Analytical Methods Approved for Drinking Water Compliance Monitoring of Organic Contaminants ,v^^>^ , tu Analysis for the following contaminants shall be conducted in accordance with the methods in the following table, or their equivalent as determined by EPA. Q \r\|/jX *T The methods and monitoring requirements for these contaminants are specified in 40 CFR 141.24. Additional methods are listed in Appendix A to Subpart C &• of Part 141. The CFR is the legal reference for approved methods and takes precedent over this table. The table should accurately reflect the analytical methods information published in 40 CFR 141. If you find discrepancies, please notify The Safe Drinking Water Hotline (800-426-4791) so that EPA can correct the table. Contaminant ..,.__. Method Organization Number l,l?l-Trichloroethane EPA 502. 2 Rev 2.1 EPA 524. 2 Rev 4.1 EPA 551.1 Rev 1.0 l,l?2-Trichloroethane EPA 502.2 Rev 2.1 EPA 524. 2 Rev 4.1 EPA 551.1 Rev 1.0 1,1-Dichloroethylene EPA 502. 2 Rev 2.1 EPA Publication Reference Title Date Number In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III Publication Order Number PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 Source of Method http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 1 of 21 ------- Contaminant Method Organization Number 1,1-Dichloroethylene EPA 524. 2 Rev 4.1 1,2 Dichlorobenzene EPA 502.2 Rev 2.1 EPA 524. 2 Rev 4.1 1,2,4-Trichlorobenzene EPA 502. 2 Rev 2.1 EPA 524. 2 Rev 4.1 1,2-Dichloroethane EPA 502. 2 Rev 2.1 EPA 524. 2 Rev 4.1 1,2-Dichloropropane EPA 502.2 Rev 2.1 EPA 524. 2 Rev 4.1 Reference Title Date In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III EPA Publication Number EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 Publication Order Number PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 Source of Method http://www.nemi http://www.nemi http : //www. nemi http : //www. nemi http : //www. nemi http : //www. nemi http : //www. nemi http://www.nemi http://www.nemi gov gov gov gov gov gov gov gov gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 2 of 21 ------- Contaminant Method Organization Number Reference Title EPA Publication Publication Order Date Number Number Source of Method 1,4-Dichlorobenzene EPA 502.2Rev2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 524.2Rev4.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III 2,3,7,8-TCDD (dioxin) EPA 1613 Tetra-through Octa-Chlorinated October 1994 EPA/821-B-94-005 PB95-104774 National Technical Information Service (NTIS) Dioxins and Furans by Isotope-Dilution HRGC/HRMS Accurate determination of the chlorinated esters requires hydrolysis of the sample as described in EPA Methods 515.1, 515.2, 515.3, 515.4, and 555 and ASTM Methods D5317-93 and D5317-98 (Reapproved 2003). 2,4,5-TP (Silvex) ASTM D5317-93 Annual Book of ASTM Standards, Vol. International 11.02 ASTM International (ASTM) ASTM D5317-98 Annual Book of ASTM Standards, Vol. International (Reapproved 11.02 2003) http://www.astm.org EPA 515.1 Rev 4.0 In Methods for the Determination of December EPA/600/4-88-039 PB91-231480 National Technical Information Service (NTIS) Organic Compounds in Drinking Water 1988, Revised July 1991 EPA 515.2 Rev 1.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 515.3 Rev 1.0 In Methods for the Determination of August2000 EPA 815-R-00-014 PB2000-106981 http://www.epa.gov/safewater/methods/sourcalt.html Organic and Inorganic Compounds in Drinking Water, Volume 1 EPA 515.4 Rev 1.0 Determination of Chlorinated Acids in April 2000 EPA/815/B-00/001 Drinking Water by Liquid-Liquid Microextraction, Derivatization, and Fast Gas Chromatography with Electron Capture Detection http://www.epa.gov/safewater/methods/sourcalt.html Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 3 of 21 ------- Contaminant Method Organization Number Reference Title Date EPA Publication Number Publication Order Number Source of Method 2,4,5-TP (Silvex) Accurate determination of the chlorinated esters requires hydrolysis of the sample as described in EPA Methods 515.1, 515.2, 515.3, 515.4, and 555 and ASTM Methods D5317-93 and D5317-98 (Reapproved 2003). EPA 555 Rev 1.0 In Methods for the Determination of August 1992 EPA/600/R-92/129 PB92-207703 http://www.nemi.gov Organic Compounds in Drinking Water Supplement II Accurate determination of the chlorinated esters requires hydrolysis of the sample as described in EPA Methods 515.1, 515.2, 515.3, 515.4, and 555 2,4-D (as acid, salts and esters) and ASTM Methods D5317-93 and D5317-98 (Reapproved 2003). ASTM D5317-93 Annual Book of ASTM Standards, Vol. International 11.02 ASTM International (ASTM) ASTM International D5317-98 (Reapproved 2003) Annual Book of ASTM Standards, Vol. 11.02 http://www.astm.org EPA EPA 515.1 Rev 4.0 In Methods for the Determination of December Organic Compounds in Drinking Water 1988, Revised July 1991 EPA/600/4-88-039 PB91-231480 National Technical Information Service (NTIS) EPA 515.2 Rev 1.