July 2025 - Sydney Trains

Site: Bombo Quarry, Panama Street, Bombo, NSW 2533 

Air Quality Monitoring

LicenseeSydney Trains Environment Protection Licence Number 79
Licensees AddressPO Box K349, Haymarket 1238
Air QualityParticulates - Deposited matter
Monitoring frequency required by licenceMonthly
Units of MeasurementGrams per square metre per month 
EPL Identifier Monitoring Point Date Sampled Date Obtained Date PublishedAshInsoluble SolidsLimit 
Point 5F1A11/07/202521/07/202523/07/20250.61.0None specified 
Point 6 F211/07/202521/07/202523/07/2025Null readingNull readingNone specified 
Point 7 F311/07/202521/07/202523/07/20250.91.8None specified 

EPL No 79 'Air' Comments:  Station 'F2' was damaged a second time (vandals) and a reading couldn't be taken for July. The Air Monitoring infrastructure has now been established within a a new security compound at the site and is now recording data for the August measurement.

EPL No 79 'Water' Comments: Pumpouts occurred on 30 June, 14 July and 21 July 2025 (all compliant results). 

Acronyms
(EPL) Environment Protection Licence
Note: Results marked with an * indicate an excessively contaminated gauge. Contamination can include bird droppings, vegetation (such as plant matter, algae, pollen, seeds), and insects.

Site: Bombo Quarry, Panama Street, Bombo, NSW 2533 

Blast Monitoring

LicenseeSydney Trains Environment Protection Licence Number 79
Licensees AddressPO Box K349, Haymarket 1238
Blast MonitoringPeak particle velocity and decibel level
Monitoring frequency required by licenceEach blast
Units of Measurement

Peak Particle Velocity (PPV) - Millimetres per Second 

dB(L) - Decibel 

EPL Identifier Monitoring Unit Date Sampled  Time Sampled  Date Obtained Date Published PPVLimit (8:30am - 5:00pm) Monday to Friday inclusive Limit 5:00pm - 8:30 am Monday to Friday inclusive and weekends or public holidays dB(L)Limit (8:30am - 5:00pm) Monday to Friday inclusive Limit 5:00pm - 8:30 am Monday to Friday inclusive and weekends or public holidays 
Point A442129/07/202510:59:0029/07/202531/07/20258.23100104.601200
Point C 442029/07/202510:59:0029/07/202531/07/20250.440113.301200
EPL Identifier Monitoring Point Date Sampled Time Sampled Date Obtained Date Published PPVLimit (8:30am - 5:00pm) Monday to Friday inclusive Limit 5:00pm - 8:30 am Monday to Friday inclusive and weekends or public holidays dB(L)Limit (8:30am - 5:00pm) Monday to Friday inclusive Limit 5:00pm - 8:30 am Monday to Friday inclusive and weekends or public holidays 
Point K442229/07/202510:59:0029/07/202531/07/20251.5380118.701200
Comments: Blast # 1034 (FigTree Pit - Surface)
Acronyms
(EPL) Environment Protection Licence
(PPV) Peak Particle Velocity
(dB(L)) Decibel