• AWWA JAW19885
Provide PDF Format

Learn More

AWWA JAW19885

  • Journal AWWA - Evaluating Relative Stringencies of Existing and Proposed Microbiological MCLs
  • Journal Article by American Water Works Association, 11/01/1986
  • Publisher: AWWA

$15.00$30.00


A mathematical model was used to calculate the effects of sample volume and number of samples collected each month on the probability of detecting coliforms in water distribution systems containing various levels of contamination and to compare proposed frequency-of-occurrence maximum contaminant level rules with existing microbiological rules. The number of samples examined appeared to have a profound effect on the stringency of a frequency-of-occurrence rule, with systems containing borderline levels of contamination more likely to meet the rule if only a few samples are collected each month. It was concluded that a frequency-of-occurrence rule with a coliform density limit of 1/100 mL, instead of the current 4/100 mL, would be much closer in stringency to the existing average-density rule. Includes 10 references, tables, figures.

Related Products

AWWA WQTC57029

AWWA WQTC57029

LIMS is Not Only for the Laboratory, It's for Clients Too..

$12.00 $24.00

AWWA ACE70831

AWWA ACE70831

Lead (Pb) in Drinking Water and Associated Public Health Risk..

$12.00 $24.00

AWWA ACE56313

AWWA ACE56313

Which Nitrate Removal Technology is Right for You?..

$12.00 $24.00

AWWA CSC94001

AWWA CSC94001

Feed Forward Chlorine Dose Control to Counteract Sudden Ammonia Increase in Water Purification Plan..

$12.00 $24.00