Electrode........  ......................  ......................  ......................  .......................  .....................  See footnote \16\
18. Chromium VI dissolved, mg/  0.45-micron
 L.                              Filtration
                                 followed by:
                                AA chelation-      ......................  3111 C................  ......................  3111 C-99..............  .....................  I-1232-85
                                 extraction or.
                                Ion                218.6, Rev. 3.3 (1994)  3500-Cr E.............  3500-Cr C.............  3500-Cr C-01...........  D5257-97.............  993.23
                                 Chromatography.
                                Colorimetric       ......................  3500-Cr D.............  3500-Cr B.............  3500-Cr B-01...........  D1687-92, 02 (A).....  I-1230-85
                                 (Diphenyl-carbaz
                                 ide).
19. Chromium--Total,\4\ mg/L..  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............  D1687-92, 02 (B).....  974.27 \3\, I-3236-85
                                 aspiration \36\.                                                                                \2\
                                AA chelation-      ......................  3111 C................  ......................  3111 C-99..............
                                 extraction.
                                AA furnace.......  ......................  3113 B................  ......................  3113 B-99..............  D1687-92, 02 (C).....  I-3233-93 \46\
                                STGFAA...........  200.9, Rev. 2.2 (1994)
                                ICP/AES \36\.....  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
                                DCP,\36\ or......  ......................  ......................  ......................  .......................  D4190-94, 99.........  See footnote \34\
                                Colorimetric       ......................  3500-Cr D.............  3500-Cr B.............  3500-Cr B-01...........
                                 (Diphenyl-carbaz
                                 ide).
20. Cobalt--Total,\4\ mg/L....  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B or C...........  ......................  3111 B or C-99.........  D3558-94, 03 (A or B)  p. 37 \9\, I-3239-85
                                 aspiration.                                                                                \2\
                                AA furnace.......  ......................  3113 B................  ......................  3113 B-99..............  D3558-94, 03 (C).....  I-4243-89 \51\
                                STGFAA...........  200.9, Rev. 2.2 (1994)
                                ICP/AES..........  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
                                DCP..............  ......................  ......................  ......................  .......................  D4190-94, 99.........  See footnote \34\
21. Color, platinum cobalt      Colorimetric       ......................  2120 E................  2120 E................  .......................  .....................  See footnote \18\
 units or dominant wavelength,   (ADMI), or.
 hue, luminance purity.
                                (Platinum          ......................  2120 B................  2120 B................  2120 B-01..............  .....................  I-1250-85 \2\
                                 cobalt), or.
                                Spectrophotometri  ......................  2120 C................  2120 C................
                                 c.
22. Copper--Total,\4\ mg/L....  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B or C...........  ......................  3111 B or C-99.........  D1688-95, 02 (A or B)  974.27 \3\ p. 37 \9\
                                 aspiration \36\.                                                                                I-3270-85 \2\ or I-
                                                                                3271-85 \2\
                                AA furnace.......  ......................  3113 B................  ......................  3113 B-99..............  D1688-95, 02 (C).....  I-4274-89 \51\
                                STGFAA...........  200.9, Rev. 2.2 (1994)
                                ICP/AES \36\.....  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
                                DCP \36\ or......  ......................  ......................  ......................  .......................  D4190-94, 99.........  See footnote \34\
                                Colorimetric       ......................  3500-Cu D.............  3500-Cu B.............  3500-Cu B-99...........
                                 (Neocuproine) or.
                                (Bicinchoninate).  ......................  3500-Cu E.............  3500-Cu C.............  3500-Cu C-99...........  .....................  See footnote \19\

23. Cyanide--Total, mg/L......  Automated          ......................  ......................  ......................  .......................  .....................  Kelada-01 \55\
                                 Distillation and
                                 Colorimetry, or.
                                Manual             335.4, Rev. 1.0 (1993)  4500-CN	C.............  4500-CN	C.............  .......................  D2036-98(A)..........  10-204-00-1-X \56\
                                 distillation       \57\.
                                 with MgCl2
                                 followed by:
                                Titrimetric or...  ......................  4500-CN	D.............  4500-CN	D.............  4500-CN	D-99...........  .....................  p. 22 \9\
                                Spectrophotometri  ......................  4500-CN	E.............  4500-CN	E.............  4500-CN	E-99...........  D2036-98(A)..........  I-3300-85
                                 c, manual or.
                                Automated \20\ or  335.4, Rev. 1.0 (1993)  ......................  ......................  .......................  .....................  10-204-00-1-X \56\, I-
                                                    \57\.                                                                                4302-85 \2\
                                Ion Selective      ......................  4500-CN	F.............  4500-CN	F.............  4500-CN	F-99...........  D2036-98(A)..........
                                 Electrode.
24. Available Cyanide, mg/L...  Cyanide Amenable   ......................  4500-CN	G.............  4500-CN	G.............  4500-CN	G-99...........  D2036-98(B)..........
                                 to Chlorination
                                 (CATC); Manual
                                 distillation
                                 with MgCl2
                                 followed by
                                 Titrimetric or
                                 Spectrophotometr
                                 ic.
                                Flow injection     ......................  ......................  ......................  .......................  D6888-04.............  OIA-1677 \44\
                                 and ligand
                                 exchange,
                                 followed by
                                 amperometry \61\.
                                Automated          ......................  ......................  ......................  .......................  .....................  Kelada-01 \55\
                                 Distillation and
                                 Colorimetry.
25. Fluoride--Total, mg/L.....  Manual             ......................  4500-F	B..............  4500-F	B..............  4500-F	B-97............
                                 distillation\6\
                                 followed by:
                                Electrode, manual  ......................  4500-F	B..............  4500-F	B..............  4500-F	C-97............  D1179-93, 99 (B).....
                                 or.
                                Automated........  ......................  ......................  ......................  .......................  .....................  I-4327-85 \2\
                                Colorimetric,      ......................  4500-F	D..............  4500-F	D..............  4500-F	D-97............  D1179-93, 99 (A).....
                                 (SPADNS) or.
                                Automated          ......................  4500-F	E..............  4500-F	E..............  4500-F	E-97............
                                 complexone.
                                Ion                300.0, Rev 2.1 (1993)   4110 B................  4110 B................  4110 B-00..............  D4327-97,03..........  993.30 \3\
                                 Chromatography.    and 300.1, Rev 1.0
                                                    (1997).
                                CIE/UV...........  ......................  ......................  ......................  .......................  .....................  D6508, Rev. 2 \54\
26. Gold--Total,\4\ mg/L......  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............
                                 aspiration, or.
                                AA furnace, or...  231.2 (Rev. 1978) \1\.
                                DCP..............  ......................  ......................  ......................  .......................  .....................  See footnote \34\
27. Hardness--Total, as CaCO3,  Automated          130.1 (Issued 1971)
 mg/L.                           colorimetric,.     \1\.
                                Titrimetric        ......................  2340 B or C...........  2340 B or C...........  2340 B or C-97.........  D1126-86(92), 02.....  973.5 2B \3\, I-1338-
                                 (EDTA) or.                                                                                85\2\
                                Ca plus Mg as
                                 their
                                 carbonates, by
                                 inductively
                                 coupled plasma
                                 or AA direct
                                 aspiration. (See
                                 Parameters 13
                                 and 33)..
28. Hydrogen ion (pH), pH       Electrometric      ......................  4500-H+ B.............  4500-H+ B.............  4500-H+ B-00...........  D1293-84 (90), 99 (A   973.41.\3\, I-1586-85
 units.                          measurement or.                                                                                or B).                 \2\
                                Automated          150.2 (Dec. 1982) \1\.  ......................  ......................  .......................  .....................  See footnote\21\, I-
                                 electrode.                                                                                2587-85\2\
29. Iridium--Total,\4\ mg/L...  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............
                                 aspiration or.
                                AA furnace.......  235.2 (Issued 1978)
                                                    \1\.
30. Iron--Total,\4\ mg/L......  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B or C...........  ......................  3111 B or C-99.........  D1068-96, 03 (A or B)  974.27 \3\, I-3381-85
                                 aspiration \36\.                                                                                \2\
                                AA furnace.......  ......................  3113 B................  ......................  3113 B-99..............  D1068-96, 03 (C).....
                                STGFAA...........  200.9, Rev. 2.2 (1994)
                                ICP/AES \36\.....  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
                                DCP \36\ or......  ......................  ......................  ......................  .......................  D4190-94, 99.........  See footnote \34\
                                Colorimetric       ......................  3500-Fe D.............  3500-Fe B.............  3500-Fe B-97...........  D1068-96, 03 (D).....  See footnote \22\
                                 (Phenanthroline).
31. Kjeldahl Nitrogen \5\--     Digestion and      ......................  4500-Norg B or C and    4500-Norg B or C and    4500-Norg B or C-97 and  D3590-89, 02 (A).....
 Total, (as N), mg/L.            distillation                               4500-NH3 B.             4500-NH3 B.             4500-NH3 B-97.
                                 followed by:
                                 \20\
                                Titration or.....  ......................  4500-NH3 C (19th) and   4500-NH3 C............  4500-NH3 C-97..........  D3590-89, 02 (A).....  973.48 \3\
                                                                            4500-NH 3 E (18th).

