When a public water system supplies water to one or more other public water systems, the State may modify the monitoring requirements imposed by this part to the extent that the interconnection of the systems justifies treating them as a single system for monitoring purposes. Any modified monitoring shall be conducted pursuant to a schedule specified by the State and concurred in by the Administrator of the U.S. Environmental Protection Agency.
Sec. Appendix A to Subpart C of Part 141--Alternative Testing Methods
Approved for Analyses Under the Safe Drinking Water Act
Only the editions stated in the following table are approved.
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.21(f)(3)--------------------------------------------------------------------------------------------------------------------------------------------------------
Organism Methodology SM 21st Edition \1\ SM 22nd Edition \28\ SM Online \3\ Other--------------------------------------------------------------------------------------------------------------------------------------------------------Total Coliforms................... Total Coliform 9221 A, B............ 9221 A, B............ 9221 A,B-06.........
Fermentation
Technique.
Total Coliform 9222 A, B, C.........
Membrane Filter
Technique.
Presence-Absence (P- 9221 D...............
A) Coliform Test.
ONPG-MUG Test........ 9223................. 9223 B............... 9223 B-04...........
Colitag TM........... ..................... ..................... .................... Modified ColitagTM \13\
Tecta EC/TC \33\..... ..................... ..................... .................... .........................--------------------------------------------------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.21(f)(5)----------------------------------------------------------------------------------------------------------------
Organism Methodology SM 22nd Edition \28\ SM Online \3\----------------------------------------------------------------------------------------------------------------Fecal Coliforms........................ Fecal Coliform Procedure.. 9221 E.................... 9221 E-06----------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.21(f)(6)--------------------------------------------------------------------------------------------------------------------------------------------------------
SM 20th SM 21st SM 22nd
Organism Methodology Edition \6\ Edition \1\ Edition \28\ SM Online \3\ Other--------------------------------------------------------------------------------------------------------------------------------------------------------E.coli....................... ONPG-MUG Test... 9223 B 9223 B 9223 B 9223 B-97, B-04
Colitag TM...... ............... ............... ............... ..................... Modified ColitagTM \13\
Tecta EC/TC \33\ ............... ............... ............... ..................... .............................--------------------------------------------------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.23(k)(1)----------------------------------------------------------------------------------------------------------------
SM 22nd
Contaminant Methodology EPA method SM 21st edition SM online ASTM \4\ Other
edition \1\ \28\ \3\----------------------------------------------------------------------------------------------------------------Alkalinity.. Titrimetric..... ................ 2320 B..... 2320 B..... .......... D1067-06
B, 11 BAntimony.... Hydride--Atomic ................ ........... ........... .......... D 3697-07.
Absorption.
Atomic ................ 3113 B..... 3113 B..... 3113 B-04,
Absorption; B-10.
Furnace.
Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).Arsenic..... Atomic ................ 3113 B..... 3113 B..... 3113 B-04, D 2972-08
Absorption; B-10. C.
Furnace.
Hydride Atomic ................ 3114 B..... 3114 B..... 3114 B-09. D 2972-08
Absorption. B.
Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).Barium...... Inductively ................ 3120 B..... 3120 B.....
Coupled Plasma.
Atomic ................ 3111 D..... 3111 D.....
Absorption;
Direct.
Atomic ................ 3113 B..... 3113 B..... 3113 B-04,
Absorption; B-10.
Furnace.
Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).Beryllium... Inductively ................ 3120 B..... 3120 B.....
Coupled Plasma.
Atomic ................ 3113 B..... 3113 B..... 3113 B-04, D 3645-08
Absorption; B-10. B.
Furnace.
Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).Cadmium..... Atomic ................ 3113 B..... 3113 B..... 3113 B-04,
Absorption; B-10.
Furnace.
Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).Calcium..... EDTA titrimetric ................ 3500-Ca B.. 3500-Ca B.. .......... D 511-09 A
Atomic ................ 3111 B..... 3111 B..... .......... D 511-09 B
Absorption;
Direct
Aspiration.
Inductively ................ 3120 B..... 3120 B
Coupled Plasma.
Axially viewed 200.5, Revision
inductively 4.2 \2\
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Ion ................ ........... ........... .......... D 6919-09
Chromatography.Chromium.... Inductively ................ 3120 B..... 3120 B.....
Coupled Plasma.
Atomic ................ 3113 B..... 3113 B..... 3113 B-04,
Absorption; B-10.
Furnace.
Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).Copper...... Atomic ................ 3113 B..... 3113 B..... 3113 B-04, D 1688-07
Absorption; B-10. C.
Furnace.
Atomic ................ 3111 B..... 3111 B..... .......... D 1688-07
Absorption; A.
Direct
Aspiration.
Inductively ................ 3120 B..... 3120 B.....
Coupled Plasma.
Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).Conductivity Conductance..... ................ 2510 B..... 2510 BCyanide..... Manual ................ ........... ........... .......... D 2036-06
Distillation A
followed by.
Spectrophotometr ................ 4500-CN- G. 4500-CN- G. .......... D 2036-06
ic, Amenable. B
Spectrophotometr ................ 4500-CN- E. 4500-CN- E. .......... D2036-06 A
ic Manual.
Selective ................ 4500-CN- F. 4500-CN- F.
Electrode.
Headspace Gas ................ ........... ........... .......... .......... ME355.01 \7\
Chromatography/
Mass
Spectrometry.Fluoride.... Ion ................ 4110 B..... 4110 B..... .......... D 4327-11.
Chromatography.
Manual ................ 4500-F- B, 4500-F- B,
Distillation; D. D.
Colorimetric
SPADNS.
Manual Electrode ................ 4500-F- C.. 4500-F- C.. .......... D 1179-04,
10 B.
Automated ................ 4500-F- E.. 4500-F- E..
Alizarin.
Arsenite-Free ................ ........... ........... .......... .......... Hach SPADNS
Colorimetric 2 Method
SPADNS. 10225 \22\Lead........ Atomic ................ 3113 B..... 3113 B..... 3113 B-04, D 3559-08
Absorption; B-10. D.
Furnace.
Axially viewed 200.5, Revision ........... ........... ..........
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).Magnesium... Atomic ................ 3111 B..... 3111 B..... .......... D 511-09 B
Absorption.
Inductively ................ 3120 B..... 3120 B
Coupled Plasma.
Complexation ................ 3500-Mg B.. 3500-Mg B.. .......... D 511-09 A
Titrimetric
Methods.
Axially viewed 200.5, Revision
inductively 4.2 \2\
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Ion ................ ........... ........... .......... D 6919-09
Chromatography.Mercury..... Manual, Cold ................ 3112 B..... 3112 B..... 3112 B-09. D 3223-12.
Vapor.Nickel...... Inductively ................ 3120 B..... 3120 B.....
Coupled Plasma.
Atomic ................ 3111 B..... 3111 B.....
Absorption;
Direct.
Atomic ................ 3113 B..... 3113 B..... 3113 B-04,
Absorption; B-10.
Furnace.
Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).Nitrate..... Ion ................ 4110 B..... 4110 B..... .......... D 4327-11.
Chromatography.
Automated ................ 4500-NO3- F 4500-NO3- F
Cadmium
Reduction.
Manual Cadmium ................ 4500-NO3- E 4500-NO3- E
Reduction.
Ion Selective ................ 4500-NO3- D 4500-NO3- D
Electrode.
Reduction/ ................ ........... ........... .......... .......... Systea Easy
Colorimetric. (1-Reagent)
\8\
Colorimetric; ................ ........... ........... .......... .......... Hach
Direct. TNTplus\TM\
835/836
Method
10206 \23\Nitrite..... Ion ................ 4110 B..... 4110 B..... .......... D 4327-11.
Chromatography.
Automated ................ 4500-NO3- F 4500-NO3- F
Cadmium
Reduction.
Manual Cadmium ................ 4500-NO3- E 4500-NO3- E
Reduction.
Spectrophotometr ................ 4500-NO2- B 4500-NO2- B
ic.
Reduction/ ................ ........... ........... .......... .......... Systea Easy
Colorimetric. (1-Reagent)
\8\Orthophospha Ion ................ 4110 B..... 4110 B..... .......... D 4327-11.
te. Chromatography.
Colorimetric, ................ 4500-P E... 4500-P E... 4500-P E-
ascorbic acid, 99.
single reagent.
Colorimetric, ................ 4500-P F... 4500-P F... 4500-P F-
Automated, 99.
Ascorbic Acid.pH.......... Electrometric... ................ 4500-H\+\ B 4500-H\+\ B .......... D 1293-12Selenium.... Hydride-Atomic ................ 3114 B..... 3114 B..... 3114 B-09. D 3859-08
Absorption. A.
Atomic ................ 3113 B..... 3113 B..... 3113 B-04, D 3859-08
Absorption; B-10. B.
Furnace.
Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).Silica...... Colorimetric.... ................ ........... ........... .......... D859-05,
10
Molybdosilicate. ................ 4500-SiO2 C 4500-SiO2
C.
Heteropoly blue. ................ 4500-SiO2 D 4500-SiO2
D.
Automated for ................ 4500-SiO2 E 4500-SiO2
Molybdate- E.
reactive Silica.
Axially viewed 200.5, Revision
inductively 4.2 \2\
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Inductively ................ 3120 B..... 3120 B
Coupled Plasma.Sodium...... Atomic ................ 3111 B..... 3111 B
Absorption;
Direct
Aspiration.
