Reducing water contamination & runoff

Many industrial, commercial and domestic activities cause water to become polluted with contaminants. To protect our environment and waterways, we must keep certain chemicals and contaminants out of our roadside gutters, stormwater drainage and waters.

The Environmental Protection Act 1994 lists these banned contaminants.

Council enforces the protection of waterways in accordance with the Environmental Protection Act 1994, and substantial penalties apply for unlawfully contaminating our waters.

Water contaminants are listed below, as defined in Schedule 10 of the Queensland Government's Environmental Protection Regulation 2019.


Keeping our waterways healthy

Individual, businesses and households have a responsibility to keep our waterways clear for a healthy environment and reef.  Here are some things everyone can do:

  • Know where your stormwater drains, inlets, channels, easements and waterways are so you are able to protect them from potential contamination.
  • Collect and lawfully dispose of litter or potential contaminant and collect all wastewater
  • Avoid using harmful or toxic chemicals when conducting activities such as pressure cleaning
  • Have a means of containing waste such as a spill kit or regulated waste transporter
  • Ensure adequate rubbish containment to prevent the movement of litter
  • Install appropriate measures to prevent contaminant discharge such as erosion and sediment controls.

Car wash events

The runoff from washing cars on roadways flows into our creeks and finally the Great Barrier Reef. These pollutants can harm the aquatic environment and reduce water quality.

Do your bit by holding a more environmentally friendly car wash by following these tips:

  • Wash vehicles on grassed, gravel or impervious sealed areas. (On impervious sealed areas, use mats, portable bunds and sand bags to contain the waste water.)
  • Dispose of wastewater onto gardens or grassed areas.
  • Collect all waste and dispose of it at a Council transfer station.
  • Use trigger hoses or buckets to reduce water usage. Alternatively, use waterless car washing kits.
  • Choose environmentally friendly detergents that are non-toxic, chlorine free, phosphate-free or biodegradable.
  • Approach commercial car washes to participate as hosts of your fundraiser.

Last Updated: 30 June 2023

Latest News > All News

Cairns, let’s enjoy QLD Day together!

Cairns’ residents are invited to celebrate QLD Day on the Cairns Esplanade on Saturday, 6 June, to recognise the state’s...

Community & Lifestyle
4 June 2026

More than $200,000 for community events

A total of $203,427 will be invested through Round 18 of the Community Partnerships Grants, supporting 18 community events and...

Community & Lifestyle
29 May 2026

Cairns Botanic Gardens giant comes to bloom

The Cairns Botanic Gardens is home to some impressive tropical flora, including the Titan Arum, affectionately known as the ‘corpse...

Community & Lifestyle
29 May 2026