03 October 2018 Dean Schmidt Alcoa Anglesea Dear Dean Airborne particulate monitoring at the DELWP site in Camp Road, Anglesea prior to and during explosive demolition of the Alcoa Anglesea Power Station boiler structure. Environmental Health Solutions (EHS) carried out real-time atmospheric monitoring of the PM10 and PM2.5 particulate fractions of ambient air at the above site over the described period has been undertaken at the request of Alcoa and the Victorian EPA. PM10 is defined as particulate matter 10 micrometers or less in diameter; PM2.5 is particulate matter 2.5 micrometers or less in diameter. PM2.5 is generally described as fine particles. The National Environment Protection (Ambient Air Quality) Measure 2015 (NEPM) 3 3 documents air quality standards of 50 µg/m averaged over 24 hours for PM10 and 25 µg/m averaged over 24 hours for PM2.5. The results of the PM10 and PM2.5 particulate monitoring during the period potentially impacted by the explosive demolition of the Alcoa Anglesea Power Station boiler structure (essentially between 13:15 and 13:30 hours on Wednesday October 3, 2018) can be compared to the previous results collected when the activity was not occurring, as well as compared with the relevant NEPM standards. The results (attached) indicate that at the monitoring location the measured particulate concentrations were identical before, during and two hours following the explosive demolition. PM10 concentrations over the 24-hour period 15:30 on 2/10/2018 to 15:30 on 3 3 3/10/2018 was 8 µg/m and for PM2.5 for the same period was 7 µg/m . This indicates that the demolition had no measurable impact with regards to dust at the location. Also, of interest, EHS carried out personal airborne asbestos dust monitoring on seven sentries positioned around the demolition site during the detonation. The attached results show no asbestos fibres detected above the detection limit of the method. With regards Paul Ludowyk CIH, Grad Dip Occ Hyg, MAIHA Principal Occupational Hygienist Suite 10/240 Pakington Street, Geelong West, Victoria, 3218 T 1300 856 510 E [email protected] W www.ehsolutions.com.au ABN 68 089 594 916 Environmental Health Solutions Pty Ltd atf Hazard Protection Unit Trust Page | 1 1:15 pm Wednesday Oct 3 2018 Geelong 10/240 Pakington Street, Geelong West, VIC 3218 T 1300 856 510 E [email protected] W www.ehsolutions.com.au Airborne Asbestos Monitoring Report Client Name: Industrial Demolition Services Paul Ludowyk NATA Approved Counter Client Address: 35 Parer Rd, Airport West VIC 3042 Site Name: Alcoa – Anglesea Power Station Site Address: Coalmine Road, Anglesea, Vic 3230 Contractor: Not Applicable Sampled by: Paul Ludowyk Contract No: 22625 Report No: 480 Steve Thomson Approved Signatory Date: 03/10/2018 Period: 08:45 to 13:56 hrs. Personal monitoring of Industrial Demolition Services sentry Filter No. Sample Fibres Fibre Conc employees during explosive demolition works Volume (litres) Counted/Fields (fibres/mL) Sentry Position No.6 B22965 449 0/100 < 0.01 Sentry Position No.4 B22966 448 0/100 < 0.01 Sentry Position No.1 B22967 445 0/100 < 0.01 Sentry Position No.5 B22968 442 0/100 < 0.01 Sentry Position No.3 B22969 438 0/100 < 0.01 Sentry Position No.2 B22970 437 0/100 < 0.01 Sentry Position No.7 B22971 422 0/100 < 0.01 Blank Filter B22972 - 0/100 - Filters: Series A – Millipore 25mm x 0.8µm with Millipore cowls. NATA Accredited Laboratory No: 16765 Series B – Millipore 13mm x 0.8µm with J. Hardie cowls Accredited for compliance with ISO/IEC 17025-Testing. Test Method: In accordance with 2005 NOHSC Guidance Note on the Membrane Filter Method for Estimating Airborne Asbestos Fibres 2nd Edition. (As outlined in EHS Methods 2 & 3). This document should not be reproduced except in full, without written approval of EHS. 22625 Industrial Demolition Services ALCOA Page 1 of 1 Anglesea Air Monitoring Report 480 no names .