Range Environmental Consultants - Toowoomba and Brisbane

Amendment to Site Management Plan

23A Pty Ltd

Address: 141 Anton Road, Hemmant
Job Type: Contaminated Land

Sector: Private

Completion date: July 2018

Used investigation findings to amend the prescribed management measures in a SMP held across they site by DES.
Provided more development opportunities for the client whilst ensuring that adequate protection of human health and the environment was maintained.

Table 1 of the Queensland Auditor Handbook for Contaminated Land – Module 5 (DEHP, 2015);
Technical Note: Investigation of Service Station Sites. NSW Environmental Protection Agency (NSW EPA, 2014);
Environmental Protection Act 1994.
Suitably Qualified Person under the Environmental Protection Act 1994;
National Environment Protection (Assessment of Site Contamination) Measure (Amendment No, 1 2013) 1999
AS 4482.1-2005: Guide to Sampling and Investigation of Potentially Contaminated Soil (Part 1: Non-volatile and Semi-volatile Compounds)
AS 4482.2-1999: Guide to Sampling and Investigation of Potentially Contaminated Soil (Part 2: Volatile Compounds)

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Range Environmental Consultants investigated a site in Hemmant and demonstrated that prescribed management measures included in a Site-based Management Plan (SMP) held across the site by DES could be amended to be more commensurate with the level of risk presented by contamination at the site.

The site had a long history of use by potentially contaminating activities, including petroleum storage in an AST during WW2, extensive filling by dredge soil from Aquarium Passage, outdoor abrasive blasting, marine maintenance activities and industries and uncontrolled filling. The site was listed on the EMR for Notifiable Activity 29 (petroleum product or oil storage) and for Radioactive Contaminant.

A detailed soil and groundwater sampling and analysis program was undertaken that targeted high risk areas at the site, including those identified in the detailed site history and land use analysis. The findings of the program were used to inform management measures that adequately managed the risk that onsite contamination presented to human health and to the environment, including the adjoining Brisbane River (as an offsite sensitive receptor).

The client was concerned that existing prescribed management measures in the SMP were going to prohibit development at the site. By reducing the management obligations, Range Environmental Consultants provided more development opportunities for the client whilst ensuring that adequate protection of human health and the environment was maintained.