                                Nesslerization or  ......................  4500-NH3 C (18th Only)  ......................  .......................  D3590-89, 02 (A).....
                                Electrode........  ......................  4500-NH3 F or G (18th)  4500-NH3 D or E.......  4500-NH3 D or E-97.....
                                                                            and 4500-NH3 D or E
                                                                            (19th).
                                Automated phenate  351.1 (Rev. 1978) \1\.  ......................  ......................  .......................  .....................  I-4551-78 \8\
                                 colorimetric.
                                Semi-automated     351.2, Rev. 2.0 (1993)  ......................  ......................  .......................  D3590-89, 02 (B).....  I-4515-91 \45\
                                 block digestor
                                 colorimetric.
                                Manual or block    ......................  ......................  ......................  .......................  D3590-89, 02 (A).....
                                 digestor
                                 potentiometric.
                                Block digester,    ......................  ......................  ......................  .......................  .....................  See footnote \39\
                                 followed by Auto
                                 distillation and
                                 Titration, or.
                                Nesslerization,    ......................  ......................  ......................  .......................  .....................  See footnote \40\
                                 or.
                                Flow injection     ......................  ......................  ......................  .......................  .....................  See footnote \41\
                                 gas diffusion.
32. Lead--Total,\4\ mg/L......  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B or C...........  ......................  3111 B or C-99.........  D3559-96, 03 (A or B)  974.27 \3\, I-3399-85
                                 aspiration \36\.                                                                                \2\
                                AA furnace.......  ......................  3113 B................  ......................  3113 B-99..............  D3559-96, 03 (D).....  I-4403-89 \51\
                                STGFAA...........  200.9, Rev. 2.2 (1994)
                                ICP/AES \36\.....  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
                                DCP \36\.........  ......................  ......................  ......................  .......................  D4190-94, 99.........  See footnote \34\
                                Voltametry \11\    ......................  ......................  ......................  .......................  D3559-96, 03 (C).....
                                 or.
                                Colorimetric       ......................  3500-Pb D.............  3500-Pb B.............  3500-Pb B-97...........
                                 (Dithizone).
33. Magnesium--Total,\4\ mg/L.  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............  D511-93, 03(B).......  974.27 \3\, I-3447-85
                                 aspiration.                                                                                \2\
                                ICP/AES..........  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
                                DCP or...........  ......................  ......................  ......................  .......................  .....................  See footnote \34\
                                Gravimetric......  ......................  3500-Mg D.............
                                Ion                ......................  ......................  ......................  .......................  D6919-03.............
                                 Chromatography.
34. Manganese--Total,\4\ mg/L.  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............  D858-95, 02 (A or B).  974.27 \3\, I-3454-85
                                 aspiration \36\.                                                                                \2\
                                AA furnace.......  ......................  3113 B................  ......................  3113 B-99..............  D858-95, 02 (C)......
                                STGFAA...........  200.9, Rev. 2.2 (1994)
                                ICP/AES \36\.....  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
                                DCP36, or........  ......................  ......................  ......................  .......................  D4190-94, 99.........  See footnote \34\
                                Colorimetric       ......................  3500--Mn D............  3500-Mn B.............  3500-Mn B-99...........  .....................  920.203 \3\
                                 (Persulfate), or.
                                (Periodate)......  ......................  ......................  ......................  .......................  .....................  See footnote \23\
35. Mercury--Total \4\, mg/L..  Cold vapor,        245.1, Rev. 3.0 (1994)  3112 B................  ......................  3112 B-99..............  D3223-97, 02.........  977.22 \3\, I-3462-
                                 manual or.                                                                                85\2\
                                Automated........  245.2 (Issued 1974)...
                                Cold vapor atomic  245.7 Rev. 2.0 (2005)
                                 fluorescence       \59\.
                                 spectrometry
                                 (CVAFS).
                                Purge and Trap     1631E \43\............
                                 CVAFS.
36. Molybdenum--Total \4\, mg/  Digestion \4\
 L.                              followed by:
                                AA direct          ......................  3111 D................  ......................  3111 D-99..............  .....................  I-3490-85 \2\
                                 aspiration.

                                AA furnace.......  ......................  3113 B................  ......................  3113 B-99..............  .....................  I-3492-96 \47\
                                ICP/AES..........  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
                                DCP..............  ......................  ......................  ......................  .......................  .....................  See footnote \34\
37. Nickel--Total,\4\ mg/L....  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B or C...........  ......................  3111 B or C-99.........  D1886-90, 94 (98) (A   I-3499-85 \2\
                                 aspiration \36\.                                                                                or B).
                                AA furnace.......  ......................  3113 B................  ......................  3113 B-99..............  D1886-90, 94 (98) (C)  I-4503-89 \51\
                                STGFAA...........  200.9, Rev. 2.2 (1994)
                                ICP/AES \36\.....  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
                                DCP \36\, or.....  ......................  ......................  ......................  .......................  D4190-94, 99.........  See footnote \34\
                                Colorimetric       ......................  3500-Ni D (17th
                                 (heptoxime).                               Edition).
38. Nitrate (as N), mg/L......  Ion                300.0, Rev 2.1 (1993)   4110 B................  4110 B................  4110 B-00..............  D4327-97, 03.........  993.30 \3\
                                 Chromatography.    and 300.1, Rev 1.0
                                                    (1997).
                                CIE/UV...........  ......................  ......................  ......................  .......................  .....................  D6508, Rev. 2 \54\
                                Ion Selective      ......................  4500-NO3 	D...........  4500-NO3 	D...........  4500-NO3 	D-00.........
                                 Electrode.
                                Colorimetric       352.1 \1\.............  ......................  ......................  .......................  .....................  973.50 \3\, 419D \1,\
                                 (Brucine                                                                                \7\, p. 28 \9\
                                 sulfate), or.
                                Nitrate-nitrite N
                                 minus Nitrite N
                                 (See parameters
                                 39 and 40)..
39. Nitrate-nitrite (as N), mg/ Cadmium            ......................  4500-NO3	E............  4500-NO3	E............  4500-NO3	E-00..........  D3867-99(B)..........
 L.                              reduction,
                                 manual or.
                                Automated, or....  353.2, Rev. 2.0 (1993)  4500-NO3	F............  4500-NO3	F............  4500-NO3	F-00..........  D3867-99(A)..........  I-4545-85 \2\
                                Automated          ......................  4500-NO3	H............  4500-NO3	H............  4500-NO3	H-00..........
                                 hydrazine.
                                Ion                300.0, Rev 2.1 (1993)   4110 B................  4110 B................  4110 B-00..............  D4327-97.............  993.30 \3\
                                 Chromatography.    and 300.1, Rev 1.0
                                                    (1997).
                                CIE/UV...........  ......................  ......................  ......................  .......................  .....................  D6508, Rev. 2 \54\
40. Nitrite (as N), mg/L......  Spectrophotometri  ......................  4500-NO2	B............  4500-NO2	B............  4500-NO2	B-00..........  .....................  See footnote \25\
                                 c: Manual or.
                                Automated          ......................  ......................  ......................  .......................  .....................  I-4540-85 \2\
                                 (Diazotization).
                                Automated          353.2, Rev. 2.0 (1993)  4500-NO3	F............  4500-NO3	F............  4500-NO3	F-00..........  D3867-99(A)..........  I-4545-85 \2\
                                 (*bypass cadmium
                                 reduction).
                                Manual (*bypass    ......................  4500-NO3	E............  4500-NO3	E............  4500-NO3	E-00..........  D3867-99(B)..........
                                 cadmium
                                 reduction).
                                Ion                300.0, Rev 2.1 (1993)   4110 B................  4110 B................  4110 B-00..............  D4327-97, 03.........  993.30 \3\
                                 Chromatography.    and 300.1, Rev 1.0
                                                    (1997).
                                CIE/UV...........  ......................  ......................  ......................  .......................  .....................  D6508, Rev.2 \54\
41. Oil and grease--Total       Hexane             1664A \42\............  ......................  5520 B \38\...........  5520 B-01 \38\.........
 recoverable, mg/L.              extractable
                                 material (HEM):
                                 n-Hexane
                                 extraction and
                                 gravimetry.
                                Silica gel         1664A \42\............
                                 treated HEM (SGT-
                                 HEM): Silica gel
                                 treatment and
                                 gravimetry..
42. Organic carbon--Total       Combustion or      ......................  5310 B, C, or D.......  5310 B, C, or D.......  5310 B, C, or D-00.....  D2579-93 (A or B)....  973.47,\3\ p. 14 \24\
 (TOC), mg/L.                    oxidation.
43. Organic nitrogen (as N),    Total Kjeldahl N
 mg/L.                           (Parameter 31)
                                 minus ammonia N
                                 (Parameter 4).
44. Orthophosphate (as P), mg/  Ascorbic acid
 L.                              method:.
                                Automated, or....  365.1, Rev. 2.0 (1993)  4500-P F..............  4500-P F..............  .......................  .....................  973.56 \3\, I-4601-85
                                                                                \2\
                                Manual single      ......................  4500-P E..............  4500-P E..............  .......................  D515-88(A)...........  973.55 \3\
                                 reagent.
                                Manual two         365.3 (Issued 1978)\1\
                                 reagent.

