Elements and Performance Criteria
- Determine design requirements
- 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.
- Define pumping and power systems
- 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.
- Design a drainage system
- 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.
- Determine capital expense budget
- 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.
- Determine operating expense budge