E. coli Colilert 9223 B 9223 B-97 Colisure 9223 B 9223 B-97 Colilert-18 9223 B 9223 B-97 Readycult® Readycult®3 Colitag Modified Colitag™ 4 Chromocult® Chromocult® 5 Enterococci Multiple-Tube 9230 B-04 Technique Footnotes 1 Standard Methods for the Examination of Water and Wastewater, 21st edition (2005). Available from American Public Health Association, 800 I Street NW, Washington, DC 20001-3710. 2 Standard Methods Online are available at http://www.standardmethods.org. The year in which each method was approved by the Standard Methods Committee is designated by the last two digits in the method number. The methods listed are the only online versions that may be used. 3 Readycult® Method, “Readycult® Coliforms 100 Presence/Absence Test for Detection and Identification of Coliform Bacteria and Escherichia coli in Finished Waters,” January, 2007. Version 1.1. Available from EMD Chemicals (affiliate of Merck KGaA,, Darmstadt, Germany), 480 S. Democrat Road, Gibbstown, NJ 08027-1297. 4 Modified ColitagTM Method. “Modified ColitagTM Test Method for the Simultaneous Detection of E. Coli and other Total Coliforms in Water (ATP D05-0035),” August 28, 2009. Available at http://www.nemi.gov or from CPI International, 5580 Skylane Boulevard, Santa Rosa, CA 95403. 5 Chromocult® Method, “Chromocult® Coliform Agar Presence/Absence Membrane Filter Test Method for Detection and Identification of Coliform Bacteria and Escherichia coli in Finished Waters,” November, 2000. Version 1.0. EMD Chemicals (affiliate of Merck KGaA,, Darmstadt, Germany), 480 S. Democrat Road, Gibbstown, NJ 08027-1297.
(b) Public Water system required to monitor for turbidity by this Chapter must use one of the methods listed in the following table: Table 0400-45-01-.14(10)(b) Turbidity4 Nephelometric Method 2130 B NephelometricMethod 180.11 Great Lakes Instruments Method 22 Hach FilterTrak 101333 Footnotes
- 1. ‘‘Methods for the Determination of Inorganic Substances in Environmental Samples’’, EPA/600/R-93/100, August 1993. Available at NTIS, PB94-121811.
- 2. GLI Method 2, ‘‘Turbidity’’, November 2, 1992, Great Lakes Instruments, Inc., 8855 North 55th Street, Milwaukee, Wisconsin
- 53223.
- 3. A description of the Hach FilterTrak Method 10133, ‘‘Determination of Turbidity by Laser Nephelometry,’’ January 2000, Revision 2.0, can be obtained from; Hach Co., P.O. Box 389, Loveland, CO 80539–0389, telephone: 800-227-4224.
- 4. Styrene divinyl benzene beads (e.g. AMCO-AEPA–1 or equivalent) and stabilized formazin (e.g. Hach StablCal TM or equivalent) are acceptable substitutes for formazin.
- 1. Alternative testing methods for turbidity given in Table 0400-45-01-.14(10)(b) are given in the following table: Table 0400-45-01-.14(10)(b)1. Contaminant Methodology SM 21st Edition1 Other Turbidity Nephelometric Method 2130 B Laser Nephelometry (on-line) Mitchell M52712 LED Nephelometry (on-line) Mitchell M53313 LED Nephelometry (on-line) AMI Turbiwell4 LED Nephelometry (on-line) Orion AQ45005 Footnotes 1 Standard Methods for the Examination of Water and Wastewater, 21st edition (2005). Available from American Public Health Association, 800 I Street NW, Washington, DC 20001-3710 2 Mitchell Method M5271, Revision 1.1. “Determination of Turbidity by Laser Nephelometry,” March 5, 2009. Available at http:/www.nemi.gov or from Leck Mitchell, Ph.D., PE, 656 Independence Valley Dr., Grand Junction, CO 81507. 3 Mitchell Method M5331, Revision 1.1. “Determination of Turbidity by LED Nephelometry,” March 5, 2009. Available at http:/www.nemi.gov or from Leck Mitchell, Ph.D., PE, 656 Independence Valley Dr., Grand Junction, CO 81507. 4 AMI Turbiwell, “Continuous Measurement of Turbidity Using a SWAN AMI Turbiwell Turbidimeter,” August 2009. Available at http://www.nemi.gov or from Markus Bernasconi, SWAN Analytische Instrumente AG, Studbachstrasse 13, CH-8340 Hinwil, Switzerland. 5 Orion Method AQ4500, Revision 1.0. “Determination of Turbidity by LED Nephelometry,” May 8, 2009. Available at http://www.nemi.gov or from Thermo Scientific, 166 Cummings Center, Beverly, MA 01915, http://www.thermo.com.
(c) Public water systems required to monitor by this Chapter for any inorganic contaminants listed in the following table must utilize one of the approved methods for that contaminant listed in the following table: Inorganic Contaminants Analytical Methods Table 0400-45-01-.14(10)(c) SM 4 (18th, SM 4 (20th Contaminant Methodology 13 EPA ASTM 3 SM Online 22 Other 19th ed.) ed.) D1067-92, 02
- 1. Alkalinity Titrimetric B 2320 B 2320 B 2320 B-97 Electrometric titration I-1030-85 5 Inductively Coupled
- 2. Antimony Plasma 200.82 (ICP)-Mass Spectrometry Hydride-Atomic Absorption D3697-92, 02 Atomic Absorption;Platform 200.92 Atomic Absorption; Furnace 3113 B 3113 B-99
- 3. Arsenic ICP-Mass Spectrometry 200.82 Atomic Absorption;Platform 200.92 Atomic Absorption; D2972-97, 03 Furnace C 3113 B 3113 B-99 Hydride Atomic D2972-97, 03 Absorption B 3114 B 3114 B-97
- 4. Asbestos Transmission Electron 100.19 Microscopy Transmission Electron 100.210 Microscopy Inductively Coupled
- 5. Barium Plasma 200.72 3120 B 3120 B 3120 B-99 ICP-Mass Spectrometry 200.82 Atomic Absorption; Direct 3111D 3111 D-99 Atomic Absorption; Furnace 3113 B 3113 B-99 Inductively Coupled
- 6. Beryllium Plasma 200.72 3120 B 3120 B 3120 B-99 ICP-Mass Spectrometry 200.82 Atomic Absorption;Platform 200.92 Atomic Absorption; D3645-97, 03 Furnace B 3113 B 3113 B-99 Inductively Coupled
- 7. Cadmium Plasma 200.72 ICP-Mass Spectrometry 200.82 Atomic Absorption;Platform 200.92 Atomic Absorption; Furnace 3113 B 3113 B-99 3500-Ca B-
- 8. Calcium EDTA titrimetric D511-93, 03 A 3500-Ca D 3500-Ca B 97 Atomic Absorption; Direct D511-93, 03 B 3111 B 3111 B-99 Aspiration. Inductively Coupled Plasma 200.72 3120 B 3120 B 3120 B-99 Ion Chromatography D6919-03 Inductively Coupled
- 9. Chromium Plasma 200.72 3120 B 3120 B 3120 B-99 ICP-Mass Spectrometry 200.82 Atomic Absorption;Platform 200.92 Atomic Absorption; Furnace 3113 B 3113 B-99 Atomic Absorption; D1688-95, 02
- 10. Copper Furnace C 3113 B 3113 B-99 D1688-95, 02 Atomic Absorption; Direct A 3111 B 3111 B-99 Aspiration. Inductively Coupled Plasma 200.72 3120 B 3120 B 3120 B-99 ICP-Mass spectrometry 200.82 Atomic Absorption;Platform 200.92 D1125-95 11.Conductivity Conductance 2510 B 2510 B 2510 B-97 (Reapproved 1999) A 4500-CN‾
- 12. Cyanide Manual Distillation D2036-98 A 4500-CN‾ C C followed by 4500- Spectrophotometric, D2036-98 B 4500-CN‾ G CN‾G 4500-CN‾ G- Amenable. 99 4500-CN‾ Spectro-photometric D2036-98 A 4500-CN‾E E 4500-CN‾ E- I-3300-855 Manual. 99 Spectro-photometric 335.46 Semi-automated. 4500-CN‾ Selective Electrode 4500-CN‾ F F 4500-CN‾ F- 99 Kelada-01 UV, Distillation, 16 Spectrophotometric. Micro Distillation, Flow QuikChem 10- Injection, 204-00-1- Spectrophotometric. X17 Ligand Exchange and D6888-04 OIA-1677, Amperometry19 DW19
- 13. Fluoride Ion Chromatography 300.06, D4327-97, 03 4110 B 4110 B 4110 B-00 300.118 4500-F‾ B, Manual Distill; Color. 4500-F‾ B, D 4500-F‾ B, D- SPADNS. D 97 D1179-93, 99 Manual Electrode B 4500-F‾ C 4500-F‾ C 4500-F‾ C-97 Automated Electrode 380-75WE11 Automated Alizarin 4500-F‾ E 4500-F‾ E 4500-F‾ E-97 129-71W11 Capillary Ion D6508, Electrophoresis Rev. 222 Atomic Absorption; D3559-96, 03
- 14. Lead Furnace D 3113 B 3113 B-99 ICP-Mass spectrometry 200.82 Atomic Absorption;Platform 200.92 Differential Pulse Anodic Method Stripping Voltametry 100115
- 15. Magnesium Atomic Absorption D511-93, 03 B 3111 B 3111 B-99 ICP 200.72 3120 B 3120 B 3120 B-99 3500-Mg B- Complexation Titrimetric D511-93, 03 A 3500-Mg E 3500-Mg B 97 Methods Ion Chromatography D6919-03
- 16. Mercury Manual, Cold Vapor 245.12 D3223-97, 02 3112 B 3112 B-99 Automated, Cold Vapor 245.21 ICP-Mass Spectrometry 200.82 Inductively Coupled
- 17. Nickel Plasma 200.72 3120 B 3120 B 3120 B-99 ICP-Mass Spectrometry 200.82 Atomic Absorption;Platform 200.92 Atomic Absorption; Direct 3111 B 3111 B-99 Atomic Absorption; Furnace 3113 B 3113 B-99
- 18. Nitrate Ion Chromatography 300.06 D4327-97, 03 4110 B 4110 B 4110 B-00 B-10118 300.12 4500- 4500-NO3‾ F- Automated Cadmium 353.26 D3867-90 A 4500-NO3‾ F NO3‾F 00 Reduction 4500- 4500-NO3‾ D Ion Selective Electrode 4500-NO3‾ D NO3‾D -00 6017 4500- 4500-NO3‾ Manual Cadmium D3867-90 B 4500-NO3‾ E NO3‾E E-00 Reduction D6508, Rev Capillary Ion 222 Electrophoresis