                                Ion                300.0, Rev 2.1 (1993)   4110 B................  4110 B................  4110 B-00..............  D4327-97, 03.........  993.30 \3\
                                 Chromatography.    and 300.1, Rev 1.0
                                                    (1997).
                                CIE/UV...........  ......................  ......................  ......................  .......................  .....................  D6508, Rev. 2 \54\
45. Osmium--Total \4\, mg/L...  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 D................  ......................  3111 D-99..............
                                 aspiration, or.
                                AA furnace.......  252.2 (Issued 1978)
                                                    \1\.
46. Oxygen, dissolved, mg/L...  Winkler (Azide     ......................  4500-O C..............  4500-O C..............  4500-O C-01............  D888-92, 03 (A)......  973.4 5B \3\, I-1575-
                                 modification),                                                                                78 \8\
                                 or.
                                Electrode........  ......................  4500-O G..............  4500-O G..............  4500-O G-01............  D888-92, 03 (B)......  I-1576-78 \8\
47. Palladium--Total,\4\ mg/L.  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............  .....................  p. S27 \10\
                                 aspiration, or.
                                AA furnace.......  253.2 \1\ (Issued       ......................  ......................  .......................  .....................  p. S28 \10\
                                                    1978).
                                DCP..............  ......................  ......................  ......................  .......................  .....................  See footnote \34\
48. Phenols, mg/L.............  Manual             420.1 \1\ (Rev. 1978).  ......................  ......................  .......................  .....................  See footnote \27\
                                 distillation
                                 \26\ Followed
                                 by:
                                Colorimetric       420.1 \1\ (Rev. 1978).  ......................  ......................  .......................  .....................  See footnote \27\
                                 (4AAP) manual,
                                 or.
                                Automated........  420.4 Rev. 1.0 (1993).
49. Phosphorus (elemental), mg/ Gas-liquid         ......................  ......................  ......................  .......................  .....................  See footnote \28\
 L.                              chromatography.
50. Phosphorus--Total, mg/L...  Persulfate         ......................  4500-P B.5............  4500-P B.5............  .......................  .....................  973.55 \3\
                                 digestion
                                 followed by:
                                 \20\
                                Manual or........  365.3 \1\ (Issued       4500-P E..............  4500-P E..............  .......................  D515-88(A)...........
                                                    1978).
                                Automated          365.1 Rev. 2.0 (1993).  4500-P F..............  4500-P F..............  .......................  .....................  973.56 \3\, I-4600-85
                                 ascorbic acid                                                                                \2\
                                 reduction.
                                Semi-automated     365.4 \1\ (Issued       ......................  ......................  .......................  D515-88(B)...........  I-4610-91 \48\
                                 block digestor.    1974).
51. Platinum--Total,\4\ mg/L..  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............
                                 aspiration.
                                AA furnace.......  255.2 \1\.............
                                DCP..............  ......................  ......................  ......................  .......................  .....................  See footnote \34\
52. Potassium--Total,\4\ mg/L.  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............  .....................  973.53 \3\, I-3630-85
                                 aspiration.                                                                                \2\
                                ICP/AES..........  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............
                                Flame              ......................  3500-K D..............  3500-K B..............  3500-K B-97............
                                 photometric, or.
                                Colorimetric.....  ......................  ......................  ......................  .......................  .....................  317 B \17\
                                Ion                ......................  ......................  ......................  .......................  D6919-03.............
                                 Chromatography.
53. Residue--Total, mg/L......  Gravimetric, 103-  ......................  2540 B................  2540 B................  2540 B-97..............  .....................  I-3750-85 \2\
                                 105[deg].
54. Residue--filterable, mg/L.  Gravimetric,       ......................  2540 C................  2540 C................  2540 C-97..............  .....................  I-1750-85 \2\
                                 180[deg].
55. Residue--non-filterable     Gravimetric, 103-  ......................  2540 D................  2540 D................  2540 D-97..............  .....................  I-3765-85 \2\
 (TSS), mg/L.                    105 [deg]C post
                                 washing of
                                 residue.
56. Residue--settleable, mg/L.  Volumetric,        ......................  2540 F................  2540 F................  2540 F-97..............
                                 (Imhoff cone),
                                 or gravimetric.
57. Residue--Volatile, mg/L...  Gravimetric, 550   160.4 \1\.............  ......................  ......................  .......................  .....................  I-3753-85 \2\
                                 [deg]C.
58. Rhodium--Total,\4\ mg/L...  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............
                                 aspiration, or.
                                AA furnace.......  265.2 \1\.............
59. Ruthenium--Total,\4\ mg/L.  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............
                                 aspiration, or.
                                AA furnace.......  267.2 \1\.............
60. Selenium--Total,\4\ mg/L..  Digestion \4\
                                 followed by:
                                AA furnace.......  ......................  3113 B................  ......................  3113 B-99..............  D3859-98, 03 (B).....  I-4668-98 \49\

                                STGFAA...........  200.9, Rev. 2.2 (1994)
                                ICP/AES \36\.....  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
                                AA gaseous         ......................  3114 B................  ......................  3114 B-97..............  D3859-98, 03 (A).....  I-3667-85 \2\
                                 hydride.
61. Silica--Dissolved,\37\ mg/  0.45 micron
 L.                              filtration
                                 followed by:
                                Colorimetric,      ......................  4500-Si D.............  4500-SiO2 C...........  4500-SiO2C-97..........  D859-94, 00..........  I-1700-85 \2\
                                 Manual or.
                                Automated          ......................  ......................  ......................  .......................  .....................  I-2700-85 \2\
                                 (Molybdosilicate
                                 ), or.
                                ICP/AES..........  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
62. Silver--Total,4, 31 mg/L..  Digestion 4, 29
                                 followed by:
                                AA direct          ......................  3111 B or C...........  ......................  3111 B or C-99.........  .....................  974.27 \3\, p. 37
                                 aspiration.                                                                                \9\, I-3720-85 \2\
                                AA furnace.......  ......................  3113 B................  ......................  3113 B-99..............  .....................  I-4724-89 \51\
                                STGFAA...........  200.9, Rev. 2.2 (1994)
                                ICP/AES..........  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
                                DCP..............  ......................  ......................  ......................  .......................  .....................  See footnote \34\
63. Sodium--Total,\4\ mg/L....  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............  .....................  973.54 \3\, I-3735-85
                                 aspiration.                                                                                \2\
                                ICP/AES..........  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
                                DCP, or..........  ......................  ......................  ......................  .......................  .....................  See footnote \34\
                                Flame photometric  ......................  3500-Na D.............  3500-Na B.............  3500-Na B-97...........
                                Ion                ......................  ......................  ......................  .......................  D 6919-03............
                                 Chromatography.
64. Specific conductance,       Wheatstone bridge  120.1 \1\ (Rev. 1982).  2510 B................  2510 B................  2510 B-97..............  D1125-95 (99) (A)....  973.40 \3\, I-2781-85
 micromhos/cm at 25[deg]C.                                                                                \2\
65. Sulfate (as SO4), mg/L....  Automated          375.2, Rev. 2.0 (1993)
                                 colorimetric.
                                Gravimetric......  ......................  4500-SO4 \2\	C or D...  4500-SO4 \2\	C or D...  .......................  .....................  925.54 \3\
                                Turbidimetric....  ......................  ......................  ......................  .......................  D516-90, 02..........  426C \3\0
                                Ion                300.0, Rev 2.1 (1993)   4110 B................  4110 B................  4110 B-00..............  D4327-97, 03.........  993.30 \3\
                                 Chromatography.    and 300.1, Rev 1.0
                                                    (1997).
                                CIE/UV...........  ......................  ......................  ......................  .......................  .....................  D6508, Rev. 2 \54\
66. Sulfide (as S), mg/L......  Titrimetric        ......................  4500-S \2\	F (19th)     4500-S \2\	F..........  4500-S \2\	F-00........  .....................  I-3840-85 \2\
                                 (iodine), or.                              4500-S \2\	E (18th).
                                Colorimetric       ......................  4500-S \2\	D..........  4500-S \2\	D..........  4500-S \2\	D-00........
                                 (methylene blue).
                                Ion Selective      ......................  4500-S \2\	G..........  4500-S \2\	G..........  4500-S \2\	G-00........  D4658-03.............
                                 Electrode.
67. Sulfite (as SO3), mg/L....  Titrimetric        ......................  4500-SO3 \2\	B........  4500-SO3 \2\	B........  4500-SO3 \2\	B-00......
                                 (iodine-iodate).
68. Surfactants, mg/L.........  Colorimetric       ......................  5540 C................  5540 C................  5540 C-00..............  D2330-88, 02.........
                                 (methylene blue).
69. Temperature, [deg]C.......  Thermometric.....  ......................  2550 B................  2550 B................  2550 B-00..............  .....................  See footnote \32\
70. Thallium--Total, \4\ mg/L.  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............
                                 aspiration.
                                AA furnace.......  279.2 \1\ (Issued
                                                    1978).
                                STGFAA...........  200.9, Rev. 2.2 (1994)
                                ICP/AES..........  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
71. Tin--Total,\4\ mg/L.......  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B................  ......................  3111 B-99..............  .....................  I-3850-78 \8\
                                 aspiration.
                                AA furnace, or...  ......................  3113 B................  ......................  3113 B-99..............
                                STGFAA...........  200.9, Rev. 2.2 (1994)

