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| number = ML20038C566
| number = ML20038C566
| issue date = 11/27/1981
| issue date = 11/27/1981
| title = Forwards Responses to Questions 230.1R,230.2R,230.3R,290.1R, 320.9R,460.1R & 460.2R,per 811026 Request.Remaining Responses Will Be Provided on Schedule Per 811131 Ltr
| title = Forwards Responses to Questions 230.1R,230.2R,230.3R,290.1R, 320.9R,460.1R & 460.2R,per 811026 Request.Remaining Responses Will Be Provided on Schedule Per
| author name = Copeland R
| author name = Copeland R
| author affiliation = ENERGY, DEPT. OF, CLINCH RIVER BREEDER REACTOR PLANT
| author affiliation = ENERGY, DEPT. OF, CLINCH RIVER BREEDER REACTOR PLANT
Line 16: Line 16:


=Text=
=Text=
{{#Wiki_filter:_
{{#Wiki_filter:,
3 4
3 Department of Energy 4
Department of Energy Clinch River Brec&r Reactor Plant Project OfikN 4
Clinch River Brec&r Reactor Plant Project OfikN RO. Box U 4
RO. Box U Oak Ridge, Tennessee 37830 I
Oak Ridge, Tennessee 37830 I
Docket 'a. 50-537 November 27, 1981 p   W E
Docket 'a. 50-537 November 27, 1981 W
Mr. Paul S. Check, Director                                                 Ogg1            ,
p E
CRBR Program Office                                                     6- 4     0         -3 C'
Ogg1 Mr. Paul S. Check, Director CRBR Program Office 6-4 0
Office of Nuclear Reactor Regulation                                       ~
-3 8/A Office of Nuclear Reactor Regulation C
8/A
- g'ttaa,
                                                                                                            - g'ttaa, U. S. Nuclear Regulatory Commission Washingto% DC                           20555 D                7
~
U. S. Nuclear Regulatory Commission D
7 Washingto% DC 20555


==Dear Mr. Check:==
==Dear Mr. Check:==
[
[
RESPONSES TO NRC QUESTIONS
RESPONSES TO NRC QUESTIONS This letter continues the responses to the questions provided to the -
,                          This letter continues the responses to the questions provided to the -
CRBRP Project in your letter of October 26. Our letter dated Novem-ber 13,1981, provided fifteen responses to the thirty-one requests for additional information.
CRBRP Project in your letter of October 26. Our letter dated Novem-ber 13,1981, provided fifteen responses to the thirty-one requests for additional information. In that letter we provided a schedule for furnishing the remaining material. This letter provides responses to
In that letter we provided a schedule for furnishing the remaining material. This letter provides responses to
]                         the following questions:
]
230.lR, 230.2R, 230.3R 290.1R 320.9R
the following questions:
<                                        460.lR, 460.2R It is expected that the remaining responses will continue to be supplied i                         on the schedule provided in our letter of November 13.
230.lR, 230.2R, 230.3R 290.1R 320.9R 460.lR, 460.2R It is expected that the remaining responses will continue to be supplied i
on the schedule provided in our letter of November 13.
If you have any questions, please contact Mr. Henry Piper of my staff.
If you have any questions, please contact Mr. Henry Piper of my staff.
Sincerely, 5                       '
Sincerely, 5
R     d Copel d PS:81:342                                             A ting ssist   DirectM for ublic Safety
R d
Copel d
PS:81:342 A ting ssist DirectM for ublic Safety


==Enclosure:==
==Enclosure:==
As stated cc: Service List Standard Distribution DNp Licensing Distribution Si j 8112110231 811127 PDR ADOCK 05000537 l
A PDR


As stated cc: Service List Standard Distribution                                              DNp Licensing Distribution Si j 8112110231 811127
ITEM 230.1R The geology and seismology literature search needs to be updated.
:                                                PDR ADOCK 05000537 l
The latest reference in the bibliography is 1974.
      -                                          A                      PDR
Considerable rusearch in geology and seismology has been done since that time (i.e.,
 
Appalachian COCORP Plan; recent studies of the Giles County Earthquake by Bollinger prestnted at the Earthquakes and Earthquake Engineering meeting in September, 1981 in Knoxville, Tenn.; TVA Appalachian Study; Studies related to the Charleston, S.C. 1886 earthquake; site investigations at TVA and other nuclear projects in the region; studies of other recent and historic Appalachian earthquakes; etc.)
ITEM 230.1R The geology and seismology literature search needs to be updated. The latest reference in the bibliography is 1974.
Summary or Resconser The geologic and seismological literature search is being updated to include the years 1974-1981.
Considerable rusearch in geology and seismology has been done since that time (i.e., Appalachian COCORP Plan; recent studies of the Giles County Earthquake by Bollinger prestnted at the Earthquakes and Earthquake Engineering meeting in September, 1981 in Knoxville, Tenn.; TVA Appalachian Study; Studies related to the Charleston, S.C. 1886 earthquake; site investigations at TVA and other nuclear projects in the region; studies of other recent and historic Appalachian earthquakes; etc.)
The various categories into which the recent literature has been presented are identified.
Summary or Resconser                                                       ,
A discussion of'the findings of the seismological literature search is presented.
The geologic and seismological literature search is being updated to include the years 1974-1981. The various categories into which the recent literature has been presented are identified.               A discussion of'the findings of the seismological literature search is presented.
The most significant findings since 1974 has been the Giles County earthquake study by Professor G.
The most significant findings since 1974 has been the Giles County earthquake study by Professor G. A. Boltinger which tentatively identified a northeast striking basement f ault with ascribed maximum magnitude of Ms 7.0.           Using the procedure outlined in the report to estimate the design intensities at distances away f rom Giles County, the CRBRP site intensity is estimated to be MMVI. Since CRBRP is designed to MM VIII, the current design is more conservative than that arrived by using Bollinger's Report. Independent studies by TVA reached similar conclusions for the Watts Bar plant located in the same tectonic province. There is no evidence for other similar structures within the Southern Appalachian geologic province.
A.
Boltinger which tentatively identified a northeast striking basement f ault with ascribed maximum magnitude of Ms 7.0.
Using the procedure outlined in the report to estimate the design intensities at distances away f rom Giles County, the CRBRP site intensity is estimated to be MMVI. Since CRBRP is designed to MM VIII, the current design is more conservative than that arrived by using Bollinger's Report.
Independent studies by TVA reached similar conclusions for the Watts Bar plant located in the same tectonic province.
There is no evidence for other similar structures within the Southern Appalachian geologic province.
No other new knowledge exists which would imply the inadequacy of the site design maximum intensity (VIII).
No other new knowledge exists which would imply the inadequacy of the site design maximum intensity (VIII).
Q230.1R-1
Q230.1R-1
          ,a-                       - - - - - -            >m- m -w, e- ----w-   ~     "w
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===Response===
===Response===
The geological and seismologic literature search is being updated to include the years 1974-1981. The geologic literature search was designed to include references to recent work performed in the-general site area pertaining to possible recent faulting, location of faults not previously recognized in the area, new l          interpretations of age of thrust faulting, and physical properties of the Paleozoic rock units.
The geological and seismologic literature search is being updated to include the years 1974-1981.
The seismologic literature search was designed to include references to recent work related to understanding the causes and                                       ,
The geologic literature search was designed to include references to recent work performed in the-general site area pertaining to possible recent faulting, location of faults not previously recognized in the area, new interpretations of age of thrust faulting, and physical l
distribution of earthquakes in the eastern United States, recent results of seismic monitoring in specific areas, and recent work defining the tectonic setting of the eastern United States.
properties of the Paleozoic rock units.
The literature search consisted of six data bases (National Technical Information Service, Georef, Geoarchive, Dissertation Abstracts, Government Printing Office, and Engineering Index), a review of reference lists from available recent site-related publications, and a telephone survey of geoscientists familiar with recent work done in the area. The search generated approximately 300 references, of which fewer than 200 appear to be directly applicable to the geologic or seismologic conditions in the area.
The seismologic literature search was designed to include references to recent work related to understanding the causes and distribution of earthquakes in the eastern United States, recent results of seismic monitoring in specific areas, and recent work defining the tectonic setting of the eastern United States.
The literature search consisted of six data bases (National Technical Information Service, Georef, Geoarchive, Dissertation Abstracts, Government Printing Office, and Engineering Index), a review of reference lists from available recent site-related publications, and a telephone survey of geoscientists familiar with recent work done in the area.
The search generated approximately 300 references, of which fewer than 200 appear to be directly applicable to the geologic or seismologic conditions in the area.
i The geologic publications generally fall into three categories:
i The geologic publications generally fall into three categories:
: 1) the statigraphy of the Paleozoic rock units; 2) analyses of the COCORP seismic data; and 3) developments in the interpretation of the origin of the Southern Appalachians, including originc of and mechanisms for thrust faulting in the Valley and Ridge province.         The seismologic literature falls generally into five categories: 1) intraplate tectonics; 2) l Cretaceous and Cenozoic faulting; 3) Southern Appalachien tectonics; 4)     research conducted in specific areas of the eastern United States; and 5) speculations concerning the causes Q230.1R-2 t                         __. _ . _ _ _  . __      _ . _ . _ - _ _ - _ _ _ _ _ _ _ _ _ _ _ _ - - _ _ _ _ _ _ _
1) the statigraphy of the Paleozoic rock units; 2) analyses of the COCORP seismic data; and 3) developments in the interpretation of the origin of the Southern Appalachians, including originc of and mechanisms for thrust faulting in the Valley and Ridge province.
The seismologic literature falls generally into five categories:
: 1) intraplate tectonics; 2) l Cretaceous and Cenozoic faulting; 3) Southern Appalachien tectonics; 4) research conducted in specific areas of the eastern United States; and 5) speculations concerning the causes Q230.1R-2 t


                        '            ~
.i.
                  .                                    .i.
~
of eastern United States seismicity. Based on the literature
of eastern United States seismicity.
!                      reviewed to date, it is concluded that tha specific design assumptions related to the derivation of the site seismicity for the CRBRP plant will not be impacted. A brief summary with bibliography is included below.
Based on the literature reviewed to date, it is concluded that tha specific design assumptions related to the derivation of the site seismicity for the CRBRP plant will not be impacted.
Intraclate Tectonism Recent studies concerning the occurrence of earthquakes in the eastern United States suggest that seismicity is the result of   i
A brief summary with bibliography is included below.
;                      reactivation of pre-existing zones of weakness by the present stress field. A thorough discussion of this subject is given in (1). The orientation and origin of the modern stress field in the central and eastern United States is discussed in (1) and (2).
Intraclate Tectonism Recent studies concerning the occurrence of earthquakes in the eastern United States suggest that seismicity is the result of i
Paultina Recent work has been published pertaining to Cretaceous and Cenozoic f aulting along the eastern United States continental margin (3,4,5,6,7,8). It has been proposed that northeast trending reverse faults of Cretaceous and Cenozoic age are responsible for seismicity along the eastern seaboard (9,10,11).
reactivation of pre-existing zones of weakness by the present stress field.
Southern Accalachian Tectonic Structure Recent geologic and geophysical evidence is interpreted to indicate that much of the crystalline Southern Appalachians consist of allochthonous slabs thrust from the southeast along a decollement separating the crystalline rocks from essentially flat-lying sedimentary atrata(12,13) ,
A thorough discussion of this subject is given in (1).
The Bouguer gravity field of the region has been studied by several investigators. Decomposition of the gravity field by wavelength filtering reveals a gradient extending from Maine to Alabama. It has been proposed (14) that seismicity in the
The orientation and origin of the modern stress field in the central and eastern United States is discussed in (1) and (2).
'1 Q230.1R-3
Paultina Recent work has been published pertaining to Cretaceous and Cenozoic f aulting along the eastern United States continental margin (3,4,5,6,7,8).
  -,,,-n,--.   -          ---.,w-,- -
It has been proposed that northeast trending reverse faults of Cretaceous and Cenozoic age are responsible for seismicity along the eastern seaboard (9,10,11).
Southern Accalachian Tectonic Structure Recent geologic and geophysical evidence is interpreted to indicate that much of the crystalline Southern Appalachians consist of allochthonous slabs thrust from the southeast along a decollement separating the crystalline rocks from essentially flat-lying sedimentary atrata(12,13),
The Bouguer gravity field of the region has been studied by several investigators.
Decomposition of the gravity field by wavelength filtering reveals a gradient extending from Maine to Alabama.
It has been proposed (14) that seismicity in the Q230.1R-3
'1
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---.,w-,-


crystalline Appalachians is concentrated along this gradient and notably along its transverse offsets.
crystalline Appalachians is concentrated along this gradient and notably along its transverse offsets.
Regional magnetic and gravity data were correlated with seismicity, satellite photo-imagery and related geologic data (15). Results suggest that the Precambrian crust underlying the folded Southern Appalachians has a complex structural pattern
Regional magnetic and gravity data were correlated with seismicity, satellite photo-imagery and related geologic data (15).
                ,  which can be divided into a series of distinct tectonic subdivisions.
Results suggest that the Precambrian crust underlying the folded Southern Appalachians has a complex structural pattern which can be divided into a series of distinct tectonic subdivisions.
Specific Areas of the Eastern United States Charleston. South Carolina:
Specific Areas of the Eastern United States Charleston. South Carolina:
During the past decade, much research has been directed toward identification of the structure that generated the 1886 Charleston earthquake. In 1977, the U.S. Geological Survey published Professional Paper 1028, a collection of papers which summarizes preliminary findings. A second professional paper devoted to the Charleston area is currently being prepared.
During the past decade, much research has been directed toward identification of the structure that generated the 1886 Charleston earthquake.
Focal depths for recent seismicity in the Charleston area suggest that the 1886 shock occurred in the upper crust (16) . Drilling in the Summerville area has shown that the Coastal Plain sediments are underlain by a basalt layer of Jurassic age (17) , which overlies red-bed deposits of earlier Mesozoic age. Further evidence of the graben-like deeper structure of the area comes from seismic refraction (18,19) magnetic (20), and gravity data (21). Seismic reflection profiles show a reverse fault in the Summerville area (Cooke fault) with possible northeast strike, wnich moved during Cenozoic time (5). As yet, the relationship of           .
In 1977, the U.S. Geological Survey published Professional Paper 1028, a collection of papers which summarizes preliminary findings.
this fault to seismicity is unclear (16) . Fault plane solu-tions for the Charleston seismicity show northwest-striking or sub-horizontal nodal planes (22,16) .
A second professional paper devoted to the Charleston area is currently being prepared.
Focal depths for recent seismicity in the Charleston area suggest that the 1886 shock occurred in the upper crust (16).
Drilling in the Summerville area has shown that the Coastal Plain sediments are underlain by a basalt layer of Jurassic age (17), which overlies red-bed deposits of earlier Mesozoic age.
Further evidence of the graben-like deeper structure of the area comes from seismic refraction (18,19) magnetic (20), and gravity data (21).
Seismic reflection profiles show a reverse fault in the Summerville area (Cooke fault) with possible northeast strike, wnich moved during Cenozoic time (5).
As yet, the relationship of this fault to seismicity is unclear (16).
Fault plane solu-tions for the Charleston seismicity show northwest-striking or sub-horizontal nodal planes (22,16).
Q23 0.1R-4
Q23 0.1R-4


i Recently, it has been proposed that movement along the Appalachian decollement inferred from COCORP reflection data (12,
i Recently, it has been proposed that movement along the Appalachian decollement inferred from COCORP reflection data (12,
: 13) may be the cause of the 1886 Charleston event (23) . However, whether or not the decollement extends under the Charleston area is as yet controversial (16) ,
: 13) may be the cause of the 1886 Charleston event (23).
In their update on information concerning the Charleston area requested for the St. Lucie SER(24), the U. S.G. S. summarizes the current understanding of the area as follows:
: However, whether or not the decollement extends under the Charleston area is as yet controversial (16),
            "The problem regarding identification of specific tectonic structures capable of generating large earthquakes in the east is far from resolution. Local structures near Charleston are incompletely known at present and the larger structural element, the decollement, is as yet hypothetical. However, the concentra-tion of seismicity in the Charleston earthquake epicenter both before and af ter the August 31, 1886, event and the lack of post Miocene faulting in the Coastal Plain or any evidence for localizing large earthquakes indicate that the likelihood of a Charleston-sized event in other parts of the Coastal Plain and Piedmont is very low. Consequently, earthquakes similar to the 1886 event should be considered as having the potential to occur in the vicinity of Charleston and seismic engineering parameters should be determined on that basis."
In their update on information concerning the Charleston area requested for the St. Lucie SER(24), the U. S.G. S.
Giles County. Vircinia Important new information about seismicity in the Giles County, Virginia, area has recently been obtained from monitoring by a dense seismograph network (25, 26, 27). The seismic moni-toring has revealed that focal depths in the Giles County area range
summarizes the current understanding of the area as follows:
                                  ~
"The problem regarding identification of specific tectonic structures capable of generating large earthquakes in the east is far from resolution.
from 5 km to almost 25 km. Furthermore, the epicenters in. the area reveal a northeast lineation in the seismicity pattern.
Local structures near Charleston are incompletely known at present and the larger structural element, the decollement, is as yet hypothetical.
However, the concentra-tion of seismicity in the Charleston earthquake epicenter both before and af ter the August 31, 1886, event and the lack of post Miocene faulting in the Coastal Plain or any evidence for localizing large earthquakes indicate that the likelihood of a Charleston-sized event in other parts of the Coastal Plain and Piedmont is very low.
Consequently, earthquakes similar to the 1886 event should be considered as having the potential to occur in the vicinity of Charleston and seismic engineering parameters should be determined on that basis."
Giles County. Vircinia Important new information about seismicity in the Giles County, Virginia, area has recently been obtained from monitoring by a dense seismograph network (25, 26, 27).
The seismic moni-toring has revealed that focal depths in the Giles County area range from 5 km to almost 25 km.
Furthermore, the epicenters in. the
~
area reveal a northeast lineation in the seismicity pattern.
Focal depths indicate that activity is below the Paleozoic section, within the Precambrian basement rocks and middle crust.
Focal depths indicate that activity is below the Paleozoic section, within the Precambrian basement rocks and middle crust.
The strike of the epicenter trend of N37oE departs from the Q230.lR-5
The strike of the epicenter trend of N37oE departs from the Q230.lR-5