- 19. Nitrite Ion Chromatography 300.06 D4327-97, 03 4110 B 4110 B 4110 B-00 B-1011 8 300.12 4500- 4500-NO3‾ F Automated Cadmium 353.26 D3867-90 A 4500-NO3‾ F NO3‾F -00 Reduction Manual Cadmium 4500- 4500-N O3‾ Reduction D3867-90 B 4500-NO3‾E NO3‾E E-00 4500- 4500-NO2‾B- Spectrophotometric 4500-NO2 ‾B NO2‾B 00 D6508, Capillary Ion Rev. Electrophoresis 222
- 20. Ortho- phosphate12 Colorimetric, Automated, 365.16 4500-P F 4500-P F Ascorbic Acid. Colorimetric, ascorbic D515-88 A 4500-P E 4500-P E acid, single reagent. Colorimetric I-1601-855 Phosphomolybdate; Automated-seg- I-2601-905 mented flow; Automated Discrete I-2598-855 Ion Chromatography 300.06 D4327-97, 03 4110 B 4110 B 4110 B-00 300.118 D6508, Capillary Ion Electro- Rev. phoresis. 222 4500-H+ B -
- 21. pH Electrometric 150.1, D1293-95, 99 4500-H+ B 4500-H+ B 00 150.21 Hydride-Atomic D3859-98, 03
- 22. Selenium Absorption A 3114 B 3114 B-97 ICP-Mass Spectrometry 200.82 Atomic Absorption;Platform 200.92 Atomic Absorption; D3859-98, 03 Furnace B 3113 B 3113 B-99
- 23. Silica Colorimetric, Molybdate I-1700-855 Blue Automated- segmentedFlow I-2700-855 Colorimetric D859-94, 00. 4500-SiO2 4500-SiO2 C- Molybdosilicate . 4500-Si D C 97 4500-SiO2 4500-Si E Heteropoly blue 4500-SiO2 D- D 97 4500-SiO2 4500-SiO2 Automated for Molyb- 4500-Si F E E- date-reactive Silica. 97 Inductively Coupled Plasma 200.72 3120 B 3120 B 3120 B-99 Inductively Coupled
- 24. Sodium Plasma 200.72 Atomic Absorption; Direct 3111 B 3111 B-99 Aspiration. Ion Chromatography D6919-03
- 25. Temperature Thermometric 2550 2550 2550-00
- 26. Thallium ICP-Mass Spectrometry 200.82 Atomic Absorption;Platform 200.92 Footnotes
- 1. ‘‘Methods for Chemical Analysis of Water and Wastes,’’ EPA/600/4-79/020, March 1983. Available at NTIS, PB84-128677.
- 2. ‘‘Methods for the Determination of Metals in Environmental Samples—Supplement I,’’ EPA/600/R-94/111, May 1994. Available at NTIS, PB95-125472.
- 3. Annual Book of ASTM Standards, 1994, 1996, 1999, or 2003, Vols. 11.01 and 11.02, ASTM International; any year containing the cited version of the method may be used. The previous versions of D1688-95A, D1688-95C (copper), D3559-95D (lead), D1293-95 (pH), D1125-91A (conductivity) and D859-94 (silica) are also approved. These previous versions D1688-90A, C; D3559-90D, D1293-84, D1125-91A and D859-88, respectively are located in the Annual Book of ASTM Standards, 1994, Vol. 11.01. Copies may be obtained from ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428.
- 4. Standard Methods for the Examination of Water and Wastewater, 18th edition (1992), 19th edition (1995), or 20th edition (1998). American Public Health Association, 1015 Fifteenth Street, NW., Washington, DC 20005. The cited methods published in any of these three editions may be used, except that the versions of 3111 B, 3111 D, 3113 B and 3114 B in the 20th edition may not be used.
- 5. Method I-2601-90, Methods for Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Inorganic and Organic Constituents in Water and Fluvial Sediment, Open File Report 93-125, 1993; For Methods I-1030-85; I- 1601-85; I-1700-85; I-2598-85; I-2700-85; and I-3300-85 See Techniques of Water Resources Investigation of the U.S. Geological Survey, Book 5, Chapter A-1, 3rd edition., 1989; Available from Information Services, U.S. Geological Survey, Federal Center, Box 25286, Denver, CO 80225-0425.
- 6. ‘‘Methods for the Determination of Inorganic Substances in Environmental Samples,’’ EPA/600/R-93/100, August 1993. Available at NTIS, PB94-120821.
- 7. The procedure shall be done in accordance with the Technical Bulletin 601 “Standard Method of Test for Nitrate in Drinking Water,” July 1994, PN 221890-001, Analytical Technology, Inc. Copies may be obtained from ATI Orion, 529 Main Street, Boston, MA 02129.
- 8. Method B-1011, ‘‘Waters Test Method for Determination of Nitrite/Nitrate in Water Using Single Column Ion Chromatography,’’ August 1987. Copies may be obtained from Waters Corporation, Technical Services Division, 34 Maple Street, Milford, MA 01757, Telephone: 508/482-2131, Fax: 508/482-3625.
- 9. Method 100.1, ‘‘Analytical Method For Determination of Asbestos Fibers in Water,’’ EPA/600/4-83/043, EPA, September 1983. Available at NTIS, PB83-260471.
- 10. Method 100.2, ‘‘Determination of Asbestos Structure Over 10-µm In Length In Drinking Water,’’ EPA/600/R-94/134, June 1994. Available at NTIS, PB94-201902.
- 11. Industrial Method No. 129-71W, ‘‘Fluoride in Water and Wastewater,’’ December 1972, and Method No. 380-75WE, ‘‘Fluoride in Water and Wastewater,’’ February 1976, Technicon Industrial Systems. Copies may be obtained from Bran & Luebbe, 1025 Busch Parkway, Buffalo Grove, IL 60089.
- 12. Unfiltered, no digestion or hydrolysis.
- 13. Because MDLs reported in EPA Methods 200.7 and 200.9 were determined using a 2x preconcentration step during sample digestion, MDLs determined when samples are analyzed by direct analysis (i.e., no sample digestion) will be higher. For direct analysis of cadmium and arsenic by Method 200.7, and arsenic by Method 3120 B, sample preconcentration using pneumatic nebulization may be required to achieve lower detection limits. Preconcentration may also be required for direct analysis of antimony, lead, and thallium by Method 200.9; antimony and lead by Method 3113 B; and lead by Method D3559-90D, unless multiple in-furnace depositions are made.
- 14. If ultrasonic nebulization is used in the determination of arsenic by Methods 200.7, 200.8, or SM 3120 B, the arsenic must be in the pentavalent state to provide uniform signal response. For Methods 200.7 and 3120 B, both samples and standards must be diluted in the same mixed acid matrix concentration of nitric and hydrochloric acid with the addition of 100 µL of 30% hydrogen peroxide per 100 mL of solution. For direct analysis of arsenic with Method 200.8 using ultrasonic nebulization, samples and standards must contain 1 mg/L of sodium hypochlorite.
- 15. The description for Method Number 1001 for lead is available from Palintest, LTD, 21 Kenton Lands Road, P.O. Box 18395, Erlanger, KY 41018. Or from the Hach Company, P.O. Box 389, Loveland, CO 80539.
- 16. The description for the Kelada-01 Method, ‘‘Kelada Automated Test Methods for Total Cyanide, Acid Dissociable Cyanide, And Thiocyanate,’’ Revision 1.2, August 2001, EPA # 821-B01-009 for cyanide is available from the National Technical Information Service (NTIS), PB 2001-108275, 5285 Port Royal Road, Springfield, VA 22161. The toll free telephone number is 800-553-
- 6847. Note: A 450-W UV lamp may be used in this method instead of the 550-W lamp specified if it provides performance within the quality control (QC) acceptance criteria of the method in a given instrument. Similarly, modified flow cell configurations and flow conditions may be used in the method, provided that the QC acceptance criteria are met.
- 17. The description for the QuikChem Method 10-204-00-1-X, ‘‘Digestion and distillation of total cyanide in drinking and wastewaters using MICRO DIST and determination of cyanide by flow injection analysis,’’ Revision 2.1, November 30, 2000, for cyanide is available from Lachat Instruments, 6645 W. Mill Rd., Milwaukee, WI 53218. Telephone: 414-358-4200.
- 18. ‘‘Methods for the Determination of Organic and Inorganic Compounds in Drinking Water,’’ Vol. 1, EPA 815-R-00-014, August
- 2000. Available at NTIS, PB2000-106981.
- 19. Method OIA-1677, DW ‘‘Available Cyanide by Flow Injection, Ligand Exchange, and Amperometry,’’ January 2004. EPA-821- R-04-001, Available from ALPKEM, A Division of OI Analytical, P.O. Box 9010, College Station, TX 77842-9010.
- 20. Sulfide levels below those detected using lead acetate paper may produce positive method interferences. Test samples using a more sensitive sulfide method to determine if a sulfide in-terference is present, and treat samples accordingly.
- 21. Standard Methods Online are available at http://www.standardmethods.org. The year in which each method was approved by the Standard Methods Committee is designated by the last two digits in the method number. The methods listed are the only online versions that may be used.