                                ICP/AES..........  200.7, Rev. 4.4 (1994)
72. Titanium--Total,\4\ mg/L..  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 D................  ......................  3111 D-99..............
                                 aspiration.
                                AA furnace.......  283.2 \1\ (Issued
                                                    1978).
                                DCP..............  ......................  ......................  ......................  .......................  .....................  See footnote \34\
73. Turbidity, NTU \53\.......  Nephelometric....  180.1, Rev. 2.0 (1993)  2130 B................  2130 B................  2130 B-01..............  D1889-94, 00.........  I-3860-85 \2\
74. Vanadium--Total,\4\ mg/L..  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 D................  ......................  3111 D-99..............
                                 aspiration.
                                AA furnace.......  ......................  ......................  ......................  .......................  D3373-93, 03.........
                                ICP/AES..........  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99..............  .....................  I-4471-97 \50\
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
                                DCP, or..........  ......................  ......................  ......................  .......................  D4190-94, 99.........  See footnote \34\
                                Colorimetric       ......................  3500-V D..............  3500-V B..............  3500-V B-97............
                                 (Gallic Acid).
75. Zinc -Total \4\, mg/L.....  Digestion \4\
                                 followed by:
                                AA direct          ......................  3111 B or C...........  ......................  3111 B or C-99.........  D1691-95, 02 (A or B)  974.27 \3\, p. 37
                                 aspiration \36\.                                                                                \9\, I-3900-85 \2\
                                AA furnace.......  289.2 \1\ (Issued
                                                    1978).
                                ICP/AES \36\.....  200.7, Rev. 4.4 (1994)  3120 B................  3120 B................  3120 B-99 \59\.........  .....................  I-4471-97 \50\
                                ICP/MS...........  200.8, Rev. 5.4 (1994)  ......................  ......................  .......................  D5673-03.............  993.14 \3\
                                DCP,\36\ or......  ......................  ......................  ......................  .......................  D4190-94, 99.........  See footnote \34\
                                Colorimetric       ......................  3500-Zn E.............
                                 (Dithizone) or.
                                (Zincon).........  ......................  3500-Zn F.............  3500-Zn B.............  3500-Zn B-97...........  .....................  See footnote \33\
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Table 1B Notes:
\1\ ``Methods for Chemical Analysis of Water and Wastes,'' Environmental Protection Agency, Environmental Monitoring Systems Laboratory-Cincinnati (EMSL-CI), EPA-600/4-79-020 (NTIS PB 84-
  128677), Revised March 1983 and 1979 where applicable.
\2\ Fishman, M. J., et al. ``Methods for Analysis of Inorganic Substances in Water and Fluvial Sediments,'' U.S. Department of the Interior, Techniques of Water-Resource Investigations of the
  U.S. Geological Survey, Denver, CO, Revised 1989, unless otherwise stated.
\3\ ``Official Methods of Analysis of the Association of Official Analytical Chemists,'' Methods Manual, Sixteenth Edition, 4th Revision, 1998.
\4\ For the determination of total metals (which are equivalent to total recoverable metals) the sample is not filtered before processing. A digestion procedure is required to solubilize
  analytes in suspended material and to break down organic-metal complexes (to convert the analyte to a detectable form for colorimetric analysis). For non-platform graphite furnace atomic
  absorption determinations a digestion using nitric acid (as specified in Section 4.1.3 of Methods for the Chemical Analysis of Water and Wastes) is required prior to analysis. The procedure
  used should subject the sample to gentle, acid refluxing and at no time should the sample be taken to dryness. For direct aspiration flame atomic absorption determinations (FLAA) a
  combination acid (nitric and hydrochloric acids) digestion is preferred prior to analysis. The approved total recoverable digestion is described as Method 200.2 in Supplement I of ``Methods
  for the Determination of Metals in Environmental Samples'' EPA/600R-94/111, May, 1994, and is reproduced in EPA Methods 200.7, 200.8, and 200.9 from the same Supplement. However, when using
  the gaseous hydride technique or for the determination of certain elements such as antimony, arsenic, selenium, silver, and tin by non-EPA graphite furnace atomic absorption methods, mercury
  by cold vapor atomic absorption, the noble metals and titanium by FLAA, a specific or modified sample digestion procedure may be required and in all cases the referenced method write-up
  should be consulted for specific instruction and/or cautions. For analyses using inductively coupled plasma-atomic emission spectrometry (ICP-AES), the direct current plasma (DCP) technique
  or the EPA spectrochemical techniques (platform furnace AA, ICP-AES, and ICP-MS) use EPA Method 200.2 or an approved alternate procedure (e.g., CEM microwave digestion, which may be used
  with certain analytes as indicated in Table IB); the total recoverable digestion procedures in EPA Methods 200.7, 200.8, and 200.9 may be used for those respective methods. Regardless of the
  digestion procedure, the results of the analysis after digestion procedure are reported as ``total'' metals.
\5\ Copper sulfate may be used in place of mercuric sulfate.
\6\ Manual distillation is not required if comparability data on representative effluent samples are on file to show that this preliminary distillation step is not necessary: however, manual
  distillation will be required to resolve any controversies.
\7\ Ammonia, Automated Electrode Method, Industrial Method Number 379-75 WE, dated February 19, 1976, Bran & Luebbe (Technicon) Auto Analyzer II, Bran & Luebbe Analyzing Technologies, Inc.,
  Elmsford, NY 10523.
\8\ The approved method is that cited in ``Methods for Determination of Inorganic Substances in Water and Fluvial Sediments'', USGS TWRI, Book 5, Chapter A1 (1979).
\9\ American National Standard on Photographic Processing Effluents, April 2, 1975. Available from ANSI, 25 West 43rd st., New York, NY 10036.
\10\ ``Selected Analytical Methods Approved and Cited by the United States Environmental Protection Agency,'' Supplement to the Fifteenth Edition of Standard Methods for the Examination of
  Water and Wastewater (1981).
\11\ The use of normal and differential pulse voltage ramps to increase sensitivity and resolution is acceptable.
\12\ Carbonaceous biochemical oxygen demand (CBOD5) must not be confused with the traditional BOD5 test method which measures ``total BOD.'' The addition of the nitrification inhibitor is not
  a procedural option, but must be included to report the CBOD5 parameter. A discharger whose permit requires reporting the traditional BOD5 may not use a nitrification inhibitor in the
  procedure for reporting the results. Only when a discharger's permit specifically states CBOD5 is required can the permittee report data using a nitrification inhibitor.
\13\ OIC Chemical Oxygen Demand Method, Oceanography International Corporation, 1978, 512 West Loop, P.O. Box 2980, College Station, TX 77840.
\14\ Chemical Oxygen Demand, Method 8000, Hach Handbook of Water Analysis, 1979, Hach Chemical Company, P.O. Box 389, Loveland, CO 80537.

