Giardia lamblia (protozoan)

GENERAL INFORMATION
Giardia lamblia is a single-celled protozoan parasite that lives in the intestine of infected humans or animals. It is found on surfaces or in soil, food, or water that has been contaminated with the feces from infected humans or animals.

HEALTH EFFECTS
Giardia lamblia can cause symptoms such as nausea, cramps, diarrhea, and associated headaches.

Standard value 1: 
0.00
Standard units 1: 
count/100gal
Input units: 
count/100gal
Display name: 

Giardia lamblia

Contaminant group: 
Typical range in Ohio: 
Assumed to be in any untreated surface water. Detection in water well suggest direct surface water influence.
Major sources in drinking water: 
Fecal sources from warm blooded animals. Assumed to be in untreated surface water. Not typically found in properly constructed water wells. Detection in water well suggest direct surface water influence.
Treatment options: 

TREATMENT OPTIONS
Giardia lamblia is resistant to low levels of chemical disinfection such as chlorine. Use ultraviolet Light (NSF Std 55 Class A), NSF Std 53 one micron filters, or slow sand filter.

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