- 22. Method D6508, Rev. 2, ‘‘Test Method for Determination of Dissolved Inorganic Anions in Aqueous Matrices Using Capillary Ion Electrophoresis and Chromate Electrolyte,’’ available from Waters Corp, 34 Maple St, Milford, MA, 01757, Telephone: 508/482- 2131, Fax: 508/482-3625.
- 1. The inorganic contaminants from Table 0400-45-01-.14(10)(c) that have alternative testing methods are given in the following table: Table 0400-45-01-.14(10)(c)1. Contaminant Methodology EPA SM 21st SM ASTM3 Other Method Edition1 Online2 Alkalinity Titrimetric 2320 B Antimony Hydride – Atomic D 3697- Absorption 07 Atomic Absorption; 3113 B Furnace Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.24 emission spectrometry (AVICP-AES) Arsenic Atomic Absorption; 3113 B D 2972- Furnace 08 C Hydride Atomic 3114 B D 2972- Absorption 08 B Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Barium Inductively Coupled 3120 B Plasma Atomic Absorption; 3111 D Direct Atomic Absorption; 3113 B Furnace Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Beryllium Inductively Coupled 3120 B Plasma Atomic Absorption; 3113 B D 3645- Furnace 08 B Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Cadmium Atomic Absorption; 3113 B Furnace Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Calcium EDTA titrimetric 3500-Ca D 511-09 B A Atomic Absorption; 3111 B D 511-09 Direct Aspiration B Inductively Coupled 3120 B Plasma Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Chromiuim Inductively Coupled 3120 B Plasma Atomic Absorption; 3113 B Furnace Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Copper Atomic Absorption; 3113 B D 1688- Furnace 07 C Atomic Absorption; 3111 B D 1688- Direct Aspiration 07 A Inductively Coupled 3120 B Plasma Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Conductivity Conductance 2510 B Cyanide Manual Distillation D2036- followed by: 06 A Spectro- 4500-CN- D2036- photometric, G 06 B Amenable Spectro- 4500-CN- D2036- photometric Manual E 06 A Selective Electrode 4500-CN- F Gas ME355.015 Chromatography/Mass Spectrometry Headspace Fluoride Ion Chromatography 4110 B Manual Distillation; 4500-F- Colorimetric SPADNS B, D Manual Electrode 4500-F- C D1179- 04 B Automated Alizarin 4500-F- E Lead Atomic Absorption; 3113 B D 3559- Furnace 08 D Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Magnesium Atomic Absorption 3111 B D 511-09 B Inductively Coupled 3120 B Plasma Complexation 3500-Mg D 511-09 Titrimetric Methods B A Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Mercury Manual, Cold Vapor 3112 B Nickel Inductively Coupled 3120 B Plasma Atomic Absorption; 3111 B Direct Atomic Absorption; 3113 B Furnace Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Nitrate Ion Chromatography 4110 B Automated Cadmium 4500- Reduction NO3 - F Manual Cadmium 4500- Reduction NO3 - E Ion Selective 4500- Electrode NO2 - B Reduction/Colorimetric Systea Easy (1 – Reagent)6 Nitrite Ion Chromatography 4110 B Automated Cadmium 4500- Reduction NO3 - F Manual Cadmium 4500- Reduction NO3 - E Spectrophotometric 4500- NO2 - B Reduction/Colorimetric Systea Easy (1 – Reagent)6 Orthophosphate Ion Chromatography 4110 B Colorimetric, ascorbic 4500-P E 4500-P acid, single reagent E-99 Colorimetric, 4500-P F 4500-P Automated, Ascorbic F-99 Acid pH Electrometric 4500-H+ B Selenium Hydride-Atomic 3114 B D 3859- Absorption 08 A Atomic Absorption; 3113 B D 3859- Furnace 08 B Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Silica Colorimetric D859-05 Molybdosilicate 4500- SiO2 C Heteropoly blue 4500- SiO2 D Automated for 4500- Molybdate-reactive SiO2 E Silica Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Inductively Coupled 3120 B Plasma Sodium Atomic Absorption; 3111 B Direct Aspiration Axially viewed 200.5, inductively coupled Revision plasma-atomic 4.2 emission spectrometry (AVICP-AES) Temperature Thermometric 2550 Footnotes 1 Standard Methods for the Examination of Water and Wastewater, 21st edition (2005). Available from American Public Health Association, 800 I Street NW, Washington, DC 20001-3710 2 Standard Methods Online are available at http://www.standardmethods.org. The year in which each method was approved by the Standard Methods Committee is designated by the last two digits in the method number. The methods listed are the only online versions that may be used. 3 Available from ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or http://astm.org. The methods listed are the only alternative versions that may be used. 4 EPA Method 200.5, Revision 4.2. “Determination of Trace Elements in Drinking Water by Axially Viewed Inductively Coupled Plasma-Atomic Emission Spectrometry.” 2003. EPA/600/R-06/115. (Available at http://www.epa.gov/nerlcwww.ordmeth.htm.) 5 Method D99-003, Revision 3.0. “Free Chlorine Species (HOCl- and OCl-) by Test Strip,” November 21, 2003. Available from Industrial Test Systems, Inc., 1875 Langston St., Rock Hill, SC 29730. 6 Systea Easy (1 – Reagent). “Systea Easy (1 – Reagent) Nitrate Method,” February 4, 2009. Available at http://www.nemi.gov or from Systea Scientific, LLC., 900 Jorie Blvd., Suite 35, Oak Brook, IL 60523.
(d) Detection Limits for Inorganic Contaminants methodology specified below must be equal to or less than the requirements in the following: Table 0400-45-01-.14(10)(d) Detection Limits for Inorganic Contaminants MCL Detection Contaminant (mg/l) Methodology limit (mg/1) Antimony 0.006 Atomic Absorption Furnace 0.003 5 Atomic Absorption: Platform 0.0008 ICP-Mass Spectrometry 0.0004 Hydride-Atomic Absorption 0.001 Arsenic 0.016 Atomic Absorption Furnace 0.001 Atomic Absorption: Platform Stabilized Temperature 70.0005 Atomic Absorption: Gaseous Hydride 0.001 ICP-Mass Spectrometry 80.0014 1 Asbestos 7 MFL Transmission Electron Microscopy 0.01 MFL Barium 2 Atomic Absorption; furnace technique 0.002 Atomic Absorption; Direct Aspiration 0.1 Inductively Coupled Plasma 0.002(0.001) Beryllium 0.004 Atomic Absorption; Furnace 0.0002 5 Atomic Absorption; Platform 0.00002 2 Inductively Coupled Plasma 0.0003 ICP-Mass Spectrometry 0.0003 Cadmium 0.005 Atomic Absorption; furnace technique 0.0001 Inductively Coupled Plasma 0.001 Chromium 0.1 Atomic Absorption; furnace technique 0.001 Inductively Coupled Plasma 0.007(0.001) 3 Cyanide 0.2 Distillation, Spectrophotometric 0.02 3 Distillation, Automated Spectrophotometric 0.005 3 Distillation, Selective Electrode 0.05 4 Distillation, Amenable, Spectrophotometric 0.02 Mercury 0.002 Manual Cold Vapor Technique 0.0002 Automated Cold Vapor Technique 0.0002 Nickel 0.1 Atomic Absorption; Furnace 0.001 5 Atomic Absorption; Platform 0.0006 2 Inductively Coupled Plasma 0.005 ICP-Mass Spectrometry 0.0005 Nitrate 10 (as N) Manual Cadmium Reduction 0.01 Automated Hydrazine Reduction 0.01 Automated Cadmium Reduction 0.05 Ion Selective Electrode 1 Ion Chromatography 0.01 Nitrite 1 (as N) Spectrophotometric 0.01 Automated Cadmium Reduction 0.05 Manual Cadmium Reduction 0.01 Ion Chromatography 0.004 Selenium 0.05 Atomic Absorption; furnace 0.002 Atomic Absorption; gaseous hydride 0.002 Thallium 0.002 Atomic Absorption; Furnace 0.001 5 Atomic Absorption; Platform 0.0007 ICP-Mass Spectrometry 0.0003 ___________________________________________________________________________________________ Footnotes 1 MFL = million fibers per liter > 10 microns. 2 Using a 2X preconcentration step as noted in Method 200.7 Lower method detection limits (MDLs) may be achieved using a 4X preconcentration. 3 Screening method for total cyanides. 4 Measures “free” cyanides. 5 Lower MDLs are reported using stabilized temperature graphite furnace atomic absorption. 6 The value for arsenic is effective January 23, 2006. Until then the MCL is 0.05 mg/L.
- 7. The MDL reported for EPA method 200.9 (Atomic Absorption; Platform-Stabilized Temperature) was determined using a 2X concentration step during sample digestion. The MCL determined for samples analyzed using direct analyses (i.e, no sample digestion) will be higher. Using multiple depositions, EPA 200.9 is capable of obtaining MDL of 0.0001 mg/L. 8 Using selective ion monitoring, EPA Method 200.8 (ICP-MS) is capable of obtaining a MDL of 0.0001 mg/L.
- 1. Laboratories must achieve a method detection limit for lead of 0.001 mg/l according to the procedures in appendix B of part 136 of 40 CFR. This need only be accomplished if the laboratory will be processing source water composite samples under subpart (9)(a)1.(iv) of Rule 0400-45-01-.33.
- (i) Lead: 0.001 mg/l (only if source water compositing is done under Rule 0400-45-01-.09); and
(ii) Copper: 0.001 mg/l or 0.020 mg/l when atomic absorption direct aspiration is used (only if source water compositing is done under Rule 0400-45-01- .09).
- 2. The Department has the authority to allow the use of previously collected monitoring data, provided that the laboratory is currently certified by EPA or the Department to perform analyses to the specifications required in this subparagraph and if the data were collected and analyzed in accordance with the requirements of this rule and Rule 0400-45-01-.33.
- 3. All lead levels measured between the PQL and the MDL must be either reported as measured or they can be reported as one-half the PQL (0.0025 mg/l). All levels below the lead MDL must be reported as zero; and
- 4. All copper levels measured between PQL and the MDL must be either reported as measured or they can be reported as one-half the PQL (0.025 mg/l). All levels below the copper MDL must be reported as zero.
