Western Wake Regional Water Reclamation Facility Liquids Train Expansion Preliminary Engineering Report

Agency:	State Government of North Carolina
State:	North Carolina
Type of Government:	State & Local
NAICS Category:	541330 - Engineering Services
Posted Date:	Apr 2, 2026
Due Date:	May 8, 2026
Solicitation No:	354-UT26-25
Original Source:	Please Login to View Page
Contact information:	Please Login to View Page
Bid Documents:	Please Login to View Page

Solicitation Number:	354-UT26-25
Project Title:	Western Wake Regional Water Reclamation Facility Liquids Train Expansion Preliminary Engineering Report
Description:	The Towns of Cary and Apex are seeking one or more qualified firm(s) for the development of a preliminary engineering report (PER) for the expansion of the liquids treatment train at the Western Wake Regional Water Reclamation Facility (WWRWRF) from 18 MGD to 30 MGD. A non-mandatory pre-submittal conference is schedule for Tuesday, April 14 at 3pm at the WWRWRF. Questions are due April 21st with responses posted by April 24, 2026. Final submittals are due Friday, May 8th by 3:00 PM ET.
Opening Date:	5/8/2026 3:00 PM
Posted Date:	4/2/2026
Status:	Open
Department:	TOWN OF CARY


Solicitation Number * 354-UT26-25	Department TOWN OF CARY	Status Reason Open
Opening Date 2026-05-08T15:00:00.0000000	Posted Date * 2026-04-02T14:59:26.0000000Z	Primary Commodity Code Professional engineering services
Mandatory Conference/Site Visit — —	Special Instructions —	Solicitation Type * Select RFP IFB RFI
Owner Kathryn McMillan
Description The Towns of Cary and Apex are seeking one or more qualified firm(s) for the development of a preliminary engineering report (PER) for the expansion of the liquids treatment train at the Western Wake Regional Water Reclamation Facility (WWRWRF) from 18 MGD to 30 MGD. A non-mandatory pre-submittal conference is schedule for Tuesday, April 14 at 3pm at the WWRWRF. Questions are due April 21st with responses posted by April 24, 2026. Final submittals are due Friday, May 8th by 3:00 PM ET.

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REQUEST FOR QUALIFICATIONS

RFQ # 354-UT26-25

Project Title: Western Wake Regional WRF Liquids Train Expansion

Preliminary Engineering Report

Issue Date: April 2, 2026

Due Date: May 8th at 3:00 PM ET

Issuing Department: Utilities

Direct all inquiries concerning this RFQ to:

Corrie Bondar, P.E.

Assistant Utilities Director

Email: corrie.bondar@carync.gov

v.04.15.24

Table of Contents

1 INTRODUCTION................................................................................................................................ 1

1.1 Purpose ......................................................................................................................................................1

1.2 Background...............................................................................................................................................1

1.3 RFQ Timeline...........................................................................................................................................7

1.4 Pre-Submittal Conference.................................................................................................................7

1.5 Questions...................................................................................................................................................7

1.6 Submittal Requirements and Contact Information ................................................................8

1.7 Rights to Submitted Material............................................................................................................8

1.8 Communications ....................................................................................................................................9

1.9 Lobbying.....................................................................................................................................................9

1.10Gifts and Favors .....................................................................................................................................9

1.11Proposer Expenses ..............................................................................................................................9

1.12Proposer Acceptance ..........................................................................................................................9

2 QUALIFICATIONS PACKAGE .................................................................................................. 10

2.1 Request for Qualifications Required Document Format ................................................. 10

2.2 Hourly Rates ......................................................................................................................................... 11

2.3 Qualifications Package Documents........................................................................................... 11

3 PROPOSAL EVALUATION ........................................................................................................ 12

3.1 Evaluation Criteria .............................................................................................................................. 12

3.2 Final Selection...................................................................................................................................... 12

3.3 Notice to Proposers ........................................................................................................................... 12

4 SCOPE OF SERVICES ................................................................................................................. 13

5 EXECUTION OF PROPOSAL .................................................................................................... 17

APPENDIX I ................................................................................................................................................ 18

v.04.15.24

1 INTRODUCTION

1.1 Purpose

The Towns of Cary and Apex are seeking one or more qualified firm(s) with which to

contract for the following services:

• Development of a preliminary engineering report for the expansion of the liquids

treatment train at the Western Wake Regional Water Reclamation Facility

(WWRWRF) from 18 MGD to 30 MGD.

A detailed scope of services is provided in Section 4 of this solicitation.