Axially viewed 200.5, Revision
inductively 4.2 \2\
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Ion ................ ........... ........... .......... D 6919-09
Chromatography.Temperature. Thermometric.... ................ 2550....... 2550....... 2550-10...----------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.24(e)(1)--------------------------------------------------------------------------------------------------------------------------------------------------------
SM 21st edition SM 22nd edition
Contaminant Methodology EPA method \1\ \28\ SM online \3\--------------------------------------------------------------------------------------------------------------------------------------------------------Benzene......................... Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.Carbon tetrachloride............ Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.Chlorobenzene................... Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.1,2-Dichlorobenzene............. Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.1,4-Dichlorobenzene............. Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.1,2-Dichloroethane.............. Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.cis-Dichloroethylene............ Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.trans-Dichloroethylene.......... Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.Dichloromethane................. Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.1,2-Dichloropropane............. Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.Ethylbenzene.................... Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.Styrene......................... Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.Tetrachloroethylene............. Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.1,1,1-Trichloroethane........... Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.Trichloroethylene............... Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.Toluene......................... Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.1,2,4-Trichlorobenzene.......... Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.1,1-Dichloroethylene............ Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.1,1,2-Trichlorethane............ Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.Vinyl chloride.................. Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.Xylenes (total)................. Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.2,4-D........................... Gas Chromatography/Electron ....................... 6640 B............ 6640 B............ 6640 B-01, B-06.
Capture Detection (GC/ECD).2,4,5-TP (Silvex)............... Gas Chromatography/Electron ....................... 6640 B............ 6640 B............ 6640 B-01, B-06.
Capture Detection (GC/ECD).Alachlor........................ Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Atrazine........................ Liquid Chromatography 536 \25\
Electrospray Ionization Tandem
Mass Spectrometry (LC/ESI-MS/MS).
Solid Phase Extraction/Gas 525.3, \24\ 523 \26\
Chromatography/Mass Spectrometry
(GC/MS).Benzo(a)pyrene.................. Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Carbofuran...................... High-performance liquid ....................... 6610 B............ 6610 B............ 6610 B-04.
chromatography (HPLC) with post-
column derivatization and
fluorescence detection.Chlordane....................... Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Dalapon......................... Ion Chromatography Electrospray 557 \14\
Ionization Tandem Mass
Spectrometry (IC-ESI-MS/MS).
Gas Chromatography/Electron ....................... 6640 B............ 6640 B............ 6640 B-01, B-06.
Capture Detection (GC/ECD).Di(2-ethylhexyl)adipate......... Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Di(2-ethylhexyl)phthalate....... Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).
Dibromochloropropane (DBCP)..... Purge & trap/Gas Chromatography/ 524.3 \9\
Mass Spectrometry.Dinoseb......................... Gas Chromatography/Electron ....................... 6640 B............ 6640 B............ 6640 B-01, B-06.
Capture Detection (GC/ECD).Endrin.......................... Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Ethyl dibromide (EDB)........... Purge & trap/Gas Chromatography/ 524.3 \9\
Mass Spectrometry.Glyphosate...................... High-Performance Liquid ....................... 6651 B............ 6651 B............ 6651 B-00, B-05.
Chromatography (HPLC) with Post-
Column Derivatization and
Fluorescence Detection.Heptachlor...................... Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Heptachlor Epoxide.............. Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Hexachlorobenzene............... Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Hexachlorocyclo-pentadiene...... Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Lindane......................... Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Methoxychlor.................... Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Oxamyl.......................... High-performance liquid ....................... 6610 B............ 6610 B............ 6610 B-04.
chromatography (HPLC) with post-
column derivatization and
fluorescence detection.PCBs (as Aroclors).............. Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Pentachlorophenol............... Gas Chromatography/Electron ....................... 6640 B............ 6640 B............ 6640 B-01, B-06.
Capture Detection (GC/ECD).
Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Picloram........................ Gas Chromatography/Electron ....................... 6640 B............ 6640 B............ 6640 B-01, B-06.
Capture Detection (GC/ECD).Simazine........................ Liquid Chromatography 536 \25\
Electrospray Ionization Tandem
Mass Spectrometry (LC/ESI-MS/MS).
Solid Phase Extraction/Gas 525.3,\24\ 523 \26\
Chromatography/Mass Spectrometry
(GC/MS).Toxaphene....................... Solid Phase Extraction/Gas 525.3 \24\
Chromatography/Mass Spectrometry
(GC/MS).Total Trihalomethanes........... Purge & trap/Gas Chromatography/ 524.3,\9\ 524.4 \29\
Mass Spectrometry.--------------------------------------------------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.25(a)----------------------------------------------------------------------------------------------------------------
SM 21st Edition SM 22nd Edition
Contaminant Methodology \1\ \28\ ASTM \4\----------------------------------------------------------------------------------------------------------------Naturally Occurring:Gross alpha and beta........... Evaporation........... 7110 B........... 7110 B...........Gross alpha.................... Coprecipitation....... 7110 C........... 7110 C...........Radium 226..................... Radon emanation....... 7500-Ra C........ 7500-Ra C........ D3454-05
Radiochemical......... 7500-Ra B........ 7500-Ra B........ D2460-07Radium 228..................... Radiochemical......... 7500-Ra D........ 7500-Ra D........Uranium........................ Radiochemical......... 7500-U B......... 7500-U B.........