(e) Laboratories must analyze PE samples within the following acceptance criteria: Contaminant Acceptance limit Antimony ±30 at ≥0.006 mg/l Arsenic ±30 at ≥0.003 mg/l Asbestos 2 standard deviations based on study statistics Barium ±15% at ≥0.15 mg/l Beryllium ±15% at ≥0.001 mg/1 Cadmium ±20% at ≥0.002 mg/l Chromium ±15% at ≥0.01 mg/l Copper ±10% at ≥ 0.050 mg/l1 Cyanide ±25% at ≥0.1 mg/l Fluoride ±10% at ≥1 to 10 mg/l Lead ± 30% ≥0.005 mg/l2 Mercury ±30% at ≥0.0005 mg/l Nickel ±15% at ≥0.01 mg/l Nitrate ±10% at ≥0.4 mg/l Nitrite ±15% at ≥0.4 mg/l Selenium ±20% at ≥0.01 mg/l Thallium ±30% at ≥0.002 mg/l
- 1. The practical quantitation level (PQL) for copper is 0.050 mg/l.
- 2. The PQL for lead is 0.005 mg/l.
(f) Sample collection for antimony, arsenic, asbestos, barium, beryllium, cadmium, chromium, cyanide, fluoride, mercury, nickel, nitrate, nitrite, selenium, and thallium under this Rule shall be conducted using the sample preservation, container, and maximum holding time procedures specified in the table below: Table 0400-45-01-.14(10)(f) Contaminant Preservative1 Container2 Time3 Antimony HNO3 P or G 6 months Arsenic Conc HNO3 to pH <2 P or G 6 months Asbestos 4°C P or G 48 hours4 Barium HNO3 P or G 6 months Beryllium HNO3 P or G 6 months Cadmium HNO3 P or G 6 months Chromium HNO3 P or G 6 months Cyanide 4°C, NaOH P or G 14 days Fluoride None P or G 1 month Mercury HNO3 P or G 28 days Nickel HNO3 P or G 6 months Nitrate 4°C P or G 48 hours5 Nitrate-Nitrite 6 H2SO4 P or G 28 days Nitrite 4°C P or G 48 hours Selenium HNO3 P or G 6 months Thallium HNO3 P or G 6 months Footnotes
- 1. For cyanide determinations samples must be adjusted with sodium hydroxide to pH 12 at the time off collection. When chilling is indicated the sample must be shipped and stored at 4°C or less. Acidification of nitrate or metals samples may be with a concentrated acid or a dilute (50% by volume) solution of the applicable concentrated acid. Acidification of samples for metals analysis is encouraged and allowed at the laboratory rather than at the time of sampling provided the shipping time and other instructions in Section 8.3 of EPA Methods 200.7 or 200.8 or 200.9 are followed.
- 2. P=plastic, hard or soft; G=glass, hard or soft.
- 3. In all cases samples should be analyzed as soon after collection as possible. Follow additional (if any) information on preservation, containers or holding times that is specified in method.
- 4. Instructions for containers, preservation procedures and holding times as specified in Method 100.2 must be adhered to for all compliance analyses including those conducted with Method 100.1.
- 5. If the sample is chlorinated, the holding time for an unacidified sample kept at 4°C is extended to 14 days.
- 6. Nitrate-Nitrite refers to a measurement of total nitrate.
(g) Certified Laboratories performing analyses for Public Water Systems as required by this Chapter must utilize an approved method for Organic Contaminants listed in Table 0400-45-01-.14(10)(g) or the altenative testing methods in Table A in this subparagraph: Table 0400-45-01-.14(10)(g) Contaminant EPA method1 Standard ASTM Other Methods
- 1. Benzene 502.2, 524.2
- 2. Carbon tetrachloride 502.2, 524.2, 551.1
- 3. Chlorobenzene 502.2, 524.2
- 4. 1,2-Dichlorobenzene 502.2, 524.2
- 5. 1,4-Dichlorobenzene 502.2, 524.2
- 6. 1,2-Dichloroethane 502.2, 524.2
- 7. cis-Dichloroethylene 502.2, 524.2
- 8. trans-Dichloroethylene 502.2, 524.2
- 9. Dichloromethane 502.2, 524.2
- 10. 1,2-Dichloropropane 502.2, 524.2
- 11. Ethylbenzene 502.2, 524.2
- 12. Styrene 502.2, 524.2
- 13. Tetrachloroethylene 502.2, 524.2, 551.1
- 14. 1,1,1-Trichloroethane 502.2, 524.2, 551.1
- 15. Trichloroethylene 502.2, 524.2, 551.1
- 16. Toluene 502.2, 524.2
- 17. 1,2,4-Trichlorobenzene 502.2, 524.2
- 18. 1,1-Dichloroethylene 502.2, 524.2
- 19. 1,1,2-Trichloroethane 502.2, 524.2, 551.1
- 20. Xylenes (total) 502.2, 524.2
- 21. Vinyl chloride 502.2, 524.2
- 22. 2,3,7,8-TCDD (dioxin) 1613
- 23. 2,4-D4 (as acid, salts and esters) 515.2, 555, 515.1, 515.3, 515.4 D5317–93,98 (Reapproved 2003)
- 24. 2,4,5-TP 4 (Silvex) 515.2, 555, 515.1, 515.3, 515.4 D5317–93,98 (Reapproved 2003)
- 25. Alachlor2 507, 525.2, 508.1, 505, 551.1
- 26. Atrazine2 507, 525.2, 508.1, 505, 551.1 Syngenta5 AG– 625
- 27. Benzo(a)pyrene 525.2, 550, 550.1
- 28. Carbofuran 531.1, 531.2 6610
- 29. Chlordane 508, 525.2, 508.1, 505
- 30. Dalapon 552.1, 515.1, 552.2, 515.3, 515.4, 552.3
- 31. Di(2-ethylhexyl)adipate 506, 525.2
- 32. Di(2-ethylhexyl)phthalate 506, 525.2
- 33. Dibromochloropropane (DBCP) 504.1, 551.1
- 34. Dinoseb4 515.2, 555, 515.1, 515.3, 515.4
- 35. Diquat 549.2
- 36. Endothall 548.1
- 37. Endrin 508, 525.2, 508.1, 505, 551.1
- 38. Ethylene dibromide (EDB) 504.1, 551.1
- 39. Glyphosate 547 6651
- 40. Heptachlor 508, 525.2, 508.1, 505, 551.1
- 41. Heptachlor Epoxide 508, 525.2, 508.1, 505, 551.1
- 42. Hexachlorobenzene 508, 525.2, 508.1, 505, 551.1
- 43. Hexachlorocyclopentadiene 508, 525.2, 508.1, 505, 551.1
- 44. Lindane 508, 525.2, 508.1, 505, 551.1
- 45. Methoxychlor 508, 525.2, 508.1, 505, 551.1
- 46. Oxamyl 531.1, 531.2 6610
- 47. PCBs3 (as decachlorobiphenyl) 508A
- 48. PCBs3 (as Aroclors) 508.1, 508, 525.2, 505
- 49. Pentachlorophenol 515.2, 525.2, 555, 515.1, 515.3, D5317–93,98 515.4 (Reapproved 2003)
- 50. Picloram4 515.2, 555, 515.1, 515.3, 515.4 D5317–93,98 (Reapproved 2003)
- 51. Simazine2 507, 525.2, 508.1, 505, 551.1
- 52. Toxaphene 508, 508.1, 525.2, 505 Footnotes
- 1. Previously approved EPA methods remain available for compliance monitoring until June 1, 2001. EPA methods 502.2 Rev. 2.0, 505 Rev. 2.0, 507 Rev. 2.0, 508 Rev. 3.0, 531.1 Rev. 3.0 are in “Methods for the Determination of Organic Compounds in Drinking Water”, December 1988, revised July 1991; methods 506 and 551 are in “Methods for the Determination of Organic Compounds in Drinking Water--Supplement I”, July 1990; methods 515.2 Rev. 1.0 and 524.2 Rev. 4.0 are in ``Methods for the Determination of Organic Compounds in Drinking Water--Supplement II,'' August 1992; and methods 504.1 Rev. 1.0, 508.1 Rev. 1.0, 525.2 Rev.1.0 are available from US EPA NERL, Cincinnati, OH 45268
- 2. Substitution of the detector specified in Method 505, 507, 508, or 508.1 for the purpose of achieving lower detection limits is allowed as follows: Either an electron capture or nitrogen phosphorus detector may be used provided all regulatory requirements and quality control criteria are met.
- 3. PCBs are qualitatively identified as Aroclors and measured for compliance purposes as decachlorobiphenyl. Users of Method 505 may have more difficulty in achieving the required detection limits than users of Methods 508.1, 525.2 or 508.
- 4. 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 Method D 5317–93, 98 (Reapproved 2003).
