANT shall provide preliminary capital cost evaluation for the proposed system
layouts and flow routing options. Specific tasks to be completed:
• Contact the City of Delray Beach and the City of Boynton Beach to identify applicable
services fees and rates.
• Perform material quantity take -offs and prepare costs summary tables.
Page 2 of 8
Contact vendors and obtain costs for mechanical/electrical equipment.
Write up task results.
Task No. 4 — Regulatory Impacts
CONSULTANT shall identify potential regulatory impacts to constructing a new wastewater
collection system and tying into a neighboring City. Impacts that will be considered include
required permitting and associated fees, and contractual obligations that will be imposed by the
neighboring City, if any. Specific tasks to be completed:
• Research all regulatory impacts of project, including construction permits, operation
permits, and contractual obligations with neighboring cities.
• Correspond with FDOT to identify requirements and/or restrictions associated with
installing wastewater systems adjacent to State road.
• Write up task results.
Task No. 5 — Final Report
CONSULTANT shall develop a final report documenting results of task activities. Three (3)
copies of the DRAFT report shall be submitted to the Town for review. CONSULTANT shall
attend a review meeting with Town staff to discuss report and to obtain Town comments.
CONSULTANT shall also prepare and present a PowerPoint presentation to the Town
Commission. The presentation shall include a summary of findings of the Wastewater Feasibility
Study.
Upon receipt of Town comments, CONSULTANT shall finalize the report and submit four (4)
FINAL copies plus one (1) PDF copy to the Town.
ASSUMPTIONS
Work described herein is based upon the assumptions listed below. If conditions differ from those
assumed in a manner that will affect schedule of Scope of Work, CONSULTANT shall advise
Town in writing of the magnitude of the required adjustments. Changes in completion schedule
or compensation to CONSULTANT will be negotiated with Town.
1. Town shall provide CONSULTANT all background information regarding number of
units, person per household and estimated water usage for the Town's service area.
2. Town shall provide information relative to future build -out conditions.
3. Scope of services does not include providing recommendations for project financing or
identification of debt service and/or rate structure to support financing the program.
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ADDITIONAL PROVISIONS
• The services described herein will be provided in accordance with the current generally
accepted standards of the engineering profession. Reasonable material changes between
work tasks, or level of effort actually required and those budgeted, may serve as a basis for
modifying this scope and budget, as mutually agreed to between CONSULTANT and the
Town.
• CONSULTANT is entitled to rely upon the accuracy of historical and existing data and
in provided by the Town and others without independent review and verification.
CONSULTANT is not responsible for the means, methods, sequences, techniques or
procedures of Town and vendor operations or for safety precautions and programs.
• Any Opinion of the Construction Cost prepared by CONSULTANT represents its
judgment as a design professional and is supplied for the general guidance of Town. Since
CONSULTANT has no control over the cost of labor and material, or over competitive
bidding or market conditions, CONSULTANT does not guarantee the accuracy of such
opinions as compared to contractor bids or actual costs to the Town.
DELIVERABLES
TASKS DELIVERABLES
QUANTITY
5 Wastewater Feasibility DRAFT Report
3 — Hard Copies
Study
FINAL Report
4 — Hard Copies
1 —Electronic i.e. PDF)
PROJECT SCHEDULE
The duration and completion times of all tasks are summarized below and as indicated in the
project schedule shown in Attachment A:
Completion Time
(Calendar Days) from
Engineering Services Task Duration Notice to Proceed*
Task 1 —Evaluate Service Area & WW Flows 45 days 45 days
Task 2 — Preliminary System Layout 15 days 60 days
Task 3 — Preliminary Cost Evaluation 15 days 75 days
Task 4 — Regulatory Impacts 10 days 85 days
Task 5 — Final Report - DRAFT Report 30 days 115 days
- Town Review** 30 days 145 days
- FINAL Report 10 days 155 days
Total Project Time Period: 155 Calendar Days
*Assumes Town provides requested information within 30 days of Notice to proceed
**Includes time to present summary of report findings at Town Commission meeting on March
13, 2020
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SUMMARY OF PROPOSED FEES
Proposed labor costs and associated expense for engineering services are tabulated below.
