HomeMy WebLinkAbout2020-116CCCNA2018 WORK ORDER 6
Proposal to Indian River County for the West Regional WWTF Florida Department of
Environmental Protection Operating Permit Renewal
This Work Order Number 6 is entered into as of this 23 day of June , 2020, pursuant to that
certain Continuing Consulting Engineering Services Agreement for Professional Services entered into as of this
17th day of April, 2018 (collectively referred to as the "Agreement"), by and between INDIAN RIVER COUNTY,
a political subdivision of the State of Florida ("COUNTY") and Tetra Tech, Inc. ("Consultant").
The COUNTY has selected the Consultant to perform the professional services set forth on
Exhibit A (Scope of Work), attached to this Work Order and made part hereof by this reference. The
professional services will be performed by the Consultant for the fee schedule set forth in Exhibit B
(l=ee Schedule), attached to this Work Order and made a part hereof by this reference. The Consultant
will perform the professional services within the timeframe more particularly set forth in Exhibit C
(Time Schedule), attached to this Work Order and made a part hereof by this reference all in
accordance with the terms and provisions set forth in the Agreement. Pursuant to paragraph 1.4 of
the Agreement, nothing contained in any Work Order shall conflict with the terms of the Agreement
and the terms of the Agreement shall be deemed to be incorporated in each individual Work Order as
if fully set forth herein.
IN WITNESS WHEREOF, the parties hereto have executed this Work Order as of the date first
written above.
CONSULTANT: BOARD OF COUNTY COMMISSIONERS
OF INDIAN RIVER C TY
By: By: _
Matthew helton Sus Adaut
Print Name:
Title: Project Manager BCC Approved Date: ; Jiine 0
i
Attest: Jeffrey R. Smith,•'Ck.` A rt.Comptroller
DWputy derk
Approved:
(A,—
Jason t. Br wn, County Administrator
Approved as to form and legal sufficiency:
Dylan T. Reingold, County Attorney
EXHIBIT A
OTETRATECH
June 2, 2020
Via email: aweragoda@ircgov.com
Mr. Arjuna Weragoda, P.E.
Indian River County Department of Public Works
1801 27th Street
Vero Beach, FL 32960-3388
Subject: Proposal to Indian River County for the West Regional WWTFP
Florida Department of Environmental Protection Operating Permit Renewal
Tt # 200BP Indian River County
Dear Mr. Weragoda:
Tetra Tech, Inc. (Tetra Tech) is pleased to provide Indian River County Department of Utility Services
(IRCDUS) with this proposal for services to assist in the preparation of the West Regional Wastewater
Treatment Facility (WWTF) Florida Department of Environmental Protection (FDEP) Operating Permit
Renewal Application.
I. BACKGROUND
The IRCDUS owns and operates the West Regional WWTF, a 6.0 million gallons per day (MGD) annual
average daily flow (AADF) capacity domestic WWTF. The WWTF consists of two influent mechanical
bar screens, two grit removal units, two fermentation basins, two 1st anoxic basins, four aeration
basins, two 2nd anoxic basins, two reaeration basins, four secondary clarifiers, four tertiary filters,
and six chlorine contact chambers. The WWTF has sodium hydroxide and alum chemical feed
facilities. Also, the WWTF has a rotary drum thickener and an aerated sludge holding tank for
processing biosolids.
Effluent from the WWTF is disposed through a 4.0 MGD AADF Surface Water Discharge, D-001, from
the created wetland, R-001; a 6.97 MGD AADF slow -rate public access Land Application R-002 which
provides reclaimed water for irrigation public access reuse within the City's service area; and a 0.1
MGD AADF Land Application R-003 rapid infiltration basin (RIBS).
R-001 is a 4.0 MGD-AADF, permitted capacity created wetland treatment/reuse system with 169+
acres (135+ total wetted acres) and consists of an influent deep settling pond, with 9 deep marsh
flow-through cells and 3 shallow marsh cells with a final storage outfall cell. R-001 discharges to the
Lateral D Canal, Class III fresh waters, (WBID# 3153), thence approximately 1.9 miles to the Lateral C
Canal, thence approximately 1.0 miles to the Main Canal Class III fresh waters, (WBID# 3153A), thence
approximately 7.5 miles to the Indian River Lagoon at Vero Beach (Class III marine waters). The
discharge outfall for D-001 is a 24 -inch pipe that is approximately 5 feet in length, from the edge of
the canal's bank, and discharges at a depth of approximately 4 feet.