- 5. 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 0.0015mg/L or 1.5 μg/L) must be 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. Table A The Organic Contaminants from Table 0400-45-01-.14(10)(g) that have Alternative Testing Methods Contaminant Methodology EPA SM 21st Edition1 SM Online2 Method Benzene Purge & Trap/Gas 524.33 Chromatography/Mass Spectrometry (PT/GC/MS) Carbon tetrachloride PT/GC/MS 524.3 Chlorobenzene PT/GC/MS 524.3 1,2-Dichlorobenzene PT/GC/MS 524.3 1,4-Dichlorobenzene PT/GC/MS 524.3 1,2-Dichloroethane PT/GC/MS 524.3 cis-Dichloroethylene PT/GC/MS 524.3 trans-Dichloroethylene PT/GC/MS 524.3 Dichloromethane PT/GC/MS 524.3 1,2-Dichloropropane PT/GC/MS 524.3 Ethylbenzene PT/GC/MS 524.3 Styrene PT/GC/MS 524.3 Tetrachloroethylene PT/GC/MS 524.3 1,1,1-Trichloroethane PT/GC/MS 524.3 Trichloroethylene PT/GC/MS 524.3 Toluene PT/GC/MS 524.3 1,2,4- PT/GC/MS 524.3 Trichlorobenzene 1,1-Dichloroethylene PT/GC/MS 524.3 1,1,2-Trichloroethane PT/GC/MS 524.3 Xylenes (total) PT/GC/MS 524.3 Vinyl chloride PT/GC/MS 524.3 Carbofuran High-performance liquid 6610 B 6610 B-04 chromatography (HPLC) with post-column derivatization and fluorescence detection Dalapon Ion Chromatography 5574 6640 B 6640 B-01 Electrospray Ionization Tandem Mass Spectrometry (IC-ESI- MS/MS) Dibromochloropropane PT/GC/MS 524.3 (DBCP) Ethyl dibromide (EDB) PT/GC/MS 524.3 Oxamyl High-performance liquid 6610 B 6610 B-04 chromatography (HPLC) with post-column derivatization and fluorescence detection Total Trihalomethanes PT/GC/MS 524.3 Footnotes 1 Standard Methods for the Examination of Water and Wastewater, 21st edition (2005). Available from American Public Health Association, 800 I Street NW, Washington, DC 20001-3710
- 2. Standard Methods Online are available at http://www.standardmethods.org. The year in which each method was approved by the Standard Methods Committee is designated by the last two digits in the method number. The methods listed are the only online versions that may be used.
- 3. EPA Method 524.3, Version 1.0. “Measurement of Purgeable Organic Compounds in Water by Capillary Column Gas Chromatography/Mass Spectrometry,” June 2009. EPA 815-B-09-009. Available at http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html.
- 4. EPA Method 557. “Determination of Haloacetic Acids, Bromate, and Dalapon in Drinking Water by Ion Chromatography Electrospray Ionization Tandem Mass Spectrometry (IC-ESI-MS/MS),” September 2009, EPA 815-B-09-012. Available at http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html.
- 1. To obtain certification for contaminants 1 through 20 listed in Table 0400-45-01- .14(10)(g) laboratories must:
- (i) Successfully analyze 80% of the contaminants included in the PE sample. To successfully analyze a contaminant a laboratory must achieve quantitative results which are: within ±40% of the actual amount in the PE sample when the actual amount is less than 0.010 mg/l, within ±20% of the actual amount in the PE sample when the actual amount is greater than or equal to 0.010 mg/l.
(ii) Achieve a method detection limit of 0.0005 mg/l, according to the procedures in 40 CFR part 136 Appendix B.
- 2. To obtain certification for vinyl chloride a laboratory must:
- (i) Achieve quantitative results on PE samples which are within ±40% of the actual amount of vinyl chloride in the PE sample.
- (ii) Achieve a method detection limit of 0.0005 mg/l, according to the procedures in 40 CFR part 136 Appendix B.
(iii) Achieve certification for contaminants 1 through 20 listed in Table 0400-45- 01-.14(10)(g).
- 3. To obtain certification for contaminants 22 through 52 listed in Table 0400-45-01- .14(10)(g) certified laboratories must achieve quantitative results on PE samples within the following acceptance limits: Table 0400-45-01-.14(10)(g)3. _________________________________________________________________________________________ Contaminant Acceptance limits (percent) _________________________________________________________________________________________ DBCP + 40 EDB + 40 Alachlor + 45 Atrazine + 45 Benzo[a]pyrene 2 standard deviations Carbofuran + 45 Chlordane + 45 Dalapon 2 standard deviations Di(2-ethylhexyl)adipate 2 standard deviations Di(2-ethylhexyl)phthalate 2 standard deviations Dinoseb 2 standard deviations Diquat 2 standard deviations Endothall 2 standard deviations Endrin + 30 Glyphosate 2 standard deviations Heptachlor + 45 Heptachlor Epoxide + 45 Hexachlorobenzene 2 standard deviations. Hexachlorocyclopentadiene 2 standard deviations Lindane + 45 Methoxychlor + 45 Oxamyl 2 standard deviations PCBs (as Decachlorobiphenyl) 0 - 200 Picloram 2 standard deviations Simazine 2 standard deviations Toxaphene + 45 Aldicarb 2 standard deviations Aldicarb sulfoxide 2 standard deviations Aldicarb sulfone 2 standard deviations. Pentachlorophenol + 50 2,3,7,8-TCDD (Dioxin) 2 standard deviations 2,4-D + 50 2,4,5-TP (Silvex) + 50
- 4. Analysis for PCBs shall be conducted as follows:
- (i) Each system which monitors for PCBs shall analyze each sample using either Methods 508.1, 525.2, 508, or 505. Users of Method 505 may have more difficulty in achieving the required Aroclor detection limits than users of Methods 508.1, 525.2 or 508.
- (ii) If PCBs (as one of seven Aroclors) are detected (as designated by Table 0400-45-01-.14(10)(g)4.(ii)) in any sample analyzed using Methods 505 or 508, the system shall reanalyze the sample using Method 508A to quantitate PCBs (as decachlorobiphenyl). Table 0400-45-01-.14(10)(g)4.(ii) Aroclor Detection Limit (mg/l) 1016 0.00008 1221 0.02 1232 0.0005 1242 0.0003 1248 0.0001 1254 0.0001 1260 0.0002
- (iii) Compliance with the PCB MCL shall be determined based upon the quantitative results of analyses using Method 508A.
(h) Analytical methods used to determine compliance with paragraph (5) of Rule 0400-45-01- .06 shall be in accordance with Table 0400-45-01-.14(10)(h). Table 0400-45-01-.14(10)(h) Reference (method or page number) Contaminant Methodology EPA1 EPA2 EPA3 EPA4 SM5 ASTM6 USGS7 DOE8 Other Naturally occurring: Gross alpha11 and beta. Evaporation 900.0 p 1 00-01 p 1 302, 7110 B R-1120-76 Gross alpha11 Co-precipitation 00-02 7110 C Radium 226 Radon emanation 903.1 p 16 Ra- p 19 7500-Ra C D 3454-91 R-1141-76 Ra-05 N.Y.9 04 Radio chemical 903.0 p 13 Ra- 304, 305, 7500-Ra B D 2460-91 R-1140-76 GA14 03 Radium 228 Radio chemical 904.0 p 24 Ra- p 19 304, 7500-Ra D R-1142-76 N. Y.9 05 N. J.10 Uranium12 Radio chemical 908.0 7500-U B Fluorometric 908.1 7500-U C (17th Ed.) D 2907-91 R-1180-76 R-1181- U-04 76 ICP-MS 200.81 3125 D 5673-03 3 Alpha spectrometry 00-07 P 33 7500-U C (18th or 19th D 3972-90 R-1182-76 U-02 Ed.) Laser Phosophorimetry D 5174-91 Man-made Radio chemical 901.0 p 4 7500-Cs B D 2459-72 R-1111-76 Radioactive cesium. Gamma ray 901.1 p 92 7120 (19th Ed.) D 3649-91 R-1110-76 4.5.2.3 spectrometry. Radioactive iodine Radio chemistry 902.0 p 6 7500-I B D 3649-91 p 9 7500-I C 7500-I D Gamma ray 901.1 p 92 7120 (19th Ed.) D 4785-88 4.5.2.3 spectrometry. Radioactive Strontium 89, Radio chemical 905.0 p 29 Sr-04 p 65 303, 7500-Sr B R-1160-76 Sr-01
- 90. Sr-02 Tritium Liquid scintillation 906.0 p 34 H-02 p 87 306, 7500-3H B D 4107-91 R-1171-76 Gamma emitters Gamma ray 901.1 p 92 7120 (19th Ed.) D 3649-91 R-1110-76 4.5.2.3 Spectrometry 902.0 7500-Cs B D 4785-88 901.0 7500-I B The procedures shall be done in accordance with the documents listed below. The incorporation by reference of documents 1 through 10 was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies of the documents may be obtained from the sources listed below. Information reguarding obtaining these documents can be obtained from the Safe Drinking Water Hotline at 800-426-4691. Documents may be inspected at EPA’s Drinking Water Docket, 401 M Street, SW., Washington, DC 20460 (Telephone: 202-260-3027); or at the Office of Federal Register, 800 North Capitol Street, NW., Suite 700, Washington, DC. Footnotes
- 1. “Prescribed Procedures for Measurement of Radioactivity in Drinking Water”, EPA 600/4-80-032, August 1980. Available at U.S. Department of Commerce, National Technical Information Service (NTIS), 5285 Port Royal Road, Springfield, VA 22161 (Telephone 800-553-6847), PB 80-224744.
- 2. “Interim Radiochemical Methodology for Drinking Water”, EPA 600/4-75-008(revised), March 1976. Available at NTIS, ibid. PB 253258.
- 3. “Radiochemistry Procedures Manual”, EPA 520/5-84-006, December 1987. Available at NTIS, ibid. PB 84-215581.
- 4. “Radiochemical Analytical Procedures for Analysis of Environmental Samples”, March 1979. Available at NTIS, ibid. EMSL LV 053917.
- 5. “Standard Methods for the Examination of Water and Wastewater”, 13th, 17th, 18th, 19th Editions, 1971, 1989, 1992, 1995. Available at American Public Health Association, 1015 Fifteenth Street N. W., Washington, D.C. 20005. All methods are in the 17th, 18th, and 19th editions except 7500-U C Fluorometric Uranium was discontinued after the 17th Edition, 7120 Gamma Emitters is only in the 19th Edition, and 302, 303, 304, 305 and 306 are only in the 13th Edition.
- 6. Annual Book of ASTM Standards, Vol. 11.02, 1994. Available at American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428.
- 7. “Methods for Determination of Radioactive Substances in Water and Fluvial Sediments”, Chapter A5 in Book 5 of Techniques of Water-Resources Investigations of the United States Geological Survey, 1977. Available at U. S. Geological Survey (USGS) Information Services, Box 25286, Federal Center, Denver, CO 80225-0425.
