2020 COMMENTS

COMMENTS 14/7/20

Work has continued in the property at the monitor location which has resulted in some loss of data due to power loss and subsequent access difficulties.  It was however possible to restore power to enable monitoring of the Olefins 6 start up.  A suggestion of flare instability was detected by the monitor (audio on web site).  This should be noted and guarded against in view of past experiences with a Calidus flare tip.

Overall the data this year is showing an increase of several dB at Lazenby but this is most likely due to the limited data, adverse weather and the Olefins shutdown rather than any underlying trend.

COMMENTS 8/6/2020

Lazenby monitor was returned to service on 19th May following repairs due to vandalism and a full calibration.  It has performed satisfactorily since then.  Data for April has however been discarded due to microphone damage caused by the air rifle attack. 

The distribution curves show an increase in noise levels for the year to date but this is not necessarily significant inview of the limited data acquired due to the various disruptions.

Unfortunately there will be further disruption to the monitoring as the power supply is located in an outhouse which is being refurbished to form an extension to the property.  Work is expected to start in 7 - 10 days.

COMMENTS 29/3/2020

The Lazenby monitor is now operational after outage due to landscaping work at 9 Wilton Green which was extended by adverse weather conditions during January and February.  There is still outstanding work to carry out to relocate the instrument boxes - awaiting special cabling from the US.  Relocation will be followed by 'boxing in' both to provide a secure housing for the instruments and also to improve the aesthetics of the installation.

Some communication problems are being experienced which are believed to be the result of stress on the mobile networks as a result of Covid19.  At the moment incident audio data is not being transmitted and attempts to rectify this via remote operation have failed due to a dropped connection.  There is a concern that a dropped connection during remote operation might cause a complete communication failure.

Due to the monitor outage and adverse weather the noise data is too limited for the analysis charts to be fully representative but there is no evidence to suggest any change in the Lazenby noise environment.