Which sample collection method does the DEQ recommend?

The recommended sample collection method by the DEQ often involves using a brass tube for obtaining samples from heating oil tanks. This choice is supportive of achieving accurately representative samples without the risk of contamination that can occur with other materials. Brass is less reactive compared to other metals and doesn't interfere with the chemical constituents of the sample, ensuring the integrity of the sample during transport and analysis.

Sampling methods are crucial in environmental assessment, particularly in the context of potential soil or groundwater contamination from heating oil storage tanks. Utilizing the appropriate material for sample collection helps maintain the reliability of the data gathered, which is essential for correct assessment and remediation planning processes.

While other materials like plastic tubes, metal canisters, and glass bottles have their uses in various sampling situations, they may introduce variables that can alter sample properties, thus reducing the reliability of analysis or testing results.