Durham Advanced Wastewater Treatment Facility Volatile Fatty Acids (VFA) Delivery System Modifications

Agency: Clean Water Services
State: Oregon
Level of Government: State & Local
Category:
  • 66 - Instruments and Laboratory Equipment
Opps ID: NBD15068192473902240
Posted Date: Oct 6, 2017
Due Date: Oct 19, 2017
Source: Members Only

Durham Advanced Wastewater Treatment Facility Volatile Fatty Acids (VFA) Delivery System Modifications

  • Opens 10/6/2017
  • Closes 10/19/2017
  • Status Open


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Sealed Bids will be received by Michelle Mann, Administrative Assistant, at the office of Clean Water Services (Owner) located at the Durham Advanced Wastewater Treatment Facility (Durham Facility) TPS Trailer, 16060 S.W. 85th Avenue, Tigard, Oregon 97224 (Owners Office), until 2:00 p.m. local time, on October 19, 2017, for the Durham Advanced Wastewater Treatment Facility Volatile Fatty Acids Delivery System Improvements, Project No. 6921 (Project). Any Bids received after the specified time and date will not be considered. No electronic submissions will be accepted. First-Tier Subcontractor Disclosure Forms must be delivered to the same location at or before 4:00 p.m. local time on the same day in a separate envelope from the Bid.

The Bids will be publicly opened and read at 4:00 p.m. local time on Thursday, October 19, 2017, at Owners Office.

The Work must be substantially complete by Wednesday, February 28, 2018 and final completion shall be Thursday, March 29, 2018.
The Site of the Work is the Durham Facility, located at 16580 S.W. 85th Avenue, Tigard, Oregon 97224 (Site).
The Work is a public works project subject to ORS 279C.800 to 279C.870.

1. The Work under this Contract will consist of, but is not limited to furnishing all labor, materials and equipment necessary to:
a. Install new piping, fittings, valves, and appurtenances as specified in the Contract Documents to provide a complete piping system to convey Volatile Fatty Acids (VFAs) from the Volatile Fatty Acid Discharge (VFAD) Wetwell to each of the four existing aeration basins (AB) and the Primary Effluent Pumping Station (PEPS).

b. Demolish existing piping, fittings, valves, and appurtenances as specified in the Contract Documents to facilitate connection of the new VFAD piping system to existing pipelines.

c. Install a new tee with blind flange on thru-flow branch on the VFAD pipeline downstream of the connection to the existing Fermenter Thickener Overflow (FTO) pipeline to facilitate connection to future AB5.

d. Install four new Flow Meter Arrays (FMAs), one upstream of each VFA discharge into its designated AB, to control the split of flow to each existing AB. For each FMA, install v-port ball control valves with a connection at each control valve for high pressure air supply.

e. Perform hot water pressure cleaning of existing 8- to 10-inch VFAD piping, from 90-deg bend downstream of flow meter by existing VFAD pumps to 90-deg bend on existing 10 FTO pipe, where flow splits to AB3-4.

The estimated construction cost of the Work is $205,000.

The Bidding Documents are entitled Durham Advanced Wastewater Treatment Facility Volatile Fatty Acids Delivery System Improvements, Project No. 6921.

Bidders may download an electronic copy of the Bidding Documents by completing the section to request the document package on Owners website at http://bids.cleanwaterservices.org (Website) under the solicitation titled Durham Advanced Wastewater Treatment Facility Volatile Fatty Acids Delivery System Improvements, Project No. 6921. Bidders information will be accumulated for a Bid Holder's List, which is available on the Website, and bidders email will be used to send automatic notifications when Owner posts a new document or changes information related to this solicitation. If you experience problems downloading the Bidding Documents, please contact Michelle Mann a

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