HomeMy WebLinkAboutTen-Year Water Supply Facilities Work Plan July 2008Village Of North Palm Beach
Ten -Year Water Supply Facilities Work Plan
July 2008
Table of Contents
Section Page
A. Introduction 1
B. Data and Analysis 2
1. Raw Water Source 4
2. Population Projections 5
3. Public Water Supply Demand Projections 6
4. Non -Public Water Supply 7
5. Conservation Practices 7
6. Availability of Water Supply 8
7. Water Supply Project Identification and Selection 10
C. Comprehensive Plan Update Requirements 10
List of Maps
Map Page
1. Seacoast Utility Authority Service Area 3
List of Tables
Table Page
1. Seacoast Current and Projected Water Supply 4
2. Seacoast Current and Projected Water Supply by Source 4
3. Population Projections 6
4. North Palm Beach Projected Finished Water Demand 7
5. North Palm Beach Reclaimed Water Contracts 9
6. Seacoast Interconnections 10
7. Seacoast Water Supply Projects Summary 11
North Palm Beach Potable Water Supply Facilities Work Plan
A. Introduction
The South Florida Water Management District (SFWMD) adopted the Lower East
Coast Regional Water Supply Plan update on February 15, 2007. Per Section
163.3177(c), Florida Statutes, local governments and water suppliers must adopt
a related Water Supply Facilities Work Plan (WSFWP) and supportive
amendments to their comprehensive plans by August 15, 2008.
Municipalities and local suppliers are required to coordinate with SFWMD in the
preparation of their WSFWP in order to identify needed facilities for at least a 10-
year planning period, confirming that: (1) adequate water supply is available,
considering the regional water supply plan; and (2) infrastructure plans
necessary to serve projected need have been prepared.
Specifically, WSFWP comprehensive plan amendments must:
• Demonstrate that the local government has coordinated with the
appropriate water management district's regional water supply plan.
• Ensure that the local government's future land use plan is based upon the
availability of adequate water supplies and public facilities and services.
• Ensure that adequate water supplies and facilities are available to serve
new development no later than the date on which the local government
issues a certificate of occupancy and consult with the applicable water
supplier prior to approving a building permit to determine whether
adequate water supplies will be available to serve new development by
the anticipated issuance date of the certificate of occupancy.
• Revise the five-year schedule of capital improvements to include any
water supply, reuse and conservation projects and programs to be
implemented during the five-year period.
• Revise the Conservation Element to assess projected water needs and
sources for at least a ten-year planning period, considering the
appropriate regional water supply plan.
• To maintain internal consistency, revise the Intergovernmental
Coordination Element to ensure coordination of the comprehensive plan
with the regional water supply plan and regional water supply authorities.
• Clearly define responsibilities for planning, financing, construction and/or
operation of the water supply facilities by all entities providing service
within its jurisdiction, regardless of ownership responsibility for the
individual facilities, including: (1) water supply source, service areas,
existing demands and future projects; (2) treatment types and losses; (3)
distribution facilities; and (4) bulk sales agreements.
Seacoast has coordinated with government jurisdictions in its service area by
providing key data related to population projections and projected potable water
demands. As a result, the North Palm Beach WSFWP is prepared using the best
available data. The following paragraphs address the Village's WSFWP
requirements.
B. Data and Analysis
North Palm Beach does not own or operate its own potable water supply system.
Rather, potable water facilities and services are provided by Seacoast Utility
Authority (Seacoast). The corporate limits of the Village, within the Seacoast
service area, is illustrated on Map 1.
All responsibilities for the withdrawal, treatment and distribution of potable water
to the residents and businesses in the Village are assumed by Seacoast,
including the direct billing of customers. Related to the approval of development
orders, Seacoast requires developers to upgrade the capacity of existing
systems, and/or build new systems to meet their needs. Upon completion,
Seacoast assumes ownership, operation and maintenance responsibilities of all
related systems.
