|
Category |
Code |
Description |
Source |
Reference |
Low level method |
Active
|
Alias
|
Modified By
|
Modified Date
|
|
Analysis
|
EPA1634Draft
|
Determination of 6PPD-Quinone in Aqueous Matrices Using Liquid Chromatography with Tandem Mass Spectrometry (LC/MS/MS), Draft Version
|
USEPA
|
U.S. Environmental Protection Agency Office of Water (4303T), Office of Science and Technology Engineering and Analysis Division, EPA 821-D-24-001, Draft December 2023
|
N
|
Y
|
|
CNEU461
|
07/02/2024
|
|
Analysis
|
EPA906.0
|
Tritium in Drinking Water by Liquid Scintillation Counting, Version 1.0
|
USEPA
|
US EPA, 1980. Prescribed Procedures for Measurement of Radioactivity in Drinking Water (EPA/600/4-80-032), August 1980.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA-TO-17
|
Determination of Volatile Organic Compounds in Ambient Air Using Active Sampling onto Sorbent Tubes
|
USEPA
|
EPA, 1999. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air, Second Edition (EPA/625/R-96/010b). EPA Center for Environmental Research Information, Cincinnati, OH
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA625.1
|
Base/Neutrals and Acids by GC/MS, Revision 2016
|
USEPA
|
US EPA Office of Water, December 2017, document 821-R-16-007
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA305.1
|
Acidity by Titration
|
USEPA
|
U.S. EPA 1979, National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (EPA/600/4-79/020)
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA376.3-EPA245.5
|
Acid Volatile Sulfide (AVS) and Simultaneously Extractable Metals (SEM) in Sediment (Draft) and Mercury in Sediment by Manual Cold Vapor Atomic Absorption (CVAA).
|
USEPA
|
USEPA, Draft Method, Office of Science and Technology, EPA-821-R-91-100, December 1991 and USEPA, Method 245.5, Methods for Chemical Analysis of Water and Wastes, Pub. EPA-600/4-82-055, December 1982.
|
N
|
Y
|
EPA245.5-AVS
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA680
|
Determination of Pesticides and PCBs in Water and Soil/Sediment by Gas Chromatography/Mass Spectrometry (GC/MS)
|
USEPA
|
U.S. EPA. 1985. Physical and Chemical Methods Branch, Environmental Monitoring and Support Laboratory, Office of Research and Development, Cincinnati, Ohio 45268.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA352.1
|
Nitrate by Colorimetry
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), 1971
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA1656A
|
Organochlorine Pesticides by Gas Chromatography, Revision A
|
USEPA
|
EPA 600 Series, Methods for the Determination of Non-Conventional Pesticides in Municipal and Industrial Wastewater, Volume 1, EPA-821-R-93-010-A, August 1993, Revision 1.
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA600/2-78-054-3.2
|
Maximum potential acidity by sulfur determination, EPA 600/2-78-054.
|
USEPA
|
Sobek, Andrew A., W.A. Schuller, J.R. Freeman, and R.M. Smith. March 1978. Field and Laboratory Methods Applicable to Overburdens and Minesoils. EPA600/2-78-054, Ch 3.2.4
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA206.3
|
Arsenic by Gaseous Hydride Generation and Atomic Absorption (AA)
|
USEPA
|
U.S. EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (EPA/600/4-79/020), 1974
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA376.2
|
Sulfide (Colorimetric, Methylene Blue)
|
USEPA
|
U.S. EPA National Exposure Research Laboratory (NERL), 1978. Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020)
|
N
|
Y
|
|
benf461
|
10/09/2023
|
|
Analysis
|
EPA1628-R0
|
Polychlorinated Biphenyl (PCB) Congeners in Water, Soil, Sediment, Biosolids, and Tissue by Low-Resolution GC/MS using Selected Ion Monitoring (SIM), Revision 0
|
USEPA
|
US EPA Office of Water, Office of Science and Technology, Engineering and Analysis Division, EPA 821-R-21-002, July 2021
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA366.0