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 515.3 Rev 1.0 In Methods for the Determination of August2000 EPA 815-R-00-014 PB2000-106981 http://www.epa.gov/safewater/methods/sourcalt.html Organic and Inorganic Compounds in Drinking Water, Volume 1 515.4 Rev 1.0 Determination of Chlorinated Acids in April 2000 EPA/815/B-00/001 Drinking Water by Liquid-Liquid Microextraction, Derivatization, and Fast Gas Chromatography with Electron Capture Detection http://www.epa.gov/safewater/methods/sourcalt.html EPA 555 Rev 1.0 In Methods for the Determination of August 1992 EPA/600/R-92/129 PB92-207703 Organic Compounds in Drinking Water Supplement II http://www.nemi.gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 4 of 21 ------- Contaminant Method Organization Number Reference Title Alachlor EPA Publication Date Number Publication Order Number Source of Method EPA 505 Rev 2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Substitution of the detector specified in Method 505, 507, or 508.1 for the purpose of achieving lower detection limits is allowed as follows. Either an electron capture or nitrogen phosphorous detector may be used provided all regulatory requirements and quality control criteria are met. EPA 507 Rev 2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Substitution of the detector specified in Method 505, 507, or 508.1 for the purpose of achieving lower detection limits is allowed as follows. Either an electron capture or nitrogen phosphorous detector may be used provided all regulatory requirements and quality control criteria are met. EPA 508.1 Rev 2.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Substitution of the detector specified in Method 505, 507, or 508.1 for the purpose of achieving lower detection limits is allowed as follows. Either an electron capture or nitrogen phosphorous detector may be used provided all regulatory requirements and quality control criteria are met. EPA 525.2 Rev 2.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 551.1 Rev 1.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov Atrazine EPA 505 Rev 2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Substitution of the detector specified in Method 505, 507, or 508.1 for the purpose of achieving lower detection limits is allowed as follows. Either an electron capture or nitrogen phosphorous detector may be used provided all regulatory requirements and quality control criteria are met. EPA 507 Rev 2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Substitution of the detector specified in Method 505, 507, or 508.1 for the purpose of achieving lower detection limits is allowed as follows. Either an electron capture or nitrogen phosphorous detector may be used provided all regulatory requirements and quality control criteria are met. Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 5 of 21 ------- Contaminant Method Organization Number Atrazine EPA 508.1 Rev 2.0 EPA 525.2 Rev 2.0 EPA 551.1 Rev 1.0 Syngenta Syngenta AG- Crop 625 Protection, Inc. Benzene EPA 502. 2 Rev 2.1 EPA 524. 2 Rev 4.1 Benzo(a)pyrene Reference Title Date EPA Publication Publication Order Number Number Source of Method In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Substitution of the detector specified in Method 505, 507, or 508.1 for the purpose of achieving lower detection limits is allowed as follows. Either an electron capture or nitrogen phosphorous detector may be used provided all regulatory requirements and quality control criteria are met. In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III EPA/600/R-95-131 PB95-261616 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov http://www.nemi.gov Atrazine in Drinking Water by February Syngenta Crop Protection, Inc. Immunoassay 2001 This method may not be used for the analysis of atrazine in any system where chlorine dioxide is used for drinking water treatment. In samples from all other systems, any result for atrazine generated by Method AG-625 that is greater than one-half the maximum contaminant level (MCL) (in other words, greater than 0. 