Project Information

Bid Title

Recycling Treatment Plant HVAC Improvements – Filter, Flocculation, and Sedimentation Building, and Source Water Pump Station Project

Issuing Agency

Denver Water

Location

Colorado

Published Date

Jan 20, 2026

Closing Date

Jan 22, 2026

Government Level

State & Local

Status

Closed

Original Source

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Bid Documents

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Project Description

Engineering

Recycling Treatment Plant HVAC Improvements – Filter, Flocculation, and Sedimentation Building, and Source Water Pump Station Project

Contract or Solicitation Number:

N/A

Solicitation Description:

The purpose of this project is to renovate the HVAC equipment at the Recycling Treatment Plant’s Filter, Flocculation, and Sedimentation Building, and Source Water Pump Station.

High Level Scope:

• Create heat loading models in Trace 3D Plus or similar of each of the facilities and provide a recommendation on total required heating and cooling loads for each facility.
• Perform duct pressure drop and natural gas pipe sizing calculations for all equipment to be replaced.
• Provide a materials analysis on the radiant heaters and coatings for the natural gas piping to select the best materials to be compatible with the chlorine in the facility.  Consider alternative materials, such as ceramic, and provide a recommendation.
• Update system designs to ensure that HVAC systems meet all current building, mechanical, fuel and gas, and energy efficiency code requirements.
• The Owner is performing an Electrification and Carbon Reduction Analysis and will direct the Consultant if the natural gas equipment is to be converted to electric by February 26, 2026.  As a separate proposal line item, provide the costs of electrification design for the HVAC equipment.
• Design and add a cooling system for the blower room in the filter and flocculation and sedimentation building.

Addendum No.1:

1. 12.0 Proposal Submittal
   1. Paragraph 7, Dropbox link updated.

Addendum No.2:

1. 12.0 Proposal Submittal
   1. Paragraph 6, Pre-Proposal meeting time and date updated.

Addendum No.3:

1. Added to High Level Scope:
   •    Design and add a cooling system for the blower room in the filter and flocculation and sedimentation building.

Post Date:

January 2, 2026

Due Date:

January 22, 2026

Solicitation Documents:

RFP Recycling Treatment Plant HVAC Improvements.pdf
,
1adm - RFP Recycling Treatment Plant HVAC Improvements.pdf
,
2adm - RFP Recycling TP HVAC Improvements_0.pdf
,
3adm - RFP Recycling TP HVAC Improvements.pdf

Attachment Preview

PROFESSIONAL SERVICES

REQUEST FOR PROPOSALS

Recycling Treatment Plant HVAC Improvements: Filter, Flocculation, and Sedimentation Building,

and Source Water Pump Station Project

1.0 Project Description

HVAC Improvements at the Recycling Treatment Plant Filter, Flocculation and Sedimentation Building,

and Source Water Pump Station.

Anticipated Duration: February 16, 2026 through March 13, 2028.

The purpose of this project is to renovate the HVAC equipment at the Recycling Treatment Plant’s Filter,

Flocculation, and Sedimentation Building, and Source Water Pump Station.

High Level Scope:

• Create heat loading models in Trace 3D Plus or similar of each of the facilities and provide a

recommendation on total required heating and cooling loads for each facility.

• Perform duct pressure drop and natural gas pipe sizing calculations for all equipment to be

replaced.

• Provide a materials analysis on the radiant heaters and coatings for the natural gas piping to

select the best materials to be compatible with the chlorine in the facility. Consider alternative

materials, such as ceramic, and provide a recommendation.

• Update system designs to ensure that HVAC systems meet all current building, mechanical, fuel

and gas, and energy efficiency code requirements.

• The Owner is performing an Electrification and Carbon Reduction Analysis and will direct the

Consultant if the natural gas equipment is to be converted to electric by February 26, 2026. As a

separate proposal line item, provide the costs of electrification design for the HVAC equipment.

2.0 Background and History

The HVAC Improvements Programs targets prioritized HVAC equipment in need of repairs and

replacement throughout the Denver Water System. The Recycling Treatment Plant Filter, Flocculation,

and Sedimentation, and Source Water Pump Station were identified for replacement by a systemwide

HVAC assessment.

3.0 Project Objectives

The following specific project objectives have been identified:

• Provide a separate proposal cost for the design to convert natural gas equipment to electric.

• BAS Controls details to be included:

o Complete controls narratives in the drawings for all HVAC equipment and provide the

electrical drawings necessary for a Building Automation Contractor to design and install a

BAS for the facilities.

o Ensure that the following safety controls are present on all equipment including, but not

limited to:

 High/Low temperature sensors and automatic shutdown.

 High/Low pressure sensors and automatic shutdown.

 Smoke detectors and automatic shutdown.

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o Integrate the HVAC into the existing fire alarm system.

