110 laboratories in United States are accredited by A2LA under ISO/IEC 17025 to perform Water testing. Common methods used to test Water in United States: EPA 300.0, EN ISO 17294-2/EPA Method 200.8, EPA 200.7. Most frequently tested analytes in this matrix in United States: Organic Compounds, Metals, Alkalinity. Accredited providers include Center For Analytical Chemistry California Department of Food and Agriculture, A&R Engineering and Testing, Maine Laboratories LLC, ChemTrace, Midwest Analytical Services. Sites located in Sacramento, CA, Houston, TX, Norridgewock, ME, Portland, OR, Ferndale, MI.
Sacramento, CA, US
(A2LA Cert. No. 2181.01) 09/24/2024 Page 2 of 5 Test/Technology Test Method Pesticides in Groundwater by LC/MS/MS and GC/MS/MS (cont’d) Clomazone Cyprodinil Diazinon
Houston, TX, US
(A2LA Cert. No. 2021.02) 06/30/2025 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 A&R ENGINEERING AND TESTING, INC. 323 Martin
Norridgewock, ME, US
(A2LA Cert. No. 7369.01) Revised 10/29/2025 Page 3 of 3 Parameter/Analyte Nonpotable Water Solid Hazardous Waste Perfluoropenta
Portland, OR, US
(A2LA Cert. No. 2252.02) 03/17/2025 Page 2 of 2 Test(s) Test Method(s) Assay by Auto Titration • Acids • Bases SOP CAT-C023 SOP CAT-C024 Analysis of pH in Aqueous Solutions SOP CAT-C045 Quantitation of Via
Ferndale, MI, US
(A2LA Cert No. 0381.01) REVISED 01/16/2026 Page 3 of 6 Parameter/Analyte Potable Water Nonpotable Water Solid Hazardous Waste Aqueous Solid 1,2-Dibromoethane (EDB) - - - - - - - - - - - - - - - - - - - - EPA 8260B - - - - - - - -
Wilmington, NC, US
(A2LA Cert. No. 3014.01) 03/04/2024 Page 2 of 6 Parameter/Analyte Nonpotable Water Solid Hazardous Waste Total Heptachlorodibenzofuran
Austin, TX, US
(A2LA Cert. No: 2976.01) 03/21/2024 Page 2 of 2 Test Type / Test Capabilities: Test Method(s): Degrees of Protection IEC 60529:2013, IPX3, IPX4, IPX5, IPX6, IPX7, IPX8 (Water) HALT 1 (Highly Accelerated Life Test) (-100 to 180) °C
PASCO, WA, US
(A2LA Cert. No. 5000.01) 07/29/2024 Page 7 of 11 Parameter/Analyte Test Method(s) RCRA Metals in Non-Potable Water and Solids Acid Digestion of Sediments, Sludges, and Soils EPA 3050B Acid Digestion of Water EPA 3
Memphis, TN, US
(A2LA Cert. No. 4139.20) 10/09/2025 Page 2 of 2 TEST(s) TEST METHOD(s) Kinematic Viscosity of Transparent and Opaque Liquids ASTM D445 Naphthalene Hydrocarbons in Aviation Turbine Fuels by UV ASTM D1840 Odor of Volatile Solvents and Di
Miami, FL, US
(A2LA Cert. No. 0717.05) 07/02/2024 Page 3 of 7 Type of Test Measurement/ Test Parameter Measurement and Testing Range Light and Weather Fastness Testing with Carbon Arc Lamps – Weather Resistance Irradiance Fi
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This page is a fixed slice of the register: every Water scope we hold for United States. Search keeps that Water filter on, so you can narrow further by city, accreditation body, or any term from the scope text.
Search Water labs in United StatesAmerican Association for Laboratory Accreditation (A2LA) is the primary accreditation body issuing ISO/IEC 17025 accreditation for testing laboratories in United States.
ISO/IEC 17025 is the international standard for the competence of testing and calibration laboratories. Accreditation to this standard provides independent confirmation that a laboratory operates a quality management system and is technically competent to produce valid results within its declared scope.