ICP-MS................ 3125............. ................. D5673-05, 10
Alpha spectrometry.... 7500-U C......... 7500-U C......... D3972-09
Laser Phosphorimetry.. ................. ................. D5174-07
Alpha Liquid ................. ................. D6239-09
Scintillation
Spectrometry.Man-Made:Radioactive Cesium............. Radiochemical......... 7500-Cs B........ 7500-Cs B........
Gamma Ray Spectrometry 7120............. 7120............. D3649-06Radioactive Iodine............. Radiochemical......... 7500-I B......... 7500-I B......... D3649-06
7500-I C......... 7500-I C.........
7500-I D......... 7500-I D.........
Gamma Ray Spectrometry 7120............. 7120............. D4785-08Radioactive Strontium 89, 90... Radiochemical......... 7500-Sr B........ 7500-Sr B........Tritium........................ Liquid Scintillation.. 7500-\3\H B...... 7500-\3\H B...... D4107-08Gamma Emitters................. Gamma Ray Spectrometry 7120............. 7120............. D3649-06
7500-Cs B........ 7500-Cs B........ D4785-08
7500-I B......... 7500-I B......... .................----------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.74(a)(1)--------------------------------------------------------------------------------------------------------------------------------------------------------
Organism Methodology SM 21st Edition \1\ SM 22nd Edition \28\ SM Online \3\ Other--------------------------------------------------------------------------------------------------------------------------------------------------------Total Coliform.................... Total Coliform 9221 A, B, C........ 9221 A, B, C........ 9221 A,B,C-06.......
Fermentation
Technique.
Total Coliform 9222 A, B, C........
Membrane Filter
Technique.
ONPG-MUG Test........ 9223................ 9223 B.............. 9223 B-04...........Fecal Coliforms................... Fecal Coliform 9221 E.............. 9221 E.............. 9221 E-06...........
Procedure.
Fecal Coliform Filter 9222 D.............. 9222 D.............. 9222 D-06...........
Procedure.Heterotrophic bacteria............ Pour Plate Method.... 9215 B.............. 9215 B.............. 9215 B-04...........Turbidity......................... Nephelometric Method. 2130 B.............. 2130 B..............
Laser Nephelometry .................... .................... .................... Mitchell M5271.\10\
(on-line).
LED Nephelometry (on- .................... .................... .................... Mitchell M5331.\11\
line).
LED Nephelometry (on- .................... .................... .................... AMI Turbiwell\.15\
line).
LED Nephelometry .................... .................... .................... Orion AQ4500.\12\
(portable).--------------------------------------------------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Disinfectant Residuals Listed at 40 CFR 141.74(a)(2)--------------------------------------------------------------------------------------------------------------------------------------------------------
Residual Methodology SM 21st Edition \1\ SM 22nd Edition \28\ ASTM \4\ Other--------------------------------------------------------------------------------------------------------------------------------------------------------Free Chlorine..................... Amperometric 4500-Cl D............ 4500-Cl D............ D 1253-08............
Titration.
DPD Ferrous 4500-Cl F............ 4500-Cl F............
Titrimetric.
DPD Colorimetric.... 4500-Cl G............ 4500-Cl G............ ..................... Hach Method 10260.\31\
Syringaldazine 4500-Cl H............ 4500-Cl H............
(FACTS).
On-line Chlorine ..................... ..................... ..................... EPA 334.0.\16\
Analyzer.
Amperometric Sensor. ..................... ..................... ..................... ChloroSense.\17\Total Chlorine.................... Amperometric 4500-Cl D............ 4500-Cl D............ D 1253-08............
Titration.
Amperometric 4500-Cl E............ 4500-Cl E............
Titration (Low
level measurement).
DPD Ferrous 4500-Cl F............ 4500-Cl F............
Titrimetric.
DPD Colorimetric.... 4500-Cl G............ 4500-Cl G............ ..................... Hach Method 10260.\31\
Iodometric Electrode 4500-Cl I............ 4500-Cl I............
On-line Chlorine ..................... ..................... ..................... EPA 334.0.\16\
Analyzer.
Amperometric Sensor. ..................... ..................... ..................... ChloroSense.\17\Chlorine Dioxide.................. Amperometric 4500-ClO2 C.......... 4500-ClO2 C..........
Titration.
Amperometric 4500-ClO2 E.......... 4500-ClO2 E..........
Titration.
