HomeMy WebLinkAboutDocumentation_Environmental Advisory Committee_Tab 04_7/14/2021Agenda Item #4.
j,
Environmental Advisory Committee (EAC)
STAFF MEMO-'
Meeting: Environmental Advisory Committee (EAC) - Jul 14 2021
Staff Contact: Thomas Bradford, EAC Chair Department: Environmental Advisory
Committee
Modification of Draft Recommendations to the EAC on the Utilities Element, Sub Element Stormwater
Management, of the Comprehensive Plan for Consideration of the Village Council and Staff Per
Request of EAC Members
SUMMARY:
This document and any attachments may be reproduced upon request in an alternative format by completing
our Accessibility Feedback Form, sending an e-mail to the Village Clerk or calling 561-768-0443.
Backup Memo Utilities Ele Sub Ele Stormwater Mang. 071421
Page 22 of 41
Agenda Item #4.
Memo
To: Environmental Advisory Committee Members
From: Thomas G. Bradford, Chair, EAC r47
cc: NA
Date: July 7, 2021
Re: Additions to the Draft Recommendations to the EAC on the Utilities Element,
Stormwater Management Sub -Element, of the VOT Comprehensive Plan as
Requested by the EAC for Consideration of the Village Council and Staff
VOT Resolution No. 24-19, which created the EAC, requires the EAC "...to within the bounds of
the Village's Comprehensive Development Plan, develop recommendations for goals, objectives
and policies relative to sustainingand nd improving the environment of the Village of Tequesta." To
this end, the EAC is reviewing the Utilities Element of the VOT Comprehensive Plan. The Utilities
Element contains four sub elements entitled Sanitary Sewer, Solid Waste, Potable Water and
Stormwater Management. In order to keep the review process manageable only one or two of the
sub elements will be reviewed at each EAC meeting. This memo addresses the Stormwater
Management Sub -Element.
At the EAC meeting on June 9, 2021, the EAC requested the following be added where applicable
to the EAC comments on Stormwater Management:
o Strengthen stormwater provisions by upgrading subdivision stormwater regulations,
implementation of best practices, and use of state-of-the-art infrastructure.
o Preservation of Village owned lands and open space for obvious benefits.
Items highlighted in yellow are those places amended to include the changes wanted by the EAC.
Page 23 of 41
Agenda Item #4.
You are encouraged to review the Element or sub -element and propose where you see
environmental issues requiring EAC review potentially overlooked in this memorandum or make
suggestions on how to modify or add to the comments and options provided herein to consider for
recommendation to the Village Council and staff. The link to the VOT Comprehensive Plan is as
follows:
ft://teguesta.org/84/Communfty-Develol2ment
-Development
Pertinent sections pertaining to environmental issues within the Utilities Element, Sub Element
Stormwater Management of the VOT Comprehensive Plan and my comments are as follows:
UTILITES ELEMENT, POTABLE WATER SUBELEMENT
Goal 1.0.0. Economical, sustainable, efficient and effective networks of stormwater drainage
facilities and services.
TGB Comment: Sustainable stormwater management is an alternative to the traditional piped only
approach. It promotes onsite collection and conveyance of stormwater from roofs, parking lots,
streets, and other surfaces to infiltrate into the ground or collect for reuse, often reducing the need
for costly underground structures. The strategy recognizes the relationship between the natural
environment and the built environment, and manages them as integrated components of a
watershed. The approach relies on things like vegetated natural systems to slow and filter the water.
Vegetation enhances both interception and evaporation of rainfall through its leaves. Vegetation
reduces stormwater runoff volume as well as pollutants in urban runoff.
Studies show that natural landscaping at a residential development can reduce annual stormwater
runoff volume by as much as 65%. Natural drainage and native landscaping areas in residential
developments can remove up to 80% of the suspended solids and heavy metals, and up to 70% of
nutrients like phosphorous and nitrogen from stormwater runoff.I Sustainable stormwater
management uses both structural devices such as rain barrels, cisterns, and planters, and non-
structural devices like landscaped swales and infiltration basins. The sustainable approach is cost
effective and attractive. It also addresses erosion, water pollution, combined sewer overflows and
other stormwater runoff problems all at once.