• Submit detailed building heat loading analysis for each facility.

o Include detailed walls, roofs, and floors to closely match existing conditions as shown in

the design drawings.

o Include HVAC equipment configuration and air flow rates accurate to design proposal.

 Verify air flow rates meet existing for fresh air requirements in chemical spaces.

o Set design parameters to account for the ASHRAE 10-year recurrence weather event.

o Calculate temporary heating and cooling required during construction.

o Size all equipment to altitude and obtain equipment cutsheets at altitude. If the

manufacturer does not provide altitude rated equipment cutsheets, utilize standard sea-

level rated equipment that is large enough to account for the altitude de-rate, and list

larger models in the design drawings with expected performance at altitude. Demonstrate

altitude ratings to the Owner in a submittal package.

 Include heat gain calculations for the room when provided the airflows and air

temperature shown in the submittals for the selected equipment.

 Provide cut sheets from at least 2 manufacturers.

o Perform 1 8-hour site visit to verify existing curb dimensions and newly selected

equipment dimensions, and requirements for adaptive curbs.

• Equipment installation design:

o Account for adaptive curbs that may be required for equipment installation and show the

equipment dimensions and required adaptive curbs accurately on the drawings.

o Lay out equipment as rated to altitude in the drawings with true footprints and weights

including adaptive curbs.

• Additional calculations:

o Submit duct pressure drop calculations using standard Bernoulli equations.

o Submit natural gas pressure drop calculations in accordance with IFGC Building code

standards.

• General

o Provide reliable, efficient, and cost-effective HVAC system design.

o Minimize the length of partial outages required during construction and use of temporary

HVAC equipment.

o Provide HVAC equipment information necessary for the Owner to evaluate existing

structures for adequate support for changing or additional equipment or curb weights.

o Evaluate existing electrical feeds and controls based on designed equipment and make

design changes necessary for adequate power and new BAS controls.

o Provide project management and engineering design services through bid services

o Provide deliverables on time, and on budget, that satisfy the Owner’s design and

construction standards.

o Identify and minimize project risks to the Owner.

4.0 Consultant Scope of Services

The Consultant shall coordinate and work closely with the Owner’s Design Project Manager (DPM). The

Consultant shall provide an initial proposal with work breakdown structure clearly identifying hourly rates

for project management, administrative, and engineering design services through Construction award.

Based on the Consultant’s performance, the Owner reserves the right to extend, amend, or eliminate

services at any time. The proposals shall be structured as follows:

• A proposal through Bidding that includes the following:

o Phase 1 - Project Management and Administrative Services

o Phase 2 - Project Pre-Design and Design Criteria

Page 3 of 14

o Phase 3 - 30% Design

o Phase 4 - 60% Design

o Phase 5 – Final Design

 90% Design

 Assistance during advertisement, bidding, and award, and final Construction

Documents

5.0 Consultant Qualifications

The Consultant’s Mechanical, Electrical, Instrumentation and Controls (EI&C) Engineers shall each have,

at a minimum, 5 years of experience designing industrial HVAC systems for hazardous locations,

specifically one project relating to HVAC in a Water Treatment Plant with processes containing chlorine or

similar as the Professional Engineer of Record. The Consultant’s Professional Engineer of Record shall

be licensed in the State of Colorado.

This project will be developed, coordinated, and stored in Denver Water’s ProjectWise data source.

Project-related deliverables will be distributed collaboratively through ProjectWise, and all working and

final copies of documentation will be versioned and archived within ProjectWise. The Consultant must

establish a valid user-based license agreement with Bentley Systems prior to receiving access to Denver

Water’s ProjectWise data source. The Consultant should visit

https://virtuosity.bentley.com/product/projectwise-explorer-virtuoso-subscription/ to obtain the ProjectWise

Explorer license(s). Project-related deliverables will be distributed collaboratively through ProjectWise,

and all working and final copies of documentation will be versioned and archived within ProjectWise. This

shall include meeting minutes, correspondence and engineering calculations, including input and output

files from any software used for design. It shall be the responsibility of the Prime Consultant to ensure

access for all subconsultants as appropriate, that all subconsultant design documents are properly filed. A

brief overview, security access, and training will be provided on how to use and navigate Denver Water’s

ProjectWise datasource can be scheduled after award.

Questions on ProjectWise will be addressed during the Pre-Proposal meeting.

6.0 Owner Responsibility

The Owner will provide to the Consultant available relevant information to aid in the design process. This

includes but is not limited to the following:

•

•

•

•

•

•

•

•

•

•

7.0

Record documents, drawings, and CAD files (where available) of the facility and the existing

HVAC System.

Owner’s Standard AutoCAD drawing (template) files.

Administrative templates.

Access to Owner’s Capitol Project Procedures Manual (CPPM), Capitol Project Construction

Standards (CPCS), and Owner’s CAD Standards, which are also located online:

http://www.denverwater.org/DoingBusinesswithUs/EngineeringOverview/

List of Owner Stakeholders.