- 8. “EML Procedures Manual”, 27th Edition, Volume 1, 1990. Available at the Environmental Measurements Laboratory, U.S. Department of Energy (DOE), 376 Hudson Street, New York, NY 10014-3621.
- 9. “Determination of Ra-226 and Ra-228 (Ra-02)”, January 1980, Revised June 1982. Available at Radiological Sciences Institute Center for Laboratories and Research, New York State Department of Health, Empire State Plaza, Albany, NY 12201.
- 10. “Determination of Radium 228 in Drinking Water”, August 1980. Available at State of New Jersey, Department of Environmental Protection, Division of Environmental Quality, Bureau of Radiation and Inorganic Analysis Services, 9 Ewing Street, Trenton, NJ 08625.
- 11. Natural uranium and thorium-230 are approved as gross alpha calibration standards for gross alpha with co-precipitation and evaporation methods; americium-241 is approved with co-precipitation methods.
- 12. If uranium (U) is determined by mass, a 0.67 pCi/ug of uranium conversion factor must be used. This conservative factor is based on the 1:1 activity ratio of U-234 to U-238 that is characteristic of naturally occurring uranium.
- 13. “Determination of Trace Elements in Waters and Wastes by Inductively Coupled Plasma-Mass Spectrometry,” Revision 5.4, which is published in “Methods for the Determination of Metals in Environmental Samples—Supplement I,” EPA 600–R–94–111, May 1994. Available at NTIS, PB 95–125472.
- 14. ‘‘The Determination of Radium-226 and Radium-228 in Drinking Water by Gamma-ray Spectrometry Using HPGE or Ge(Li) Detectors,’’ Revision 1.2, December 2004. Available from the Environmental Resources Center, Georgia Institute of Technology, 620 Cherry Street, Atlanta, GA 30332–0335, USA, Telephone: 404-894-3776. This method may be used to analyze for radium-226 and radium-228 in samples collected after January 1, 2005 to satisfy the radium-226 and radium-228 monitoring requirements specified at 40 CFR 141.26.
- 1. When the identification and measurement of radionuclides other than those listed in Table 0400-45-01-.11(1), the following references are to be used, except in cases where alternative methods have been approved by the Department.
- (i) Procedures for Radiochemical Analysis of Nuclear Reactor Aqueous Solutions, H. L. Krieger and S. Gold, EPA-RA-73-014, USEPA, Cincinnati, Ohio, May, 1973.
(ii) HASL Procedure Manual, Edited by John H. Harley, HASL 300, ERDA Health and Safety Laboratory, New York, NY., 1973.
- 2. The inorganic contaminants from Table 0400-45-01-.14(10)(h) that have alternative testing methods are given in the following table: Table 0400-45-01-.14(10)(h)2 Contaminant Methodology SM 21st Edition1 ASTM2 Naturally Occurring Gross alpha and beta Evaporation 7110 B Gross alpha Coprecipitation 7110 C Radium 226 Radon emanation 7500-Ra C D3454-05 Radiochemical 7500-Ra B D2460-07 Radium 228 Radiochemical 7500-Ra D Uranium Radiochemical 7500-U B ICP-MS D5673-05 Alpha spectrometry 7500-U C Laser Phosphorimetry D5174-07 Man-Made: Radioactive Cesium Radiochemical 7500-Cs B Gamma Ray 7120 D3649-06 Spectrometry Radioactive Iodine Radiochemical 7500-I B D3649-06 Gamma Ray 7120 D4785-08 Spectrometry Radioactive Strontium Radiochemical 7500-Sr B 89, 90 Tritium Liquid Scintillation 7500-3H B D4107-08 Gamma Emitters Gamma Ray 7120 D3649-06 Spectrometry 7500-Cs B D4785-08 7500-I B Footnotes 1 Standard Methods for the Examination of Water and Wastewater, 21st edition (2005). Available from American Public Health Association, 800 I Street NW, Washington, DC 20001-3710 2 Available from ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or http://astm.org. The methods listed are the only alternative versions that may be used.
(i) Public Water Systems required to monitor disinfectant residuals by this Chapter must utilize one of the methods in the following table. In addition Water Systems may use of the ITS free chlorine test strip for the determination of free chlorine. Use of the test strips is described in Method D99–003, ‘‘Free Chlorine Species (HOCl- and OCl-) by Test Strip,’’ Revision 3.0, November 21, 2003, available from Industrial Test Systems, Inc., 1875 Langston St., Rock Hill, SC 29730. Free and total chlorine residuals may be measured continuously by adapting a specified chlorine residual method for use with a continuous monitoring instrument provided the chemistry, accuracy, and precision remain the same. Instruments used for continuous monitoring must be calibrated with a grab sample measurement at least every five days, or with a protocol approved by the Department. Table 0400-45-01-.14(10)(i) Methodology SM (19th or SM Other Residual measured1 20th ed) Online2 O3 Free Cl2 Combined Total Cl2 ClO Cl2 2 Amperometric 4500-Cl D 4500-Cl- D 1253-033 X X X Titration D-00 Low Level 4500-Cl E 4500-Cl-E- X Amperometric 00 Titration DPD Ferrous 4500-Cl F 4500-Cl-F- X X X Titrimetric 00 DPD Colorimetric 4500-Cl G 4500-Cl- X X X G-00 Syringaldazine 4500-Cl H 4500-Cl- X (FACTS) H-00 Iodometric 4500-Cl I 4500-Cl-I- X Electrode 00 DPD 4500-ClO2 X D Amperometric 4500-ClO2 4500 ClO2 X Method II E E-00 Spectrophotometr 327.0 Rev X ic 1.14 Indigo Method 4500-O3 B 4500-O3 X B-97 Footnotes
- 1. X indicates method is approved for measuring specified disinfectant residual. Free chlorine or total chlorine may be measured for demonstrating compliance with the chlorine MRDL and combined chlorine, or total chlorine may be measured for demonstrating compliance with the chloramine MRDL.
- 2. The Standard Methods Online version that is approved is indicated by the last two digits in the method number which is the year of approval by the Standard Method Committee. Standard Methods Online are available at http://www.standardmethods.org.
- 3. Annual Book of ASTM Standards, Vol. 11.01, 2004 ; ASTM International; any year containing the cited version of the method may be used. Copies of this method may be obtained from ASTM International, 100 Barr Harbor Drive, P.O. Box C700 West Conshohocken, PA 19428–2959.
- 4. EPA Method 327.0, Revision 1.1, ‘‘Determination of Chlorine Dioxide and Chlorite Ion in Drinking Water Using Lissamine Green B and Horseradish Peroxidase with Detection by Visible Spectrophotometry,’’ USEPA, May 2005, EPA 815–R–05–008. Available online at http://www.epa.gov/safewater/methods/sourcalt.html.
- 1. Alternative testing methods for the disinfectant residuals given in Table 0400-45- 01-.14(10)(i) are given in the following table: Table 0400-45-01-.14(10)(i)1. Residual Methodology SM 21st ASTM2 Other Edition1 Free Chlorine Amperometric Titration 4500-Cl D D 1253-08 DPD Ferrous Titrimetric 4500-Cl F DPD Colorimetric 4500-Cl G Syringaldazine 4500-Cl H (FACTS) On-line Chlorine EPA 334.03 Analyzer Amperometric Sensor Chlorosense4 Total Chlorine Amperometric Titration 4500-Cl D D 1253-08 Amperometric Titration 4500-Cl E (Low level measurement) DPD Ferrous Titrimetric 4500-Cl F DPD Colorimetric 4500-Cl G Iodometric Electrode 4500-Cl I On-line Chlorine EPA 334.03 Analyzer Amperometric Sensor Chlorosense4 Chlorine Dioxide Amperometric Titration 4500-ClO2 C Amperometric Titration 4500-ClO2 E Ozone Indigo Method 4500-O3 B Footnotes 1 Standard Methods for the Examination of Water and Wastewater, 21st edition (2005). Available from American Public Health Association, 800 I Street NW, Washington, DC 20001-3710 2 Available from ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or http://astm.org. The methods listed are the only alternative versions that may be used. 3 EPA Method 334.0. “Determination of Residual Chlorine in Drinking Water Using an On-line Chlorine Analyzer,” September
- 2009. EPA 815-B-09-013. Available at http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html. 4 Chlorosense. “Measurement of Free and Total Chlorine in Drinking Water by Palintest Chlorosense,” August 2009. Available at http://www.nemi.gov or from Palintest Ltd, 21 Kenton Lands Road, PO Box 18395, Erlanger, KY 41018.
(j) Analysis conducted to determine compliance with Rule 0400-45-01-.12 shall be made in accordance with the methods described in the following table: Table 0400-45-01-.14(10)(j) SM4 18th and 19th Contaminant EPA ASTM3 ed. SM4 20th ed. SM7 Online Other
- 1. Aluminum 200.72 3120 B 3120 B 3120 B-99 200.82 3113 B 3113 B-99 200.92 3111 D 3111 D-99
- 2. Chloride 300.01 D4327–97, 03 4110 B 4110 B 4110 B-00 D512–89 300.16 Reapproved 1999) B 4500–Cl– D 4500–Cl– D 4500–Cl– D-97 4500–Cl– B 4500–Cl– B 4500–Cl– B-97 D6508, Rev. 28
- 3. Color 2120 B 2120 B 2120 B-01
- 4. Foaming Agents 5540 C 5540 C 5540 C-00
- 5. Iron 200.72 3120 B 3120 B 3120 B-99 200.92 3111 B 3111 B-99 3113 B 3113 B-99
- 6. Manganese 200.72 3120 B 3120 B 3120 B-99 200.82 3111 B 3111 B-99 200.92 3113 B 3113 B-99
- 7. Odor 2150 B 2150 B 2150 B-97
- 8. Silver 200.72 3120 B 3120 B 3120 B-99 I-3720-855 200.82 3111 B 3111 B-99 200.92 3113 B 3113 B-99
- 9. Sulfate 300.01 D4327–97, 03 4110 B 4110 B 4110 B-00 300.16 375.21 D516–90, 02 4500–SO4 2–F 4500–SO4 2–F 4500–SO4 2–C,D 4500–SO4 2–C,D 4500–SO4 2–E 4500–SO4 2–E D6508, Rev. 28
- 10. Total Dissolved Solids 200.72 2540 C 2540 C 2540 C-97
- 11. Zinc 200.82 3120 B 3120 B 3120 B-99 3111 B 3111 B-99 Footnotes
- 1. ‘‘Methods for the Determination of Inorganic Substances in Environmental Samples,’’ EPA/600/R–93–100, August 1993. Available at NTIS, PB94–120821.