EAC Proposed Options: Options to consider for recommendation to the Village Council and staff
are:
1) Tequesta should mandate more use of natural landscaping on all new developments,
including Village street and right-of-way projects, as a proactive, low cost means of
reducing stormwater runoff and associated pollution. See Policy 1.3.3 below.
1 City of Portland, OR, Department of Environmental Services, Why Sustainable Stormwater Management Matters
2
Page 24 of 41
Agenda Item #4.
2) The Village could mandate or incentivize use of rain barrels, cisterns, and planters, and
non-structural devices like landscaped swales and infiltration basins, with reduced annual
stormwater assessments and reduced permit fees as the incentive.
3) The Village, for all new residential development or for renovations falling within adopted
threshold requirements', require the first 2 inches of rainfall to be held on the property
and/or use of other stormwater on site capture options.3 How they accomplish this may be
up to the property owner, but innovation will result to meet the adopted standard.
4) The Tequesta Village Council and staff should highly prioritize expansion of the
streetscape program as promised in the Village of Tequesta Comprehensive Plan,
Conservation Element, Policy: 1.10.3. page 18.
5) The Tequesta Village Council and staff should preserve the lands it owns at Remembrance
Park and that land between Cypress Drive and the FEC Railroad property and expand its
ownership of preserved open space land wherever financially feasible to facilitate
reductions in annual stormwater runoff volume, while providing native habitat for wildlife
and cleaner air for all.
6) The Village Council and/or staff should strengthen the internal Development Review
Committee (DRC) process for compliance with industry best practices, utilization of state
of the art infrastructure, and to assign CIP included costs to new development proposals
wherein a defendable nexus can be established to assign such costs, or a portion thereof, as
a condition of approval of said development, upgrade all subdivision and on -site
stormwater regulations to be reviewed by DRC or the Building Official, and recalculate
the amount of impervious surface for every property in the Village since the creation of the
Tequesta Stormwater Utility to ensure the proper amount of equivalent residential units
(ERU) have been assigned to each property for adequate and accurate assessment rate
calculations.
Objective: 1.1.0 - The Village shall incorporate and annually update its five-year schedule of
stormwater drainage capital improvement projects into its Capital Improvements Schedule. Capital
Improvements needs are defined as:
(1) those public drainage improvements necessary to correct existing deficiencies in order to
maximize the use of existing facilities while maintaining the adopted Level of Service; or
(2) those public drainage improvements necessary to meet projected future needs based upon the
adopted Level of Service without encouraging urban sprawl, and/or;
(3) improvements that will otherwise assist in the achievement of Comprehensive Plan goals,
objectives and policies.
TGB Comment: See EAC proposed options below.
hiips://IibEM.municode.com/fl/palm beach/codes/code of ordinances?nodeld=PTIICOOR CH86PL ARTIIISTM
A S86-95THRE
3
hiips://Iibrary.municode.com/fl/palm beach/codes/code of ordinancesbodeld=PTIICOOR CH3000COMASY A
RT111CORE DMADLESECOMA S30-114DR
3
Page 25 of 41
Agenda Item #4.
EAC Proposed Options:
1) Incorporate sustainable stormwater management alternatives to the traditional piped only
approach wherever possible. Options to consider for recommendation to the
Village Council and staff are: See the following Comprehensive Plan, Utilities Element,
Stormwater Management Sub -Element policies enumerated herein, and the options
recommended by the EAC that should also receive 5-Year CIP inclusion, in addition to
traditional infrastructure funding allocations to ensure necessary funding for compliance:
Policy 1.2.2; Policy 1.2.5; Policy 1.2.6; Policy 1.2.7; Policy 1.2.8; Policy 1.3.3; and, Policy
1.3.4.
2) The Tequesta Village Council and staff should preserve the lands it owns at Remembrance
Park and that land between Cypress Drive and the FEC Railroad property and expand its
ownership of preserved open space land wherever financially feasible to facilitate
reductions in annual stormwater runoff volume, while providing native habitat for wildlife
and cleaner air for all.
Policy: 1.1.1- The Village Stormwater utility shall maintain a 10-year Capital Improvements
schedule for storm water facilities as a guideline for planning facilities over the long term.
TGB Comment: Admirable, but hard to see beyond 5 years with accuracy. Where is this 10-year
plan?
