​Laboratory Accreditation Program

What's New?

• November 19, 2024 – the Laboratory Accreditation Advisory Committee meeting is scheduled to be at the Rachel Carsen State Office Building Room 105 at 400 Market Street Harrisburg, PA 17101 from 9 am – Noon​
  

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 (PDF)
• Distillation Variance Application (Rev. 10/2012) (Word)
• Limited Use ATP Method Application (Rev. 10/2012) (Word)
• Request to Report Qualified Drinking Water Sample Results

Proficiency Testing (PT)

• Fields of Proficiency Testing for Drinking Water, Effective 06-18-22 (PDF)
• Fields of Proficiency Testing for Non-potable Water, Effective 06-18-22 (PDF)
• Fields of Proficiency Testing for Whole Effluent Toxicity, Effective 06-18-22 (PDF)
• Fields of Proficiency Testing for Solid and Chemical Materials, Effective 06-18-22 (PDF)
• Approved PT Providers, Rev. 6 (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

• Assessment Guidance, Rev. 3 (PDF)
  
• Coliform Density Calculation FAQ (11/2008) (PDF)
• Corrective Action Report FAQ, Rev. 2 (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 Rev. 2 (12/2022) (PDF)
• Notification of Cyanotoxin Accreditation (09/16/20) (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)
• Traceability of Measurements, Rev. 3 (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

OnBase – Document Upload

• Laboratory Accreditation Program Document Upload

Contact Us

• EP, Laboratory Accreditation Program

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