An official website of the United States government.

Microbiological Methods and Online Publications

EPA scientists have developed a variety of methods to detect, characterize and study bacteria, protozoans, viruses and coliphage. These methods are used by EPA and state and regional water quality managers to protect human health by keeping drinking water safe.

Bacteria

Protozoans

Viruses and Coliphage

Recreational Water Publications

ICR-Related Materials

Note: Sample collection for the Information Collection Rule ended in December, 1998. The following ICR publications are maintained online as informational resources.

Other Publications