- 2. ‘‘Methods for the Determination of Metals in Environmental Samples—Supplement I,’’ EPA/600/R–94–111, May 1994. Available at NTIS, PB 95–125472.
- 3. Annual Book of ASTM Standards, 1994, 1996, 1999, or 2004, Vols. 11.01 and 11.02, ASTM International; any year containing the cited version of the method may be used. Copies may be obtained from the ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428.
- 4. Standard Methods for the Examination of Water and Wastewater, 18th edition (1992), 19th edition (1995), or 20th edition (1998). American Public Health Association, 1015 Fifteenth Street, NW., Washington, DC 20005. The cited methods published in any of these three editions may be used, except that the versions of 3111 B, 3111 D, and 3113 B in the 20th edition may not be used.
- 5. Method I–3720–85, Techniques of Water Resources Investigation of the U.S. Geological Survey, Book 5, Chapter A–1, 3rd ed., 1989. Available from Information Services, U.S. Geological Survey, Federal Center, Box 25286, Denver, CO 80225–0425.
- 6. ‘‘Methods for the Determination of Organic and Inorganic Compounds in Drinking Water,’’ Vol. 1, EPA 815-R–00–014, August 2000. Available at NTIS, PB2000–106981.
- 7. Standard Methods Online are available at http://www.standardmethods.org. The year in which each method was approved by the Standard Methods Committee is designated by the last two digits in the method number. The methods listed are the only online versions that may be used.
- 8. Method D6508, Rev. 2, ‘‘Test Method for Determination of Dissolved Inorganic Anions in Aqueous Matrices Using Capillary Ion Electrophoresis and Chromate Electrolyte,’’ available from Waters Corp, 34 Maple St., Milford, MA, 01757, Telephone: 508/482–2131, Fax: 508/482–3625.
- 1. The alternative methods for the analyses identified in Rule 0400-45-01-.14(10)(j) conducted to determine compliance with Rule 0400-45-01-.12 shall be made in accordance with the methods described in the following table: Table 0400-45-01-.14(10)(j)1. Contaminant Methodology EPA Method ASTM1 SM 21st SM Online3 Edition2 Aluminum Axially viewed 200.5, inductively Revision 4.24 coupled plasma- atomic emission spectrometry (AVICP-AES) Atomic 3111 D Absorption; Direct Atomic 3113 B Absorption; Furnace Inductively 3120 B Coupled Plasma Chloride Silver Nitrate D 512-04 B 4500-Cl- B Titration Ion 4110 B Chromatography Potentiometric 4500-Cl- D Titration Color Visual 2120 B Comparison Foaming Methylene Blue 5540 C Agents Active Substances (MBAS) Iron Axially viewed 200.5, inductively Revision 4.2 coupled plasma- atomic emission spectrometry (AVICP-AES) Atomic 3111 B Absorption; Direct Atomic 3113 B Absorption; Furnace Inductively 3120 B Coupled Plasma Manganese Axially viewed 200.5, inductively Revision 4.2 coupled plasma- atomic emission spectrometry (AVICP-AES) Atomic 3111 B Absorption; Direct Atomic 3113 B Absorption; Furnace Inductively 3120 B Coupled Plasma Odor Threshold Odor 2150 B Test Silver Axially viewed 200.5, inductively Revision 4.2 coupled plasma- atomic emission spectrometry (AVICP-AES) Atomic 3111 B Absorption; Direct Atomic 3113 B Absorption; Furnace Inductively 3120 B Coupled Plasma Sulfate Ion 4110 B Chromatography Gravimetric with 4500-SO4 -2 C 4500-SO4 -2 C- ignition of 97 residue Gravimetric with 4500-SO4 -2 D 4500-SO4 -2 D- drying of residue 97 Turbidimetric 4500-SO4 -2 E 4500-SO4 -2 E- method 97 Automated 4500-SO4 -2 F 4500-SO4 -2 F- methylthymol 97 blue method Total Dissolved Total Dissolved 2540 C Solids Solids Dried at 180 deg C Zinc Axially viewed 200.5, inductively Revision 4.2 coupled plasma- atomic emission spectrometry (AVICP-AES) Atomic 3111 B Absorption; Direct Aspiration Inductively 3120 B Coupled Plasma Footnotes 1 Available from ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or http://astm.org. The methods listed are the only alternative versions that may be used. 2 Standard Methods for the Examination of Water and Wastewater, 21st edition (2005). Available from American Public Health Association, 800 I Street NW, Washington, DC 20001-3710 3 Standard Methods Online are available at http://www.standardmethods.org. The year in which each method was approved by the Standard Methods Committee is designated by the last two digits in the method number. The methods listed are the only online versions that may be used. 4 EPA Method 200.5, Revision 4.2. “Determination of Trace Elements in Drinking Water by Axially Viewed Inductively Coupled Plasma-Atomic Emission Spectrometry.” 2003. EPA/600/R-06/115. (Available at http://www.epa.gov/nerlcwww/ordmeth.htm.)
(k) Disinfection byproducts
- 1. Systems required to monitor by this Chapter for disinfection byproducts must utilize the approved methods in the following table: Table 0400-45-01-.14(10)(k)1. Approved Methods for Disinfection Byproduct Compliance Monitoring Contaminant and methodology1 EPA method Standard method2 SM online9 ASTM method3 TTHM P&T/GC/ElCD & PID 502.24 P&T/GC/MS 524.2 LLE/GC/ECD 551.1 HAA5 LLE (diazomethane)/GC/ECD 6251 B5 6251 B–94 SPE (acidic methanol)/GC/ECD 552.15 LLE (acidic methanol)/GC/ECD 552.2, 552.3 Bromate Ion chromatography 300.1 D 6581–00 Ion chromatography & post 317.0 Rev 2.06, column reaction 326.06 IC/ICP–MS 321.86,7 Chlorite Amperometric titration 4500–ClO2 E8 4500–ClO2 E–00 8 Spectrophotometry 327.0 Rev 1.18 Ion chromatography 300.0, 300.1, D 6581–00 317.0 Rev 2.0, 326.0. 1 P&T = purge and trap; GC = gas chromatography; ElCD = electrolytic conductivity detector; PID = photoionization detector; MS = mass spectrometer; LLE = liquid/liquid extraction; ECD = electron capture detector; SPE = solid phase extraction; IC = ion chromatography; ICP–MS = inductively coupled plasma/mass spectrometer. 2 19th and 20th editions of Standard Methods for the Examination of Water and Wastewater, 1995 and 1998, respectively, American Public Health Association; either of these editions may be used. 3 Annual Book of ASTM Standards, 2001 or any year containing the cited version of the method, Vol 11.01. 4 If TTHMs are the only analytes being measured in the sample, then a PID is not required. 5 The samples must be extracted within 14 days of sample collection. 6 Ion chromatography & post column reaction or IC/ICP-MS must be used for monitoring of bromate for purposes of demonstrating eligibility of reduced monitoring, as prescribed in Rule 0400-45-01-.36(6)(b)3.(ii). 7 Samples must be preserved at the time of sampling with 50 mg ethylenediamine (EDA)/L of sample and must be analyzed within 28 days. 8 Amperometric titration or spectrophotometry may be used for routine daily monitoring of chlorite at the entrance to the distribution system, as prescribed in Rule 0400-45-01-.36(6)(b)2.(i)(I). Ion chromatography must be used for routine monthly monitoring of chlorite and additional monitoring of chlorite in the distribution system, as prescribed in Rules 0400-45-01- .36(6)(b)2.(i)(II) and (b)2.(ii). 9 The Standard Methods Online version that is approved is indicated by the last two digits in the method number which is the year of approval by the Standard Method Committee. Standard Methods Online are available at http://www.standardmethods.org.
(i) Alternative testing methods for the disinfection byproducts given in Table 0400-45-01-.14(10)(k)1. are given in the following table: Table 0400-45-01-.14(10)(k)1.(i) Contaminant Methodology EPA ASTM1 SM 21st Method Edition2 TTHM P&T/GC/MS 524.33 HAA5 LLE (diazomethane)/GC/ECD 6251 B Ion Chromatography Electrospray 5574 Ionization Tandem Mass Spectrometry (IC-ESI-MS/MS) Bromate Two-Dimensional Ion 302.05 Chromatography (IC)* Ion Chromatography Electrospray 5574 Ionization Tandem Mass Spectrometry (IC-ESI-MS/MS)* Chemically Supressed Ion D 6581-08 A Chromatography Electrolytically Supressed Ion D 6581-08 B Chromatography Chlorite Chemically Supressed Ion D 6581-08 A Chromatography Electrolytically Supressed Ion D 6581-08 B Chromatography Chlorite – daily Amperometric Titration 4500-ClO2 E monitoring as prescribed in Rule 0400-45-01- .36(6)(b)2.(i)(I) Footnotes 1 Available from ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or http://astm.org. The methods listed are the only alternative versions that may be used. 2 Standard Methods for the Examination of Water and Wastewater, 21st edition (2005). Available from American Public Health Association, 800 I Street NW, Washington, DC 20001-3710 3 EPA Method 524.3, Version 1.0. “Measurement of Purgeable Organic Compounds in Water by Capillary Column Gas Chromatography/Mass Spectrometry,” June 2009. EPA 815-B-09-009. Available at http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html. 4 EPA Method 557. “Determination of Haloacetic Acids, Bromate, and Dalapon in Drinking Water by Ion Chromatography Electrospray Ionization Tandem Mass Spectrometry (IC-ESI-MS/MS),” September 2009. EPA 815-B-09-012. Available at http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html. 5 EPA Method 302.0. “Determination of Bromate in Drinking Water using Two-Dimensional Ion Chromatography with Supressed Conductivity Detection,” September 2009. EPA 815-B-09-014. Available at http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html. *Only IC and IC-ESI-MS/MS have an MRL <0.0010 mg/l and may be used for Bromate monitoring listed under EPA 815-B-09-014. Available at http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html.
