Optimal Stormwater design and construction projects deliver quality solutions for reliable performance, safe and practical operation and maintenance and balanced operating cost. Optimal design, construct and operate under third party quality assured Integrated Management System (IMS) Standards AS/NZS ISO 9001:2016 & AS/NZS ISO 14001:2016 & AS/NZS 4801:2001
We prepare comprehensive construction methodologies, shoring design, pipeline and hydraulic specification, utility protect plans, flow management plans, pedestrian and traffic safe work methods statement, site induction, environmental management plans and community consultation are standard features of our construction projects.
In 2024 Woollahra Council sought to construct the 107KL balance tank for stormwater harvesting purposes at Christison Park, Vaucluse. An existing stormwater harvesting system was designed and constructed in 2015 however the provisional item of the 107KL additional storage tank […]
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Lane Cove Council – Creek Rehabilitation Works – Blackmans Park Optimal Stormwater was engaged in November 2024 by Lane Cove Council to rehabilitate the Creek running through Stony Gully, draining into the Lane Cove River. The creek had previously been […]
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Optimal Stormwater completed the installation of one of OceanSave’s largest Gross Pollutant Traps at Station Water Reserve, which drains to Kororoit Creek in Deer Park. During the excavation, Optimal removed some rocks and boulders which were repurposed as features rock for […]
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Scope of works included the design and installation of an Ocean Save for the Inner West Council. The site was located within the Council depot, the Council required a design to reduce their impacts on the downstream environment. The project […]
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Lane Cove Council awarded Optimal the design and construction of a CDS 1512 Unit after successfully constructing the previous GPT. The Scope of Work included: design, supply and construction of a CDS Unit, diversion chamber and site reinstatement. At completion […]
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Optimal Stormwater completed the design and construction of a CDS P1512 for MidCoast Council at Little Street, Forster. The design was off the back of an audit completed by Optimal in 2019, where a dilapidated Ecosol was recommended for re-design. […]
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Optimal Stormwater was engaged for the design and construction of SQID’s to accompany the Cumberland Council Civic Park Masterplan, a $4M project bringing Civic Park to life including the wetland improvement works. Optimal proposed the construction of 28.5m of graduated […]
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Optimal Stormwater won the construction of the restoration of the tidal channel in Carina Bay Reserve, Como. Carina Creek had suffered from sediment deposition which accumulated at the tidal confluence and subsequently created a barrier above the tidal level, mangroves […]
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Optimal Stormwater were engaged by Willoughby Council to undertake the design and construction of creek restoration, rock infiltration dam, a GPT and stormwater harvesting pumpwell at Warners Park, Northbridge. Optimal Stormwater designed and documented the works, including design of a […]
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Optimal Stormwater were engaged by Lane Cove Council to undertake the construction of waterway at Lane Cove Bushland Park. The project involves protecting two existing gullys from erosion to prevent damage to an endangered ecological fungi community, protecting an existing […]
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In 2020 Optimal Stormwater was commissioned by Mosman Municipal Council to design improvements to the watercourse discharging to popular Balmoral Beach. The watercourse was subject to severe erosion and sediment deposition as a consequence of urban stormwater flows. The headwall […]
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In 2019 Optimal Stormwater won the tender to design and construct two GPTs for Gwawley Bay catchment. One was a CDS P2018 Unit at Kareena Road, Miranda and the other a CDS P3024 Unit at the Five Ways intersection. The […]
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In 2020 Optimal Stormwater won the tender to design and construct three (3) GPTs for Dubbo Regional Council. Total tender value for design and construction of the three GPTs – just over $1.1M. The third site was at Paringa Place, […]
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In 2020 Optimal Stormwater won the tender to design and construct three (3) GPTs for Dubbo Regional Council. Total tender value for design and construction of the three GPTs – just over $1.1M. The second site was at Devils Hole […]
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In February 2020 Optimal Stormwater won the tender to design and construct a CDS Unit P2018 for Stringybark Reserve. As an alternative, Council was given the opportunity to design and construct an equivalent SPEL Vortceptor, also a high performance vortex […]
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In 2020 Optimal Stormwater won the tender to design and construct three (3) GPTs for Dubbo Regional Council. The most important site is located on Whylandra Street, West Dubbo with a 300 hectare catchment on twin 1800mm pipes discharging to […]
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In 2019 Optimal Stormwater won the detailed design of six Gross Pollutant Traps at various locations around North Sydney LGA. Optimal subsequently won the construction of a CDS 2018 at Hayes St, the first of six Gross Pollutant Trap. The […]
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Canterbury Bankstown Council has been a leader in the management of stormwater and operate over 70 GPTs and other devices. Older technologies installed decades ago are being upgraded and over 2018- 2019 Optimal Stormwater assisted with the design and construction […]
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Gwawley Bay is the focal point for water quality improvement with heavy loads of pollution discharged in to the bay via stormwater. Through a detailed investigation Kareena Road in Caringbah and Fiveways intersection in Miranda were identified by Optimal Stormwater […]
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Tuggerah Lakes on the Central Coast have been the focal point for funding by federal, state and local government due to their significant environmental value. The central coast community is also very zealous about the lakes and coastal environment. […]
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Veolia Waste and Environmental Services operate under a strict EPA license requiring stormwater contaminated with leachate from operations to meet high standards prior to discharge. Modification of an existing stormwater detention basin was identified as an opportunity to more consistently […]
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Inner West Council identified a redundant RMS sediment basin as an opportunity to repurpose into a community and environmental asset. Integrating sustainable water practice and environmental engineering Optimal Stormwater delivered a comprehensive redesign and construction project for IWC. Featuring integrated […]
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Optimal Stormwater undertook the design and construction of the creek and drainage works at Towra Point Nature Reserve including the rehabilitation and re-vegetation of an overland flow drainage channel and a new pit to manage flooding and erosion. We used […]
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Optimal Stormwater was selected by Hornsby Shire Council to design and construct a new stormwater treatment solution upstream of a bioretention basin in Lyne Road Reserve, Cheltenham. Council identified that the existing, underperforming bioretention basin downstream was underperforming due to […]
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Optimal Stormwater was selected by Hornsby Shire Council to design and construct a new stormwater treatment solution upstream of an ecologically sensitive creek within Neal Reserve, Sherbrook Road, Hornsby. The existing basket-type GPT was well undersized and causing upstream flooding […]
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