001 5mg/L or 1.5 ug/L)mustbe confirmed using another approved method for this contaminant and should use additional volume of the original sample collected for compliance monitoring. In instances where a result from Method AG-625 triggers such confirmatory testing, the confirmatory result is to be used to determine compliance. In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III EPA/600/R-95-131 PB95-261616 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov http://www.nemi.gov EPA 525.2 Rev 2.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 550 In Methods for the Determination of July 1990 EPA/600/4-90/020 PB91-146027 Organic Compounds in Drinking Water Supplement I http://www.nemi.gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 6 of 21 ------- Contaminant Method Organization Number Reference Title Date EPA Publication Number Publication Order Number Source of Method Benzo(a)pyrene EPA 550.1 In Methods for the Determination of July 1990 EPA/600/4-90/020 PB91-146027 http://www.nemi.gov Organic Compounds in Drinking Water Supplement I Carbofuran EPA 531.1 Rev 3.1 In Methods for the Determination of Augustl995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 531.2 Rev 1.0 Measurement of N-Methyl- September carbamoyloximes and N-Methyl- 2001 carbamates in Water by Direct Aqueous Injection HPLC with Post Column Derivatization EPA 815/B/01/002 http://www.epa.gov/safewater/methods/sourcalt.html Standard 6610 B Standard Methods for the Examination 2005 Methods of Water and Wastewater, 21 st Edition Standard Methods Standard 6610 B-04 Online version of Standard Methods for Methods the Examination of Water and Online Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved. http: //www. standardmethods. org/ Carbon Tetrachloride EPA 502.2Rev2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 524.2Rev4.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 551.1 Rev 1.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 7 of 21 ------- Contaminant Method Organization Number Chlordane EPA 505 Rev 2.1 EPA 508 Rev 3.1 EPA 508.1 Rev 2.0 EPA 525.2 Rev 2.0 Chlorobenzene EPA 502.2 Rev 2.1 EPA 524. 2 Rev 4.1 cis-Dichloroethylene EPA 502.2 Rev 2.1 EPA 524. 2 Rev 4.1 Dalapon EPA Publication Reference Title Date Number In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III Publication Order Number PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 Source of Method http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov EPA 515.1 Rev 4.0 In Methods for the Determination of December EPA/600/4-88-039 PB91-231480 National Technical Information Service (NTIS) Organic Compounds in Drinking Water 1988, Revised July 1991 Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 8 of 21 ------- Contaminant Method Organization Number Reference Title Date EPA Publication Publication Order Number Number Source of Method Dalapon EPA 515.3 Rev 1.0 In Methods for the Determination of August2000 EPA 815-R-00-014 PB2000-106981 http://www.epa.gov/safewater/methods/sourcalt.html Organic and Inorganic Compounds in Drinking Water, Volume 1 EPA 515.4 Rev 1.0 Determination of Chlorinated Acids in April 2000 EPA/815/B-00/001 Drinking Water by Liquid-Liquid Microextraction, Derivatization, and Fast Gas Chromatography with Electron Capture Detection http://www.epa.gov/safewater/methods/sourcalt.html EPA 552.1 Rev 1.0 In Methods for the Determination of August 1992 EPA/600/R-92/129 PB92-207703 http://www.nemi.gov Organic Compounds in Drinking Water Supplement II EPA 552.2 Rev 1.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 552.3 Rev 1.0 Determination of Haloacetic Acids and July 2003 EPA-815-B-03-002 Dalapon in Drinking Water by Liquid- Liquid Microextraction, Derivatization, and Gas Chromatography with Electron Capture Detection http://www.epa.gov/safewater/methods/sourcalt.html Di(2-ethylhexyl)adipate EPA 506 Rev 1.1 EPA 525.2 Rev 2.0 Di(2-ethylhexyl)phthalate EPA 506 Rev 1.1 EPA 525.2 Rev 2.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 9 of 21 ------- Contaminant Method Organization Number Reference Title EPA Publication Publication Order Date Number Number Source of Method Dibromochloropropane (DBCP) EPA 504.1 Rev 1.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 551.1 Rev 1.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Dichloromethane EPA 502.2Rev2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 524.2Rev4.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Accurate determination of the chlorinated esters requires hydrolysis of the sample as described in EPA Methods 515.1, 515.2, 515.3, 515.4, and 555. Dinoseb EPA 515.1 Rev 4.0 In Methods for the Determination of December EPA/600/4-88-039 PB91-231480 National Technical Information Service (NTIS) Organic Compounds in Drinking Water 1988, Revised July 1991 EPA 515.2 Rev 1.