|
Category |
Code |
Description |
Source |
Reference |
Low level method |
Active
|
Alias
|
Modified By
|
Modified Date
|
|
Analysis
|
EPA365.1M
|
Phosphorus (All Forms), Colorimetric, Automated- Low Level, Ascorbic Acid Modified.
|
USEPA
|
U.S. Environmental Protection Agency Office of Water 600/4-79-020
|
N
|
Y
|
|
benf461
|
10/09/2023
|
|
Analysis
|
EPA624
|
GC/MS Purge and Trap Scan
|
USEPA
|
U.S. Environmental Protection Agency Office of Water 40CFR 136 App A
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA335.4
|
Total Cyanide by Semi-Automated Colorimetry
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Determination of Inorganic Substances in Environmental Samples (EPA/600/R-93/100)
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA625
|
Base/Neutral and Acid Organics in Wastewater by GC/MS
|
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
|
EPA375.2
|
Sulfate (Colorimetric, Automated, Methylthymol Blue, AA II)
|
USEPA
|
U.S. EPA National Exposure Research Laboratory (NERL), Methods for the Determination of Inorganic Substances in Environmental Samples (EPA/600/R-93/100)
|
N
|
Y
|
|
benf461
|
10/09/2023
|
|
Analysis
|
EPA-NPS-4
|
Determination of Carbamate Pesticides in Ground Water by High-Performance Liquid Chromatography (HPLC) with an Ultraviolet Detector
|
USEPA
|
EPA, 1989/1990. Quality Assurance Project Plan For The National Pesticide Survey Of Drinking Water Wells Analytical Method 4 Carbamates, Section 9, EPA 810/B-92-004
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA325.3
|
Chloride by Mercuric Nitrate Titrimetry
|
USEPA
|
Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020)
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA200.8AV
|
Simultaneously Extracted Metals (SEM) in Waters by ICP-MS (w/Acid Volatile Sulfides/AVS)
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Determination of Metals in Environmental Samples, Supplement 1 (EPA/600/R-94/111), modified
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA289.2
|
Zinc by Graphite Furnace Atomic Absorbtion (GFAA)
|
USEPA
|
U.S.EPA, 1979. 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
|
EPA350.1M
|
Nitrogen as Ammonia, Colorimetric, Automated Phenate, Modified for Solids
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Determination of Inorganic Substances in Environmental Samples (EPA/600/R-93/100), modified
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA420.1
|
Phenols by 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
|
10/09/2023
|
|
Analysis
|
EPA1613A
|
Tetra- thru Octa-Chlorinated Dioxins and Furans by Isotope Dilution HRGC/HRMS, Revision A
|
USEPA
|
US EPA, Methods and Guidance for Analysis of Water, 821/B-94-005
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA901.1
|
Gamma emitting radionuclides in drinking water (Gamma Spectroscopy)
|
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
|
EPA524.2
|
Puregable Organic Compounds in Water by Capillary Column by Gas Chromatography/Mass Spectrometry (GC/MS)
|
USEPA
|
IN EPA Methods and Guidance for Analysis of Water, Version 2.0, Method Revision 4.1, 1995
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA515.1
|
Determination of Chlorinated Acids in Water by Gas Chromatography (GC) with an Electron Capture Detector, Revision 4.1
|
USEPA
|
EPA-TSC/NERL, 1995. Methods for the Determination of Organic Compounds in Drinking Water - Supplement II, EPA/600/R-92-129, Revision 4.1
|
N
|
Y
|
EPA 515.1
|
benf461
|
10/12/2023
|
|
Analysis
|
EPA1613B
|
Tetra- thru Octa-Chlorinated Dioxins and Furans by Isotope Dilution HRGC/HRMS, Revision B
|
USEPA
|
US EPA, Methods and Guidance for Analysis of Water, 821/B-94-005, October 1994
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA335.2
|
Total Cyanide in Water 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
|
EPA515
|
Determination of Chlorinated Herbicides in Drinking Water by Gas Chromatography (CG) with an Electron Capture Detector, Revision 2.0
|
USEPA
|
Hodgeson, JW, 1986. Determination of Chlorinated Herbicides in Drinking Water, EPA-615R86002. Supplement to Methods for the Determination of Organic Compounds in Finished Drinking Water and Raw Source Water. Other revisions of the same method: EPA-NPS-3
|
N
|
Y
|
|
benf461
|
10/12/2023
|
|
Analysis
|
EPA1640
|
Metals and Trace Elements in Ambient Waters by On-Line Chelation and ICP-MS.