Amperometric Sensor. ..................... ..................... ..................... ChlordioX Plus.\32\Ozone............................. Indigo Method....... 4500-O3 B............ 4500-O3 B............--------------------------------------------------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.131(b)(1)--------------------------------------------------------------------------------------------------------------------------------------------------------
SM 21st SM 22nd
Contaminant Methodology EPA Method ASTM \4\ SM Online \3\ Edition \1\ Edition \28\ Other--------------------------------------------------------------------------------------------------------------------------------------------------------TTHM......................... P&T;/GC/MS....... 524.3 \9\, 524.4
\29\.HAA5......................... LLE ................ ................ 6251 B-07....... 6251 B......... 6251 B.........
(diazomethane)/
GC/ECD.
Ion 557 \14\........
Chromatography
Electrospray
Ionization
Tandem Mass
Spectrometry
(IC-ESI-MS/MS).Bromate...................... Two-Dimensional 302.0 \18\......
Ion
Chromatography
(IC).
Ion 557 \14\........
Chromatography
Electrospray
Ionization
Tandem Mass
Spectrometry
(IC-ESI-MS/MS).
Chemically ................ D 6581-08 A.....
Suppressed Ion
Chromatography.
Electrolytically ................ D 6581-08 B.....
Suppressed Ion
Chromatography.Chlorite..................... Chemically ................ D 6581-08 A.....
Suppressed Ion
Chromatography.
Electrolytically ................ D 6581-08 B.....
Suppressed Ion
Chromatography.Chlorite--daily monitoring as Amperometric ................ ................ ................ 4500-ClO2 E.... 4500-ClO2 E....
prescribed in 40 CFR Titration.
141.132(b)(2)(i)(A).
Amperometric ................ ................ ................ ............... ............... ChlordioX
Sensor. Plus.\32\--------------------------------------------------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Disinfectant Residuals Listed at 40 CFR 141.131(c)(1)--------------------------------------------------------------------------------------------------------------------------------------------------------
Residual Methodology SM 21st Edition \1\ SM 22nd Edition \28\ ASTM \4\ Other--------------------------------------------------------------------------------------------------------------------------------------------------------Free Chlorine..................... Amperometric 4500-Cl D........... 4500-Cl D........... D 1253-08...........
Titration.
DPD Ferrous 4500-Cl F........... 4500-Cl F...........
Titrimetric.
DPD Colorimetric..... 4500-Cl G........... 4500-Cl G........... .................... Hach Method 10260 \31\.
Syringaldazine 4500-Cl H........... 4500-Cl H...........
(FACTS).
Amperometric Sensor.. .................... .................... .................... ChloroSense \17\.
On-line Chlorine .................... .................... .................... EPA 334.0 \16\.
Analyzer.
Combined Chlorine................. Amperometric 4500-Cl D........... 4500-Cl D........... D 1253-08...........
Titration.
DPD Ferrous 4500-Cl F........... 4500-Cl F...........
Titrimetric.
DPD Colorimetric..... 4500-Cl G........... 4500-Cl G........... .................... Hach Method 10260 \31\.Total Chlorine.................... Amperometric 4500-Cl D........... 4500-Cl D........... D 1253-08...........
Titration.
Low level 4500-Cl E........... 4500-Cl E...........
Amperometric
Titration.
DPD Ferrous 4500-Cl F........... 4500-Cl F...........
Titrimetric.
DPD Colorimetric..... 4500-Cl G........... 4500-Cl G........... .................... Hach Method 10260 \31\.
Iodometric Electrode. 4500-Cl I........... 4500-Cl I...........
Amperometric Sensor.. .................... .................... .................... ChloroSense \17\.
On-line Chlorine .................... .................... .................... EPA 334.0 \16\.
Analyzer.Chlorine Dioxide.................. Amperometric Method 4500-ClO2 E......... 4500-ClO2 E.........
II.
Amperometric Sensor.. .................... .................... .................... ChlordioX Plus \32\.--------------------------------------------------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Disinfectant Residuals Listed at 40 CFR
141.131(c)(2), If Approved by the State------------------------------------------------------------------------
Residual Methodology Method------------------------------------------------------------------------Free Chlorine................ Test Strips..... Method D99-003 \5\------------------------------------------------------------------------
Alternative Testing Methods for Parameters Listed at 40 CFR 141.131(d)--------------------------------------------------------------------------------------------------------------------------------------------------------
Parameter Methodology SM 21st Edition \1\ SM 22nd Edition \28\ SM Online \3\ EPA--------------------------------------------------------------------------------------------------------------------------------------------------------Total Organic Carbon (TOC)........ High Temperature 5310 B.............. 5310 B.............. .................... 415.3, Rev 1.2 \19\.
Combustion.
Persulfate- 5310 C.............. 5310 C.............. .................... 415.3, Rev 1.2 \19\.
Ultraviolet or
Heated Persulfate
Oxidation.