EAC Proposed Options:
1) Incorporate sustainable stormwater management alternatives to the traditional piped only
approach wherever possible. Options to consider for recommendation to the Village
Council and staff are: See the following Comprehensive Plan policies that should also
receive 5-Year CIP inclusion, in addition to traditional infrastructure funding allocations
to ensure necessary funding for compliance: Policy 1.2.2; Policy 1.2.5; Policy 1.2.6; Policy
1.2.7; Policy 1.2.8.; Policy 1.3.3; and, Policy 1.3.4.
2) The Village Council and/or staff should strengthen the internal Development Review
Committee (DRC) process for compliance with industry best practices, utilization of state
of the art infrastructure, and to assign CIP included costs to new development proposals
wherein a defendable nexus can be established to assign such costs, or a portion thereof,
as a condition of approval of said development, upgrade all subdivision and on -site
stormwater regulations to be reviewed by DRC or the Building Official, and recalculate
the amount of impervious surface for every property in the Village since the creation of the
Tequesta Stormwater Utility to ensure the proper amount of equivalent residential units
C!
Page 26 of 41
Agenda Item #4.
(ERU) have been assigned to each property for adequate and accurate assessment rate
calculations.
Policy: 1.2.2 - The Village shall continue its efforts to increase on -site retention/detention capacity
of drainage basins in order to minimize to the extent possible stormwater runoff to the Loxahatchee
River and Intracoastal Waterway.
TGB Comment: What is the Village currently doing to increase on -site retention/detention
capacity of Village drainage basins?
EAC Proposed Options:
1) Enforce Policy 1.3.3 below in regard to all development and/or redevelopment activities
associated with onsite drainage facilities that shall be designed and reviewed to maximize
nonstructural techniques (i.e., on -site retention and/or detention, use of pervious surfaces,
swale areas, native vegetation and Xeriscape landscaping).
2) For all new residential development or for renovations falling within adopted threshold
requirements', require the first 2 inches of rainfall to be held on the property and/or use of
other stormwater on site capture options.5
3) The Village Council and/or staff should strengthen the internal Development Review
Committee (DRC) process for compliance with industry best practices, utilization of state
of the art infrastructure, and to assign CIP included costs to new development proposals
wherein a defendable nexus can be established to assign such costs, or a portion thereof, as
a condition of approval of said development, upgrade all subdivision and on -site
stormwater regulations to be reviewed by DRC or the Building Official, and recalculate
the amount of impervious surface for everyproperty in the Village since the creation of the
Tequesta Stormwater Utility to ensure the proper amount of equivalent residential units
(ERU) have been assigned to each property for adequate and accurate assessment rate
calculations.
4) The Tequesta Village Council and staff should preserve the lands it owns at Remembrance
Park and that land between Cypress Drive and the FEC Railroad property and expand its
ownership of preserved open space land wherever financially feasible to facilitate
reductions in annual stormwater runoff volume, while providing native habitat for wildlife
and cleaner air for all
Policy: 1.2.3- The Village shall require new developments to limit post -development runoff rates
and volumes to pre -development conditions.
hiips://IibEM.municode.com/fl/palm beach/codes/code of ordinances?nodeld=PTI1C00R CH86PL ARTIIISTM
A S86-95THRE
5
hiips://Iibrary.municode.com/fl/palm beach/codes/code of ordinance0nodeld=PTIICOOR CH3000COMASY A
RTIHCORE DMADLESECOMA S30-114DR
5
Page 27 of 41
Agenda Item #4.
TGB Comment: The Village should enumerate what options are deemed acceptable for meeting
this requirement.
EAC Proposed Options: Options to consider for recommendation to the Village Council and staff
are: To facilitate compliance enumerated in the Code, the following:
1) Enforce Policy 1.3.3 below in regard to all development and/or redevelopment activities
associated with onsite drainage facilities that shall be designed and reviewed to maximize
nonstructural techniques (i.e. on -site retention and/or detention, use of pervious surfaces,
swale areas, native vegetation and Xeriscape landscaping).
2) For all new residential development or for renovations falling within adopted threshold
requirements6, require the first 2 inches of rainfall to be held on the property and/or use of
other stormwater on site capture options.