general trend of the Paleezoic Valley and Ridge axes in the area.
general trend of the Paleezoic Valley and Ridge axes in the area.
This suggests that the seismicity is caused by a fault zone                                                                       ,
This suggests that the seismicity is caused by a fault zone associated with an earlier trend.
associated with an earlier trend.
Recently, an estimate has been made of the maximum possible earthquake for the Giles County area by Prof. G. A. Bollinger (28).
l Recently, an estimate has been made of the maximum possible earthquake for the Giles County area by Prof. G. A. Bollinger
This represents the most significant finding since 1974 related to regional seismology.
;                                            (28). This represents the most significant finding since 1974 related to regional seismology.                                                             From the range of possible fault plane areas, values ranging from Ms 6.0 to Ms 7.0 were determined.                                         In addition, hypothetical isoscismal maps                                     I representing the intensity effects of the maximum sarthquake were prepared (28).
From the range of possible fault plane areas, values ranging from Ms 6.0 to Ms 7.0 were determined.
In addition, hypothetical isoscismal maps representing the intensity effects of the maximum sarthquake were prepared (28).
Attenuation from the Giles County area to the CRBRP site of the maximum hypothetical size earthquake would result in an event less than the design Intensity VIII and, consequently, will not impact the site seismicity.
Attenuation from the Giles County area to the CRBRP site of the maximum hypothetical size earthquake would result in an event less than the design Intensity VIII and, consequently, will not impact the site seismicity.
I TVA addressed this question in a recent response to NRC on                                                                     -
I TVA addressed this question in a recent response to NRC on evaluating the impact of the Bollinger hypothesis on the seismic design of the Watts Bar plant located in the same tectonic province and similar conclusions were reached.
!                                            evaluating the impact of the Bollinger hypothesis on the seismic design of the Watts Bar plant located in the same tectonic province and similar conclusions were reached.
Sneculations concernina the Cause of Eastern United States Seismicity The causes of eastern United States earthquakes are not yet
Sneculations concernina the Cause of Eastern United States Seismicity The causes of eastern United States earthquakes are not yet
{                                             understood.                                         It has been noted that intraplate seismicity shows an association with igneous intrusive rocks (l), and hypotheses concerning the role of intrusive bodies in concentrating stress
{
!                                              have been proposed (29, 30). It has been argued that both i
understood.
seismicity and igneous intrusives are fundamentally related to rif t zones, areas of pre-existing crustal weakness which may be
It has been noted that intraplate seismicity shows an association with igneous intrusive rocks (l), and hypotheses concerning the role of intrusive bodies in concentrating stress have been proposed (29, 30).
!                                              reactivated by the modern stress field (1,16) .
It has been argued that both i
;                                                                                                                              Q23 0 . lR.-6
seismicity and igneous intrusives are fundamentally related to rif t zones, areas of pre-existing crustal weakness which may be reactivated by the modern stress field (1,16).
  . . . .      _ _ _ _ _ , _ . _ . _ _ . . _ _ _ , _ . . . - . - . - . . . - . _ . , , _ . , . . . , _ . . . _ ,__._.____,__,.,-..._m.,
Q23 0. lR.-6
,__._.____,__,.,-..._m.,


i Two recently proposed hypotheses attempt to explain the origin of seismicity in the Piedmont and Coastal Plain provinces of the eastern United States. Under one hypothesis (23) , the 1886 Charleston event is attributed to gravitational backslip along the. Southern Appalachian decollement. Another hypothesis (9,10,
i Two recently proposed hypotheses attempt to explain the origin of seismicity in the Piedmont and Coastal Plain provinces of the eastern United States.
: 11) . proposes that seismicity along the Atlantic Coast is related to reactivated reverse movement on scattered northeast trending
Under one hypothesis (23), the 1886 Charleston event is attributed to gravitational backslip along the. Southern Appalachian decollement.
,          faults formed during Mesozoic rif ting. However, these hypotheses are not viable in the folded Southern Appalachian area.           Recent data from Giles County, Virginia, suggest that a reactivated, northeast trending, high angle, dip slip fault formed in early Paleozoic time may be responsible for the seismicity in that area       _
Another hypothesis (9,10,
(25).
: 11). proposes that seismicity along the Atlantic Coast is related to reactivated reverse movement on scattered northeast trending faults formed during Mesozoic rif ting.
The list of geological references is not included but is in progress and should be complete in about one month.           These references will be forwarded to NRC when they become available.
However, these hypotheses are not viable in the folded Southern Appalachian area.
Recent data from Giles County, Virginia, suggest that a reactivated, northeast trending, high angle, dip slip fault formed in early Paleozoic time may be responsible for the seismicity in that area (25).
The list of geological references is not included but is in progress and should be complete in about one month.
These references will be forwarded to NRC when they become available.
f Q230.lR-7
f Q230.lR-7


f SEISMOLOGY REFERENCES
f SEISMOLOGY REFERENCES 1)
: 1)         Sykes, L. R., Intraplate seismicity, reactivation of pre-i existing zones of weakness, alkaline magmatism, and other tectonism postdating continental fragmentation: Reviews of Geophysics and Space Phyaics, v.16, p. 621-66 8,197 8.
Sykes, L.
2)' zoback, M. L. , and Zoback, M. D. , State of stress in the
R.,
                                  -conterminous United States: Journal of Geophysical Research, v. 85, p. 6113-6156.
Intraplate seismicity, reactivation of pre-i existing zones of weakness, alkaline magmatism, and other tectonism postdating continental fragmentation:
: 3)         Mixon, R. B. , and Newell, W. L., Stafford f ault system:
Reviews of Geophysics and Space Phyaics, v.16, p. 621-66 8,197 8.
structures documenting Cretaceous and Tertiary deformation along the Fall Line in northeastern Virginia: Geology, v.
2)' zoback, M. L., and Zoback, M. D., State of stress in the
-conterminous United States:
Journal of Geophysical Research, v. 85, p. 6113-6156.
3)
Mixon, R. B., and Newell, W.
L.,
Stafford f ault system:
structures documenting Cretaceous and Tertiary deformation along the Fall Line in northeastern Virginia:
Geology, v.
5, p. 437-440, 1977.
5, p. 437-440, 1977.
: 4)         Prowell, D. C. , and O' Conner, B. J. , Belair fault zone:
4)
evidence of Tertiary fault displacement in eastern Georgia:,      ,
Prowell, D. C., and O' Conner, B. J., Belair fault zone:
evidence of Tertiary fault displacement in eastern Georgia:,
Geology, v. 6, p. 6 82-684,197 8.
Geology, v. 6, p. 6 82-684,197 8.
: 5)         Behrendt, J. C., Hamilton, R. M. , Ackermann, H. D. , and Henry, V. J. , Cenozoic f aulting in the vicinity of the Charleston, South Carolina, earthquake zone: Geology, v. 9, no. 3, 1981.
5)
: 6)         York, J. E., and Oliver, J. B. , Cretaceous and Cenozoic f aulting in eastern North America, Geological Society of America Bulletin, v. 87, p. 1105-1114, 1976.
Behrendt, J.
7}         Mixon, R. B. , and Newell, W. L. , The f aulted Coastal Plain margin at Fredericksburg, Virginia: R. B. Mixon and W. L.
C.,
Hewell, U.S. Geological Survey, Reston, Virginia, Guidebook for Tenth Annual Virginia Geology Field Conference, October
Hamilton, R. M., Ackermann, H. D., and Henry, V. J., Cenozoic f aulting in the vicinity of the Charleston, South Carolina, earthquake zone:
,                                    13-14, 197 8. 50 p. , 197 8.
Geology, v. 9, no. 3, 1981.
: 8)         Howard, K. A., and others, Preliminary map of young faults in the United States as a guide to possible f ault activity:
6)
York, J.
E.,
and Oliver, J. B., Cretaceous and Cenozoic f aulting in eastern North America, Geological Society of America Bulletin, v. 87, p. 1105-1114, 1976.
7}
Mixon, R. B., and Newell, W. L., The f aulted Coastal Plain margin at Fredericksburg, Virginia:
R. B. Mixon and W. L.
Hewell, U.S. Geological Survey, Reston, Virginia, Guidebook for Tenth Annual Virginia Geology Field Conference, October 13-14, 197 8.
50 p., 197 8.
8)
Howard, K.
A.,
and others, Preliminary map of young faults in the United States as a guide to possible f ault activity:
U.S. Geological Survey Miscellaneous Field Studies Map MF-916, scale 1:5,000,000,1978.
U.S. Geological Survey Miscellaneous Field Studies Map MF-916, scale 1:5,000,000,1978.
: 9)         Wentworth, C. M., and Mergner-Keefer, Marcia, Atlantic-coast reverse fault domain: probable source of east-coast seismicity: Geological Society of America Abstracts with Programs, v. 12, p. 547, 1980.
9)
: 10)           Wentworth, C. M., and Mergner-Keefer, Marcia, Regenerate faults of small Cenozoic offset as probable earthquake sources in the Southeastern United States: U.S. Geological Survey Open-File Report 81-356, 1981.
Wentworth, C.
M.,
and Mergner-Keefer, Marcia, Atlantic-coast reverse fault domain:
probable source of east-coast seismicity:
Geological Society of America Abstracts with Programs, v. 12, p. 547, 1980.
10)
Wentworth, C.
M.,
and Mergner-Keefer, Marcia, Regenerate faults of small Cenozoic offset as probable earthquake sources in the Southeastern United States:
U.S. Geological Survey Open-File Report 81-356, 1981.
Q230.lR-8
Q230.lR-8
: 11) Wentworth, C. M. , and Mergner-Keef er, Marcia, Reverse fault-
 
;              ing along the eastern seaboard cad the potential for large earthquakes in Proc. Earthquakes and earthquake engineering
11)
                - eastern United States, Sept. 14-16, 1981, Knoxville, Ten-nessee.
Wentworth, C. M., and Mergner-Keef er, Marcia, Reverse fault-ing along the eastern seaboard cad the potential for large earthquakes in Proc. Earthquakes and earthquake engineering
: 12) Cook, F. A. , Albaugh, D. S., Brown, L. D., Kaufman, S.,
- eastern United States, Sept. 14-16, 1981, Knoxville, Ten-nessee.
Oliver, J. E., and Hatcher, R. D., Jr., Thin-skinned tec-i tonics in the crystalline southern Appalachians; COCORP seismic-reflection profiling of the Blue Ridge and Piedmont:
12)
Geology, v. 7. , p. 563-567, 197 9.
Cook, F. A., Albaugh, D.
: 13) Harris, L. D., and Bayer, K. C., Sequential developments of the Appalachian orogen above a master decollement--A hypo-thesis: Geology, v. 7, p. 56 8-572,1979.
S.,
: 14) Kane, M. F., Simpson, R. W., and Osberg, P. H., New gravity evidence of crust-mantle structure and seismicity in the Appalachians (abs.): Transactions of the American Geophy-sical Union, v. 62, no.17, p. 402,1981.
Brown, L.
: 15) Seay, W. M., and Hopkins, R. A., Southern Appalachian tectonic study: ja Proc. Earthquakes and earthquake engi-neering - the eastern United States, Sept. 14-16, 1981, Knoxville, Tennessee.
D., Kaufman, S.,
: 16) Hamilton, R. M. , Geologic Origin of Eastern U.S. Seismicity, in Proc. Earthquakes and earthquake engineering - the easterri' United States, Sept. 14-16, 1981, Knoxville, Tennessee.
Oliver, J.
: 17) Gohn, G. S., Higgins, B. B. , Smith, C. C. , and Owens, J. P. ,
E.,
Lithostratigraphy of the deep corehole (Clubhouse Cross-roads Corehole 1) near Charleston, South Carolina: U.S.
and Hatcher, R.
D., Jr., Thin-skinned tec-tonics in the crystalline southern Appalachians; COCORP i
seismic-reflection profiling of the Blue Ridge and Piedmont:
Geology, v. 7., p. 563-567, 197 9.
13)
Harris, L.
D.,
and Bayer, K.
C.,
Sequential developments of the Appalachian orogen above a master decollement--A hypo-thesis:
Geology, v. 7, p. 56 8-572,1979.
14)
Kane, M.
F., Simpson, R. W.,
and Osberg, P.
H.,
New gravity evidence of crust-mantle structure and seismicity in the Appalachians (abs.):
Transactions of the American Geophy-sical Union, v. 62, no.17, p. 402,1981.
15)
Seay, W.
M.,
and Hopkins, R.
A.,
Southern Appalachian tectonic study:
ja Proc. Earthquakes and earthquake engi-neering - the eastern United States, Sept. 14-16, 1981, Knoxville, Tennessee.
16)
Hamilton, R. M., Geologic Origin of Eastern U.S. Seismicity, in Proc. Earthquakes and earthquake engineering - the easterri' United States, Sept. 14-16, 1981, Knoxville, Tennessee.
17)
Gohn, G.
S.,
Higgins, B. B., Smith, C. C., and Owens, J. P.,
Lithostratigraphy of the deep corehole (Clubhouse Cross-roads Corehole 1) near Charleston, South Carolina:
U.S.
Geological Survey Professional Paper 1028-E, p. 59-70, 1977.
Geological Survey Professional Paper 1028-E, p. 59-70, 1977.
l           18) Talwani, P., A preliminary shallow crustal model between Columbia and Charleston, South Carolina, determined from quarry blast monitoring and other geophysical data: U.S.
l 18)
Geological Survey Professional Paper 1028-M, p.177-187, 1977.                                                           ,
: Talwani, P., A preliminary shallow crustal model between Columbia and Charleston, South Carolina, determined from quarry blast monitoring and other geophysical data:
: 19) Ackermann, H. D., Exploring the Charleston, South Carolina area with seismic refraction - a preliminary study: U.S.
U.S.
Geological Survey Professional Paper 1028-M, p.177-187, 1977.
19)
Ackermann, H.
D.,
Exploring the Charleston, South Carolina area with seismic refraction - a preliminary study:
U.S.
Geological Survey Professional Paper 1028-L, p.167-175, 1977.
Geological Survey Professional Paper 1028-L, p.167-175, 1977.
: 20) Phillips, J. D., Daniels, D. L., Zietz, I., and Popenoe, P.,
20)
Phillips, J.
D.,
Daniels, D.
L.,
: Zietz, I., and Popenoe, P.,
Geophysical studies of the Charlestora, South Caroina area -
Geophysical studies of the Charlestora, South Caroina area -
onshore aeromagnetic map: U.S. Geological Survey Miscellaneous Field Studies Map MF-1022-A, 1978.
onshore aeromagnetic map:
U.S. Geological Survey Miscellaneous Field Studies Map MF-1022-A, 1978.
Q230.lR-9
Q230.lR-9
: 21) Long, L. T., and Champion, J. W., Jr., Bouguer gravity map of the Summerville-Charleston, South Carolina, epicentral zone and tectonic implications: U.S. Geological Survey Professional Paper 1028-K, p.151-166,1977.
 
