• AWWA WQTC55140
Provide PDF Format

Learn More

AWWA WQTC55140

  • Improving Methods for Isolation of Cryptosporidium Oocysts and Giardia Cysts From Source and Finished Waters
  • Conference Proceeding by American Water Works Association, 01/01/2001
  • Publisher: AWWA

$12.00$24.00


USEPA Methods 1622 and 1623 have demonstrated that Cryptosporidium oocysts and/or Giardia cysts can be recovered reproducibly from small volumes (10 L) of source water. The original components of these methods included Gelman Envirochek filters for sample collection, Dynal immunomagnetic separation (IMS) kits for sample clarification and detection using fluorescein isothiocyanate conjugated monoclonal antibodies (FITC-mAbs). Two other filters (Whatman Cryptest and IDEXX Filta-Max filters) and a FITC-mAb (Waterborne, Inc.) have also demonstrated performance equivalency to USEPA Method 1623 by undergoing multi-laboratory round-robin validation under the USEPA performance based measurements system (PBMS) program. In this study, we present an new technique for the recovery of Cryptosporidium oocysts from high volume finished water samples, and develop and test an alternate technique for elution of cysts and oocysts from 50L source water samples collected on Filta-Max filters. These are examples of the USEPA PBMS approach to method development and testing that allows method improvements to be easily incorporated into existing methods. Includes 10 references, tables.

Related Products

AWWA JAW48088

AWWA JAW48088

Journal AWWA - Water Quality Reports Boost Consumer Confidence..

$15.00 $30.00

AWWA ACE91036

AWWA ACE91036

Desalination of San Francisco Bay Water..

$12.00 $24.00

AWWA WQTC58925

AWWA WQTC58925

Application of Ultrafiltration for Virus Removal Using the LT2ESWTR Regulatory Framework..

$12.00 $24.00

AWWA WQTC62418

AWWA WQTC62418

Characterization of Bromate-Reducing Microorganisms Isolated from Groundwater..

$12.00 $24.00