3) The Village Council and/or staff should strengthen the internal Development Review
Committee (DRC) process for compliance with industry best practices, utilization of state
of the art infrastructure, and to assign CIP included costs to new development proposals
wherein a defendable nexus can be established to assign such costs, or a portion thereof, as
a condition of approval of said development, upgrade all subdivision and on -site
stormwater regulations to be reviewed by DRC or the Building Official, and recalculate
the amount of impervious surface for everyproperty in the Village since the creation of the
Tequesta Stormwater Utility to ensure the proper amount of equivalent residential units
(ERU) have been assigned to each property for adequate and accurate assessment rate
calculations.
Policy: 1.2.4- The Village shall protect and preserve water quality by use of construction site
Best Management Practices;(BMPs) and the incorporation of techniques such as on -site retention
and/or detention, use of pervious surfaces, native vegetation and Xeriscape Landscaping
practices when considering all proposals for development and/or redevelopment.
TGB Comment: Tequesta is required to have a written SOP implementing a pre -construction site
plan review program pertaining to construction site runoff per its MS4 Permit, part of the
NPDES.
The greatest water pollution threat from soil -disturbing activities such as construction is the
introduction of sediment from the construction site into storm drain systems or natural receiving
waters. CALTRAN indicates a three -pronged approach is necessary to combat this stormwater
threat, as follows:
hiips://IibEM.municode.com/fl/palm beach/codes/code of ordinances?nodeld=PTI1C00R CH86PL ARTIIISTM
A S86-95THRE
hiips://Iibrary.municode.com/fl/palm beach/codes/code of ordinancesbodeld=PTIICOOR CH3000COMASY A
RTIHCORE DMADLESECOMA S30-114DR
0
Page 28 of 41
Agenda Item #4.
Temporary soil stabilization practices reduce erosion associated with disturbed soil areas
(DSAs).
Temporary run-on control practices prevent storm water flows (sheet and concentrated)
from contacting DSAs.
Temporary sediment control practices reduce sediment caused by erosion from entering a
storm drain system or receiving water.
EAC Proposed Options: Options to consider for recommendation to the Village Council and staff
are:
1) Adopt and enforce Construction Site BMP's as soon as possible. Sources for such BMP's
are listed below. If the Florida Building Code enumerates BMPs for stormwater runoff and
quality control at construction sites, such code sections should also be placed in the Village
Code of Ordinances for easy public access. Otherwise, use the sources below to develop
construction site BMPs for codification.
2) The Village Council and/or staff should strengthen the internal Development Review
Committee (DRC) process for compliance with industry best practices, utilization of state
of the art infrastructure, and to assign CIP included costs to new development proposals
wherein a defendable nexus can be established to assign such costs, or a portion thereof, as
a condition of approval of said development, upgrade all subdivision and on -site
stormwater regulations to be reviewed by DRC or the Building Official, and recalculate
the amount of impervious surface for every property in the Village since the creation of the
Tequesta Stormwater Utility to ensure the proper amount of equivalent residential units
(ERU) have been assigned to each property for adequate and accurate assessment rate
calculations.
http: //64.130.42.93/professional/Stormwater-bmpmanualpdfpgs.S-44
https://www.sfwmd.govlsitesldefault/files/documents/bmp manual.ndf, page 29.
https://www.gpa.gov/sites/production/iles/2015-10/documents/sw_swppp Quidepdf
Policy: 1.2.5 - The Village shall maintain levels of pollutants at all outfalls within its jurisdiction
into the North and Northwest Forks of the Loxahatchee River as part of its "Wet Weather"
Sampling regulations of the National Pollutant Discharge Elimination System Stormwater
Permitting Program.
TGB Comment: Perhaps the Village should consider reducing levels of pollutants at all
referenced outfalls? According to the Tequesta MS4 permit, Part VIII, A, "the stormwater
management program must be designed and implemented to reduce the discharge of pollutants
from each permittee's MS4 to surface waters of the State to the MEP." A copy of the Palm
Beach County MS4 permit, of which Tequesta is a party, can be viewed at the following link:
7
Page 29 of 41
Agenda Item #4.
http://www.pbco-npdes.org/pdf/Cycle4PaImBeachCoun!yPerinit.pd
Permit.pdf
Wet weather sampling occurs during or immediately after a rain event to assess whether pollutants
are being flushed into a waterway via stormwater runoff. Sampling involves observations of water
color, smell, turbidity, and presence of floating debris. Then water samples are taken to test for
various indicators, such as levels of nitrogen, phosphorus, dissolved oxygen, bacteria, and other
water quality indicators, but this is highly dependent on the impairment and the water quality
indicators of the designated use(s) of the stream.