: 22) Tarr, A. C., Recent seismicity near Charleston, Scuth Carolina, and its relationship to the August 31, 1886 earthquake, in Rankin, D. W. (ed.) Studies Related to the Charleston, South Carolina carrbquake of 1886--a preliminary report: U.S. Geological Survey Professional Paper 1028, p.
21)
Long, L.
T.,
and Champion, J. W., Jr., Bouguer gravity map of the Summerville-Charleston, South Carolina, epicentral zone and tectonic implications:
U.S. Geological Survey Professional Paper 1028-K, p.151-166,1977.
22)
Tarr, A.
C.,
Recent seismicity near Charleston, Scuth Carolina, and its relationship to the August 31, 1886 earthquake, in Rankin, D. W. (ed.) Studies Related to the Charleston, South Carolina carrbquake of 1886--a preliminary report:
U.S. Geological Survey Professional Paper 1028, p.
43-57, 1977.
43-57, 1977.
: 23) Armbruster, J. G. , and Seeber, L. , Intraplate seismicity in the northeastern United States and the Appalachian detachment: la Proc. Earthquakes and earthquake engi-neering - the eastern United States, Sept. 14-16, 1981, Knoxville, Tennessee, i
23)
: 24) Official Communication, U.S. Department of Interior, Geo-logical Survey, to Dr. Robert E. Jackson, Division of Engi-neering, U.S. Nuclear Regulatory Commission, December 30, 1980.
Armbruster, J. G., and Seeber, L., Intraplate seismicity in the northeastern United States and the Appalachian detachment:
: 25) Bollinger, G. A., and Wheeler, R. L. , The Giles County, Virginia, seismogenic zone: Geological Society of America Abstracts with Program, v.12, no. 7, p. 389,1980.
la Proc. Earthquakes and earthquake engi-neering - the eastern United States, Sept. 14-16, 1981, Knoxville, Tennessee, i
                                          .                              26) Bollinger, G. A., and Wheeler, R. L. , The Giles County, Virginia, seismic network - Monitoring results, 1978-1980:
24)
Official Communication, U.S. Department of Interior, Geo-logical Survey, to Dr. Robert E. Jackson, Division of Engi-neering, U.S. Nuclear Regulatory Commission, December 30, 1980.
25)
Bollinger, G.
A.,
and Wheeler, R. L., The Giles County, Virginia, seismogenic zone:
Geological Society of America Abstracts with Program, v.12, no. 7, p. 389,1980.
26)
Bollinger, G.
A.,
and Wheeler, R. L., The Giles County, Virginia, seismic network - Monitoring results, 1978-1980:
Earthquake Notes, v. Si, p. 14, 1980.
Earthquake Notes, v. Si, p. 14, 1980.
: 27) Bollinger, G. A., and Sibol, M. S., Pault source models for Virginia earthquakes: Earthquake Notes, v. 52, p. 61, 1981.
27)
i
Bollinger, G.
: 28) Bollinger, G. A. , The Giles County, Virginia seismic zone -
A.,
configuration and hazard assessment: in Proc. Earthquakes and earthquake engineering - the eastern United States, Sept. 14-16, 1981, Knoxville, Tennessee.
and Sibol, M.
: 29) Kane, M. F., Correlation of major eastern earthquake centers with mafic-ultramafic masses: U.S. Geological Survey Pro-fessional Paper 1028-0, p. 199-204, 1977.
S.,
: 30) McKeown, F. A. , Hypothesis: many earthquakes in the central and southeastern United States are causally related to mafic
Pault source models for Virginia earthquakes:
,                                                                            intrusive bodies: U.S. Geological Survey Journal of Research v. 6, p. 41-50,1978.
Earthquake Notes, v. 52, p. 61, 1981.
Q230.lR-10                                 !
28)
I
Bollinger, G.
A., The Giles County, Virginia seismic zone -
i configuration and hazard assessment:
in Proc. Earthquakes and earthquake engineering - the eastern United States, Sept. 14-16, 1981, Knoxville, Tennessee.
29)
Kane, M.
F.,
Correlation of major eastern earthquake centers with mafic-ultramafic masses:
U.S. Geological Survey Pro-fessional Paper 1028-0, p. 199-204, 1977.
30)
McKeown, F. A., Hypothesis:
many earthquakes in the central and southeastern United States are causally related to mafic intrusive bodies:
U.S. Geological Survey Journal of Research v. 6, p. 41-50,1978.
Q230.lR-10 I


L     -                                                                      l i
L i
ITEM 230.2R i
ITEM 230.2R i
Based on the site investigation' data presented in the PSAR, the upper siltstone horizon of Unit A, within which the structure foundations are to be placeG, is relatively devoid of solution features below foundation grade. However, it is "not obvious that the underlying limestone unit of the Chickamauga Group, Unit A and the much deeper Knox group do not contain significant cavities. Determine the maximum size cavity, based on regional studies of karst features in these rock units, that could exist beneath the plant without being detected by the investigations performed. Evaluate the capability of the foundation rock unit (Unit A, upper silt-stone) to bridge such cavities.
Based on the site investigation' data presented in the PSAR, the upper siltstone horizon of Unit A, within which the structure foundations are to be placeG, is relatively devoid of solution features below foundation grade.
Summary of Resconse
However, it is "not obvious that the underlying limestone unit of the Chickamauga Group, Unit A and the much deeper Knox group do not contain significant cavities.
: 1)   The potential for cavities and other karst features within the Unit A Limestone of the Chickamauga Group below the proposed base excavation level for the Nuclear Island is considered minimal. It is believed that existing boring data, results of the test grouting program, and the planned bedrock verification program as addressed in the PSAR will be sufficient to confirm the homogeneity of the Unit A Limestone. This verification program is scheduled to commence shortly and results will be provided upon completion.
Determine the maximum size cavity, based on regional studies of karst features in these rock units, that could exist beneath the plant without being detected by the investigations performed.
: 2)   Research studies on the regional geology have shown that weathering in the Knox has been encountered to depths up to 200 feet. Geotechnical investigations at the site have indicated a depth of weathering in the Knox not exceeding 100 feet. Consequently, with a minimum depth of cover above the Knox of 450 feet, subsidence problems will not occur beneath the CRBRP site.
Evaluate the capability of the foundation rock unit (Unit A, upper silt-stone) to bridge such cavities.
Summary of Resconse 1)
The potential for cavities and other karst features within the Unit A Limestone of the Chickamauga Group below the proposed base excavation level for the Nuclear Island is considered minimal.
It is believed that existing boring data, results of the test grouting program, and the planned bedrock verification program as addressed in the PSAR will be sufficient to confirm the homogeneity of the Unit A Limestone.
This verification program is scheduled to commence shortly and results will be provided upon completion.
2)
Research studies on the regional geology have shown that weathering in the Knox has been encountered to depths up to 200 feet.
Geotechnical investigations at the site have indicated a depth of weathering in the Knox not exceeding 100 feet.
Consequently, with a minimum depth of cover above the Knox of 450 feet, subsidence problems will not occur beneath the CRBRP site.
Q230.2R-1
Q230.2R-1


===Response===
===Response===
l EVALUATION OF THE POTENTIAL CAVITIES IN THE KNOX FORMATION The size, shape, frequency, and extent at depth of karstic cavities depend upon 1) the extent of the weathering zone, 2) the presence or absence of impervious strata, and 3) local geologic structures (f aults) . In general, solution cavities, both ancient and recent, may be open, or completely filled with clastic material, or may be water-filled conduits.                         Ancient, or paleo-karst cavities, are typically filled with recemented material and are as competent as the host rock around them.
EVALUATION OF THE POTENTIAL CAVITIES IN THE KNOX FORMATION The size, shape, frequency, and extent at depth of karstic cavities depend upon 1) the extent of the weathering zone, 2) the presence or absence of impervious strata, and 3) local geologic structures (f aults).
Weathering within the Oak Ridge reservation is usually limited to i                       the upper 100 feet of the surface. The weathering of rock is most severe in the local limestone and dolomite units, leaving karstic terrain with clay and chert residuum for soil.                         Below the weathering zone, the rock is generally jointed, but sound,.with joint strength increasing and open joint frequency sacreasing with depth.
In general, solution cavities, both ancient and recent, may be open, or completely filled with clastic material, or may be water-filled conduits.
The development of karst features at the surf ace and at depth in the rocks of the Knox Group is well documented. Sinkholes and cavities are very frequent and have created many problems in the foundation of structures throughout the entire region. The Knox Group has been described as a massive dolomite with a paleokarst upper unit. This upper unit reflects an ancient karstic erosional surface which was subsequently beveled and covered by the Chickamauga Group. According to local experts and available references, this paleokarst unit is now a very competent rock.
Ancient, or paleo-karst cavities, are typically filled with recemented material and are as competent as the host rock around them.
The ancient solution cavities, joints and caves, were fi1I~ed with residuum and recemented to the point that it is now difficult to detect the paleokarst unit from the overlying and underlying carbonate units. These paleokarst features are well documented in the zinc district of northeastern Tennessee where they are                           -
Weathering within the Oak Ridge reservation is usually limited to i
always filled and cemented and do not represent a hazard.
the upper 100 feet of the surface.
  !                                  .                      Q230.2R-2
The weathering of rock is most severe in the local limestone and dolomite units, leaving karstic terrain with clay and chert residuum for soil.
Below the weathering zone, the rock is generally jointed, but sound,.with joint strength increasing and open joint frequency sacreasing with depth.
The development of karst features at the surf ace and at depth in the rocks of the Knox Group is well documented.
Sinkholes and cavities are very frequent and have created many problems in the foundation of structures throughout the entire region.
The Knox Group has been described as a massive dolomite with a paleokarst upper unit.
This upper unit reflects an ancient karstic erosional surface which was subsequently beveled and covered by the Chickamauga Group.
According to local experts and available references, this paleokarst unit is now a very competent rock.
The ancient solution cavities, joints and caves, were fi1I~ed with residuum and recemented to the point that it is now difficult to detect the paleokarst unit from the overlying and underlying carbonate units.
These paleokarst features are well documented in the zinc district of northeastern Tennessee where they are always filled and cemented and do not represent a hazard.
Q230.2R-2


The only areas of karst with active solutioning exist within zones of active weathering, at or close to the contact between the Knox and the Chickamauga groups, and at depths ranging from 0 to 200 feet. Tho size of the cavities varies from enlarged joints to several tens, and occasionally hundreds of feet in span, Geotechnical investigation at the site indicated a maximum depth of weathering not exceeding 100 feet.
The only areas of karst with active solutioning exist within zones of active weathering, at or close to the contact between the Knox and the Chickamauga groups, and at depths ranging from 0 to 200 feet.
To summarize our own experience and available data the following f can be concluded: 1) Frequent and large open cavities (up to several hundred feet) occur within the Knox Group. These solution features are exclusively developed at shallow depth (no' deeper than 200 feet) and in relation to the zone of weathering.
Tho size of the cavities varies from enlarged joints to several tens, and occasionally hundreds of feet in span, Geotechnical investigation at the site indicated a maximum depth of weathering not exceeding 100 feet.
To summarize our own experience and available data the following f
can be concluded:
: 1) Frequent and large open cavities (up to several hundred feet) occur within the Knox Group.
These solution features are exclusively developed at shallow depth (no' deeper than 200 feet) and in relation to the zone of weathering.
: 2) Many cavities appear to be located at or close to the unconformity existing between the Knox and Chickamauga Groups.
: 2) Many cavities appear to be located at or close to the unconformity existing between the Knox and Chickamauga Groups.
When this unconformity is at depth beneath the zone of weathering the karst features are ancient and filled, and the filling material is recemented.
When this unconformity is at depth beneath the zone of weathering the karst features are ancient and filled, and the filling material is recemented.
[               In conclusion, it would appear Ebat subsidence is not a problem below the CRBRP site and in view of the shallow depth of weathering, it would not be necessary to conduct hypothetical analytical studies to determine the maximum size cavity related   ,
[
to depth and strength properties of overlying strata.
In conclusion, it would appear Ebat subsidence is not a problem below the CRBRP site and in view of the shallow depth of weathering, it would not be necessary to conduct hypothetical analytical studies to determine the maximum size cavity related to depth and strength properties of overlying strata.
I i
I i
Q230.2R-3
Q230.2R-3


BIBLIOGRAPHY Franklin, and others, 1981. Foundation Considerations in Siting of Nuclear Facilities in Karst Terrains and Other Areas Susceptible to Ground Collapse                                     NUREG/CR-2062.
BIBLIOGRAPHY Franklin, and others, 1981.
GSK, 1950. Application of Geology to Engineering Practices                                                     GSA Law Engineering Testing Company,1974, Clinch River Breeder Reactor Plant, Preliminary Safety Analysis Report, Section 2.5.
Foundation Considerations in Siting of Nuclear Facilities in Karst Terrains and Other Areas Susceptible to Ground Collapse NUREG/CR-2062.
Proj ect Management Corporation,1975. Clinch River Breeder Reactor Plant, Environmental Report, Section 2.4.
GSK, 1950. Application of Geology to Engineering Practices GSA Law Engineering Testing Company,1974, Clinch River Breeder Reactor Plant, Preliminary Safety Analysis Report, Section 2.5.
Proj ect Management Corporation,1975.
Clinch River Breeder Reactor Plant, Environmental Report, Section 2.4.
O l
O l
l Q230.2R-4
l Q230.2R-4
Line 209: Line 382:
Furnish a map and summary discussion of the relationship beneath the Pleistocene / Pliocene high terrace deposits and geologic structures at the site, particularly the shear zone encountered in core borings.
Furnish a map and summary discussion of the relationship beneath the Pleistocene / Pliocene high terrace deposits and geologic structures at the site, particularly the shear zone encountered in core borings.
RAFponse In response to this question we are providing Figure 2.5-5 from the PSAR which is the site geologic map.
RAFponse In response to this question we are providing Figure 2.5-5 from the PSAR which is the site geologic map.
Although terrace deposit studies have been used as a tool to locate and date faulting and other geologic structures, they were not used for this purpose during the CRBRP licensing investigation. The age of geologic structures at and near the 4
Although terrace deposit studies have been used as a tool to locate and date faulting and other geologic structures, they were not used for this purpose during the CRBRP licensing investigation.
site (Copper Creek, White Oak Mountain, and other faults as well as the shear zone within the Chickamauga Group) were determined by other lines of evidence. At the time of the licensing study, no other such terrace study has been carried out in eastern Tennessee within the Valley and Ridge geologic province. Since dhat time, one such study had been identified. This study was perf ormed by P. A. Delcourt of the University of Tennessee (Knoxville) along the Little Tennessee River from Chilhowee Dam to the Tellico Dam (approximately 10 miles southeast of the CRBRP site). Delcourt* has mapped nine different terrace deposits along the river and has radiocarbon age dates on the three youngest terraces.
The age of geologic structures at and near the site (Copper Creek, White Oak Mountain, and other faults as well 4
* Delcourt, P. A. ,1981, Personal Communication to Law Engi-neering Testing Company.
as the shear zone within the Chickamauga Group) were determined by other lines of evidence.
At the time of the licensing study, no other such terrace study has been carried out in eastern Tennessee within the Valley and Ridge geologic province.
Since dhat time, one such study had been identified.
This study was perf ormed by P. A. Delcourt of the University of Tennessee (Knoxville) along the Little Tennessee River from Chilhowee Dam to the Tellico Dam (approximately 10 miles southeast of the CRBRP site).
Delcourt* has mapped nine different terrace deposits along the river and has radiocarbon age dates on the three youngest terraces.
* Delcourt, P. A.,1981, Personal Communication to Law Engi-neering Testing Company.
Q23 0.3 R-1
Q23 0.3 R-1


The distribution and state of presentation of the terrace deposits along the Clinch River is not documented in the geologic literature; therefore, no assessment can be made concerning their i                         relationship to the terrace deposits mapped by Delcourt along the Little Tennessee River or directly to the structures identified at the site. However, during the geologic mapping at the site, the general distribution of terrace material was plotted (PSAR Figure 2.5-5). Terrace deposits form a veneer over portions of             ,
The distribution and state of presentation of the terrace deposits along the Clinch River is not documented in the geologic literature; therefore, no assessment can be made concerning their i
the site. This material is high-level alluvium deposited by the Clinch River when stream levels were much higher than at the present. Such deposits are generally regarded as Pleistocene to Pliocene in age. The terrace deposits consist mainly of orange and red silty clay with thin layers of rounded quartz, chart, and quartzite gravel. A limited number of borings have penetrated the terrace deposits extending to depths ranging from 8 to 19.5 feet below the ground surface.
relationship to the terrace deposits mapped by Delcourt along the Little Tennessee River or directly to the structures identified at the site.
For a study to be conducted on the terrace deposits, it would first be necessary to establish whether sufficient material exists in the near vicinity of the CRBRP site to permit developing a correlation with geologic structures at the site
However, during the geologic mapping at the site, the general distribution of terrace material was plotted (PSAR Figure 2.5-5).
;                        including the shear zone encountered in the Chickamauga Group.
Terrace deposits form a veneer over portions of the site.
This material is high-level alluvium deposited by the Clinch River when stream levels were much higher than at the present.
Such deposits are generally regarded as Pleistocene to Pliocene in age.
The terrace deposits consist mainly of orange and red silty clay with thin layers of rounded quartz, chart, and quartzite gravel.
A limited number of borings have penetrated the terrace deposits extending to depths ranging from 8 to 19.5 feet below the ground surface.
For a study to be conducted on the terrace deposits, it would first be necessary to establish whether sufficient material exists in the near vicinity of the CRBRP site to permit developing a correlation with geologic structures at the site including the shear zone encountered in the Chickamauga Group.
Detailed surf ace mapping and surveying in conjunction with subsurf ace mapping (trenching with a backhoe) would be required.
Detailed surf ace mapping and surveying in conjunction with subsurf ace mapping (trenching with a backhoe) would be required.
Correlation of individual terraces would have to be done by age dating (radiocarbon or palynology), comparison of lithologic composition of the terraces, or possibly by heavy mineral analyses of terrace material. Plotting the distribution of the terraces on longitudinal profiles would allow for detection of offsets in the terraces on the regional scale, while smaller scale offsets would have to be recognized in the field, generally from the trench study.
Correlation of individual terraces would have to be done by age dating (radiocarbon or palynology), comparison of lithologic composition of the terraces, or possibly by heavy mineral analyses of terrace material.
Plotting the distribution of the terraces on longitudinal profiles would allow for detection of offsets in the terraces on the regional scale, while smaller scale offsets would have to be recognized in the field, generally from the trench study.
It is considered that a program of work of the nature described above is not warranted for the CRBRP site because, as outlined in the PSAR, other lines of evidence were sufficient to conclude Q230.3R-2
It is considered that a program of work of the nature described above is not warranted for the CRBRP site because, as outlined in the PSAR, other lines of evidence were sufficient to conclude Q230.3R-2


o 8
o 8
that all structural elements including the shear zone are ancient l and are not considered capable.
that all structural elements including the shear zone are ancient and are not considered capable.
i l
i l
l Q230.3 R-3 1
l Q230.3 R-3 1


