Valid Values - Methods



     
  
  
   
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Category Code Description Source Reference Low level method Active Alias Modified By Modified Date
Analysis SM16-418B Nitrogen (as Nitrate, NO3) by Electrode Screening Standard Methods 16th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1985. N Y benf461 09/28/2023
Analysis SM4500NO3D Nitrogen (as Nitrate, NO3) by Nitrate Electrode Method Standard Methods 18th, 19th, 20th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1992, 1995, 1998. N Y benf461 10/02/2023
Analysis SM4500NO2B Nitrogen (as Nitrite, NO2) by Colorimetric Method Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th & 19th Editions N Y benf461 10/02/2023
Analysis SM4500NO3I Nitrogen (Nitrate, NO3/Nitrite, NO2) by Cadmium Reduction Flow Injection Method Standard Methods Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF N Y benf461 10/02/2023
Analysis SM4500NORD Nitrogen (Organic) by Block Digestion and Flow Injection Analysis Y CNEU461 07/08/2004
Analysis SM4500NorgB Nitrogen (Organic) in Water by Macro-Kjeldahl Method Standard Methods 20th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1998. Y KKIN461 08/18/2015
Analysis SM4500NorgC Nitrogen (Organic) in Water by Semi-Micro Kjeldahl Method Standard Methods 20th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1998. Y SM4500NOC KKIN461 08/18/2015
Analysis I-2650-03 Nitrogen and Phosphorus, Total in Filtered Water by Alkaline Persulfate Digest (USGS) Patton, C.J., and Kryskalla, J.R., Methods of Analysis of the USGS NWQL -- Evaluation of Alkaline Persulfate Digestion as an Alternative to Kjeldahl Digestion for Determination of Total and Dissolved Nitrogen abd Phosphorus in Water, Report 03-4174 Y CNEU461 05/22/2006
Analysis EPA350.2 Nitrogen as Ammonia (Colorimetric; Titrimetric; Potentiometric - Distillation Procedure) 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 EPA350.3 Nitrogen as Ammonia (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 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 EPA350.1 Nitrogen as Ammonia, Colorimetric, Automated Phenate 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 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 SM4500NB Nitrogen, In-Line UV/Persulfate Digestion and Oxidation with Flow Injection Analysis Standard Methods 20th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1998. Y KKIN461 08/18/2015
Analysis EPA351.4M Nitrogen, Kjeldahl Total (Potentiometric, Ion Selective Electrode), Modified for Solids USEPA U.S. EPA National Exposure Research Laboratory (NERL) N Y benf461 10/04/2023
Measurement HACH-NI14 Nitrogen, Nitrate As NO3 by HACH field kit NI-14, Color disc/Cadmium reduction Hach Company, P.O. Box 389. Loveland, Colorado, 80539-0389, 800-227-4224, http://www.hach.com Y CNEU461 03/11/2008
Analysis EPA353.2 Nitrogen, Nitrate-Nitrite (Colorimetric, Automated Cadmium Reduction), Revision 2 USEPA US EPA, 1993. Methods for the Determination of Inorganic Substances in Environmental Samples (EPA/600/R-93/100), Revision 2, August 1993, National Exposure Research Laboratory (NERL), Cincinnati, OH. N Y benf461 10/04/2023
Analysis EPA353.2M Nitrogen, Nitrate-Nitrite (Colorimetric, Automated Cadmium Reduction), Revision 2, Modified for Soils. USEPA US EPA, 1993. Methods for the Determination of Inorganic Substances in Environmental Samples (EPA/600/R-93/100), Revision 2, August 1993, National Exposure Research Laboratory (NERL), Cincinnati, OH. N Y benf461 10/04/2023
Analysis EPA353.1 Nitrogen, Nitrate-Nitrite (Colorimetric, Automated Hydrazine Reduction) USEPA U.S. EPA National Exposure Research Laboratory (NERL), Cincinnati, OH, 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 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 SM4500N-C Nitrogen, Persulfate Method Standard Methods 18th, 19th, 20th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1992, 1995, 1998. N Y SM4500NC benf461 10/03/2023
Analysis EPA351.1 Nitrogen, Total, Kjeldahl, Colorimetric, Automated Phenol 600/4-79-020 USEPA U.S. Environmental Protection Agency Office of Water. N Y benf461 10/04/2023
Analysis EPA507 Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector USEPA US EPA Office of Ground Water and Drinking Water and US EPA National Exposure Research Laboratory (NERL), Cincinnati, OH. Methods for the Determination of Organic Compounds in Drinking Water - Supplement III (EPA/600/R-95-131), Revision 2.1, 1995 N Y benf461 10/12/2023
Analysis NBOD-CALC Nitrogenous Biochemical Oxygen Demand (NBOD) calculated from difference between Biochemical Oxygen Demand 5-Day (BOD5) and Carbonaceous Biochemical Oxygen Demand (CBOD). Y mbac461 08/26/2024