Seacoast currently operates two fully interconnected lime -softening water
treatment facilities (Richard Road — 7.5 MGD capacity and Hood Road — 23.0
MGD) with a combined finished water treatment peak -day capacity of 30,5 MGD.
According to the report entitled "Preliminary Design Evaluation for Modifications
to the Hood Road and Richard Road Water Treatment Plants" (12/05), the
current treatment facilities have the capacity to serve buildout of that portion of
the service area located east of the C-18 Canal, including the Village of North
Palm Beach.
Future plant expansion may be necessary depending upon development
approvals to the west of the C-1 8 Canal,
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Seacoast's Board, consisting of representatives of those political jurisdictions
receiving service, has approved an $88 million five-year capital improvements
program to replace the lime -softening capacity with a single centralized 30.5
MGD membrane treatment plant. The proposed facility will include 26.0 MGD of
nanofiltration capacity to treat surficial water sources and 4.5 MGD of low
pressure reverse osmosis capacity to treat brackish water from the Floridan
Aquifer System (FAS).
1. Raw Water Source
According to the Lower East Coast Water Supply Plan 2005-2006 Update (2005-
2006 Update), Seacoast currently (2005) withdraws an average of 18.53 MGD of
raw water from the Surficial Aquifer System (SAS). Current Seacoast plans will
result in the use of both the Surficial and Floridan Aquifer Systems in the future.
Projections of raw water supply and finished water demand for Seacoast from the
2005-2006 Update, are presented in Table 1.
Projections of finished water demand, by expected supply component are
presented in Table 2. Based upon the projections in Table 2, future withdrawal
from the Biscayne/Surficial Aquifer should not exceed current levels.
TABLE 1
Seacoast Current and Projected Water Supply
Year Raw Water Withdrawal (MGD) Finished Water Demand (MGD)
2005 19.12 18.53
2010 20.68 20.14
2015 23.76 22.46
2020 26.22 24.30
2025 28.31 25.87
* - Demand under average conditions.
Source: Lower East Coast Water Supply Plan, 2005-2006 Update.
TABLE 2
Seacoast Current and Projected Water Supply By Source
Year Biscayne/Surficial Aquifer (MGD) Floridan Aquifer(MGD) Total (MGD)
2005 18.53 0.00 18.53
2015 18.53 3.90 22.46
2025 18.53 7.30 25.87
Source: Lower East Coast Water Supply Plan, 2005-2006 Uodate.
The current Seacoast Public Water Supply consumptive use permit (CUP 50-
00365-W) was renewed by the South Florida Water Management District
(SFWMD) in April 2000 and modified in February 2003 for a 5-year period at an
average -day allocation of 19.3 MGD and a peak -day allocation of 26.8 MGD.
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The pending permit renewal seeks an average -day surficial aquifer allocation of
22.2 MGD. It is anticipated that the permit will be renewed during 2008 with a
five-year duration to 2013.
The SFWMD staff report related to the current CUP establishes the projected
2020 population of the service area at 146,161 residents and that of North Palm
Beach at 14,484 residents. However, more recent projections have resulted in
lower figures. The Palm Beach County 20 Year Water Supply Work Plan (4/08)
projects the 2020 Seacoast service area at 105,945 residents and Seacoast
(3/08) has projected the 2020 service area population at 109,579 residents.
Further, Seacoast has projected the Village 2020 population at 13,731 residents.
Raw water is presently drawn from four surficial aquifer wellfields (Hood Road,
North Palm Beach, Burma Road and Palm Beach Gardens), pursuant to the
current CUP. Each of the wellfields has permitted average and maximum daily
withdrawal rates established by CUP conditions.
Each wellfield has protection zones mapped by the Palm Beach County
Department of Environmental Resources Management (DERM According to the
current CUP, all wellfields are protected by the Palm Beach County Wellfield
Protection Ordinance. Zones of protection are developed and zone requirements
enforced by the Palrn Beach County Department of Environmental Resources
Management.
