This unit applies to enterprise managers and technical design personnel who identify design requirements, determine specifications for drainage systems and design drainage systems.
This unit covers the process of identifying design requirements, determining specifications for drainage systems, and designing drainage systems and defines the standard required to: develop specifications for water transfer, recharge, reuse and harvesting systems; assess the requirements for pumping capacity in a drainage system and power requirements; identify performance indicators for the drainage system; predict volumes and rates of surface run-off and system leakage; design a drainage system that factors in the characteristics of the irrigated landscape and soil.
You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)
Employability Skills
This unit contains employability skills.
Evidence Required
List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to workplace operations and satisfy holistically all of the requirements of the performance criteria and required skills and knowledge and include achievement of the following:
develop specifications for water transfer, recharge, reuse and harvesting systems
assess the requirements for pumping capacity in a drainage system and power requirements
identify performance indicators for the drainage system
predict volumes and rates of surface run-off and system leakage
design a drainage system that factors in the characteristics of the irrigated landscape and soil.
Context of and specific resources for assessment
Competency requires the application of work practices under work conditions. Selection and use of resources for some worksites may differ due to the regional or enterprise circumstances.
Submission Requirements
List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here
Assessment task 1: [title] Due date:
(add new lines for each of the assessment tasks)
Assessment Tasks
Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.
Required skills
collect and analyse information
identify adverse environmental impacts of drainage and appropriate remedial action
identify design requirements
complete hydrological calculations
develop specifications
develop budgets
develop and implement relevant enterprise OHS and environmental procedures
use literacy skills to fulfil job roles as required by the organisation. The level of skill may range from reading and understanding documentation to completion of written reports
use oral communication skills/language competence to fulfil the job role as specified by the organisation including questioning, active listening, asking for clarification, negotiating solutions and responding to a range of views
use numeracy skills to estimate, calculate and record complex workplace measures
use interpersonal skills to work with others and relate to people from a range of cultural, social and religious backgrounds and with a range of physical and mental abilities.
Required knowledge
design processes
developments in drainage technology
leaching fractions and salt movements prediction
monitoring systems
waste management and environmental issues
purpose of leachate interception and dewatering systems
budgeting, contractual development and obligations
environmental impacts of drainage
cost/benefit analysis
enterprise policies and procedures
water transfer, recharge, reuse and harvesting systems.
OHS and environmental protection legislation.
The range statement relates to the unit of competency as a whole.
Irrigation system types may include:
flood
furrow
micro-sprinklers
pop-ups
impact sprinklers
low-level lines
overhead sprinklers
drippers
micro-jets.
Irrigated systems may involve:
water harvesting
delivery
drainage collection
drainage storage and treatment as well as natural drainage and treatment systems involving the removal of pollutants through evaporation, and/or clearance by filtration through surface layers.
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.
Observation Checklist
Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice
Yes
No
Comments/feedback
Water transfer, recharge, reuse and harvesting systems are designed to conserve natural resources.
The process of collecting or storing water does not degrade the water quality for the enterprise or the environment.
Construction specifications define the work required to make suitable water available to the enterprise in accordance with environmental and Occupational Health and Safety (OHS) requirements.
Environmentally sensitive areas are identified and protected according to local, State and National legislation.
Design calculations and decisions are documented to enterprise requirements.
Pumps are selected to move water efficiently when needed to water storage or treatment, at the flow and pressure required to design specifications.
The pump motor combinations are efficient, and the pumps are reliable, functional, serviceable and flexible for the intended application.
Energy requirements are determined, and layout of electricity lines are determined and checked with local authority.
The relationship between capital and operational costs are optimised including a comparison of energy sources.
Structures, valves and accessories are selected and integrated into a functional system that can be monitored and maintained according to enterprise guidelines.
Performance indicators, design calculations and decisions are documented according to enterprise guidelines.
Construction specifications define work required to make suitable pumping and power system available to enterprise.
Power supply design specification is checked with power authorities.
Regional geology and geography is investigated to predict drainage parameters.
Site investigations to assess depth of clay, depth of ground water, soil and water salinity, and structural or chemical impediments are used to determine the most cost effective drainage system.
Predictions of leaching fractions and salt movements are documented, and soil amelioration and drainage management plans are developed.
The need for leachate interception and dewatering system is determined and if required, construction specification prepared for interception and collection, disposal, reuse or recycle.
Drains and structures are capable of carrying the design water volumes and intensities according to enterprise standards.
Damage from water logging is minimised according to enterprise standards.
Hydrological calculations predict volumes and rates of surface run-off according to enterprise standards.
Design calculations and decisions are documented and relevant information is communicated clearly through plans, specifications and manuals.
Design output is checked by a competent designer against enterprise objectives.
Materials requirements are determined and documented from plans and specifications.
Labour requirements are estimated based upon documented work schedule with reasonable allowance for variances in work schedules.
Costing attributed to each component is based upon quoted information from suppliers, or sound analysis of individual elements.
Operating expense budget indicates all expenses applicable to the completed drainage system.
Forms
Assessment Cover Sheet
AHCDRG501A - Design drainage systems
Assessment task 1: [title]
Student name:
Student ID:
I declare that the assessment tasks submitted for this unit are my own work.
Student signature:
Result: Competent Not yet competent
Feedback to student
Assessor name:
Signature:
Date:
Assessment Record Sheet
AHCDRG501A - Design drainage systems
Student name:
Student ID:
Assessment task 1: [title] Result: Competent Not yet competent
(add lines for each task)
Feedback to student:
Overall assessment result: Competent Not yet competent