About EAI


We are fully accredited and certified throughout New England.

Eastern Analytical, Inc. (EAI) holds primary NELAC accreditation from the State of NH and is certified throughout New England. Certification is contingent upon biennial on-site inspections and biannual blind proficiency testing samples. EAI participates in these studies for the Clean Water Act (CWA), Safe Drinking Water Act (SDWA), Resource Conservation and Recovery Act (RCRA) and Underground Storage Tank (UST) programs. The following represents EAI certifications by state and program:


New Hampshire

State Cert. / NH ELAP #1012



State Cert. #PH-0492



State Cert. #2010028



State Cert. #M-NH005


Rhode Island

State Cert. #LAO00269



State Cert. #VT-101204



State Cert. #41620


New York

State Cert. #12072

Eastern Analytical, Inc. participates in Performance Evaluation (PE) Studies for Water Pollution, Water Supply, Solid and Hazardous Waste and UST.

Quick Resources

Holding Times & Preservation Card
Get our convenient holding times and preservation reference card.


Short Hold Time Parameters Chart
Download our sample turnaround table guidelines.


Download the Eastern Analytical, Inc. Reference Card.


Chain of Custody Forms

Download one of our chain of custody forms.

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Interactive version

Residential Drinking Water Information
Get our homeowner drinking water guide and residential chain of custody form.

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Drinking Water Resources