Purchasing Department REQUEST FOR INTEREST RFI # 1818 December 29, - - PDF document

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Purchasing Department REQUEST FOR INTEREST RFI # 1818 December 29, - - PDF document

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4 County Complex Court Phone (703) 335-8925 P.O. Box 2266 Fax (703) 335-7954 Woodbridge, VA 22192-9201 www.pwcsa.org Purchasing Department REQUEST FOR INTEREST RFI # 1818 December 29, 2017 RFI Title: H. L. Mooney Water Reclamation Facility

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RFI # 1818-1 REQUEST FOR INTEREST RFI # 1818 December 29, 2017

RFI Title:

  • H. L. Mooney Water Reclamation Facility

Construction Contract (comprised of three projects):

  • Influent Flow Diversion Project
  • Modifications to Controls & Process (C&P)

Building Project,

  • and Switchgear Building Hardening Project

RFI Responses: Submit to: Mikyong Rodgers Procurement Officer Prince William County Service Authority P.O. Box 2266 Woodbridge, VA 22195-2266 Or E-mail at: purchasinggroupmail@pwcsa.org

=============================================================== Contact Information: _____________________________________ Company Name _____________________________________ Name Printed _____________________________________ _____________________________ Authorized Signature E-mail ______________________________________ _____________________________ Phone Number Fax Number Comments: (Add Additional Sheets if Necessary): _______________________________________________________________________ _______________________________________________________________________ _____________________________________________________________

4 County Complex Court P.O. Box 2266 Woodbridge, VA 22192-9201 Phone (703) 335-8925 Fax (703) 335-7954 www.pwcsa.org

Purchasing Department

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RFI # 1818-2

REQUEST FOR EXPRESSION OF INTEREST for constructing three projects under one construction contract at the H.L. Mooney Water Reclamation Facility for the Prince William County Service

  • Authority. The projects include: the Influent Flow Diversion Project,

Modifications to the Controls & Process (C&P) Building Project, and the Switchgear Building Hardening Project

Ladies/Gentlemen, The Prince William County Service Authority (Service Authority) is soliciting Letters of Interest from construction contracting firms interested in constructing three Mooney Plant construction projects; Influent Flow Diversion, Modifications to Controls & Process (C&P) Building, and Switchgear Building Hardening Projects. The Service Authority will be pre-qualifying contractors/contracting teams for this construction contract. In responding to this Request for Interest, the Service Authority will provide a Request for Qualifications as the next step in the pre-qualification process. The Service Authority plans to award the contract to the lowest responsive, responsible bidder that is pre-qualified to receive the Invitation for Bids. Selection of contractor/contracting teams to be pre-qualified will occur after review of the response to the Request for Qualifications. The Service Authority’s objectives in this pre- qualification process are to ensure that potential Bidders are aware of our plan that through the pre-qualification and selection process, we seek to obtain one qualified Contractor or Contracting Team that will complete three different construction projects; Influent Flow Diversion, Modifications to the Controls & Process (C&P) Building, and the Switchgear Building Hardening Projects through an open and fair method. Please reply by January 11, 2018 at 2:00 P.M. (EST): Mikyong Rodgers Procurement Officer Prince William County Service Authority P.O. Box 2266 Woodbridge, VA 22195-2266 purchasinggroupmail@pwcsa.org

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RFI # 1818-3 I. GENERAL STATEMENT OF WORK

  • A. Contract Scope/Size:

The construction contract will entail constructing three separate projects at the H. L. Mooney (Mooney) Advanced Water Reclamation Facility (AWRF) located at 1851 Rippon Boulevard, Woodbridge VA. The Mooney AWRF has a rated design capacity

  • f 24 mgd and treats wastewater to enhanced nutrient removal effluent quality. The

projects will improve the reliability, operability and conditions of the facility. The construction contract will be implemented using the design-bid-build method. The three projects are termed: Influent Flow Diversion, Modifications to Controls & Process (C&P) Building, and Switchgear Building Hardening. The three projects are located in different areas of the facility; can be constructed independently; and were designed by different design engineering consulting firms. The Influent Flow Diversion project is primarily comprised of underground piping/concrete structure construction with temporary bypass pumping required. The Modifications to Controls & Process Building and Switchgear Building Hardening projects are primarily architectural/building upgrade projects. The construction contract will be bid Spring 2018 after the pre-qualifying process is

  • completed. Construction contract duration will be a maximum of 18 months.
  • B. Additional information for each project:
  • 1. Influent Flow Diversion Project:

Scope of work:

  • a. Construction of a 36-inch diameter influent flow diversion pipe and associated

structures to allow plant influent to be routed directly to an equalization basin.

