Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:9:p10
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 9 (pt 10/12)
Character Range: 329526–332724

ownership or tenancy is unknown or uncertain.

    3.3.5          Previous activities/uses
A chronological list of land uses should be compiled, focusing on industrial uses or other potentially contaminating activities, and including any periods during which the land use is unknown or uncertain. While 'small tannery' may be seen as an imprecise description, it nonetheless provides some information about the nature, severity and distribution of any potential contamination. Precise industrial capacities of properties should be cited if available. The chronology should include dates when areas of the site were sealed, for example, by concrete slabs, in relation to the occurrence of potentially contaminating activities to prevent unnecessary under-slab sampling, although the potential for the migration of contamination underneath hardstands from adjacent sources will need to be taken into account. Consideration should also be given to uses on adjacent sites that could be a source or receptor of contamination.

    3.3.6          Services to the property (including sewer and underground services)
Site plans showing the location, elevation and size of sewers, stormwater drains and underground utilities (such as communications infrastructure) should be included, as these may assist in identification of preferential contamination migration pathways.

    3.3.7          Previous and present building and structures
These are generally best illustrated by a series of annotated site maps showing the locations of permanent and semi-permanent structures, offices, sheds, reaction vessels, storage tanks, etc. These should be presented in chronological order to show how the site developed. Key building design features such as the nature of foundations, presence or absence of crawl spaces or basements should also be included. The age and nature of buildings and infrastructure should be considered in relation to potential occurrence and distribution of asbestos-containing-materials. Where infrastructure has been decommissioned, the site history should note whether any potentially contaminating contents are known to have been removed (for example, whether tanks and pipelines were drained or simply blocked off).

    3.3.8          Industrial processes carried out on site and the products manufactured
A list should detail the products from the industries and activities identified as being relevant to the site.

    3.3.9          Chemical storage and transfer areas
Locations should be indicated on the scaled site plan and chemicals stored and transferred at each area identified.

    3.3.10      Raw materials used
A list of raw materials stored or used at the site should be compiled. Chemicals should be identified by systematic names as well as common or trade names.

    3.3.11      Intermediate products
These are important in both batch and continuous production processes. Residual reaction components and intermediate products may have been discharged from reaction vessels prior to production runs. Quality assurance procedures may also have included sampling points from intermediate stages in the manufacturing process which may have been allowed to drain away