Local Government Engineering & Infrastructure Solutions

Engineered Efficiency supports Local Governments with practical engineering, water, wastewater, irrigation, and infrastructure solutions tailored to public assets, community facilities, and operational needs. Local governments require reliable, compliant, and practical engineering to maintain community infrastructure, improve public safety, and support long-term asset performance. Our work helps councils improve service reliability, manage environmental risks, and deliver sustainable outcomes for their communities.

Our capabilities & skills:

Engineered Efficiency offers a comprehensive range of investigation, design, optimisation, and delivery support services tailored to local government infrastructure and water-related assets:

  • Water & Wastewater: System upgrades, filtration, treatment, pressure main and gravity sewer design, and water quality improvement.

  • Environmental & Compliance: Water quality testing, environmental risk assessment, utility/authority approvals (such as Water Corporation standards), and septic/ATU decommissioning methodologies.

  • Hydraulic Modelling: System integration, environmental hydraulic modeling, and detailed pressurised and gravity wastewater network modelling.

  • Electrical & Control Systems: Control panel replacements, HMI platform upgrades, and wastewater pump station automation (including duty/standby macerating pump arrangements).

  • Irrigation & Water Re-Use: Sustainable planning, water re-use strategy, and asset integration.

  • Asset Management & Civil Works: Public infrastructure reliability, safety upgrades, site surveys, service locating, asset renewal, commissioning, testing support, and long-term sustainability reviews.

Local Government Case Studies

Case Study 1: City of Cockburn – Water Play Infrastructure Upgrade

Engineered Efficiency supported the City of Cockburn with the replacement of a heavily corroded electrical enclosure and HMI system at the Cockburn Central Water Play area. The ageing equipment had become unreliable and required renewal to maintain safe and dependable operation of this public asset.

Improvements & Solutions Implemented:

  • Enclosure Replacement: Complete replacement of the existing corroded electrical enclosure.

  • HMI Upgrade: Transfer and upgrade of the HMI interface to a newer, more reliable platform.

  • Commissioning & Testing: Reconnection, installation, commissioning, and testing of the replacement panel.

  • Asset Reliability: Improved long-term reliability and maintainability of critical public water play infrastructure.

Case Study 2: City of Bayswater – Lake Brearley Water Quality & Hydraulic Integration

Engineered Efficiency was engaged by the City of Bayswater to assess whether Lake Brearley could be integrated into the adjacent golf course irrigation system. The project required a detailed review of water quality, environmental risk, and hydraulic performance to determine whether the lake could be sustainably used as part of the irrigation supply.

Investigations & Solutions Completed:

  • Water Quality Testing: Comprehensive water sampling and laboratory analysis for heavy metals, pathogens, salinity, and turbidity.

  • Environmental Health Assessment: Evaluation of environmental health and suitability for active irrigation use.

  • System Optimisation: Review of the existing filtration system to identify performance limitations and recommend key upgrades.

  • Hydraulic Modelling: Development of an environmental hydraulic model to simulate lake behaviour, seasonal variation, hydrological fluxes, and constituent mass flows.

  • Risk Analysis: Assessment of ecological and operational risks associated with rerouting water through the lake system.

Case Study 3: Shire of Capel – Wastewater System Changeovers (Dalyellup Sports Pavilion & Boyanup Lions Park)

Engineered Efficiency was engaged by the Shire of Capel to deliver two major wastewater infrastructure upgrades transitioning facilities from ageing on-site wastewater systems to the Water Corporation sewer network. The scope focused on improving reliability, environmental compliance, and public health outcomes.

Investigations & Solutions Completed:

  • Hydraulic Modelling: Conducted detailed hydraulic modelling of both pressurised and gravity systems to assess existing arrangements and constraints.

  • Pump Station & Network Design: Delivered wastewater pump station designs utilising duty/standby macerating pumps, alongside pressure main and gravity sewer design.

  • Dalyellup Sports Pavilion Upgrades: Safely decommissioned the existing treatment system and designed a new private pumping arrangement with a DN63 pressure main connecting to the Wake Drive sewer.

  • Boyanup Lions Park Sewer Connection: Designed a new packaged pump station and rising main connecting the public amenities to the Bridge Street sewer, utilising Horizontal Directional Drilling (HDD) beneath a Main Roads WA corridor to protect traffic and existing services.

  • Regulatory & Compliance Management: Handled Water Corporation approvals, liaison, and compliance, ensuring designs aligned strictly with DS50/DS51 and WALGA PSP002-019 requirements.

  • Asset Decommissioning: Developed clear methodologies for the decommissioning of ATU and septic systems alongside emergency overflow storage capacity calculations.