Southline Transmission Line Project Environmental Impact Statement, 22076-22078 [2016-08620]

Agencies

• DEPARTMENT OF ENERGY
• Western Area Power Administration

[Federal Register Volume 81, Number 72 (Thursday, April 14, 2016)]
[Notices]
[Pages 22076-22078]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-08620]



[[Page 22076]]

-----------------------------------------------------------------------

DEPARTMENT OF ENERGY

Western Area Power Administration

[DOE/EIS-0474]


Southline Transmission Line Project Environmental Impact 
Statement

AGENCY: Western Area Power Administration, DOE.

ACTION: Record of decision.

-----------------------------------------------------------------------

SUMMARY: The Western Area Power Administration (Western) and the U.S. 
Bureau of Land Management (BLM), acting as joint lead agencies, issued 
the Proposed Southline Transmission Line Project (Project) Final 
Environmental Impact Statement (EIS) (DOE/EIS-0474) on November 6, 
2015. The Agency Preferred Alternative developed by Western and the BLM 
through the National Environmental Policy Act (NEPA) process and 
described in the Final EIS is summarized in this Record of Decision 
(ROD). This alternative is also the Environmentally Preferred 
Alternative for most of the Project. One segment in the New Build 
Section and some local alternatives in the Upgrade Section were 
selected that reduce substantial existing resource conflicts while 
creating only minor new impacts. All practicable means to avoid or 
minimize environmental harm have been adopted.
    Since the BLM and Western were joint lead agencies in the 
preparation of the EIS, each agency will issue its own ROD(s) 
addressing the overall Project and the specific matters within its 
jurisdiction and authority. This ROD constitutes Western's decision 
with respect to the alternatives considered in the Final EIS.
    Western has selected the Agency Preferred Alternative identified in 
the Final EIS as the route for the Project. This decision on the route 
will enable design and engineering activities to proceed. This ROD also 
commits Western and Southline Transmission, LLC (Southline) to 
implement the proponent-committed environmental measures (PCEMs) 
identified in table 2-8, Project PCEMs by Resource, of the Final EIS. 
Selection of the Agency Preferred Alternative will also allow detailed 
Project costs to be developed, which are necessary for future 
participation and financing decisions. This ROD does not make decisions 
about Western's participation in the Project or financing. Those 
decisions are contingent on the successful development of participation 
agreements and financial underwriting, and would be recorded in a 
second ROD.

FOR FURTHER INFORMATION CONTACT: For information on Western's 
participation in the Project contact Stacey Harris, Public Utilities 
Specialist, Transmission Infrastructure Program (TIP) Office A0700, 
Headquarters Office, Western Area Power Administration, P.O. Box 
281213, Lakewood, CO 80228-8213, telephone (720) 962-7714, facsimile 
(720) 962-7083, email sharris@wapa.gov. For information about the 
Project EIS process or to request a CD of the document, contact Mark J. 
Wieringa, NEPA Document Manager, Natural Resources Office A7400, 
Headquarters Office, Western Area Power Administration, P.O. Box 
281213, Lakewood, CO 80228-8213, telephone (720) 962-7448, facsimile 
(720) 962-7263, email wieringa@wapa.gov. The Final EIS, this ROD, and 
other Project documents are also available on the Project Web site at 
https://www.blm.gov/nm/southline.
    For general information on the Department of Energy (DOE) NEPA 
process, please contact Carol M. Borgstrom, Director, Office of NEPA 
Policy and Compliance (GC-54), U.S. Department of Energy, 1000 
Independence Avenue SW., Washington, DC 20585, telephone (202) 586-4600 
or (800) 472-2756.

SUPPLEMENTARY INFORMATION: Southline, a subsidiary of Hunt Power, LP, 
is the Project proponent. Black Forest Partners, LP, is the manager for 
the Project. In March 2011, Southline submitted a Statement of Interest 
to Western for consideration of its Project. As part of their Project, 
Southline proposed the upgrade of approximately 120 miles of Western's 
existing Saguaro-Tucson and Tucson-Apache 115-kilovolt (kV) single-
circuit transmission lines to a double-circuit 230-kV transmission line 
(Upgrade Section) using existing rights-of-way (ROWs). The New Build 
Section of the Project would include 240 miles of new 345-kV double-
circuit transmission line on new ROWs between Afton Substation in New 
Mexico and Apache Substation in Arizona. In addition, Southline 
requested that Western consider providing financing for the Project 
using the borrowing authority provided to Western under the American 
Recovery and Reinvestment Act of 2009 amendment of the Hoover Power 
Plant Act of 1984. Southline's proposal prompted Western to initiate an 
EIS process to determine the environmental impacts of the Project and 
alternatives to inform Western's decisions regarding the Project.
    Southline also filed a ROW application with the BLM pursuant to 
Title V of the Federal Land Policy and Management Act of 1976, as 
amended, proposing to construct, operate, maintain, and eventually 
decommission a high-voltage electric transmission line on land managed 
by the BLM. The BLM initiated its own NEPA process to address whether 
to grant a ROW permit. Because both agencies had NEPA decisions to 
consider, Western and the BLM agreed to be joint lead agencies in 
accordance with NEPA, 40 CFR 1501.5(b), for the purpose of preparing 
the EIS for the Project. The agencies issued the Final EIS for the 
Project on November 6, 2015. Each agency will issue its own ROD(s) 
addressing the overall Project and the specific matters within its 
jurisdiction and authority. This ROD constitutes Western's decision 
with respect to the alternatives considered in the Final EIS.

