The Water Microbiology Laboratory performs bacteriological analyses on water samples submitted by MD state agencies and/or Federal partners from a variety of aquatic sources. Ranging from drinking water to marine beach samples, the Water Lab examines for the presence of indicator organisms and pathogenic bacteria. The laboratory analyzes water samples derived from freshwaters, potable waters (drinking water), marine waters, swimming pool or other recreational waters, waste water, bottle water and other non-potable water.