Optimal Stormwater was formed in 2009 to deliver specialist professional consulting and contracting services dedicated to all aspects of stormwater management.   Our QA, Environment and WHS management systems are ‘third party certified’ to current ISO standards.  Optimal Stormwater has grown steadily over the past 15 years and currently employees 18 full-time staff.  We share an office in Gordon with our parent company, Henry & Hymas, a longstanding Engineering Consultant with over 100 full-time staff.

In 2019, Optimal Stormwater opened the Victorian office where we have six full-time staff. The Melbourne office is now coordinated by Steve Darwent and Hugh Williamson.

In 2024 Optimal Stormwater commenced operations on the ground in Brisbane, Dan Rhodes is Optimal’s Business Development Manager for the Brisbane and Queensland region.

We are proudly part of the Henry & Hymas family.

Optimal Stormwater is well known to local government in regards to stormwater design solutions.  We focus on delivering the best long-term outcomes for our clients with high performance and excellent reliability.  Optimal Stormwater is unique in that we provide both design AND construction services.  Having practical experience greatly informs our designs, making them easier to build, better performing and more cost effective to operate in the long-term.  Please see www.optimalstormwater.com.au for comprehensive information about Optimal Stormwater and the services offered.  We have become the acknowledged leader in this niche.

Optimal is dedicated to all aspects of stormwater from auditing of stormwater quality assets such as GPTs, trashracks, WSUD and stormwater harvesting projects to planning, design, construction, operation, maintenance research and innovation.

Optimal Stormwater’s experience, capabilities and services are focused on delivering the best long-term outcome for construction, operation and management of stormwater quality and harvesting projects.

Optimal Stormwater considers stormwater quality and quantity impacts on the environment and seeks to manage these effectively. These new asset classes require unique skills to audit, design, manage and rectify and Optimal’s services are tailored to delivery these.

Optimal is unique in that we provide design and construction services. We investigate feasibility and specification, prepare concepts and detailed design then procurement and construction.

We remain present throughout the life cycle including auditing of stormwater quality and harvesting assets and provision of operation and maintenance for harvesting solutions. Having practical experience informs our designs making them easier to build, improves performance and cost effective to maintain.