What should be done if a sample cannot be delivered within the specified time frame?

When a sample cannot be delivered within the specified time frame, contacting the lab for guidance is the most appropriate action. The laboratory has established protocols and expertise regarding the handling and processing of samples that may face delays. By reaching out, you ensure that you receive pertinent instructions based on the type of sample, the nature of the testing required, and the potential for sample degradation over time.

The lab may advise on whether the sample can still be accepted, how to preserve it further, or if it is necessary to collect a new sample altogether. This approach helps maintain the integrity of the testing process and ensures accurate results, which is critical for any water quality evaluation.

In contrast, discarding the sample immediately would prevent any chance of analysis, while labeling and waiting for instructions could lead to unnecessary delays without taking any proactive steps. Testing the sample yourself may not align with the required standards and could compromise the results.