An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

SAM Companion Documents

The following documents and tools have been developed by EPA to provide information regarding a contamination event. The information included in the documents is intended to be complementary to information provided in the analytical methods listed in Selected Analytical Methods for Environmental Remediation and Recovery (SAM). As additional documents containing similar complementary information become available, they will be added to the list below.