\15\ The back titration method will be used to resolve controversy.
\16\ Orion Research Instruction Manual, Residual Chlorine Electrode Model 97-70, 1977, Orion Research Incorporated, 840 Memorial Drive, Cambridge, MA 02138. The calibration graph for the Orion
  residual chlorine method must be derived using a reagent blank and three standard solutions, containing 0.2, 1.0, and 5.0 mL 0.00281 N potassium iodate/100 mL solution, respectively.
\17\ The approved method is that cited in Standard Methods for the Examination of Water and Wastewater, 14th Edition, 1976.
\18\ National Council of the Paper Industry for Air and Stream Improvement, Inc., Technical Bulletin 253, December 1971.
\19\ Copper, Biocinchoinate Method, Method 8506, Hach Handbook of Water Analysis, 1979, Hach Chemical Company, P.O. Box 389, Loveland, CO 80537.
\20\ When using a method with block digestion, this treatment is not required.
\21\ Hydrogen ion (pH) Automated Electrode Method, Industrial Method Number 378-75WA, October 1976, Bran & Luebbe (Technicon) Autoanalyzer II. Bran & Luebbe Analyzing Technologies, Inc.,
  Elmsford, NY 10523.
\22\ Iron, 1,10-Phenanthroline Method, Method 8008, 1980, Hach Chemical Company, P.O. Box 389, Loveland, CO 80537.
\23\ Manganese, Periodate Oxidation Method, Method 8034, Hach Handbook of Wastewater Analysis, 1979, pages 2-113 and 2-117, Hach Chemical Company, Loveland, CO 80537.
\24\ Wershaw, R. L.,et al., ``Methods for Analysis of Organic Substances in Water,'' Techniques of Water-Resources Investigation of the U.S. Geological Survey, Book 5, Chapter A3, (1972
  Revised 1987) p. 14.
\25\ Nitrogen, Nitrite, Method 8507, Hach Chemical Company, P.O. Box 389, Loveland, CO 80537.
\26\ Just prior to distillation, adjust the sulfuric-acid-preserved sample to pH 4 with 1 + 9 NaOH.
\27\ The approved method is cited in Standard Methods for the Examination of Water and Wastewater, 14th Edition. The colorimetric reaction is conducted at a pH of 10.00.2. The
  approved methods are given on pp 576-81 of the 14th Edition: Method 510A for distillation, Method 510B for the manual colorimetric procedure, or Method 510C for the manual spectrometric
  procedure.
\28\ R.F. Addison and R. G. Ackman, ``Direct Determination of Elemental Phosphorus by Gas-Liquid Chromatography,'' Journal of Chromatography, Vol. 47, No.3, pp. 421-426, 1970.
\29\ Approved methods for the analysis of silver in industrial wastewaters at concentrations of 1 mg/L and above are inadequate where silver exists as an inorganic halide. Silver halides such
  as the bromide and chloride are relatively insoluble in reagents such as nitric acid but are readily soluble in an aqueous buffer of sodium thiosulfate and sodium hydroxide to pH of 12.
  Therefore, for levels of silver above 1 mg/L, 20 mL of sample should be diluted to 100 mL by adding 40 mL each of 2 M Na2S2O3 and NaOH. Standards should be prepared in the same manner. For
  levels of silver below 1 mg/L the approved method is satisfactory.
\30\ The approved method is that cited in Standard Methods for the Examination of Water and Wastewater, 15th Edition.
\31\ For samples known or suspected to contain high levels of silver (e.g., in excess of 4 mg/L), cyanogen iodide should be used to keep the silver in solution for analysis. Prepare a cyanogen
  iodide solution by adding 4.0 mL of concentrated NH4OH, 6.5 g of KCN, and 5.0 mL of a 1.0 N solution of I2 to 50 mL of reagent water in a volumetric flask and dilute to 100.0 mL. After
  digestion of the sample, adjust the pH of the digestate to >7 to prevent the formation of HCN under acidic conditions. Add 1 mL of the cyanogen iodide solution to the sample digestate and
  adjust the volume to 100 mL with reagent water (NOT acid). If cyanogen iodide is added to sample digestates, then silver standards must be prepared that contain cyanogen iodide as well.
  Prepare working standards by diluting a small volume of a silver stock solution with water and adjusting the pH>7 with NH4OH. Add 1 mL of the cyanogen iodide solution and let stand 1 hour.
  Transfer to a 100-mL volumetric flask and dilute to volume with water.
\32\ Stevens, H.H., Ficke, J. F., and Smoot, G. F., ``Water Temperature--Influential Factors, Field Measurement and Data Presentation,'' Techniques of Water-Resources Investigations of the
  U.S. Geological Survey, Book 1, Chapter D1, 1975.
\33\ Zinc, Zincon Method, Method 8009, Hach Handbook of Water Analysis, 1979, pages 2-231 and 2-333, Hach Chemical Company, Loveland, CO 80537.
\34\ ``Direct Current Plasma (DCP) Optical Emission Spectrometric Method for Trace Elemental Analysis of Water and Wastes, Method AES0029,'' 1986--Revised 1991, Thermo Jarrell Ash Corporation,
  27 Forge Parkway, Franklin, MA 02038
\35\ Precision and recovery statements for the atomic absorption direct aspiration and graphite furnace methods, and for the spectrophotometric SDDC method for arsenic are provided in Appendix
  D of this part titled, ``Precision and Recovery Statements for Methods for Measuring Metals.''
\36\ Microwave-assisted digestion may be employed for this metal, when analyzed by this methodology. ``Closed Vessel Microwave Digestion of Wastewater Samples for Determination of Metals'',
  CEM Corporation, P.O. Box 200, Matthews, NC 28106-0200, April 16, 1992. Available from the CEM Corporation.
\37\ When determining boron and silica, only plastic, PTFE, or quartz laboratory ware may be used from start until completion of analysis.
\38\ Only use n-hexane extraction solvent when determining Oil and Grease parameters--Hexane Extractable Material (HEM), or Silica Gel Treated HEM (analogous to EPA Method 1664A). Use of other
  extraction solvents (e.g., those in the 18th and 19th editions) is prohibited.
\39\ Nitrogen, Total Kjeldahl, Method PAI-DK01 (Block Digestion, Steam Distillation, Titrimetric Detection), revised 12/22/94, OI Analytical/ALPKEM, P.O. Box 9010, College Station, TX 77842.
\40\ Nitrogen, Total Kjeldahl, Method PAI-DK02 (Block Digestion, Steam Distillation, Colorimetric Detection), revised 12/22/94, OI Analytical/ALPKEM, P.O. Box 9010, College Station, TX 77842.
\41\ Nitrogen, Total Kjeldahl, Method PAI-DK03 (Block Digestion, Automated FIA Gas Diffusion), revised 12/22/94, OI Analytical/ALPKEM, P.O. Box 9010, College Station, TX 77842.
\42\ Method 1664, Revision A ``n-Hexane Extractable Material (HEM; Oil and Grease) and Silica Gel Treated n-Hexane Extractable Material (SGT-HEM; Non-polar Material) by Extraction and
  Gravimetry'' EPA-821-R-98-002, February 1999. Available at NTIS, PB-121949, U.S. Department of Commerce, 5285 Port Royal, Springfield, VA 22161.
\43\ USEPA. 2001. Method 1631, Revision E, ``Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry'' September 2002, Office of Water, U.S.
  Environmental Protection Agency (EPA-821-R-02-024). The application of clean techniques described in EPA's draft Method 1669: Sampling Ambient Water for Trace Metals at EPA Water Quality
  Criteria Levels (EPA-821-R-96-011) are recommended to preclude contamination at low-level, trace metal determinations.
\44\ Available Cyanide, Method OIA-1677, ``Available Cyanide by Flow Injection, Ligand Exchange, and Amperometry,'' ALPKEM, A Division of OI Analytical, P.O. Box 9010, College Station, TX
  77842-9010.
\45\ ``Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory--Determination of Ammonia Plus Organic Nitrogen by a Kjeldahl Digestion Method,'' Open File Report
  (OFR) 00-170.
\46\ ``Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory--Determination of Chromium in Water by Graphite Furnace Atomic Absorption Spectrophotometry,'' Open
  File Report (OFR) 93-449.
\47\ ``Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory--Determination of Molybdenum by Graphite Furnace Atomic Absorption Spectrophotometry,'' Open File
  Report (OFR) 97-198.
\48\ ``Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory--Determination of Total Phosphorus by Kjeldahl Digestion Method and an Automated Colorimetric Finish
  That Includes Dialysis'' Open File Report (OFR) 92-146.
\49\ ``Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory--Determination of Arsenic and Selenium in Water and Sediment by Graphite Furnace-Atomic Absorption
  Spectrometry'' Open File Report (OFR) 98-639.
\50\ ``Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory--Determination of Elements in Whole-water Digests Using Inductively Coupled Plasma-Optical Emission
  Spectrometry and Inductively Coupled Plasma-Mass Spectrometry,'' Open File Report (OFR) 98-165.
\51\ ``Methods of 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 (OFR) 93-125.
\52\ All EPA methods, excluding EPA Method 300.1, are published in ``Methods for the Determination of Metals in Environmental Samples,'' Supplement I, National Exposure Risk Laboratory-
  Cincinnati (NERL-CI), EPA/600/R-94/111, May 1994; and ``Methods for the Determination of Inorganic Substances in Environmental Samples,'' NERL-CI, EPA/600/R-93/100, August, 1993. EPA Method
  300.1 is available from http://www.epa.gov/safewater/methods/pdfs/met300.pdf.