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 515.3 Rev 1.0 In Methods for the Determination of August2000 EPA 815-R-00-014 PB2000-106981 http://www.epa.gov/safewater/methods/sourcalt.html Organic and Inorganic Compounds in Drinking Water, Volume 1 EPA 515.4 Rev 1.0 Determination of Chlorinated Acids in April 2000 EPA/815/B-00/001 Drinking Water by Liquid-Liquid Microextraction, Derivatization, and Fast Gas Chromatography with Electron Capture Detection http://www.epa.gov/safewater/methods/sourcalt.html EPA 555 Rev 1.0 In Methods for the Determination of August 1992 EPA/600/R-92/129 PB92-207703 http://www.nemi.gov Organic Compounds in Drinking Water Supplement II Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 10 of 21 ------- Contaminant Method Organization Number Diquat EPA 549.2 Rev 1.0 Endothall EPA 548.1 Rev 1.0 Endrin EPA 505 Rev 2.1 EPA 508 Rev 3.1 EPA 508.1 Rev 2.0 EPA 525.2 Rev 2.0 EPA 551.1 Rev 1.0 Ethylbenzene EPA 502.2 Rev 2.1 EPA 524. 2 Rev 4.1 Reference Title Date In Methods for the Determination of August 2000 Organic and Inorganic Compounds in Drinking Water, Volume 1 In Methods for the Determination of August 1 992 Organic Compounds in Drinking Water Supplement II In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III EPA Publication Number EPA 815-R-00-014 EPA/600/R-92/129 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 Publication Order Number Source of Method PB2000- 106981 http://www.epa.gov/nerlcwww/ordmeth.htm PB92-207703 http://www.nemi.gov PB95-261616 http://www.nemi.gov PB95-261616 http://www.nemi.gov PB95-261616 http://www.nemi.gov PB95-261616 http://www.nemi.gov PB95-261616 http://www.nemi.gov PB95-261616 http://www.nemi.gov PB95-261616 http://www.nemi.gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 11 of 21 ------- Contaminant Method Organization Number Ethylene dibromide (EDB) EPA 504.1 Rev 1.1 EPA 551.1 Rev 1.0 Glyphosate EPA 547 Standard 6651 Methods Standard 6651 Methods Standard 6651 Methods Heptachlor EPA 505 Rev 2.1 EPA 508 Rev 3.1 EPA 508.1 Rev 2.0 EPA 525.2 Rev 2.0 EPA 551.1 Rev 1.0 EPA Publication Reference Title Date Number In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of July 1 990 EPA/600/4-90/020 Organic Compounds in Drinking Water Supplement I Standard Methods for the Examination 1 992 of Water and Wastewater, 1 8th Edition Standard Methods for the Examination 1995 of Water and Wastewater, 1 9th Edition Standard Methods for the Examination 1998 of Water and Wastewater, 20th Edition In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1995 EPA/600/R-95-131 Organic Compounds in Drinking Water- Supplement III Publication Order Number PB95-261616 PB95-261616 PB9 1-146027 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 Source of Method http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov Standard Methods Standard Methods Standard Methods http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov http://www.nemi.gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 12 of 21 ------- Contaminant Organization Method Number Reference Title Heptachlor Epoxide EPA EPA EPA EPA EPA 505 Rev 2.1 508 Rev 3.1 508.1 Rev 2.0 525.2 Rev 2.0 551.1 Rev 1.0 In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III Hexachlorobenzene EPA EPA EPA EPA EPA 505 Rev 2.1 508 Rev 3.1 508.1 Rev 2.0 525.2 Rev 2.0 551.1 Rev 1.0 In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III Date August August August August August August August August August August 1995 1995 1995 1995 1995 1995 1995 1995 1995 1995 EPA Publication Number EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 Publication Order Number PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 Source of Method http://www.nemi http : //www. nemi http : //www. nemi http://www.nemi http://www.nemi http://www.nemi http : //www. nemi http : //www. nemi http://www.nemi http://www.nemi gov gov gov gov gov gov gov gov gov gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 13 of 21 ------- Contaminant Organization Method Number Reference Title Hexachlorocyclopentadiene EPA EPA EPA EPA EPA Lindane EPA EPA EPA EPA EPA 505 Rev 2.1 508 Rev 3.1 508.1 Rev 2.0 525.2 Rev 2.0 551.1 Rev 1.0 505 Rev 2.1 508 Rev 3.1 508.1 Rev 2.0 525.2 Rev 2.0 551.1 Rev 1.0 In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of Organic Compounds in Drinking Water- Supplement III Date August August August August August August August August August August 1995 1995 1995 1995 1995 1995 1995 1995 1995 1995 EPA Publication Number EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 Publication Order Number PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 Source of Method http://www.nemi http : //www. nemi http : //www. nemi http://www.nemi http://www.nemi http://www.nemi http : //www. nemi http : //www. nemi http://www.nemi http://www.nemi gov gov gov gov gov gov gov gov gov gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 14 of 21 ------- Contaminant Method Organization Number Reference Title Date EPA Publication Number Publication Order Number Source of Method Methoxychlor EPA 505 Rev 2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 508 Rev 3.