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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 was 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.
The ocean outfall and pipeline installation is expected to take approximately 11 months to complete. The project has two (2) segments:
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.
A portion of Marina Park will be closed for drilling equipment and pipeline construction. The drilling equipment will be enclosed in a 24-foot sound wall perimeter for potential noise mitigation. In addition, a portion of the parking lot will be closed for contractor staging, pipe storage, and assembly.
Access to the walking paths will be maintained as well as access to the Leo Robbins Sailing Center.
After construction is completed, the park will be restored to its pre-construction condition. Expected completion date is by Memorial Day 2024.
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 7 a.m. and 5 p.m., and sound barriers will be placed around work sites.
Community members will notice increased construction vehicle traffic in active working areas. There will be lane closures and detours as needed. Please follow all construction signage and drive carefully near work areas. Access to residential driveways and businesses will be maintained at all times.
The Ocean Outfall allows for the disposal of reverse osmosis concentrate (i.e. concentrated "purple pipe" water that is typically used for irrigation) 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 the Los Angeles Regional Water Quality Control Board will issue.
The discharge permits require the water quality discharged be protective of both aquatic and human health.