Wet Oxidation........ 5310 D.............. 5310 D.............. .................... 415.3, Rev 1.2 \19\.Specific Ultraviolet Absorbance Calculation using DOC .................... .................... .................... 415.3, Rev 1.2 \19\.
(SUVA). and UV254 data.Dissolved Organic Carbon (DOC).... High Temperature 5310 B.............. 5310 B.............. .................... 415.3, Rev 1.2 \19\.
Combustion.
Persulfate- 5310 C.............. 5310 C.............. .................... 415.3, Rev 1.2 \19\.
Ultraviolet or
Heated Persulfate
Oxidation.
Wet Oxidation........ 5310 D.............. 5310 D.............. .................... 415.3, Rev 1.2 \19\.Ultraviolet absorption at 254 nm Spectrophotometry.... 5910 B.............. 5910 B.............. 5910 B-11........... 415.3, Rev 1.2 \19\.
(UV254).-------------------------------------------------------------------------------------------------------------------------------------------------------- Alternative Testing Methods With MRL <=0.0010 mg/L for Monitoring Listed
at 40 CFR 141.132(b)(3)(ii)(B)------------------------------------------------------------------------
Contaminant Methodology EPA method------------------------------------------------------------------------Bromate................ Two-Dimensional Ion 302.0 \18\
Chromatography (IC).
Ion Chromatography 557 \14\
Electrospray
Ionization Tandem Mass
Spectrometry (IC-ESI-
MS/MS).------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.402(c)(2)--------------------------------------------------------------------------------------------------------------------------------------------------------
SM 20th Edition SM 21st Edition SM 22nd Edition
Organism Methodology \6\ \1\ \28\ SM Online \3\ Other--------------------------------------------------------------------------------------------------------------------------------------------------------E. coli......................... Colilert[supreg].. .................. 9223 B............ 9223 B............ 9223 B-97, B-04...
Colisure[supreg].. .................. 9223 B............ 9223 B............ 9223 B-97, B-04...
Colilert-18....... 9223 B............ 9223 B............ 9223 B............ 9223 B-97, B-04...
Readycult[supreg]. .................. .................. .................. .................. Readycult[supreg]
\20\.
Colitag........... .................. .................. .................. .................. Modified ColitagTM
\13\.
Chromocult[supreg] .................. .................. .................. .................. Chromocult[supreg]
\21\.
EC-MUG............ .................. .................. 9221 F............ 9221 F-06.........
Tecta EC/TC \33\.. .................. .................. ..................Enterococci..................... Multiple-Tube .................. .................. .................. 9230 B-04.........
Technique.Coliphage....................... Two-Step .................. .................. .................. .................. Fast Phage \30\
Enrichment
Presence-Absence
Procedure.--------------------------------------------------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.704(a)----------------------------------------------------------------------------------------------------------------
Organism Methodology EPA Method----------------------------------------------------------------------------------------------------------------Cryptosporidium....................... Filtration/Immunomagnetic Separation/ 1623.1 \27\
Immunofluorescence Assay Microscopy.----------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.704(b)----------------------------------------------------------------------------------------------------------------
Organism Methodology SM 20th edition \6\----------------------------------------------------------------------------------------------------------------E. coli.................................. Membrane Filtration, Two Step.... 9222 D/9222 G----------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.852(a)(5)----------------------------------------------------------------------------------------------------------------
SM 20th,
Methodology 21st SM 22nd Edition
Organism category Method editions \1\ \28\ SM Online \3\
\6\----------------------------------------------------------------------------------------------------------------Total Coliforms.............. Lactose Standard Total ............ 9221 B.1, B.2.. 9221 B.1, B.2-
Fermentation Coliform 06.
Methods. Fermentation
Technique.
Enzyme Substrate Colilert[supreg ............ 9223 B......... 9223 B-04.
Methods. ].
Colisure[supreg ............ 9223 B......... 9223 B-04.
].
Colilert- 9223 B...... 9223 B......... 9223 B-04.
18[supreg].
Tecta EC/TC
.\33\Escherichia coli............. Escherichia coli EC-MUG medium.. ............ 9221 F.1....... 9221 F.1-06.
Procedure
(following
Lactose
Fermentation
Methods).
Enzyme Substrate Colilert[supreg ............ 9223 B......... 9223 B-04.
Methods. ].
Colisure[supreg ............ 9223 B......... 9223 B-04.
].
Colilert- 9223 B...... 9223 B......... 9223 B-04.
18[supreg].
Tecta EC/
TC.\33\----------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 143.4(b)--------------------------------------------------------------------------------------------------------------------------------------------------------
SM 21st Edition SM 22nd Edition
Contaminant Methodology EPA method ASTM \4\ \1\ \28\ SM online \3\--------------------------------------------------------------------------------------------------------------------------------------------------------Aluminum..................... Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Atomic ................ ................... 3111 D............ 3111 D............