|
Dissolved Silicate in Estuarine and Coastal Waters by Colorimetry (Gas Segmented Continuous Flow Colorimetric Analysis)
|
USEPA
|
U.S. EPA National Exposure Research Laboratory (NERL), 1997, Methods for Determination of Chemical Substances in Marine and Estuarine Matrices - 2nd Edition (EPA/600/R-97/072), Revision 1.0
|
N
|
Y
|
|
benf461
|
10/09/2023
|
|
Analysis
|
EPA525.2
|
Organic Compounds in Drinking Water by Liquid-Solid Extraction and Capillary Column Gas Chromatography/Mass Spectrometry (GCMS)
|
USEPA
|
U.S. EPA, 1995. Methods for the Determination of Organic Compounds in Drinking Water - Supplement III (EPA/600/R-95-131), U.S. EPA National Exposure Research Laboratory (NERL), Revision 2.0
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Measurement
|
EPA170.1
|
Temperature by Thermistor
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), 1974. Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020)
|
N
|
Y
|
|
CNEU461
|
07/22/2025
|
|
Analysis
|
EPA905.0
|
Radioactive Strontium in Drinking Water by Radiochemical Separation and Beta Counting, Version 1.0
|
USEPA
|
US EPA, 1980. Prescribed Procedures for Measurement of Radioactivity in Drinking Water (EPA/600/4-80-032), August 1980.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA160.3M
|
Residue, Total, Gravimetric, Dried at 103-105 Deg-C, modified
|
USEPA
|
Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020)
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA-3C-M
|
Determination of Carbon Dioxide, Methane, Nitrogen, and Oxygen From Stationary Sources by GC with Thermal Conductivity Detector (TCD), Modified for Helium
|
USEPA
|
US EPA Air Programs, 40 CFR, Part 60, Appendix A-2, June 20, 1996
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA504.1
|
1,2-Dibromoethane (EDB), 1,2-Dibromo-3-Chloro-Propane (DCBP), and 1,2,3-Trichloropropane (123TCP) in Water by Microextraction and Gas Chromatography
|
USEPA
|
U.S. EPA Office of Ground Water and Drinking Water/Technical Support Center, Methods for the Determination of Organic Compounds in Drinking Water - Supplement III (EPA/600/R-95-131), 1995
|
N
|
Y
|
|
benf461
|
10/12/2023
|
|
Analysis
|
EPA624.1
|
Purgables by Gas Chromatography/Mass Spectrometry (GC/MS), Revision 2016.
|
USEPA
|
U.S. Environmental Protection Agency, CWA Methods Team, EPA 821-R-16-008, 40CFR136A, December 2016.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA1638M
|
Determination of Trace Elements in Ambient Waters by Inductively Coupled Plasma-Mass Spectrometry, Modified
|
USEPA
|
U.S. EPA Engineering and Analysis Division, Washington, DC, January 1996
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA-TO-10A
|
Determination of Pesticides and Polychlorinated Biphenyls in Ambient Air Using LOW Volume Polyurethane Foam (PUF) Sampling Followed by Gas Chromatographic/Multi-Detector Detection (GC/MD), Second Edition
|
USEPA
|
EPA, 1999. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air, Second Edition (EPA/625/R-96/010b). EPA Center for Environmental Research Information, Cincinnati, OH
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA625M
|
Base/Neutral and Acid Organics in Wastewater by GC/MS, Modified
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), Cincinnati, Ohio, Methods and Guidance for Analysis of Water CD, Version 2.0
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA365.5
|
Orthophosphate in Estuarine and Coastal Waters by Colorimetry (Automated)
|
USEPA
|
U.S. EPA National Exposure Research Laboratory (NERL), 1997, Methods for Determination of Chemical Substances in Marine and Estuarine Matrices - 2nd Edition (EPA/600/R-97/072), Revision 1.4
|
N
|
Y
|
|
benf461
|
10/09/2023
|
|
Analysis
|
EPA160.40-SM2540G
|
Residue, Volatile, Muffle Furnace, Gravimetric, Ignition at 550 Deg-C and Total, Fixed and Volatile Solids in Solid and Semisolid Samples.
