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Western Geotechnical & Laboratory Services

Site

Western Geotechnical & Laboratory Services

Accreditation No.

20599

Site No.

24692

Date of Accreditation

08 Jul 2019

Address

235 Bank Street
Welshpool, WA 6106
Australia

Contact

Mr Matthew van Herk P: +61 (08) 94723465

Availability

Services available to external clients

Western Geotechnical & Laboratory Services address map

Scope of Accreditation

Western Geotechnical & Laboratory Services

ISO/IEC 17025 (2017)

Infrastructure and Asset Integrity

Service	Product	Determinant	Technique	Procedure	Limitations
Establishment of annex facilities	Materials defined by all or some for which the site is accredited	Determinations defined by all or some for which the site is accredited	Techniques defined by all or some for which the site is accredited
Evaluation of geotechnical and civil construction material - Aggregate abrasion	Aggregates	Abrasion resistance	Los Angeles machine value	MRWA Method WA220.2
		Abrasion resistance	Los Angeles machine value	AS 1141.23, MRWA Method WA220.1
Evaluation of geotechnical and civil construction material - Aggregate contaminants	Aggregates	Clay and fine silt	Settling	AS 1141.33
		Weak particles contaminants	Sieve analysis	AS 1141.32
		Foreign material in recycled aggregate	Manual classification	MRWA Method WA144.1
Evaluation of geotechnical and civil construction material - Aggregate properties	Aggregates	Shape	Proportional calliper	AS 1141.14
		Particle density of fine aggregate	Weighing-in-water	AS 1141.5
		Particle density of coarse aggregate	Weighing-in-water	AS 1141.6.1
		Particle size distribution	Sieve analysis of material finer than 75 µm	AS 1141.12
		Moisture content	Drying oven	AS 1289.2.1.1, MRWA Method WA212.1
		Bulk density	Compacted	AS 1141.4
		Bulk density	Uncompacted	AS 1141.4
		Particle size distribution	Sieve analysis	AS 1141.11.1, MRWA Method WA210.1
		Shape	Average least dimension	AS 1141.20.1, AS 1141.20.2, MRWA WA215.1
		Shape	Flakiness	AS 1141.15, MRWA Method WA216.1
Evaluation of geotechnical and civil construction material - Concrete, grout and mortar chemical tests	Concrete, grout and mortar	Chloride level in hardened concrete; Sulfate level in hardened concrete	Nitric acid	AS 1012.20.1
Evaluation of geotechnical and civil construction material - Concrete, grout and mortar consistence in situ	Concrete, grout and mortar	Slump flow	Cone; J-ring; T500	AS 1012.3.1, AS 1012.3.5
Evaluation of geotechnical and civil construction material - Concrete, grout and mortar properties	Concrete, grout and mortar	Compressive strength	Cube; Cylinder	AS 1012.9
		Mass per unit volume - Hardened concrete	Dimensions	AS 1012.12.1
Evaluation of geotechnical and civil construction material - Concrete, grout and mortar specimen manufacture and curing	Concrete, grout and mortar	Specimen manufacture and curing	Curing cylinder specimens in the laboratory; Curing grout and mortar cube specimens in the laboratory; In situ manufacture and curing of cylindrical specimens; In situ manufacture and curing of grout and mortar cubes	AS 1012.8.1, AS 1012.8.3
Evaluation of geotechnical and civil construction material - Soil chemical properties	Soils	Organic matter	Titration	AS 1289.4.1.1
		Soluble sulfate	Acid extraction	AS 1289.4.2.1	Including determination of sulfate content of groundwater
		Chloride; Salts - Total dissolved	Saturation extract	MRWA Method WA910.1	Including determination of chloride and soluble salts in water
		Organic matter	Loss on ignition (LOI)	ASTM D2974 Method A
		Calcium carbonate content	Not applicable	MRWA Method WA915.1
		Chloride	Titration	TfNSW TS 02811.10
Evaluation of geotechnical and civil construction material - Soil classification	Soils	Moisture content	Drying oven	AS 1289.2.1.1, MRWA Method WA110.1
		Liquid limit	Casagrande one point	AS 1289.3.1.2
		Linear shrinkage	Not applicable	AS 1289.3.4.1, MRWA Method WA123.1
		Sieve analysis	Not applicable	AS 1289.3.6.1, MRWA Method WA115.1, MRWA Method WA115.2
		Plasticity index	Casagrande	AS 1289.3.3.1, MRWA Method WA122.1