The CUP further states that the potential for induced movement of contaminants
from known sources of pollution to occur as a result of the withdrawal of the
recommended allocation is considered minimal.
2. Population Projections
Population projections for the Village and the Seacoast service area were
supplied by Seacoast in a letter dated March 10, 2008. Projections for the
Seacoast service area were also prepared by the Palm Beach County Planning
Division during the preparation of the Palm Beach County 20 Year Water SLIM*
Work Plan. Projections for the Village and the Seacoast service area, using
Seacoast data, are presented in Table 3.
Village population projections were most recently updated in the 2006 Evaluation
and Appraisal Report (EAR). Methodology used in the EAR projections
determined that buildout of the Village would occur by 2010 and result in a
population of 13,091 residents, or 102% of the number projected by Seacoast
(Ref: Table 3).
Since the preparation of the EAR, the housing market has declined resulting in
the conclusion that buildout will not occur by 2010. Further, the Village is
considering (not adopted) additional Future Land Use Map amendments that
may increase the buildout population estimate and extend the buildout date. As
a result, the Seacoast projections, as presented in Table 3, appear reasonable
and will be used for the purposes of projecting future Village water supply needs.
TABLE 3
Population Projections
Resident Population Projections* North Palm Beach Share
Year Seacoast Service Area North Palm Beach of Service Area
2006 90,084 12,562 13.9%
2010 99,995 12,879 12.9%
2015 109,579 13,341 12.2%
2020 109,893 13,731 12.5%
2025 112,495 13,731 12.2%
* - Seacoast data; March 2008.
Seacoast service area projections are slightly higher than those prepared by
Palm Beach County and used in the Palm Beach County 20-Year Water Supply
Plan (4/08). A comparison of Seacoast Service Area Projections, per Table 5-1
of that document with those presented in Table 3 above indicate that Seacoast's
projections (109,893 residents) are 3.7% higher than those prepared by Palm
Beach County (i.e. 105,945 residents for the Seacoast service area) for the year
2020. Due to the slight difference and in order to maintain consistency with the
Village's service provider, projections prepared by Seacoast are used herein.
3. Public Water Supply Demand Projections
The Village's adopted potable water level -of -service (LOS) standards are as
follows:
Average Day Generation : Residential — 99 gallons per capita per day;
and Non -Residential —1,874 gallons/acre/day.
Maximum Day Generation : Residential — 147 gallons per capita per
day; and Non -Residential — 2,782 gallons/acre/day.
For planning purposes, Seacoast currently uses an average day generation rate
of 191 gallons per capita per day (gpcd), consistent with the current system -wide
usage (i.e. CUP 50-00365-W)). Seacoast does not employ a non-residential
generation rate; rather, all consumption (i.e. for planning purposes) is expressed
on a per capita basis. Therefore, for the purposes of this analysis, the Seacoast
generation rate (191 gpcd) is used to project Village water demands.
Projections of finished water demand for North Palm Beach are presented in
Table 4. Projections, supplied by Seacoast in March 2008, include a "seasonal
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adjustment" to account for the impacts upon average daily demand of occasional
residents.
Current (2006) finished potable water demand is estimated at 2.52 MGD (i.e.
resident + "seasonal adjustment" population of 13,190 residents x 191 gallons
per capita per day), representing approximately 14% of the total within the
Seacoast service area.
It is projected that the Village's finished potable water demand, using population
projections (i.e. resident + "seasonal adjustment" population of 14,418 residents
per Table 4) will attain a level of 2.75 MGD by 2025, or approximately 13% of the
total demand within the Seacoast service area.
TABLE 4
North Palm Beach Projected Finished Water Demand
North Palm Beach Population Projections 1 Potable Water Demand
Year Residents* Seasonal Adjustment * (MGD)**
2006 12,562 628 2.52
2010 12,879 644 2.58
2015 13,341 667 2.68
2020 13,731 687 1 2.75
2025 13,731 687 I 2.75
- Seacoast data; March 2008.
