Boundary odour monitor readings

There are five odour monitors at Mogden which measure levels of hydrogen sulphide, which is one of the compounds that make up odour at sewage treatment works.

The charts below provide a breakdown of weekly odour monitor readings taken throughout the year.

Odour monitor readings

• Odour monitor readings - 2012 (0.46Mb)
• Odour monitor readings - 2011 (1.82Mb)
• Odour monitor readings - 2010 (1.93Mb)
• Odour monitor readings - 2009 (0.54Mb)
• Odour monitor readings - 2008 (0.80Mb)
• Odour monitor readings - 2007 (0.65Mb)
• Odour monitor readings - 2006 (0.57Mb)
• Odour monitor readings - 2005 (0.35Mb)

Sludge gas monitor readings

There are eight monitors at Mogden which monitor sludge gas readings taken throughout the year.

• Sludge gas monitor readings 2012 (0.45Mb)
• Sludge gas monitor readings 2011 (1.92Mb)
• Sludge gas monitor readings 2010 (0.72Mb)

London Borough of Hounslow site inspections

We work very closely with the London Borough of Hounslow's pollution control department to reduce odour from Mogden.

The local Environmental Health Officer is welcome to carry out a site visit whenever they wish.

Following each visit, any observations are sent to the management team at Mogden for review and, when necessary, appropriate actions are taken.

These observations and actions are documented in a joint report, and can be viewed by clicking the links below.

• Hounslow odour inspections - 2012 (0.32Mb)
• Hounslow odour inspections - 2011 (1.33Mb)
• Hounslow odour inspections - 2010 (2.10Mb)
• Hounslow odour inspections - 2009 (0.66Mb)
• Hounslow odour inspections - 2008 (0.60Mb)

Section 106 odour study

An odour study was carried out by Entec as part of a planning obligation (Section 106) for the current extension work at Mogden.

The results were presented at a public meeting on 3 November 2010 and the final report is available to download below.

• Mogden Odour Study - Chapters 1 to 4 (0.68Mb)
• Mogden Odour Study - Chapters 5 to 6 (2.76Mb)
• Mogden Odour Study - Chapter 7 (2.78Mb)
• Mogden Odour Study - Chapter 8 (2.79Mb)
• Mogden Odour Study - Chapters 9 to 13 (3.0Mb)
• Mogden Odour Study - Appendices (3.0Mb)
• Aeration Odour Investigation Programme (0.06Mb)

OdourNet odour surveys

Under our instruction, OdourNet UK Ltd conducted an independent survey in 2008 to assess the effectiveness of our odour control measures. Please click the link below to download the report.

• OdourNet survey - September 2008 (0.16Mb)

 Mosquito awareness campaign

Each year, we work with the London boroughs of Hounslow and Richmond upon Thames on a joint mosquito awareness campaign. Please find our latest advice leaflet below.

• Help to control mosquitoes 2011 (0.74Mb)

Mogden newsletter

We send a newsletter to residents living close to Mogden which provides updates on the latest developments and investments on the site.

• Mogden newsletter - February 2012 (0.30Mb)
• Mogden newsletter - August 2011 (0.35Mb)
• Mogden newsletter - April 2011 (0.73Mb)
• Mogden newsletter - October 2010 (0.66Mb)
• Mogden newsletter - February 2010 (0.75Mb)
• Mogden newsletter - April 2001 to February 2008 (0.46Mb)

How to view PDF files

To view the documents above, you will need a copy of Adobe Reader, which is free to download from Adobe Systems.