Unit of competency Outline

Date retreived
22/07/2026 11:28 PM AWST

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Perform sampling and testing of contaminated sites

Perform sampling and testing of contaminated sites

Unit of competency
National Code
MSS025014A
State Code
D7709
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
18/07/2011
State Implementation and Classification
Approved Date
28/11/2013
Field of Education
050999 - Environmental Studies, N.e.c.
Original Release Date
28/11/2013
Nominal Hours
80
Description
This unit of competency covers the ability to collect samples and conduct field tests/measurements while working safely in a (potentially) hazardous environment. Personnel work under the close supervision of environmental scientists or engineers and use established site health and safety plans and sampling/field testing procedures. They are required to continually monitor levels of risk and use prescribed safe working procedures and safety equipment. The specific details of sampling and field testing for groundwater and soils are covered in other relevant units. Details for other samples, such as surface water, air and radiation are covered in the units listed in the Context of Assessment.
Notes
Elements and Performance Criteria
1 Assist with preliminary site study
  • 1.1 Locate and review relevant legislative, regulatory and/or planning requirements and register for contaminated sites
  • 1.2 Confirm the site location, scope and purpose of the investigation and assigned tasks with supervisor
  • 1.3 Source and review available site data, including site history, geology, hydrogeology and meteorological data
  • 1.4 Summarise information to assist with preparation of a site chronology and identification of gaps or inadequacies in data, potential contaminants and areas of possible contamination
2 Prepare for site activities
  • 2.1 Confirm the scope and purpose of sampling, testing and/or monitoring activities and data requirements with supervisor
  • 2.2 Liaise with site controller to access site, identify locations of services and arrange for induction, clearances and/or permits, as necessary
  • 2.3 Review risks posed by site contaminants and review the health and safety plan and safe work procedures specified for planned activities
  • 2.4 Confirm the sampling/test methods, sampling/test points, numbers and types of samples and/or measurements with supervisor
  • 2.5 Review specified sampling/test methods with close attention to the sequence of steps and details for each
  • 2.6 Check the operation/calibration of required sampling equipment, test and/or monitoring instruments in accordance with relevant methods, standards and manufacturer instructions
  • 2.7 Check the operation/calibration of required sampling equipment, test and/or monitoring instruments in accordance with relevant methods, standards and manufacturer instructions
  • 2.8 Ensure all required reagents, solutions and/or calibration standards are obtained and ready for field use
  • 2.9 Assemble and safely stow all sampling equipment, test instruments, materials, containers, safety equipment and personal protective equipmentArrange suitable transport to, from and around site as required
3 Assist with site inspection
  • 3.1 Sketch, map and/or photograph the site features
  • 3.2 Conduct a visual inspection to identify site features that may inform the need for and design of subsequent investigations
  • 3.3 Collect preliminary samples, as directed, to help characterise possible contamination hazards prior to detailed investigations
4 Conduct sampling as directed
  • 4.1 Locate sampling/test points and any services at the site
  • 4.2 Work effectively with other site personnel during drilling excavation and/or survey operations to collect reliable samples, logs and measurements, as necessary
  • 4.3 Follow specified procedures to minimise hazards and/or contamination of samples, self/others, equipment and environment
  • 4.4 Collect and preserve required samples in accordance with sampling plan, relevant methods and/or standards
  • 4.5 Record all information and label samples in accordance with traceability requirements
  • 4.6 Record environmental conditions and/or atypical observations made during sampling that may impact on validity or integrity of samples
  • 4.7 Store and transport all samples back to base in accordance with specified method, chain of custody requirements and relevant codes
5 Conduct field tests and/or monitoring as directed
  • 5.1 Obtain sample or sub-sample for designated field test
  • 5.2 Check that all equipment, instruments, reagents and calibration standards are fit for purpose
  • 5.3 Set up and calibrate instruments as necessary to ensure safe operation and valid results
  • 5.4 Operate equipment/instruments in accordance with test method requirements
  • 5.5 Follow specified procedures to minimise hazards and/or contamination of samples, self/others, equipment and environment
  • 5.6 Perform required measurements and tests on all samples and standards, if appropriate, in accordance with specified methods
  • 5.7 Keep accurate, complete and traceable records of all field observations and test results
6 Clean, decontaminate and/or dispose of contaminated equipment and materials
  • 6.1 Inspect equipment to assess the degree of contamination
  • 6.2 Use specified procedures to remove material from the exposed outer surfaces of sampling/test equipment and personal protective equipment
  • 6.3 Use specified procedures and reagents to neutralise, wash and/or rinse exposed surfaces
  • 6.4 Collect rinsate blanks for analysis and preserve/store in accordance with specified procedure or standard
  • 6.5 Stow items for transport only when thoroughly dry
  • 6.6 Safely collect all debris and sullage from decontamination in accordance with relevant regulations and codes
7 Finalise site activities
  • 7.1 Arrange for the safe disposal of all hazardous wastes in accordance with relevant regulations and codes
