Project–At–A–Glance

WSIP Region
San Joaquin

Location
Unincorporated
San Joaquin County

Construction Start
February, 2009

Construction Finish
April, 2011

Current Status
Design, Environmental

Project Cost
$112M

The Tesla Treatment Facility Project combines the Advanced Disinfection Project with the Tesla Portal Disinfection Station Project.  Both projects will be constructed at Tesla Portal in San Joaquin County, where water from Hetch Hetchy Reservoir transitions from the San Joaquin pipelines to the Coast Range Tunnel.

The Tesla Treatment Facility Project would provide a new 315-mgd treatment facility using ultra-violet (UV) disinfection and new chemical feed facilities enabling the SFPUC to comply with new federal Environmental Protection Agency water treatment requirements, which will go into effect in April 2012. The new chemical storage and feed facilities would replace the functions of the existing Tesla Portal Disinfection Facility, eliminating the need to rehabilitate that facility. This project is provided in response to the Water Quality level of service goals.

Description

The project would consist of:

• Isolation valves and piping to divert SJPL flow to the new treatment facility, large-diameter piping and valves located within the treatment facilities, and a single discharge pipeline to tie back into the existing SJPLs.
• A disinfection building housing 12 UV reactors, cleaning equipment, and ancillary equipment.
• A chemical storage and feed building for sodium hypochlorite, hydrofluosilicic acid (i.e., fluoride), and either sulfuric acid or carbon dioxide.
• Office, laboratory, and control facilities, emergency engine generators, and security-related site and access road improvements.

Note: Schedule and cost information shown may vary from the 2007 Approved WSIP Schedule and Budget. The information shown reflects the current forecast information published in the latest WSIP Quarterly Report.