[Federal Register Volume 75, Number 93 (Friday, May 14, 2010)]
[Notices]
[Pages 27372-27375]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-11563]
-----------------------------------------------------------------------
NUCLEAR REGULATORY COMMISSION
[Docket No. 50-252; NRC-2009-0557]
University of New Mexico; University of New Mexico AGN-201M
Reactor; Environmental Assessment and Finding of No Significant Impact
The U.S. Nuclear Regulatory Commission (NRC or the Commission) is
considering issuance of a renewed Facility Operating License No. R-102,
to the University of New Mexico (the licensee), which would authorize
continued operation of the University of New Mexico AGN-201M reactor,
located in Albuquerque, Bernalillo County, New Mexico. Therefore, as
required by Title 10 of the Code of Federal Regulations (10 CFR) 51.21,
the NRC is issuing this Environmental Assessment and Finding of No
Significant Impact.
Environmental Assessment
Identification of the Proposed Action
The proposed action would renew Facility Operating License No. R-
102 for a period of twenty years from the date of issuance of the
renewed license. The proposed action is in accordance with the
licensee's application dated February 21, 2007, as supplemented by
letter dated November 9, 2009. In accordance with 10 CFR 2.109, the
existing license remains in effect until the NRC takes final action on
the renewal application.
Need for the Proposed Action
The proposed action is needed to allow the continued operation of
the AGN-201M reactor to routinely provide teaching, research, and
services to numerous institutions for a period of twenty years.
Environmental Impacts of the Proposed Action
The NRC has completed its safety evaluation of the proposed action
to
[[Page 27373]]
issue a renewed Facility Operating License No. R-102 to allow continued
operation of the AGN-201M reactor and concludes there is reasonable
assurance that the AGN-201M reactor will continue to operate safely for
the additional period of time. The details of the NRC staff's safety
evaluation will be provided with the renewed license that will be
issued as part of the letter to the licensee approving its license
renewal application. This document contains the environmental
assessment of the proposed action.
The University of New Mexico is located in Albuquerque, New Mexico.
The AGN-201M reactor is housed in the Nuclear Energy Laboratory (NEL)
located near the southwest corner of the University campus. The NEL is
primarily surrounded by residential areas to the west and south and the
University campus to the east and north. According to the 2000 census,
the population density within a radial distance of one mile from the
NEL is 5,352.9 persons per square mile. The nearest permanent residence
is 160 meters (174 yards) from the site and the nearest dormitory is
724 meters (792 yards).
The NEL is a one-story concrete structure with six feet of earth
between one foot thick concrete walls on the south and west sides. The
north and east walls are poured concrete approximately one foot thick.
The roof of the building is three feet of earth between five-inch thick
concrete slabs. A portion of the roof is five feet of earth between
five-inch thick concrete slabs. The only outside windows in the
building are located in the entrance doors.
The AGN-201M reactor is a solid, homogeneous thermal reactor, used
for teaching and training of students. The reactor is operated in a
sealed container at a maximum licensed power of 5.0 watts. The reactor
core uses graphite-coated uranium microspheres enriched in uranium-235,
dispersed in a polyethylene matrix. The reactor core consists of nine
fuel discs that are separated at the mid-plane by a thin aluminum
baffle. Because of the small fissile material content and low operation
power level, the fission product inventory in the core is negligible.
The core is contained in a gas-tight aluminum cylindrical tank. The
AGN-201M reactor has two safety rods, one coarse control rod, and one
fine control rod. The two safety rods and the coarse control rod are
fuel-loaded while the loading of the fine control rod depends on the
standard loading in use at the time. In all cases, inserting a rod adds
reactivity to the system.
The licensee has not requested any changes to the facility design
or operating conditions as part of this renewal request. Therefore, the
proposed action should not increase the probability or consequences of
accidents. No changes are being made in the types of effluents that may
be released off site. There should be no increase in occupational or
public radiation exposure. Therefore, license renewal should not change
the environmental impact of facility operation. Data from the last five
years of operation was assessed to determine the projected radiological
impact of the facility on the environment during the period of the
renewed license. Based on this evaluation, the NRC staff concluded that
continued operation of the reactor should not have a significant
environmental impact.
I. Radiological Impact
No environmental effects should result from use of this reactor.
The AGN-201M reactor has a dry core of uranium-impregnated
polyethylene, sealed in an aluminum tank. Because of the form of the
fuel and the lack of fission product inventory, failure of equipment or
release of the fuel to the outside environment will not directly or
indirectly endanger the public health and safety. A probabilistic risk
assessment review of the reactor (ANS Transactions, Vol. 65, p. 132-
133, 1992) indicated that ``in the unlikely event of release to the
environment, a total whole body dose rate of 1.61 x 10-5
mrem/sec in the form of a radioactive plume has been calculated for
persons located in the vicinity.'' This indicates that even the maximum
hypothetical release accident does not endanger the public health and
safety.