Absorption;
Direct.
Atomic ................ ................... 3113 B............ 3113 B............ 3113 B-04, B-10.
Absorption;
Furnace.
Inductively ................ ................... 3120 B............ 3120 B............
Coupled Plasma.Chloride..................... Silver Nitrate ................ D 512-04 B, 12 B... 4500-Cl- B........ 4500-Cl- B........
Titration.
Ion ................ D 4327-11.......... 4110 B............ 4110 B............
Chromatography.
Potentiometric ................ ................... 4500-Cl- D........ 4500-Cl- D........
Titration.Color........................ Visual ................ ................... 2120 B............ 2120 B............
Comparison.Foaming Agents............... Methylene Blue ................ ................... 5540 C............ 5540 C............
Active
Substances
(MBAS).Iron......................... Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Atomic ................ ................... 3111 B............ 3111 B............
Absorption;
Direct.
Atomic ................ ................... 3113 B............ 3113 B............ 3113 B-04, B-10.
Absorption;
Furnace.
Inductively ................ ................... 3120 B............ 3120 B............
Coupled Plasma.Manganese.................... Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Atomic ................ ................... 3111 B............ 3111 B............
Absorption;
Direct.
Atomic ................ ................... 3113 B............ 3113 B............ 3113 B-04, B-10.
Absorption;
Furnace.
Inductively ................ ................... 3120 B............ 3120 B............
Coupled Plasma.Odor......................... Threshold Odor ................ ................... 2150 B............ 2150 B............
Test.Silver....................... Axially viewed 200.5, Revision
inductively 4.2 \2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Atomic ................ ................... 3111 B............ 3111 B............
Absorption;
Direct.
Atomic ................ ................... 3113 B............ 3113 B............ 3113 B-04, B-10.
Absorption;
Furnace.
Inductively ................ ................... 3120 B............ 3120 B............
Coupled Plasma.Sulfate...................... Ion ................ D 4327-11.......... 4110 B............ 4110 B............
Chromatography.
Gravimetric with ................ ................... 4500-SO4 2- C..... 4500-SO4 2- C..... 4500-SO4 2- C-97
ignition of
residue.
Gravimetric with ................ ................... 4500-SO4 2- D..... 4500-SO4 2- D..... 4500-SO4 2- D-97
drying of
residue.
Turbidimetric ................ D 516-07, 11....... 4500-SO4 2- E..... 4500-SO4 2- E..... 4500-SO4 2- E-97
method.
Automated ................ ................... 4500-SO4 2- F..... 4500-SO4 2- F..... 4500-SO4 2- F-97
methylthymol
blue method.Total Dissolved Solids....... Total Dissolved ................ ................... 2540 C............ 2540 C............
Solids Dried at
180 deg C.
Zinc......................... Axially viewed 200.5, Revision
inductively 4.2 \2\
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Atomic ................ ................... 3111 B............ 3111 B............
Absorption;
Direct
Aspiration.
Inductively ................ ................... 3120 B............ 3120 B............
Coupled Plasma.--------------------------------------------------------------------------------------------------------------------------------------------------------\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\ 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.)\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\ 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.\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\ Standard Methods for the Examination of Water and Wastewater, 20th edition (1998). Available from American Public Health Association, 800 I Street,
NW., Washington, DC 20001-3710.\7\ Method ME355.01, Revision 1.0. ``Determination of Cyanide in Drinking Water by GC/MS Headspace,'' May 26, 2009. Available at http://www.nemi.gov or
from James Eaton, H & E Testing Laboratory, 221 State Street, Augusta, ME 04333. (207) 287-2727.\8\ 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.\9\ 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.\10\ 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, PhD, PE, 656 Independence Valley Dr., Grand Junction, CO 81507.\11\ 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, PhD, PE, 656 Independence Valley Dr., Grand Junction, CO 81507.\12\ 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.\13\ Modified Colitag\TM\ Method, ``Modified Colitag\TM\ 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, 580 Skylane Boulevard, Santa Rosa, CA 95403.\14\ 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://water.epa.gov/scitech/drinkingwater/labcert/
analyticalmethods--expedited.cfm.\15\ 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.\16\ EPA Method 334.0. ``Determination of Residual Chlorine in Drinking Water Using an On-line Chlorine Analyzer,'' August 2009. EPA 815-B-09-013.
