The Oregon Environmental Laboratory Accreditation Program (ORELAP) is recognized by the NELAC Institute’s National Environmental Laboratory Accreditation Program. ORELAP accredits qualified laboratories for testing under the Clean Air Act (CAA), Clean Water Act (CWA), Resource Conservation and Recovery Act (RCRA), and the Safe Drinking Water Act (SDWA).

ORELAP Current Items of Interest: 

• Fecal coliforms by Colilert-18 for NPDES
• 2009 TNI Standard implements November 1, 2011.  More info soon

ORELAP and the Accreditation Process

• How to Get and Maintain ORELAP Accreditation
• ORELAP Frequently Asked Questions
• ORELAP fee calculator spreadsheet

Accreditation tools for the laboratory

• Control Chart application instructions
• Control Chart application
• Multi-analyte/Method MDL Summary
• NELAC 2003 Quality System Checklist (old)
• 2009 TNI Quality System Checklist (current) 

TNI

The NELAC Institute (TNI)

• National Environmental Field Activities Program
• National Environmental Laboratory Accreditation Program
• Stationary Source Audit Sample Program
• Proficiency Testing

EPA and Chromium-6 in Drinking Water

• EPA's recommendations for enhanced monitoring for Hexavalent Chromium (Chromium-6) in Drinking Water