The U.S. Environmental Protection Agency (EPA) has developed a set of regulations designed to reduce emissions of volatile organic compounds (VOC) and volatile air pollutants (VHAP). These regulations, known as leak detection and repair (LDAR) procedures are essential for businesses that deal in petroleum and chemicals. Any organization that deals in these potentially hazardous substances is required to comply strictly with the EPA LDAR regulations. Hetek Solutions offers a brief explanation of the regulations and some of the tools and methods you can use to ensure compliance.
The Five Elements of Complying with EPA LDAR Regulations
Although the EPA has developed the LDAR program to be generally applicable, in practice, they vary from state to state and are often specific to each company. That being said, all LDAR programs have five elements in common. They are as follows:
Identifying Failing Components
Under the LDAR program, each component in petroleum or chemical distribution and storage systems needs to be individually identified and assigned an ID. The corresponding physical location is also verified. Ideally, these components should be logged and tracked using a computerized maintenance management system (CMMS). They can then be monitored on an ongoing basis. When leaks appear in the system, the damaged parts can be more quickly located and repaired or replaced.
Defining What Constitutes A Leak Under Regulations
What exactly is a leak? It may seem an obvious question, but it is an important one. The exact parameters of a leak need to be defined and understood, so that they can be appropriately dealt with. The EPA does not necessarily prescribe what this definition should be, only that each organization agrees on and applies fixed parameters that all teams can then use as their guideline.
According to the LDAR, a leak refers to any detected elevations in concentration levels of certain high-risk substances above a certain threshold. The thresholds in question differ according to the particular regulation, the type of component and the substance being measured. Leak detection is thus primarily carried out by measuring these concentration levels.
The Hetek Flow Sampler is designed specifically for this purpose. It is a portable, battery-powered, and intrinsically safe certified device, making it ideal for use in both expansive industrial facilities and confined spaces. It uses a high-flow rate sampling method to ensure the complete capture of all gases escaping from a particular component. This method allows for a precise measurement of the flow rate and the concentration of gas in the sample.
Monitoring Components That Need Repairing
A monitoring and maintenance schedule should be put in place to check each identified component for signs of leaks. Monitoring intervals should be in line with the expected lifespans and performance parameters of each component.
Repairing Components
When leaks are found, the relevant components should be repaired within a specified time frame. The first repair attempt should ideally be made within five days of the leak being detected.
Recordkeeping
All monitoring, maintenance and repair activities must be scheduled and recorded on the CMMS, so that they can always be checked and referred to when necessary.
Hetek Solutions Inc. can help companies ensure compliance with EPA LDAR regulations. Contact us for more information on our products solutions, developed by experts for precise, compliant leak detection and repair.
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