|
USEPA
|
U.S.EPA NERL, Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) and Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA900.0
|
Gross Alpha and Gross Beta Radioactivity in Drinking Water by Alpha Gas Particle Counter, Version 1.0
|
USEPA
|
US EPA, 1980. Prescribed Procedures for Measurement of Radioactivity in Drinking Water (EPA/600/4-80-032), August 1980.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA1603
|
E. coli in Water by Membrane Filtration using Modified mTEC Agar
|
USEPA
|
U.S. Environmental Protection Agency Office of Water, EPA-821-R-02-023, September 2002
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA903.0
|
Alpha-Emitting Radium Isotopes in Drinking Water by Alpha Scintillation, Version 1.0
|
USEPA
|
US EPA, 1980. Prescribed Procedures for Measurement of Radioactivity in Drinking Water (EPA/600/4-80-032), August 1980.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA1699
|
Pesticides in water, soil, sediment, biosolids, and tissue by HRGC/HRMS
|
USEPA
|
U.S. Environmental Protection Agency, 2007, Method 1699: Pesticides in water, soil, sediment, biosolids, and tissue by HRGC/HRMS: USEPA, Washington, DC, EPA-821-R-08-001, 96 p.
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA1604
|
Total Coliform and E. coli in Water by Membrane Filtration using Simultaneous Detection
|
USEPA
|
U.S. Environmental Protection Agency Office of Water, EPA-821-R-02-024, September 2002.
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA508
|
Chlorinated Pesticides in Water by Gas Chromatography with an Electron Capture Detector (GCECD)
|
USEPA
|
EPA, Methods for the Determination of Organic Compounds in Drinking Water - Supplement III (EPA/600/R-95-131), Revision 3.1, 1995
|
N
|
Y
|
|
benf461
|
10/12/2023
|
|
Analysis
|
EPA1657A
|
Organo-Phosphorus Pesticides in Wastewater, Soil, Sludge, Sediment, and Tissue by GC/FPD, Revision A.
|
USEPA
|
U.S. Environmental Protection Agency (EPA) Office of Science and Technology, EPA-821-R-00-018, September 2000.
|
N
|
Y
|
|
CNEU461
|
08/12/2025
|
|
Analysis
|
EPA901.1M
|
Gamma emitting radionuclides in drinking water (Gamma Spectroscopy), modified
|
USEPA
|
US EPA, 1980. Prescribed Procedures for Measurement of Radioactivity in Drinking Water (EPA/600/4-80-032), August 1980, Modified.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA1625B
|
Semivolatile Organic Compounds (BNA) by Isotope Dilution GC/MS, Revision B
|
USEPA
|
U.S. EPA Engineering and Analysis Division, USEPA Headquarters, Washington, DC., Revision 40 CFR Part 136, Appendix A
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA376.3-SW6010C
|
Acid Volatile Sulfide (AVS) and Simultaneously Extractable Metals (SEM) in Sediment (Draft) and Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) for Metals & Trace Elements, Revision 3.
|
USEPA
|
USEPA, Draft Method, Office of Science and Technology, December 1991, EPA-821-R-91-100 and EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, Revision 3, February 2007.
|
N
|
Y
|
|
benf461
|
10/09/2023
|
|
Analysis
|
EPA-TO-15M
|
Determination of Volatile Organic Compounds (VOCs) in Air Collected in Specially-Prepared Canisters and Analyzed by Gas Chromatography/ Mass Spectrometry (GC/MS), modified method
|
USEPA
|
EPA, 1999. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air, Second Edition (EPA/625/R-96/010b). EPA Center for Environmental Research Information, Cincinnati, OH
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA600R93A
|
Determination of Asbestos in Bulk Building Materials Using Polarized Light Microscopy (PLM) and Other Methods, EPA/600/R-93/116
|
USEPA
|
U.S. EPA Atmospheric Research and Exposure Assessment Lab, Research Triagle Park, NC, EPA/600/R-93/116, June 1993.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA445.0
|
In Vitro Determination of Chlorophyll a and Pheophytin a in Marine and Freshwater Algae by Fluorescence
|
USEPA
|
US EPA, 1997. National Exposure Research Laboratory Office of Research and Development, Cincinnati, Ohio, Revision 1.2, September 1997.