  • 7.2 Ensure all site observations, sampling/test data and results are accurately transferred to the enterprise information management system
  • 7.3 Store samples in accordance with method, chain of custody requirements and relevant codes, as necessary
  • 7.4 Ensure samples are dispatched for analytical testing within recommended holding times
8 Process and interpret data
  • 8.1 Review test/monitoring data noting atypical observations
  • 8.2 Calculate required quantities using relevant test method and ensure values are consistent with expectations
  • 8.3 Estimate and document uncertainty of measurement in accordance with enterprise procedures, if required
  • 8.4 Record processed results in accordance with enterprise procedures
  • 8.5 Interpret trends in data and/or results and report atypical results promptly to appropriate personnel
  • 8.6 Determine if obvious procedure or equipment problems have led to atypical data or results
  • 8.7 Compare results with established threshold levels or environmental quality concentration limits, if relevant
  • 8.8 Finalise reporting of results in accordance with enterprise requirement
9 Maintain a safe work environment
  • 9.1 Clean all equipment, containers, work area and vehicles according to enterprise procedures
  • 9.2 Check serviceability of all equipment before storage
  • 9.3 Use defined safe work practices and personal protective equipment to ensure personal safety and that of others
  • 9.4 Minimise the generation of wastes and environment impacts
Codes of practice
Where reference is made to industry codes of practice, and/or Australian/international standards, it is expected the latest version will be used
Legislation, standards, codes, procedures and/or enterprise requirements
Legislation, standards, codes, procedures and/or enterprise requirements may include:
federal legislation, such as
Environment Protection and Biodiversity Conservation Act 1999
state/territory government legislation and regulations and local government by-laws, policies, and plans dealing with:
land use, acquisition, planning and protection
environmental protection
pollution and contaminated sites
Australian and international standards, such as:
AS ISO 14050:1999 Environmental management - Vocabulary
AS/NZS ISO 14000 Basic Set:2007 Environmental Management Basic Set
AS 4482.1:2005 Guide to the investigation and sampling of sites with potentially contaminated soil - non-volatile and semi-volatile compounds
AS 4482.2:1999 Guide to the investigation and sampling of sites with potentially contaminated soil - volatile substances
guidelines such as:
National Environment Protection Measure Assessment of Site Contamination - Schedule B (2) Guideline on data collection, sample design and reporting
enterprise sampling and monitoring protocols
equipment manuals and warranties, supplier catalogue and handbooks
government policy (e.g. environmental protection and impact assessment)
material safety data sheets (MSDS)
occupational health and safety (OHS) national standards and codes of practice
site-specific requirements
Site information and sources
Site information may include:
location of site, property details, and current and proposed use
site history details, such as:
site plans, zoning and adjacent land use
current and previous present owners, occupiers, users and contaminating uses/activities
current and previous buildings and structures
site industrial processes, raw materials, products, wastes/discharges and waste disposal locations
product spills/losses, incidents and accidents
sewer and other utilities/services, plans and previous power sources
chemical storage and transfer areas
earth moving activities
interviews, consultations and complaints
Sources of information may include:
government departments, such as:
environment, environmental protection, conservation, primary industry, water resources, lands and survey, and planning
agencies, such as:
Bureau of Meteorology
Geoscience Australia
libraries and environmental data sets
companies and employees, community representatives and historical societies
Visual inspection of the site
A visual inspection of the site may include:
current uses of site
disturbed, coloured or stained soil, and bare soil patches
disturbed or distressed vegetation
unusual odour
quality of surface water and surface water drainage
condition of buildings, floors and roads
presence of chemical containers and holding tanks
presence of fill, containment areas, sumps, drains, landfill, and obvious surface hazards, such as asbestos
underground structures that may be associated with sub-surface contamination
condition of materials storage/handling facilities, and solid/liquid waste disposal areas
evidence of off-site migration, on-site spillage of dangerous goods, and staining/sheens on surface water
Scope and purpose of sampling, field tests and/or monitoring
Scope and purpose of sampling, field tests and/or monitoring may include:
determining nature of contamination
determining concentration and distribution of contamination
identifying types and concentrations of contaminants for assessing potential exposure levels/risks
monitoring site conditions to check licence compliance or determine need for remedial action
rapid analysis of samples that may change between collection and analysis
rapid sample analysis during remediation activities
determining if clean-up has been achieved
screening of samples in the field
Samples
Samples may include:
air, soil gases and dust
soils
surface water and groundwater
radiation
replicates, field and trip (transport) blanks, rinsate blanks and background samples
Field tests and monitoring
Field tests and monitoring may include:
soil profile measurements and depth of fill
measurement of bores and water depth
screening of gas/vapours, soil and water samples using:
colour and texture
bioluminescence/toxicity test kits
colorimetric methods and dye shake tests
pH, electrical conductivity, redox potential, temperature, dissolved oxygen and ammonia concentration
photoionisation detectors (PID)