** - Residents + Seasonal Adiustment x 191 aged.
North Palm Beach is willing to cooperate with Seacoast and its participating local
governments in developing residential and non-residential LOS standards to
better estimate and project potable water use and needs throughout the entire
service area.
4. Non -Public Water Supply
The Lower East Coast Water Supply Plan 2005-2006 Update identifies several
classifications of water supply, including: Public Water Supply; Domestic Self -
Supply; Agricultural; Commercial and Industrial; Thermoelectric Power
Generation; and Recreational.
All customers supplied by Seacoast are included in the Public Water Supply
Category, which includes a majority of the land uses in North Palm Beach. The
exceptions are the North Palm Beach Country Club and the
Village of North Palm Beach (public grounds irrigation). Both of these are
classified as Recreational Supply.
• The Village has a permit (50-03878-W) for the withdrawal of a maximum
of 0.0379 MGD from the Surficial Aquifer at the North Palm Beach
Community Center for the purpose of landscape irrigation. The permit,
issued in July 2005, will expire in August 2017.
• The Village has a pending permit (50-00084-W) renewal for the withdrawal
of a maximum of 181.28 million gallons per year from the Surficial Aquifer
at the North Palm Beach Country Club for the purpose of golf course
irrigation.
In addition, there are several public and private entities in the Village that have
procured consumptive use permits to withdraw raw water from the Surficial
Aquifer for the purpose of irrigation. Among the largest of the users, including
their maximum annual withdrawal rates, are the following: Benjamin School
(9.11 million gallons); Landings East Condominium (11.83 million gallons); and
Passionist Monastery (15.7 million gallons).
5. Conservation Practices
Seacoast has included an extensive conservation program as part of its CUP,
including the following components:
• Permanent Irrigation Ordinance - Palm Beach County adopted the Water
and irrigation Conservation ordinance on January 19, 1993. This
ordinance, which limits lawn irrigation to the hours or 5PM to 9AM, is in
effect countywide unless municipalities adopt a landscaping ordinance of
their own.
• Xeriscape Ordinance - Section 7.3.1 of the Palm Beach County Land
Development Code requires all new landscape plans to promote water
conservation by achieving a minimum score on a water conservation point
scale.
• Ultra -Low Volume Plumbing Fixtures - All five participating governments
have adopted the Standard Plumbing Code, 1994 Edition, which provides
for maximum flows of volumes for various plumbing fixtures in all new
construction.
• Water Conservation Rate Structure - On June 1, 1994, Seacoast
implemented a rate structure that incorporated inclining block commodity
rates. Seacoast has indicated that the rate structure has been successful
in encouraging water conservation.
• Leak Detection - Seacoast field personnel are trained to identify leaks and
has a sonic leak detector. In addition, all accounts are metered and
included in a change out program which tests all large meters annually for
accuracy and replaces small meters on either a "fixed service life" or
"maximum mileage" basis.
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• Rain Sensor Devices — Currently, all five member governments have code
requirements for the installation of rain sensor overrides for new lawn
irrigation systems.
• Water Conservation Education Program — Seacoast has an extensive
public conservation education program and provides conservation -related
pamphlets in its customer lobby.
• Reclaimed Water — Seacoast has been providing wastewater effluent for
irrigation purposes since 1978. At present, Seacoast's entire average
daily wastewater flow is committed to active on-line reclaimed water
consumers. An inventory of contracts for reclaimed water in North Palm
Beach is presented in Table 5.
TABLE 5
North Palm Beach Reclaimed Water Contracts
Name Classification* Allocation (IVIGD)
Old Port Cove A — Guaranteed 0.200
Gemini Condominium B- Non -Guaranteed 0.034
Royale Harbor Condominium B- Non -Guaranteed 0.040
Waterway Terrace Condominium B- Non -Guaranteed 0.031
Seamark Condominium B- Non -Guaranteed 0.020
Village of North Paim Beach B- Non -Guaranteed 0.300
Total 0.625
* - According to Seacoast, Class B contracts have always received their allocations
Source: Seacoast Utility Authority: 12/31/07: North Palm Beach: 7/11/08.
