Environment Protection Authority Victoria has warned that recent wet weather has resulted in a high risk of sediment run-off at new residential and commercial subdivisions.
EPA metro manager Emma Roper said that during rainfall it was “easy” for top layers of soil to be washed away from cleared and levelled land stripped of its groundcover and plants.
“It may just look like mud, but high levels of sediment in waterways can kill aquatic plants, interfere with fish and frog breeding, and, in extreme cases, smother the underwater habitat, suffocating fish and many smaller waterborne-species,” Ms Roper said.
“The sediment also catches in low-lying areas, clogging drains, and probably getting your new neighbours offside.”
Ms Roper said prevention was better than cure and encouraged all property developers to be mindful of their potential impact on the environment.
“New residential and commercial developments are occurring all over the state so if everyone has the attitude of, ‘It’s only a little bit’, it will really take its toll.
“Careful design and efficient construction sequences can minimise site disturbance as well as save money.
“Clear only the necessary areas, preserve as much grass as possible and schedule clearing to occur as close to the beginning of construction as possible.”
Ms Roper said that in addition to property and building companies being aware of best practice methods, she encouraged new land owners to be vigilant during development of their blocks.
“If you’re concerned, ask about what sediment control measures, such as filters, fencing and grass seeding, are in place,” she said.
The EPA’s Preventing erosion and sediment impacts: A guide for business is available online.
Go to the standards, compliance and planning section of epa.vic.gov.au/business-and-industry.