The core is surrounded by a 20 cm thick high density (1.75 gram/
cm\3\) graphite reflector followed by a 10 cm thick lead gamma shield.
The core and part of the graphite reflector are sealed in a fluid-tight
aluminum core tank designed to contain any fission gases that might
leak from the core. A review of the licensee's annual reports from
2000-2007, excluding the report for the period July 2002 through June
2003 which was not available, reveals that there was no liquid
radioactive waste released from the facility nor was there any solid
waste released. In addition, no environmental radiation surveys were
required to be performed outside of the facility.
Personnel exposures received during the same time period were below
50 mrem per person with the majority of the personnel receiving below 5
mrem. No changes in reactor operation that would lead to an increase in
occupational dose are expected as a result of license renewal.
Radiation monitoring instrumentation available to the reactor
operators includes console-mounted meters and a portable survey meter.
There are remote area monitors with automatic alarms installed to
monitor gamma levels at the reactor console, checkpoint three (the
south side of the reactor), reactor top, and in the general lab area
(near the east door). All of the detectors are energy-compensated
Geiger Mueller tubes. There will be no changes to the licensed program
that would affect off-site radiation and contamination levels.
II. Non-Radiological Impact
The AGN-201M reactor is conductively cooled and requires no liquid
or auxiliary cooling system. The removable thermal column tank permits
access to the core tank. The thermal column tank is normally filled
with water to provide shielding. The tank can be filled with graphite
if a thermal column is desired. The steel thermal column tank acts as
secondary containment for the core tank and is fluid tight. The water
tank is the third and outermost of the fluid tight containers. It is
198 cm in diameter and made of steel. It holds 1000 gallons of water
and forms the fast neutron shield. The water in the tank contains
chromium. To date, the water has never been removed from the tank and
there are no plans to do so. The water will be drained in the event the
reactor is decommissioned and removal of the water will be handled by
University of New Mexico Radiation Safety. Finally, there is a 60 cm
concrete block shield on the front of the reactor tank and 40 cm
concrete block shields on the sides and back. There is no shielding on
the top of the reactor tank.
Release of thermal effluents from the AGN-201M reactor will not
have a significant effect on the environment.
Environmental Effects of Accidents
Accident scenarios are discussed in Appendix A of the University of
New Mexico's Safety Analysis Report. The maximum hypothetical accident
is a nuclear excursion resulting from a 2% instantaneous increase of
reactivity. The total radiation dose to a person next to the reactor
would be approximately one rem; therefore, the worst-case occupational
doses resulting from this accident would be below the limit of 5 rem or
0.05 Sieverts (Sv) specified in 10 CFR 20.1201. Worst-case doses to
members of the general public would be
[[Page 27374]]
below the limit of 0.1 rem (1 mSv) specified in 10 CFR 20.1301. The
proposed action will not increase the probability or consequences of
accidents.
National Environmental Policy Act (NEPA) Considerations
I. Endangered Species Act (ESA)
The site occupied by the AGN-201M reactor does not contain any
Federally- or State-protected fauna or flora, nor do the AGN-201M
reactor effluents impact the habitats of any such fauna or flora.
II. Costal Zone Management Act (CZMA)
The site occupied by the AGN-201M reactor is not located within any
managed coastal zones, nor do the AGN-201M reactor effluents impact any
managed costal zones.
III. National Historical Preservation Act (NHPA)
The NHPA requires Federal agencies to consider the effects of their
undertakings on historic properties. The National Register of Historic
Places (NRHP) lists several historical sites near the AGN-201M reactor
site. The nearest historical site is Cottage Bakery, located
approximately 0.1 miles from the AGN-201M reactor site boundary. Given
the distance between the facility and Cottage Bakery, continued
operation of the AGN-201M reactor will not impact this historical site.
IV. Fish and Wildlife Coordination Act (FWCA)
The licensee is not planning any water resource development
projects, including any of the modifications relating to impounding a
body of water, damming, diverting a stream or river, deepening a
channel, irrigation, or altering a body of water for navigation or
drainage.
V. Executive Order 12898--Environmental Justice
The environmental justice impact analysis evaluates the potential
for disproportionately high and adverse human health and environmental
effects on minority and low-income populations that could result from
the relicensing and the continued operation of the AGN-201M reactor.
Disproportionately high and adverse human health effects occur when the
risk or rate of exposure to an environmental hazard for a minority or
low-income population is significant and exceeds the risk or exposure
rate for the general population or for another appropriate comparison
group. Disproportionately high environmental effects are impacts or
risk of impacts on the natural or physical environment in a minority or
low-income community that are significant and appreciably exceed the
environmental impact on the larger community. Such effects may include
ecological, cultural, economic, or social impacts. Minority and low-
income populations are subsets of the general public residing in the
vicinity of the AGN-201M reactor, and all are exposed to the same
health and environmental effects generated from activities at the AGN-
201M reactor.
