Evansville’s Natural Gas Infrastructure: Odorization and Pipeline Conditioning for Safer Energy Delivery
- Mitch

- 1 day ago
- 3 min read
Introduction: Energy Safety in a River City
Evansville, Indiana, sits along the Ohio River and serves as a major hub for commerce and manufacturing in the Midwest. With thousands of homes and businesses relying on natural gas for heating and industrial processes, safety is paramount. Yet, one fact often surprises people: natural gas is naturally odorless. Without intervention, leaks could go unnoticed, creating serious hazards.
Odorization—the process of adding a distinct smell to natural gas—is the first line of defense against accidents. In this article, we’ll explore why odorization matters, how pipeline pickling prevents odor fade, and why Burgess Pipeline Services is the trusted partner for utilities in Evansville.

Why Odorization Is Critical
Natural gas is primarily methane, which has no color and no smell. While this makes it efficient as a fuel, it also means leaks are invisible and undetectable without specialized measures. To solve this, gas companies add odorants—usually sulfur-based compounds called mercaptans—to the gas stream. These chemicals create the familiar “rotten egg” smell associated with natural gas leaks.
This simple addition saves lives. Federal regulations require odorization so that gas is detectable at concentrations far below explosive limits. Odorization is not optional—it’s a critical safety standard.
Odorization Systems: Precision and Reliability
Modern odorization systems are engineered for precision and reliability. These systems include:
Odorant Storage Tanks: Built for durability and equipped with secondary containment to prevent leaks.
Injection Systems: Technologies like wick odorizers, bypass systems, and drip odorizers ensure consistent odorization.
Monitoring and Compliance: Advanced sensors and controllers maintain compliance with federal standards, even during low-flow conditions.
These systems are designed to meet or exceed regulatory requirements, including 49 CFR 192.625, which governs odorization of gas in the United States.
Pipeline Pickling: Preventing Odor Fade
Before a new pipeline is commissioned, it undergoes pickling, a conditioning process that removes oxygen, moisture, and contaminants. This step is critical for preventing corrosion and stabilizing odorant levels. Without pickling, pipelines can experience odor fade, where odorant absorbs into the pipe walls, reducing its effectiveness.
Why does odor fade happen?
Steel pipelines can absorb sulfur compounds, especially when they’re new or have residual moisture. Pickling creates a protective environment inside the pipeline, ensuring odorant remains effective from day one.
Benefits of Pickling:
Extends pipeline life.
Prevents odor fade.
Improves operational efficiency.
Local Challenges and Environmental Considerations
Evansville’s climate and geography present unique challenges for natural gas operations. Seasonal temperature swings can affect gas flow and odorant dispersion. Additionally, environmental regulations in Indiana require strict adherence to safety and containment standards.
The proximity to the Ohio River underscores the importance of environmental stewardship. Burgess Pipeline Services ensures that odorant tanks and containment systems meet or exceed compliance requirements, protecting both people and natural resources.
Burgess Pipeline Services Expertise
When it comes to odorization and pipeline conditioning, experience matters. Burgess Pipeline Services offers:
Expertise in odorization systems for natural gas and LPG.
Advanced pipeline pickling techniques to prevent odor fade.
Compliance with federal and state regulations.
Customized solutions for Evansville’s unique operational needs.
Our team combines technical knowledge with cutting-edge equipment to deliver safe, efficient, and reliable services.
Extended FAQs
Q: What makes natural gas smell?
A: Mercaptans added during odorization.
Q: Why does natural gas smell like rotten eggs?
A: The odor comes from sulfur compounds used as odorants.
Q: What is pipeline pickling?
A: A process that removes contaminants and stabilizes odorant levels before pipeline commissioning.
Q: Can odor fade happen in cold climates?
A: Yes, and pickling helps prevent it.
Q: Is methane odorless?
A: Yes, methane has no smell.
Q: How much odorant is added to natural gas?
A: Enough to detect leaks at one-fifth the lower explosive limit.
Q: What happens if odor fade occurs?
A: Leak detection becomes unreliable, increasing safety risks.
Q: Does natural gas have a color?
A: No, it’s colorless and odorless without additives.
Q: Why is mercaptan used?
A: It provides a strong, distinctive odor for safety.
Q: How does Burgess prevent odor fade?
A: Through advanced pickling and conditioning processes.
Q: What is the federal regulation for odorization?
A: 49 CFR 192.625 governs odorization of gas.
Q: Does odorization affect gas quality?
A: No, it only adds a detectable smell for safety.
Q: What is secondary containment for odorant tanks?
A: A safety feature that prevents leaks from reaching the environment.
Q: How often should odorization systems be inspected?
A: Regular inspections are required to maintain compliance and performance.
Q: Can Burgess handle emergency odorization needs?
A: Yes, we offer rapid response services for urgent situations.
Contact Us
Ready to optimize your pipeline operations in Evansville? Burgess Pipeline Services is your trusted partner for odorization, pickling, and conditioning solutions.
📞 Call us today: 323-609-5009
💬 Live Chat: Available on our website
Choose Burgess Pipeline Services for safety, compliance, and performance.



