Press Release – ASI’s accreditation for LT2 Cryptosporidium analyses affirmed by NH-ELAP.


Analytical Services, Inc. (ASI) is pleased to announce that the New Hampshire Environmental Laboratory Accreditation Program (NH-ELAP) has continued ASI’s accreditation for EPA Methods 1623 and 1623.1 (Cryptosporidium and Giardia) without interruption.  Accordingly, ASI remains approved by more than 25 states to perform LT2 compliance monitoring.


On March 28, 2016, Analytical Services, Inc. (ASI) unexpectedly received notification from the Pennsylvania Department of Environmental Protection (PA-DEP) of its suspension of ASI’s accreditation for providing analyses of untreated drinking water supply samples for Giardia and Cryptosporidium from Public Water Suppliers (PWS) in Pennsylvania based on ASI’s alleged failure to recover acceptable levels of Giardia and Cryptosporidium in water samples prepared by PA-DEP.  ASI disagreed with PA-DEP’s cursory conclusions and invited ASI’s primary accrediting body, the New Hampshire Environmental Laboratory Program (NH-ELAP) to conduct an audit.  On April 1, 2016, NH-ELAP conducted an on-site audit focused on the PA-DEP allegations and the audit reported no findings (deficiencies) at ASI.   

A second special on-site audit was conducted on May 10 – 12, 2016 jointly by NH-ELAP and the United States Environmental Protection Agency (USEPA).   This second audit was extremely rigorous and thoroughly investigated every step in ASI’s performance of EPA Methods 1623 and 1623.1.  In accordance with normal audit practices, the auditors engaged ASI in an interactive process culminating in NH-ELAP’s determination on August 31, 2016 that ASI’s audit responses were acceptable and ASI’s full NH-ELAP accreditation was maintained. 

About ASI

  Analytical Services, Inc. (ASI, located in Williston, VT) is nationally recognized as an expert laboratory for protozoa analysis.  Accordingly, we have been involved in numerous USEPA-sponsored protozoa research projects, including the USEPA’s multi-laboratory validations of EPA Method 1623.1 (2012), Method 1623 (1999) and Method 1622 (1998).  Over the last 20 years, ASI has analyzed more than 30,000 samples for the detection of Cryptosporidium and Giardia using EPA approved methods, and is currently processing more than 300 samples per month for LT2 compliance.