Transcript LoW IMPACT DEVELOPMENT

Integrating LID Into the Development Planning Process
LOW IMPACT DEVELOPMENT
We Have a Responsibility!
 To meet Water Quality Protection Under 62-
40 F.A.C.
 Provide Flood Protection
 Address
Stormwater Management in
Comprehensive Plans / Land Development
Regulations
We Have a Problem!
We are not meeting our NPDES requirements and
water quality standards, water supplies are
decreasing while demands are increasing, and
we still need to manage for flooding!!
So How Do We Fix It?
The Solution
 Presumptive Criteria
for Water Quality
Demonstrate the system
provides water quality
treatment ( retention,
underdrain, exfiltration,
wet detention, swales or
dry detention) in
accordance with 40C42.026 F.A.C.
 Alternative Treatment
Systems
Affirmatively show that
system design will provide
equivalent treatment
Managing Stormwater
Conventional Planning & Design
Low Impact Development
Managing Stormwater
LID Site Design
Conventional Planning & Design
 Style of suburban development
over last 50 years
 Generally involves larger lots
 Clearing and grading of
significant portions of a site
 Wider streets and larger cul-de-

Conservation of natural
hydrology, trees, and vegetation

Minimized impervious surfaces

Dispersal of stormwater runoff

Conservation of stream &
wetland buffers

Ecological landscaping
sacs
 Enclosed drainage systems for
stormwater conveyance
 Large detention ponds
Managing Stormwater
The Solution
The Problem
 Loss of natural land or
open space
 Depleted drinking water
supply
 Reduced quantity and
quality of water resources
 Increased infrastructure
costs & maintenance
 Less land clearing and
grading costs
 Reduced infrastructure
costs
 Protection of water
quality
 Reduced stormwater
runoff
Who Are The Players?
 Property Owners
 Developers
 Local Government
 Water Management Districts
 Educators & Researchers
What Is Local Government’s Role?
 All development must be consistent with the
comprehensive plan and comply with the
Land Development Regulations
 Local government should promote & support
the most economical and sustainable
development applications
 Local government should coordinate with
WMDs
What Tools Does Local Government
Have?
 Comprehensive Plan
 Land Development Regulations
 Design Guidelines
 Development Review Process
 Monitoring / Maintenance
Comprehensive Plan
 Future Land Use Element
 Authorize / Incentivize Cluster Development
 Recognize LID as Alternative to Conventional
Development
 Provide Incentives (Density) for LID
Comprehensive Plan
 Stormwater Management Sub Element
 Define LID
 Recognize LID as Preferred Alternative
 New Development
 Retrofit (deficiencies)
 Establish Levels of Service
 Establish Maintenance Responsibilities
Comprehensive Plan
 Potable Water Sub Element
 Water Supply
 Protecting Water Sources (Quality)
 Water Conservation (Reducing Demand)
 Reusing Stormwater
 Reusing Reclaimed Water
Comprehensive Plan
 Conservation Element
 Recognize LID as Preferred Alternative for
Stormwater Management
 Allow Open Space Credit for LID Techniques
 Tree Cover Preservation
 Green Infrastructure
 Intergovernmental Coordination
 Establish Coordination Procedures with WMD for
LID Review / Approval
Comprehensive Plan
 Capital Improvement Element
 Establish Level of Service
 Establish LID as Preferred Alternative for Public
Investment
 Funding Mechanisms for LID
 Fiscal Incentives for LID
Land Development Regulations
 Modify stormwater management regulations
to include LID
 Establish Levels of Service
 Establish criteria for consideration of alternative
designs
 Establish Procedures




Master Plan requirement
Submission requirements
Review / Approval process
Coordination with WMD
Land Development Regulations
 Areas of code that should support LID
 Natural area protection
 Open space requirements
 Clustering standards
 Water conservation requirements
 TDR programs
 Water quality protection
Land Development Regulations
 Audit codes for obstacles
 Zoning / Land Use Regulations
 Stormwater Regulations
 Requirement for conventional designs only
 No options for stormwater on private lots
 Road requirements
 Parking / Other Design Criteria
Land Development Regulations
 Recommendations





Remove lot size requirements / use gross density
Provide credit for innovative design
Allow stormwater systems to be located on lots
Allow LID to be credited as open space
Do not allow conventional basins in wetland
buffers
 Allow flexibility in road width/ design
 Curb & gutter optional
Design Guidelines
 Put the details in Design Guidelines
 Buy-In by WMD
Sarasota County Model
Development Review




Make It Easy To Do the Right Thing
Early Review
Progressive Approval
Engage WMD
Development Review
 Roadblocks
 Requirements for engineering plans at initial
review stages
 Lack of early coordination with Water
Management District
Monitoring / Maintenance
 Establish maintenance responsibility
 Minimum criteria for homeowner’s
association (financial responsibility /
capacity)
 Require periodic monitoring
 Require contract / agreement
Still not seeing any LID?
If your code allows it, what’s stopping it?
 Is it public perception, State regulations, lack
of expertise in the area, lack of examples, lack
of education or knowledge that LID even
exists, fear of doing something different, lack
of staff support, etc…?
 So what can local governments do?
The Role of Local Government
 Lead by example (Is your municipality or county
incorporating LID into their new projects or
redevelopments?)
 Provide incentives in your code for LID or stricter
guidelines for water quality protection or water
conservation.
 Provide technical support (i.e. Sarasota LID Manual)
 Are there opportunities for financial support?
Incentives and Regulations
 Give credit for LID (i.e. Alachua County example –
open space credit for LID techniques and enhanced
stormwater basins)
 Allow LID techniques to meet local water quality and
quantity standards above WMD regulations
 Include LID in Green building/development codes
Alachua County Example:
Stormwater Areas Credited
Toward Open Space
1) Enhanced Basins:
Provide greater biological diversity
Provide enhanced stormwater treatment
- provide staged elevations
- native trees in basin bottom
Irregular shorelines
Pedestrian path
No clearing, mowing or removal of native vegetation
or
Alternative landscape plan with greater or equal biological
diversity and enhanced stormwater treatment
2) LID that treats 1st inch and is pervious gets credit
Provide Technical Support
 Provide an LID manual, referenced in the
code.
 Make the manual consistent with other
communities that incorporate LID.
 Consider expedited permits for LID projects
or not charging for resubmittals
 Train your staff.
Contacts
 Gene Boles, FAICP
Center for Building Better Communities
University of Florida
[email protected]
352 392 0997 x 425
 Stephen Hofstetter
Alachua County EPD
[email protected]
(352) 264-6811
http://www.alachuacounty.us/epd/nr/