2015-86 elTETRA TECH
October 7, 2015
Mr. James Kinzler, CPM, EA
Assistant City Manager
City of Clermont
685 W. Montrose St.
Clermont, FL 34711
Subject: City of Clermont
Professional Services Proposal for the
Modification of Consumptive Use Permit#2478
Project#: 200-BPClermont
Dear Mr. Kinzler:
Tetra Tech is pleased to furnish this proposal for professional services associated with the above
referenced project. Additional details along with a cost breakdown have been included in the
detailed scope of services attached hereto.
I
Tetra Tech looks forward to serving the City of Clermont on this project. If you should have any
questions, please do not hesitate to contact me at 407-839-3955.
Very truly yours, Approved:
Tetra Tech City of Clermont
Jon D. Fox, P.E. By:
Vice President �
Date: *Mir
Attachments
JDF/ab/Clermont/CUP and LFA/Kinzler 100715
C: Miguel Garcia, PG, Tetra Tech
Sarah Ramlochan, Tetra Tech
Tetra Tech, Inc
201 E Pine Street Suite 1000 Orlando FL 32801
Tel 4C7 839 3955 Fax 407 839 3790 www tetratech corn
ATTACHMENT A
SCOPE OF SERVICES
CITY OF CLERMONT, FLORIDA
MODIFICATION OF CONSUMPTIVE USE PERMIT#2478
I. PROJECT DESCRIPTION
Tetra Tech will provide the necessary hydrological and engineering services required to prepare and submit
an application and supporting documentation to modify the City's St. Johns River Water Management
District (SJRWMD) Consumptive Use Permit (CUP) to include an increase in allocation with reduced
reliance on the Upper Floridan aquifer(UFA)with development of the Lower Floridan aquifer(LFA).
The City of Clermont(City)desires to modify CUP#2478 to include increased allocation from additional
LFA wells and potentially increase the allocation from the existing Greater Hills Wells on the eastern side
of the City's service area. The CUP was issued October 11,2011 and is set to expire on October 11,2031.
The existing permitted allocation is as follows:
2,557.27 million gallons(7.01 mgd average) in 2011,
2,880.01 million gallons(7.89 mgd average) in 2012,
2,887 09 million gallons(7.91 mgd average) in 2013 through 2031.
At the time the CUP was issued,the Central Florida Coordination Area(CFCA)rules were in effect,which
restricted projected UFA withdrawals to the estimated 2013 demands. Therefore, in the existing permit,
the annual allocation is held constant at 2,887.09 million gallons (7.91 MGD) from 2013 through 2031.
The limit on withdrawals was based upon water supply planning conducted by the SJRWMD, SFWMD,
and SWFWMD,which resulted in a determination that the sustainable limit of withdrawals from traditional
groundwater supplies was approximately 650 MGD. Demands beyond 2013 were required to be met by
alternative water supplies(AWS). Since the time of permit issuance,the CFCA rule has expired(at the end
of 2013) and the Central Florida Water Initiative (CFWI) has determined that the sustainable limit of
traditional groundwater withdrawals is 850 MGD. Therefore, the City would like to modify its CUP to
provide increased allocation of water from additional proposed LFA wells and to potentially increase
pumpage from two existing LFA wells. The City has recently received grant funding from the SJRWMD
for the construction and testing of two(2)LFA wells.
The City is conducting water supply planning to identify long-term sources of supply and,at present,using
the LFA as an alternative water supply is an option available to the City. To predict whether the LFA will
be a viable water supply source for future water demands, Tetra Tech conducted a groundwater modeling
analysis of drawdown from mixed UFA and LFA sources. Existing well sites were simulated at existing
and future demand levels and compared to similar simulations using LFA wells or a mix of UFA and LFA
wells. The objective of the modeling work was to identify a possible LFA source area and pumping rates
that would meet future needs while reducing withdrawals from the UFA wells, helping to meet current
Minimum Flows and Levels(MFLs)at North and South Lakes Apshawa and to reduce apparent impacts at
Apopka Spring. The results of the modeling and MFL analysis indicates that there would be a net benefit
to the lake and spring MFLs if the City uses the LFA and reduces withdrawals from the UFA.
