Explore the role of beneficial and pathogenic microorganisms in environmental media. Microbial distributions, energetics, and role in biogeochemical cycles will be emphasized. Soil and (waste) water environments will be a focus. Laboratory exercises will develop classic and current methods, and include small group or class projects. May earn credit in only one of SOIL384, SOIL 484 and WSTE 484. Available for graduate credit as WSTE 684. Enrollment Requirements: Prerequisite(s): NRES 251, and either CHEM 106 or CHEM 117, or Instructor Consent.