Project Description

    The Project includes:
    The New Build Section (Afton-Apache), which includes construction 
and operation of:
     Approximately 205 miles of 345-kV double-circuit electric 
transmission line in New Mexico and Arizona with a planned 
bidirectional capacity of up to 1,000 MW. This section is defined by 
endpoints at the existing Afton Substation, south of Las Cruces in 
Do[ntilde]a Ana County, New Mexico, and the existing Apache Substation, 
south of Willcox in Cochise County, Arizona;
     Approximately 5 miles of 345-kV single-circuit electric 
transmission line between the existing Afton Substation and the 
existing Luna-Diablo 345-kV transmission line. This segment of the 
Project is included in the analysis, but development of this segment 
would be determined at a later date;
     Approximately 30 miles of 345-kV double-circuit electric 
transmission line between New Mexico State Route 9 and Interstate 10 
east of Deming in Luna County, New Mexico, to provide access for 
potential renewable energy generation sources in southern New Mexico. 
This segment of the Project is included in the analysis, but 
development of this segment would be determined at a later date;
     A new substation in Luna County, New Mexico (proposed 
Midpoint Substation), to provide an intermediate connection point for 
future interconnection requests; and
     Substation expansion for installation of new 
communications equipment at, and connection to, two existing 
substations in New Mexico and one in Arizona.
    The Upgrade Section (Apache-Saguaro), which would replace and

[[Page 22077]]

upgrade a portion of Western's transmission system and includes:
     Replacing 120 miles of Western's existing Saguaro-Tucson 
and Tucson-Apache 115-kV single-circuit wood-pole H-frame electric 
transmission lines with a 230-kV double-circuit electric steel-pole 
transmission line. This section is defined by endpoints at the existing 
Apache Substation, south of Willcox in Cochise County, Arizona, to the 
existing Saguaro Substation, northwest of Tucson in Pima County, 
Arizona;
     Approximately 2 miles of new-build double-circuit 230-kV 
electric transmission line to interconnect with the existing Tucson 
Electric Power Company Vail Substation located southeast of Tucson and 
just north of the existing 115-kV Tucson-Apache line; and
     Connection to and upgrading, modification, and expansion 
of 12 existing substations in southern Arizona, including installation 
of new bays, transformers, breakers, switches, communications 
equipment, and related facilities associated with the voltage increase 
and compatibility with existing substations. Depending on design and 
engineering considerations, some substation expansions may require 
separate yards.

Alternatives

    Based on a series of public meetings, routing workshops and 
meetings with local, State, and other Federal agencies prior to 
developing their Project, Southline published a Project routing study 
(April 2012). Many different route segments were identified and 
analyzed during this process. The route segments were designed to 
maximize the paralleling of existing linear infrastructure, maximize 
use of existing access roads, and identify and reject route segments 
with substantial environmental conflicts. This process resulted in a 
`Proponent Preferred' or northern route, and a `Proponent Alternative' 
or southern route, for the New Build Section. Although other options 
were considered, rebuilding the existing Western lines was the only 
option that preserved connectivity with the 12 existing substations in 
southern Arizona, an important feature of the Project.
    Southline presented the Proponent Preferred and Proponent 
Alternative routes to the BLM with their application for a ROW grant 
and these alternatives were analyzed in the NEPA process. Because 
Western and BLM participated in Southline's routing study and public 
outreach, they each understood why various route segments were selected 
and rejected. Both agencies analyzed both of the Southline proponent 
alternatives and the No Action Alternative, and used the NEPA process 
to identify other potentially reasonable, viable alternatives. Due to 
Southline's thorough routing process, extensive stakeholder outreach, 
and early route screening with Western and the BLM, agency alternatives 
developed through the NEPA process resulted in only small route 
variations which could potentially reduce or avoid local resource 
conflicts.
    The 360-mile-long Project was divided into four `route groups', two 
in the New Build Section and two in the Upgrade Section, with Apache 
Substation in Arizona being the point separating the two sections and 
route groups 1 and 2 from route groups 3 and 4. Within the four route 
groups various sub-routes including segments of the Proponent Preferred 
and Proponent Alternative were identified. Some of the sub-routes also 
include local alternatives that were departures from the proponent 
alternatives due to potential resource conflicts or opportunities 
identified during the NEPA process. The agencies' alternatives analyses 
did not result in major new alternatives but did identify local 
alternatives and route variations that avoided or reduced localized 
resource conflicts. The division of the Project into smaller sections 
provided a framework for a more meaningful and localized comparison of 
resource impacts and provided the agencies with the ability to `mix and 
match' route segments to create multiple full-length alternatives.

