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The Allied Companies LLC · Washington, DC

Program Integration for Complex Infrastructure at Scale.

From multi-billion-dollar water infrastructure programs to mission-critical engineering in live operating environments, Allied delivers integrated engineering, construction coordination, and operational continuity.

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Delivered inside active, 24/7 operating facilities with zero margin for error

Eric Purnell · Managing Partner | Email preferred

DC Office: 5335 Wisconsin Ave., Suite 440, Washington DC 20015,

Charlotte Office: 15720 Brixham Hill Ave, Suite 101
Charlotte, NC 28277

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PROGRAM VALUE SUPPORTED
$ 0 B
PEOPLE SERVED DAILY
0 M
MGD Facility Capacity
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Years on Active Program Support
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SERVICE OFFERINGS

Eight disciplines.
One program team.

Allied operates at the program integration layer – coordinating engineering, construction, controls, security, and owner’s representative services across capital programs of exceptional scale and complexity. Select a discipline below.
Allied’s service framework was forged over a decade of embedded program management at the world’s largest advanced wastewater treatment facility. These aren’t theoretical offerings – each discipline reflects active delivery alongside AECOM, DC Water, and major prime contractors at the $3.8B Blue Plains capital program.

01 . Program Management

Program Management & Integration

We coordinate multi-contract capital programs across design engineers, construction teams, regulatory stakeholders, and operations — keeping complex systems aligned from planning through delivery and lifecycle management. Applied at $15B+ scale on DC Water’s Blue Plains program and now expanding to sovereign tribal nations via our Tribal Economic Development Empowerment Program (TEEP).

02 . Program Management

Engineering in Live Environments

Major capital upgrades delivered inside 24/7 operational facilities — with continuous compliance, coordinated outages, and zero unplanned service interruptions. Direct experience from Blue Plains Advanced WWTP, transferable to tribal water/wastewater systems and other mission-critical infrastructure.

03 . Program Management

Construction Phase Support

From RFIs and submittals to field issue resolution, outage coordination, and real-time problem solving at the intersection of design and execution. Applied daily at Blue Plains and in active tribal infrastructure modernization projects.

01 . Program Management

Program Management & Integration

We coordinate multi-contract capital programs across design engineers, construction teams, regulatory stakeholders, and operations — keeping complex systems aligned from planning through delivery and lifecycle management. Applied at $15B+ scale on DC Water’s Blue Plains program and now expanding to sovereign tribal nations via our Tribal Economic Development Empowerment Program (TEEP).

02 . Program Management

Engineering in Live Environments

Major capital upgrades delivered inside 24/7 operational facilities — with continuous compliance, coordinated outages, and zero unplanned service interruptions. Direct experience from Blue Plains Advanced WWTP, transferable to tribal water/wastewater systems and other mission-critical infrastructure.

03 . Program Management

Construction Phase Support

From RFIs and submittals to field issue resolution, outage coordination, and real-time problem solving at the intersection of design and execution. Applied daily at Blue Plains and in active tribal infrastructure modernization projects.

01 . Program Management

Program Management & Integration

We coordinate multi-contract capital programs across design engineers, construction teams, regulatory stakeholders, and operations — keeping complex systems aligned from planning through delivery and lifecycle management. Applied at $15B+ scale on DC Water’s Blue Plains program and now expanding to sovereign tribal nations via our Tribal Economic Development Empowerment Program (TEEP).

02 . Program Management

Engineering in Live Environments

Major capital upgrades delivered inside 24/7 operational facilities — with continuous compliance, coordinated outages, and zero unplanned service interruptions. Direct experience from Blue Plains Advanced WWTP, transferable to tribal water/wastewater systems and other mission-critical infrastructure.

03 . Program Management

Construction Phase Support

From RFIs and submittals to field issue resolution, outage coordination, and real-time problem solving at the intersection of design and execution. Applied daily at Blue Plains and in active tribal infrastructure modernization projects.

01 . Program Management

Program Management & Integration

We coordinate multi-contract capital programs across design engineers, construction teams, regulatory stakeholders, and operations — keeping complex systems aligned from planning through delivery and lifecycle management. Applied at $15B+ scale on DC Water’s Blue Plains program and now expanding to sovereign tribal nations via our Tribal Economic Development Empowerment Program (TEEP).

02 . Program Management

Engineering in Live Environments

Major capital upgrades delivered inside 24/7 operational facilities — with continuous compliance, coordinated outages, and zero unplanned service interruptions. Direct experience from Blue Plains Advanced WWTP, transferable to tribal water/wastewater systems and other mission-critical infrastructure.

03 . Program Management

Construction Phase Support

From RFIs and submittals to field issue resolution, outage coordination, and real-time problem solving at the intersection of design and execution. Applied daily at Blue Plains and in active tribal infrastructure modernization projects.

01 . Program Management

Program Management & Integration

We coordinate multi-contract capital programs across design engineers, construction teams, regulatory stakeholders, and operations — keeping complex systems aligned from planning through delivery and lifecycle management. Applied at $15B+ scale on DC Water’s Blue Plains program and now expanding to sovereign tribal nations via our Tribal Economic Development Empowerment Program (TEEP).

02 . Program Management

Engineering in Live Environments

Major capital upgrades delivered inside 24/7 operational facilities — with continuous compliance, coordinated outages, and zero unplanned service interruptions. Direct experience from Blue Plains Advanced WWTP, transferable to tribal water/wastewater systems and other mission-critical infrastructure.

