Stormwater Facility Design for Treatment and Attenuation at Styx River
This work is to design SW Facility to provide treatment and attenuation: � First flush, a sedimentation basin; � Wetland with 500 mm buffer storage. For CCC to meet the requirements of Styx River discharge consent and Styx River SMP, the project needs to desing and later to construct a first flush basin and wetland to…
Source ID: NZ-GETS-21264947
Scope overview
This work is to design SW Facility to provide treatment and attenuation: � First flush, a sedimentation basin; � Wetland with 500 mm buffer storage. For CCC to meet the requirements of Styx River discharge consent and Styx River SMP, the project needs to desing and later to construct a first flush basin and wetland to mitigate 12ha of new development area and 44ha of existing residential area.
The plan is to provide a sedimentation basin as a first flush treatment and wetland for secondary treatment and partial attenuation at 303 Gardiners Road (3.35ha of land). Runoff from 56ha will contribute to the proposed Gardiners StormWater (SW) Facility at Styx Headwater under the global discharge consent CRC131249 at 303 Styx Mill Road.
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