Minority Populations in the Vicinity of the AGN-201M reactor--
According to 2000 census data, 51.9 percent of the population
(approximately 748,000 individuals) residing within a 50-mile radius of
the AGN-201M reactor identified themselves as minority individuals. The
largest minority group was Hispanic or Latino (310,000 persons or 41.4
percent), followed by ``Some other race'' (141,500 or about 18.9
percent). According to the U.S. Census Bureau, about 51.7 percent of
the Bernalillo County population identified themselves as minorities,
with persons of Hispanic or Latino origin comprising the largest
minority group (42.0 percent). According to census data 3-year average
estimates for 2005-2007, the minority population of Bernalillo County,
as a percent of total population, had increased to 55.6 percent.
Low-Income Populations in the Vicinity of the AGN-201M reactor--
According to 2000 census data, approximately 19,900 families and
100,800 individuals (approximately 10.4 and 13.5 percent, respectively)
residing within a 50-mile radius of the AGN-201M reactor were
identified as living below the Federal poverty threshold in 1999. The
1999 Federal poverty threshold was $17,029 for a family of four.
According to Census data in the 2005-2007 American Community Survey
3-Year Estimates, the median household income for New Mexico was
$41,042, while 18.4 percent of the state population and 14.2 percent of
families were determined to be living below the Federal poverty
threshold. Bernalillo County had a higher median household income
average ($45,022) and lower percentages (14.9 percent) of individuals
and families (11.1 percent) living below the poverty level,
respectively.
Impact Analysis--Potential impacts to minority and low-income
populations would mostly consist of radiological effects; however,
radiation doses from continued operations associated with the license
renewal are expected to continue at current levels and would be well
below regulatory limits.
Based on this information and the analysis of human health and
environmental impacts presented in this environmental assessment, the
proposed relicensing would not have disproportionately high and adverse
human health and environmental effects on minority and low-income
populations residing in the vicinity of the AGN-201M reactor.
Environmental Impacts of the Alternatives to the Proposed Action
As an alternative to license renewal, the staff considered denial
of the proposed action. If the Commission denied the application for
license renewal, facility operations would end and decommissioning
would be required with no significant impact on the environment. The
environmental impacts of license renewal and this alternative action
are similar. In addition, the benefits of teaching, research, and
services provided by facility operation would be lost.
Alternative Use of Resources
The proposed action does not involve the use of any different
resources or significant quantities of resources beyond those
previously considered in the issuance of the original Facility
Operating License R-102 for the University of New Mexico AGN-201M dated
September, 1966; and the issuance of Amendment No. 10 to R-102, which
authorized the power uprate to 5.0 W(t) dated January 18, 1973.
Agencies and Persons Consulted
In accordance with the Commission's stated policy, on November 25,
2009, the staff consulted with the State of New Mexico's State Liaison
Officer, regarding the environmental impact of the proposed action. A
copy of the draft environmental assessment was provided to the State
Liaison Officer for review. In a memorandum dated December 22, 2009,
the Director of the Environmental Health Division of the State's
Department of the Environment responded, expressing the State's support
for the continued operation of the facility.
Finding of No Significant Impact
On the basis of the environmental assessment, the NRC concludes
that the proposed action will not have a significant effect on the
quality of the human environment. Accordingly, the NRC has determined
not to prepare an environmental impact statement for the proposed
action.
[[Page 27375]]
For further details with respect to the proposed action, see the
licensee's application dated February 21, 2007 [ML092170540], as
supplemented by the letter dated November 9, 2009 [ML093410385].
Documents may be examined, and/or copied for a fee, at the NRC's Public
Document Room (PDR), located at One White Flint North, 11555 Rockville
Pike (1st Floor), Rockville, Maryland. Publicly available records will
be accessible electronically from the Agencywide Documents Access and
Management System (ADAMS) Public Electronic Reading Room on the NRC Web
site http://www.nrc.gov/reading-rm/adams.html. Persons who do not have
access to ADAMS or who encounter problems in accessing the documents
located in ADAMS should contact the NRC PDR Reference staff at 1-800-
397-4209, or 301-415-4737, or send an e-mail to [email protected].
Dated at Rockville, Maryland, this 5th day of May, 2010.
For the Nuclear Regulatory Commission.
Kathryn M. Brock,
Chief, Research and Test Reactors Licensing Branch, Division of Policy
and Rulemaking, Office of Nuclear Reactor Regulation.
[FR Doc. 2010-11563 Filed 5-13-10; 8:45 am]
BILLING CODE 7590-01-P