National Park Service Logo
PEPC Planning, Environment & Public Comment
PEPC Home Documents by Park Policy/Links Park Planning Search Documents
Picture of the existing Wawona Wastewater Treatment Plant. This is a view of the plant upper level looking into the treatment basins.

Wawona Wastewater Treatment System Rehabilitation Environmental Assessment

The environmental assessment (EA) presents two action alternatives. Alternative 2 (Preferred Alternative) provides central sewage treatment to the Wawona Campground, upgrades to the Wawona Wastewater Treatment Plant infrastructure, improves the Big Trees Lodge Golf Course effluent disposal system (including construction of underground disposal trenches), and eventually replaces the vault toilet at the South Fork Picnic Area with a double-stalled flush toilet restroom (once funding is available). Alternative 3, which was analyzed and not identified as the preferred alternative, would use a different arrangement of lift stations for sewage conveyance at the Wawona Campground and construct sub-surface drip irrigation for effluent disposal at the Big Trees Lodge Golf Course instead of disposal trenches.
Comment Period: Closed        11/12/2018 - 12/09/2018
Document Content:
Wawona WWTS Rehab EA_508.pdfWawona WWTS Rehab EA_508.pdf   (15.4 MB, PDF file)
Disclaimer: Links within the above document(s) were valid as of the date published.
Note:Some of the files may be in PDF format and can be viewed using the Adobe Acrobat Reader software.
You may download a free copy of Acrobat Reader from Adobe Systems.