\53\ Styrene divinyl benzene beads (e.g. AMCO-AEPA-1 or equivalent) and stabilized formazin (e.g., Hach StablCalTM or equivalent) are acceptable substitutes for formazin.
\54\ 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.
\55\ Kelada-01, ``Kelada Automated Test Methods for Total Cyanide, Acid Dissociable Cyanide, and Thiocyanate,'' EPA 821-B-01-009, Revision 1.2, August 2001, National Technical Information
  Service (NTIS), 5285 Port Royal Road, Springfield, VA 22161 [Order Number PB 2001-108275]. The toll free telephone number is:<PHONE_NUMBER>. 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.
\56\ 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'' is
  available from Lachat Instruments 6645 W. Mill Road, Milwaukee, WI 53218, Telephone:<PHONE_NUMBER>.
\57\ When using sulfide removal test procedures described in Method 335.4, reconstitute particulate that is filtered with the sample prior to distillation.
\58\ Unless otherwise stated, if the language of this table specifies a sample digestion and/or distillation ``followed by'' analysis with a method, approved digestion and/or distillation are
  required prior to analysis.
\59\ Method 245.7, Rev. 2.0, ``Mercury in Water by Cold Vapor Atomic Fluorescence Spectrometry,'' February 2005, EPA-821-R-05-001, available from the U.S. EPA Sample Control Center (operated
  by CSC), 6101 Stevenson Avenue, Alexandria, VA 22304, Telephone:<PHONE_NUMBER>, Fax:<PHONE_NUMBER>.

\60\ The use of EDTA may decrease method sensitivity in some samples. Analysts may omit EDTA provided that all method specified quality control acceptance criteria are met.
\61\ Samples analyzed for available cyanide using Methods OIA-1677 or D6888-04 that contain particulate matter may be filtered only after the ligand exchange reagents have been added to the
  samples, because the ligand exchange process converts complexes containing available cyanide to free cyanide, which is not removed by filtration. Analysts are further cautioned to limit the
  time between the addition of the ligand exchange reagents and sample analysis to no more than 30 minutes to preclude settling of materials in samples.

                                                         Table IC.--List of Approved Test Procedures for Non-Pesticide Organic Compounds
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                 EPA method number \2,\ \7\                                                       Other approved methods
                                  --------------------------------------------------------------------------------------------------------------------------------------------------------------
          Parameter \1\                                                                       Standard Methods
                                         GC                GC/MS               HPLC             [Edition(s)]        Standard Methods  Online            ASTM                      Other
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Acenaphthene..................             610  625, 1625B...........             610  6440 B [18th, 19th,       ........................  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                20th].
2. Acenaphthylene................             610  625, 1625B...........             610  6410 B, 6440 B, [18th,    6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
3. Acrolein......................             603  624 \4\, 1624B.......
4. Acrylonitrile.................             603  624 \4\, 1624B.......
5. Anthracene....................             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
6. Benzene.......................             602  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th,19th], 6200 C
                                                                                [20th] and 6220 B
                                                                                [18th,19th].
7. Benzidine.....................  ..............  625 \5\, 1625B.......             605  ........................  ........................  ........................  See footnote \3\, p.1
8. Benzo(a)anthracene............             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
9. Benzo(a)pyrene................             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
10. Benzo(b)fluoranthene.........             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
11. Benzo(g,h,i) perylene........             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
12. Benzo(k) fluoranthene........             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
13. Benzyl chloride..............  ..............  .....................  ..............  ........................  ........................  ........................  See footnote \3\, p.
                                                                                130: See footnote \6\,
                                                                                p. S102
14. Benzyl butyl phthalate.......             606  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
15. Bis(2-chloroethoxy) methane..             611  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
16. Bis(2-chloroethyl) ether.....             611  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
17. Bis(2-ethylhexyl) phthalate..             606  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
18. Bromodichloro-methane........             601  624, 1624B...........  ..............  6200 C [20th] and 6230 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 B
                                                                                [20th] and 6210 B
                                                                                [18th, 19th].
19. Bromoform....................             601  624, 1624B...........  ..............  6200 C [20th] and 6230 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 B
                                                                                [20th] and 6210 B
                                                                                [18th, 19th].
20. Bromomethane.................             601  624, 1624B...........  ..............  6200 C [20th] and 6230 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 B
                                                                                [20th] and 6210 B
                                                                                [18th, 19th].
21. 4-Bromophenyl phenyl ether...             611  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
22. Carbon tetrachloride.........             601  624, 1624B...........  ..............  6200 C [20th] and 6230 B  6200 C-97...............  ........................  See footnote \3\, p. 130
                                                                                [18th, 19th].
23. 4-Chloro-3-methyl phenol.....             604  625, 1625B...........  ..............  6410 B, 6420 B [18th,     6410 B-00, 6420 B-00....  ........................  See footnote \9\, p. 27
                                                                                19th, 20th].
24. Chlorobenzene................        601, 602  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........  ........................  See footnote \3\, p. 130
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6220 B
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
25. Chloroethane.................             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
26. 2-Chloroethylvinyl ether.....             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].

27. Chloroform...................             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........  ........................  See footnote \3\, p. 130
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
28. Chloromethane................             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th] 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
29. 2-Chloronaph-thalene.........             612  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
30. 2-Chlorophenol...............             604  625, 1625B...........  ..............  6410 B, 6420 B [18th,     6410 B(00, 6420 B-00....  ........................  See footnote \9\, p. 27
                                                                                19th, 20th].
31. 4-Chlorophenyl phenyl ether..             611  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
32. Chrysene.....................             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
33. Dibenzo(a,h)an-thracene......             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
34. Dibromochloro-methane........             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th] 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
35. 1,2-Dichloro-benzene.........        601, 602  624, 1625B...........  ..............  6200 C [20th] and 6220 B  6200 C-97...............  ........................  See footnote \9\, p. 27
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
36. 1,3-Dichloro-benzene.........        601, 602  624, 1625B...........  ..............  6200 C [20th] and 6220 B  6200 C-97...............  ........................  See footnote \9\, p. 27
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
37. 1,4-Dichloro-benzene.........        601, 602  624, 1625B...........  ..............  6200 C [20th] and 6220 B  6200 C-97...............  ........................  See footnote \9\, p. 27
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
38. 3,3-Dichloro-benzidine.......  ..............  625, 1625B...........             605  6410 B [18th, 19th,       6410 B-00...............
                                                                                20th].
39. Dichlorodifluoro-methane.....             601  .....................  ..............  6200 C [20th] and 6230 B  6200 C-97...............
                                                                                [18th, 19th].
40. 1,1-Dichloroethane...........             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
41. 1,2-Dichloroethane...........             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
42. 1,1-Dichloroethene...........             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
43. trans-1,2-Dichloro-ethene....             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
44. 2,4-Dichlorophenol...........             604  625, 1625B...........  ..............  6410 B, 6420 B [18th,     6410 B-00, 6420 B-00....  ........................  See footnote \9\, p. 27
                                                                                19th, 20th].
45. 1,2-Dichloro-propane.........             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
46. cis-1,3-Dichloro-propene.....             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].

47. trans-1,3-Dichloro-propene...             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
48. Diethyl phthalate............             606  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
49. 2,4-Dimethylphenol...........             604  625, 1625B...........  ..............  6410 B, 6420 B [18th,     6410 B-00, 6420 B-00....  ........................  See footnote \9\, p. 27
                                                                                19th, 20th].
50. Dimethyl phthalate...........             606  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
51. Di-n-butyl phthalate.........             606  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
52. Di-n-octyl phthalate.........             606  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
53. 2,3-Dinitrophenol............             604  625, 1625B...........  ..............  6410 B, 6420 B [18th,     6410 B-00, 6420 B-00....  ........................  ........................
                                                                                19th, 20th].
54. 2,4-Dinitrotoluene...........             609  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
55. 2,6-Dinitrotoluene...........             609  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
56. Epichlorohydrin..............  ..............  .....................  ..............  ........................  ........................  ........................  See footnote \3\, p.
                                                                                130; See footnote \6\,
                                                                                p. S102
57. Ethylbenzene.................             602  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........  ........................  ........................
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6220 B
                                                                                [18th, 19th].
58. Fluoranthene.................             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
59. Fluorene.....................             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
60. 1,2,3,4,6,7,8-Heptachloro-     ..............  1613B \10\...........
 dibenzofuran.
61. 1,2,3,4,7,8,9-Heptachloro-     ..............  1613B \10\...........
 dibenzofuran.
62. 1,2,3,4,6,7,8-                 ..............  1613B \10\...........
 Heptachlorodibenzo-p-dioxin.
63. Hexachlorobenzene............             612  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
64. Hexachloro-butadiene.........             612  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
65. Hexachlorocyclo-pentadiene...             612  625 \5\, 1625B.......  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
66. 1,2,3,4,7,8-                   ..............  1613B \10\...........
 Hexachlorodibenzofuran.
67. 1,2,3,6,7,8-                   ..............  1613B \10\...........
 Hexachlorodibenzofuran.
68. 1,2,3,7,8,9-                   ..............  1613B \10\...........
 Hexachlorodibenzofuran.
69. 2,3,4,6,7,8-                   ..............  1613B \10\...........
 Hexachlorodibenzofuran.
70. 1,2,3,4,7,8-Hexachlorodibenzo- ..............  1613B \10\...........
 p-dioxin.
71. 1,2,3,6,7,8-Hexachlorodibenzo- ..............  1613B \10\...........
 p-dioxin.
72. 1,2,3,7,8,9-Hexachlorodibenzo- ..............  1613B \10\...........
 p-dioxin 1613B \10\.
73. Hexachloroethane.............             612  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
74. Ideno(1,2,3-cd) pyrene.......             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
75. Isophorone...................             609  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
76. Methylene chloride...........             601  624, 1624B...........  ..............  6200 C [20th] and 6230 B  6200 C-97...............  ........................  See footnote \3\, p. 130
                                                                                [18th, 19th].
77. 2-Methyl-4,6-dinitrophenol...             604  625, 1625B...........  ..............  6410 B, 6420 B [18th,     6410 B-00, 6420 B-00....  ........................  See footnote \9\, p. 27
                                                                                19th, 20th].
78. Naphthalene..................             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                19th, 20th].