|
USEPA
|
EPA Methods and Guidance for Analysis of Water, Version 2.0, 1997. Engineering and Analysis Division. EPA Method Guidance CD-ROM.
|
N
|
Y
|
|
CNEU461
|
01/23/2025
|
|
Analysis
|
EPA-NPS-3
|
Determination of Chlorinated Acid Herbicides in Ground Water by Gas Chromatography (CG) with an Electron Capture Detector
|
USEPA
|
EPA, 1990/1992. Quality Assurance Project Plan For The National Pesticide Survey Of Drinking Water Wells Analytical Method 1 - Nitrogen-Phosphorous Pesticides and Analytical Method 3, Appendix A, EPA 810/B-92-002. Other revisions: EPA515 (2) and EPA515.1
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA375.1
|
Sulfate (Colorimetric, Automated, Chloranilate)
|
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
|
10/09/2023
|
|
Analysis
|
EPA340.2
|
Fluoride, Potentiometric, Ion Selective Electrode
|
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
|
EPA1632
|
Inorganic Arsenic in Water by Hydride Generation Quartz Furnace Atomic Absorption
|
USEPA
|
US EPA Office of Water, Engineering and Analysis Division, Washington DC, 821-R-96-013, July 1996
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA450.1
|
Total Organic Halides in Drinking, Ground, and Surface Waters by Carbon Absorption and Microcoulometric Titration
|
USEPA
|
EPA, 1980. Office of Research and Development, Environmental Monitoring and Support Laboratory, Physical and Chemical Methods Branch. Interim method 600/4-81-056
|
N
|
Y
|
|
benf461
|
10/12/2023
|
|
Analysis
|
EPA1600
|
Enterococci in Water by Membrane Filtration Using mEI Agar
|
USEPA
|
U.S. Environmental Protection Agency Office of Water, EPA-821-R-02-022
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA1630
|
Methyl Mercury in Water by Cold Vapor Atomic Florescence (CVAF)
|
USEPA
|
US EPA Office of Water, Engineering and Analysis Division, Washington DC
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA1103.1
|
E. coli and Enterococci in Water by Membrane Filtration using Modified mTEC2 Agar
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), Microbiological and Chemical Exposure Assessment Research Division (MCEARD).
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA370.1
|
Silica, Dissolved (Colorimetric)
|
USEPA
|
US EPA 1971, Ed Rev 1978. National Exposure Research Laboratory (NERL). Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020)
|
N
|
Y
|
|
benf461
|
10/09/2023
|
|
Analysis
|
EPA375.4
|
Sulfate (Turbidimetric)
|
USEPA
|
U.S. EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020), Issued 1971; Editorial Revision 1978
|
N
|
Y
|
|
benf461
|
10/09/2023
|
|
Analysis
|
EPA354.1
|
Nitrogen, Nitrite, by Spectroscopy (Colorimetry; Photometry)
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), 1979. Methods and Guidance for Analysis of Water and Wastes (MCAWW), Version 2.0 (EPA/600/4-79/020)
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA1636
|
Determination of Hexavalent Chromium by Ion Chromatography
|
USEPA
|
US EPA Office of Water, Engineering and Analysis Division, Washington DC, 821/R-96-003, January 1996
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA130.1
|
Hardness, Total (as CaCO3), Colorimetric, Automated EDTA
|
USEPA
|
U.S. EPA National Exposure Research Laboratory (NERL) 600/4-79-020
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA420.1M
|
Phenols by Spectrophotometry, modified
|
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
|
10/09/2023
|
|
Analysis
|
EPA325.2
|
Chloride by Automated Colorimetry (Ferricyanide)
|
USEPA
|
Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020)
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA-TO-15-SIM
|
Determination of Volatile Organic Compounds (VOCs) in Air Collected in Specially Prepared Canisters and Analyzed by Gas Chromatography/ Mass Spectrometry (GC/MS), Selective Ion Monitoring (SIM).