flame ionisation detectors (FID)
gas detectors
portable infrared analysers for methane and carbon monoxide (CO)
portable X-ray fluorescence spectrum analyses
field gas chromatography
measurement of radiation
Hazards/risks
Hazards/risks may include:
solar radiation, dust and noise
exposure to contaminants, such as chemicals, biohazards and radiation
working on uneven surfaces and in confined spaces
manual handling of heavy objects
crushing, entanglement and cuts associated with moving machinery and hand tools
heavy vehicle traffic on site
Safety procedures and equipment
Safety procedures may include:
preparation/approval of site health and safety plan for sampling/testing, and safe work permits/approvals
use of safe work method statements, site safety induction, risk cards, ‘step back’ and safety checks
use of (disposable) personal protective equipment
ensuring two persons are present
monitoring of atmosphere for hazardous gases
working upwind of known contaminants
prohibition of eating, drinking and smoking
decontamination facilities, procedures and materials for plant, equipment and personnel
safe collection and disposal of hazardous waste
careful handling of glass containers
separation of heavy equipment into smaller units/cases for transport
reporting procedures for safety problems
emergency procedures, access for emergency vehicles
regular medical checks
Safety equipment may include:
personal protective equipment, such as boots, helmets, gloves, eye and ear protection, overalls, face masks and filters, respirators, encapsulated suits, safety harness and safety torches
gas monitors, gas detectors, personal monitors, environmental monitors and radiation dosimeters
communication equipment (e.g. two-way radio and mobile phone)
materials safety data sheets (MSDS)
first aid equipment
OHS and environmental management requirements
OHS and environmental management requirements:
all operations must comply with enterprise OHS and environmental management requirements, which may be imposed through state/territory or federal legislation - these requirements must not be compromised at any time
all operations assume the potentially hazardous nature of samples and consumables, and require standard precautions to be applied
where relevant, users should access and apply current industry understanding of infection control issued by the National Health and Medical Research Council (NHMRC) and State and Territory Departments of Health
Overview of assessment
Competency must be demonstrated in the ability to perform consistently at the required standard.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessors must be satisfied that the candidate can competently and consistently apply the skills covered in this unit of competency in new and different situations and contexts. Critical aspects of assessment and evidence include:
demonstrating an understanding of the legislative, regulatory and planning requirements for contaminated sites
using accurate terminology to describe common contaminants and sampling/test/safety equipment
interpreting and applying site sampling/monitoring plans, sampling/test methods and standards, health and safety plans, and safe work method statements
observing site features accurately and recognising hazards
operating, maintaining and/or calibrating sampling and test equipment to obtain reliable samples and produce consistently valid and accurate results
interpreting gross features of data, identifying atypical results and making relevant conclusions
calculating results using appropriate units/precision
providing accurate, complete records of sampling and test observations, data and results
working safely for the protection of self and others
following relevant legislative/regulatory requirements for the disposal of waste and the preservation of the environment.
Context of and specific resources for assessment
This unit of competency is to be assessed in the workplace or a simulated workplace environment.
Assessment should emphasise a workplace context and procedures found in the candidate’s workplace.
This unit of competency may be assessed with:
MSS024006A Perform sampling and testing of water
MSS025006ACollect and evaluate groundwater data
MSS025007APerform sampling and testing of soils
MSS025009A Perform sampling and testing of air
PSPRAD707A Monitor radiation.
The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team.
Resources may include:
vehicles
safety procedures, safe work methods, sampling and test methods, standards and equipment manuals
appropriate sampling containers sampling/test equipment, analysers, reagents and gases
specified safety equipment, decontamination equipment and reagents
digital camera
global positioning system (GPS), logbooks and data loggers, and computers.
Method of assessment
The following assessment methods are suggested:
inspection of samples collected by the candidate
review of measurements, test results, calculations and observations produced by the candidate
review of sampling/test records and reports completed by the candidate
feedback from supervisor about the candidate’s ability to consistently apply enterprise procedures and work safely
oral and written questioning to check the candidate’s understanding of the principles of sampling/testing of contaminated sites, operation of sampling equipment, test instruments/analysers and processing of data
observation of the candidate performing a range of sampling and testing tasks.
In all cases, practical assessment should be supported by questions to assess underpinning knowledge and those aspects of competency which are difficult to assess directly.
Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability.
The language, literacy and numeracy demands of assessment should not be greater than those required to undertake the unit of competency in a work-like environment.
Guidance information for assessment
Replaced By
State Code National Code Title Type
BAK70 MSS025014 Perform sampling and testing of contaminated sites Unit of competency