Skip to content
LexBuild

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

---
identifier: "/us/fr/C1-2024-01530"
source: "fr"
legal_status: "authoritative_unofficial"
title: "Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures"
title_number: 0
title_name: "Federal Register"
section_number: "C1-2024-01530"
section_name: "Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures"
positive_law: false
currency: "2024-02-05"
last_updated: "2024-02-05"
format_version: "1.1.0"
generator: "[email protected]"
agency: "Environmental Protection Agency"
document_number: "C1-2024-01530"
document_type: "rule"
publication_date: "2024-02-05"
agencies:
  - "Environmental Protection Agency"
cfr_references:
  - "40 CFR Part 141"
fr_citation: "89 FR 7624"
fr_volume: 89
docket_ids:
  - "EPA-HQ-OW-2023-0541"
  - "FRL-11620-01-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 2024-1530 beginning on page 5773 in the issue of Tuesday, January 30, 2024, make the following corrections:

1. On page 5790, table “Alternative Testing Methods for Disinfectant Residuals Listed at 40 CFR 141.131(c)(1)” should have the column headings:

|  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- |
| Residual | Methodology | SM 21st edition | SM 22nd edition, | ASTM | Other |

2. On the same page, table “Alternative Testing Methods for Parameters Listed at 40 CFR 141.131(d)” should have column headings that appear as follows:

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Parameter | Methodology | SM 21st edition | SM 22nd edition | SM 23rd edition, | SM online | EPA | Other |

3. On the same page, table “Alternative Testing Methods for Contaminants Listed at 40 CFR 141.402(c)(2)” should have column headings that appear as follows:

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Organism | Methodology | SM 20th edition | SM 21st edition | SM 22nd edition | SM 23rd edition, | SM online | Other |

4. On the same page, table “Alternative Testing Methods for Contaminants Listed at 40 CFR 141.852(a)(5)” should have column headings that appear as follows:

|  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- |
| Organism | Methodology | Method | SM 20th, | SM 22nd edition | SM 23rd edition, | SM online |

5. On page 5792, table “Alternative Testing Methods for Contaminants Listed at 40 CFR 143.4(b)” should have column headings that appear as follows:

|  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- |
| Contaminant | Methodology | EPA method | ASTM | SM 21st edition | SM 22nd edition, | SM online |

6. On the same page, table “Alternative Testing Methods for Contaminants Listed at 40 CFR 143.4(b), the entry for Chloride should read as follows:

|  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- |
| Chloride | Silver Nitrate Titration |  | D 512-04 B, 12 B | 4500-Cl
                            
                            B | 4500-Cl
                            
                            B |  |
|  | Ion Chromatography |  | D 4327-11, -17 | 4110 B | 4110 B |  |
|  | Potentiometric Titration |  |  | 4500-Cl
                            
                            D | 4500-Cl
                            
                            D |  |

7. On the same page, in the same table, the entry for Sulfate should read as follows:

|  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- |
| Sulfate | Ion chromatography |  | D 4327-11, -17 | 4110 B | 4110 B |  |
|  | Gravimetric with ignition of residue |  |  | 4500-SO
                            
                            
                             C | 4500-SO
                            
                            
                             C | 4500-SO
                            
                            
                             C-97. |
|  | Gravimetric with drying of residue |  |  | 4500-SO
                            
                            
                             D | 4500-SO
                            
                            
                             D | 4500-SO
                            
                            
                             D-97. |
|  | Turbidimetric method |  | D 516-07, 11, 16 | 4500-SO
                            
                            
                             E | 4500-SO
                            
                            
                             E | 4500-SO
                            
                            
                             E-97. |
|  | Automated methylthymol blue method |  |  | 4500-SO
                            
                            
                             F | 4500-SO
                            
                            
                             F | 4500-SO
                            
                            
                             F-97. |