REGIONAL REUSE PROGRAM

PROGRAM MANAGEMENT PLAN:

DESIGN DELIVERABLE REQUIREMENTS

May 13, 2026

Prepared for:

Washington County Water Conservancy District

City of St. George

Ash Creek Special Service District

Prepared by:

Stantec

Regional Reuse Program PMP

Design Deliverable Requirements

Table of Contents

1 Introduction

1.1 Overview and Purpose

2 Program Procedures for Design Consultant

2.1 Organization Chart

2.2 CAD/BIM

2.3 Scheduling

3 Design Stages

3.1 Preliminary Design Report

3.2 30% Basis of Design Report

3.3 60% Basis of Design Report

3.4 90% Design Documents

3.5 Issue for Construction (IFC) Documents

3.6 Opinion of Probable Construction Cost

4 Quality Review

5 Terms, De8initions, and Acronyms

6 Revisions

List of Tables

Table 3-1: Design Stages

Table 4-1: Milestone Review

Table 6-1: Revision History

Attachment

Attachment A Design Stage Milestone Content .....................................................................................A-1

Attachment B QA/QC Process Certi8ication Document ..................................................................... B-1

1 Introduction

1.1 Overview and Purpose

The Regional Reuse Puri8ication System (system) is a critical strategy developed by the

Washington County Water Conservancy District (district) and its program partners, St.

George City and Ash Creek Special Service District, to produce a local, reliable, drought-proof water source that can meet our water needs now and in the future. Through new infrastructure investments, the system will produce more than 24,000 acre-feet of water per year by 2046, enough water to serve more than 40,000 homes. The system will use new and existing water infrastructure network to purify, store, and deliver water throughout

Washington County. Additional information about the Program can be found on the district’s website.

The purpose of the Design Deliverable Requirements document is to outline the type of deliverables needed for projects, introduce general milestones for all projects and summarize the expectation of quality for each design deliverable.

2 Program Procedures for Design Consultant

The guidelines presented below are provided as a baseline of procedures to be employed by the design consultant.

2.1 Organization Chart

The design consultant will provide an organization chart for the project which identi8ies the design team, including discipline leaders and quality reviewers.

2.2 CAD/BIM

Confirm all CAD sheets and BIM models are compliant with program standards.

2.3 Scheduling

A detailed design schedule will be created by the design consultant using P6 or Microsoft

Project. Depending upon project delivery method (i.e., Design-Bid-Build, Progressive

Design-Build), identify key milestones and provide a work breakdown structure that corresponds to these milestones.

The original schedule will be submitted with the scope and fee (or as speci8ied by contract).

Design consultant will manage their work package in conjunction with monitoring milestones for adherence to the project schedule and overall program schedule. The program schedule is developed and maintained by the program partners for all of the reuse projects.

Design consultant will prepare a schedule update monthly and will participate in a monthly meeting with the Program Team to discuss schedule progress, potential issues, and mitigation methodologies. The project risks/risk register will be discussed at this meeting to con8irm the listed items are being appropriately mitigated as part of the design.

The design consultant will schedule a workshop following the district review at each milestone to discuss the work in progress. The design consultant will plan to walk through the design so that reviewers understand the design concept and can gain resolution to comments or questions.

3 Design Stages

Design projects completed for the Program will be developed in 8ive milestones as shown in

Table 3-1 on the following page. Each section in this chapter summarizes each milestone.

Attachment A - Design Stage Milestone Content summarizes the content expected in each deliverable.

Table 3-1: Design Stages

Stage Gate Produced by End of Stage

Preliminary Design Preliminary Design Report

30% Design 30% Basis of Design Report and Preliminary Design

Documents

60% Design 60% Basis of Design Report and Preliminary Design

Documents

90% Design 100% Basis of Design Report and 90% Design

Documents

100% Design 100% Basis of Design Report and Issued For

Construction (IFC) Documents

3.1 Preliminary Design Report

The planning stage includes planning activities that support the development of a feasibility-level design and cost estimate for the selected project. Feasibility-level cost estimates are typically based on data collected during site investigations that are of suf8icient detail to allow the preparation of preliminary layouts and designs of the selected project.