79. Nitrobenzene.................             609  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                20th].
80. 2-Nitrophenol................             604  625, 1625B...........  ..............  6410 B, 6420 B [18th,     6410 B-00, 6420 B-00....  ........................  See footnote \9\, p. 27
                                                                                19th, 20th].
81. 4-Nitrophenol................             604  625, 1625B...........  ..............  6410 B, 6420 B [18th,     6410 B-00, 6420 B-00....  ........................  See footnote \9\, p. 27
                                                                                19th, 20th].
82. N-Nitrosodimethylamine.......             607  6255, 1625B..........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
83. N-Nitrosodi-n-propylamine....             607  6255, 1625B..........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
84. N-Nitrosodiphenylamine.......             607  6255, 1625B..........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \9\, p. 27
                                                                                20th].
85. Octachlorodibenzofuran.......  ..............  1613B \10\*..........
86. Octachlorodibenzo-p-dioxin...  ..............  1613B \10\...........
87. 2,2'-Oxybis(2-chloropropane)              611  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............
 [also known as bis(2-                                                                     20th].
 chloroisopropyl) ether].
88. PCB-1016.....................             608  625..................  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \3\, p. 43;
                                                                                20th].                                                                        See footnote \8\
89. PCB-1221.....................             608  625..................  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \3\, p. 43;
                                                                                20th].                                                                        See footnote \8\
90. PCB-1232.....................             608  625..................  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \3\, p. 43;
                                                                                20th].                                                                        See footnote \8\
91. PCB-1242.....................             608  625..................  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \3\, p. 43;
                                                                                20th].                                                                        See footnote \8\
92. PCB-1248.....................             608  625..................
93. PCB-1254.....................             608  625..................  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \3\, p. 43;
                                                                                20th].                                                                        See footnote \8\
94. PCB-1260.....................             608  625..................  ..............  6410 B, 6630 B [18th,     6410 B-00...............  ........................  See footnote 3, p. 43;
                                                                                19th, 20th].                                                                  See footnote 8
95. 1,2,3,7,8-Pentachloro-         ..............  1613B\10\............
 dibenzofuran.
96. 2,3,4,7,8-Pentachloro-         ..............  1613B\10\............
 dibenzofuran.
97. 1,2,3,7,8,-Pentachlorodibenzo- ..............  1613B\10\............
 p-dioxin.
98. Pentachlorophenol............             604  625, 1625B...........  ..............  6410 B, 6630 B [18th,     6410 B-00...............  ........................  See footnote \3\, p.
                                                                                19th, 20th].                                                                  140; See footnote \9\,
                                                                                p. 27
99. Phenanthrene.................             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
100. Phenol......................             604  625, 1625B...........  ..............  6410 B, 6420 B [18th,     6410 B-00, 6420 B-00....  ........................  See footnote \9\, p. 27
                                                                                19th, 20th].
101. Pyrene......................             610  625, 1625B...........             610  6410 B, 6440 B [18th,     6410 B-00...............  D4657-92 (99)...........  See footnote \9\, p. 27
                                                                                19th, 20th].
102. 2,3,7,8-Tetra-                ..............  1613B10..............
 chlorodibenzofuran.
103. 2,3,7,8-Tetra-chlorodibenzo-  ..............  613, 625 \5a\, 1613B
 p-dioxin.                                          \10\.
104. 1,1,2,2-Tetra-chloro ethane.             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........  ........................  See footnote \3\, p. 130
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
105. Tetrachloroethene...........             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........  ........................  See footnote \3\, p. 130
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
106. Toluene.....................             602  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6220 B
                                                                                [18th, 19th].
107. 1,2,4-Trichloro-benzene.....             612  625, 1625B...........  ..............  6410 B [18th, 19th,       6410 B-00...............  ........................  See footnote \3\, p.
                                                                                20th].                                                                        130; See footnote \9\,
                                                                                p. 27

108. 1,1,1-Trichloro-ethane......             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
109. 1,1,2-Trichloro-ethane......             601  624, 1624B...........   6200 B [20th]  6200 B and C-97.........  ........................  See footnote \3\, p. 130
                                                                              and 6210 B
                                                                           [18th, 19th],
                                                                           6200 C [20th]
                                                                              and 6230 B
                                                                            [18th, 19th]
110. Trichloroethene.............             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
111. Trichlorofluoro-methane.....             601  624..................  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], 6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
112. 2,4,6-Trichlorophenol.......             604  625, 1625B...........  ..............  6410 B, 6420 B [18th,     6410 B-00, 6420 B-00....  ........................  See footnote \9\, p. 27
                                                                                19th, 20th].
113. Vinyl chloride..............             601  624, 1624B...........  ..............  6200 B [20th] and 6210 B  6200 B and C-97.........
                                                                                [18th, 19th], >6200 C
                                                                                [20th] and 6230 B
                                                                                [18th, 19th].
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ All parameters are expressed in micrograms per liter ([mu]g/L) except for Method 1613B in which the parameters are expressed in picograms per liter (pg/L).
\2\ The full text of Methods 601-613, 624, 625, 1624B, and 1625B, are given at Appendix A, ``Test Procedures for Analysis of Organic Pollutants,'' of this Part 136. The full text of Method
  1613B is incorporated by reference into this Part 136 and is available from the National Technical Information Services as stock number PB95-104774. The standardized test procedure to be
  used to determine the method detection limit (MDL) for these test procedures is given at Appendix B, ``Definition and Procedure for the Determination of the Method Detection Limit,'' of this
  Part 136.
\3\ ``Methods for Benzidine: Chlorinated Organic Compounds, Pentachlorophenol and Pesticides in Water and Wastewater,'' U.S. Environmental Protection Agency, September, 1978.
\4\ Method 624 may be extended to screen samples for Acrolein and Acrylonitrile. However, when they are known to be present, the preferred method for these two compounds is Method 603 or
  Method 1624B.
\5\ Method 625 may be extended to include benzidine, hexachlorocyclopentadiene, N-nitrosodimethylamine, and N-nitrosodiphenylamine. However, when they are known to be present, Methods 605,
  607, and 612, or Method 1625B, are preferred methods for these compounds.
\5a\ 625, screening only.
\6\ ``Selected Analytical Methods Approved and Cited by the United States Environmental Protection Agency,'' Supplement to the Fifteenth Edition of Standard Methods for the Examination of
  Water and Wastewater (1981).
\7\ Each analyst must make an initial, one-time demonstration of their ability to generate acceptable precision and accuracy with Methods 601-603, 624, 625, 1624B, and 1625B (See Appendix A of
  this Part 136) in accordance with procedures each in Section 8.2 of each of these methods. Additionally, each laboratory, on an on-going basis must spike and analyze 10% (5% for methods 624
  and 625 and 100% for methods 1624B and 1625B) of all samples to monitor and evaluate laboratory data quality in accordance with Sections 8.3 and 8.4 of these methods. When the recovery of
  any parameter falls outside the warning limits, the analytical results for that parameter in the unspiked sample are suspect. The results should be reported, but cannot be used to
  demonstrate regulatory compliance. These quality control requirements also apply to the Standard Methods, ASTM Methods, and other methods cited.
\8\ ``Organochlorine Pesticides and PCBs in Wastewater Using EmporeTM Disk'' 3M Corporation Revised 10/28/94.
\9\ USGS Method 0-3116-87 from ``Methods of Analysis by U.S. Geological Survey National Water Quality Laboratory--Determination of Inorganic and Organic Constituents in Water and Fluvial
  Sediments,'' U.S. Geological Survey, Open File Report 93-125.
\10\ Analysts may use Fluid Management Systems, Inc. PowerPrep system in place of manual cleanup provided that the analysis meet the requirements of Method 1613B (as specified in Section 9 of
  the method) and permitting authorities.

