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A very thorough evaluation took place prior to selecting the Marina Park location, including a study to evaluate the use of existing outfalls that were previously abandoned. Ultimately Marina Park was the only location that avoided subsurface obstructions and fault lines, provided enough construction workspace, and would increase the overall protection for the pipelines offshore. Additional information on that evaluation is discussed in the Ventura Water Supply Projects Environmental Impact Report.
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An outfall is needed to discharge concentrate generated by the new Advanced Water Purification Facility (AWPF), as part of the VenturaWaterPure, potable reuse project. Additionally, the outfall will support wet weather flows that exceed the AWPF capacity and in event of an AWPF shutdown.
The outfall will be designed to mitigate any potential impacts to the environment and wildlife. The impacts were evaluated in the Ventura Water Supply Projects Environment Impact Report, and the City will comply with all identified mitigation measures.
It is anticipated that the construction of the outfall will take place in 2023 and 2024. Work activities in Marina Park are anticipated to begin after Labor Day 2023 and end by Memorial Day 2024.
Any impacts to Marina Park are expected to be temporary. During construction of the outfall, a portion of the park will need to be closed. Construction in Marina Park is anticipated to last approximately 9 months. More information on specific impacts in the park will be available soon, however public access to the beach will be maintained during construction. After construction is completed, the park will be restored to its pre-construction condition.
Impacts to the Pierpont community will include those consistent with typical construction activities, notably increased traffic of heavy construction equipment and noise. To mitigate these impacts, work activities will only occur between the hours of 7am and 5pm, and sound barriers will be placed around work sites.
The City is currently finalizing the route of the conveyance pipeline from the Ventura Water Reclamation Facility to the ocean outfall in Marina Park, with a focus on minimizing disturbance and disruption to the Ventura community. All pipeline construction work will occur within public roadways or already disturbed areas. Additional details on the finalized route will be available soon.
The Ocean Outfall allows for the disposal of concentrate generated by the new Advanced Water Purification Facility (AWPF), diverts wet weather flows that exceed AWPF treatment capacity, and provides an emergency backup disposal in case the AWPF is offline. All discharge from the outfall must comply with permits that will be issued by the Los Angeles Regional Water Quality Control Board.