The Preliminary Design Report includes design drawings to depict facility layout at a level of detail suf8icient to de8ine major cost drivers and obtain quantity takeoffs for cost estimating purposes. The level of detail is suf8icient to support the development of a feasibility level cost estimate, including the layout of proposed facilities (e.g., plan and pro8ile, elevations, typical sections, etc., as applicable); major structural, mechanical, and electrical details; and begin identifying regulatory compliance and mitigation measures.

The level of detail is suf8icient to conduct an environmental analysis consistent with the

National Environmental Policy Act (NEPA) of the analyzed alternatives and begin identifying the range of appropriate compliance and mitigation actions.

3.2 30% Basis of Design Report

Project development under the 30 percent design stage begins after the feasibility-level planning stage and includes design activities and a formal Value Engineering review to reach a 30 percent complete submittal. A “Basis of Design” (BOD) document for the 30 percent design stage identi8ies technical design criteria, design codes, and site-speci8ic design drawings that include plan, elevation, and section drawings. The goal of the BOD is to clearly articulate what will be designed and how that design will be accomplished within the project boundaries.

3.3 60% Basis of Design Report

Project development under the 60 percent design stage begins after the 30 percent stage and includes design activities required to reach a 60 percent complete submittal. The BOD document from the 30 percent design stage is further detailed along with site-speci8ic design drawings that include plan, elevation, and section drawings. The goal of the 60 percent is to incorporate value engineering ideas and involve all technical disciplines in advancing the design.

3.4 90% Design Documents

Project development under the 90 percent design stage begins after 60 percent. This is the

8inal design and includes design activities required to reach 8inal design. A BOD document for the 100 percent design stage identi8ies technical design criteria and design codes. The design plans and specs are prepared to include site-speci8ic design drawings that are completely detailed.

3.5 Issue for Construction (IFC) Documents

The design deliverable is complete, and the Program Team and the regulatory agencies have accepted the detailed design plans and speci8ications as the basis for bidding. Outstanding comments by regulators and Program Team should be addressed prior to bidding.

3.6 Opinion of Probable Construction Cost

Design consultant will prepare an Opinion of Probable Construction Cost (OPCC) estimate for all projects when required as per the stage gates outlined in the Project Delivery

Lifecycle Framework. Consultants working on the design packages shall provide quantity take-offs (provide lists of major equipment or materials by discipline. Excel spreadsheets preferred), vendor cost proposals, material quotes, and detailed drawings and speci8ication documents as required per each design stage to assist the district and OA with project controls and overall program management.

4 Quality Review

Design consultant is responsible for the quality of the deliverable. Quality review shall be completed prior to submission to the program partners and other agencies. Consultants shall submit documentation that a quality review has been completed using their own internal form or they may use Attachment B provided in this document.

• Conduct individual discipline and discipline coordination review for the design.

• Conduct a formal clash detection review using 3D CAD/BIM models.

• Complete a constructability review and incorporate revisions into the preliminary design stage. This review should be completed by staff with significant construction/construction management experience or in collaboration with the

CM/GC contractor where applicable.

• Comment logs for all district/Program Partner/funding agency or regulatory reviews should be prepared and tracked with a formal response to all comments indicating how each comment has been addressed. The district may use the OA to assist with this effort.

Milestone reviews will be conducted according to Table 4-1. District/Program Partner review activities will verify content and con8irm the content of the submittal. Some milestone deliverables will also be reviewed by Reclamation and/or the State of Utah.

Reclamation will review deliverables for components which are part of their funding program. Other funding agencies may also be provided an opportunity to review a milestone deliverable based on the requirements.