Agency Preferred Alternative

    The Agency Preferred Alternative developed in the Final EIS varies 
somewhat from the one described in the Draft EIS due to consideration 
and incorporation of comments from the public, interested parties and 
the agencies. In the New Build Section, the Agency Preferred 
Alternative consists of a combination of the Proponent Preferred, 
Proponent Alternative, and local alternative segments. Draft EIS local 
alternative LD4 would have included the shared use of approximately 50 
miles of ROW with the proposed SunZia Project to consolidate linear 
facility impacts into one utility corridor, an important BLM management 
objective. However, a Western Electricity Coordinating Council Regional 
Business Practice standard requires separation between large, main 
system transmission lines, which could largely negate the environmental 
benefits of constructing transmission lines in adjacent ROWs. 
Additionally, if one line were not constructed, the remaining line 
would traverse previously undeveloped land and create a new utility 
corridor of its own, precisely the situation the BLM is trying to 
prevent by consolidating development. Accordingly, the Agency Preferred 
Alternative in the Final EIS was shifted south to another route segment 
that parallels an existing natural gas pipeline ROW.
    Both the Department of Defense and the Arizona Game and Fish 
Department (AZGFD) expressed concerns about alternatives in the area 
near Willcox Playa and north and east of Apache Substation. The route 
selected in the Draft EIS that runs parallel to an existing 
transmission line east of the playa presented conflicts with wintering 
sandhill cranes and waterfowl, and routes to Apache Substation on the 
west side of the playa conflicted with activities on the Buffalo 
Soldier Electronic Testing Range. Options east of developed 
agricultural areas near the playa that turned directly west to enter 
Apache Substation were prepared and analyzed, but were found to 
conflict with agricultural interests. Ultimately, mitigation of 
potential effects on sandhill cranes and waterfowl acceptable to the 
AZGFD was agreed upon and the route on the east side of the Willcox 
Playa that was originally included as part of the Agency Preferred 
Alternative was retained.
    The Agency Preferred Alternative for the Upgrade Section consists 
of a combination of the Proponent Preferred, a route variation south of 
the Tucson International Airport, and local alternatives at Tumamoc 
Hill and near the Marana Airport. The Agency Preferred Alternative 
maximizes the use of existing Western ROWs for the Saguaro-Tucson and 
Tucson-Apache transmission lines while also addressing existing impacts 
and opportunities where appropriate. The route skirts the edge of the 
culturally and visually sensitive Tumamoc Hill property and allows the 
removal of the section of existing line that crosses through the middle 
of the property, relocates a portion of the existing line to facilitate 
Pima County future development plans south of Tucson International 
Airport, relocates a segment of existing line out of the Summit 
community where development is encroaching on the ROW, and relocates a 
segment of existing line near the Marana Airport to reduce conflicts 
with military training operations.

Environmentally Preferred Alternative

    Except for one segment the Environmentally Preferred Alternative 
for the New Build Section is the same

[[Page 22078]]

as the Agency Preferred Alternative. This is due to the emphasis placed 
on routing the Project to parallel existing linear infrastructure and 
consolidating development to the maximum extent possible. Consolidation 
also maximizes the opportunity to use existing access roads for the 
Project. This approach minimizes new disturbance and, in turn, 
environmental impacts.
    The Environmentally Preferred Alternative for the Upgrade Section 
involves an upgrade of the existing single-circuit 115-kV wood pole 
lines and use of the existing Western ROWs for the entire length of the 
section from Apache Substation to Saguaro Substation. The existing 
lines have been operated and maintained for over 60 years and have 
well-established access roads. New construction disturbance would be 
minimal and little or no new impacts to environmental resources would 
occur except that new monopole steel structures would be taller and 
have an incrementally larger visual impact. Any existing impacts on the 
human environment are already included in the baseline condition.
    Responsible transmission planning also looks for opportunities to 
reduce existing impacts or address changing attitudes about the values 
and weights of impacts. Each of the three local alternatives included 
in the Agency Preferred Alternative would have associated new 
environmental impacts, but in each case it was determined that the 
reduction in present or future conflicts more than offset the new 
impacts.
    Minimization of environmental impacts was an integral part of 
Project routing and planning, and all practicable means have been 
adopted to avoid or minimize environmental harm. Table 2-8 in section 
2.4.6, Typical Design Features and Agency Mitigation Measures, of the 
Final EIS is a compilation of PCEMs that would be implemented to 
minimize impacts. If the Project moves into the construction phase, 
this table will be incorporated into the construction contract to 
ensure the PCEMs are an integral part of the construction process. The 
PCEMs include design features that minimize impacts, agency identified 
best management practices, known regulatory and permit requirements, 
and other project-specific measures developed during the EIS process. 
As described in section 2.4.1 of the Final EIS, Site Preparation and 
Preconstruction Activities, Southline and the BLM have developed an 
extensive Plan of Development (Appendix N to the Final EIS). Numerous 
framework plans (appendices to the Plan of Development) are being 
developed that include specific best management practices and resource 
protection measures that condition the ROW grant. The Plan of 
Development only applies to activities on BLM-managed public lands. 
Western may implement applicable provisions of the Plan of Development 
and its attached framework plans on State and private lands as 
appropriate.

