Western Geotechnical & Laboratory Services

Site

Western Geotechnical & Laboratory Services

Accreditation No.

20599

Site No.

24692

Date of Accreditation

08 Jul 2019

Address

97 - 99 Ewing 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

Print scopes
Western Geotechnical & Laboratory Services

ISO/IEC 17025 (2017)

Infrastructure and Asset Integrity

Service Product Determinant Technique Procedure Limitations
Accreditation is held to establish new branch sitesBranch Site: Western Geotechnical South West (Site No: 26265) 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
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 AS 1141.23, MRWA Method WA220.1
Abrasion resistance Los Angeles machine value MRWA Method WA220.2
Evaluation of geotechnical and civil construction material - Aggregate contaminants Aggregates Weak particles contaminants Sieve analysis AS 1141.32
Foreign material in recycled aggregate Manual classification MRWA Method WA144.1
Clay and fine silt Settling AS 1141.33
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
Shape Average least dimension AS 1141.20.1, AS 1141.20.2, MRWA WA215.1
Shape Flakiness AS 1141.15, MRWA Method WA216.1
Bulk density Uncompacted AS 1141.4
Moisture content Drying oven AS 1289.2.1.1, MRWA Method WA212.1
Particle size distribution Sieve analysis AS 1141.11.1, MRWA Method WA210.1
Particle size distribution Sieve analysis of material finer than 75 µm AS 1141.12
Bulk density Compacted AS 1141.4
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 Soluble sulfate Acid extraction AS 1289.4.2.1 Including determination of sulfate content of groundwater
Organic matter Titration AS 1289.4.1.1
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 Linear shrinkage Not applicable AS 1289.3.4.1, MRWA Method WA123.1
Liquid limit Casagrande one point AS 1289.3.1.2
Moisture content Drying oven AS 1289.2.1.1, MRWA Method WA110.1
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 Assignment of optimum moisture content/maximum dry density (OMC/MDD) Not applicable AS 1289.5.4.2
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
Evaluation of geotechnical and civil construction material - Soil dispersion Soils Dispersion Pinhole AS 1289.3.8.3
Dispersion Emerson class AS 1289.3.8.1
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
Compaction control Hilf AS 1289.5.7.1
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
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.
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.
DSL Haul Road Repairs 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 DSL Haul Road Repairs Project Annex Facility, Site No. 27480 is established from 14 May 2026 until 14 November 2026 for DSL Port Hedland Crystallized Precinct - Haul Road Repairs, Contractor: North West Mining Civil, Contract No.: PO: 73753.
Determinations defined by all or some for which the site is accredited Techniques defined by all or some for which the site is accredited DSL Haul Road Repairs Project Annex Facility, Site No. 27480 is established from 14 May 2026 until 14 November 2026 for DSL Port Hedland Crystallized Precinct - Haul Road Repairs, Contractor: North West Mining Civil, Contract No.: PO: 73753.
GNH Shoulder Works Project 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 GNH Shoulder Works Project Annex Facility, Site No 27464 is established from 1 May 2026 until 1 December 2026 for GNH Shoulder Works Project, Contractor: Raubex Construction, Contract No.: PO RC29697.
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.
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.

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