Valid Values - Methods



     
  
  
   
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Category Code Description Source Reference Low level method Active Alias Modified By Modified Date
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 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
Measurement TDS-METER Total Dissolved Solids (TDS) by Field Meter. N Y TDSMETER KKIN461 03/15/2024
Analysis SM2540C Total Dissolved Solids (TDS) Dried at 180 Deg C Standard Methods Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF N Y benf461 10/02/2023
Analysis SM15-209B Total Dissolved Solids (TDS) Dried at 180 Deg C Standard Methods 15th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1981. N Y benf461 09/28/2023
Analysis TDS-CALC-HEM85 Total Dissolved Solids (TDS), Calculated, Hem 1985 Hem, J.D., 1985, Study and interpretation of the chemical characteristics of natural water (3rd Ed.): USGS Water Supply Paper 2254. Y mbac461 08/26/2024
Analysis EPA340.1 Total Fluoride by Colorimetry, SPADNS with Bellack Distillation 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 WTPH-418.1 Total Heavy Petroleum Hydrocarbons in Soil (Bunker-C, Lube Oils, possibly mixed w/WTPH-D) Ecology-MEL Washington Department of Ecology, 1991 (Revised 1995). Guidance for Remediation of Petroleum Contaminated Soils. Ecology Publication No. 91-30. Y CNEU461 04/20/2017
Analysis pH-HCalcClayton1993 Total hydrogen ion concentration scale calibration of m-cresol purple and at-sea results from spectrophotometric seawater pH measurements. Clayton, T. D., and R. H. Byrne. 1993. Spectrophotometric seawater pH measurements: total hydrogen ion concentration scale calibration of m-cresol purple and at-sea results. Deep Sea Research Part I: Oceanographic Research Papers, 40: 2115-2129. Y mbac461 08/26/2024
Analysis EPA351.3 Total Kjeldahl Nitrogen Colorimetric, Titrimetric, Potentiometric USEPA U.S. Environmental Protection Agency Office of Water. 600/R-93-100 N Y benf461 10/04/2023
Analysis EPA351.2 Total Kjeldahl Nitrogen in Water by Semiautomated Colorimetry, Revision 2 USEPA U.S. EPA, 1993. Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020), Revision 2, August 1993, EPA-ORD / EPA-OST. N Y benf461 10/04/2023
Analysis EPA351.2M Total Kjeldahl Nitrogen in Water by Semiautomated Colorimetry, Revision 2, Modified. USEPA U.S. EPA, 1993. Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020), Revision 2, August 1993, Modified, EPA-ORD / EPA-OST. N Y benf461 10/04/2023
Analysis EPA351.4 Total Kjeldahl Nitrogen Potentiometric, Ion Selective Electrode USEPA U.S. Environmental Protection Agency Office of Water. 600/4-79-020 N Y benf461 10/04/2023
Analysis D'Elia1977 Total nitrogen and total particulate nitrogen by persulfate digestion, cadmium reduction. D'Elia, C.F., P.A. Steadler and N. Corwin, 1977. Determination of total nitrogen in aqueous samples using persulfate digestion. Limnol. Oceanogr. 22:760-764. Y CNEU461 11/12/2003
Analysis TESL-SOP-3002-3 Total Nitrogen by Combustion and Chemiluminescence Detection, Revision 3.0 City of Tacoma, Washington, Environmental Services Laboratory, Revision 3.0, July 2017. Y CNEU461 06/25/2020
Analysis N-CALC-351.2-353.2 Total Nitrogen calculated by adding Total Kjeldahl Nitrogen by EPA351.2 (Semiautomated Colorimetry) and Nitrate-Nitrite by EPA353.2 (Colorimetric, Automated Cadmium Reduction). Y mbac461 08/26/2024
Analysis NCALC-351.2-4500NO3F Total Nitrogen calculated by adding Total Kjeldahl Nitrogen by EPA351.2 (Semiautomated Colorimetry) and Nitrate-Nitrite by SM4500NO3F (Nitrogen (as Nitrate, NO3) by Automated Cadmium Reduction Method) Y mbac461 08/26/2024
Analysis EPA353.2-ASTM-D3590 Total Nitrogen calculated from Nitrate-Nitrite as N by EPA353.2 and Total Kjeldahl Nitrogen as N by ASTM-D3590. N Y mbac461 08/26/2024
Measurement BIOHabitatMetric051 Total number of taxa present in the sample Y chmo470 06/04/2012
Analysis PLUMB81TC Total Organic & Inorganic Carbon, Infrared (Water), Ignition or Diff Combustion (Soil), Plumb, 1981 (EPA/CE-81-1) Plumb, R.H. 1981. Procedures for handling and chemical analysis of sediment and water samples. Technical Report EPA/CE-81-1. U.S. Army Corps of Engineers, Vicksburg, MS Y CNEU461 09/05/2007
Analysis COMB CO2 Total Organic Carbon (TOC) combustion/CO2 TETRA TECH Y CNEU461 02/20/2004
Analysis WALKLEY-BLACK34 Total organic carbon (TOC) in soil by the Walkley-Black dichromate oxidation method. Walkley, A. and I.A. Black, 1934. An Examination of the Degtjareff Method for Determining Soil Organic Matter and a Proposed Modification of the Chromic Acid Titration Method. Soil Science, 37:29-38. Y CNEU461 08/11/2009
Analysis SW9060AM Total Organic Carbon (TOC) in Water and Wastes by Carbonaceous Analyzer, Modified for Solids (Soil, Sediment, Sludge) (C to CO2), Revision 1. EPA SW846 EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, Revision 1, November 2004, modified version. Y CNEU461 02/25/2019
Analysis SW9060A Total Organic Carbon (TOC) in Water and Wastes by Carbonaceous Analyzer, Revision 1 EPA SW846 EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, Revision 1, November 2004 Y EPA9060A CNEU461 11/08/2021
