Laboratory Accreditation Program

What's New?

• December 16, 2020 - Replaced “Notice to DW Microbiology Laboratories RE: SDWA Microbiology Results” with “SDWA Microbiology Results and Reporting (12/9/2020)” under the Compliance Assistance heading.
• November 16, 2020 – Added Notification of Cyanotoxin Accreditation under the Compliance Assistance heading.
• October 27, 2020 - The Laboratory Accreditation Advisory Committee December 1, 2020 meeting materials are available on the committee webpage.
• October 19, 2020 – ASDWA Technical Bulletin to Laboratories Reporting PFAS Analysis Using EPA Methods 533, 537, or 537.1 added under the Procedures & Methods heading.
• August 31, 2020 – Updated: NELAP Accreditation FAQ, Rev. 2.1, and is available under the Compliance Assistance heading.

Forms & Applications

• Part 1 - Initial/Renewal Application & Instructions
• Part 2 - Methodology Requests
• Part 3 – Add/Change Supervisor Application & Instructions
• Part 4 - Addition of Field of Accreditation (FOA) & Instructions
• Part 5 - Changes to Laboratory Information & Instructions
• Environmental Laboratory Registration Application
• W-9 Form & Instructions (Rev. 11/2005) (PDF)
• Distillation Variance Application (Rev. 10/2012) (Word)
• Limited Use ATP Method Application (Rev. 10/2012) (Word)
• Request to Report Qualified DW Results (Rev. 7/2015) (Word)
• Request to Report Qualified DW Sample Results Instructions (Rev. 7/2015) (PDF)

Proficiency Testing (PT)

• Fields of Proficiency Testing for Drinking Water, Effective 4/28/2012 (PDF)
• Fields of Proficiency Testing for Non-potable Water, Effective 4/28/2012 (PDF)
• Fields of Proficiency Testing for Whole Effluent Toxicity, Effective 5/1/09 (PDF)
• Fields of Proficiency Testing for Solid and Chemical Materials, Effective 4/20/2012 (PDF)
• Approved PT Providers, Rev.4 (PDF)

Procedures & Methods

• ASDWA Technical Bulletin to Laboratories Reporting PFAS Analysis Using EPA Methods 533, 537, or 537.1 (PDF)
• Light Hydrocarbons via Headspace and GC-FID (PA-DEP 3686, Rev. 1) (PDF)
• Light Hydrocarbons via Purge & Trap and GC-FID (PA-DEP 9243, Rev. 0) (PDF)
• Distillation Variance Procedure, Rev. 1 (PDF)

Compliance Assistance

• Coliform Density Calculation FAQ (11/2008) (PDF)
• Corrective Action Report FAQ, Rev. 1 (PDF)
• Distillation Variance Approval Extension Letter (04/27/2012) (PDF)
• Guidelines for Sample Collection, Receipt, and Handling
• Instructions for Environmental Laboratories Seeking Accreditation from the PA-DEP, Rev. 0 (PDF)
• Limited Use ATP Approval Application FAQ, Rev. 0 (PDF)
• Memo to All Accredited Labs RE: Env. Lab Accreditation Regs, Chapter 252 (PDF)
• Memo to DW Accredited Laboratories RE: SDWA Reporting and Notification Requirements (12/7/2017) (PDF)
• Microbiology Incubation Units
• NELAP Accreditation FAQ, Rev. 2.1 (PDF)
• SDWA Microbiology Results and Reporting (12/9/2020) (PDF)
• Notification of Cyanotoxin Accreditation (09/16/20) (PDF)
• On-Site Assessment Guidance, Rev. 2 (PDF)
• Proficiency Testing (PT) Guidance for Laboratories Rev. 5 (PDF)
• Required Documentation for PA State (Chapter 252) Accreditation, Rev. 5 (PDF Only)
• SDWA Composite Analysis FAQ, Rev. 0 (PDF)
• Writing a Quality Manual for PA State (Chapter 252) Accreditation Rev. 8 (PDF)
• Writing an Analytical SOP for PA State Accreditation, Rev. 3 (PDF)

Search Environmental Laboratories

• Instructions for use of "Search PA Accredited Environmental Laboratories" (PDF)
• Search PA Accredited Environmental Laboratories Link
• Search PA Registered Environmental Laboratories Link

PA State Regulations

• 25 Pa. Code Chapter 252 Environmental Laboratory Accreditation Regulations
• 2012_April 28 - PA Bulletin Fields of Proficiency Testing Additions and PTRLs 4/28/2012 (PDF)
• 2009_May 23 - PA Bulletin Fields of Proficiency Testing Additions 5/23/09 (PDF Only)
• 27 Pa C.S., Chapter 41 (Act 90 of 2002) - Environmental Laboratory Accreditation Act (PDF Only)

The NELAC Institute (TNI)

• The NELAC Institute (TNI) 
  

Related Information

• Laboratory Accreditation Advisory Committee

Contact Us

• EP, Laboratory Accreditation Program
• Laboratory Accreditation Program Document Upload

Mailing and Physical Addresses

US Postal Service :

Department of Environmental Protection
Bureau of Laboratories
Attn: Laboratory Accreditation Program
PO Box 1467
Harrisburg, PA 17105-1467

Other modes of delivery (UPS, Fed Ex, etc):

Department of Environmental Protection
Bureau of Laboratories
Attn: Laboratory Accreditation Program
2575 Interstate Drive
Harrisburg, PA 17110-9332