Analysis SM4500CO2B Nomographic Determination of Free Carbon Dioxide and the Three Forms of Alkalinity Standard Methods 18th, 19th, 20th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1992, 1995, 1998. N Y benf461 09/29/2023
Analysis NLIPIDS Non-polar Lipids Ecology-MEL Y CNEU461 04/20/2017
Analysis SW8015-M Nonhalogenated Organics (incl. petroleum hydrocarbons/GRO/DRO) Using GC/FID, modified EPA SW846 EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods. N Y benf461 10/17/2023
Analysis SW8015 Nonhalogenated Organics (incl. petroleum hydrocarbons/GRO/DRO) Using GC/FID, Revision 0, September 1986. EPA SW846 EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods. Revision 1, September 1986. N Y benf461 10/17/2023
Analysis SW8015A Nonhalogenated Organics (incl. petroleum hydrocarbons/GRO/DRO) Using GC/FID, Revision 1, July 1992. EPA SW846 EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods. Revision 1, July 1992. N Y benf461 10/17/2023
Analysis SW8015B Nonhalogenated Organics (incl. petroleum hydrocarbons/GRO/DRO) Using GC/FID, Revision 2, December 1996. EPA SW846 EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods. Revision 2, December 1996. N Y benf461 10/17/2023
Analysis SW8015C Nonhalogenated Organics (incl. petroleum hydrocarbons/GRO/DRO) Using GC/FID, Revision 3, February 2007. EPA SW846 EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods. Revison 3, Draft Update IVB, November 2000, Final February 2007. N Y benf461 10/17/2023
Analysis SW8015D Nonhalogenated Organics Using Gas Chromatography/Flame Ionization Detection (GC/FID), Revision 4, June 2003. EPA SW846 EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods. Revison 4, June 2003. Y CNEU461 01/07/2020
Analysis SM5540D Nonionic Surfactants as cobalt thiocyanate active substances (CTAS) Standard Methods 18th, 19th, 20th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, http://standardmethods.org/, 2000 N Y benf461 10/02/2023
Bioassay NORTON96A/ASTME1963 Norton Early Seedling Growth Protocol for Soil Toxicity Screening AND ASTM Standard Guide for Conducting Terrestrial Plant Toxicity Tests (E1963-02) Norton, D., 1996a, Ecology Publication No. 96-324 and ASTM International, West Conshohocken, PA, 2012 Y CNEU461 11/13/2015
Bioassay NORTON96B/ASTME1676 Norton Earthworm Bioassay Protocol for Soil Toxicity Screening AND ASTM Standard Guide for Conducting Laboratory Soil Toxicity or Bioaccumulation Tests with the Lumbricid Earthworm Eisenia Fetida and the Enchytraeid Potworm Enchytraeus albidus (E1676-112) Norton, D., 1996b, Ecology Publication No. 96-327 and ASTM International, West Conshohocken, PA, 2012 Y CNEU461 11/13/2015
Measurement BIOHabitatMetric016 Number of Ephemeroptera taxa within the sample Y chmo462 06/04/2012
Measurement BIOHabitatMetric041 Number of organisms in the sample that are sensitive to perturbation Y chmo510 06/04/2012
Measurement BIOHabitatMetric043 Number of organisms in the sample that are tolerant to perturbation Y chmo512 06/04/2012
Measurement BIOHabitatMetric032 Number of Plecoptera Taxa present in the sample Y chmo468 06/04/2012
Measurement BIOHabitatMetric002 Number of taxa in the sample that breathe air directly rather than extracting it from water using gills. Y chmo495 06/04/2012
Measurement BIOHabitatMetric053 Number of taxa in the sample that produces a single generation per year Y chmo502 06/04/2012
Measurement BIOHabitatMetric044 Number of taxa in the sample that requires more than a year to complete one generation Y chmo501 06/04/2012
Measurement BIOHabitatMetric009 Number of taxa in the sample that survive in a narrow range of cold water temperatures Y chmo497 06/04/2012
Measurement BIOHabitatMetric023 Number of taxa in the sample that uses Hemoglobin to carry oxygen in their bodies. These are usually an indicator of low oxygen conditions. Y chmo499 06/04/2012
Measurement BIOHabitatMetric018 Number of taxa representing Ephemeroptera, Plecoptera, and Trichoptera within the sample Y chmo464 06/04/2012
Measurement BIOHabitatMetric052 Number of Trichoptera Taxa present in the sample Y chmo469 06/04/2012
Analysis ALS-SVM-D4SO Octamethylcyclotetrasiloxane (D4) in Sediment and Biosolids by GC/MS, Revision 0 ALS Environmental SOP, 2014. Kelso Laboratory, WA, Revision 0, 10/1/2014. Y CNEU461 07/02/2015
Analysis SM16-503D Oil and grease gravimetric sox extraction for sludge Standard Methods 16th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1985. N Y benf461 09/29/2023
Analysis EPA413.2 Oil and Grease, Infrared Spectrophotometric USEPA U.S. Environmental Protection Agency Office of Water. 600/4-79-020 N Y benf461 10/09/2023
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