• AWWA PATH56518
Provide PDF Format

Learn More

AWWA PATH56518

  • Prioritization of Catchment Management in the Sydney Watershed - Construction of a Pathogen Budget
  • Conference Proceeding by American Water Works Association, 09/22/2002
  • Publisher: AWWA

$12.00$24.00


This paper discusses a methodology that has been developed to construct a pathogen budget fordrinking water watersheds, taking into consideration pathogen origin,deposition, inactivation and movement within a watershed. These processescan be described in terms of "stocks" (pathogens) and "flows" (movement ofstocks). In South-Eastern Australia, the majority of pathogen loads into majortributaries occurs during rainfall events so in-stream resuspension may not beimportant. In contrast, during dry weather the transit time within the studiedwatershed was sufficiently long such that in-stream processes becameimportant. Total pathogen unit (TPU) budgets were constructed for theparasitic protozoans Cryptosporidium and Giardia. This approach not onlyenables water utility managers to identify those watershed segments that arecontributing the greatest load of pathogens, but also where managementoptions should be most effective. With improved knowledge of pathogenecology this approach can be further refined to provide budgets of infectiouspathogen units (IPU). Includes 2 references, table, figure.

Related Products

AWWA ACE56362

AWWA ACE56362

Watershed Assessment Using Geographic Information Systems..

$12.00 $24.00

AWWA JAW21576

AWWA JAW21576

Journal AWWA - Evaluating Alternative Coagulants to Determine Efficiency and Cost Effectiveness ..

$15.00 $30.00

AWWA JAW48125

AWWA JAW48125

Journal AWWA - Considerations in As Analysis and Speciation..

$15.00 $30.00

AWWA ACE94279

AWWA ACE94279

Replacing Filters at a Water Treatment Plant: Making the Shoe Fit the Existing Treatment Process..

$12.00 $24.00