- 2. Laboratories must achieve quantitative results on the PE sample analyses that are within the following acceptance limits: DBP Acceptance limits Comments (percent of true value) TTHM Chloroform ±20 Laboratory must meet all 4 individual THM acceptance limits in order to successfully pass a PE sample for TTHM Bromodichloromethane ±20 Dibromochloromethane ±20 Bromoform ±20 HAA5 Monochloroacetic Acid ±40 Laboratory must meet the acceptance limits for all 5 of the HAA5 compounds in order to successfully pass a PE sample for HAA5 Dichloroacetic Acid ±40 Trichloroacetic Acid ±40 Monobromoacetic Acid ±40 Dibromoacetic Acid ±40 Chlorite ±30 Bromate ±30
- 3. Laboratories must report quantitative data for concentrations at least as low as the ones listed in the following table for all DBP samples analyzed for compliance with Rules 0400-45-01-.06, 0400-45-01-.36, 0400-45-01-.37, and 0400-45-01- .38: DBP Minimum reporting Comments level (mg/L)1 TTHM2 Chloroform 0.0010 Bromodichloromethane 0.0010 Dibromochloromethane 0.0010 Bromoform 0.0010 HAA52 Monochloroacetic Acid 0.0020 Dichloroacetic Acid 0.0010 Trichloroacetic Acid 0.0010 Monobromoacetic Acid 0.0010 Dibromoacetic Acid 0.0010 Chlorite 0.020 Applicable to monitoring as prescribed in Rules 0400- 45-01-.36(6)(b)2(i)(II) and (b)2(ii). Bromate 0.0050 or 0.00010 Laboratories that use EPA Methods 317.0 Revision 2.0, 326.0 or 321.8 must meet a 0.0010 mg/L MRL for bromate. The alternative methods for reduced monitoring under Rule 0400-45-01-.36(6)(b)3.(ii)(II) meeting an MRL of < 0.0010 mg/L are EPA Method 302.0 and 557. 1 The calibration curve must encompass the regulatory minimum reporting level (MRL) concentration. Data may be reported for concentrations lower than the regulatory MRL as long as the precision and accuracy criteria are met by analyzing an MRL check standard at the lowest reporting limit chosen by the laboratory. The laboratory must verify the accuracy of the calibration curve at the MRL concentration by analyzing an MRL check standard with a concentration less than or equal to 110% of the MRL with each batch of samples. The measured concentration for the MRL check standard must be ±50% of the expected value, if any field sample in the batch has a concentration less than 5 times the regulatory MRL. Method requirements to analyze higher concentration check standards and meet tighter acceptance criteria for them must be met in addition to the MRL check standard requirement. 2 When adding the individual trihalomethane or haloacetic acid concentrations to calculate the TTHM or HAA5 concentrations, respectively, a zero is used for any analytical result that is less than the MRL concentration for that DBP, unless otherwise specified by the Department.
- 4. Additional analytical methods. Systems required to analyze parameters not included in subparagraph (i) and part (k)1. of this paragraph must use the following methods. A party approved by the EPA or the Department must measure these parameters.
- (i) Alkalinity. All methods allowed in subparagraph (c) of this paragraph for measuring alkalinity.
- (ii) Bromide. EPA Methods 300.0, 300.1, 317.0 Revision 2.0, 326.0, or ASTM D 6581–00.
- (iii) Total Organic Carbon (TOC). Standard Method 5310 B or 5310 B–00 (High-Temperature Combustion Standard Method) or Standard Method 5310 C or 5310 C–00 (Persulfate-Ultraviolet or Heated-Persulfate Oxidation Method) or Standard Method 5310 D or 5310 D–00 (Wet- Oxidation Method) or EPA Method 415.3 Revision 1.1. Inorganic carbon must be removed from the samples prior to analysis. TOC samples may not be filtered prior to analysis. TOC samples must be acidified at the time of sample collection to achieve pH less than or equal to 2 with minimal addition of the acid specified in the method or by the instrument manufacturer. Acidified TOC samples must be analyzed within 28 days. The alternative testing methods for TOC are High Temperature Combustion, Standard Method 5310 B 21st edition (2005) or EPA Method 415.3, Revision 1.2; Persulfate-Ultraviolet or Heated Persulfate Oxidation, Standard Method 5310 C 21st edition (2005) or EPA Method 415.3, Revision 1.2; or Wet Oxidation, Standard Method 5310 D 21st edition
(2005) or EPA Method 415.3, Revision 1.2.
(iv) Specific Ultraviolet Absorbance (SUVA). SUVA is equal to the UV absorption at 254 nm (UV254) (measured in m-1 divided by the dissolved organic carbon (DOC) concentration) (measured as mg/L). In order to determine SUVA, it is necessary to separately measure UV254 and DOC. When determining SUVA, systems must use the methods stipulated in item
- (I) of this subpart to measure DOC and the method stipulated in item (II) of this subpart to measure UV254. SUVA must be determined on water prior to the addition of disinfectants/oxidants by the system. DOC and UV254 samples used to determine a SUVA value must be taken at the same time and at the same location. The alternative testing method for SUVA is Calculation using DOC and UV254 data, EPA Method 415.3, Revision 1.2.
- (I) Dissolved Organic Carbon (DOC). Standard Method 5310 B or 5310 B–00 (High-Temperature Combustion Method) or Standard Method 5310 C or 5310 C–00 (Persulfate-Ultraviolet or Heated-Persulfate Oxidation Method) or Standard Method 5310 D or 5310 D–00 (Wet- Oxidation Method) or EPA Method 415.3 Revision 1.1. DOC samples must be filtered through the 0.45 μm pore-diameter filter as soon as practical after sampling, not to exceed 48 hours. After filtration, DOC samples must be acidified to achieve pH less than or equal to 2 with minimal addition of the acid specified in the method or by the instrument manufacturer. Acidified DOC samples must be analyzed within 28 days of sample collection. Inorganic carbon must be removed from the samples prior to analysis. Water passed through the filter prior to filtration of the sample must serve as the filtered blank. This filtered blank must be analyzed using procedures identical to those used for analysis of the samples and must meet the following criteria: DOC < 0.5 mg/L. The alternative testing methods for DOC are High Temperature Combustion, Standard Method 5310 B 21st edition (2005) or EPA Method 415.3, Revision 1.2; Persulfate-Ultraviolet or Heated Persulfate Oxidation, Standard Method 5310 C 21st edition (2005) or EPA Method 415.3, Revision 1.2; or Wet Oxidation, Standard Method 5310 D 21st edition (2005) or EPA Method 415.3, Revision 1.2.
- (II) Ultraviolet Absorption at 254 nm (UV254). Standard Method 5910 B or 5910 B–00 (Ultraviolet Absorption Method) or EPA Method 415.3 Revision 1.1. UV absorption must be measured at 253.7 nm (may be rounded off to 254 nm). Prior to analysis, UV254 samples must be filtered through a 0.45 μm pore-diameter filter. The pH of UV254 samples may not be adjusted. Samples must be analyzed as soon as practical after sampling, not to exceed 48 hours. The alternative testing method for UV254 is Spectrophotometry, Standard Method 5910 B 21st edition (2005) or EPA Method 415.3, Revision 1.2.
- (v) pH. All methods allowed in Table 0400-45-01-.14(10)(c) for measuring pH.
- (vi) Magnesium. All methods allowed in Table 0400-45-01-.14(10)(c) for measuring magnesium.
(l) Cryptosporidium. Systems must analyze for Cryptosporidium using Method 1623: Cryptosporidium and Giardia in Water by Filtration/IMS/FA, 2005, United States Environmental Protection Agency, EPA–815-R–05–002 or Method 1622: Cryptosporidium in Water by Filtration/IMS/FA, 2005, United States Environmental Protection Agency, EPA–815–R–05–001, which are incorporated by reference. The Director of the Federal Register approves this incorporation by reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. You may obtain a copy of these methods online from http:// www.epa.gov/safewater/disinfection/lt2 or from the United States Environmental Protection Agency, Office of Ground Water and Drinking Water, 1201 Constitution Ave., NW, Washington, DC 20460 (Telephone: 800-426-4791). You may inspect a copy at the Water Docket in the EPA Docket Center, 1301 Constitution Ave., NW, Washington, DC, (Telephone: 202-566-2426) or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.htm
l.
- 1. Systems must analyze at least a 10 L sample or a packed pellet volume of at least 2 ml as generated by the methods listed in this subparagraph. Systems unable to process a 10 L sample must analyze as much sample volume as can be filtered by two filters approved by EPA for the methods listed in this subparagraph, up to a packed pellet volume of at least 2 ml.
- 2. (i) Matrix spike (MS) samples, as required by the methods in this subparagraph, must be spiked and filtered by a laboratory approved for Cryptosporidium analysis under part 4 of this subparagraph.
(ii) If the volume of the MS sample is greater than 10 L, the system may filter all but 10 L of the MS sample in the field, and ship the filtered sample and the remaining 10 L of source water to the laboratory. In this case, the laboratory must spike the remaining 10 L of water and filter it through the filter used to collect the balance of the sample in the field.
- 3. Flow cytometer-counted spiking suspensions must be used for MS samples and ongoing precision and recovery (OPR) samples.
- 4. Systems must have Cryptosporidium samples analyzed by a laboratory that is approved under EPA’s Laboratory Quality Assurance Evaluation Program for Analysis of Cryptosporidium in Water or a laboratory that has been certified for Cryptosporidium analysis by an equivalent State laboratory certification program.