
[Federal Register: December 2, 2009 (Volume 74, Number 230)]
[Rules and Regulations]               
[Page 63069-63070]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr02de09-4]                         


ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 141

[EPA-HQ-OW-2009-0707; FRL-8979-5]

 
 Expedited Approval of Alternative Test Procedures for the 
Analysis of Contaminants Under the Safe Drinking Water Act; Analysis 
and Sampling Procedures

Correction

    In rule document E9-27044 beginning on page 57908 in the issue of 
November 10, 2009, make the following correction:
    1. On page 57915, the second table should appear as follows:

                                       Alternative Testing Methods for Contaminants Listed at 40 CFR 141.21(f)(6)
--------------------------------------------------------------------------------------------------------------------------------------------------------
           Organism                Methodology      SM 20th  edition \6\    SM 21st  edition \1\        SM online \3\                  Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
E. coli.......................  ONPG-MUG Test....  9223 B                  9223 B                  9223 B-97               .............................
                                                                                                                           Modified Colitag \TM\ \13\
--------------------------------------------------------------------------------------------------------------------------------------------------------

    2. On page 57917, the first table should appear as follows:

[[Page 63070]]



                                       Alternative Testing Methods for Contaminants Listed at 40 CFR 141.131(b)(1)
--------------------------------------------------------------------------------------------------------------------------------------------------------
            Contaminant                    Methodology                EPA method                   ASTM \4\                   SM 21st edition \1\
--------------------------------------------------------------------------------------------------------------------------------------------------------

                                                                       * * * * * *
HAA5...............................  LLE (diazomethane)/GC/  ...........................  ..........................  6251 B
                                      ECD.
                                     Ion Chromatography      557 \14\                     ..........................  ..................................
                                      Electrospray
                                      Ionization Tandem
                                      Mass Spectrometry (IC-
                                      ESI-MS/MS).
Bromate............................  Two-Dimensional Ion     302.0 \18\                   ..........................  ..................................
                                      Chromatography (IC).
                                     Ion Chromatography      557 \14\                     ..........................  ..................................
                                      Electrospray
                                      Ionization Tandem
                                      Mass Spectrometry (IC-
                                      ESI-MS/MS).
                                     Chemically Suppressed   ...........................  D 6581-08 A                 ..................................
                                      Ion Chromatography.
                                     Electrolytically        ...........................  D 6581-08 B                 ..................................
                                      Suppressed Ion
                                      Chromatography.
Chlorite...........................  Chemically Suppressed   ...........................  D 6581-08 A                 ..................................
                                      Ion Chromatography.
                                     Electrolytically        ...........................  D 6581-08 B                 ..................................
                                      Suppressed Ion
                                      Chromatography.
--------------------------------------------------------------------------------------------------------------------------------------------------------

    3. On page 57917, the fourth table heading, Alternative Testing 
Methods With MRL > 0.0010 mg/L for Monitoring Listed at 40 CFR 
141.132(b)(3)(ii)(B) should read Alternative Testing Methods With MRL 
<= 0.0010 mg/L for Monitoring Listed at 40 CFR 141.132(b)(3)(ii)(B).
    4. On page 57918, the table should appear as follows:

                                         Alternative Testing Methods for Contaminants Listed at 40 CFR 143.4(b)
--------------------------------------------------------------------------------------------------------------------------------------------------------
       Contaminant            Methodology             EPA Method                 ASTM \4\            SM 21st  edition \1\           SM Online \3\
--------------------------------------------------------------------------------------------------------------------------------------------------------

                                                                      * * * * * * *
Sulfate.................  Ion Chromatography.  ........................  ........................  4110 B                    ...........................
                          Gravimetric with     ........................  ........................  4500-SO4-2 C              4500-SO4-2 C-97
                           ignition of
                           residue.
                          Gravimetric with     ........................  ........................  4500-SO4-2 D              4500-SO4-2 D-97
                           drying of residue.
                          Turbidimetric        ........................  D 516-07                  4500-SO4-2 E              4500-SO4-2 E-97
                           method.
                          Automated            ........................  ........................  4500-SO4-2 F              4500-SO4-2 F-97
                           methylthymol blue
                           method.

                                                                      * * * * * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------


[FR Doc. Z9-27044 Filed 12-1-09; 8:45 am]

BILLING CODE 1505-01-D
