Operations and Procedures:
Sample Analysis
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### Basic Field/Safety Screening Results

Basic Field and Safety Screening data should be provided to the receiving laboratory as soon as it is available and prior to shipping the corresponding samples. This will allow the receiving laboratory to assess and prepare for potential hazards the samples may present upon sample receipt. A copy of the field screening information should be shipped with the samples. Sample collectors should list the Personal Protective Equipment (PPE) used on the COC form. If field screening is inadequate, incomplete, or otherwise compromised, the laboratory may require additional screening before acceptance.

Potential resources for information on field screening include:

- Water Contaminant Information Tool (WCIT)
- EPA Response Protocol Toolbox
- Sampling Guidance for Unknown Contaminants in Drinking Water

Screening analyses do not require the use of a particular procedure; however, there are available procedures for performing screening analyses, such as the All Hazard Receipt Facility (AHRF) protocol, that should be leveraged by laboratories.

Section 3.3.1

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