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
Radon Registration ID: SPC437


State Cert. #M-NH005

Rhode Island

State Cert. #LAO00377


State Cert. #VT-101204

New York

State Cert. #12072

West Virginia

State Cert. #9910 C

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 ourĀ 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.

Print version

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

View PDF’s

Drinking Water Resources