Table 4-1: Milestone Review

Stage Gate Produced by End of Stage

Program

Team

Review

Reclamation

Review

State

Review

Preliminary Preliminary Design Report Yes Yes* Yes**

30% Design

30% Basis of Design Report and Preliminary Design

Documents

Yes Yes*

60% Design

60% Basis of Design Report and Preliminary Design

Documents

Yes

90% Design 100% Basis of Design Report and 90% Design Documents Yes

100% Design

100% Basis of Design Report and Issued For Construction

(IFC) Documents

Yes* Yes

*Milestone review is required by the U.S. Bureau of Reclamation (Reclamation) prior to funding being awarded for the next stage, per Notice of Funding Opportunity No. R23AS00433

(September 2023).

**Preliminary Design Reports for treatment facility projects should be submitted for review to the appropriate state agency to facilitate engagement and compliance throughout the design process.

5 Terms, De;initions, and Acronyms

Please refer to the Abbreviation/Acronym Guide for clari8ications of any unfamiliar terms or acronyms found in this document.

6 Revisions

The Program Engineering and Construction Lead maintains and updates this plan, with revisions issued annually or as needed to re8lect changes in operations or delivery requirements. All released updates are documented in Table 6-1 below. This plan is a living document, with updates made as the Regional Reuse Program evolves.

Table 6-1: Revision History

Date Version Description Author Approved by

4/3/2025 1 Initial Draft Margaret Regan Clint Rogers

6/12/2025 2 Revised Draft Kyle Eltsosie Clint Rogers

7/28/2025 3 Revised to address cost estimating

Clint Rogers Trinity Stout

11/21/2025 4 Revised to address cost estimating

Clint Rogers Trinity Stout

5/13/2026 5 Revised based on district comments

Kyle Eltsosie/Clint

Rogers

One Water Regional Reuse Program PMP

Attachment A

A-1

Attachment A - Design Stage Milestone Content

Preliminary Content Geotechnical Structural Process

Mechanical

Civil (site and conveyance) Instrumentation Architectural Electrical

Building

Mechanical

Conceptual

Report

Review available data, reports, historical designs, operations, and maintenance records

Summarize previous reports x x Review existing architecture and controls x

Identify codes, standards, and regulations x x x Determine initial area classi8ications

Document 8ire protection requirements

Identify major constraints Site constraints;

special construction

Review and incorporate district preferences/standards x x x x x x x

De;ine hydraulics - historic and future (integration of new and existing)

Initial sizing Initial sizing

Condition assessment x x De8ine datum x x x x

Prepare desktop geotechnical review

Review desktop Review desktop

Conceptual foundation requirements

Conceptual bedding/paving requirements

Identify rehabilitation/modi;ication/tie-in requirements x x x Identify tie-in points

Identify renovations and new buildings x x

Identify materials of construction x x x x

Identify loads x as required Conceptual loads/sizing;

establish voltages

Conceptual loads

A-2

Preliminary Content Geotechnical Structural Process

Mechanical

Civil (site and conveyance) Instrumentation Architectural Electrical

Building

Mechanical

Identify major equipment x x x

Identify redundancy/standby requirements x x Redundancy and

UPS

requirements x

Summarize design requirements/criteria x x x x x x x

Recommend package for the next design milestones (overall)

Summarize preliminary permitting requirements

(overall)

Develop design concept Conceptual structure(s)

Conceptual alternatives;

evaluation;

conceptual model

Conceptual routing options, analysis, and preferred route selection

Conceptual control strategy;

device types and

SCADA

integration requirements

Conceptual architectural space

Conceptual power supply;

site service requirements;

distribution components;

electrical strategy

Conceptual HVAC strategy

Conceptual

Drawings

PFDs Routing plan; site layout; piping layout

Control architecture

Sketches and elevations

(rendering if in scope)

Electrical room layout

Major equipment

Site access plan(s)

Site plan Code analysis Overall single line

Electrical site plan

OPCC Provide OPCC and include quantity take-offs, vendor proposals and material quotes to support

A-3

30% Content Geotechnical Structural Process

Mechanical

Civil (site and conveyance) Instrumentation Architectural Electrical

Building

Mechanical

Basis of

Design

Report

Collect ;ield data Soils investigation and groundwater characterization;

