Operations and Procedures:
Sample Analysis
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### Confirmatory Analyses

As the incident progresses from initial response to remediation and recovery, confirmatory analyses performed using a consistent approach by qualified laboratories performing full QC will be needed.

A list of potential method options to conduct confirmatory analyses, found in WCIT, is as follows:

Standardized Analytical Methods for Environmental Restoration following Homeland Security Events (SAM) EPA Approved Drinking Water Methods Other applicable EPA methods (e.g., SW-846 or 40 CFR 136 methods) Other methods performed by the laboratories (from Standard Methods or ASTM International) |

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