6. Availability of Water Supply
In September 2006, Seacoast entered into a Service Area Agreement (R2005-
1769) with Palm Beach County defining the service area boundary between the
two providers. Delineation of the service area boundary was intended to
eliminate or minimize duplication of facilities, provide for the orderly growth,
expansion and extension of respective water, wastewater and reclaimed water
utility systems. The Agreement benefited existing and future Seacoast
customers by ensuring the most efficient delivery of public utility services.
The pending Seacoast CUP permit renewal, expected to be approved by the
South Florida Water Management District during 2008, will insure adequate
water supply through 2013. Further, by implementing the improvements
identified in the Lower East Coast Water Supply Plan, 2005-2006 Update (Ref:
Table 7), Seacoast will insure adequate water supply for its service area through
2025, provided that there are no unforeseen impacts upon existing and planned
supplies.
The Seacoast system is interconnected with the Jupiter and Riviera Beach
systems in the event of an emergency shortage. Interconnections are detailed in
Table 6. In addition, in June 2006, a Utility Bulk Service Agreement (R2006-
0687) was executed with Palm Beach County to provide Seacoast with up to 5
MGD of bulk potable water and bulk wastewater service during an initial term of
five years. Seacoast has the option to extend the Bulk Agreement for a period of
25 years at the same capacity level. The Bulk Agreement will provide Seacoast
with the supply necessary to meet future demand in that portion of its service
area located west of the C-17 Canal. According to Seacoast, water supply in this
area will not be necessary until 2009. The Bulk Agreement requires that the
County install necessary potable water pipeline improvements to the area. By
entering into the Agreement, Seacoast customers will benefit from the
competitive prices of bulk water.
Entity
Jupiter
Jupiter
Riviera Beach
TABLE 6
Seacoast Interconnections
Size (inches)
16
10
12
Capacity (gpm)
4,000
2,500
3,500
Location
SR 811 and Donald Ross Rd.
US 1 and Ocean Drive
Military Trail and Leo Lane
Based on the data and analysis presented in Sections 1-5, it is concluded that
the Village's future land use mix is feasible, from the perspective of projected
potable water supply needs during the ensuing five and ten-year periods. As
stated above, the report entitled "Preliminary Design Evaluation for Modifications
to the Hood Road and Richard Road Water Treatment Plants" (12/05), concludes
that current treatment facilities have the capacity to serve buildout of that portion
of the service area located east of the C-18 Canal, including North Palm Beach.
7. Water Supply Project Identification and Selection
The 2005-2006 Update recommends two major capital improvements projects for
the Seacoast water supply system.
• Construction of a 4.0 MGD reverse osmosis (RO) water treatment plant at
the Hood Road water treatment project. The SFWMD further proposes to
increase this project to yield at least 8.0 MGD of finished water.
• Conversion of the 30.0 MGD lime -softening treatment capacity at the
Hood Road water treatment project to 26.0 MGD of nanofiltration
treatment capacity. Losses in efficiency from the conversion to
nanofiltration would be met by the expanded Floridan wells in the first
project.
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Recommended projects for consideration by Seacoast are summarized in Table
7. Neither of the projects are the responsibility of North Paim Beach and
therefore are not included in the Village's Five -Year Schedule of Improvements.
C. Comprehensive Plan Update Requirements
During the preparation of the 2006 Evaluation and Appraisal Report (EAR), a
review of statutory (Florida Statutes) and Code (Florida Administrative Code)
amendments affecting the North Palm Beach Comprehensive Plan was
completed. The analysis, including recommendations for Comprehensive Plan
amendments is contained in Appendices 3 and 4 of the EAR. The analysis in the
EAR directed Comprehensive Plan amendments to address potable water supply
in several elements.
