Jump to main content or area navigation.

Contact Us

Water: CWA Methods

Approved Industry-Specific Methods

In addition to general purposes methods, EPA has approved special purpose analytical methods. These methods were developed to work in samples or for pollutants specific to certain industrial categories. For example, methods specific to the Pharmaceutical Manufacturing and Pesticide Chemicals industrial categories are listed in Tables IF and IG, respectively, at 40 CFR Part 136.

Methods specific to other industrial categories are listed or incorporated by reference into the regulations at 40 CFR Parts 401-503. These include methods specific to the Pulp, Paper, and Paperboard category (40 CFR Part 430), and specific to Use or Disposal of Sewage Sludge (biosolids) (at 40 CFR Part 503.) Industry-specific methods that are approved for compliance monitoring in the industry for which they are designated may be used for general use, if the same method is listed in Tables IA to IE, or IH at 40 CFR 136.3.

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.


Methods that may be used under 40 CFR Part 439, pharmaceutical manufacturing point source category

This table is derived from Table IF—List of Approved Methods for Pharmaceutical Pollutants. 40 CFR Part 439 is also available for viewing.

Test Methods for Pharmaceutical Pollutants
Number Method Title
502.2 Volatile Organic Compounds in Water by Purge and Trap Capillary Column Gas Chromatography with Photoionization and Electrolytic Conductivity Detectors in Series Revision 2.0 (PDF) (34 pp, 150K)
524.2 Measurement of Purgeable OrganicCompounds in Water by Capillary Column Gas Chromatography/Mass Spectrometry Revision 4.0 (PDF) (43 pp, 164K)
551 Determination of Chlorination Disinfection Byproducts and Chlorinated Solvents in Drinking Water by Liquid-LiquidExtraction and Gas Chromatography withElectron Capture Detection (PDF) (32 pp, 106K)
1624C Volatile Organic Compounds by Isotope Dilution Gas Chromatography-Mass Spectrometry Revision C (PDF) (32 pp, 106K)
1625C Semivolatile Organic Compounds by Isotope Dilution Gas Chromatography-Mass Spectrometry Revision C (PDF) (68 pp, 317K)
1666 Volatile Organic Compounds Specific to the Pharmaceutical Manufacturing Industry by Isotope Dilution Gas Chromatography/Mass Spectrometry (PDF) (49 pp, 130K)
1667 Formaldehyde, Isobutyraldehyde, and Furfural by Derivatization and High Performance Liquid Chromatography (PDF) (21 pp, 68K)
1671 Volatile Organic Compounds Specific to the Pharmaceutical Manufacturing Industry by Gas Chromatography/Flame Ionization Detector (PDF) (19 pp, 56K)

Top of Page


Methods that may be used under 40 CFR 455, pesticide chemical point source category

This table is derived from Table IG—Test Methods for Pesticide Active Ingredients. 40 CFR Part 455 is also available for viewing.