03 . Program Management

Construction Phase Support

From RFIs and submittals to field issue resolution, outage coordination, and real-time problem solving at the intersection of design and execution. Applied daily at Blue Plains and in active tribal infrastructure modernization projects.

01 . Security & Resilience

Operational Vulnerability Assessment

Comprehensive threat characterization, asset criticality analysis, and vulnerability assessment for water utilities and critical infrastructure. Includes Blue Plains-level continuity planning, post-9/11 and post-Sandy hardening, and resilience support for sovereign nation assets under TEEP.

02 . Security & Resilience

Physical Security & Access Control

Major capital upgrades delivered inside 24/7 operational facilities — with continuous compliance, coordinated outages, and zero unplanned service interruptions. Direct experience from Blue Plains Advanced WWTP, transferable to tribal water/wastewater systems and other mission-critical infrastructure.

03 .Security & Resilience

Construction Phase Support

From RFIs and submittals to field issue resolution, outage coordination, and real-time problem solving at the intersection of design and execution. Applied daily at Blue Plains and in active tribal infrastructure modernization projects.

Featured Program Experience

Blue Plains Advanced Wastewater Treatment Plant

DC Water’s $3.8B Expansion · World’s Largest Advanced Wastewater Facility · 2.1M People Served
Embedded team coordinating engineering, construction, and operations across one of the most complex infrastructure programs in the United States.

Core Capabilities

What We Actually Do.

Allied operates at the program integration level — the critical layer where engineering, construction, and operations must stay aligned simultaneously across complex, multi-contract capital programs.

Program Integration

01

We coordinate multi-contract infrastructure programs across design engineers, construction teams, and regulatory stakeholders — keeping complex systems aligned from planning through delivery.

Engineering in Active Environments

02

We work inside live, mission-critical facilities where construction cannot interrupt operations — including large-scale wastewater treatment systems under continuous compliance.

Construction Phase Support

03

From RFIs and submittals to field issue resolution and outage coordination, we operate at the intersection of design and execution — where problems get resolved in real time.

Resilience & Infrastructure Security

04

We assess, design, and strengthen critical infrastructure systems against operational, environmental, and regulatory risk — hardening assets the world can’t afford to fail.
Combined vulnerability assessment and resilience frameworks for critical infrastructure — ICS and grid-friendly hardening, continuity
planning, and threat mitigation.

Where We Work

  • Water & Wastewater Infrastructure
  • Municipal & Public Utilities
  • Federal & Mission-Critical Facilities
  • Energy, Transportation & Industrial Systems

Signature Experience

Blue Plains
Advanced WWTP

Allied served as a core member of the program management team for DC Water’s $3.8B expansion of the world’s largest advanced wastewater treatment facility — coordinating across multiple PMCs, construction management contracts each valued in the hundreds of millions, and the most stringent environmental permits in the United States.
Project Size
$ 0 B
People Served
0 M
Years Program Support
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Allied Staff to Resident Advisor & Program Roles
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What Allied Delivered

  • Program-level coordination across multiple engineering disciplines and construction firms
  • Enhanced Nitrogen Removal (ENR) — advanced biological treatment and denitrification systems
  • Electrical modernization — substations, switchgear, arc flash audits, I&C systems
  • Major-scale engineering standards and procedures development
  • Construction-phase RFI resolution and field issue management in live operating environments
  • Integration with regional wet weather control and peak flow management systems
  • Outreach on time and on budget through economic downturns and a global pandemic

Where We Work

  • Water & Wastewater Infrastructure
  • Municipal & Public Utilities
  • Sovereign Nation / Tribal Infrastructure
  • Federal & Mission-Critical Facilities
  • Energy, Transportation & Industrial Systems
  • Strategic Land Development

Expanding Portfolio

New markets.
Same standard.

Allied’s program integration expertise is being applied across new verticals and geographies. Full case studies are available in our capabilities statement.

SOVEREIGN NATION INFRASTRUCTURE

Tribal Economic Development

Allied is expanding its program management expertise to serve sovereign tribal nations — roads, bridges, water systems, housing, energy, broadband, and long-term capital programs. Powered by the same embedded program management model proven at Blue Plains.
  • ACTIVE ENGAGEMENT

Land Development · Charlotte

York County, SC

Allied is supporting infrastructure development in the Charlotte MSA growth corridor — roads, utilities, stormwater — with unique integration linking capital planning to regional systems. Budget: $50M–$1B+ over 15–20 years.
  • Active: Budget Cost in Progress

Long-Range Support · Boston

Lexington, NC

Allied is supporting infrastructure development in the Lexington-Davidson MSA — 35 miles from Charlotte’s South End, 1 hour from Raleigh. Moderate price range, high growth potential. Budget: $50M–$1B+ over 15–20 years.
  • In Progress: Support Phase

SECURITY ENGINEERING

Critical Infrastructure Resilience

Operational vulnerability assessment, resilience frameworks, and hardening for critical water/wastewater, federal, and mission-critical facilities. Includes Blue Plains-level continuity planning and post-9/11 / post-Sandy experience.
  • NEW SERVICE LINE

Work with Allied

Ready to see the full picture?

Our capabilities statement covers our full project history, work methodology, program delivery methodology, and past performance at Blue Plains and beyond.

Request Capabilities Statement
Call Eric Directly

Eric Purnell · Managing Partner eric@allcollc.com

DC Office: 5335 Wisconsin Ave., Suite 440, Washington DC 20015,

Charlotte Office: 15720 Brixham Hill Ave, Suite 101
Charlotte, NC 28277

© 2026 The Allied Companies LLC · Washington, DC

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