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 508.1 Rev 2.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 525.2 Rev 2.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 551.1 Rev 1.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov Oxamyl EPA 531.1 Rev 3.1 In Methods for the Determination of Augustl995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 531.2 Rev 1.0 Measurement of N-Methyl- September carbamoyloximes and N-Methyl- 2001 carbamates in Water by Direct Aqueous Injection HPLC with Post Column Derivatization EPA 815/B/01/002 http://www.epa.gov/safewater/methods/sourcalt.html Standard Methods 6610 B Standard Methods for the Examination 2005 of Water and Wastewater, 21 st Edition Standard Methods Standard 6610 B-04 Online version of Standard Methods for Methods the Examination of Water and Online Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved. http: //www. standardmethods. org/ Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 15 of 21 ------- Contaminant EPA Publication Method Publication Order Organization Number Reference Title Date Number Number Source of Method i » I \ PCBs are qualitatively identified as Aroclors and measured for compliance purposes as decachlorobiphenyl. Users of Method 505 may have more (as Aroclors; 1 difficulty ^ achieving the required detection limits than users of Methods 508.1, 525.2 or 508. EPA 505 Rev 2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 508 Rev 3.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 508.1 Rev 2.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 525.2 Rev 2.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III i A ui H° h n PCBs are qualitatively identified as Aroclors and measured for compliance purposes as decachlorobiphenyl. Users of Method 505 may have more (as aecacniorODlpnenylJ 1 difficulty ^ achieving the required detection limits than users of Methods 508.1, 525.2 or 508. EPA SOSARevl.O In Methods for the Determination of December EPA/600/4-88-039 PB91-231480 http://www.nemi.gov Organic Compounds in Drinking Water 1988, Revised July 1991 Pentachlorophenol ASTM D5317-93 Annual Book of ASTM Standards, Vol. ASTM International (ASTM) International 11.02 ASTM D5317-98 Annual Book of ASTM Standards, Vol. http://www.astm.org International (Reapproved 11.02 2003) EPA 515.1 Rev 4.0 In Methods for the Determination of December EPA/600/4-88-039 PB91-231480 National Technical Information Service (NTIS) Organic Compounds in Drinking Water 1988, Revised July 1991 EPA 515.2Revl.l In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 16 of 21 ------- Contaminant Method Organization Number Reference Title EPA Publication Publication Order Date Number Number Source of Method Pentachlorophenol EPA 515.3 Rev 1.0 In Methods for the Determination of August2000 EPA 815-R-00-014 PB2000-106981 http://www.epa.gov/safewater/methods/sourcalt.html Organic and Inorganic Compounds in Drinking Water, Volume 1 EPA Picloram 515.4 Rev 1.0 Determination of Chlorinated Acids in April 2000 EPA/815/B-00/001 Drinking Water by Liquid-Liquid Microextraction, Derivatization, and Fast Gas Chromatography with Electron Capture Detection http://www.epa.gov/safewater/methods/sourcalt.html EPA 525.2 Rev 2.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 555 Rev 1.0 In Methods for the Determination of August 1992 EPA/600/R-92/129 PB92-207703 http://www.nemi.gov Organic Compounds in Drinking Water Supplement II Accurate determination of the chlorinated esters requires hydrolysis of the sample as described in EPA Methods 515.1, 515.2, 515.3, 515.4, and 555 and ASTM Methods D5317-93 and D5317-98 (Reapproved 2003). ASTM D5317-93 Annual Book of ASTM Standards, Vol. International 11.02 ASTM International (ASTM) ASTM D5317-98 Annual Book of ASTM Standards, Vol. International (Reapproved 11.02 2003) http://www.astm.org EPA 515.1 Rev 4.0 In Methods for the Determination of December EPA/600/4-88-039 PB91-231480 National Technical Information Service (NTIS) Organic Compounds in Drinking Water 1988, Revised July 1991 EPA 515.2 Rev 1.