Geotechnical Data

Report

Site/alignment survey, subsurface utility engineering

(SUE)

investigation

Identify environmental, cultural, and historic areas and features of concern x

Re;ine and ;inalize code basis x x x x x x x

Design basis/criteria re;ined and ;inalized x x x x x x x

Identify permit/agency approval requirements x x x x x

Safe work practices

Fire protection Area classi8ication

Area classi8ication

Area classi8ications

Pedestrian and traf8ic plan

Access/ egress requirements

Safe work practices

Stormwater management plan

Noise control measures

Fire alarm requirements

Fire protection

Flood protection Lighting

Design loads Design loads and de8lection

Re8ine and

8inalize process model

Space requirements

List of electrical loads

HVAC loads

Seismic design Mass balance Load demand study for new or modi8ied installations to ensure no existing

A-4

30% Content Geotechnical Structural Process

Mechanical

Civil (site and conveyance) Instrumentation Architectural Electrical

Building

Mechanical transformer overloading

Large motor starting analysis

Power supply and distribution

Standby power

Standby requirements

Hydraulic Pro;ile/Flow splitting/surge analysis x Pipe sizing, horizontal, and vertical alignments

Geotechnical Data/Interpretive

Data

Foundation and site grading recommendations;

soil/rock anchor recommendations

Basic substructure/ foundation

Cut and 8ill

Settlement or limiting unit resistance

Settlement monitoring

Subsurface pro8iles

Soils

Management

Groundwater characterization

Hydrostatic uplift/ dewatering protection

Dewatering

Earthwork recommendation

Pipe bedding, excavation and back8ill

Site drainage requirement

A-5

30% Content Geotechnical Structural Process

Mechanical

Civil (site and conveyance) Instrumentation Architectural Electrical

Building

Mechanical

Trenchless construction requirements

Area classi8ication

Trenchless

Frost considerations

Lateral earth pressures

Structures Basic superstructure

Footprints and massing

Floor slopes and drainage

Design insulation

Monorail/ crane locations and capacities

Identify rehabilitation/modi;ication/tie-in requirements

Connections to existing structures

Connections to existing process

8low streams

Connections to existing utilities

Integration with existing control systems

Compatibility with existing facilities

Connections to existing utilities;

identify needs for upgrades

Connections to existing utilities;

identify needs for upgrades

Identify crossing agreements/ easements

Re8ine controls

Major utility con8licts

Automation strategy

Review corrosion protection requirements

Cement types x x x

Finalize materials of construction x x x Select control hardware and software

Select architectural

8inishes

Select 8ield instruments

Finalize equipment list Equipment list and pre-x Equipment list and pre-x

A-6

30% Content Geotechnical Structural Process

Mechanical

Civil (site and conveyance) Instrumentation Architectural Electrical

Building

Mechanical purchase requirements purchase requirements

Equipment pre-selection and sizing

Preliminary

Input and output list

Equipment motor sizing

Data sheets x x x x

Equipment tag numbers x x x x

Equipment compatibility check x x Equipment ratings and general wiring methods

Power and control requirements x x x x

Energy ef;iciency /conservation provisions x x

Ancillary systems Odor control measures

Site restoration and landscaping

Equipment protection and control

Chemical

Assess use of smart control

Emissions requirements for generation

Network and communications system strategies

Remote

Remote

Maintenance of Plant

Operations (MOPO)

Scheduled plant interruptions during construction

Scheduled pipeline interruptions

Preliminary

Drawings

Floor plan Complete PFDs Site base mapping

3D building models

Single line diagrams

Mechanical room

A-7

30% Content Geotechnical Structural Process

Mechanical

Civil (site and conveyance) Instrumentation Architectural Electrical

Building

Mechanical

Building layout plan

P&IDs Ultimate site development plan

P&IDs Building layout plan

Electrical room and site layout

P&IDs

Building section Equipment layout

Facilities layout Control

Architecture

Building elevations

Equipment elevations

Preliminary plumbing plan

Major piping layout

Site road layout Control components

Major raceway and cable runs

Roof drainage layout

Preliminary process plan and section

Site drainage Block diagram Area

Classi8ication plan

Piping layout Control room

Power and

Lighting plan

Piping con8lict resolution

Land

De8ine Rights-of-

Way

Speci;ications Table of contents for section to be included x x x x x x x x

Major equipment specs

Major equipment specs

Process Control

Narratives

(PCNs)

