Update Presentation

Low Impact Development: Project Update

Purpose:

update PC on project Get initial impressions on policy questions and stakeholder input

Background: 2007

City qualified for technical assistance from PSP Consultant reviewed code barriers and drafted new code Relationship to other projects PSP Status report in 2009 and 2010

What is low impact development (LID)?:

An

environmentally friendly way to treat stormwater Cost savings?

LID Examples

LID Examples  Traditional

vs. LID

LID Cost? Conventional Low Impact Grading/Roads

$569,698

$426,575

Storm Drains

$225,721

$132,558

SWM Pond/Fees

$260,858

$ 10,530

Bioretention/Micro Total

—

$175,000

$1,086,277

$744,663

Unit Cost

$14,679

$9,193

Lot Yield

74

81

Existing Policy: Local

– policies encourage, not specific – nothing mandatory. Regional – focus of efforts is PSP – nothing mandatory State – NPDES Phase II – nothing mandatory…yet

New Policies: Mandatory,

voluntary or incentive-based? Streets – narrow? Pervious paving? Impervious areas? – restrict impervious in ALL zones? PRDs? – more open space? Parking? – LID landscaping, 30% pervious?

New Policies Continued: Landscaping

& screening – native vegetation areas? Native plantings? Vegetation management? Land clearing – More detailed grading requirements? Detailed BMPs? LID projects – flexible stds (lot dimensions and density) in exchange for LID achievement.

Next Steps: Internal

review. Public involvement? Who? Developers? Residents? Business owners? Public hearings. Adoption.