Access to the Recycling Treatment Plant for Consultant’s design work.

Environmental Evaluation (lead and asbestos testing).

Distribute design gate review sessions and return design review comments within agreed upon

schedules.

Example Work Plans and Design Memos.

Denver Water Engineering Specification and Formatting Guidelines and the Supplemental

Technical Specifications template for the Consultant use and submittals.

Project Assumptions

The following assumptions were made in the development of this Scope of Work:

Page 4 of 14

• The project execution shall follow the Owner’s Capital Projects Procedures Manual (CPPM)

located at https://www.denverwater.org/contractors/construction-information/design-standards.

• The Design Phase will proceed to 30% where major decisions and design criteria will be set. The

30% level will be a major design gate for the project and will meet the requirements of the CPPM

at a minimum.

• The Owner will provide payment for agreed upon permit application and review fees.

• The Design Phase shall not exceed the duration indicated in the Schedule.

• Public relations efforts during design, if needed, will be completed by the Owner.

• Drawings shall be developed, coordinated, and stored in the ProjectWise data source. Drawings

shall be developed and as-built in accordance with Denver Water CAD standards in 2-D

AutoCAD.

• Consultant shall attend a meeting with the Owner’s Drafting Supervisor to discuss Owner’s

Drafting Standards. The meeting shall be attended by at least two individuals on the Consultant’s

drafting team. Consultant shall submit drawing files a minimum of 3 days prior to Project Gate

submittal dates.

• Consultant shall attend a meeting with the Owner’s Administration personnel to discuss the

Owner’s guidelines for specification preparations. The meeting shall be attended by a document

specialist in charge of producing the technical specifications. Consultant’s specifications shall be

submitted in the latest CSI format and adhere to the Owner’s Engineering Specification and

Formatting Guidelines. Consultant shall submit technical specification files a minimum of 3 days

prior to Project Gate submittal dates.

• Construction Contract General Conditions, Contract Agreement, Bid Forms, etc., will be provided

by the Owner via the Capital Projects Construction Standards (CPCS) located online at

http://www.denverwater.org.

• A gate is a term used to reference a formal document; it is also the process used to acknowledge

project decisions. A gate is designed to acknowledge the approval of its related topic by project

stakeholders. In addition, a gate is a means to document decisions made that are critical to the

progress of the design beyond the current milestone/phase. Once a gate is closed, changes

cannot be made to the design deliverable nor data transferred without approval from the Owner

and the Consultant Project Managers. If changes are identified, those changes are to be logged

on the project change log and addressed in accordance with the change management process

identified in the Project Work Plan.

• The site is free of any sensitive cultural resources that require environmental clearance or other

required permitting at the local, state, or federal level.

• The Consultant will compile documents for bid packages and other submittals. Construction

Contract Front-End Documents which include; General Conditions, Contract Agreement, and

Proposal Forms, will be completed by the Owner with input from the Consultant.

• The Consultant shall compile all documents for submittals and deliverables.

• The Owner has assigned the project a highly restricted security designation. The Consultant

shall sign a Non-Disclosure Agreement prior to attending the project site meeting and may be

subject to additional personnel screening requirements prior to the proposal’s due date.

• The Consultant shall provide the engineering resources in all disciplines necessary to support the

complete design.

• The Owner will select Contractors to receive Construction Bid Documents from the Security

Prequalification Contractor List (SPCL) and Prequalified Contactor List (PCL). Consultant can

make recommendations to add Contractors to this list during design.

Page 5 of 14

8.0 Project Schedule

The anticipated Project Schedule is summarized as follows:

Task

Date

Mandatory Pre-Proposal Site Visit January 8. 2026

Final Written Questions Due

January 15, 2026

Proposals Due 11:00AM

January 22, 2026

Notice of Award

March 9, 2026

Submit Update to Preliminary

Work Plan

April 6, 2026

30% Stakeholder Review Begins May 4, 2026

60% Stakeholder Review Begins July 6, 2026

90% Stakeholder Review Begins September 1, 2026

Final Documents to

Administration for Bid

Anticipated Construction Window

October 26, 2026

November 2, 2027

through

March 26, 2028

Proposals shall include a detailed schedule with any deviations from the schedule clearly identified.

9.0 Scope of Services

Project Management and Administration

Project Management and Administration includes the following activities:

• General Project Management

• Project Management Plan development

• Project controls and reporting

• Project workshops

• Project meetings

• Facilitate project gate review meetings (30%, 60%, 90%)

• Project Management review meetings

General Project Management

Time for this task is allocated to the Consultant Project Manager to oversee and administer the

project.

Commodity Codes

• NAICS 221310Water Supply and Irrigation Systems
• NAICS 236220Commercial and Institutional Building Construction
• NAICS 237110Water and Sewer Line and Related Structures Construction
• NAICS 238220Plumbing, Heating, and Air-Conditioning Contractors

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