Process Control

(PCNs)

OPCC Provide OPCC and include quantity take-offs, vendor proposals and material quotes to support

A-8

60% Content Geotechnical Structural Process

Mechanical

Civil (site and conveyance) Instrumentation Architectural Electrical

Building

Mechanical

Basis of

Design

Report

Changes from 30% design submittal x x x x x x x x

All items from design pre-design plus:

Design calculations and assessments complete.

x x x x x x x

Equipment data sheets with location, capacity, motor size, weights, and control data x x x x

Final equipment tag numbering x x x x

Demolished tag list x x x

Regulatory/ permitting submissions.

x x

Easements, Rights-of-Way, and land acquisition.

x

Pipe stress TM Updated Load list.

Hydraulic Pro;ile/Flow splitting/surge analysis

Final TM

Drawings Changes from pre- design submittal.

x x x x x x x

Draft valve and gate schedules x x x

P&IDs x · x x x

Final control loop drawings

Electrical single line diagrams updated.

Final 8ield element drawings .

Floor plans, framing plans, Final site layout. Wiring Diagrams

A-9

60% Content Geotechnical Structural Process

Mechanical

Civil (site and conveyance) Instrumentation Architectural Electrical

Building

Mechanical foundation plans, sections.

Final Hydraulic

Pro8ile

Final roadway and pedestrian walkways.

Building systems, grounding, plans

Pipeline plan/pro8iles

Panel, cable, luminaire schedules

Surface/grading design

Lighting, power plans started

Sections x x

Standard details

Speci;ications All sections x x x x x x x x

Process Control

Narratives

(PCNs)

Process Control

(PCNs)

Device net information

Discrete I/O list

Shut down key

Alarms list

OPCC Provide OPCC and include quantity take-offs, vendor proposals and material quotes to support

A-10

90% Content Geotechnical Structural Process

Mechanical

Civil (site and conveyance) Instrumentation Architectural Electrical

Building

Mechanical

Basis of

Design

Report

Finalize x x x x x x x x

All items from design pre-design plus:

Project sequencing plan. x x x

Start-up, Training, and

Commissioning

Plan.

Start-up, Training, and

Commissioning

Plan.

Arc Flash Review and equipment

Final valve and gate schedules x Verify buried pipes and valves included in valve and gate schedules x x

Identify long lead items and potential early procurement x x x

Drawings Complete all drawings x x x x x x x x

Speci;ications Complete all sections x x x x x x x x

OPCC Provide OPCC and include quantity take-offs, vendor proposals and material quotes to support

A-11

Issue for

Construction Content Geotechnical Structural

Process

Mechanical

Civil (site and conveyance) Instrumentation Architectural Electrical

Building

Mechanical

Basis of

Design

Report

Complete x x x x x x x x

Drawings Complete x x x x x x x x

Speci;ications Complete x x x x x x x x

OPCC Make any necessary updates to the OPCC

Attachment B

QA/QC Process

Certification

B-1

Regional Reuse System Deliverable Information:

Project Stage:

Work Product:

Document Version:

Date

The following certi8ies that this deliverable has been prepared and reviewed in accordance with Consultant’s Quality Management Plan.

Scope of the Review/

Discipline Reviewer Signoff & Date

Quality Manager

Project Manager

Design Manager

Geotechnical

Structural

Process Mechanical

Civil (site and conveyance)

Instrumentation

Architectural

Electrical

Building Mechanical

Note that the scope may require other participants. De;ine as appropriate to project.