Oxidation ponds are very deep ponds.

Water microbiology is the study of microorganisms that live in water, such as bacteria, fungi, yeast, viruses, protozoa, and algae.  Here are some things to know about the microbiology of domestic water and wastewater: Domestic wastewater: This wastewater comes from residential places, including sinks, toilets, and laundry. It contains a range of chemicals, soaps, detergents, bacteria, and pathogenic microbes. Microorganisms in wastewater: Most bacteria in wastewater are saprophytic and harmless to humans. However, wastewater may also contain pathogenic bacteria that cause typhoid,... Show more

Water microbiology is the study of microorganisms that live in water, such as bacteria, fungi, yeast, viruses, protozoa, and algae. 

Here are some things to know about the microbiology of domestic water and wastewater:
Domestic wastewater: This wastewater comes from residential places, including sinks, toilets, and laundry. It contains a range of chemicals, soaps, detergents, bacteria, and pathogenic microbes.
Microorganisms in wastewater: Most bacteria in wastewater are saprophytic and harmless to humans. However, wastewater may also contain pathogenic bacteria that cause typhoid, dysentery, and other intestinal disorders.
Diseases from water: Some diseases come from microorganisms found in water. For example, drinking water can contain toxins produced by cyanobacteria such as Anabaena and Microcystis.

Microorganisms in water
Some infectious microorganisms found in water include:
Bacteria, such as Shigella, Escherichia coli, Vibrio, and Salmonella
Viruses, such as Norwalk virus and rotaviruses
Protozoa, such as Entamoeba, Giardia, and Cryptosporidium

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