City of Los Angeles Low Impact Developmentsustain.scag.ca.gov/Documents/2 City of LA Bureau of...
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City of Los Angeles Low Impact Development (LID) October 13, 2015 LID Overview LID Prescriptive Method LID for Large Scale Development GRASS Ida Meisami Bureau of Sanitation City of Los Angeles
Transcript of City of Los Angeles Low Impact Developmentsustain.scag.ca.gov/Documents/2 City of LA Bureau of...
City of Los Angeles
Low Impact
Development (LID)
October 13, 2015
LID Overview
LID Prescriptive Method
LID for Large Scale Development
GRASS
Ida Meisami
Bureau of Sanitation
City of Los Angeles
Background LID Ordinance Adopted: Nov 11, 2011
LID Ordinance Effective: May 12, 2012
LID Overview
Requirements:
Expanded on the exiting Standard Urban
Mitigation Plan (SUSMP) requirements of capturing the greater of either 85th
percentile or ¾ inch storm event by incorporating LID practices and standards.
Residential ( 4 units or less):
Projects must chose from prescriptive list of BMPs
All other developments:
Similar to SUSMP requirements
85th Percentile
LID Screening
Hillside Grading Areas
Earthquake Induced Liquefaction
Areas
Building and Safety Infiltration
Information Bulletin
Screening Criteria
LID Roadmap
Rain Barrels
Permeable pavers
Incidental Rainfall
Roof Runoff
Planter Boxes
Unlined (infiltration)
Lined
Rain Garden
Dry-wells
Infiltration
• Infiltration Trenches
• Infiltration Basins
• Dry Wells
• Permeable Pavement
• Underground Detention Chambers
Capture and Use
• Cisterns
• Rain Tanks
All Other Developments(commercial, industrial, etc.)Prior to LID, implemented under SUSMP
Maximize each option in priority order.
High Efficiency Bio-filtration
• Biofiltration
(Flow thru Planters)
• Bioinfiltration
• Vegetated Swales
Road To Compliance
Infiltration Galleries
• Infiltration Trenches
• Infiltration Basins
• Dry Wells
• Permeable Pavement
• Underground Detention Chambers
Infiltration
Infiltration Trenches
HIGH EFFECIENCY
BIOFILTRATION
CAPTURE & USE
INFILTRATION
Dry well
Porous Pavement
Permeable Pavers
Underground Dry Wells
Infiltration
Underground Infiltration Chambers
BENEFITS
• Meet LID Requirements
• Reduce Runoff
• Improve Stormwater Quality
• Recharge Aquifers
• Retain open space
Aboveground Storage
• Capture & Use Cisterns (above/below ground) with Irrigation
Capture & Use
Underground Cistern
HIGH EFFECIENCY
BIOFILTRATION
CAPTURE & USE
INFILTRATION
Drip Irrigation
Wilshire Grand
Mixed Use (Commercial / Hotel)
Capture & Use
50,000-gallon cisterns store
both rainwater and air-
conditioner condensate,
which will then used in
cooling towers.
BENEFITS
• Meet LID Requirements
• Reduce Runoff
• Improve Stormwater Quality
• LEED Credits
• Stormwater Quality
• Stormwater Quantity
• Water Efficient Landscaping
• Water Use Reduction
Biofiltration
• Biofiltration
(Flow thru Planter Boxes)
• Vegetated Swales
Planter BoxesBioinfiltration
Vegetated Swale
HIGH EFFECIENCY
BIOFILTRATION
CAPTURE & USE
INFILTRATION
Biofiltration
717 W. 9th St
34 story high Rise
Residential Building
BENEFITS
• Meets LID Requirements
• Reduce Runoff
• Improve Stormwater Quality
• Higher rental values
• Creates open community space
Greenways to Rivers Arterial Stormwater
System
GRASS
• A multifunctional greenway system
• Addresses park poverty
• Captures storm water through a variety of BMPs
• PRIORITY 1
• Grid of greenways
• Major attractions
• Spaced 5 miles apart
• PRIORITY 2
• 2-3 mile grid
• Connect remaining
corridors
Prioritization
Regional Green Networks
Modeling
Greenway Design
www.facebook.com/lastormwaterprogram
www.youtube.com/user/lastormwaterprogram
www.lastormwater.org/blog/
Question / AnswersIda Meisami ( LID)Bureau of SanitationCity of Los Angeles(213) [email protected]
Additional Information:
Deborah Deets ( GRASS)Bureau of SanitationCity of Los Angeles(213) [email protected]
