12 Attachment l Mosquito Management Plan

GLNG

MOSQUITO MANAGEMENT PLAN (Attachment L of CEMP)

Bechtel Confidential

© Copyright Bechtel Oil, Gas and Chemicals, Inc. 2010, 2011. All rights reserved. This document contains confidential and proprietary information of Bechtel Oil, Gas and Chemicals, Inc. Permitted use and disclosure of this document is governed by Contract No. 882540. The contents of this document may not be used, reproduced, or disclosed other than as specified in

Contract No. 882540 without the prior written permission of Bechtel Oil, Gas and Chemicals, Inc.

C 12-Jan-11 GRC Comments Incorporate; Issued for Permit RW CJK JJM CJK BT / AP

B 11-Aug-10 Client Comments Incorporated; Issued for Permit RW CJK JJM CJK BT / AP

A 29-July-10 Issue for Review RW CJK JJM CJK ABP

REV DATE REASON FOR REVISION BY CK’D Const. Mgr

APE PM

BECHTEL OG&C INC. JOB NO. 25501

MOSQUITO MANAGEMENT PLAN DOCUMENT NO. REVISION

100-G01-GHX-00040 C

GLNG Doc No. 3310-BTH-3-3.3-6840

Gladstone LNG Project Mosquito Management Plan

Bechtel Confidential © Copyright Bechtel Oil Gas & Chemicals 2010, 2011. of 6 All rights reserved.

TABLE OF CONTENTS

1 INTRODUCTION ................................................................................................ 3

2 COORDINATION WITH GLADSTONE REGIONAL COUNCIL .......................... 3

3 MOSQUITO CONTROL AND SURVEILLANCE................................................. 3

3.1 Mosquito Surveillance.................................................................................. 4

3.2 Mosquito And Midge Control ....................................................................... 4

3.3 Water Management ..................................................................................... 5

4 RECORDKEEPING ............................................................................................ 6



1 INTRODUCTION This Mosquito Management Plan is Attachment L of the Construction Environmental Management Plan (CEMP) for the Gladstone LNG Project and shall be read and interpreted in conjunction with the CEMP (ref. 25501-100-G01-GHX-00017; GLNG doc. 3310-BTH-3-3.3-6617), in particular section 1.1. This Mosquito Management Plan has been prepared to aid control of disease and mosquito and other insect pests during construction and to meet requirements of the GLNG Environmental Impact Statement (EIS Supplement Section 13.16.5 and Coordinator General’s Report Appendix 4, Part 1, MCU Conditions – LNG Facility, Condition 2). Mosquito control during construction will be performed in cooperation with other mosquito control programs within the Gladstone Regional Council.

1.1 Coordination With Gladstone Regional Council

Larvicide or adulticide chemicals may be used for mosquito control, and the type of chemical will be selected following consultation with the Gladstone Regional Council and following the Mosquito Management Code of Practice for Queensland – 2002. Project representatives will attend industry Mosquito Management Forums conducted by the Gladstone Regional Council and keep the Council informed about pest control activities at project work sites.

2 MOSQUITO CONTROL AND SURVEILLANCE Mosquito control and surveillance will generally follow guidelines established by the State of Queensland (Mosquito Management Code of Practice for Queensland – 2002. Guidelines to Minimise Mosquito and Biting Midge Problems in New Developments, Queensland Health, 2002. Gladstone Regional Council Mosquito Management Plan). A primary goal of those guidelines is control of diseases spread by mosquitoes, particularly dengue fever. The aim of the mosquito control program is to conduct regular surveillance of mosquito occurrence, including identification of mosquito species and estimation of mosquito numbers, and eliminate mosquitos by direct (biological and chemical control) and indirect methods (e.g., wet area modification, proper storage of materials, training of workers). Details of the surveillance program will be determined in cooperation with a local Pest Control subcontractor and in coordination with the Gladstone Regional Council’s surveillance program for the larger area. In general, surveillance at the Curtis Island site will be ongoing and concentrate on areas where personnel are working or living.



Insecticides (adulticides and larvicides applied by or under the direction of a licensed Pest Management Technician) and repellents may be used to supplement breeding site elimination. The Project will monitor health alerts, including dengue fever reports, issued by the State of Queensland and respond to regional mosquito control efforts.