Tetra Tech, Inc.
TETRA TECH
Mr. Arjuna Weragoda, P.E.
Indian River County Department of Utility Services
June 2, 2020
Page 2
R-002 includes a county -wide public access reuse service area for irrigation of golf courses, residential
developments, business parks, commercial parks, industrial parks, other landscape irrigation, and
industrial uses/cooling water. R-002 also includes a 0.40 MGD-AADF permitted capacity rapid rate
restricted access reuse system that includes seven off-site rapid infiltration basins (RIBS) referenced in
the Central Regional WWTF permit. The RIBS also provide 14 million gallons (MG) of wet weather
storage/disposal during wet weather conditions
The WWTF is operating under current Florida Department of Environmental Protection (FDEP)
wastewater permit number FL0041637. The IRCDUS WEST Regional WWTF FDEP operating permit will
expire on April 11, 2021. In accordance with Rule 62-620.335, Florida Administrative Code (F.A.C.),
permittees who wish to continue to discharge subsequent to the expiration date of their existing
wastewater permit shall submit an application for renewal no later than one -hundred and eighty days
(180) prior to the expiration of their current permit. The permit renewal application and fee must be
received by the FDEP by October 13, 2020.
II. SCOPE OF WORK
IRCDUS has requested that Tetra Tech provide engineering services to prepare the permit renewal
application with necessary supporting documents per the Continuing Contract Agreement for
Engineering Services Dated April 17th, 2018. Tetra Tech's proposal to provide the requested
engineering services is presented in this scope of work. In addition to the permit application Forms 1
and 2A, the IRCDUS West Regional WWTF permit renewal will require the following items in the
permit renewal package per Chapter 62-620, F.A.C., Wastewater Facility Permitting and The Guide to
Wastewater Permitting:
Task 1: Kick -Off Meeting and FDEP Pre -Application Meeting
1. Tetra Tech will prepare for and conduct a kick-off meeting with IRCDUS. Tetra Tech will
prepare and distribute meeting summary to attendees.
2. Tetra Tech will prepare for and conduct a pre -application meeting with IRCDUS and FDEP.
Tetra Tech will prepare and distribute meeting summary to attendees.
Task 2: Historical Data Analysis
1. Evaluate monthly average daily flows, three-month average daily flows and annual average
daily flows, permitted capacity and flow trends.
2. Evaluate seasonal variations
3. Characterize the flow and loadings currently being treated at the plant based on the most
recent 3 years of data.
TETRA TECH
Mr. Arjuna Weragoda, P.E.
Indian River County Department of Utility Services
June 2, 2020
Page 3
Task 3: Operation and Maintenance Performance Report
1. Tetra Tech will prepare an operation and maintenance performance report (OMPR) pursuant
to Chapter 62-600, F.A.C. This task includes the following:
a. Updating descriptions of each operation/process prepared in the previous OMPR.
b. Prepare location map for WWTF, wetlands, outfalls, and RIBS.
C. Prepare site plan showing the current operations and unit processes, and process
flow diagram showing the current status and current capacity of the facility.
d. Physical condition assessment including site visit with WWTF operations staff to
perform visual observation of the physical status of the WWTF, completing the FDEP
forms summarizing the physical conditions, individual components, systems, and
processes, and disposal systems, document any evidence of hydraulic or organic
overloading and document the general condition of each unit operation/process.
e. Treatment efficiency analysis and summarize performance trends.
f. Summarize O&M problems related to physical condition, treatment efficiency,
performance trends and O&M program and develop schedule for corrective actions.
2. Tetra Tech will meet with IRCDUS personnel to review findings. Tetra Tech will prepare and
distribute meeting summary to attendees.
3. Tetra Tech will finalize report to be submitted to FDEP.
Task 4: Prepare FDEP Permit Application Forms and compile supplemental data.
1. Tetra Tech will submit a draft of the permit applications (FDEP Application Forms 1 and 2A) to
IRCDUS for review and IRCDUS comments will be incorporated into the final version. Upon
receipt of the signed permit application from IRCDUS, Tetra Tech will submit the permit
application, CAR, OMPR, and supporting documentation. FDEP permit fee ($5,000) in
accordance with Rule 62-4.050(b), F.A.C. has been included with this Task.
