Document ID: EPA-HQ-OW-2018-0558-0083
Agency: epa
Document Type: Rule
Title: Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures
Posted Date: 2018-10-31T04:00Z

[Federal Register Volume 83, Number 211 (Wednesday, October 31, 2018)]
[Rules and Regulations]
[Page 54676]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: C1-2018-22162]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 141

[EPA-HQ-OW-2018-0558; FRL-9985-19-OW]

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 2018-22162, appearing on pages 51636 through 
51652, in the issue of Friday, October 12, 2018, make the following 
corrections:
    1. On page 51646, in the table labelled ``ALTERNATIVE TESTING 
METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.24(e)(1),'' for the 
Contaminant ``Atrazine'' and the Methodology ``Solid Phase Extraction/
Gas Chromatography/Mass Spectrometry (GC/MS),'' the EPA Method should 
read ``525.3 \24\, 523 \26\'' and the SM 21st edition \1\ should be 
blank.
    2. On page 51647, in the table labelled ``ALTERNATIVE TESTING 
METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.24(e)(1)--Continued,'' 
for the Contaminant ``Simazine'' and the Methodology ``Solid Phase 
Extraction/Gas Chromatography/Mass Spectrometry (GC/MS),'' the EPA 
Method should read ``525.3 \24\, 523 \26\'' and the SM 21st edition \1\ 
should be blank.
    3. On the same page, in the same table, for the Contaminant ``Total 
Trihalomethanes'' and the Methodology ``Purge &Trap/Gas Chromatography/
Mass Spectrometry,'' the EPA Method should read ``524.3 \9\, 524.4 
\29\'' and the SM 21st edition \1\ should be blank.
    4. On page 51649, in the table labelled ``ALTERNATIVE TESTING 
METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.131(b)(1)--Continued,'' 
the second Contaminant should read ``Chlorite--daily monitoring as 
prescribed in 40 CFR 141.132(b)(2)(i)(A)''.
    5. On the same page, in the same table, on the same row, the 
Methodology should read ``Amperometric Titration'' and the EPA Method 
should be blank.
    6. On page 51650, in the table labelled ``ALTERNATIVE TESTING 
METHODS FOR CONTAMINANTS LISTED AT 40 CFR 143.4(b),'' for the 
Contaminant ``Chloride'' and the Methodology ``Silver Nitrate 
Titration,'' the SM 21st edition \1\ should read ``4500-Cl- 
B''.
    7. On the same page, in the same table, on the same row, the SM 
22nd edition,\28\ SM 23rd edition \49\ should read ``4500-
Cl- B''.

[FR Doc. C1-2018-22162 Filed 10-30-18; 8:45 am]
 BILLING CODE 1301-00-D