Therefore,the City intends to construct and test two(2)new LFA production wells near the Sunburst WTP
to meet a portion of these future demands and to reduce reliance on existing UFA wells at the Sunburst
JDF/ab/Mod of CUP#2478 Scope.doc O TETRA TECH
Tt#BP Clermont/CUP and LFA -1- 100715
WTP. In addition, the City would like to test two(2)existing Greater Hills potable supply wells that are
constructed into the LFA, to determine whether additional yield is available to offset west-side UFA
pumping and, as a result, further reduce adverse drawdown impacts. If successful, data collected during
the LFA exploratory well program will confirm the LFA as an alternative potable supply source and will
support the modification of the City's CUP. If the water quality and hydrogeologic data collected from this
program support additional allocation from the LFA, the City will request a 20-year permit modification
that reduces pumpage from UFA potable supply wells on the west side of the service area and shifts
pumpage to the LFA east side wells.
II. SCOPE OF SERVICES
Tetra Tech will provide:
1 Conduct two (2) meetings with the SJRWMD, one (1) prior to application submittal and
one(1)following the SJRWMD's review of the application package. Also included in the
Scope of Services are two(2)meetings with the City The first will be a kickoff meeting
to discuss and review the project scope and to request and obtain information required for
preparation of the CUP modification application. The second meeting will involve a
review of the CUP modification application prior to submittal
2. Update existing water use demand projections to meet the permit duration requirements.
A table showing the past 10 years of historical water use will be prepared using information
provided by the City. A table showing the projected water use demand from 2016 through
2036 will be prepared using population projection and water demand data from the City
CFWI Water Supply Plan and data already prepared for the South Lake Water Initiative
(SLWI) demand projection study. Since a 20-year permit will be requested during the
modification process,the SLWI demand projection data will need to be updated to extend
the study period to 2036
3 Prepare calculations for partial redistribution of groundwater withdrawals from existing
UFA wells to new LFA wells to meet the projected demands.
4. Perform groundwater modeling of a proposed wellfield operating plan using the projected
future demands to determine potential future drawdown impacts to the UFA, LFA,nearby
MFLs, surficial aquifer water bodies (i.e., lakes and wetlands) and existing legal users
This effort includes modification of the District's version of the CFWI groundwater flow
model to meet permitting and design criteria.
5. Compile information to document the City's water conservation, leak detection,water loss,
reuse,and permit condition compliance activities for inclusion in the CUP application.
6. Prepare and submit the application forms and compile supporting documentation necessary
to modify the City's existing CUP to increase allocation. Our quote assumes permit
application fees will be paid directly by the City. Responses to requests for additional
information and associated meetings will be performed after providing a written cost
estimate to the City and following written approval of a requested change to Tetra
Tech's scope and the City's authorization to proceed.
JDF/ab/Mod of CUP#2478 Scope.doc O TETRATECH
Tt#BP Clermont/CUP and LFA -2- 100715
III. COMPENSATION SUMMARY
The total lump sum compensation for the Scope of Services described in Section II is summarized below-
A. Meetings with the City/SJRWMD $ 8,770.00
B. Historical/Projected Water Use Demand $ 3,970 00
C UFA/LFA Distribution of Raw Water in System $ 5,115 00
D Groundwater Modeling Impact Analysis $ 8,150.00
E. Supporting CUP Documentation $ 6,440.00
F. CUP Application Preparation/Submittal $ 3,405.00
G. RAI Preparation/Submittal* $ TBD
H. Reimbursables $ 358.00
Total Lump Sum Fee $ 36,208.00
*A separate cost estimate will be provided after review of RAI
IV. SCHEDULE
The proposed project schedule for completion of the Scope of Services described in Section II is anticipated
to be as follows:
Calendar Days from
Task Notice to Proceed
A. Kickoff Meeting with City 14
B Pre-application Meeting with City/SJRWMD 30
C. Preparation of Historical/Projected Water Use Demand 60
D. Calculate Distribution of Raw Water in System 365
E. Groundwater Modeling Impact Analysis 365
F. Supporting CUP Documentation 120
G. CUP Application Preparation/Submittal 150
H. RAI Preparation/Submittal 430
JDF/ab/Mod of CUP#2478 Scope doc O TETRA TECH
Tt#BP Clermont/CUP and LFA -3- 100715
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