2. Tetra Tech will compile the following information, provided by IRCDUS to be included with the
permit application
a. Reclaimed Water or Effluent Analysis Report for a sample collected within the last 12
months.
b. Annual Reuse Report
TETRATECH
Mr. Arjuna Weragoda, P.E.
Indian River County Department of Utility Services
June 2, 2020
Page 4
c. Pathogen Monitoring Report for sample collected within the last two years.
d. Updated Operating Protocol
e. Flow meter calibration reports
f. List of reclaimed water users and copies of the reuse agreements, if needed
g. Annual Wetlands Report
h. Summary of any modifications that occurred during the current permit period, if
applicable.
i. Summary of any ongoing plant modifications, for which permits were issued for and
anticipated completion dates, if applicable.
Task 5: FDEP RAls
1. Tetra Tech will prepare up to two (2) responses to requests for additional information (RAls)
for the FDEP wastewater permit.
Task 6A: Process Evaluation Due to High Organic Load (Additional Services)
1. In accordance with Section V.B of the current permit, it was noted that the organic load to the
facility exceeds the design load. Per the current permit, at the time of renewal detailed
calculations to evaluate the capacity of the WWTF based on the high organic load are
required. It is believed that this requirement was a result of high loadings that were observed
at the WWTF at the time of the previous renewal. Subsequently, IRCDUS has mitigated the
source of the high loadings. The influent loadings are now consistent with the original plant
design. Therefore, at the FDEP Pre -Application meeting IRCDUS will request that this
requirement be removed upon demonstration that the loadings to the facilities are consistent
with the original design. If FDEP requires that this permit requirement be met as part of the
renewal, Tetra Tech will prepare detailed calculations for current loadings for the existing
design of the WWTF.
2. Tetra Tech will summarize the finding in a draft technical memorandum.
3. Tetra Tech will meet with IRCDUS personnel to review findings. Tetra Tech will prepare and
distribute meeting summary to attendees. It is assumed that this meeting will be a
teleconference using Microsoft teams or similar app.
4. Tetra Tech will finalize the technical memorandum in the Capacity Analysis Report (Task 9A).
TETRATECH
Mr. Arjuna Weragoda, P.E.
Indian River County Department of Utility Services
June 2, 2020
Page 5
Task 7A: Capacity Analysis Report (Additional Services)
1. Per Chapter 62-600, F.A.C. in accordance with Section V.B of the current permit. Although the
WWTF three-month average daily flow has not exceeded 50% of the permitted capacity, due
to high organic load that exceeds the design for the WWTF an updated capacity analysis
report is required with the permit application. It is believed that this requirement was a result
of high loadings that were observed at the WWTF at the time of the previous renewal.
Subsequently, IRCDUS has mitigated the source of the high loadings. The influent loadings are
now consistent with the original plant design. Therefore, at the FDEP Pre -Application meeting
IRCDUS will request that this requirement be removed upon demonstration that the loadings
to the facilities are consistent with the original design. If FDEP requires that this permit
requirement be met as part of the renewal, Tetra Tech will prepare a Capacity Analysis
Report.
2. Develop flow projections for the next 10 -years based on historical wastewater flows and
population projections provided by IRCDUS.
3. Tetra Tech will summarize the finding in a draft technical memorandum.
4. Tetra Tech will meet with IRCDUS personnel to review findings. Tetra Tech will prepare and
distribute meeting summary to attendees.
5. Tetra Tech will finalize the technical memorandum in the Capacity Analysis Report.
5. Tetra Tech will prepare a draft Capacity Analysis Report (CAR) Tetra Tech will meet with
IRCDUS personnel to review findings. Tetra Tech will prepare and distribute meeting summary
to attendees. It is assumed that if required, the Capacity Analysis Report review meeting will
occur at the same time as the Operations Maintenance and Performance Report review
meeting.
6. Tetra Tech will finalize report to be submitted to FDEP.
Task 8A: Biosolids Storage Plan (Additional Services)
1. IRCDUS does not currently have a Facility Biosolids Storage Plan. IRCDUS West Regional
WWTF transfers its biosolids to Indian River County Biosolids Dewatering Facility and has not
been required to submit one to FDEP in the past. FDEP has required getting an approved
Facility Biosolids Plan on recent permit renewals for other facilities. If required by FDEP, Tetra
Tech will assist IRCDUS develop a Facilities Biosolids Plan which will include a summary of the
biosolids unit processes, disposal, and process back-up provisions.