2.1 Mosquito Surveillance

Mosquito surveillance involves inspecting areas for mosquito breeding, including standing water or small cavities where water may be trapped, such as stored tires or pipe. Mosquito traps may also be used to trap adult mosquitoes to establish their species and density. Large numbers of mosquito traps can be used in a surveillance network to locate hotspots of mosquito activity in cooperation with the Gladstone Regional Council surveillance methodology. The surveillance program shall include database maintenance, larval and adult mosquito surveillance (identification of species and numbers estimates), general observations of site water management, and a control assessment.

2.2 Mosquito And Midge Control

The methods used in mosquito elimination involve removal or treatment of containers or standing water that can hold larvae and pupae, possible placement of ‘lure and kill’ mosquito traps, and exterior and interior spraying/fogging to kill adult mosquitoes/insects, taking into account potential impacts on the surrounding environment and human health and safety considerations. Annihilation trapping, whereby the target area is flooded with a high density of lure and kill traps, has proven successful at control in some cases in Queensland. Surveillance surveys will determine what species of mosquitoes are present and control methods will be managed according to the specific mosquito threat. Only persons under the direction of a licensed Pest Management Technician may apply chemicals for mosquito control. The mosquito and biting midge control chemicals are selected for their low-toxicity to humans and wildlife. All surface sprays applied inside premises should be water-based and non-staining and have a very low (if any) level of odor. There are several types of internal sprays, external sprays and external surface sprays that may be used: Internal Sprays

Demand interior spray (Active ingredient: lambda-cyhalothrin 25g/L) (Concentration: 0.8125g/L)

Demand is a chemical that is used in an indoor surface spray and in a spray for potential and actual mosquito breeding containers.

Cislin interior spray (Concentration: 0.075g/L)

Cislin is a chemical which is used in an indoor surface spray and in a spray for potential and actual mosquito breeding containers.



Outdoor Sprays

Prolink container treatment (Active ingredient: s-methoprene 4%).

Prolink is a chemical in pellet form which is placed in potential and actual mosquito breeding containers including roof gutters. Prolink briquets are registered for use in rainwater tanks.

Biflex Aqua mosquito traps and interior spray (Active ingredient: bifenthrin 80g/L) (Concentration: 0.075g/L)

TalstarOne is a chemical which is placed on fabric strips in mosquito traps and used in an indoor surface spray and in a spray for potential and actual mosquito breeding containers.

Outdoor Surface Sprays and Container Treatment

note, where possible all containers will be prevented from holding standing water to prevent mosquito and insect propagation

Mortein Surface Spray or Baygon Surface Spray These are used to spray potential and actual mosquito breeding containers.

Biflex Aqua (Active ingredient: bifenthrin 80g/L) (Concentration: 0.075g/L)

TalstarOne is a chemical which is used in an indoor surface spray and in a spray for potential and actual mosquito breeding containers.

Bifenthrin (Bistar 80SC) Found effective for biting midge control when used around buildings, fences, and vegetation.

Larvicides

s-methoprene A chemical that prevents insect larvae from developing into adults.

Bti Bacillus thuringiensis serovar israelensis (Bti) is a group of bacteria used as biological control agents for larvae stages of mosquitoes and certain other flies.

The control program will not totally eliminate mosquitoes and other insect pests from the job site because many breeding sites exist outside the control of the project. Suitable screens shall be installed on windows of buildings to prevent insects entering inhabited areas. Workers can use insect repellents as necessary on themselves or in their work areas. The extent of insect control will be determined by an on-going assessment of worker tolerance to the nuisance insects that are present as well as the findings of insect surveillance surveys.

2.3 Water Management

Existing man-made ponds on the Curtis Island site will be drained by breeching their berms to allow natural runoff of stormwater. In construction areas, standing water shall be eliminated to the extent possible by the project’s stormwater system whereby water is drained from the site in a controlled manner. Stormwater sediment basins will contain standing water, potentially for many weeks during the wet season, and it will be necessary to treat these basins with insect controls. Any



portion of the stormwater system that is found to be ponding water will be maintained to allow drainage. Areas where standing water may unavoidably occur for long periods, such as a hydrotest water pond, may be treated with larvicide or another method of mosquito control. Proper storage of containers and equipment that might trap stormwater will be practised site wide. The project induction training will inform workers about insect threats and controls that will be practised, including proper storage of containers or materials that could trap stormwater.

3 RECORDKEEPING Records of surveillance survey results and treatment applications will be maintained by HSE staff. The control program will be adapted as necessary per the site-specific data and in cooperation with the greater regional effort.

12 Attachment l Mosquito Management Plan

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