Instead of conventional catch basin and culvert designs in its parking lots, Victoria International Airport constructed rain gardens and swale ditches to collect run-off. The swale ditches help filter pollutants from parked cars and airside vehicles and equipment before pollutants are released into the storm water system. According to the CRD's Rainwater Management Tour, the parking lot expansion was designed to attenuate in 1 in 2 year storm events, and overflow routing was designed to handle a 1 in 100 year event. The airport's storm water flows into Reay Creek, which empties to Bazan Bay in the East, and Ten Ten Creek, which empties to Patricia Bay in the West.

Related links:

• Victoria International Airport Environmental Management Plan
• What is a bioswale?