YOSE 196416 Rehabilitate El Portal Wastewater Trea

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YOSE 196416 Rehabilitate El Portal Wastewater Treatment Facility and Administrative Camp

The work of this contract is for the construction of: YOSE 196416 Rehabilitate El Portal Wastewater Treatment Facility and Administrative Camp in Yosemite National Park, El Portal, Mariposa County, California.

This project will rehabilitate the 45-year-old El Portal wastewater treatment facility (WWTF), the largest in the NPS, and the sole wastewater treatment service for the Yosemite Valley, El Portal, and adjacent communities. The existing facility features an undersized two-story arrangement with limited access points and failing systems. It is not feasible to modify the existing plant to accommodate required improvements to lab and office space, make room for more effective treatment process infrastructure, or provide adequate space for system operation and maintenance activities. Replacement components are difficult to procure or are no longer manufactured due to the age of the existing plant, resulting in the need to fully replace the electrical service, switchgear, motor control center, and distribution systems.

This project will also rehabilitate the former El Portal Trailer Village (Administrative Camp) to be used as RV sites for construction workforce housing and a contractor staging area. NPS plans to rehabilitate or replace infrastructure and utility systems to support the RV sites. NPS will implement its best practices for RV-based campground design to arrange the RV sites to improve natural and cultural resource protection.

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