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./.-
                                                                                                                                                                ,#                                  g 2              '(
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i             ./                                                 s                     o y-                     ...*
                                                                                                                                                                                                                  \               7>,
                                                                                                                                                                            .o:
                                                                                                                  /
                                                                                                                            ./.-               ..                        .
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y.
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                                                                                            ,-                                  /                                                                                                c N                                                                                                                                                                                                       ,
/
                                                                                                                                                                                                                                  ~
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                          ~ ~                    - . - .                                    ...              c.c      w s.
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                                                                                                                                                                                                              ;:            I u v( .                                                                   ?.~.
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& _,'':4. L h M it :z.. u v.
3                                                                                                                                      .2 s';..                                                            ( M yh ,'                      8                      '
(
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;P.gg,s 4,,)g' ' ' ~ l ;$,.
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w 5'gp; h'\\} '' ''\\ / ~ -
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,,g.
                                                                                                                                    .             . ':          ,,              .                                              C
. 2
                    % . b ,,,4 'h;'c. \ '? g.9 ''
( M yh,'
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8 3
:, .. \ ., . \w.s                   , .:.                 .
m h ch.,~$y E?
                              , .n~ :.G ; h .'
/
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w d
                                                                                                          ~ ,
,C f.
                                                                                                                            * % ' <~'. .-.q
:.Q5{.k%'- '. '.,, '~[k f~/
                                                                                                                                                                          ". ' :; *.:..      : l
/
                                                                                                                                                                                                    ,          . d.'
~
                                                                          '!3b.%'.''; .Q                              [ '%,' .: b. G, ,'' 'X :: ..,.Q
-~
                                                                                                                                                                                          'i             ,,,,,
e t
              -- &'f &^~.&                                  ~ - W ' " ~ . ,s;
..-Q., ' ;[ 7
                                                                                                                                              ~
. s, S, ' ''' (, b..
                                                                                                                                                            ^ ; :,.)                       i
. :.,7," 4. Q [
                                                                                          --            .           .     ....v
9 ~..-
                                                                                                                                ;        ;          '          i
\\
                                                                                                                                                                                        /
s
4 7 ' ., '
.t l
g     . ,%.N                                            , ,.5 ,
C
                              % g. . .
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                                                                                                                                                                            /\
.'' s'g{,
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. p.
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                                                                                                                  'b'/
%. b,,,4 'h;'c. \\ '? g.9 ''
                                                                                                                  - s
r
                                                                                                                                  /
.; i.. s
                                                                                                                                                                  /
.?
                                                                                                                                                                      /
b
s sN     N                                                                                     e a
* % ' <~' ". ' : *.:... d.'
v
. \\w.s
                                                                    \                                                                      /
.. \\.,
w s_-                       '                                                                                                        D m
: l
I*                            !'                            !*                                                                Amend. 59 Dec. 1980 2.5-94
:.G ; h
~,
~q ~u -)
..-.q n~
-- &'f &^~.& '!3b.%'.''; [ '%,.: b. G,,'' 'X ::..,.Q
' i
.Q '
~ - W ' " ~.,s;
~
^ ; :,.)
i
....v i
,,.5,
.,%.N
/
4 7 '., '
g
% g...
. 'b'/
/\\
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/
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/
s sN N
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m I
Amend. 59 Dec. 1980 2.5-94


I ITEM 290.1R Provide a succinct summary and discussion in table form, by ER section, of differences between currently projected station design and environmental effects (including those that would degrade, and those that would enhance environ-mental conditions) and the effects discussed in the environ-mental reports submitted in 1975, Amendments 1 through 7.
I ITEM 290.1R Provide a succinct summary and discussion in table form, by ER section, of differences between currently projected station design and environmental effects (including those that would degrade, and those that would enhance environ-mental conditions) and the effects discussed in the environ-mental reports submitted in 1975, Amendments 1 through 7.
l Summary of Response:
l Summary of Response:
The changes to CRBRP design which have occurred since 1977 and the expected environmental effects of these changes are summarized succinctly by ER section in the attached table. Most of the ER sections have already been modified to reflect the design changes and their environmental effects.       The sections that are yet to be modified in future amendments to the ER are highlighted in boxes in the table and for your convenience are listed below.,
The changes to CRBRP design which have occurred since 1977 and the expected environmental effects of these changes are summarized succinctly by ER section in the attached table.
ER               Summary of Change (s) to be Section         Reflected in Future ER Amendments 1.0             Heterogeneous core replaces homogeneous core arrangement. This section will also address the supplement to the LMFBR Program Final Environmental Statement.
Most of the ER sections have already been modified to reflect the design changes and their environmental effects.
2.2             Inclusion of the most recent demographic data available.
The sections that are yet to be modified in future amendments to the ER are highlighted in boxes in the table and for your convenience are listed below.,
3.5             Numerous refinements in the plant systems designs that result in changes to the effluent from the plant.
ER Summary of Change (s) to be Section Reflected in Future ER Amendments 1.0 Heterogeneous core replaces homogeneous core arrangement.
4.1.2.1         Construction water consumption estimates have been increased.
This section will also address the supplement to the LMFBR Program Final Environmental Statement.
2.2 Inclusion of the most recent demographic data available.
3.5 Numerous refinements in the plant systems designs that result in changes to the effluent from the plant.
4.1.2.1 Construction water consumption estimates have been increased.
Q290.lR-1
Q290.lR-1


r-5.2         Changes to radiological source term and pathway analysis.
r-5.2 Changes to radiological source term and pathway analysis.
5.3         Changes to the radiological source term, pathway and population data.
5.3 Changes to the radiological source term, pathway and population data.
5.4.3       Instead of being directly discharged to the Clinch River via catch basins, storm water collected by the roof and yard drains is sent via the storm drainage system to the impounding ponds for settlement and ultimate discharge to the river.
5.4.3 Instead of being directly discharged to the Clinch River via catch basins, storm water collected by the roof and yard drains is sent via the storm drainage system to the impounding ponds for settlement and ultimate discharge to the river.
5.8.1       Increased total acreage commitment.
5.8.1 Increased total acreage commitment.
6.1.4.2     Inclusion of most recent demographic data available.
6.1.4.2 Inclusion of most recent demographic data available.
Chapter 7   X/Q's based on a complete on-site meteorology data base have been provided; changes to the plant design and analysis methods which result in modified source terms require updated dose calculations.
Chapter 7 X/Q's based on a complete on-site meteorology data base have been provided; changes to the plant design and analysis methods which result in modified source terms require updated dose calculations.
Chapter 8   Revised construction manpower requirements, 1980 census and other recent demographics data.
Chapter 8 Revised construction manpower requirements, 1980 census and other recent demographics data.
Chapter 9   A supplement to the LMFBR Program Final Environmental Statement will be issued; responses will be provided for recent NRC questions.
Chapter 9 A supplement to the LMFBR Program Final Environmental Statement will be issued; responses will be provided for recent NRC questions.
Q290.1R-2
Q290.1R-2


CRBRP ENVIRONMENTAL REPORT REVIEW                                                 PAGE 1 ER SECTION       REVISED                           ITEN                                                 DESCRIPTION OF CHANGE                                                       ENVIRONMENTAL EFFECT l
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 1 ER SECTION REVISED ITEN DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT l
1.0       TO BE PROVIDED                                                         Heterogeneous core replaces homogeneous core arrangement (See Section 3.8) . This Section will also address the supplement to the LMFBR Program Final Environmental Statement.
1.0 TO BE PROVIDED Heterogeneous core replaces homogeneous core arrangement (See Section 3.8). This Section will also address the supplement to the LMFBR Program Final Environmental Statement.
2.1       2.1-1 thru 2.1-10                     Plant                             Construction site acreage increased. Plant See Section 4.0 arrangements updated. Five impounding ponds were identified and located on Figure 2.1-3.
2.1 2.1-1 thru 2.1-10 Plant Construction site acreage increased. Plant See Section 4.0 arrangements updated. Five impounding ponds were identified and located on Figure 2.1-3.
2.2       TO BE PROVIDED                                                           Evaluation of demographic changes in process. Changes will be provided in a future amendment.
2.2 TO BE PROVIDED Evaluation of demographic changes in process. Changes will be provided in a future amendment.
2.3                                                                                   No change.
2.3 No change.
2.4       2.4-15 thru                           Geology                           Changed to provide data for 24 additional                                       Environmentally inconsequential.
2.4 2.4-15 thru Geology Changed to provide data for 24 additional Environmentally inconsequential.
2.4.22                                                                   boreholes, taken from September 1976 to June 1977.
2.4.22 boreholes, taken from September 1976 to June 1977.
2.5 t
2.5 t
2.5.1     2.5.1 thru 2.5-10                     River                             Updated river levels, flows, temperatures,                                       Environmentally inconsequential.
2.5.1 2.5.1 thru 2.5-10 River Updated river levels, flows, temperatures, Environmentally inconsequential.
etc.
etc.
2.5.2 2.5.2.1                                                                             No change.
2.5.2 j
2.5.2.2                                                                             No change.                                                                                                             ,
2.5.2.1 No change.
i 2.5.2.3                                                                             No change.
2.5.2.2 No change.
2.5.2.4   2.5-18                                 Ground-                           Established piezometric gradient.                                               Environmentally inconsequential.      .
i 2.5.2.3 No change.
water 2.5.2.5                                                                             No change.                                                                                                             ,
}
2.5.2.6                                                                             No change.
2.5.2.4 2.5-18 Ground-Established piezometric gradient.
2.5.2.7                                                                             No change.
Environmentally inconsequential.
2.6       2.6-1 thru                             Neteor-                         Updated to include data accumulated                                             Environmentally inconsequential.
water l
2.6-99                                   ology                           using permanent meteorological tower.
1 2.5.2.5 No change.
2.5.2.6 No change.
2.5.2.7 No change.
i 2.6 2.6-1 thru Neteor-Updated to include data accumulated Environmentally inconsequential.
2.6-99 ology using permanent meteorological tower.
i I
i I
_ _ _ . _ _      -.-              __ ___                      _ _ _ _ _ _ _ -                                    _                                  _______m_ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _            -_ _ _ _
m


CRBRP ENVIRONMENTAL REPORT REVIEW                         PAGE 1 ER                                                                                                                                     J SECTION     REVISED                       ITEM                   DESCRIPTION OF CHANGE                             ENVIRONMENTAL EFFECT   I mm,   . __ _ _ ,_ _ _.___. _
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 1 ER J
1.0     TO BE PROVIDED                           Heterogeneous core replaces homogeneous core arrangement (See Section 3.8) . This Section will also address the supplement to the LMFBR Program Final Environmental Statement.
SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT I
3.1     2.1-1 thra 2.1-10               Plant   Construction site acreage increased. Plant see Section 4.0 arrangements updated. Five impoundi.79 pnds were identified and located on Figure 2.1-3.
mm, 1.0 TO BE PROVIDED Heterogeneous core replaces homogeneous core arrangement (See Section 3.8). This Section will also address the supplement to the LMFBR Program Final Environmental Statement.
2.3     TO BE PROVIDED                             Evaluation of demographic changes in process. Changes will be provided in a future amendment.
3.1 2.1-1 thra 2.1-10 Plant Construction site acreage increased. Plant see Section 4.0 arrangements updated. Five impoundi.79 pnds were identified and located on Figure 2.1-3.
3.3                                                     No change.
2.3 TO BE PROVIDED Evaluation of demographic changes in process. Changes will be provided in a future amendment.
3.4     2.4-15 thru                     Geology   Changed to provide data for 24 additional             Environmentally inconsequential.
3.3 No change.
2.4.22                                     boreholes, taken from September 1976 to June 1977.
3.4 2.4-15 thru Geology Changed to provide data for 24 additional Environmentally inconsequential.
3.5 2.5.1 thru 2.5-10               River     Updated Ilver levels, flows, tempe r atures,           Environmentally inconsequential.
2.4.22 boreholes, taken from September 1976 to June 1977.
3.5.1 etc.
3.5 3.5.1 2.5.1 thru 2.5-10 River Updated Ilver levels, flows, tempe r atures, Environmentally inconsequential.
3.5.2 3.5.2.1                                           No change.
etc.
2.5.2.2                                           No change.
3.5.2 3.5.2.1 No change.
3.5.2.3                                           Fo change.
2.5.2.2 No change.
3.5.2.4 2.5-18                           Ground-   Established piesometric gradient.                     Environmentally inconsequential, water 2.5.2.5                                           No change.                                                                             l 1
3.5.2.3 Fo change.
2.5.2.6                                             No change.
3.5.2.4 2.5-18 Ground-Established piesometric gradient.
2.5.2.7                                             No change.
Environmentally inconsequential, water 2.5.2.5 No change.
2.6     2.6-1 thru                       Meteor-   Updated to include data accumulated                   Environmentally inconsequential, j J
l 1
2.6-99                           ology     using permanent meteorological tower.
2.5.2.6 No change.
2.5.2.7 No change.
2.6 2.6-1 thru Meteor-Updated to include data accumulated Environmentally inconsequential, j
J 2.6-99 ology using permanent meteorological tower.
j l
j l
l
l


CRBRP ENVIRONMENTAL REPORT REVIEW                     PAGE 2
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 2 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONNENTAL EFFECT l
,      ER SECTION       REVISED           ITEM                           DESCRIPTION OF CHANGE                         ENVIRONNENTAL EFFECT             l I
I 2.7 2.7.1 1
2.7                                                                                                                                               ,
i 2.7.1.1 2.7-la Forest Incorporates ORNL forest management No change in estimated environmental Nanage-activities from 1976 through 1980.
2.7.1 1
effects for CRBRP. Nitigation measures for Southern Pine Beetle and Pitch Canker I
i 2.7.1.1 2.7-la                 Forest       Incorporates ORNL forest management                   No change in estimated environmental Nanage-       activities from 1976 through 1980.                   effects for CRBRP. Nitigation measures for Southern Pine Beetle and Pitch Canker I                                                                                                       infestations.
infestations.
I 2.7.1.2 No change.
I 2.7.1.3 2.7-7 thru Flora Update vegetation inventory reporting.
Environmentally inconsequential.
2.7-9 2.7-24, -37 Flora Correct pine designation.
Environmentally inconsequential.
2.7-381, -38m Flora Revise category designation f rom Environmentally inconsequential.
" threatened" to " rare" to reflect current terminology.
2.7.1.4 2.7-380 thru Fauna Update wildlife occurrence data.
Environmentally inconsequential.
2.7-38t l
2.7-38ee Insects Update reporting concerning insect Environmentally inconsequential.
pests.
2.7-38ff Fauna Revised to include possibility of Occurrence on CRBRP site not confirmed.
l eastern cougar occurrence on Oak Also, cougar home range is sufficiently Ridge Reservation.
extensive to absorb effect or CRBRP installation. Environmentally inconsequential.
2.7-3899
' Avifauna Adds mention of osprey nast occurrence Osprey nesting at CRBRP site has not been at Watts Bar Lake.
observed. Environmentally i
inconsequential.
2.7.1.5 No change..
)
2.7.1.6 2.7-38tt Avifauna Update classification of American Occurrence of nesting at site has not osprey.'
g been observed.
i c
Surveys Report on 1980 reconnaissance Environmentally inconsequential.
2.7.1.7 2.7-3 8ww j
j surveys.
f I
ii 2.7.2 1
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N I
2.7.2.1 T
l No change.
- s I
n 2.7.2.2 No change.
=
I
I
!  2.7.1.2                                        No change.
+
I 2.7.1.3  2.7-7 thru            Flora        Update vegetation inventory reporting.                Environmentally inconsequential.
5 T.
,            2.7-9                                                                                                                                          .
2.7-24, -37            Flora        Correct pine designation.                            Environmentally inconsequential.
2.7-381, -38m          Flora        Revise category designation f rom                    Environmentally inconsequential.
                                                  " threatened" to " rare" to reflect current terminology.
2.7.1.4  2.7-380 thru          Fauna        Update wildlife occurrence data.                      Environmentally inconsequential.
2.7-38t l            2.7-38ee                Insects      Update reporting concerning insect                    Environmentally inconsequential.
pests.
2.7-38ff                Fauna        Revised to include possibility of                    Occurrence on CRBRP site not confirmed.        l eastern cougar occurrence on Oak                      Also, cougar home range is sufficiently        ,
Ridge Reservation.                                    extensive to absorb effect or CRBRP installation. Environmentally inconsequential.
2.7-3899              ' Avifauna Adds mention of osprey nast occurrence                    Osprey nesting at CRBRP site has not been i
at Watts Bar Lake.                                    observed. Environmentally inconsequential.
2.7.1.5                  '                    No change..
                                        )
2.7.1.6    2.7-38tt              Avifauna Update classification of American                        Occurrence of nesting at site has not
                            ,!                    osprey.'            g                                been observed.
i                                                .-
,                                                                      c 2.7.1.7    2.7-3 8ww      .      Surveys      Report on 1980 reconnaissance                          Environmentally inconsequential.
j -            $    surveys.                          .
j                                                                              ,
                                                                                        ''                  '                                          ii I                                            1 2.7.2 f
{                    '                    '
N                                                                                                      ;
I    2.7.2.1  T                          l      '
No change.                            -s I  .,        n 2.7.2.2                                        No change.
                                                                  =
I          __+                                                                  5 T.


