This easy to navigate site contains valuable information on certified environmental testing methods. An extensive list of EPA approved methods is available in defined categories: chemical, biology, toxicology, physical, microbiology, and regulatory. This site appears to be geared towards instructors wishing to find information to develop appropriate laboratory activities. Search tools allow for single- or multiple-analyte searches. Method summaries that include basic information are available to compare one method with another for the purpose of method selection. Overall, this is a valuable tool for educators, students, and professionals active in the environmental monitoring/regulatory field.
The website is available here .