Recycling Treatment Plant HVAC Improvements – Filter, Flocculation, and Sedimentation Building, and Source Water Pump Station Project
| Location: | Colorado |
|---|---|
| Posted: | Jan 6, 2026 |
| Due: | Jan 22, 2026 |
| Agency: | Denver Water |
| Type of Government: | State & Local |
| Category: |
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| Publication URL: | To access bid details, please log in. |
Engineering
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.
Addendum No.1:
-
12.0 Proposal Submittal
- Paragraph 7, Dropbox link updated.
Addendum No.2:
-
12.0 Proposal Submittal
- Paragraph 6, Pre-Proposal meeting time and date updated.
Post Date:
January 2, 2026
Due Date:
January 22, 2026
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.
Page 2 of 14
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:
•
•
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•
•
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•
•
•
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.
This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.
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