h                             {
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CRBRP ENVIRONMENTAL REPORT REVIEW                 PAGE 3
{
.        y
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 3 y
                ,                              ,      s.
s.
v_, g SECTION        REVISED          ITEN     ,
SECTION REVISED v_,
DESCRIPTION GP CHANGE                     ENVIRONNENTAL EFFECT       ,
g ITEN DESCRIPTION GP CHANGE ENVIRONNENTAL EFFECT k
k   <
2.7.2.3 No change.,
2.7.2.3                                 No change. ,
2.7.2.4' 2.7-87g Fish Report of occurrences of.the blue Occurrence not reported near Site.
2.7.2.4'   2.7-87g             Fish     Report of occurrences of.the blue         Occurrence not reported near Site.
sucker in Hatts Bar Lake. Blue Environmentally inconsequential, sucker is identified as a threatened species.
sucker in Hatts Bar Lake. Blue             Environmentally inconsequential, sucker is identified as a threatened species.
2.7.2.5 2.7-87h Aquatic Report on 1980 reconnaissance surveys.
2.7.2.5     2.7-87h             Aquatic Report on 1980 reconnaissance surveys. Stocking activities have resulted in
Stocking activities have resulted in
                    -871               Surveys                                             reported increases in gametish. No change in estimated environmental
-871 Surveys reported increases in gametish. No change in estimated environmental effects due to CRBRP.
;                                                                                          effects due to CRBRP.                      .
2.8 2.8-1 thru Back-Complete update reflecting latest Data better characterizes the actual 2.8-109 ground ORNL, TVA and similar organization site and the surrounding areas.
2.8         2.8-1 thru         Back-   Complete update reflecting latest         Data better characterizes the actual 2.8-109             ground   ORNL, TVA and similar organization         site and the surrounding areas.
Radia-studies and scientific papers.
Radia-   studies and scientific papers.             Environmentally inconsequential.
Environmentally inconsequential.
tion s
tion s
)
)
I i                                                                                                                                   - ,
I i
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* 6
* 6
                                                                                                                                    =
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CRBRP ENVIRONMENTAL REPORT REVIEW                         PAGE 4 ER KECTION     REVISED     ITEN                 DESCRIPTION OF CHANGE                             ENVIROWNENTAL EFFSCT 3.0 3.1     3.1-1           Esternal A five foot high animal fence was added         Preclude small animals from plant site and Appear-   at a distance of 33 feet from the             and restrict them to more natural ance       security fence.                               environs. Environmentally inconsequential.
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 4 ER KECTION REVISED ITEN DESCRIPTION OF CHANGE ENVIROWNENTAL EFFSCT 3.0 3.1 3.1-1 Esternal A five foot high animal fence was added Preclude small animals from plant site and Appear-at a distance of 33 feet from the and restrict them to more natural ance security fence.
i i 3.1.1   3.1-2           Plant     Gatehouse, circulating water pump house       Environmentally inconsequential.
environs. Environmentally inconsequential.
I                           Bldg. &   and fire protection pump house were i                           Facili-   identified. The switch yard relay house                                                           ,
i i
ties       was added.
3.1.1 3.1-2 Plant Gatehouse, circulating water pump house Environmentally inconsequential.
The configuration and location of the         Environmentally inconsegnential.               ,
I Bldg. &
and fire protection pump house were i
Facili-identified. The switch yard relay house ties was added.
The configuration and location of the Environmentally inconsegnential.
emergency cooling tower structure were revi sed.
emergency cooling tower structure were revi sed.
3.1.2   3.1.4           Plant     Five foot high animal fence added.           Environmentally inconsequential.                     l Site
3.1.2 3.1.4 Plant Five foot high animal fence added.
! 3.1.3   3.1-4           Other     The size of paved parking area was           Environmentally incoceequential.                     ,
Environmentally inconsequential.
Facili-   reduced for accommodation of 155 cars                                                         '
l Site 3.1.3 3.1-4 Other The size of paved parking area was Environmentally incoceequential.
ties       instead of 250 before.
Facili-reduced for accommodation of 155 cars ties instead of 250 before.
3.2 3.2.1                               No change.
3.2 3.2.1 No change.
3.2.2   3.2-3           Core       Replaced homogeneous core with hetero-       Net change judged to be insignificant.
3.2.2 3.2-3 Core Replaced homogeneous core with hetero-Net change judged to be insignificant.
geneous arrangementresulting in eliminating one fuel enrichment zone (was 2 now 1), reducing                                               .,
geneous arrangementresulting in eliminating one fuel enrichment zone (was 2 now 1), reducing number of fuel assemblies from 198 to 156, reducing number of radial blanket assen-blies from 150 to 132, adding 82 inner blanket assemblies, and increasing Pu en-richment in fuel assemblies from 18.7-32%
number of fuel assemblies from 198 to 156, reducing number of radial blanket assen-blies from 150 to 132, adding 82 inner blanket assemblies, and increasing Pu en-richment in fuel assemblies from 18.7-32%
to 32-334.
to 32-334.
3.2.3                               No change.
3.2.3 No change.
3.3 3.3.1   3.3-1           overall   Average annual consumptive water use         Environmentally inconsequential.
3.3 3.3.1 3.3-1 overall Average annual consumptive water use Environmentally inconsequential.
Plant     figures were revised to be consistent with those in Tables 3.3-1, 3.3-2 and 3.3-3.
Plant figures were revised to be consistent with those in Tables 3.3-1, 3.3-2 and 3.3-3.
3.3.2   3.3-2           Cooling   Flowrate to cooling tower from condenser     Slight increare la plume si-se will not Tower     increased from 209,200 gym to 212,200 gpa. produce ,signficant environmental impact.    .
3.3.2 3.3-2 Cooling Flowrate to cooling tower from condenser Slight increare la plume si-se will not Tower increased from 209,200 gym to 212,200 gpa.
  ,3.3.3   3.3-2           Process   Added makeup water treatment system           Environmentally inconsequential.
produce,signficant environmental impact.
Water                                                                               .                .
,3.3.3 3.3-2 Process Added makeup water treatment system Environmentally inconsequential.
Treatment
Water Treatment System
        .                  System
^
      ^
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CRBRP ENVIRONMENTAL REPORT REVIEW                                       PAGE 5 ER SECTION     REVISED ITEM               DESCRIPTION OF CHANGE                                       ENVIRONMENTAL EFFECT l 3.3.4     3.3-3     Waste     All process waste water including floor             Results in higher quality of water     g Water     drains, go to Waste Water Disposal Systsa           discharged.
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 5 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT l
Disposal instead of being routed to either cooling System   tower basin or neutralisation and settling facilities.
3.3.4 3.3-3 Waste All process waste water including floor Results in higher quality of water g
3.3.5     3.3-3     Radwaste Updated description.                                 See Section 3.5.
Water drains, go to Waste Water Disposal Systsa discharged.
Systems 3.3.6     3.3-4     Potable   Potable water is supplied by DOE's Bear             Environmentally inconsequential.
Disposal instead of being routed to either cooling System tower basin or neutralisation and settling facilities.
Water     Creek Road Filtration Plant instead of Sources   the Nake-up Water Treatment System.
3.3.5 3.3-3 Radwaste Updated description.
Tcble     3.3-5       Plant   Increase in plant make-up flow rate                 Environmentally inconsequential.
See Section 3.5.
3.3-1                 Flow-   from 5835 gym to 6145 gym.
Systems 3.3.6 3.3-4 Potable Potable water is supplied by DOE's Bear Environmentally inconsequential.
rates During   Increase in cooling tower evaporation               Environmentally inconsequential.
Water Creek Road Filtration Plant instead of Sources the Nake-up Water Treatment System.
Maximum rate from 3475 gpa to 3623 gpe.
Tcble 3.3-5 Plant Increase in plant make-up flow rate Environmentally inconsequential.
Power Increase.in cooling. tower drift rate from 105 gpa to 106 gpe.
3.3-1 Flow-from 5835 gym to 6145 gym.
Environmentally inconsequential.          f 1
rates During Increase in cooling tower evaporation Environmentally inconsequential.
Increase in cooling tower blowdown rate           Environmentally inconsequential.         l from 2210 gpa to 2306 gym.                                                       -
Maximum rate from 3475 gpa to 3623 gpe.
p   ,
Power Increase.in cooling. tower drift rate Environmentally inconsequential.
Decrease in Process Waste Treatment                 Environmentally inconsequential.
f from 105 gpa to 106 gpe.
flow rate from 125 gpa to 110 gpe.                                                              .
1 Increase in cooling tower blowdown rate Environmentally inconsequential.
Waste Water Disposal System Flowrate designed at 100 gpe.
l from 2210 gpa to 2306 gym.
Environmentally inconsequential.            [
p Decrease in Process Waste Treatment Environmentally inconsequential.
Increase in plant discharge rate tros               Environmentally inconsequential.
flow rate from 125 gpa to 110 gpe.
Waste Water Disposal System Flowrate Environmentally inconsequential.
[
designed at 100 gpe.
Increase in plant discharge rate tros Environmentally inconsequential.
2,251 gpe to 2,411 gpe.
2,251 gpe to 2,411 gpe.
Increase in total consumptive use of               Environmentally inconsequential, river water from 3,584 gym to 3,733 gpe.
Increase in total consumptive use of Environmentally inconsequential, river water from 3,584 gym to 3,733 gpe.
O
O e
    ..                                                                                                                          e 1
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i CRBRP ENVIROMNECTAL REPORT REVIEW                       PAGE 6                                   '
i CRBRP ENVIROMNECTAL REPORT REVIEW PAGE 6 1
1 ER I
ER I
SECTION                               REVISED ITEM               DESCRIPTION OF CHANGE                           ENVIRONMENTAL EFFECT l
SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT l
l                                           Table                             3.3-6     Plant     Increase in Plant Make-up Flowrate             Environmentally inconsequential,                       g
l l
                                            ' 3-2       ,,                                Flow-     from 2,361 gpa to 2,527 gpe.
Table 3.3-6 Plant Increase in Plant Make-up Flowrate Environmentally inconsequential, g
rates 1                                                                                         During     Increase in cooling tower evaporation           Environmentally inconsequential.
' 3-2 Flow-from 2,361 gpa to 2,527 gpe.
;                                                                                        Minimum   rate from 1,390 gym to 1,450 gym.
rates 1
Power
During Increase in cooling tower evaporation Environmentally inconsequential.
,                                                                                                    Increase in cooling tower blowdown rate         Environmentally inconsequential, j                                                                                                   from 884 gym to 925 gym.
Minimum rate from 1,390 gym to 1,450 gym.
l                                                                                                   Decrease in process water treatment flow-       Environmentally inconsequential.
Power Increase in cooling tower blowdown rate Environmentally inconsequential, j
i                                                                                                   rate from 125 gpa to 110 gym.
from 884 gym to 925 gym.
waste Water Disposal System flowrate           Environmentally inconsequential.
l Decrease in process water treatment flow-Environmentally inconsequential.
;                                                                                                    designed at 100 gps.
i rate from 125 gpa to 110 gym.
Increase in plant discharge rate from           EnvironmentC ly inconsequential.
waste Water Disposal System flowrate Environmentally inconsequential.
i 925 gym to 1,030 gpe.
designed at 100 gps.
I                                                                                                   Increase in total consumption use of           Environmentally inconsequential.
Increase in plant discharge rate from EnvironmentC ly inconsequential.
925 gym to 1,030 gpe.
i I
Increase in total consumption use of Environmentally inconsequential.
river water from 1,436 gpa to 1,496 gym.
river water from 1,436 gpa to 1,496 gym.
Trble                           3.3-7     Plant     Increase in plant makeup flowrate from         Environmentally inconsequential.
Trble 3.3-7 Plant Increase in plant makeup flowrate from Environmentally inconsequential.
3.3-3                                     Flow-     625 gym to 715 gym.
3.3-3 Flow-625 gym to 715 gym.
rates During     Increase in cooling tower blowdown             Environmentally inconsequential.
rates During Increase in cooling tower blowdown Environmentally inconsequential.
Tem-       flowrate from 221 gym to 231 gym.
Tem-flowrate from 221 gym to 231 gym.
porary shutdown Increase in cooling tower evaporation           Environmentally inconsequential, rate from 348 gpa to 363 gym.
porary shutdown Increase in cooling tower evaporation Environmentally inconsequential, rate from 348 gpa to 363 gym.
Decrease in process water treatment             Environmentally inconsequential.
Decrease in process water treatment Environmentally inconsequential.
flowrate from 125 gpa to 110 gym.                                                                         ,
flowrate from 125 gpa to 110 gym.
t Waste Water Disposal System flowrate           Environmentally inconsequential.
t Waste Water Disposal System flowrate Environmentally inconsequential.
designed as 100 gym.
designed as 100 gym.
Increase in plant discharge flowrate           Environmentally l'nconsequential.
Increase in plant discharge flowrate Environmentally l'nconsequential.
from 262 gym to 336 gym.
from 262 gym to 336 gym.
Increase in total rnneurotive use             Environmentally inco.wsquential.
Increase in total rnneurotive use Environmentally inco.wsquential.
of river water fs9e 363 gp to 378.
of river water fs9e 363 gp to 378.
Table                         3.3-8     Plant     Seasonal Flowrates in Table have been         Environmentally inconsequential.                       ,,
Table 3.3-8 Plant Seasonal Flowrates in Table have been Environmentally inconsequential.
3.3-4                                   Water     adjusted to reflect present design.
3.3-4 Water adjusted to reflect present design.
Usage Seasonal                                                                                                       .
Usage Seasonal Variation O
Variation O                           nae e
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l 12.?.RP ENVIRONPENTAL REPORT REVIEW PAGE 7 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE IXIIRONNENTAL EFFECT l
                  ,                                                                    12.?.RP ENVIRONPENTAL REPORT REVIEW                     PAGE 7 ER SECTION       REVISED         ITEM                                             DESCRIPTION OF CHANGE                           IXIIRONNENTAL EFFECT               l
3.4.1 3.4-1 Woling Updated Makeup water addition to 6035 gpa.
,    3.4.1     3.4-1             Woling         Updated Makeup water addition to 6035 gpa.                               Environmentally inconsequential.
Environmentally inconsequential.
* hver                                                                                                                                   ,
hver 3.4.2 3.4-3 River Design flowrate for river water pumps Environmentally inconsequential.
i 3.4.2     3.4-3               River         Design flowrate for river water pumps                                     Environmentally inconsequential.
i j
j                                   Water         decreased from 10,000 gpm each to 9,000 gpm Pumps       each.
Water decreased from 10,000 gpm each to 9,000 gpm Pumps each.
3.4.3                                       No change.
3.4.3 No change.
T;ble     3.4-5               Heat         Heat rejected from a cooling tower                                       Environmentally inconsequential.
T;ble 3.4-5 Heat Heat rejected from a cooling tower Environmentally inconsequential.
3.4-1                         Dissipa- increased f rom 2.172 x 109 B1U/HR to tion       2.256 x 109 BTU /HR.
3.4-1 Dissipa-increased f rom 2.172 x 109 B1U/HR to tion 2.256 x 109 BTU /HR.
;                                    Design Parameters                                                                                                                                 <
Design Parameters
                                      & Conditions Trblo     3.4-6               Component Updated Design Parameters.                                                   Environmentally inconsequential.
& Conditions Trblo 3.4-6 Component Updated Design Parameters.
3.4-2                           Descrip-tions T;ble     3.4-8               Cooling     Average monthly cooling tower blow-                                       Environmentally inconsequential.
Environmentally inconsequential.
3.4-4                           Tower       down temperatures increased slightly.
3.4-2 Descrip-tions T;ble 3.4-8 Cooling Average monthly cooling tower blow-Environmentally inconsequential.
Blowdown Temperature 3.5       (ALL CHANGES TO SECTION 3.5 THAT ARE DESCRIBED BELOW WILL BE PROVIDED IN A FUTURE AMENDMENT TO THE ER.)
3.4-4 Tower down temperatures increased slightly.
3 . 5 .1 ~                       No change.
Blowdown Temperature 3.5 (ALL CHANGES TO SECTION 3.5 THAT ARE DESCRIBED BELOW WILL BE PROVIDED IN A FUTURE AMENDMENT TO THE ER.)
3.5.1.1                           No change.
3. 5.1 ~
a                                                                                                                                                                             e' 3.5.1.2   3.5-3                 Filter     A filter deleted from the liquid                                         Environmentally inconsequential.
No change.
3.5.1.1 No change.
a e'
3.5.1.2 3.5-3 Filter A filter deleted from the liquid Environmentally inconsequential.
radwaste system.
radwaste system.
3.5.2                                                                                                                                                                 I 3.5.2.1   3.5-7                   Noble     The 39At and 41Ar produced by direct                                     The additional Argon from thic source is Gases     activation of 38Ar and 40Ar is now                                       negligible and the environmental impact included in the radioactive source terms                                 is considered insignificant.
3.5.2 I
used for design work.                                                                                                     ,
3.5.2.1 3.5-7 Noble The 39At and 41Ar produced by direct The additional Argon from thic source is Gases activation of 38Ar and 40Ar is now negligible and the environmental impact included in the radioactive source terms is considered insignificant.
3.5.2.2   3.5-8                   Treat-   Design has been changed so that 85g from                                 The site boundary beta skin dose is ment       RAPS is no longer bottled but is pr5 cessed                               increased by approximately a factor of 2, and       thru CAPS and released to H6V.                                           buttheyKtential   for accidental exposure Release                                                                           due to         atorage and shippin is System                                                                             removed. fhenetchangeinenvfronmental effects is judged to be insignificant.    .
used for design work.
S                 en*
3.5.2.2 3.5-8 Treat-Design has been changed so that 85g from The site boundary beta skin dose is ment RAPS is no longer bottled but is pr5 cessed increased by approximately a factor of 2, and thru CAPS and released to H6V.
buttheyKtential for accidental exposure Release due to atorage and shippin is System removed. fhenetchangeinenvfronmental effects is judged to be insignificant.
S en*
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CR3RP ENVIRONMENTAL REPORT REVIEW                     PAGE 8 i
CR3RP ENVIRONMENTAL REPORT REVIEW PAGE 8 i
1 T
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!-  SECTION       REVISED     ITEM               DESCRIPTION OF CHANGE                         ENVIRONMENTAL BFFECT             l
SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL BFFECT l
}
}
Previously all leakages of cover gas or     The site boundary beta and gamma doses are recycled cover gas were processed through   increased; a slightly adverse effect. The     ,
Previously all leakages of cover gas or The site boundary beta and gamma doses are recycled cover gas were processed through increased; a slightly adverse effect. The CAPS.
CAPS. Now most of the cells containing   beta dose increased W approximately 1.5, 2                                       components which could leak cover gas vent gamma dose by approximately 3.
Now most of the cells containing beta dose increased W approximately 1.5, 2
I                                       to B&V.
components which could leak cover gas vent gamma dose by approximately 3.
l   3.5.2.3   3.5-9, 10       Tritium The tritium removal unit has been           Environmentally inconsequential.
I to B&V.
4                               Removal   redesigned.
l 3.5.2.3 3.5-9, 10 Tritium The tritium removal unit has been Environmentally inconsequential.
j                               System                                                                                                 .;
4 Removal redesigned.
;    3.5.2.4   3.5-11         Head     The reactor cover gas leakage rate         The site boundary beta and gn===   doses 1                               Seals   was reduced from 0.012 SCC per minute       are decreased; a slightly favorable to 0.0044 SCC per minute.                  environmental effect.
j System 3.5.2.4 3.5-11 Head The reactor cover gas leakage rate The site boundary beta and gn===
doses 1
Seals was reduced from 0.012 SCC per minute are decreased; a slightly favorable
{
{
!                                        The diffusion of Tritium through           The additional radioactivity contributed piping walla into PRTS and auxiliary       by the small maount of Tritium diffusing J
to 0.0044 SCC per minute.
Na cells has been added to design           through piping walls is insignificant i
environmental effect.
t                                      assumptions. Any significant amount         compared to the radioactivity contained of Tritium'has been included in the         in the cover gas which is assumed to leak j
The diffusion of Tritium through The additional radioactivity contributed J
;                                        current radiclogical source terms.         Into cells at the rate of I cc/ min. The
piping walla into PRTS and auxiliary by the small maount of Tritium diffusing i
;                                                                                    impact is judged insignificant.
Na cells has been added to design through piping walls is insignificant t
i
assumptions. Any significant amount compared to the radioactivity contained of Tritium'has been included in the in the cover gas which is assumed to leak j
;    3.5.2.5   3.5-12           Release Ventilation exhaust rates at radiological   Higher exhaust rates could potentially l
current radiclogical source terms.
Points release points have been revised. Examples have more environmental impact due to
Into cells at the rate of I cc/ min. The impact is judged insignificant.
;                                        are the release point in the SGB Inter-     shorter hold-up of radionuclides.
i 3.5.2.5 3.5-12 Release Ventilation exhaust rates at radiological Higher exhaust rates could potentially l
mediate Bay which increased from 50,000     However, the doses resulting from SCFM to 64,000 SCFM and the exhaust point   plant releases remain well below on top of the RCB which increased f rom     guideline limits.
Points release points have been revised. Examples have more environmental impact due to are the release point in the SGB Inter-shorter hold-up of radionuclides.
'                                        415,000 SCFM to 418,000 SCFM.
mediate Bay which increased from 50,000 However, the doses resulting from SCFM to 64,000 SCFM and the exhaust point plant releases remain well below on top of the RCB which increased f rom guideline limits.
This change in temperature range will Ventilation exhaust temperature ranges     have no impact. Density variations which l                                        at radiological release points have         could release more or less radioactive         ,
415,000 SCFM to 418,000 SCFM.
increased. An example is a release         material are accounted f or in the pre-point in the RSB that did have a range     coding changes in exhaust rates.               j of 65or to 120oF and now ranges from                                                       i 550F to 1400F.
This change in temperature range will l
The CAPS Reactor Service Building R&V       No environmental impact for normal Exhaust has been deleted. CAPS now         release. Improved protection against exhausts through the RSB exhaust with       release of above normal radioactivity             '
Ventilation exhaust temperature ranges have no impact. Density variations which at radiological release points have could release more or less radioactive increased. An example is a release material are accounted f or in the pre-point in the RSB that did have a range coding changes in exhaust rates.
.                                        safety-related exhaust radiation monitors. from the plant due to off-normal con-ditions - a slightly favorable ef fect.
j of 65or to 120oF and now ranges from i
RAPS process components have been moved     No environmental impact for normal f rom the RSB to the RCB.                   operation. Improved protection 4                                                                                    against release of radioactivity from d
550F to 1400F.
the plant following RAPS accidents -       . ,
The CAPS Reactor Service Building R&V No environmental impact for normal Exhaust has been deleted. CAPS now release. Improved protection against exhausts through the RSB exhaust with release of above normal radioactivity safety-related exhaust radiation monitors.
a slightly favorable ef fect.
from the plant due to off-normal con-ditions - a slightly favorable ef fect.
E             e, 3
RAPS process components have been moved No environmental impact for normal f rom the RSB to the RCB.
                                                                                                                                        .L
operation. Improved protection against release of radioactivity from 4
the plant following RAPS accidents -
d a slightly favorable ef fect.
E e,
3
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j                                                                                                                   CRBRP ENVIRONMENTAL REPORT REVIEW                     PAGE 9 ta
j CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 9 ta j
* j                                                      SECTION         REVIS ED ITEN                               DESCRIPTION OF CHANGE                         ENVIRONNENTAL EFFECT 3.5.2.6     3.5-13, -14 RAPS     Revises gaseous release data based on                         No environmental impact f or normal J
SECTION REVIS ED ITEN DESCRIPTION OF CHANGE ENVIRONNENTAL EFFECT 3.5.2.6 3.5-13, -14 RAPS Revises gaseous release data based on No environmental impact f or normal J
relocated RAPS, updated burnup and release                   operation. Improved protection i                                                                                           point datra, and most recent meterology,                     against release of radioactivity from i                                                                                                                                                         the plant following RAPS accidents -
relocated RAPS, updated burnup and release operation. Improved protection i
l                                                                                                                                                         a slightly favorable ef fecto i
point datra, and most recent meterology, against release of radioactivity from i
!                                                        3.5.2.7     3.5-14, -15 Balance   Turbine generator building ventilation                       Environmentally inconsequential.
the plant following RAPS accidents -
l                                                                                 of Plant exhaust location change f rom elevation 905'6" to 878'0", release rate decrease from 17,500 cfm to 8,000 cfe, exhaust i                                                                                           flow velocity increase from 585 feet / min.
l a slightly favorable ef fecto i
:                                                                                          with a temperature range of 85 to 120or l                                                                                           to 900 feet / min with a temperature range 1
3.5.2.7 3.5-14, -15 Balance Turbine generator building ventilation Environmentally inconsequential.
l of Plant exhaust location change f rom elevation 905'6" to 878'0", release rate decrease from 17,500 cfm to 8,000 cfe, exhaust i
flow velocity increase from 585 feet / min.
with a temperature range of 85 to 120or l
to 900 feet / min with a temperature range 1
from 550F to 1200?.
from 550F to 1200?.
Plant Service Building ventilation exhaust                                                               4 location changed f rom elevation 830'0" to 831'2".
Plant Service Building ventilation exhaust 4
location changed f rom elevation 830'0" to 831'2".
Number of relaase points decreased from 2 to 1.
Number of relaase points decreased from 2 to 1.
3.5.3     3.5-15       Solid     Solid radwaste m ulpment is now                               Environaentally inconsequential.
3.5.3 3.5-15 Solid Solid radwaste m ulpment is now Environaentally inconsequential.
(3.5.3.1             Radwaste is now identified as including 3.5.3.2)             System   a cement filling station, a decanting station, Bquip-   a concentrated waste collection tank, a drumming ment     station, a filter handling machine and a compactor.                   (See also Tables 3.5-10 and 3.5-11).
(3.5.3.1 Radwaste is now identified as including 3.5.3.2)
3.5.3.3 3.5-15       Noncom- There will be a total of 82 (instead                         Environmentally inconsequential.
System a cement filling station, a decanting station, Bquip-a concentrated waste collection tank, a drumming ment station, a filter handling machine and a compactor.
patible of 202) 55 gallon drums per year used to store Solids   the low activity, non-compactible solids of Rad- af ter treatment at tho salid radwaste waste     system.
(See also Tables 3.5-10 and 3.5-11).
System 3.5.3.4 3.5-16       Radio-   There are nov 2 drums of waste metallic                       Environmentally incensequential.
3.5.3.3 3.5-15 Noncom-There will be a total of 82 (instead Environmentally inconsequential.
active   sodium per year with an activity level Sodium   of 20 C1/ drum instead of 6 drums / year with an activity level of 1.5 C1/ drum stored and/or processed on site.
patible of 202) 55 gallon drums per year used to store Solids the low activity, non-compactible solids of Rad-af ter treatment at tho salid radwaste waste system.
3.5.3.5   3.5-17       Sodium   The disposal of sodium bearing waste,                         Environmentally inconsequential.
System 3.5.3.4 3.5-16 Radio-There are nov 2 drums of waste metallic Environmentally incensequential.
Bearing which was not previously identified, Solids   has been selected. Ma currently licensed off-site disposal facility will accept sodium bearing wastes, therefore, for off-site disposal of these wastes, the sodium will be removed. Where sodium removal is not practical, the waste will be stored on-site.
active sodium per year with an activity level Sodium of 20 C1/ drum instead of 6 drums / year with an activity level of 1.5 C1/ drum stored and/or processed on site.
                                              ' ~
3.5.3.5 3.5-17 Sodium The disposal of sodium bearing waste, Environmentally inconsequential.
Activ-   Individual primary cold trap contained                       Environmentally inconsequential.
Bearing which was not previously identified, Solids has been selected. Ma currently licensed off-site disposal facility will accept sodium bearing wastes, therefore, for off-site disposal of these wastes, the sodium will be removed. Where sodium removal is not practical, the waste will be stored on-site.
ity     actlyity of Tritium increased from 8.7 x 10J Ci to 1.85 x 5 Ci and activity of fission and corrosion products increase from 1 x 103 C1 to 1.41 x 105 C1. The
' ~
Activ-Individual primary cold trap contained Environmentally inconsequential.
ity actlyity of Tritium increased from 8.7 x 10J Ci to 1.85 x 5 Ci and activity of fission and corrosion products increase from 1 x 103 C1 to 1.41 x 105 C1.
The


