integrating lid into the development planning process
TRANSCRIPT
Integrating LID Into the Development Planning Process
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 40C-42.026 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
Conventional Planning & Design LID Site 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-sacs Enclosed drainage systems
for stormwater conveyance Large detention ponds
Conservation of natural hydrology, trees, and vegetation
Minimized impervious surfaces
Dispersal of stormwater runoff
Conservation of stream & wetland buffers
Ecological landscaping
Managing Stormwater
The Problem The Solution 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 Space1) Enhanced Basins:Provide greater biological diversityProvide enhanced stormwater treatment
- provide staged elevations - native trees in basin bottom
Irregular shorelinesPedestrian pathNo clearing, mowing or removal of native vegetation
orAlternative 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
352 392 0997 x 425
Stephen Hofstetter
Alachua County [email protected](352) 264-6811http://www.alachuacounty.us/epd/nr/