                                                                 Table ID.--List of Approved Test Procedures for Pesticides \1\
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                           EPA \2,\    Standard Methods 18th,
            Parameter                     Method             \7\           19th, 20th Ed.       Standard Methods  Online            ASTM                                Other
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Aldrin........................  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \4\, p.
                                                                                D5812-96 (2002).........   27; See footnote \8\
                                   GC/MS...............          625  6410 B..................  6410 B-00...............
2. Ametryn.......................  GC..................  ...........  ........................  ........................  ........................  See footnote \3\, p. 83; See footnote \6\, p
                                                                                S68
3. Aminocarb.....................  TLC.................  ...........  ........................  ........................  ........................  See footnote \3\, p. 94; See footnote \6\,
                                                                                p. S16
4. Atraton.......................  GC..................  ...........  ........................  ........................  ........................  See footnote \3\, p. 83; See footnote \6\,
                                                                                p. S68
5. Atrazine......................  GC..................  ...........  ........................  ........................  ........................  See footnote \3\, p. 83; See footnote \6\,
                                                                                p. S68; See footnote \9\
6. Azinphos methyl...............  GC..................  ...........  ........................  ........................  ........................  See footnote \3\, p. 25; See footnote \6\,
                                                                                p. S51
7. Barban........................  TLC.................  ...........  ........................  ........................  ........................  See footnote \3\, p. 104; See footnote \6\,
                                                                                p. S64
8. [alpha]-BHC...................  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \8\
                                                                                D5812-96(02)............
                                   GC/MS...............      625 \5\  6410 B..................  6410 B-00...............
9. [beta]-BHC....................  GC..................          608  6630 C..................  ........................  D3086-90,...............  See footnote \8\
                                                                                D5812-96(02)............
                                   GC/MS...............      625 \5\  6410 B..................  6410 B-00...............

10. [delta]-BHC..................  GC..................          608  6630 C..................  ........................  D3086-90,...............  See footnote \8\
                                                                                D5812-96(02)............
                                   GC/MS...............      625 \5\  6410 B..................  6410 B-00...............
11. [gamma]-BHC (Lindane)........  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \4\, p.
                                                                                D5812-96(02)............   27; See footnote \8\
                                   GC/MS...............          625  6410 B..................  6410 B-00...............
                                   ....................
12. Captan.......................  GC..................  ...........  6630 B..................  ........................  D3086-90,...............  See footnote \3\, p. 7
                                                                                D5812-96(02)............
13. Carbaryl.....................  TLC.................  ...........  ........................  ........................  ........................  See footnote \3\, p. 94, See footnote \6\,
                                                                                p. S60
14. Carbo-phenothion.............  GC..................  ...........  ........................  ........................  ........................  See footnote \4\, p. 27; See footnote \6\,
                                                                                p. S73
15. Chlordane....................  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \4\, p.
                                                                                D5812-96(02)............   27; See footnote \8\
                                   GC/MS...............          625  6410 B..................  6410 B-00...............
16. Chloro-propham...............  TLC.................  ...........  ........................  ........................  ........................  See footnote \3\, p. 104; See footnote \6\,
                                                                                p. S64.
17. 2,4-D........................  GC..................  ...........  6640 B..................  ........................  ........................  See footnote \3\, p. 115; See footnote \4\,
                                                                                p. 40
18. 4,4'-DDD.....................  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \4\, p.
                                                                                D5812-96(02)............   27; See footnote \8\
                                   GC/MS...............          625  6410 B..................  6410 B-00...............
19. 4,4'-DDE.....................  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \4\, p.
                                                                                D5812-96(02)............   27; See footnote \8\
                                   GC/MS...............          625  6410 B..................  6410 B-00...............
20. 4,4'-DDT.....................  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \4\, p.
                                                                                D5812-96(02)............   27; See footnote \8\
                                   GC/MS...............          625  6410 B..................  6410 B-00...............
21. Demeton-O....................  GC..................  ...........  ........................  ........................  ........................  See footnote \3\, p. 25; See footnote \6\,
                                                                                p. S51
22. Demeton-S....................  GC..................  ...........  ........................  ........................  ........................  See footnote \3\, p. 25; See footnote \6\,
                                                                                p. S51
23. Diazinon.....................  GC..................  ...........  ........................  ........................  ........................  See footnote \3\, p. 25; See footnote \4\,
                                                                                p. 27; See footnote \6\, p. S51
24. Dicamba......................  GC..................  ...........  ........................  ........................  ........................  See footnote \3\, p. 115
25. Dichlofen-thion..............  GC..................  ...........  ........................  ........................  ........................  See footnote \4\, p. 27; See footnote \6\,
                                                                                p. S73
26. Dichloran....................  GC..................  ...........  6630 B & C..............  ........................  ........................  See footnote \3\, p. 7
27. Dicofol......................  GC..................  ...........  ........................  ........................  D3086-90,...............
                                                                                D5812-96(02)............
28. Dieldrin.....................  GC..................          608  6630 B & C..............  ........................  ........................  See footnote \3\, p. 7; See footnote \4\, p.
                                                                                27; See footnote \8\
                                   GC/MS...............          625  6410 B..................  6410 B-00...............
29. Dioxathion...................  GC..................  ...........  ........................  ........................  ........................  See footnote \4\, p. 27; See footnote \6\,
                                                                                p. S73
30. Disulfoton...................  GC..................  ...........  ........................  ........................  ........................  See footnote \3\, p. 25; See footnote \6\,
                                                                                p. S51
31. Diuron.......................  TLC.................  ...........  ........................  ........................  ........................  See footnote \3\, p. 104; See footnote \6\,
                                                                                p. S64
32. Endosulfan I.................  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \4\, p.
                                                                                D5812-96(02)............   27; See footnote \8\
                                   GC/MS...............      625 \5\  6410 B..................  6410 B-00...............
33. Endosulfan II................  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \8\
                                                                                D5812-96(02)............
                                   GC/MS...............      625 \5\  6410 B..................  6410 B-00...............
34. Endosulfan Sulfate...........  GC..................          608  6630 C..................  ........................  ........................  See footnote \8\
                                   GC/MS...............          625  6410 B..................  6410 B-00...............
35. Endrin.......................  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \4\, p.
                                                                                D5812-96(02)............   27; See footnote \8\
                                   GC/MS...............      625 \5\  6410 B..................  6410 B-00...............
36. Endrin aldehyde..............  GC..................          608  ........................  ........................  ........................  See footnote \8\
                                   GC/MS...............          625
37. Ethion.......................  GC..................  ...........  ........................  ........................  ........................  See footnote \4\, p. 27; See footnote \6\,
                                                                                p. S73
38. Fenuron......................  TLC.................  ...........  ........................  ........................  ........................  See footnote \3\, p. 104; See footnote \6\,
                                                                                p. S64
39. Fenuron-TCA..................  TLC.................  ...........  ........................  ........................  ........................  See footnote \3\, p. 104; See footnote \6\,
                                                                                p. S64
40. Heptachlor...................  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \4\, p.
                                   GC/MS...............          625  6410 B..................  6410 B-00...............  D5812-96(02)............   27; See footnote \8\
41. Heptachlor epoxide...........  GC..................          608  6630 B & C..............  ........................  D3086-90,...............  See footnote \3\, p. 7; See footnote \4\, p.
                                   GC/MS...............          625  6410 B..................  6410 B-00...............  D5812- 96(02)...........   27; See footnote \6\, p. S73; See footnote
                                                                                \8\
42. Isodrin......................  GC..................  ...........  ........................  ........................  ........................  See footnote \4\, p. 27; See footnote \6\,
                                                                                p. S73
43. Linuron......................  GC..................  ...........  ........................  ........................  ........................  See footnote \3\, p. 104; See footnote \6\,
                                                                                p. S64
44. Malathion....................  GC..................  ...........  6630 C..................  ........................  ........................  See footnote \3\, p. 25; See footnote \4\,
                                                                                p. 27; See footnote \6\, p. S51

45. Methiocarb...................  TLC.................  ...........  ........................  ........................  ........................  See footnote \3\, p. 94; See footnote \6\,
                                                                                p. S60
46. Methoxy-chlor................  GC..................  ...........  6630 B & C..............  ........................  D3086-90, D5812-96(02)..  See footnote \3\, p. 7; See footnote \4\, p.
                                                                                27; See footnote \8\
47. Mexacar-bate.................  TLC.................  ...........  ........................  ........................  ........................  See footnote \3\, p. 94; See footnote \6\,
                                                                                p.S60
48. Mirex........................  GC..................  ...........  6630 B & C..............  ........................  ........................  See footnote \3\, p. 7; See footnote \4\, p.
                                                                                27