Information related to this solicitation, including any addenda, will be posted to the North

Carolina electronic Vendor Portal (eVP) at https://evp.nc.gov/solicitations/.

1.2 Background

The Western Wake Regional Water Reclamation Facility represents the culmination of

more than a decade of regional cooperation and planning among the Western Wake

Partners including Cary, Apex and Morrisville. The water reclamation facility is jointly

owned by Cary and Apex, (66% Cary and 34% Apex) as Cary provides utility services in

Morrisville following their utility merger in 2006. Cary serves as Lead Agency under

existing operations agreements and is responsible for operation and maintenance of the

facilities and for all permits and regulatory compliance.

The WWRWRF site is approximately 207 acres and was designed to minimize both

environmental impacts and potential negative impacts to the surrounding community.

The WWRWRF design process and siting were conducted in a way to honor Cary’s

commitments to its neighbors by employing the best available technologies for odor

control and overall nuisance mitigation as well as minimizing environmental impacts

through an intensive environmental review process as part of development of its

Environmental Impact Statement. The facility was designed with an attractive, compact

architectural campus layout providing clean lines of sight throughout the entire facility.

This facility has performed extremely well during the past 11+ years, achieving high

standards for nutrient removal, environmental protection and providing high quality

treated water to the Cape Fear River basin. The facility is an active member of the Middle

Cape Fear Basin Association, which performs the water quality monitoring necessary to

meet NPDES permit requirements. The WWRWRF has been recognized as an award-

winning facility, having received the Partnership for Clean Water Director’s Award and

multiple NACWA recognitions, including seven consecutive Platinum Awards and a Silver

Award in 2024. The facility has also been recognized by the Water Environment

Federation (WEF) as a Platinum Partner in its Nutrient Smart program and as an innovator

in nutrient removal.

The trees, streams and foliage on the site are protected within the facility by a 200-ft

undisturbed buffer around the facility perimeter. Cary’s values of environmental

protection, exceptional wastewater treatment performance, being a good neighbor, and

providing exceptional quality biosolids for beneficial reuse are important to citizens,

neighbors, and staff. These values are an important feature of Cary’s decision-making

process and will be reiterated throughout the scoping and design meetings.

The facility was designed and permitted for flows up to 18-MGD across four treatment

trains and treats both domestic and high strength non-residential wastewater from the

service area. The facility began operating on July 28, 2014, and discharging treated water

to the Cape Fear River on August 11, 2014. The facility provides wastewater treatment

for the Western Wake County and Chatham County service areas of Cary, Apex, and

Morrisville, as well as Wake County’s portion of Research Triangle Park (RTP). The

service area population for the WWRWRF is 109,000 and growing.

Wastewater treatment begins on-site with preliminary treatment, which consists of two 6-

mm perforated plate screens and one manual screen. The grit removal system consists

of a vortex grit chamber and secondary grit removal from the influent force mains. The

collected grit is processed through two grit classifiers in which organics are rinsed from

the grit. Secondary treatment is provided through a five-stage process, which is a

modified version of the Virginia Initiative Process for biological removal of nitrogen and

phosphorus. The WWRWRF has four separate Biological Reactor Basins (BRB) that

provide advanced secondary treatment. Clarification immediately follows the secondary

treatment process basins with four large and four small rectangular clarifiers. This is

where treated wastewater effluent is separated from the microorganisms, in the form of

solids, through a settling process. These microorganisms (or biosolids) are either

recirculated back to the BRBs or wasted to the solids handling process. Tertiary treatment

of the effluent is provided through eight disc filters, followed by three channels with two

banks each of ultraviolet lamps for final pathogen disinfection. Finally, the treated

wastewater is aerated in the post aeration basin before being pumped approximately 11

miles via a single pipeline to the Cape Fear River. The treated water discharge flows

over a cascade aeration structure adjacent to the river before being discharged just below

the Buckhorn Dam. A process schematic is shown below.

Below is an aerial view of the facility with process flow diagram and direction of flow

indicated. More details on the current process can be found in our virtual overview:

https://view.genial.ly/5f75fc5c6926ac0d03e5aa7f

This page summarizes the opportunity, including an overview and a preview of the attached documents.

* Disclaimer: This website provides information about bids, requests for proposals (RFPs), or requests for qualifications (RFQs) for convenience only and does not serve as an official public notice. Individuals who wish to respond to or inquire about bids, RFPs, or RFQs should contact the relevant government department directly.

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Western Wake Regional Water Reclamation Facility Liquids Train Expansion Preliminary Engineering Report

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