San Jose - NITRIFICATION CLARIFIER REHABILITATION

Owner: 
City of San Jose
Bid Date: 
Wednesday, July 3, 2019 - 15:00
Description: 

The CITY is currently undertaking numerous projects as part of its Capital Improvement

Program (CIP) to improve and upgrade facilities at the FACILITY, including a two-phase

project to rehabilitate sixteen (16) secondary clarifiers originally constructed during the

1970s and 1980s, referred to as the Nitrification Clarifiers that support the Biological

Nutrient Removal 2 (BNR2) treatment train.

The FACILITY BNR2 secondary treatment facilities were commissioned in 1975 and 1981

to provide second-stage nitrification to the BNR1 process. The BNR2 process consists of

two separate treatment trains identified as .Battery A. and .Battery B.. Each treatment

train or Battery consists of four (4) aeration basins and eight (8) secondary clarifiers. The

clarifiers have a diameter of 140 feet, sidewater depth of 12 feet 9 inches, and are

configured for peripheral mixed liquior feed, peripheral effluent collection, and a

submerged suction header for removal of settled solids.

Battery A clarifiers are numbered A-1 through A-8 and Battery B clarifiers are numbered B-

1 through B-8. The Project consists of complete rehabilitation of eight (8) clarifiers and

partial rehabilitation of the remaining eight (8) clarifiers and associated facilities at the

BNR2 complex of the FACILITY. The work to be completed at each of

the sixteen (16) clarifiers varies as described more fully below in paragraph 1.04.

 

 

Location: 
Work Site located at the existing San José-Santa Clara Regional Wastewater Facility (FACILITY), 700 Los Esteros Road, San José, Santa Clara County
Amount: 
$40M
Estimator: 

Larry Etcheverry (510)234-0926

larrye@overaa.com

Bid Walk: 
Has already passed.
Requirements: 

This project is subject to the Project Labor Agreement (“PLA”) entered into between the City of San José and the Santa Clara and San Benito Counties Building & Construction Trades Council.

 

Project is subject to Owner Controlled Insurance Program Contractor's Insurance Procedures (OCIP)

Availability: 

PlANS AND SPECIFICATIONS

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timeliness of the final bid.