Update to EPA Method 1623.1 for Detection of Cryptosporidium: Tips and Common Deficiencies in Preparation for Round Two of LT2 Testing

Oral Presentation

Prepared by D. Waller
NJDEP - Office of Quality Assurance, 401 E. State Street, PO Box 420, Mail Code 401-02D, Trenton, NJ, 08625, United States


Contact Information: debra.waller@dep.nj.gov; 609-984-7732


ABSTRACT

Round two testing under US EPA Long-Term Enhanced Surface Water Treatment Rule 2 (LT2) will begin in 2015. Several changes have occurred that effect laboratories performing this testing. Among these changes include an update to the EPA-approved testing method, EPA Method 1623.1. Changes to this method will be covered. Additionally, improved Quality Control/Quality Assurance measures for this method will be covered.

Several method tips and common deficiencies found in labs that implement this type of testing will also be covered from a State Assessors point of view.