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Federal Register / Vol. 86, No. 162 / Wednesday, August 25, 2021 / Notices www.regulations.gov. For additional information about EPAs public docket, visit http www.epa.gov/dockets.
Pursuant to section 3506c2A of the PRA, EPA is soliciting comments and information to enable it to: i Evaluate whether the proposed collection of information is necessary for the proper performance of the functions of the Agency, including whether the information will have practical utility; ii evaluate the accuracy of the Agencys estimate of the burden of the proposed collection of information, including the validity of the methodology and assumptions used;
iii enhance the quality, utility, and clarity of the information to be collected; and iv minimize the burden of the collection of information on those who are to respond, including through the use of appropriate automated electronic, mechanical, or other technological collection techniques or other forms of information technology, e.g., permitting electronic submission of responses. EPA will consider the comments received and amend the ICR
as appropriate. The final ICR extension request package will then be submitted to OMB for review and approval. At that time, EPA will issue another Federal Register notice to announce the submission of the ICR extension request package to OMB and the opportunity to submit additional comments to OMB.
Abstract: EPA developed the Underground Injection Control UIC
Program under the authority of the Safe Drinking Water Act to establish a federal-state regulatory system to protect underground sources of drinking water USDWs from injection fluids and injection-related activities. Injected fluids include hazardous waste, oil field brines or produced water, mineral processing fluids, various types of industrial fluids, automotive, sanitary, and other wastes, and carbon dioxide injected for geologic sequestration.
Owners or operators of injection wells must obtain permits, conduct environmental monitoring, maintain records, and report results to the EPA or the state agency if the state has UIC
primary enforcement responsibility primacy. States must report to the EPA on permittee compliance and related information. This mandatory information is reported using standardized forms and annual reports.
The governing regulations are codified in the Code of Federal Regulations CFR at 40 CFR parts 144 through 148.
Reporting data are used by UIC
authorities to ensure the protection of USDWs.
Form Numbers: 75201, 75202A, 752028. 75203, 75204, 75206,
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75207, 75208, 75209, 752010, 752011, 752012, 752014, 752016, and 752017.
Respondents/affected entities:
Owners or operators of underground injection wells and state UIC primacy agencies.
Respondents obligation to respond:
Mandatory 40 CFR parts 140 through 148.
Estimated number of respondents:
35,385 total.
Frequency of response: Annual, semiannual, and quarterly.
Total estimated burden: 1,617,274
hours per year. Burden is defined at 5
CFR 1320.03b.
Total estimated cost: $319,605,059
per year, includes $243,531,752
annualized capital or operation and maintenance costs.
Changes in estimates: Changes and developments in many aspects of the UIC program during the previous ICR
period directly impact the estimates used in this ICR extension. For example, variations in permitting and closures across well classes and well inventory, revisions to UIC primacy programs, efforts to streamline the permit application process, alterations to state and operator reporting systems and other factors all cause variations in the ICR estimates. For the UIC ICR
extension there is an increase of 325,014
hours in the total estimated respondent burden compared with the ICR currently approved by OMB. This increase is due to changes in the injection well inventory and adjustments to the number of permit applications particularly for Class VI wells that are expected to be prepared and reviewed.
Jennifer L. McLain, Director, Office of Ground Water and Drinking Water.
FR Doc. 202118240 Filed 82421; 8:45 am BILLING CODE 656050P

ENVIRONMENTAL PROTECTION
AGENCY
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Public Water System Supervision Program Revision for the State of Arizona Environmental Protection Agency EPA.
ACTION: Notice of tentative approval.
AGENCY:

Notice is hereby given that the State of Arizona State revised its Public Water System Supervision PWSS Program under the federal Safe Drinking Water Act SDWA by adopting regulations to implement the
SUMMARY:

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federal Stage 1 and Stage 2 Disinfectants and Disinfection Byproducts Rules DBPRs. The Environmental Protection Agency EPA has determined that the States revisions are no less stringent than the corresponding Federal regulations and otherwise meet applicable SDWA primacy requirements. Therefore, EPA intends to approve the stated revisions as part of the States PWSS Program.
DATES: A request for a public hearing must be received on or before September 24, 2021.
ADDRESSES: All documents relating to this determination are available for inspection online at http azdeq.gov/
notices. In addition, documents relating to this determination are available for inspection by appointment between the hours of 8:30 a.m. and 4:30 p.m., Monday through Friday, except official State or Federal holidays at the following address: Arizona Department of Environmental Quality, Records Center, 1110 West Washington Street, Phoenix, AZ 85007. Please contact the ADEQ Records Center at 602 7714380
or http azdeq.gov/node/219 to schedule an appointment.
FOR FURTHER INFORMATION CONTACT:
Daria Evans-Walker, United States Environmental Protection Agency, Region 9, Drinking Water Section via telephone number: 415 9723451 or email address: evans-walker.daria@
epa.gov.
SUPPLEMENTARY INFORMATION:
Background. EPA approved the States initial application for PWSS
Program primary enforcement authority primacy on August 25, 1978 43 FR
38083. Since initial approval, EPA has approved various revisions to Arizonas PWSS Program. For the revisions covered by this action, the EPA
promulgated the Stage 1 DBP Rule on December 16, 1998 63 FR 69390
69476 with revisions to the Stage 1 DBP
Rule on January 16, 2001 66 FR 3770
3780. EPA promulgated the Stage 2
DBP Rule on January 2, 2006 71 FR
388493 and published Stage 2 DBP
Rule corrections on January 27, 2006 71
FR 4644, June 29, 2006 71 FR 37168
and November 14, 2008 73 FR 67456
67463. The EPA promulgated the Stage 1 and Stage 2 DBPRs to reduce drinking water exposure to disinfection byproducts by setting standards for additional disinfection byproducts, establishing maximum residual disinfectant levels for chemical disinfectants, and tightening compliance monitoring requirements.
EPA has determined that the Stage 1
and Stage 2 DBPRs were incorporated by reference into the Arizona
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