TABLE 7 — Seacoast Water Supply Projects Summary
Total Design Ca 3acity (MGD)
Alternative Capital Costs
Project Description Source ($million) 2010 2015 2020 2025
Hood Road WTP RO Brackish 59.0 1.60 3.90 5.80 7.30
System — Four Floridan
Wells and Two RO Reject
Wells
Seacoast 4.0 MGD Reclaimed 10.3 4.00 4.00 4.00 4.00
Reclaimed Water
Treatment Expansion —
2006 Funded Project*
*- Project was completed in 2006.
Source: Lower East Coast Water Supply Plan, 2005-2006 Update.
EAR -directed Comprehensive Plan amendments regarding water supply
planning are tracked and documented in the 2008 Support Documentation, the
data and analysis for current ERA -based Comprehensive Plan amendments,
including Water Supply Facilities Plan requirements. A summary of the
Comprehensive Plan amendments is as follows:
Future Land Use Element (Chapter 3.0): Add Policy 2.6 to read as follows:
Policy 2.6: At the time of each required Evaluation and Appraisal Report,
the Village shall update the Water Supply Facilities Plan to determine
whether or not adequate water supply is available to meet projected needs
of the ensuing 10-year period.
Infrastructure Element (Chapter 6.0): Incorporate the Village's Water Supply
Facilities Plan, by reference, within Section 6.1. Also, add or revise the following:
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Add Goal 6.2.6: Coordinate with Seacoast and Palm Beach County in
the preparation of their Ten -Year Water Supply Work Plans, consistent
with the directives of the Lower East Coast Water Supply Plan.
Revise Policy 1.1: Public facility level -of -service standards as displayed
on Table 6-1 are hereby adopted, and shall be used as the basis for
estimating the availability of capacity and demand generated by a
proposed development. However, potable water level -of -service (LOS)
standards used for Water Supply Facilities Planning purposes shall be
consistent with those used by Seacoast Utility Authority. Further,
coordinate with Seacoast Utility Authority in developing appropriate
residential and non-residential LOS categories should they become
necessary to better project future water supply needs.
Add Policy 5.6: At the time of each reauired Evaluation and Appraisal
Report, the Village shall incorporate necessary Ten -Year Water Supply
Work Plan directives enacted by its water supplier and the regional water
supply plan.
Conservation Element (Chapter 8.0): Add the following objective and policies;
Add OBJECTIVE 8: Participate in the formulation and implementation of
water supply conservation programs developed by Seacoast Utility
Authority.
Policy 8.1: Coordinate with Seacoast Utility Authority to implement
potable water conservation programs established as part of its Ten -Year
Water Supply Facilities Work Plan and Consumptive Use Permit.
Policy 8.2: Cooperate with Seacoast Utility Authority in the development
and implementation of water reuse programs, to the extent that they may.
apply to North Palm Beach.
Intergovernmental Element (Chapter 10.0): Add the following policies:
Add Policy 1.15: Require that all applicants for development approval
procure written confirmation of availability of potable water service prior to
the issuance of a building permit.
Add Policy 4.5: At the time of each required Evaluation and Appraisal
Report confirm the availability of potable water service, consistent with the
regional water supply plan and Ten -Year Water Supply Facility Plans of
Seacoast Utility Authority and Palm Beach County.
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Capital Improvements Element (Chapter 11.0): Revise the following policy:
Revise Policy 7.1.1: A development order or permit shall be issued subject to
the condition that, at the time of the issuance of a certificate of occupancy or its
functional equivalent, the necessary facilities and services are in place and
available to serve the new development or redevelopment. Further, prior to the
approval of a building permit or its functional equivalent, the Village shall consult
with the applicable supplier to determine whether adequate water supplies will be
available to serve a new development no later than the anticipated date of
issuance of a certificate of occupancy.
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