Engineering Services Fees (Lump Sum)
Task No. 1 - Evaluate Service Area & WW Flows $ 6,350.00
Task No. 2 - Preliminary System Layout $12,554.00
Task No. 3 - Preliminary Cost Evaluation $ 4,241.00
Task No. 4 - Regulatory Impacts $ 2,333.00
Task No. 5 - Final Report $ 6,037.00
Reimbursables $ 750.00
Total Engineering Services
$32,265.00
Additional Services - The fee for Additional Services shall be billed using the Hourly Rate
Schedule contained in Attachment B.
Page 5 of 8
IN WITNESS WHEREOF, the parties have made and executed this Agreement on the respective dates
under each signature. TOWN OF GULF STREAM, through an authorized official of the Town and
Baxter & Woodman, Inc. signing by and through Jason A. Pugsley (Vice President) duly authorized
to execute same.
TOWN OF GULF STREAM:
BAXTER & WOODMAN, Inc.:
Jagoin A. Pugsley, P.E., Vicent
Date: f �/ Date: ///f-7//9
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ATTACHMENT A
Project
2019
2020
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
NTP (November 11, 2019)
Kick -Off Meeting
0
Evaluate Service Area & WW Flows (45 days)
Preliminary System Layout (15 days)
Preliminary Cost Evaluation (15 days)
Regulatory Impacts Review (10 days)
DRAFT Report Submission (30 days)
(3/5/2020)
Town Review (30 days)*
FINAL Report Submission (10 days)
(4/14/2020)
*Includes time to present summary of findings at Town Commision meeting on March 73, zozo
Page 7 of 8
Attachment B
Town of Gulfstream
2019 Wastewater Feasibility Study
Baxter & Woodman Fee Table
Task No.
Task Description
Principal
Engineer
$165
Sr Project
Engineer
$150
Engineer
$112
Labor Classification and Hourly Rates
Sr.
Construction Sr. Eng.
Inspector Tech. Cadd
$110 $110 $95
Clerical
$68
Total
Labor
Sub -
Consultant
Services
1.0
Evaluate Service Area and WW Flows
Meet with Town to discuss area, population & properties
2
2
$524
Conduct field inspection
4
$448
Collect as -built information
2
4
1
1
1 $748
Research property records
2
5
$860
Renew water records
De%elop wastewater flow projections existign & future
2
1
4
4
$748
$598
E%eluate use of grauty vs. low pressure
Task writeup
1
1
3
2
6
6
$1,287
$1,137
Subtotal Task 1
2
14
35
0
0
0
0
$6,350
$0
2.0
Preliminary System Layout and Design
Meet with Delray & Boynton for tie-in requirements
4
4
$1,048
Update system layout Option 1
1 1
6
1
8
$1,582
Update system layout Option 2
1
6
8
$1,582
Calculate pipe size & imerts Option 1
1
8
1
$1,046
Calculate pipe size & inverts Option 2
1
8
$1,046
Update system layout for low pressure system
Calculate design requirements for lift stations
1
1
4
4
8
8
$1,358
$1,661
Check capacity of Delray tie-in location
Check capacity of Boynton tie-in location
2
2
6
6
$972
$972
Task writeup
1
3
6
$1,287
Subtotal Task 2
2
20
62
0
0
24
0
$12,554
$0
3.0
Preliminary Cost Evaluation
Contact Delray & Boynton for seNce fees & rates
1 1
4
1
1
$598
Perform quantity takeoff & cost estimates
Contact %endors & obtain meth/elect equipment costs
4
4
8
8
$1,496
$1,496
Task writeup
Subtotal Task 3
1
1
1
10
3
23
0
0
0
0
$651
$4,241
$0
4.0
Regulatory Impacts
Research and summarize regulatory impacts
2
8
$1,196
Identify FDOT requirements and restrictions
1
2
$374
Task writeup
1
1
4
1 $763
Subtotal Task 4
1
4
14
0
0
0
0
$2,333
$0
5.0
Final Report
Compile DRAFT Report
Retiew meeting with Town Staff
2
4
3
8
3
4
4
$2,478
$786
Prepare and present findings to Town Commission
Prepare and issue FINAL Report
2
1
4
1
6
4
2
4
$1,738
$1,035
Subtotal Task 5
5
12
21
0
0
4
10
$6,037
$0
Labor Subtotal Hours
11
60
155
0
0
28
10
Labor Subtotal Costs
Labor Total Costs
$1,815
$31,515
$9,000
$17,360
$0
$0
$2,660
$680
$31,515
$0
Subconsultant Costs Total
$0
Subconsultant Multiplier
1.1
Subconsultant Total
$0
Reimbursable Expenses
$750
Project Total
$32,265
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