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Complete Analyte Lists and Certifications
RWA Lab Services is certified to conduct drinking water testing and analysis in Connecticut, Massachusetts and Rhode Island. It is also certified for New Hampshire, New York and Pennsylvania through accreditation by The NELAC Institute (TNI).
Connecticut Analyte Lists and Certification
Massachusetts Analyte Lists and Certification
- MA Analyte List and Certificate 7-1-25 to 6-30-26
- MA Analyte List and Certificate 7-1-24 to 6-30-25
- MA Analyte List and Certificate 7-1-23 to 6-30-24
- MA Analyte List and Certificate 07-01-22 to 06-30-23
New York Analyte Lists & Certification
- NY Certificate Exp. 4-1-2026
- NY Certificate Exp. 4-1-2025
- NY Certificate Exp. 1-13-2025
- NY Certificate Exp. 4-1-2024
Pennsylvania Analyte Lists & Certification
- PA Certificate Exp. 8-31-2026
- PA Certificate Exp. 8-31-2025
- PA Certificate Exp. 8-31-2024
- PA Scope of Accreditation Exp. 8-31-26
- PA Scope of Accreditation Exp. 8-31-25
- PA Scope of Accreditation Exp. 8-31-24
Rhode Island Analyte Lists and Certification
- Rhode Island Certificate Exp. 12-30-25
- Rhode Island Certificate Exp. 12-30-24
- Rhode Island Certificate Exp. 12-30-23
The NELAC Institute (TNI) Analyte Lists and Accreditation
- TNI Accredited Analyte List 9-29-25 (223924-B) and Certificate 2024-2025
- TNI Accredited Analyte List 11-25-2024 (223924-A) and Certificate 2024-2025
- TNI Accredited Analyte List 9-10-2024 (223923-C) and Certificate 2023-2024
- TNI Accredited Analyte List 11-22-2023 (223923-B) and Certificate 2023-2024
For information on previous analytes list and certifications, please
contact the lab.