Available at http://epa.gov/safewater/methods/analyticalmethods--ogwdw.html.\17\ ChloroSense. ``Measurement of Free and Total Chlorine in Drinking Water by Palintest ChloroSense,'' August 2009. Available at https://www.nemi.gov
or from Palintest Ltd, 1455 Jamike Avenue (Suite 100), Erlanger, KY 41018.\18\ EPA Method 302.0. ``Determination of Bromate in Drinking Waters using Two-Dimensional Ion Chromatography with Suppressed Conductivity Detection,''
September 2009. EPA 815-B-09-014. Available at http://epa.gov/safewater/methods/analyticalmethods--ogwdw.html.\19\ EPA 415.3, Revision 1.2. ``Determination of Total Organic Carbon and Specific UV Absorbance at 254 nm in Source Water and Drinking Water,''
September 2009. EPA/600/R-09/122. Available at http://www.epa.gov/nerlcwww/ordmeth.htm.\20\ Readycult[supreg] Method, ``Readycult[supreg] 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 Millipore (division of Merck KGaA, Darmstadt, Germany), 290
Concord Road, Billerica, MA 01821.\21\ Chromocult[supreg] Method, ``Chromocult[supreg] 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 Millipore (division of Merck KGaA, Darmstadt, Germany),
290 Concord Road, Billerica, MA 01821.\22\ Hach Company Method, ``Hach Company SPADNS 2 (Arsenic-free) Fluoride Method 10225--Spectrophotometric Measurement of Fluoride in Water and
Wastewater,'' January 2011. 5600 Lindbergh Drive, P.O. Box 389, Loveland, Colorado 80539. (Available at http://www.hach.com.)\23\ Hach Company. ``Hach Company TNTplus\TM\ 835/836 Nitrate Method 10206--Spectrophotometric Measurement of Nitrate in Water and Wastewater,'' January
2011. 5600 Lindbergh Drive, P.O. Box 389, Loveland, Colorado 80539. (Available at http://www.hach.com.)\24\ EPA Method 525.3. ``Determination of Semivolatile Organic Chemicals in Drinking Water by Solid Phase Extraction and Capillary Column Gas
Chromatography/Mass Spectrometry (GC/MS),'' February 2012. EPA/600/R-12/010. Available at http://www.epa.gov/nerlcwww/ordmeth.htm.\25\ EPA Method 536. ``Determination of Triazine Pesticides and their Degradates in Drinking Water by Liquid Chromatography Electrospray Ionization
Tandem Mass Spectrometry (LC/ESI-MS/MS),'' October 2007. EPA 815-B-07-002. Available at http://water.epa.gov/drink.
\26\ EPA Method 523. ``Determination of Triazine Pesticides and their Degradates in Drinking Water by Gas Chromatography/Mass Spectrometry (GC/MS),''
February 2011. EPA 815-R-11-002. Available at http://water.epa.gov/drink.\27\ EPA Method 1623.1. ``Cryptosporidium and Giardia in Water by Filtration/IMS/FA,'' 2012. EPA-816-R-12-001. (Available at http://water.epa.gov/
drink.)\28\ Standard Methods for the Examination of Water and Wastewater, 22nd edition (2012). Available from American Public Health Association, 800 I Street
NW., Washington, DC 20001-3710.\29\ EPA Method 524.4, Version 1.0. ``Measurement of Purgeable Organic Compounds in Water by Gas Chromatography/Mass Spectrometry using Nitrogen Purge
Gas,'' May 2013. EPA 815-R-13-002. Available at http://water.epa.gov/drink.\30\ Charm Sciences Inc. ``Fast Phage Test Procedure. Presence/Absence for Coliphage in Ground Water with Same Day Positive Prediction''. Version 009.
November 2012. 659 Andover Street, Lawrence, MA 01843. Available at www.charmsciences.com.\31\ Hach Company. ``Hach Method 10260--Determination of Chlorinated Oxidants (Free and Total) in Water Using Disposable Planar Reagent-filled Cuvettes
and Mesofluidic Channel Colorimetry,'' April 2013. 5600 Lindbergh Drive, P.O. Box 389, Loveland, CO 80539. (Available at http://www.hach.com.)\32\ ChlordioX Plus. ``Chlorine Dioxide and Chlorite in Drinking Water by Amperometry using Disposable Sensors,'' November 2013. Available from
Palintest Ltd, Jamike Avenue (Suite 100), Erlanger, KY 41018.\33\ Tecta EC/TC. ``Presence/Absence Method for Simultaneous Detection of Total Coliforms and Escherichia coli (E. coli) in Drinking Water,'' April
2014. Available from Veolia Water Solutions and Technologies, Suite 4697, Biosciences Complex, 116 Barrie Street, Kingston, Ontario, Canada K7L 3N6. [74 FR 38353, Aug. 3, 2009, as amended at 74 FR 57914, Nov. 10, 2009; 74 FR 63069, Dec. 2, 2009; 75 FR 32299, June 8, 2010; 76 FR 37018, June 24, 2011; 77 FR 38527, June 28, 2012; 78 FR 32565, May 31, 2013; 78 FR 37463, June 21, 2013; 79 FR 35086, June 19, 2014; 79 FR 36428, June 27, 2014]