Water Quality & Efficiency

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Stormwater Quality

Leaves collected in a puddle on a curbside drain along a street.

Intent

To protect water bodies from degradation due to the impacts of urban activity.

Requirements

Ensure the removal of 80% of Total Suspended Solids from runoff leaving the site.

Stormwater Quantity

A cyclist's black bike parked on a small patch of land by a lake, with ducks swimming nearby, and a tunnel opening in a hillside surrounded by greenery in the background.

Intent

To promote infiltration, and evaporation. Providing more resilience, reduce risks of flooding/erosion, and reduced demand on water treatment plants.

Requirements

Retain runoff volume from the 10 millimeter rainfall event on site.

Rainwater Harvesting

A blue rain barrel with water overflowing from the top, surrounded by pink and purple flowers and green foliage in a garden setting.

Intent

To reduce potable water use for irrigation and interior building functions.

Requirements

Designed and constructed building for rainwater re-use for low-grade functions, AND reduce potable water used for irrigation.

Water Efficient Fixtures

Showerhead emitting a flow of water

Intent

To reduce potable water use for building functions.

Requirements

Install water fixtures that achieve a 40% reduction in potable water consumption for the building (excluding irrigation) over baseline fixtures.

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