Using performance standards related to flow quantity, quality, and pattern, modify development regulations, codes, and policies to support the use of green infrastructure/low impact development techniques to mimic natural systems for developments within aquifer recharge zones with moderate or high vulnerability or in areas where streams and riparian areas have been channelized or developed (primarily in the Downtown, UH, and UM LUTAs). Low impact development techniques include but are not limited to:
- Onsite treating or filtering of stormwater contaminants.
- Discharging run-off as sheet-flow after passing through grassy or vegetated open space areas, rather than discharging run-off through concentrated outfalls.
- Creating attractive open space amenities that double as stormwater detention, retention, and / or filtering systems.
- Utilizing pervious pavement, pavers, or asphalt in appropriate locations (i.e. sidewalks, parking spaces, trails, patios, etc.).
- Utilizing planters (at grade or raised), vegetated landscape strips adjacent to roads and parking areas, and alternative curbing designs (allowing stormwater to easily move from impervious areas to pervious areas), to encourage stormwater infiltration and temporary detention.
- Rain Gardens
- Bioswales
- Green streets and alleys
- Green roofs
- Rooftop collection
- Underground detention
- Increased tree canopy preservation/tree planting
- Land/open space conservation
- Cluster development