[Federal Register Volume 85, Number 14 (Wednesday, January 22, 2020)]
[Notices]
[Page 3679]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-00981]


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ENVIRONMENTAL PROTECTION AGENCY

[FRL-10003-88-Region 6]


Notice of Availability of Final Designation of Certain Stormwater 
Discharges in the State of New Mexico Under the National Pollutant 
Discharge Elimination System of the Clean Water Act

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice.

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SUMMARY: The Regional Administrator of the Environmental Protection 
Agency Region 6 (EPA) is providing notice of the availability of EPA's 
final determination that storm water discharges from the Los Alamos 
Urban Cluster (as defined by the 2010 Decennial Census) and Los Alamos 
National Laboratory (LANL) property are contributing to violations of 
New Mexico water quality standards (WQS) and require National Pollutant 
Elimination System (NPDES) permit coverage under the Clean Water Act 
(CWA). This action is in response to a June 30, 2014 petition filed 
with EPA by Amigos Bravos entitled ``A Petition by Amigos Bravos for a 
Determination that Storm Water Discharges in Los Alamos County 
Contribute to Water Quality Standards Violations and Require a Clean 
Water Act Permit.''

DATES: EPA's Designation Decision and Record of Decision in Response to 
Petition by Amigo Bravos for a Determination that Stormwater Discharges 
in Los Alamos County Contribute to Water Quality Standards Violations 
and Require a Clean Water Act Permit (``EPA's Decision Document'') was 
signed on December 16, 2019.

ADDRESSES: For further information contact Ms. Evelyn Rosborough via 
email: rosborough.evelyn@epa.gov, or may be mailed to Ms. Evelyn 
Rosborough, Environmental Protection Agency, Water Division (6WQ-NP), 
1201 Elm Street, Suite 500, Dallas, TX 75270.

SUPPLEMENTARY INFORMATION: EPA is providing notice of availability of 
its final determination that stormwater discharges from MS4s located in 
the portion of Los Alamos County within the Los Alamos Urban Cluster 
(as defined by the 2010 Decennial Census) and on Los Alamos National 
Laboratory (LANL) property within Los Alamos County and Santa Fe County 
are contributing to violations of New Mexico water quality standards 
(WQS) and require NPDES permit coverage. EPA's final designation 
determination is made pursuant to the authority of CWA Sec.  
402(p)(2)(E) and 40 CFR 122.26(a)(9)(i)(D) and 122.26(f)(2). CWA Sec.  
402(p)(2)(E) and 40 CFR 122.26 (a)(9)(i)(D) allow EPA to designate for 
NPDES permit coverage stormwater discharges that EPA determines are 
contributing to violations of WQS, but are not otherwise required to be 
permitted under EPA's stormwater regulations.
    Details of EPA's final designation determination are available in 
EPA's Decision Document. EPA's Decision Document and ancillary 
materials may be viewed on the EPA Region 6 web page at https://www.epa.gov/npdes/epas-residual-designation-authority.

    Issued on: Dated: December 16, 2019.
Ken McQueen,
Regional Administrator, U.S. Environmental Protection Agency, Region 6.
[FR Doc. 2020-00981 Filed 1-21-20; 8:45 am]
 BILLING CODE 6560-50-P