|
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
|
EPA-TO-15SIM
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA-TO-14
|
Volatile Organic Compounds (VOCs) In Ambient Air Using Specially Prepared Canisters With Subsequent Analysis By Gas Chromatography (GC)
|
USEPA
|
Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air, Second Edition, (EPA/625/R-96/010b)
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA200.9
|
Trace Elements by Stabilized Temperature Graphite Furnace Atomic Absorption (GFAA)
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Determination of Metals in Environmental Samples, Supplement 1 (EPA/600/R-94/111)
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA-NPS-5
|
Measurement of N-Methylcarbamoyloxime and N-Methylcarbamate Pesticides in Ground Water by Direct Aquesous Injection High-Performance Liquid Chromatography (HPLC) with Post-Column Derivatization and a Fluorescence Detector
|
USEPA
|
EPA, 1989/1990, Quality Assurance Project Plan For The National Pesticide Survey Of Drinking Water Wells Analytical Method 5 Methyl Carbamates, Appendix A, EPA 810/B-92-005
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA1668B
|
Chlorinated Biphenyls in Water, Soil, Sediment, Biosolids and Tissue by HRGC/HRMS, Revision B
|
USEPA
|
US EPA Office of Water, Office of Science and Technology, Engineering and Analysis Division, EPA-821-R-08-020, November 2008
|
Y
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA200.8M
|
Metals and Trace Elements in Waters by ICP-MS, modified
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Determination of Metals in Environmental Samples, Supplement 1 (EPA/600/R-94/111)
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA537.1-V1.0M
|
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 1.0, Modified Method.
|
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-18/352, Version 1.0, 11/02/2018.
|
N
|
Y
|
|
CNEU461
|
10/14/2024
|
|
Analysis
|
EPA1658
|
Determination of Phenoxy-Acid Herbicides in Municipal and Industrial Wastewater
|
USEPA
|
US EPA, 1993. Methods For The Determination Of Nonconventional Pesticides In Municipal And Industrial Wastewater Volume 1, 821/R-93-010-A
|
N
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPA282.2
|
Tin by Graphite Furnace Atomic Absorption (GFAA)
|
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
|
EPA353.3
|
Nitrogen, Nitrate-Nitrite (Spectrophotometric, Cadmium Reduction)
|
USEPA
|
US EPA, 1974. 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
|
EPA350.3M
|
Nitrogen as Ammonia (Potentiometric, Ion Selective Electrode), Modified
|
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
|
EPA-NPS-1
|
Determination of Nitrogen and Phosphorus-Containing Pesticides in Ground Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
|
USEPA
|
EPA, 1989/1992. Quality Assurance Project Plan For The National Pesticide Survey Of Drinking Water Wells Analytical Method 1, Section 9, Revision 4, EPA 810/B-92-010.
|
N
|
Y
|
|
benf461
|
10/03/2023
|
|
Analysis
|
EPA160.4M
|
Residue, Volatile, Muffle Furnace, Gravimetric, Ignition at 550 Deg-C, modified
|
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
|
EPA1668A
|
Chlorinated Biphenyls in Water, Soil, Sediment, Biosolids and Tissue by HRGC/HRMS, Revision A
|
USEPA
|
US EPA Office of Water, Engineering and Analysis Division, Revision A, EPA 821-R-00-002, December 1999.
|
Y
|
Y
|
|
benf461
|
10/04/2023
|
|
Analysis
|
EPASOP-EMAB114.0
|
Improved Method for the Extraction and Analysis of Perfluorinated Compounds (PFCs) from Surface Waters and Well Water by Ultra-High Performance Liquid Chromatography (UPLC)-Tandem Mass Spectrometry (MS/MS).
|
USEPA
|
Human Exposure and Atmospheric Sciences Division, National Exposure Research Laboratory, Office of Research and Development, USEPA, March 13, 2009.
|
N
|
Y
|
|
benf461
|
10/16/2023
|
|
Analysis
|
EPA501
|
1,2 Dichloropropane
|
USEPA
|
U.S. Environmental Protection Agency Office of Water
|
N
|
Y
|
|
benf461
|
10/12/2023
|
|
1503 records
|