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Water pollution and treatment

Water quality is primarily affected by pollution from point and diffuse sources, land management practices and water extraction. The information below has been designed to assist in better management of water pollution from these sources.

• Diffuse source water pollution
• Approved methods for the sampling and analysis of water pollutants in NSW
• Stormwater pollution from building sites
• Effluent reuse
• Licensing of sewage treatment systems
• Lower Hawkesbury-Nepean River nutrient management strategy
• Biosolids

Authorised officers

The information below is for authorised officers in local councils who have the authority to issue prevention notices for water pollution.  Under section 120 of the Protection of the Environment Operations Act it is an offence to pollute waters.

• Urban stormwater: soils and construction
• Stormwater first flush
• Domestic wastewater and septic systems
• Bunding and spill management
• Effluent reuse guidelines
• Water quality and prevention notices