CRBRP ENVIRONMENTAL REPORT REVIEW                     PAGE 10 ER                                                                                   ENVIRONMENTAL EFFBCT    ,!
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 10 ER SECTION REVIS ED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFBCT contained activity will not be removed or released f rom the cold traps. The g
SECTION     REVIS ED ITEM                 DESCRIPTION OF CHANGE contained activity will not be removed or released f rom the cold traps. The                                                   g EVST cold trap contained activity increased from 6.7 x 10J C1. The Tritium activity                                             ,
EVST cold trap contained activity increased from 6.7 x 10J C1.
increased from 150 C1 to 180 C1.
The Tritium activity increased from 150 C1 to 180 C1.
3.5-18,     IALL       Some of the assumptions that Table 3.5-1       Environmentally inconsequential.
Table 3.5-18, IALL Some of the assumptions that Table 3.5-1 Environmentally inconsequential.
Table 3.5-1  -19          System    had been based upon have changed:
(
(
3.5-1
-19 System had been based upon have changed:
I 1
I 1
: 1) Intermediate activity concentration i
: 1) Intermediate activity concentration for the first rinse computed assuming i
for the first rinse computed assuming 104 (instead of 404) of plated out activity and 100% of sodium activity adhering to the process components is                                               i dissolved in 100,000 (instead to 37,000)     f gallons of water per year.                                                           l
104 (instead of 404) of plated out activity and 100% of sodium activity adhering to the process components is i
: 2) Processed components involve an average annual volume of 3,200 (instead of 14,700)                                           {
dissolved in 100,000 (instead to 37,000) f l
gallons of water per year.
: 2) Processed components involve an average annual volume of 3,200 (instead of 14,700)
{
gallons.
gallons.
3.5-20       IALL     Some of the assumptions that Table 3.5-2       Environmentally inconsequential.
Table 3.5-20 IALL Some of the assumptions that Table 3.5-2 Environmentally inconsequential.
Table 3.5-2   thru -22     System   had been based upon have changed:                                                         #
3.5-2 thru -22 System had been based upon have changed:
: 1) Iodine Dr=104 included. Monitoring tank volume decreased f rom 2,500 gallons to 2,400 gallons.
: 1) Iodine Dr=104 included. Monitoring tank volume decreased f rom 2,500 gallons to 2,400 gallons.
: 2) Iodine DF=104 included.                                                            .
: 2) Iodine DF=104 included.
Table   3.5-23,       IALL     Some of the assumptions that Table 3.5-3         Environmentally inconsequential.
Table 3.5-23, IALL Some of the assumptions that Table 3.5-3 Environmentally inconsequential.
3.5-3   -24           Systen     had been based upon have changed:                                                         ;
3.5-3
-24 Systen had been based upon have changed:
lant Activity Liquid Maatt Anan=ntions:
lant Activity Liquid Maatt Anan=ntions:
: 1)   Iodine DF=104 and Tritium DP=1 included.
1)
Iodine DF=104 and Tritium DP=1 included.
Intermediate Activity Liquid Magig Asanentions:
Intermediate Activity Liquid Magig Asanentions:
: 1. Liquid waste discharged to the common plant discharger (instead of the coolant water blowdown str eam) . Iodine DF-104 and Tritium DP=1 included.                                                                   .
1.
Expected values in teble have been changed to             Environmentally inconsequential.
Liquid waste discharged to the common plant discharger (instead of the coolant water blowdown str eam). Iodine DF-104 and Tritium DP=1 included.
Table  3.5-31 3.5-10               Weight,   reflect current design.
Table 3.5-31 Expected values in teble have been changed to Environmentally inconsequential.
Volume and       Total estimated volume of solid radwaste
3.5-10
          -                Activity generated decreased f rom 3,094 f 3t /yr to                               *-          _
: Weight, reflect current design.
of Solid 2,865 f t3/yr.
Volume and Total estimated volume of solid radwaste 3
Activity generated decreased f rom 3,094 f t /yr to of Solid 2,865 f t3/yr.
Radwaste
Radwaste


CRBRP ENVEtONMENTAL REPO1T REVIEW                 PAGE 11 ER
CRBRP ENVEtONMENTAL REPO1T REVIEW PAGE 11 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT Total estimated weight of solid radwaste i
,  SECTION   REVISED   ITEM                 DESCRIPTION OF CHANGE                       ENVIRONMENTAL EFFECT
generated decreased from 2.6 x 105 lbs/yr.
,                                  Total estimated weight of solid radwaste i                                   generated decreased from 2.6 x 105 lbs/yr.
j to 1.9 m 103 lbs/yr.
j                                   to 1.9 m 103 lbs/yr.
l Total estimated activity of solid radwaste generated decreased from 6.6 x 104 C1/yr. to 3.2 x 103 C1/yr.
l                                   Total estimated activity of solid radwaste
i Tcble 3.5-32 Expected Expected containers per year of solidified Environmentally inconsequential, i
;                                  generated decreased from 6.6 x 104 C1/yr. to
3.5-11 Solid liquid radwaste decreased from 170 to 135.
;                                  3.2 x 103 C1/yr.
Radwaste Ship-Expected containers per year of filters and ments resins decreased from 120 to 30.
i Tcble   3.5-32       Expected Expected containers per year of solidified     Environmentally inconsequential, i 3.5-11               Solid     liquid radwaste decreased from 170 to 135.
per year l
Radwaste Ship-     Expected containers per year of filters and ments     resins decreased from 120 to 30.
Figure 3.5-33 Basic Inlets of collecting tanks now include Environmentally inconsequential.
per year l Figure 3.5-33       Basic     Inlets of collecting tanks now include       Environmentally inconsequential.
3.5-1 Plow filters.
Plow 3.5-1                           filters.
Design
Design
} Figure 3.5-37         Basic     Completely revised to reflect vendor         Environmentally inconsequential.
}
1 3.5-5                 Flow     design.
Figure 3.5-37 Basic Completely revised to reflect vendor Environmentally inconsequential.
4 Design                                                                                        :.
1 3.5-5 Flow design.
j 3.6                             No change.
Design 4
3.6.1                           No change.
j 3.6 No change.
!  3.6.2   3.6-3         Sodium   Capability of injecting sodium hypo-         Environmentally inconsequential.
3.6.1 No change.
l                       Bypo-     chlorite into cooling tower basin,
3.6.2 3.6-3 Sodium Capability of injecting sodium hypo-Environmentally inconsequential.
;                        chlorite on a continuous or intermittent basis.
l Bypo-chlorite into cooling tower basin, chlorite on a continuous or intermittent basis.
l Injection i
l Injection i
j   3.6.3 3.6-4         Demin-     Delete limits on demineralizer chemicals. Environmentally inconsequential.
j 3.6.3 3.6-4 Demin-Delete limits on demineralizer chemicals.
i                         eralizer 4
Environmentally inconsequential.
3.6.4 3.6-5         Sewage     Chlorine limits set to meet NPDES permit   Environmentally inconsequential.       '
i eralizer 3.6.4 3.6-5 Sewage Chlorine limits set to meet NPDES permit Environmentally inconsequential.
Disposal limits.
4 Disposal limits.
,  Figure 3.6-7                   Incorporate changes as described in text. Environmentally inconsequential.
Figure 3.6-7 Incorporate changes as described in text.
;  3.6-1 3.7                             No change.
Environmentally inconsequential.
3.7.1   3.7-1         Sanitary Addition of pretreatment and extended         Environmentally inconsequential.
3.6-1 3.7 No change.
Sewage     aeration of activated sludge. Compares System     ef fluent concentrations to NPDES permit limits (Table 3.7-1) .
3.7.1 3.7-1 Sanitary Addition of pretreatment and extended Environmentally inconsequential.
3.7.2                           No change.
Sewage aeration of activated sludge. Compares System ef fluent concentrations to NPDES permit limits (Table 3.7-1).
r
3.7.2 No change.
        .                                                                                                              e O
r e
                      =_                                                                                          __..m
O
=
..m