|
N
|
Y
|
|
benf461
|
10/12/2023
|
|
Analysis
|
EPA335.1
|
Cyanides Amenable to Chlorination by Titrimetry, Spectrophotometry
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020)
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA410.4
|
Chemical Oxygen Demand by Colorimetry
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), Microbiological and Chemical Exposure Assessment Research Division (MCEARD), EPA 600/4-79-020
|
N
|
Y
|
|
benf461
|
10/09/2023
|
|
Analysis
|
EPA-KAHN88
|
Lloyd Kahn Method for Determination of Total Organic Carbon (TOC) in Sediment.
|
USEPA
|
Kahn, Lloyd, 1988. Determination of Total Organic Carbon in Sediment. US EPA Region II Environmental Services Division, Edison, NJ, July 27, 1988.
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA-TO-3M
|
Volatile Organic Compounds (VOCs) in Ambient Air Using Cryogenic Preconcentration Techniques and Gas Chromatography with Flame Ionization and Electron Capture Detection, modified method, second edition.
|
USEPA
|
EPA, 1999. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air, Second Edition (EPA/625/R-96/010b). EPA Center for Environmental Research Information, Cincinnati, OH
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA549.2
|
Determination of Diquat and Paraquat in Drinking Water by Liquid-Solid Extraction and High Performance Liquid Chromatography with Ultraviolet Detection (HPLC-UV), Revision 1.0.
|
USEPA
|
USEPA, June 1997, Method 524.3, Revision 1. http://www.epa.gov/safewater/methods/methods.html, EPA Office of Research and Development, http://www.epa.gov/nerlcwww/ordmeth.htm.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPARa-05
|
Radiochemical Determination of Radium-228 in Water Samples by Radiochemical Precipitation and Low Background Proportional Beta Count
|
USEPA
|
US EPA, 1984. Radiochemistry Procedures Manual (EPA/520/5-84-006), June 1984.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA522-V1.0
|
Determination of 1,4-Dioxane in Drinking Water by Solid Phase Extraction (SPE) and Gas Chromatography Mass Spectrometry (GC/MS) with Selected Ion Monitoring (SIM). Version 1.0
|
USEPA
|
Munch, J. W. AND P. Grimmett. U.S. Environmental Protection Agency, Washington, DC, Version 1.0, September 2008, EPA/600/R-08/101.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA552.3
|
Determination of Haloacetic Acids and Dalapon in
Drinking Water by Liquid-liquid Microextraction,
Derivatization, and Gas Chromatography with
Electron Capture Detection
|
USEPA
|
US EPA, Methods for the Determination of Organic Compounds in Drinking Water -( EPA 815-B-03-002) Revision 1.0, July 2003
|
N
|
Y
|
|
benf461
|
10/10/2024
|
|
Analysis
|
EPA537.1-V2.0
|
Determination of Selected Per- and Polyfluorinated Alkyl Substances (PFAS) in Drinking Water by Solid Phase Extraction and Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS), Version 2.0.
|
USEPA
|
Shoemaker, J. and Dan Tettenhorst. U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC. EPA537.1, EPA/600/R-20/006, Version 2.0, March 2020.
|
N
|
Y
|
|
CNEU461
|
10/14/2024
|
|
Analysis
|
EPA1633
|
Analysis of Per- and Polyfluoroalkyl Substances (PFAS) in Aqueous, Solid, Biosolids, and Tissue Samples by LC-MS/MS, Revision 0
|
USEPA
|
U.S. Environmental Protection Agency, Office of Water, Office of Science and Technology, Engineering and Analysis Division, EPA 821-R-24-001, January 2024, Revision 0.
|
N
|
Y
|
|
CNEU461
|
04/30/2025
|
|
Analysis
|
EPA200.8-SW7196A
|
Chromium(III) by Calculation of Total Chromium by EPA200.8 (Metals and Trace Elements in Waters by ICP-MS) minus Chromium(VI) by SW7196A (Chromium, Hexavalent, Colorimetric, Revision 1)
|
USEPA
|
U.S.EPA - NERL, Methods for the Determination of Metals in Environmental Samples, Supplement 1 (EPA/600/R-94/111) and Office of Solid Waste SW-846, SW7196A Revision 1, July 1992.
|
N
|
Y
|
|
CNEU461
|
12/18/2024
|
|
1529 records
|