		Liquid limit	Cone four point	AS 1289.3.9.1, MRWA Method WA120.2
		Liquid limit	Cone one point	AS 1289.3.9.2
		Liquid limit	Casagrande four point	AS 1289.3.1.1, MRWA Method WA120.1
		Plastic limit	Not applicable	AS 1289.3.2.1, MRWA Method WA121.1
		Plasticity index	Cone	AS 1289.3.3.2, MRWA Method WA122.1
		Particle density	Not applicable	AS 1289.3.5.1
Evaluation of geotechnical and civil construction material - Soil compaction characteristics	Soils	Dry density/moisture content relationship	Modified compactive effort	AS 1289.5.2.1, MRWA Method WA133.1, MRWA Method WA133.2
		Dry density/moisture content relationship	Standard compactive effort	AS 1289.5.1.1, MRWA Method WA132.1, MRWA Method WA132.2
		Assignment of optimum moisture content/maximum dry density (OMC/MDD)	Not applicable	AS 1289.5.4.2
Evaluation of geotechnical and civil construction material - Soil dispersion	Soils	Dispersion	Emerson class	AS 1289.3.8.1
		Dispersion	Pinhole	AS 1289.3.8.3
Evaluation of geotechnical and civil construction material - Soil electrical properties	Soils	Electrical resistance	Not applicable	AS 1289.4.4.1
Evaluation of geotechnical and civil construction material - Soil field density	Soils	Dry density ratio	Calculation	AS 1289.5.4.1, MRWA Method WA134.1
		Moisture ratio	Measured	AS 1289.5.4.1, MRWA Method WA136.1
		Dry density ratio	Statistical selection of reference values	MRWA Method WA134.1
		Moisture ratio	Statistical selection of reference values	MRWA Method WA136.1
		Density - In situ	Nuclear gauge	AS 1289.5.8.1, MRWA WA324.2
		Compaction control	Hilf	AS 1289.5.7.1
Evaluation of geotechnical and civil construction material - Soil fine particles	Soils	Fine particle analysis	Hydrometer	AS 1289.3.6.3
Evaluation of geotechnical and civil construction material - Soil in situ penetration	Soils	Penetration - In situ	Dynamic cone; Perth sand penetrometer	AS 1289.6.3.2, AS 1289.6.3.3
Evaluation of geotechnical and civil construction material - Soil laboratory bearing properties	Soils	Compressive strength	Uniaxial maximum dry	MRWA Method WA140.1
		Bearing ratio	Remoulded specimens	AS 1289.6.1.1, MRWA Method WA141.1
Evaluation of geotechnical and civil construction material - Soil natural contaminants	Soils	Acidity	pH	AS 1289.4.3.1
Evaluation of geotechnical and civil construction material - Soil permeability	Soils	Permeability	Falling head for a remoulded specimen	AS 1289.6.7.2
		Permeability	Constant head for a remoulded specimen	AS 1289.6.7.1
Evaluation of geotechnical and civil construction material - Soil pre-treatment	Soils	Soil pre-treatment	Not applicable	AS 1289.1.1; MRWA Method WA105.1
Evaluation of geotechnical and civil construction material - Soil stabilisation	Soils	Compressive strength	Uniaxial unconfined	MRWA Method WA143.1
Sample collection	Aggregates	Not applicable	Aggregate from a stockpile	AS 1141.3.1 clauses 8.4.3, 9.3, 9.4, MRWA Method WA200.1
	Concrete, grout and mortar	Not applicable	Fresh concrete from a mixer; Fresh concrete from deposited concrete	AS 1012.1
	Soils	Not applicable	Site selection - Random stratified sampling	AS 1289.1.4.2; MRWA Method WA100.1
		Not applicable	Site selection - Random sampling	AS 1289.1.4.1; MRWA Method WA0.1
		Not applicable	Disturbed sampling from earthwork; Disturbed soil sampling from a face; Disturbed soil sampling from a pavement; Disturbed soil sampling from a stockpile; Disturbed soil sampling from a windrow; Disturbed soil sampling in situ	AS 1289.1.2.1; MRWA Method WA100.1

CBH Mingenew Expansion Annex

ISO/IEC 17025 (2017)

Infrastructure and Asset Integrity

Service	Product	Determinant	Technique	Procedure	Limitations
Annex facility	Materials defined by all or some for which the site is accredited	Determinations defined by all or some for which the site is accredited	Techniques defined by all or some for which the site is accredited	CBH Mingenew Expansion Annex Facility, Site No 27416 is established from 16 March 2026 until 16 October 2026 for CBH Mingenew Expansion Project, Contractor: WCP Civil Pty Ltd, Contract No.: PO-2-23000003.