EAC Proposed Options: Options to consider for recommendation to the Village Council and staff
are:
1) Reduce the level of pollutants being discharged by establishing, or continuing, a
proactive wet weather sampling program per the terms of the Village MS4 permit.
2) Expand tree -based streetscapes throughout the Village to reduce stormwater discharge
and pollutant loads into the Loxahatchee River, Intracoastal Waterway and Atlantic
Ocean.
3) The Tequesta Village Council and staff should preserve the lands it owns at Remembrance
Park and that land between Cypress Drive and the FEC Railroad property and expand its
ownership of preserved open space land wherever financially feasible to facilitate
reductions in annual stormwater runoff volume, while providing native habitat for wildlife
and cleaner air for all.
4) The Village Council and/or staff should strengthen the internal Development Review
Committee (DRC) process for compliance with industry best practices, utilization of state
of the art infrastructure, and to assign CIP included costs to new development proposals
wherein a defendable nexus can be established to assign such costs, or a portion thereof, as
a condition of approval of said development, upgrade all subdivision and on -site
stormwater regulations to be reviewed by DRC or the Building Official, and recalculate
the amount of impervious surface for everyproperty in the Village since the creation of the
Tequesta Stormwater Utility to ensure the proper amount of equivalent residential units
(ERU) have been assigned to each property for adequate and accurate assessment rate
calculations.
Policy: 1.2.6 - The Village shall maintain levels of pollutants at all dry weather sampling areas
(area with three (3) days of no rain) as part of its "Dry Weather" Sampling regulations of the
National Pollution Discharge Elimination System Stormwater Permitting Program.
TGB Comment: Perhaps the Village should consider reducing levels of pollutants at all
referenced outfalls? According to the Tequesta MS4 permit, Part VIII, A, "the stormwater
management program must be designed and implemented to reduce the discharge of pollutants
0
Page 30 of 41
Agenda Item #4.
from each permittee's MS4 to surface waters of the State to the MEP." A copy of the Palm
Beach County MS4 permit, of which is a party, can be viewed at the following link:
hqp://www.pbco-npdes.org/pdf/Cycle4Paln-tBeachCountyPermit.12d
If one sees a liquid coming from an outlet and it hasn't rained in the past 72 hours, that is likely a
sign of a leak or illicit dumping somewhere in the system. That is why dry weather screening and
sampling is important. It makes it easier to find illicit discharges than during wet weather events.
Dry weather sampling of outfalls is required in priority areas that are classified as high or low
priority (it does not need to be done for catchments in areas that are classified as excluded
outfalls).
For this type of sampling, a local government will generally measure the following if flow is
found:
• Temperature
• Conductivity
• pH
• turbidity
• chlorine
• surfactants
• potassium
• ammonia
• fecal and total coliform bacteria
• Any listed impairments
Tequesta's MS4 permit indicates that dry weather testing is no longerg used. The permit reads
"Florida's hydrologic and water table conditions make dry weather field screening impossible in
many areas. Instead, the Department has concluded that more environmental benefits can be
achieved through the implementation of a proactive illicit discharge detection program, which is
set forth in the remaining sections of Part X.A. 7 of this permit. " This appears to be applicable to
all local governments in Palm Beach County and not just to Tequesta.
EAC Proposed Options: Options to consider for recommendation to the Village Council and staff
are:
1) Reduce the level of pollutants being discharged by establishing a proactive illicit
discharge detection program forthwith as set forth in Part III.A.7 of the Village's MS4
permit.
2) Expand tree -based streetscapes throughout the Village to reduce stormwater discharge
and pollutant loads into the Loxahatchee River, Intracoastal Waterway and Atlantic
Ocean.
3) The Tequesta Village Council and staff should preserve the lands it owns at Remembrance
Park and that land between Cypress Drive and the FEC Railroad property and expand its
ownership of preserved open space land wherever financially feasible to facilitate
0
Page 31 of 41
Agenda Item #4.
reductions in annual stormwater runoff volume, while providing native habitat for wildlife
and cleaner air for all.
