Engineering Firms

Clients We Serve

Technical Expertise for Gas Infrastructure Projects

Why MRR

MRR is the odorization specialist engineering firms across North America bring in when a project touches natural gas. Mechanical, environmental, and consulting engineers call on us for odor fade investigations in high-rise and critical buildings, decommissioning of refinery and station assets, odorant spill response, and odorization system design support. Whether the utility relationship is yours or ours, MRR delivers the odorization scope inside your project team, and hands you the independent specialist’s report your client can rely on.

Typical

Engineering & EPC

Challenges

1

Designing Odorization Systems That Perform

Engineering designs must ultimately translate into systems that operate reliably under real-world conditions. Variations in gas flow, pipeline materials, environmental conditions, and system configurations can affect odorant performance in ways that are not always apparent during the design phase.

How We Help

Design & Specification Support

System design reviews, equipment selection, and specification support from a team that has engineered odorization for every major injection technology.

Engineered Products

Custom odorization equipment, certified bypass odorizers, and PE-stamped packages built to project specifications.

Pipeline Conditioning & Commissioning

MRR developed the engineering behind modern pipeline conditioning, compliant with CSA Z662 and B149.1, verified through MAV™ analytical validation.

Utility Equipment Programs

Specifying, supplying, and commissioning odorization equipment for utility clients, as your partner.

2

Odor Fade in High Rises and Critical Buildings

High rise towers, hospitals, universities, and data centers create conditions that erode odorant detectability: long pipe runs, new pipe materials, and intermittent gas usage. Odor fade in an occupied building is a life-safety issue and must not be left untreated.

How We Help

Odor Detectability Verification

Scheduled detectability audits for buildings and portfolios, documenting that gas remains reliably detectable floor to floor, year after year.

Odor Fade Resolution

Diagnosing and correcting odorization performance issues in existing pipelines.

New Piping Conditioning

Conditioning new building gas lines before occupancy, with continuous monitoring that surfaces leaks early.

3

Decommissioning, Spills, and Legacy Odorant Risk

Aging odorant infrastructure and odorant releases put engineering firms in the same position: a hazardous, unfamiliar material their client expects them to handle. Whether it is a refinery tank that has outlived its service or a spill with the community calling, MRR brings the crews, containment, and specialized procedures to resolve it safely, and the documentation to close it out.

How We Help

Tank & Equipment Decommissioning

Safe treatment, removal, and replacement of odorant tanks and injection equipment, up to and including large refinery assets.

Odorant Transfer & Relocation

Odorant recovered, held, and returned to service, fully contained at every step.

24/7 Emergency Spill Response

Rapid mobilization to contain, treat, and neutralize odorant spills, protecting personnel, communities, and waterways.

Site Remediation

Neutralization and treatment of odorant-impacted soil, equipment, and infrastructure, leaving sites clean and odor free.

MRR Key Services for Engineering & EPC

Compliance & Validation

From MAV™ analytical validation to risk assessments and audit-ready records, MRR gives operators a data-driven, defensible view of odorization performance, catching odor fade risks and compliance gaps before they become incidents.

Custom Engineered Odorization Solutions

MRR develops specialized odorization solutions for unique operational requirements, including low-flow systems, odorant delivery trucks, custom injection equipment, and other engineered systems built to address site-specific challenges.

Decommissioning

Using specialized procedures developed through decades of odorization experience, MRR safely decommissions aging or obsolete odorant equipment: removed, treated, and disposed of without odorant release, keeping stations audit-ready.

Engineering Support and Odorization Consulting

MRR provides engineering support and consulting services, including system design reviews, odorization performance assessments, and guidance for industrial, commercial, and institutional gas systems where odor fade risks may occur.

Odor Detectability for Critical Facilities

Our team assesses odor detectability, identifies operating conditions that may contribute to odor fade, and provides technical guidance to ensure gas remains reliably detectable throughout complex building and facility infrastructure.

System Design & Installation

Fully engineered, PE-stamped odorization packages: designed, fabricated, and installed by MRR, from CSA and CRN certified bypass odorizers to complete stations. Optional orbital welding reduces field joints and potential leak points.

Client Success Stories

Working with You Towards a Common Goal

Natural gas pipeline conditioning equipment at a shopping mall construction site in New Jersey.
New Jersey Mall Gas Line Conditioning
Conditioning new gas lines inside a mall under construction — with continuous monitoring that surfaced previously undetected leaks.
Natural gas odorization equipment being decommissioned across four stations at a site in Nebraska.
Four-Station Retirement, 2,300 Gal.
Retiring odorization infrastructure across four stations, recovering 2,300 gallons of odorant for continued service.
1,000-gallon modular gas odorization building installed at a site in Georgia.
1,000-Gallon Modular Building
A 1,000-gallon modular odorization building, fabricated at the MRR shop and set on its foundation as a single integrated unit.
Refinery storage tank being decommissioned at an industrial site in Illinois.
5,000-Gallon Tank Decommissioning
Replacing a 5,000-gallon ethyl mercaptan tank at a refinery, with 1,800 gallons of odorant held and returned to service.
Upward view of a modern high-rise apartment tower in Manhattan with reflective glass windows and protruding balconies against a blue sky.
Manhattan Odor Fade Resolution
Odor fade in the new gas piping of a Manhattan high-rise, eliminated in two weeks with no odorant intentionally released to the neighborhood.
Our Approach

How We Handle Critical Tasks in a Hyper-Regulated Industry

People's Safety

Two men in a warehouse having a conversation; one wears a high-visibility jacket, the other a plaid shirt.

Innovation

MRR negative pressure room door, an example of engineered safety innovation

Environmental Safety

Aerial view of a building surrounded by autumn trees, fields, a pond, and a large body of water in the distance.

Nothing Left to Chance

For your next job, trust the team that has been setting the standard in gas odorization since 1996.