Sampling Plan: Design and Development
A number of items need to be considered when designing any sampling plan. However, when dealing with hazardous waste classification, the main consideration is:
Sampling and sample management of waste and other materials for analysis and testing pursuant to this article shall be in accord with the sampling planning, methodology and equipment, and the sample processing, documentation and custody procedures specified in chapter nine of “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,” SW-846, 3rd edition...
Title 22 CCR §66261.20(c)
SW-846 contains sampling and analytical methods related to hazardous waste regulations. Chapter 9 describes sampling collection and sampling data considerations: design, development and implementation.
Sampling design and development also depends on other factors, such as:
- the sampling equipment available
- the type of sampling containers necessary
- preservation methods required for the samples until analysis
- keeping a chain of custody to prevent sample tampering and contamination
- health and safety issues while collecting the samples
For a sampling plan to be effective:
- define the objectives
- choose a strategy appropriate for the type of data
- analyze the data for reliability and validity once it has been collected
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