TETRATECH
Mr. Arjuna Weragoda, P.E.
Indian River County Department of Utility Services
June 2, 2020
Page 6
III. INFORMATION AND SERVICES TO BE PROVIDED BY IRCDUS
3. Provide requested data including permit application supplemental data noted above and all
WWTF operating data, service area description and map, O&M Manual and current
population projections.
4. Record drawings and WWTF design reports.
5. Provide access to treatment facilities sites.
IV. SERVICES NOT INCLUDED
The following items are not anticipated to be required for the permit renewal and are not
included in the scope of services. If needed they can be provided under a separate authorization.
1. An updated Agricultural Use Plan or Dedicated Site Plan as described in Chapter 62-640, F.A.0
is required for a facility that uses land application as a method of residuals disposal - IRCDUS
West Regional WWTF transfers its biosolids to Indian River County Biosolids Dewatering
Facility and the receiving facility is responsible for the biosolids disposal: therefore not
included in this scope.
2. The collection system will not be evaluated as IRCDUS is not aware of treatment plant
problems resulting from the operation of collection and transmission facilities (such as
excessive infiltration/inflow, septic wastewater, introduction of toxic substances, or lack of
controls on industrial wastewater discharges to the collection system).
V. PROJECT SCHEDULE
The approximate duration noted for each task is based on our current understanding and best
estimates of time required to perform the basic services.
TETRATECH
Mr. Arjuna Weragoda, P.E.
Indian River County Department of Utility Services
June 2, 2020
Page 7
Task
Phase
Phase
Notice to Proceed (NTP)
Completion Date
June 15, 2020
1
Project Kick -Off Meeting and FDEP Pre -Application
Meeting
July 10, 2020
2
Historical Data Analysis
June 26, 2020
3
OMPR
October 1, 2020
4
Application Package to FDEP
October 13, 2020
5
Respond up to 2 RAls
TBD
6A
Process Evaluation Due to High Organic Load
(Additional Services)
October 1, 2020
7A
CAR (Additional Services)
I
October 1, 2020
8A
Biosolids Storage Plan (Additional Services)
October 1, 2020
VI. COMPENSATION
The proposed total lump sum compensation for the Scope of Services described in Tasks 1 thru 5 is
$44,608.94. Tasks 6A, 7A, and 8A are additional services that may or may not be included. These
services will be provided, as required by FDEP and if requested by IRCDUS, as part of the permit
renewal. The proposed total lump sum compensation for the Scope of Services, including the
additional services, Tasks 6A, 7A, and 8A described herein is $79,466.24. Attachment A presents a
detailed breakdown of the estimated compensation for the Scope of Services.
Task
1
Phase
Compensation
$ 4,974.97
Project Kick -Off Meeting and FDEP Pre -Application
Meeting
2
Historical Data Analysis
$ 1,623.56
3
OMPR
$23,408.80
4
Application Package to FDEP
$ 8,291.27
5
Respond up to 2 RAls
$ 6,310.34
Subtotal Lump Sum Tasks 1 thru 5
$44,608.94
6A Process Evaluation Due to High Organic Load
(Additional Services)
$16,418.89
7A CAR (additional Services)
$14,837.90
8A I Biosolids Storage Plan (Additional Services)
$ 3,600.51
Subtotal Lump Sum Tasks 6A thru 8A
$34,857.30
Total Lump Sum
$79,466.24
TETRATECH
Mr. Arjuna Weragoda, P.E.
Indian River County Department of Utility Services
June 2, 2020
Page 8
Tetra Tech looks forward to working with you on this project. We are available to discuss our
approach with you in detail at your convenience. Should you have any questions regarding this
proposal, please contact me at (321) 637-8099 or Brenda Keenan at (407) 480-3970.
Sincerely,
/4r* lf=
Matthew D. Shelton
Project Manager
JDF/ab/WRWWTFP FDEP Permit Renewal/Permit Renewal Proposal_052620.doc
C: Brian Watson, P.E., Tetra Tech
Jon Fox, P.E., Tetra Tech
Brenda Keenan, P.E., Tetra Tech