PFAS National Primary Drinking Water Regulation Rulemaking (Final Rule)
New collection (Request for a new OMB Control Number)
No
Regular
11/15/2024
Requested
Previously Approved
36 Months From Approved
685,775
0
2,891,000
0
0
0
The EPA is finalizing National Primary Drinking Water Regulations for six per- and polyfluoroalkyl substances (PFAS) including perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid (PFHxS), perfluorononanoic acid (PFNA), hexafluoropropylene oxide dimer acid (HFPO-DA, commonly known as GenX Chemicals), and perfluorobutane sulfonic acid (PFBS). The EPA is finalizing Maximum Contaminant Level Goals (MCLGs) for PFOA and PFOS at zero and the enforceable Maximum Contaminant Level (MCL) at 0.0000040 mg/L or 4.0 ppt for each of these contaminants. The EPA is also finalizing individual MCLGs and is promulgating individual MCLs for PFHxS, PFNA and HFPO-DA at 10 ppt. Lastly, the EPA is finalizing a Hazard Index (HI) of 1 (unitless) as the MCLG and MCL for any mixture containing two or more of PFHxS, PFNA, HFPO-DA and PFBS.
The estimates for the proposed rule included requirements for initial and quarterly sampling in the first three years, the new estimates include requirements for initial sampling only. Additionally, the estimates for the proposed rule included requirements for primacy agencies review of initial and quarterly sampling in the first three years, the new estimates include requirements for initial sampling only.
On behalf of this Federal agency, I certify that the collection of information encompassed by this request complies with 5 CFR 1320.9 and the related provisions of 5 CFR 1320.8(b)(3).
The following is a summary of the topics, regarding the proposed collection of information, that the certification covers:
(i) Why the information is being collected;
(ii) Use of information;
(iii) Burden estimate;
(iv) Nature of response (voluntary, required for a benefit, or mandatory);
(v) Nature and extent of confidentiality; and
(vi) Need to display currently valid OMB control number;
If you are unable to certify compliance with any of these provisions, identify the item by leaving the box unchecked and explain the reason in the Supporting Statement.