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Environmental monitoring

Fenceline monitoring - EPA method 325

Complying with environmental protection regulations

US Environment Protection Agency Method 325 requires refineries to continually monitor benzene at fenceline boundaries over an extended period of time at petroleum refineries. 

How NPL can help you

NPL provides a complete solution for EPA Method 325 monitoring: from initial consultancy and set-up through to sample collection and analysis.

We will work closely with you to ensure you are compliant with all requirements of the regulation, and supply all the required equipment, coordinate sampling, testing and reporting results.  

Why choose NPL?

  • Over twenty-five years' experience in environmental monitoring and consultancy
  • Easy to manage mail service to save you time and effort
  • World-class accredited laboratories using the highest quality instrumentation
  • Fast and reliable service
  • A world-leading National Measurement Institute (NMI)
  • Highest ratings in BTEX proficiency testing schemes for over 20 years
  • Experience in undertaking remote European and worldwide boundary fence surveys

Contact us

Work with us

Our research and measurement solutions support innovation and product development. We work with companies to deliver business advantage and commercial success.
Contact our Customer Services team on +44 20 8943 7070