4) The Village Council and/or staff should strengthen the internal Development Review
Committee (DRC) process for compliance with industry best practices, utilization of state
of the art infrastructure, and to assign CIP included costs to new development proposals
wherein a defendable nexus can be established to assign such costs, or a portion thereof, as
a condition of approval of said development, upgrade all subdivision and on -site
stormwater regulations to be reviewed by DRC or the Building Official, and recalculate
the amount of impervious surface for every_property in the Village since the creation of the
Tequesta Stormwater Utility to ensure the proper amount of equivalent residential units
(ERU) have been assigned to each property for adequate and accurate assessment rate
calculations.
Policy: 1.2.7 - The Village shall maintain water quality standards consistent with the National
Pollutant Discharge Elimination System Program on an ongoing basis.
TGB Comment: This means reducing pollution loads according to the MS4 permit.
EAC Proposed Options: Options to consider for recommendation to the Village Council and staff
are:
Start with a pilot project that captures debris and petroleum -based runoff in selected drainage inlets
discharging into the Loxahatchee River, with discharge water quality testing, before and after, to
see the results of improved capture techniques on discharged pollutant loads.
Policy: 1.2.8 - The Village shall seek funding to evaluate the impact of sea level rise on the storm
water system and adopt environmental, and technically feasible strategies to adapt to sea level
impact and optimize benefits.
TGB Comment: This is a very expensive proposition, but necessary as we are surrounded by water
on three sides.
EAC Proposed Options: Options to consider for recommendation to the Village Council and staff
are:
1) Village Council and staff must be prepared to move aggressively to secure any anticipated
forthcoming State or Federal government grant programs to fund evaluations of the impact
of sea level rise to the Village stormwater system, other Village infrastructure, and
property, both public and private.
2) Step number 1 is a comprehensive Vulnerability Assessment of the impact of sea level rise
on all interests of the Village of Tequesta, public and private. Firms with experience that
10
Page 32 of 41
Agenda Item #4.
can do this important work will be in short supply once the aforementioned grant programs
come to fruition.
3) The Tequesta Village Council and staff should preserve the lands it owns at Remembrance
Park and that land between Cypress Drive and the FEC Railroad property and expand its
ownership of preserved open space land wherever financially feasible to facilitate
reductions in annual stormwater runoff volume, while providing native habitat for wildlife
and cleaner air for all.
4) The Village Council and/or staff should strengthen the internal Development Review
Committee (DRC) process for compliance with industry best practices, utilization of state
of the art infrastructure, and to assign CIP included costs to new development proposals
wherein a defendable nexus can be established to assign such costs, or a portion thereof, as
a condition of approval of said development, upgrade all subdivision and on -site
stormwater regulations to be reviewed by DRC or the Building Official, and recalculate
the amount of impervious surface for everyproperty in the Village since the creation of the
Tequesta Stormwater Utility to ensure the proper amount of equivalent residential units
(ERU) have been assigned to each property for adequate and accurate assessment rate
calculations.
Policy:1.3.1 - Protection from the degree of flooding that would result from a twenty-five (25)
year frequency, twenty-four (24) hour duration storm event is hereby adopted as the Village's
Level of Service Standard for stormwater drainage facilities and shall be used as the basis of
estimating the availability of capacity and demand generated by a proposed development project.
TGB Comment: This is fairly standard LOS for drainage in Palm Beach County.
EAC Proposed Options: Options to consider for recommendation to the Village Council and staff
are:
1) Sea level rise has the potential to negate the ability of Tequesta's storm water drainage
facilities to continue to meet this adopted LOS. A vulnerability assessment should also
ascertain the sea level rise impact on the LOS and provide recommendations for the Village
to adapt to any identified LOS impacts to maintain environment friendly drainage and flood
control and the adopted LOS.
2) The Village Council and/or staff should strengthen the internal Development Review
Committee (DRC) process for compliance with industry best practices, utilization of state
of the art infrastructure, and to assign CIP included costs to new development proposals
wherein a defendable nexus can be established to assign such costs, or a portion thereof, as
a condition of approval of said development, upgrade all subdivision and on -site
stormwater regulations to be reviewed by DRC or the Building Official, and recalculate
the amount of impervious surface for everyproperty in the Village since the creation of the
Tequesta Stormwater Utility to ensure the proper amount of equivalent residential units
11
Page 33 of 41
Agenda Item #4.
