A Statistician's View of the U.S. Primary Drinking Water Regulation on Coliform Contamination.

Abstract

The new U.S. regulation for monitoring possible coliform contamination of drinking water is based on a presenceabsence assay, in contrast to the previous regulation that was based on coliform density assays. A water is said to be in compliance if the fraction of 100-mL sample volumes that contain coliforms is judged to be less than 0.05. The rule is… (More)
DOI: 10.1021/es00060a009

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