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EF/ ICR Logo Levels of Source Water (Untreated) Giardia for IDAHO
JULY 1997

REMINDER: Data Purpose: The ICR data were collected as part of a national research project to support development of national drinking water standards. They should NOT be used to determine local water systems compliance with drinking water standards, nor should they be used to make personal judgements about health risks.

Detection Method Limitations: The ICR method for detecting Cryptosporidium and Giardia has technical limitations.

Results of Zero: A measurement of zero means that no Giardia was found in the sample volume that was analyzed. Zero results do not indicate the absence of Giardia in the source water because the method recovery is low and the amount of sample analyzed is small. In other words, Giardia may be present in source water even if no cysts are counted for the sample volume analyzed. The presence of Giardia may also be mistakenly identified as other organic material such as algae.

Efforts Beyond Regulations: Many large public water systems are voluntarily improving the control of pathogens by participating in the Partnership for Safe Water, an initiative between EPA, the States, and water suppliers to improve the performance of treatment.

Percent Treatment Plants Reporting a Positive Occurrence of Source Water Giardia in IDAHO

* A measurement result of zero means that no cysts were found in the vol ume of water analyzed.

IDAHO Levels of Giardia in Source Water for JULY 1997

IDAHO Levels of Giardia in Source Water for JULY 1997

Level of Total Giardia (#cysts/100L) Number of Water Treatment Plants
1-9 1

How does this state's source water compare to source waters nationally for Giardia?
View national data for the same month.

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