CRBRP ENVIRONMENTAL REPORT REVIEW                                             PAGE 12 ER SECTION   REVISED   ITEM                       DESCRIPTION OF CHANGE                                       ENVIRONNE1TAL EFFBCT 3.8 3.8.1.1 3.8-1, -2   Core       Replaced homogeneous core arrangement with                         Decreases the haavy metal commitment Design     heterogeneous core arrangement resulting                           (U or U + Pu) in the axial blankets in reducing the number of fuel assemblies                         and core from 5.4 NT to 4.2 NT and from 198 to 156, increasing the Pu enrich-                         from 6.5 NT to 5.2 NT, respectively.
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 12 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONNE1TAL EFFBCT 3.8 3.8.1.1 3.8-1, -2 Core Replaced homogeneous core arrangement with Decreases the haavy metal commitment Design heterogeneous core arrangement resulting (U or U + Pu) in the axial blankets in reducing the number of fuel assemblies and core from 5.4 NT to 4.2 NT and from 198 to 156, increasing the Pu enrich-from 6.5 NT to 5.2 NT, respectively.
ment from 18.7 to 324 fissile to 33.2%                             Environmentally inconsequential.
ment from 18.7 to 324 fissile to 33.2%
Environmentally inconsequential.
total.
total.
Deleted option to noe natural uranium                             Environmentally inconsequential.
Deleted option to noe natural uranium Environmentally inconsequential.
as alternate material to depleted uranium as feed material for fuel pellets.
as alternate material to depleted uranium as feed material for fuel pellets.
Revised refueling scheme from replacing                           Average yearly shipments of fresh approximately one-third annually to                               fuel would therefore increase from batch replacement of all the fuel and                             about 33 to 42. Environmentally inner blanket acsemblies at two year                             inconsequential.
Revised refueling scheme from replacing Average yearly shipments of fresh approximately one-third annually to fuel would therefore increase from batch replacement of all the fuel and about 33 to 42.
intervals with mid-interval replacement of 6 inner blankets with fresh fuel g                                     assemblies.
Environmentally inner blanket acsemblies at two year inconsequential.
:    3.8.1.2 3.8-2       Core       Replaced homogeneous core arrangement                             Increases the have metal (U) commitment
intervals with mid-interval replacement of 6 inner blankets with fresh fuel g
-                          Design     with heterogeneola core arrangement                               from 16.4 NT to 21.6 NT.               Environmentally resulting in increasing the total number                         inconsequential.
assemblies.
of blanket assemblies from 150 (radial)
3.8.1.2 3.8-2 Core Replaced homogeneous core arrangement Increases the have metal (U) commitment Design with heterogeneola core arrangement from 16.4 NT to 21.6 NT.
!                                    to 214 (82 inner and 132 radial) .                                                                                           ,
Environmentally resulting in increasing the total number inconsequential.
I                                     Revised dimensional parameters of blanket                         Environmentally inconsequential.
of blanket assemblies from 150 (radial) to 214 (82 inner and 132 radial).
I Revised dimensional parameters of blanket Environmentally inconsequential.
rods (outside diameter desceased from 0.520 in, to 0.506 in.) and assenoly weight increased (from 525 lbs. to 536 lbs.).
rods (outside diameter desceased from 0.520 in, to 0.506 in.) and assenoly weight increased (from 525 lbs. to 536 lbs.).
Revised refueling scheme from annual                               hverage yearly shipments fresh blanket i                                      refueling to batch refueling at two-                             assemblies will therefore increase from                   .
Revised refueling scheme from annual hverage yearly shipments fresh blanket refueling to batch refueling at two-assemblies will therefore increase from i
year intervals.                                                   13 to 35. Environmentally i                                                                                                        inconsequential.
year intervals.
1     Figure
13 to 35.
,    3.8.1   3.8-10       Reactor     Revised to ahow heterogeneous core layout.                       Environmentally inconsequential.                           i Figure 3.8.2   3.8-11       Fuel       Dimensions removed.                                               Environmentally inconsequential.
Environmentally inconsequential.
l     3.8.2.1 3.8-3, -4   Core       Replaced homogeneous core arrangement                             Shipping schedule for speat fuel increases Design     with heterogeneous core arrangement                               from 8 to 12 shipments per year to one and revised refueling scheme from annual                         shipment per week. Change judged to refueling to betch refueling at two year                         to be slightly adverse.
i 1
Intervals resulting in increasing the average
Figure 3.8.1 3.8-10 Reactor Revised to ahow heterogeneous core layout.
  ..                                  number of fuel assemblies discharged yearly from 66 to 81, decreasing the fuel assembly burnup from                                                       .
Environmentally inconsequential.
l
i Figure 3.8.2 3.8-11 Fuel Dimensions removed.
* i i
Environmentally inconsequential.
l 3.8.2.1 3.8-3, -4 Core Replaced homogeneous core arrangement Shipping schedule for speat fuel increases Design with heterogeneous core arrangement from 8 to 12 shipments per year to one and revised refueling scheme from annual shipment per week. Change judged to refueling to betch refueling at two year to be slightly adverse.
Intervals resulting in increasing the average number of fuel assemblies discharged yearly from 66 to 81, decreasing the fuel assembly burnup from l
i i


CR2RP ENVIRONMENTAL REPORT REVIEW                     PAGE 13 ER                                                                                                                                                                                         l SECTION             REVISED                                                               ITEM             DESCRIPTION OF CHANGE                         ENVIRONIERTAL BFFBCT 200,000 MWD / Ton average to 80,000 NWD/ Ton average, and the peak burnup to 110,000                                                     i   "
CR2RP ENVIRONMENTAL REPORT REVIEW PAGE 13 ER l
MWD / Ton, decreasing the average burnup in the axial blankets f rom 4,000 MWD / Ton to 2,200 MWD / Ton, and reducing the amount of bred fissile Pu from I kg/assy. to 0.3 to 0.4 kg/assy.
SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONIERTAL BFFBCT 200,000 MWD / Ton average to 80,000 NWD/ Ton average, and the peak burnup to 110,000 i
MWD / Ton, decreasing the average burnup in the axial blankets f rom 4,000 MWD / Ton to 2,200 MWD / Ton, and reducing the amount of bred fissile Pu from I kg/assy. to 0.3 to 0.4 kg/assy.
Revised weight and dimensions of spent fuel Environmentally inconsequential.
Revised weight and dimensions of spent fuel Environmentally inconsequential.
shipping cask.
shipping cask.
3.8.2.2           3.8-4, -5                                                               Core   Replaced homogeneous core arrangement with     Increases the number of spent blanket Design heterogeneous core arrangement and revised     assembly shipments f rom 3 to 6-7 per year.      ,.
3.8.2.2 3.8-4, -5 Core Replaced homogeneous core arrangement with Increases the number of spent blanket Design heterogeneous core arrangement and revised assembly shipments f rom 3 to 6-7 per year.
refueling scheme from annual to batch         Change judged to be slightly adverse, resulting in increasing the number of blanket assemblies discharged f rom the plant per year f rom 25 to 70, increasing the burnup per assesbly from 5,700 MWD / Ton
refueling scheme from annual to batch Change judged to be slightly adverse, resulting in increasing the number of blanket assemblies discharged f rom the plant per year f rom 25 to 70, increasing the burnup per assesbly from 5,700 MWD / Ton
                                                                                                        . o 8,000 MWD / Ton, increasing the average and M ak heat generation from 1 kw average (radlal) to 2.6 kw (inner) and 1.6 kw (radial) and f rom 7 kw peak (radial) to 19.7 kw (inner) and 12 kw (radial).
. o 8,000 MWD / Ton, increasing the average and M ak heat generation from 1 kw average (radlal) to 2.6 kw (inner) and 1.6 kw (radial) and f rom 7 kw peak (radial) to 19.7 kw (inner) and 12 kw (radial).
3.8.3 3.8.3.1           3.8-5 thru                                                               Core   Replacement of homogeneous core arrangement Change judged to be slightly favce-ble.
3.8.3 3.8.3.1 3.8-5 thru Core Replacement of homogeneous core arrangement Change judged to be slightly favce-ble.
3.8-7                                                                     Design with heterogeneous core arrangement results in reducing the number of primary control assemblies from 15 to 9 and       . increasing the number of secondary con ~.tol assemblies from 4 to 6.                                                                              .
3.8-7 Design with heterogeneous core arrangement results in reducing the number of primary control assemblies from 15 to 9 and
If lifetime considerations permit, control   Change judged to be slightly favorable, rods could remain in the reactor for two cycles, also the driveline lifetime has been increased from 10 to 15 years.
. increasing the number of secondary con ~.tol assemblies from 4 to 6.
Revised configuration of radial shield       Environmentally inconsequential.
If lifetime considerations permit, control Change judged to be slightly favorable, rods could remain in the reactor for two cycles, also the driveline lifetime has been increased from 10 to 15 years.
assembly from stacked hexagonal plates to closely packed rods in a her duct and                                                   .
Revised configuration of radial shield Environmentally inconsequential.
decreased assembly weight from 750 to 360 lbs.
assembly from stacked hexagonal plates to closely packed rods in a her duct and decreased assembly weight from 750 to 360 lbs.
Because of the change to the heterogeneous   This greatly reduces the number of ship-core arrangement the lifetime of the first     ments of irradiated shield assemblies, row of shield assemblies has increased         Change judged to be favorable.             _
Because of the change to the heterogeneous This greatly reduces the number of ship-core arrangement the lifetime of the first ments of irradiated shield assemblies, row of shield assemblies has increased Change judged to be favorable.
from 3 to 10-to-15 years, part of the second row lifetime has increased from 6-to-12 to 10-to-25 years, and the third                             .                    .
from 3 to 10-to-15 years, part of the second row lifetime has increased from 6-to-12 to 10-to-25 years, and the third mf
mf


CRIRP ENVIRC~ MENTAL REPORT REVIEW                   PAGE 14 ER SECTION             REVISED                   ITEM                                         DESCRIPTION OF CHANGE                         ENVIRONMENTAL EFFBCT           ,l and fourth rows are not espected to require                                           ,
CRIRP ENVIRC~ MENTAL REPORT REVIEW PAGE 14 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFBCT
replacement during plant lifetime. The                                                   ,
,l and fourth rows are not espected to require replacement during plant lifetime. The number of first row assemblies has been reduced from 72 to 54.
number of first row assemblies has been reduced from 72 to 54.
85 r is no The site boundary beta skin dose is 3.8.3.2 3.8-8 RAPS Design has been changed so that K
3.8.3.2         3.8-8                         RAPS                                 Design has been changed so that 85K r is no The site boundary beta skin dose is longee bottled but is processed through     increased by approximately a factor of 2, CAPS and released to H&V.                   but the M tential for accidental exposure due to 85K r storage and shipping is removed the net change in environmental effects is judged to be insignificant.
longee bottled but is processed through increased by approximately a factor of 2, CAPS and released to H&V.
3.8-8, -9                     Primary                               The tritium levels were updated f rom 1.8   Material will not be released so the Cold                                 x 104 Ci to 1.85 x 105 Ci and the fission   changes are judges to be environ-Trap                                 products and corrosion products increased   mentally inconsequential.                      .
but the M tential for accidental exposure due to 85 r storage and shipping is K
from 1 x 103 C1 to 1.41 x 105 C1.                                                           ,
removed the net change in environmental effects is judged to be insignificant.
Cold traps are to be stored on site since                                                   ,
3.8-8, -9 Primary The tritium levels were updated f rom 1.8 Material will not be released so the Cold x 104 Ci to 1.85 x 105 Ci and the fission changes are judges to be environ-Trap products and corrosion products increased mentally inconsequential.
no currently licensed disposal site will                                                   j accept sodium-bearing wastes.                                                              .
from 1 x 103 C1 to 1.41 x 105 C1.
i 3.9                                                                                                                                                                             ;
Cold traps are to be stored on site since no currently licensed disposal site will j
I 3.9-1                                                                               No change.                                                                                 ;
accept sodium-bearing wastes.
3.9-2                                                                               No change.
i 3.9 I
3.9-3                                                                               No change.
3.9-1 No change.
3.9-4           3.9-4                         Flora                                 Update to account for ORNL forest           No change in environmental effects due management activities since 1976.           to CRBRP.
3.9-2 No change.
(Table 3.9-1)                                                                           _
3.9-3 No change.
3.9-5                                                                               No change, d
3.9-4 3.9-4 Flora Update to account for ORNL forest No change in environmental effects due management activities since 1976.
3.9-6                                                                               No change.
to CRBRP.
3.9-7                                                                               No change.
(Table 3.9-1) 3.9-5 No change, d
3.9-8                                                                               No change.
3.9-6 No change.
3.9-9                                                                               No change.
3.9-7 No change.
3.9-8 No change.
3.9-9 No change.
w e
w e
6 w
6 w
Line 746: Line 1,034:
w
w


CRGRP ENVIRONNENTAL REPORT REVIEW                       PAGE 15 ER SECTION   REVISED   ITEM               DESCRIPTION OF CHANGE                           ENVIRONIENTAL BFFBCT 4.1     4.1-1, -2     Site       Deletion of borrow area, increase of           Environmentally inconsequential.
CRGRP ENVIRONNENTAL REPORT REVIEW PAGE 15 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONIENTAL BFFBCT 4.1 4.1-1, -2 Site Deletion of borrow area, increase of Environmentally inconsequential.
Prep.     site temporary acreage to 260 acres and       from 195 acres required for plant Plant     construction, 37 acres inside security Cons-     barrier, quarry increase from 25 acres to truc-     45 acres, provide crusher fecility at tion       quarry (Table 4.1-1, Figure $.1-1) .
Prep.
4.1.1 4.1.1.1 4.1-2         Clearing Choice to use open burning during site           Change judged to have a slight negative clearing.                                       environmental effect.
site temporary acreage to 260 acres and from 195 acres required for plant Plant construction, 37 acres inside security Cons-barrier, quarry increase from 25 acres to truc-45 acres, provide crusher fecility at tion quarry (Table 4.1-1, Figure $.1-1).
4.1-3, -4     Quarry     Excavation depths increased.                   Change judged to be slightly favorable as Eliminate consideration of borrow pit.         quarry location will be preferable to borrow pit's. Onsite availability of material will reduce offsite hauling requicements.
4.1.1 4.1.1.1 4.1-2 Clearing Choice to use open burning during site Change judged to have a slight negative clearing.
4.1.1.2                         No change.
environmental effect.
4.1.1.3 4.1-5         Access     Nodify Barge Unionding Facility.               Change judged to be slightly favorable.
4.1-3, -4 Quarry Excavation depths increased.
Facility                                                   Redesipp minimises dredging.
Change judged to be slightly favorable as Eliminate consideration of borrow pit.
4.1.1.4                         No change.
quarry location will be preferable to borrow pit's.
4.1.1.5                         No change.
Onsite availability of material will reduce offsite hauling requicements.
4.1.1.6 4.1-7 thru   Site       Update terrestrial ecological effects           Change judged to have slightly negative 4.1-8b       Extent     of site clearing and construction.             environmental effect due to increased (Table 4.2-1 and Table 4.1-3)                 aread.
4.1.1.2 No change.
Include ORNL forest management plan.           No change to estimated environmental effects due to CRBRP.
4.1.1.3 4.1-5 Access Nodify Barge Unionding Facility.
Updates impacts on wildlife.                   No change to estimated envirc>sental
Change judged to be slightly favorable.
                                                                            .        effects due to CRBRP.
Facility Redesipp minimises dredging.
4.1.1.7 4.1-11       Human     Eliminates borrow area. Reduces construc-   Change judged to be slightly favorables Activ-     tion activ.ities near cemetery.                 borrow area was in vicinity of Jensley i                                                                                     family cemetery.
4.1.1.4 No change.
l     4.1.1.8 4.1-12       Niti-     Updates redressability                         -Environmentally loconsequential.          .
4.1.1.5 No change.
gation     in light of design changes (i.e, choice of quarry rather Chan borrow pit, addition of demolition fill area, etc.)
4.1.1.6 4.1-7 thru Site Update terrestrial ecological effects Change judged to have slightly negative 4.1-8b Extent of site clearing and construction.
environmental effect due to increased (Table 4.2-1 and Table 4.1-3) aread.
Include ORNL forest management plan.
No change to estimated environmental effects due to CRBRP.
Updates impacts on wildlife.
No change to estimated envirc>sental effects due to CRBRP.
4.1.1.7 4.1-11 Human Eliminates borrow area.
Reduces construc-Change judged to be slightly favorables Activ-tion activ.ities near cemetery.
borrow area was in vicinity of Jensley i
family cemetery.
l 4.1.1.8 4.1-12 Niti-Updates redressability
-Environmentally loconsequential.
gation in light of design changes (i.e, choice of quarry rather Chan borrow pit, addition of demolition fill area, etc.)
i
i


CRBRP ENVIRONMEUfAL REPORT REVIEW                     PAGE 16 ER GECTION     REVISED               ITEM                                                                     DESCRIPTION OF CHANGE                         ENVIRONMENTAL EFFECT 4.1.2 4.1.2.1 4.1-13                   water               Construction water consumption estimates                                               Environmentally inconsequential.
CRBRP ENVIRONMEUfAL REPORT REVIEW PAGE 16 ER GECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT 4.1.2 4.1.2.1 4.1-13 water Construction water consumption estimates Environmentally inconsequential.
Use                 have been increased and vill be provided                                               Additional water consumption still is only by ER amendment in the near future.                                                     a very small fraction of the available Clinch River flow.
Use have been increased and vill be provided Additional water consumption still is only by ER amendment in the near future.
4.1.2.2                                               No change.
a very small fraction of the available Clinch River flow.
4.1.2.3 4.1-15                     Barge             Relocation and redesign will reduce                                                   Change judged to be slightly favorable.
4.1.2.2 No change.
Unload-           dredging.
4.1.2.3 4.1-15 Barge Relocation and redesign will reduce Change judged to be slightly favorable.
ing Facility 4.2                                                     No change.
Unload-dredging.
Table   4.2-9                       Trans-             Transmission corridor acreages updated.                                               Environmentally inconsequential.
ing Facility 4.2 No change.
4.2-1                               mission Corridor 4.3     4.3-1 thru                 Re-                 Updated to account for revised affected                                               Net effect of all changes is judged to be
Table 4.2-9 Trans-Transmission corridor acreages updated.
: 4. 3-3                     sources             areas, and addition of quarry.                                                       environmentally inconsequential.
Environmentally inconsequential.
4.2-1 mission Corridor 4.3 4.3-1 thru Re-Updated to account for revised affected Net effect of all changes is judged to be
: 4. 3-3 sources areas, and addition of quarry.
environmentally inconsequential.
h 4
h 4
0
0


