Lake Cathie, Sewer Vitalisation Shaft

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Consultation has concluded

Council is committed to providing appropriate infrastructure and services including water cycle, waste and sewerage management and to plan, investigate, design and construct sewerage assets ensuring health, safety and environmental protection and the future growth of the region.

Council has received feedback from a number of residents in Seawide Estate, Lake Cathie about an odour from the nearby sewer system, which can be very strong depending on the weather and wind conditions.

To address the issue of the odour problem at the site, Council has investigated and trialed a number of solutions, this included an option of chemical treatment. After extensive investigation of different options, the installation of a sewer vent shaft, with an additional chemical treatment, has been assessed as likely to provide the best results, dispersing the odours higher into the air and away from residents.

About the Sewer Vent Shaft:

  • The shaft allows air to enter and exit the wastewater system to ensure it works properly.  
  • The shaft needs to be a specific height to maximise airflow and minimise the risk of odour from the wastewater network. 
  • The vent shaft would be a pole, approximately 9-12m high and 300mm in diameter. There would also be a maintenance box adjacent to the stack. 
  • A vent shaft normally requires a space of about 2.5 x 2.5 metres as they are bolted to a concrete block that is flush with the ground.

Read the Sewer Vent Shaft Frequently Asked Questions (FAQs) to learn more about the sewer vent shaft.

How to provide your feedback:

  1. Read the FAQ's
  2. View the artist impression of the proposed sewer vent shaft
  3. Take the short survey below to provide your feedback on the preferred option and any other comments.
  4. Have a question? Ask it below on the Your question tab and one of our helpful staff will get back to you
  5. Contact Council on 6581 8111 or council@pmhc.nsw.gov.au to speak with one of our project officers.

Consultations closes 5pm Sunday 13 December 2020.

Council is committed to providing appropriate infrastructure and services including water cycle, waste and sewerage management and to plan, investigate, design and construct sewerage assets ensuring health, safety and environmental protection and the future growth of the region.

Council has received feedback from a number of residents in Seawide Estate, Lake Cathie about an odour from the nearby sewer system, which can be very strong depending on the weather and wind conditions.

To address the issue of the odour problem at the site, Council has investigated and trialed a number of solutions, this included an option of chemical treatment. After extensive investigation of different options, the installation of a sewer vent shaft, with an additional chemical treatment, has been assessed as likely to provide the best results, dispersing the odours higher into the air and away from residents.

About the Sewer Vent Shaft:

  • The shaft allows air to enter and exit the wastewater system to ensure it works properly.  
  • The shaft needs to be a specific height to maximise airflow and minimise the risk of odour from the wastewater network. 
  • The vent shaft would be a pole, approximately 9-12m high and 300mm in diameter. There would also be a maintenance box adjacent to the stack. 
  • A vent shaft normally requires a space of about 2.5 x 2.5 metres as they are bolted to a concrete block that is flush with the ground.

Read the Sewer Vent Shaft Frequently Asked Questions (FAQs) to learn more about the sewer vent shaft.

How to provide your feedback:

  1. Read the FAQ's
  2. View the artist impression of the proposed sewer vent shaft
  3. Take the short survey below to provide your feedback on the preferred option and any other comments.
  4. Have a question? Ask it below on the Your question tab and one of our helpful staff will get back to you
  5. Contact Council on 6581 8111 or council@pmhc.nsw.gov.au to speak with one of our project officers.

Consultations closes 5pm Sunday 13 December 2020.

CLOSED: This discussion has concluded.

If you have a general, question about the Sewer Vitalisation Shaft please write your question below and one of our project team will respond to you within 48 hours.