GWRS final expansion project

The existing 100 million gallons per day (mgd) Advanced Water Treatment Facility (AWTF) owned and operated by the District is to be expanded by 30 mgd to a total production capacity of 130 mgd. 

Bid must be received at the office of the Orange County Water District, 18700 Ward St., Fountain valley, CA 92708 by 2 p.m. on Tuesday, July 23, 2019. Please click here to view a list of GWRS final expansion prequalified contractors. For questions, please contact Sandy Scott-Roberts by mail or email.

There will be a second pre-bid site walk on Thursday, June 13th at 9am at the OCWD office (18700 Ward Street in Fountain Valley). This second pre-bid site walk is not mandatory and will focus on existing electrical rooms, equipment, and cable trays that are being worked on as part of the GWRS Final Expansion Project.

Technical specifications

Supplemental information

Addendum No. 1 to the GWRS Final Expansion Project GWRS-2019-01 was issued on May 21, 2019. Addendum No. 1 can be found here

Addendum No. 2 to the GWRS Final Expansion Project GWRS-2019-01 was issued on June 10, 2019. Addendum No. 2 can be found here.

Addendum No. 3 to the GWRS Final Expansion Project GWRS-2019-01 was issued on June 24, 2019. Addendum No. 3 can be found here.

Addendum No. 4 to the GWRS Final Expansion Project GWRS-2019-01 was issued on July 3, 2019. Addendum No. 4 can be found here.

Addendum No. 5 to the GWRS Final Expansion Project GWRS-2019-01 was revised on July 15, 2019. Addendum No. 5 can be found here.