Changes to Final EIS

    The Town of Marana, Arizona, in consultation with the AZGFD, 
requested that a clarification be made to PCEM in table 2-8 concerning 
a bat colony under the Ina Road bridge. The agencies are incorporating 
the requested clarification in the BLM Plan of Development and table 2-
8. The revised language will read as follows: ``To avoid impacting 
roosting bats at the Ina Road bridge, blasting activities will be 
restricted to less than 130 decibels (dB) at the project site if 
possible, and if that is not possible, then blasting activities will 
occur at night after most bats have left their roost. No blasting will 
occur in April or May when the maternity colony is present.''
    The Benson/San Pedro Valley Chamber of Commerce and J-6/Mescal 
Community Development Organization also raised questions after the 
Final EIS was published. Both parties indicated a preference for Local 
Alternative H, a route developed for analysis based on public comment. 
Local Alternative H departs from the existing alignment and bypasses 
Benson and the Mescal residential development on the north before 
rejoining the existing alignment east of Benson and the Mescal 
residential development. The parties raised concerns about visual 
impacts, EMF, and future development in the area, which were all 
analyzed in the EIS. Local Alternative H was not selected as part of 
the Agency Preferred Alternative. The existing transmission line has 
been in place since the early 1950s, and development has been planned 
around the existing ROW. Moving to Local Alternative H would only shift 
impacts from one set of landowners to a new set of landowners. 
Additionally, staying on the existing ROW would use the existing 
crossing of the San Pedro River, a sensitive environmental resource. 
The issues expressed by the parties do not present any significant new 
circumstances or information relevant to environmental concerns.

Section 7 and Section 106 Consultation

    The BLM, as the main affected Federal land management agency, 
retained the lead role for Section 7 and Section 106 consultation. 
Consultation with the U.S. Fish and Wildlife Service resulted in the 
issuance of a final Biological Opinion on November 10, 2015. The 
requirements of the Biological Opinion will apply to the entire 
Project, whether on BLM managed land or not. The Biological Opinion is 
provided as Appendix M of the Final EIS and can also be found on the 
Project Web site. Western also participated as an invited signatory in 
the Section 106 process, which led to a Programmatic Agreement that 
will govern Section 106 actions as they apply to the Project. The 
Programmatic Agreement, Appendix L of the Final EIS, is also posted on 
the Project Web site.

Western's Decision

    Informed by the analyses and environmental impacts documented in 
the Final EIS, Western has selected \1\ the Agency Preferred 
Alternative identified in the Final EIS as the route for the Project. 
The Agency Preferred Alternative route will be the basis for design and 
engineering activities that will finalize the centerline, ROW, and 
access road locations, particularly in the New Build Section. 
Additionally, this ROD commits Western and Southline to implement the 
PCEMs identified in the Final EIS in table 2-8 to minimize 
environmental impacts. Selection of the Agency Preferred Alternative 
will also allow detailed Project costs to be developed, which are 
necessary for future participation and financing decisions. These 
decisions are contingent on the successful development of participation 
agreements and financial underwriting, and would be recorded in a 
second ROD. Participation and financing agreements will address Project 
details such as interconnections, ownership, operations, maintenance, 
marketing, financing, and land acquisition.
---------------------------------------------------------------------------

    \1\ On November 16, 2011, DOE's Acting General Counsel restated 
the delegation to Western's Administrator all the authorities of the 
General Counsel respecting environmental impact statements.
---------------------------------------------------------------------------

    This ROD was prepared in accordance with the requirements of the 
Council on Environmental Quality regulations for implementing NEPA (40 
CFR parts 1500 through 1508) and U.S. Department of Energy NEPA 
regulations (10 CFR part 1021).

    Dated: April 5, 2016.
Mark A. Gabriel,
Administrator.
[FR Doc. 2016-08620 Filed 4-13-16; 8:45 am]
 BILLING CODE 6450-01-P