Analysis EPA415.1 Total Organic Carbon (TOC) in Water by Combustion or Oxidation 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 10/09/2023
Analysis EPA415.2 Total Organic Carbon (TOC) in Water by UV Promoted, Persulfate Oxidation 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 10/09/2023
Analysis SM5310B Total Organic Carbon (TOC), High Temperature Combustion 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 SM5310C Total Organic Carbon (TOC), Persulfate-Ultraviolet or Heated-Persulfate Oxidation 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 SM5310D Total Organic Carbon (TOC), Wet Oxidation Method. Standard Methods Standard Methods Online -- Standard Methods for the Examination of Water and Wastewater. http://standardmethods.org/ Y CNEU461 11/25/2020
Analysis SW9020 Total Organic Halides (TOX) EPA SW846 EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods. N Y benf461 10/18/2023
Analysis SW9020B Total Organic Halides (TOX), Revision 2 EPA SW846 EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods. N Y benf461 10/18/2023
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 VALDERRAMA Total Persulfate Nitrogen (TPN) and Total Phosphorus by Persulfate Digestion Ecology-MEL Valderrama, 1981. The Simultaneous Analysis of Total Nitrogen and Total Phosphorus in Natural Waters. Mar. Chem. (10), 109-122. Y CNEU461 04/20/2017
Analysis TX1005 Total Petroleum Hydrocarbons (TPH) Ranges by Gas Chromatography/Flame Ionization Detection (GC/FID), Texas Commission on Environmental Quality, Revision 03, June 2001. Texas Commission on Environmental Quality, Austin, TX, Revision 03, June 2001. Y CNEU461 03/25/2020
Analysis WTPH-D Total Petroleum Hydrocarbons as Diesel in Soil (Kerosene-Fuel Oil #2 or >Dodecane-Tetracosane) Ecology-MEL Washington Department of Ecology, 1991 (Revised 1995). Guidance for Remediation of Petroleum Contaminated Soils. Ecology Publication No. 91-30. Y CNEU461 04/20/2017
Analysis WTPH-D-SG Total Petroleum Hydrocarbons as Diesel in Soil (Kerosene-Fuel Oil #2 or >Dodecane-Tetracosane), modified with silica gel cleanup Y CNEU461 06/01/2022
Analysis WTPH-DX Total Petroleum Hydrocarbons as Heavy Fuel in Soil Ecology-MEL Washington Department of Ecology, 1991 (Revised 1995). Guidance for Remediation of Petroleum Contaminated Soils. Ecology Publication No. 91-30. Y CNEU461 04/20/2017
Analysis SM4500FTP Total Phosphorous Standard Methods Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF N Y benf461 10/02/2023
Analysis I-4600-85 Total Phosphorus - Colorimetric, Automated, Ascorbic Acid (USGS) U.S. Geological Survey (USGS) Branch of Information Service, Box 25286, MS 417, Federal Center, Denver, CO 80225-0286, Phone: 303-202-4700 Y CNEU461 01/16/2004
Analysis SM4500P-I Total Phosphorus by In-Line UV/Persulfate Digestion and Flow Injection Analysis Standard Methods 18th, 19th, 20th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1992, 1995, 1998. N Y SM4500PI benf461 10/02/2023
Analysis SM4500P-H Total Phosphorus by Manual Digestion and Flow Injection Analysis Standard Methods 18th, 19th, 20th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1992, 1995, 1998. N Y SM4500PH benf461 10/02/2023
Analysis PCALC-365.1-4500P-F Total Phosphorus calculated by adding Phosphorus by EPA365.1 (Phosphorus, All Forms (Colorimetric, Automated, Ascorbic Acid)) and Phosphorus by SM4500PF (Phosphorus/Orthophosphate by Automated Ascorbic Acid Reduction). N Y CNEU461 08/28/2024
Preparation EPA200.2 Total Recoverable Metals Digestion USEPA U.S. Environmental Protection Agency Office of Water 600/R-94-111 N Y benf461 10/04/2023
Analysis SW9070 Total Recoverable Oil and Grease by Gravimetric, Separatory Funnel Extraction EPA SW846 EPA Office of Solid Waste SW-846, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods. (Cross-reference to EPA1664, EPA-821-R-98-002). N Y benf461 10/18/2023
Measurement TRC-CALC Total Residual Chlorine (TRC) by Field Measurement of Manganese+TRC minus Manganese using a Residual Chlorine Meter Y mbac461 08/26/2024
Analysis SM16-209A Total Residue (Solids) Dried at 103-105 deg C Standard Methods 16th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1985. Y KKIN461 08/18/2015
Analysis SM2540B Total Solids Dried from 103 to 105 °C Standard Methods Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF N Y benf461 10/02/2023
Analysis PLUMB81TS Total Solids, Gravimetric, Plumb, 1981 (EPA/CE-81-1) SOIL TECHN Plumb, R.H. 1981. Procedures for handling and chemical analysis of sediment and water samples. Technical Report EPA/CE-81-1. U.S. Army Corps of Engineers, Vicksburg, MS Y CNEU461 09/05/2007
Analysis SM2540D Total Suspended Solids (TSS) Dried at 103 -105 deg C Standard Methods Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF N Y benf461 10/02/2023
Analysis SM16-209C Total Suspended Solids (TSS) Dried at 103-105 deg C Standard Methods 16th ed. Standard Methods for the Examination of Water and Wastewater, APHA-AWWA-WPCF, 1985. N Y benf461 09/28/2023
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