  • b. Temporary flow controls to provide bypass pumping during construction, to

facilitate the connection of the diversion pipe to existing plant infrastructure. The provider of the bypass pumping system will be pre-designated by the Service Authority as part of the contract documents.

  • c. New structures: a diversion structure with multiple chambers and gates, a buried

metering chamber housing a magnetic flow meter and a buried isolation valve

  • chamber. Each structure is a custom designed cast-in-place concrete structure,

with the chambers having access risers.

  • d. Modifications to existing structures: significant modifications are required to the

existing buried diversion chamber for top slab removal, new 36” penetration, and replacement of existing piping and slide gate.

  • e. Associated demolition, instrumentation, access stairway, and site improvements.

Challenges associated with the project include: constructing a new diversion structure integral with an existing equalization tank while also being self-supporting through the use of micropiles for the new foundation; providing and scheduling the bypass pumping

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RFI # 1818-4 work to allow bypass of full forward plant flow with no impact to plant operations; and providing and scheduling flow testing to demonstrate the functionality of the new diversion system while minimizing impacts to plant operations by scheduling during certain weather/seasonal conditions.

  • 2. Modifications to the C&P Building:

Scope of work:

  • a. Interior modifications to approximately 6,600-sq.ft. of existing C&P Building
  • b. Renovation of interior spaces to meet the current and future programming

requirements, including remodeling and reconfiguring new locker rooms, laboratory, and offices. New interior walls, replacement flooring and ceiling systems will be provided.

  • c. Replacement of existing roof with new roofing system.
  • d. Exterior repair work and repointing of existing masonry.
  • e. Replacement of exterior storefront windows and doors.
  • f. New HVAC, electrical and plumbing design.
  • g. Hazardous material abatement.

Challenges associated with the project include: maintaining access for Service Authority staff during construction to process equipment located in the basement; constructing plumbing improvements in process equipment areas without impacting plant operation; protecting and maintaining operation of electrical equipment located in areas that require demolition/construction areas; and addressing hazardous material requirements.

  • 3. Switchgear Building Hardening Project:

Scope of work:

  • a. Temporary building enclosure
  • b. Hazardous material removal
  • c. Landscaping
  • d. Replacement of the entire building façade for 600-sq.ft. single story building
  • e. Replacement of the heating and air conditioning units
  • f. Security system upgrades
  • g. Fire suppression system upgrades
  • h. Electrical work

Challenges to the project include: performing work in close proximity to live electrical gear that needs to remain operational throughout the project; addressing hazardous material requirements; and allowing Service Authority staff access during construction.

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RFI # 1818-5 II. ESTIMATED COST The Work (comprised of the three projects) has an overall estimated construction cost of $4 to 8 M. III. SUBMISSION The Letters of Interest will allow the Service Authority to compile a list of interested companies for notices and any announcements relating to this project, specifically to receive the Request for Qualifications. Address all letters of interests to: Mikyong Rodgers Procurement Officer Prince William County Service Authority P.O. Box 2266 Woodbridge, VA 22195-2266 purchasinggroupmail@pwcsa.org Potential Bidders shall select one of the following options in response to this Request for Interest:

  • 1. ( ) We are INTERESTED in submitting a bid for a future solicitation.

 Name of company:______________________________________________  Company address:_______________________________________________  Phone number and email address: __________________________________ ______________________________________________________________  Point of contact: ________________________________________________  Recommendations and concerns regarding our future solicitation process: _______________________________________________________________ ______________________________________________________________

  • 2. ( ) My company is NOT INTERESTED in submitting a bid.

 Name of company:______________________________________________  Company address:_______________________________________________

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RFI # 1818-6  Phone number and email address: __________________________________  ______________________________________________________________  Point of contact: ________________________________________________  We are not interested because: ______________________________________ _______________________________________________________________ _______________________________________________________________ Service Authority would appreciate your willingness in explaining why you are not interested in participating in this process. It would be very beneficial for the Service Authority to understand the market reaction related to any future solicitation processes. IV. QUESTIONS CONCERNING RFI Questions and inquiries concerning this RFI should be directed to Mikyong Rodgers at purchasinggroupmail@pwcsa.org or 703-335-7923. V. FUTURE SOLICITAION PLAN Upon completion of Request for Interest (RFI) process, the Service Authority plans to solicit Bids through a two-step process as follows: Step One Request for Qualification (RFQ): Service Authority will select qualified Bidders through the RFQ process shortly after the RFI process. Step Two Invitation for Bids (IFB): Service Authority will procure a contractor/contracting team for the three outlined construction projects by soliciting bids from pre-qualified Bidders as a result of RFQ process.