CBH Munglinup Access Widening Annex Facility

ISO/IEC 17025 (2017)

Infrastructure and Asset Integrity

Service	Product	Determinant	Technique	Procedure	Limitations
Annex facility	Materials defined by all or some for which the site is accredited	Determinations defined by all or some for which the site is accredited	Techniques defined by all or some for which the site is accredited	CBH Munglinup Access Widening Annex Facility, Site No 27191 is established from 4 February 2026 until 26 April 2026 for CBH Munglinup Access Widening project, Contractor: WCP Civil, Contract No.:2-22230005.

Christmas Island Geotechnical Laboratory Annex

ISO/IEC 17025 (2017)

Infrastructure and Asset Integrity

Service	Product	Determinant	Technique	Procedure	Limitations
Annex facility	Materials defined by all or some for which the site is accredited	Determinations defined by all or some for which the site is accredited	Techniques defined by all or some for which the site is accredited	Christmas Island Geotechnical Laboratory Annex, Site No 27295 is established from 1 December 2025 until 31 July 2026 for Christmas Island Geotechnical Laboratory, Contractor: Jacobs, Contract No.: PO 540004266.

Granny Smith TSF 4 Annex Facility

ISO/IEC 17025 (2017)

Infrastructure and Asset Integrity

Service	Product	Determinant	Technique	Procedure	Limitations
Annex facility	Materials defined by all or some for which the site is accredited	Determinations defined by all or some for which the site is accredited	Techniques defined by all or some for which the site is accredited	Granny Smith TSF 4 Annex Facility, Site No 27402 is established from 16 March 2026 until 16 October 2026 for Granny Smith TSF 4 Soil Testing Project, Contractor: Lambron Contracting, Contract No.: PO-0390.

Greatland Havieron Boxcut Tunnel Annex Facility

ISO/IEC 17025 (2017)

Infrastructure and Asset Integrity

Service	Product	Determinant	Technique	Procedure	Limitations
Annex facility	Materials defined by all or some for which the site is accredited	Determinations defined by all or some for which the site is accredited	Techniques defined by all or some for which the site is accredited	Greatland Havieron Boxcut Tunnel Annex Facility, Site No. 27341 is established from 28 December 2025 until 31 August 2026 for Greatland Havieron Boxcut Tunnel, Contractor: MLG Oz, Contract No.: 702-2115-CV.

MLG Oz Abra Project Annex Facility

ISO/IEC 17025 (2017)

Infrastructure and Asset Integrity

Service	Product	Determinant	Technique	Procedure	Limitations
Annex facility	Materials defined by all or some for which the site is accredited	Determinations defined by all or some for which the site is accredited	Techniques defined by all or some for which the site is accredited	MLG Oz - Abra Project Annex Facility, Site No 27431 is established from 1 April 2026 until 1 October 2026 for MLG Oz - Abra Project, Contractor: MLG Oz, Contract No.: COCV 439890.

Mt Holland Lithium Project Annex Facility

ISO/IEC 17025 (2017)

Infrastructure and Asset Integrity

Service	Product	Determinant	Technique	Procedure	Limitations
Annex facility	Materials defined by all or some for which the site is accredited	Determinations defined by all or some for which the site is accredited	Techniques defined by all or some for which the site is accredited	Mt Holland Lithium Project Annex Facility, Site No 27378 is established from 10 February 2026 until 10 May 2026 for Tailings Storage Facility 1 - Stage 3 Construction Project, Contractor: JRM Resources, Contract No.: PO 00030430.

Yandi MGD5 Diversion Drain Project Annex Facility

ISO/IEC 17025 (2017)

Infrastructure and Asset Integrity

Service	Product	Determinant	Technique	Procedure	Limitations
Annex facility	Materials defined by all or some for which the site is accredited	Determinations defined by all or some for which the site is accredited	Techniques defined by all or some for which the site is accredited	Yandi MGD5 Diversion Drain Project Annex Facility, Site No 27342 is established from 12 January 2026 until 12 September 2026 for Yandi MGD5 Diversion Drain Project, Contractor: MundaMurra Projects, Contract No.: PO-119.

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