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Environmental Laboratory Approval Program

The Environmental Laboratory Approval Program (ELAP) of the Wadsworth Center was established in 1984, under Section 502 of the Public Health Law and is responsible for the certification of laboratories performing environmental analyses on samples originating from New York State, thus ensuring the accuracy and reliability of these analyses.

Fields of Accreditation

ELAP currently grants certification to commercial, facility self-monitoring and government operated environmental laboratories, in the following fields of accreditation:

  • Air and Emissions (as Certification Manual Item 180.4)
  • Drinking Water (as Certification Manual Item 180.1)
  • Non-Potable Water (as Certification Manual Item 180.2)
  • Solid and Chemical Materials (Solid Waste and Soils) (as Certification Manual Item 180.3)
  • Medical Marijuana (as Certification Manual Item 180.7)

Frequently Asked Questions

Proficiency Test Summaries are provided

Program Updates

ELAP News Item

Solicitation of Interest (SOI) for Laboratories to Perform Testing of Medical Marijuana Products in New York State

Potentially interested commercial laboratories have the opportunity to participate in testing of medical marijuana products in NYS.

Testing opportunities consist of medical marijuana products produced by Registered Organizations registered with the New York State Department of Health (...

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Microcystin Testing

Certification for Total Microcystin Testing

Beginning April 2, 2018, application materials will be available for laboratories to apply for ELAP certification for Total Microcystins. 

Certification for Total Microcystins will be offered in the Drinking Water and Non-Potable Water categories using Total Microcystins by Environmental...

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ELAP News Item

1,4-Dioxane Testing of Drinking Water

Section 1112 of the Public Health Law (emergent contaminant monitoring), enacted by Part M of Chapter 57 of the laws of 2017, requires drinking water to be tested for the emerging contaminant, 1,4-Dioxane, by a laboratory certified by the Department’s Environmental Laboratory Approval Program (...

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