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III EPA 515.3 Rev 1.0 In Methods for the Determination of August2000 EPA 815-R-00-014 PB2000-106981 http://www.epa.gov/safewater/methods/sourcalt.html Organic and Inorganic Compounds in Drinking Water, Volume 1 Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 17 of 21 ------- Contaminant Method Organization Number Reference Title Date EPA Publication Number Publication Order Number Source of Method Picloram Accurate determination of the chlorinated esters requires hydrolysis of the sample as described in EPA Methods 515.1, 515.2, 515.3, 515.4, and 555 and ASTM Methods D5317-93 and D5317-98 (Reapproved 2003). EPA 515.4 Rev 1.0 Determination of Chlorinated Acids in April 2000 EPA/815/B-00/001 Drinking Water by Liquid-Liquid Microextraction, Derivatization, and Fast Gas Chromatography with Electron Capture Detection http://www.epa.gov/safewater/methods/sourcalt.html EPA 555 Rev 1.0 In Methods for the Determination of August 1992 Organic Compounds in Drinking Water Supplement II EPA/600/R-92/129 PB92-207703 http://www.nemi.gov Simazine EPA 505 Rev 2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Substitution of the detector specified in Method 505, 507, or 508.1 for the purpose of achieving lower detection limits is allowed as follows. Either an electron capture or nitrogen phosphorous detector may be used provided all regulatory requirements and quality control criteria are met. EPA 507 Rev 2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Substitution of the detector specified in Method 505, 507, or 508.1 for the purpose of achieving lower detection limits is allowed as follows. Either an electron capture or nitrogen phosphorous detector may be used provided all regulatory requirements and quality control criteria are met. EPA 508.1 Rev 2.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 http://www.nemi.gov Organic Compounds in Drinking Water- Supplement III Substitution of the detector specified in Method 505, 507, or 508.1 for the purpose of achieving lower detection limits is allowed as follows. Either an electron capture or nitrogen phosphorous detector may be used provided all regulatory requirements and quality control criteria are met. EPA 525.2 Rev 2.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 551.1 Rev 1.0 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 18 of 21 ------- Contaminant Method Organization Number Styrene EPA 502.2 Rev 2.1 EPA 524. 2 Rev 4.1 Tetrachloroethylene EPA 502. 2 Rev 2.1 EPA 524. 2 Rev 4.1 EPA 551.1 Rev 1.0 Toluene EPA 502.2 Rev 2.1 EPA 524. 2 Rev 4.1 Toxaphene EPA 505 Rev 2.1 EPA 508 Rev 3.1 Reference Title Date In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III EPA Publication Number EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 Publication Order Number PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 Source of Method http://www.nemi http : //www. nemi http : //www. nemi http : //www. nemi http : //www. nemi http://www.nemi http://www.nemi http://www.nemi http : //www. nemi gov gov gov gov gov gov gov gov gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 19 of 21 ------- Contaminant Method Organization Number Toxaphene EPA 508.1 Rev 2.0 EPA 525.2 Rev 2.0 trans-Dichloroethylene EPA 502. 2 Rev 2.1 EPA 524. 2 Rev 4.1 Trichloroethylene EPA 502. 2 Rev 2.1 EPA 524. 2 Rev 4.1 EPA 551.1 Rev 1.0 Vinyl chloride EPA 502.2 Rev 2.1 EPA 524. 2 Rev 4.1 Reference Title Date In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III In Methods for the Determination of August 1 995 Organic Compounds in Drinking Water- Supplement III EPA Publication Number EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 EPA/600/R-95-131 Publication Order Number PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 PB95-261616 Source of Method http://www.nemi http : //www. nemi http : //www. nemi http : //www. nemi http : //www. nemi http://www.nemi http://www.nemi http://www.nemi http : //www. nemi gov gov gov gov gov gov gov gov gov Revised June 2008 Approved Methods for Organic Contaminants - National Primary Drinking Water Regulations Page 20 of 21 ------- Contaminant Method Organization Number Reference Title Date EPA Publication Number Publication Order Number Source of Method Xylenes (total) EPA 502.2Rev2.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov EPA 524.2Rev4.1 In Methods for the Determination of August 1995 EPA/600/R-95-131 PB95-261616 Organic Compounds in Drinking Water- Supplement III http://www.nemi.gov Contact information for methods that are not available on the Internet are summarized in the report titled "Sources of Approved Analytical Methods for National Drinking Water Regulations." 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