ADHS will be performing maintenance on the Medical Marijuana systems starting on Saturday, January 24, 2015 at 10 PM expected to be completed by Sunday, January 25, 2015 at 4 AM. During this time, Medical Marijuana Online Registry Applications will be unavailable. We apologize for the inconvenience this maintenance downtime may cause. If the process is completed earlier, the systems will be made available at an earlier time.

Environmental Microbiology


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  • What is a public health laboratory? Watch this animated video to learn how public health laboratories protect the public against diseases and other health hazards.

The Arizona State Laboratory Environmental Microbiology Department conducts microbiological examinations of food and water for sanitary quality and isolation and identification of microorganisms of public health significance. Sanitarians and representatives of federal, state, county, and city agencies responsible for monitoring quality and enforcing regulations governing production and handling of food and water may submit samples for analysis. Private individuals or agencies requesting testing will be referred to their county health department or private laboratories. Please contact the laboratory for information and referrals.