Test Methods for Pesticide Active Ingredients
Number Method Title
200.7 Determination of Metals and Trace Elements in Water and Wastes by Inductively Coupled Plasma-Atomic Emission Spectrometry Revision 4.4 (PDF) (58 pp, 223K)
200.9 Determination of Trace Elements by Stabilized Temperature Graphite Furnace Atomic Absorption Spectrometry Revision 2.2 (PDF) (42 pp, 166K)
505 Analysis of Organohalide Pesticides and Commercial Polychlorinated Biphenyl (PCB) Products in Water by Microextraction and Gas Chromatography Revision 2.0 (PDF) (33 pp, 282K)
507 Determination of Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector Revision 2.0 (PDF) (28 pp, 142K)
508 Determination of Chlorinated Pesticides in Water by Gas Chromatography with an Electron Capture Detector Revision 3.0 (PDF) (28 pp, 215K)
508.1 Determination of Chlorinated Pesticides, Herbicides, and Organohalides by Liquid-Solid Extraction and Electron Capture Gas Chromatography Revision 1.0 (PDF) (28 pp, 189K)
508.1 Determination of Chlorinated Pesticides, Herbicides, and Organohalides by Liquid-Solid Extraction and Electron Capture Gas Chromatography Revision 2.0 (PDF) (36 pp, 216K)
515.1 Determination of Chlorinated Acids in Water by Gas Chromatography with an Electron Capture Detector Revision 4.0 (PDF) (32 pp, 158K)
515.2 Determination of Chlorinated Acids in Water Using Liquid-Solid Extraction and Gas Chromatography with an Electron Capture Detector Revision 1.0 (PDF) (38 pp, 170K)
525.1 Determination of Organic Compounds in Drinking Water by Liquids-Solid Extraction and Capillary Column Gas Chromatography/Mass Spectrometry Revision 2.2 (PDF) (40 pp, 444K)
531.1 Measurement of N-Methylcarbamoyloximes and N-Methylcarbamates in Water by Direct Aqueous Injection High Performance Liquid Chromatography with Post Column Derivatization Revision 3.0 (PDF) (22 pp, 114K)
547 Determination of Glyphosate in Drinking Water by Direct-Aqueous-Injection High Performance Liquid Chromatography, Post-Column Derivatization, and Fluorescence Detection (PDF) (16 pp, 57K)
548 Determination of Endothall in Drinking Water by Aqueous Derivatization, Liquid-Solid Extraction, and Gas Chromatography with Electron Capture Detection (PDF) (19 pp, 103K)
548.1 Determination of Endothall in Drinking Water by Ion Exchange Extraction, Acidic Methanol Methylation and Gas Chromatography/Mass Spectrometry Revision 1.0 (PDF) (28 pp, 188K)
553 Determination of Benzidines and Nitrogen-Containing Pesticides in Water by Liquid-Liquid Extraction or Liquid-Solid Extraction and Reverse Phase High Performance Liquid Chromatography/Particle Beam/Mass Spectrometry Revision 1.1 (PDF) (39 pp, 173K)
555 Determination of Chlorinated Acids in Water by High Performance Liquid Chromatography with a Photodiode Array Ultraviolet Detector Revision 1.0 (PDF) (25 pp, 139K)
608 Organochlorine Pesticides and PCBs
608.1 The Determination of Organochlorine Pesticides in Municipal and Industrial Wastewater (PDF) (20 pp, 81K)
608.2 The Determination of Certain Organochlorine Pesticides in Municipal and Industrial Wastewater (PDF) (18 pp, 79K)
614 The Determination of Organophosphorus Pesticides in Municipal and Industrial Wastewater (PDF) (20 pp, 82K)
614.1 The Determination of Organophosphorus Pesticides in Municipal and Industrial Wastewater (PDF) (17 pp, 74K)
615 The Determination of Chlorinated Herbicides in Municipal and Industrial Wastewater (PDF) (21 pp, 92K)
617 The Determination of Organohalide Pesticides and PCBs in Municipal and Industrial Wastewater (PDF) (32 pp, 195K)
619 The Determination of Triazine Pesticides in Municipal and Industrial Wastewater (PDF) (21 pp, 95K)
622 The Determination of Organophosphorus Pesticides in Municipal and Industrial Wastewater (PDF) (21 pp, 123K)
622.1 The Determination of Thiophosphate Pesticides in Municipal and Industrial Wastewater (PDF) (21 pp, 98K)
625 Base/Neutrals and Acids
627 The Determination of Dinitroaniline Pesticides in Municipal and Industrial Wastewater (PDF) (17 pp, 86K)
629 The Determination of Cyanazine in Municipal and Industrial Wastewater (PDF) (17 pp, 82K)
630 The Determination of Dithiocarbamate Pesticides in Municipal and Industrial Wastewater (PDF) (13 pp, 42K)
630.1 The Determination of Dithiocarbamates Pesticides in Municipal and Industrial Wastewater (PDF) (14 pp, 58K)
631 The Determination of Benomyl and Carbendazim in Municipal and Industrial Wastewater (PDF) (16 pp, 77K)
632 The Determination of Carbamate and Urea Pesticides in Municipal and Industrial Wastewater (PDF) (19 pp, 85K)
632.1 The Determination of Carbamate and Amide Pesticides in Municipal and Industrial Wastewater (PDF) (13 pp, 67K)
633 The Determination of Organonitrogen Pesticides in Municipal and Industrial Wastewater (PDF) (18 pp, 82K)
633.1 The Determination of Neutral Nitrogen-Containing Pesticides in Municipal and Industrial Wastewaters (PDF) (20 pp, 97K)
637 The Determination of MBTS and TCMTB in Municipal and Industrial Wastewater (PDF) (18 pp, 92K)
645 The Determination of Certain Amine Pesticides and Lethane in Municipal and Industrial Wastewater (PDF) (18 pp, 84K)
1625B Semivolatile Organic Compounds by Isotope Dilution Gas Chromatography-Mass Spectrometry Revision B
1625C Semivolatile Organic Compounds by Isotope Dilution Gas Chromatography-Mass Spectrometry Revision C (PDF) (68 pp, 317K)
1656 The Determination of Organohalide Pesticides in Municipal and Industrial Wastewater (PDF) (43 pp, 145K)
1657 The Determination of Organophosphorus Pesticides in Municipal and Industrial Wastewater (PDF) (39 pp, 178K)
1658 The Determination of Phenoxy-Acid Herbicides in Municipal and Industrial Wastewater (PDF) (36 pp, 175K)
1659 The Determination of Dazomet in Municipal and Industrial Wastewater (PDF) (17 pp, 61K)
1660 The Determination of Pyrethrins and Pyrethroids in Municipal and Industrial Wastewater (PDF) (18 pp, 54K)
1661 The Determination of Bromoxynil in Municipal and Industrial Wastewater (PDF) (15 pp, 48K)

Top of Page


Jump to main content.