(ERU) have been assigned to each property for adequate and accurate assessment rate
calculations.
3) The Tequesta Village Council and staff should preserve the lands it owns at Remembrance
Park and that land between Cypress Drive and the FEC Railroad property and expand its
ownership of preserved open space land wherever financially feasible to facilitate
reductions in annual stormwater runoff volume, while providing native habitat for wildlife
and cleaner air for all.
Policy: 1.3.3 - All development and/or redevelopment activities associated with onsite drainage
facilities shall be designed and reviewed to maximize nonstructural techniques (i.e., on -site
retention and/or detention, use of pervious surfaces, swale areas, native vegetation and Xeriscape
landscaping) in combination with structural drainage facilities (i.e. underground drainage
facilities) to reduce storm water runoff, maintain local recharge and protect water quality.
TGB Comment: Absolutely. This should be done as soon as possible.
EAC Proposed Options: Options to consider for recommendation to the Village Council and staff
are: See our previous options for consideration herein, which referenced this Policy 1.3.3 and
stated the following:
1) Tequesta should mandate more use of natural landscaping on all new developments,
including Village street and right-of-way projects, as a proactive, low cost means of
reducing stormwater runoff and associated pollution.
2) The Village could mandate or incentivize use of rain barrels, cisterns, and planters, and
non-structural devices like landscaped swales and infiltration basins, with reduced annual
stormwater assessments and reduced permit fees as the incentive.
3) The Village, for all new residential development or for renovations falling within adopted
threshold requirements$, require the first 2 inches of rainfall to be held on the property
and/or use of other stormwater on site capture options.9 How they accomplish this may be
up to the property owner, but innovation will result to meet the adopted standard.
4) The Tequesta Village Council and staff should preserve the lands it owns at Remembrance
Park and that land between Cypress Drive and the FEC Railroad property and expand its
ownership of preserved open space land wherever financially feasible to facilitate
reductions in annual stormwater runoff volume, while providing native habitat for wildlife
and cleaner air for all.
hiips://IibEM.municode.com/fl/palm beach/codes/code of ordinances?nodeld=PT11C00R CH86PL ARTIIISTM
A S86-95THRE
s
hiips://Iibrary.municode.com/fl/palm beach/codes/code of ordinancesbodeld=PTIICOOR CH3000COMASY A
RT111CORE DMADLESECOMA S30-114DR
12
Page 34 of 41
Agenda Item #4.
5) The Village Council and/or staff should strengthen the internal Development Review
Committee (DRC) process for compliance with induslEy best practices, utilization of state
of the art infrastructure, and to assign CIP included costs to new development proposals
wherein a defendable nexus can be established to assign such costs, or a portion thereof, as
a condition of approval of said development, upgrade all subdivision and on -site
stormwater regulations to be reviewed by DRC or the Building Official, and recalculate
the amount of impervious surface for every_property in the Village since the creation of the
Tequesta Stormwater Utility to ensure the proper amount of equivalent residential units
(ERU) have been assigned to each property for adequate and accurate assessment rate
calculations.
Policy: 1.3.4 — The Village shall continue its routine maintenance program through the inspection
of catch basins, culverts, outfalls and retention areas as a preventative measure against any major
system failure, as required by the National Pollutant Discharge Elimination Program Stormwater
Permitting Program.
TGB Comment: This is required per the Village's NPDES MS4 permit.
EAC Proposed Options: Options to consider for recommendation to the Village Council and staff
are:
Swale areas require periodic maintenance that requires scarfing (reducing the grade and
reestablishing the proper slope) of the swale to remove build up of debris, soils and organic
materials, all of which can affect the designed percolation rates and water flow within the swale.
Some swales in the Village (Seabrook Road) are designed with curb and gutter, with flumes that
direct water into the swale. Blockage of these flumes with swale soil buildup and resulting
vegetation can reduce the designed drainage capability of the system, pooling or ponding and,
potentially, downstream flooding. Swale maintenance should receive an equal focus to that given
to catch basins, culverts, outfalls and retention areas in the routine maintenance program required
by the NPDES permitting program applicable to the Village.
13
Page 35 of 41