CRBRP ENVIRONNENTAL REPORT REVIEW                   PAGE 17 ER SECTION           REVISED                 ITEN                                                                     DESCRIPTION OF CHANGE                         ENVIRONMENTAL BFFECT 5.1                                                                                                         No change.'
CRBRP ENVIRONNENTAL REPORT REVIEW PAGE 17 ER SECTION REVISED ITEN DESCRIPTION OF CHANGE ENVIRONMENTAL BFFECT 5.1 No change.'
5.1.1                                                                                                       No change.
5.1.1 No change.
5.1.1.1   5.1-3, -4                       Cooling                                                         Updated to reflect effects of cooling       Change demonstrates that latest design System                                                           system redesign.                             Produces effects that are enveloped by previous (approved) designs.
5.1.1.1 5.1-3, -4 Cooling Updated to reflect effects of cooling Change demonstrates that latest design System system redesign.
5.1.1.2   5.1-5                           "No                                                             Updated plume configurations to reflect     Change falls within effects that are Flow"                                                           effects described in 5.1.1.1.               enveloped by previous approvals.
Produces effects that are enveloped by previous (approved) designs.
Plumes 5.1.2     5.1-6, -7                       Thermal                                                         Revised to include reference to NPDES       NPDES requirements exert positive controls Dis-                                                             Permit requirements                         on ef fluent quality.                     i.
5.1.1.2 5.1-5 "No Updated plume configurations to reflect Change falls within effects that are Flow" effects described in 5.1.1.1.
Charge S tandar ds 5.1.3                                                                                                       No channe.
enveloped by previous approvals.
5.1.3.1   5.1-12 thru                     Fish                                                             Discusses recent studies of fish             Environmentally inconsequential.
Plumes 5.1.2 5.1-6, -7 Thermal Revised to include reference to NPDES NPDES requirements exert positive controls Dis-Permit requirements on ef fluent quality.
Habitat                                                         (striped bass and sauger) behavior in the Clinch River. Includes habitats, af gration and spawning.
i.
5.1.3.2                                                                                                     No change.
Charge S tandar ds 5.1.3 No channe.
5.1.3.3                                                                                                     No change.
5.1.3.1 5.1-12 thru Fish Discusses recent studies of fish Environmentally inconsequential.
5.1.3.4                                     -
Habitat (striped bass and sauger) behavior in the Clinch River. Includes habitats, af gration and spawning.
No change.
5.1.3.2 No change.
5.1.3.5                                                                                                     No change.
5.1.3.3 No change.
5.1.4                                                                                                       No change.
5.1.3.4 No change.
5.1.5     5.1-22                         Con-                                                             Update condenser water design flow rate. Environmentally inconsequential.
5.1.3.5 No change.
denser                                                           Also updates Clinch River flow data.
5.1.4 No change.
Entrainment 5.1.6                                                                                                       No change.
5.1.5 5.1-22 Con-Update condenser water design flow rate.
5.1.7                                                                                                       No change, l
Environmentally inconsequential.
5.1.8                                                                                                       No change.
denser Also updates Clinch River flow data.
l 5.2                                       Radio-                                                           This section is being reviewed to determine logical                                                         the signficance of changes to radiological source Biota                                                           term and pathway to warrant re-analysis.
Entrainment 5.1.6 No change.
5.3                                       Radio-                                                           This section is being reviewed to determine the logical                                                         significance of changes to the readiologcal source                 .
5.1.7 No change, l
Impact                                                           term, pathway and population data to warrant
5.1.8 No change.
  ,-                                                                                                          r e-analysis.                                                                           <
l 5.2 Radio-This section is being reviewed to determine logical the signficance of changes to radiological source Biota term and pathway to warrant re-analysis.
5.3 Radio-This section is being reviewed to determine the logical significance of changes to the readiologcal source Impact term, pathway and population data to warrant r e-analysis.
3
3


CRBRP ENVIRONMENTAL REPORT REVIEW                   PAGE IS ER SECTION       REVISED ITEM                 DESCRIPTION OF CHANGE                         ENVImosIENTAL EFFECT           ,)
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE IS ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVImosIENTAL EFFECT
5.4       5.4-1       Effects     Editorial change to clarify and explain     Environmentally inconsequential, of Chem- that an acid feed system is provided.                                                         g ical &     Its use would adjust pH for control of Biocide     corrosion and scaling, and to assure that Dis-       the blowdown is in compliance with the charges     the Draf t NPDES permit limits.
,)
Defined the limits of chlorine               Environmentally inconsequential.
5.4 5.4-1 Effects Editorial change to clarify and explain Environmentally inconsequential, of Chem-that an acid feed system is provided.
g ical &
Its use would adjust pH for control of Biocide corrosion and scaling, and to assure that Dis-the blowdown is in compliance with the charges the Draf t NPDES permit limits.
Defined the limits of chlorine Environmentally inconsequential.
concentration.
concentration.
5.4.1     5.4-2       Waste       Adde discussion of changes to waste         Environmentally inconsequential.
5.4.1 5.4-2 Waste Adde discussion of changes to waste Environmentally inconsequential.
Water       water disposal system that have been Disposal previously described.
Water water disposal system that have been Disposal previously described.
5.4.1.1   5.4-4a     coolant     Total volume discharged increased ' lightly   Environmentally inconsequential.
5.4.1.1 5.4-4a coolant Total volume discharged increased ' lightly Environmentally inconsequential.
System     with no changes in chemical concentrations.
System with no changes in chemical concentrations.
Discharge 5.4.1.2   5.4-5 thru   Discharge Changed per cent differential between         Environmentally inconsequential.
Discharge 5.4.1.2 5.4-5 thru Discharge Changed per cent differential between Environmentally inconsequential.
5.4-8       Plume     ambient and blowdown concentrations.
5.4-8 Plume ambient and blowdown concentrations.
Striped   Described bass response to chemical           Environmentally inconsequential.
Striped Described bass response to chemical Environmentally inconsequential.
Bass       plume.
Bass plume.
Water       Identifies elements not meeting drinking     Environmentally. inconsequential.
Water Identifies elements not meeting drinking Environmentally. inconsequential.
Quality   water standards at 64 isopleth during periods of extended no flow.
Quality water standards at 64 isopleth during periods of extended no flow.
Included consideration of the more           Environmentally inconsequential.
Included consideration of the more Environmentally inconsequential.
stringent of state or federal requirements.
stringent of state or federal requirements.
(Tables 5.4-1, 5.4-2 and 5.4-5).
(Tables 5.4-1, 5.4-2 and 5.4-5).
5.4.2     5.4-12     , Effects   Includes discussion of trihalomethanes       Environmentally inconsequential.
5.4.2 5.4-12
of Bio-     (THM's) (Table 5.4-1) cide Dis-charges 5.4.3     5.4-12a     Storm       Instead of being directly discharged         The incorpration of Obis system Watet       to the Clinch River via catch basins,       provides f urther assurance that the storm water collected by the roof and yard   final effluent discharged to the drains is sent via the storm drainage       river via the impounding pound is system to the impounding pounds for         within applicable effluent standards, settlement and ultimate discharge to the     The effect is judged to be environ-river. Change will be provided in a         mentally favorable.                       _
, Effects Includes discussion of trihalomethanes Environmentally inconsequential.
future amendment.                                                                           '
of Bio-(THM's) (Table 5.4-1) cide Dis-charges 5.4.3 5.4-12a Storm Instead of being directly discharged The incorpration of Obis system Watet to the Clinch River via catch basins, provides f urther assurance that the storm water collected by the roof and yard final effluent discharged to the drains is sent via the storm drainage river via the impounding pound is system to the impounding pounds for within applicable effluent standards, settlement and ultimate discharge to the The effect is judged to be environ-river. Change will be provided in a mentally favorable.
5.4.4                             No change.                                                                            .
future amendment.
5,. 4,. 5                         No change.
5.4.4 No change.
5.5                               No change.
5,. 4,. 5 No change.
5.5 No change.


i CRORP ENVIRONMENTAL a' EPORT REVIEW                 PAGE 19 ER SECTION   REVISED ITEM               DESCRIPTION OF CHANGE                       ENVIROWNENTAL EFFBCT 5.5.1   5.5-1, -2 Effects   Editorial change to clarify that a package   Environmentally inconsequential.
i CRORP ENVIRONMENTAL ' EPORT REVIEW PAGE 19 a
from San- treatment plant will be used during the itary     construction period. A slow sand filter Wastes   unit will be installed following the CRBRP construction period to form a part of the permanent plant for the normal operation of the plant.
ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIROWNENTAL EFFBCT 5.5.1 5.5-1, -2 Effects Editorial change to clarify that a package Environmentally inconsequential.
Third paragraph deleted since the des-       Environmentally inconsequential.
from San-treatment plant will be used during the itary construction period. A slow sand filter Wastes unit will be installed following the CRBRP construction period to form a part of the permanent plant for the normal operation of the plant.
cription of the treatment. plant is given                                         3 in Section 3.7.
Third paragraph deleted since the des-Environmentally inconsequential.
Treated effluent discharges will be         Environmentally inconsequential.
cription of the treatment. plant is given 3
in Section 3.7.
Treated effluent discharges will be Environmentally inconsequential.
processed to meet the Draf t NPCES permit limits instead of "all State and Federal discharge regulations".
processed to meet the Draf t NPCES permit limits instead of "all State and Federal discharge regulations".
Discharges from cooling tower blowdown were Environmentally inconsequential.
Discharges from cooling tower blowdown were Environmentally inconsequential.
revised to be consistent with Table 3.3-4.
revised to be consistent with Table 3.3-4.
5.5.2                       No change.
5.5.2 No change.
5.6                         No change.
5.6 No change.
5.7                         No change.
5.7 No change.
5.8                         No change.
5.8 No change.
5.8.1   5.8-1     Plant     Total acreage committed updated.             Environmentally inconsequential.
5.8.1 5.8-1 Plant Total acreage committed updated.
Site     Changec will be provided in a future amendment.                                                                   l 5.8.2   5.8-2     Water     Water consumption opdated to reflect         Environmentally inconsequential.
Environmentally inconsequential.
Site Changec will be provided in a future amendment.
l 5.8.2 5.8-2 Water Water consumption opdated to reflect Environmentally inconsequential.
Resources latest estimates.
Resources latest estimates.
  .*                                                                                                                i e
i e
e
e


CRBRP ENVIRONMENTAL REPORi REVIEW                     PAGE 20 ER SECTION   REVISED ITEM           DESCRIPTION OF CHANGE                         ENVIRONMENTAL RFFBCT             .l 5.8.3   5.8-2 thru Core   Replaced homogeneous core arrangement       change decreases the heavy metal 5.8-4       Design with heterogeneous core arrangement         commitments in the fuel (U + Pu) resulting in reducing the number of         from 6.5 MT to 5.2 NT, reduces the fuel enrichment zones from 2 to 1,           stainless steel commitments in the             .
CRBRP ENVIRONMENTAL REPORi REVIEW PAGE 20 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL RFFBCT
increasing the Pu enrichment in the         fuel from 26.3 MT to 20.7 MT. The fuel from 18.7-to-27.1 to 33.24, reducing   heavy metal commitment in the blanket the number of fuel assemblies from 198 to   went from 21.7 MT (radial & axial) to 156. This change also increases the         25.8 NT (inner, radial & axial), and number of blanket assemblies from 150       increases the stainless steel commitment (radial) to.214 (inner and radial).         In the blankets from 17.3 MT to 27.6 MT.
.l 5.8.3 5.8-2 thru Core Replaced homogeneous core arrangement change decreases the heavy metal 5.8-4 Design with heterogeneous core arrangement commitments in the fuel (U + Pu) resulting in reducing the number of from 6.5 MT to 5.2 NT, reduces the fuel enrichment zones from 2 to 1, stainless steel commitments in the increasing the Pu enrichment in the fuel from 26.3 MT to 20.7 MT.
The fuel from 18.7-to-27.1 to 33.24, reducing heavy metal commitment in the blanket the number of fuel assemblies from 198 to went from 21.7 MT (radial & axial) to 156. This change also increases the 25.8 NT (inner, radial & axial), and number of blanket assemblies from 150 increases the stainless steel commitment (radial) to.214 (inner and radial).
In the blankets from 17.3 MT to 27.6 MT.
Change judged to be environmentally inconsequential.
Change judged to be environmentally inconsequential.
Revised Pu isotopic composition to be       Environmentally inconsequential.
Revised Pu isotopic composition to be Environmentally inconsequential.
similar to FFTP grade instead of char-I acteristic of LWR discharge.
similar to FFTP grade instead of char-I acteristic of LWR discharge.
Revised refueling scheme from annual         This results in increasing the total to batch which results in increasing the     heavy metal commitments based on a once total number of fuel assemblies, required   through fuel cycles from 20 NT Pu to 27 NT during plant life, from 2,300 to 2,427;     Pu, from 210 MT U to 336 NT U and increasing the totti number of blanket       from 410 MT stainless assemblies from 850 to 2,142.               steel to 600 NT. If reprocessing is assumed, then the total net heavy metal commitment of uranium decreases from 17.7 MT to 14.3 MT and the not gain of bred plutonium decreases from 2.9 NT to 2.3 MT.
Revised refueling scheme from annual This results in increasing the total to batch which results in increasing the heavy metal commitments based on a once total number of fuel assemblies, required through fuel cycles from 20 NT Pu to 27 NT during plant life, from 2,300 to 2,427; Pu, from 210 MT U to 336 NT U and increasing the totti number of blanket from 410 MT stainless assemblies from 850 to 2,142.
steel to 600 NT.
If reprocessing is assumed, then the total net heavy metal commitment of uranium decreases from 17.7 MT to 14.3 MT and the not gain of bred plutonium decreases from 2.9 NT to 2.3 MT.
Change judged to be slightly adverse.
Change judged to be slightly adverse.
5.8.4                     No changes.
5.8.4 No changes.
5.9     5.9-1       Plant Permanent plant acreage is increased.       Environmentally inconsequential.
5.9 5.9-1 Plant Permanent plant acreage is increased.
Environmentally inconsequential.
Site
Site
                                                                                                                      ~
~
a, e
a, e
d V'
d V'
Line 859: Line 1,176:
w
w


CRBRP ENVIRONMENTAL REPORT REVIEW                     PAGE 21 ER SECTION     REVISED           ITEM                     DESCRIPTION CP CHANGE                         ENVIRONMENTAL EFFECT 6.0                                             No change.
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 21 ER SECTION REVISED ITEM DESCRIPTION CP CHANGE ENVIRONMENTAL EFFECT 6.0 No change.
6.1     6.1-1                 Pre-con- Changed to indicate that program was                 Environmentally inconsequential.
6.1 6.1-1 Pre-con-Changed to indicate that program was Environmentally inconsequential.
struc-           conducted.
struc-conducted.
tion         .
tion Monitoring Program 6.1.1 6.1.1.1 6.1-1 thru Base-Completion of baseline aquatic monitoring Environmentally inconsequential.
Monitoring Program 6.1.1 6.1.1.1 6.1-1 thru             Base-           Completion of baseline aquatic monitoring   Environmentally inconsequential.
6.1-24 line program description (results of baseline Monitor-program reported in Section 2.7, (Amendment ing VIII).
6.1-24                 line           program description (results of baseline Monitor- program reported in Section 2.7, (Amendment ing           VIII).
Program (41.1.2 6.1-25 thru Pre-con-Provides a summary description and con-Environmentally inconsequential.
Program (41.1.2 6.1-25 thru             Pre-con- Provides a summary description and con-           Environmentally inconsequential.
6.1-28e struc-clusions of the pre-construction aquatic Change provides data base for deter-tion environmental monitoring.
6.1-28e                 struc-       clusions of the pre-construction aquatic     Change provides data base for deter-tion         environmental monitoring.                   mination of environmental ef fects due Aquatic                                                   to construction as monitored by the construction environmental monitor 1~ng program.
mination of environmental ef fects due Aquatic to construction as monitored by the construction environmental monitor 1~ng program.
6.1.2   6.1-29                   Ground-       UNated to incorporate reference to           Environmentally inconsequential.
6.1.2 6.1-29 Ground-UNated to incorporate reference to Environmentally inconsequential.
water         de pre-construction monitoring program (1976-1977).                                                                         ,
water de pre-construction monitoring program (1976-1977).
6.1.2.1 6.1-29, -29a             Pr e-con-     Provides summary conclusions of the         Environmentally inconsequential.
6.1.2.1 6.1-29, -29a Pr e-con-Provides summary conclusions of the Environmentally inconsequential.
struc-     pre-construction groundwater quality         Changes provides data base f or the tion       monitoring program.                           construction monitoring Program.
struc-pre-construction groundwater quality Changes provides data base f or the tion monitoring program.
construction monitoring Program.
Ground-water
Ground-water
                          . Quality 6.1.3   6.1-30 thru             Meteor-     Updates meteoroloaical descriMion to         Environmentally inconsecuential.
. Quality 6.1.3 6.1-30 thru Meteor-Updates meteoroloaical descriMion to Environmentally inconsecuential.
6.1-33                   ology       incorporate description, inattunentation     Permanent metebrological and data acquisition system for the on-     facilities will be used during plant site permanent meteorological monitoring     construction and operation for on-site stations.                                   meteorological analyses.
6.1-33 ology incorporate description, inattunentation Permanent metebrological and data acquisition system for the on-facilities will be used during plant site permanent meteorological monitoring construction and operation for on-site stations.
meteorological analyses.
Environmentally inconsequential.
Environmentally inconsequential.
Deletes description of on-site temporary meteorological monitoring station.
Deletes description of on-site temporary meteorological monitoring station.
6.1.4                                                                                                                               .
6.1.4 6.1.4.1 6.1-35 th r u Geology Provides update of site geology invest-Environmentally inconsequential.
6.1.4.1 6.1-35 th r u               Geology   Provides update of site geology invest-     Environmentally inconsequential.
6.1-37 igation (results provided in Section 2.4).
6.1-37                                 igation (results provided in Section 2.4).
'6.1.4.2 6.1-38, -39 Land Use. Evaluation of demographic changes in Environmentally inconsequential.
'6.1.4.2   6.1-38, -39               Land Use. Evaluation of demographic changes in         Environmentally inconsequential.
& Demo-process.
                                      & Demo-   process.
graphic Surveys
graphic
  -                                  Surveys


                  ~                                                                                                                             .
~
                                                                                                                                          #L CRIRP ENVIRONMENTAL REPORT REVIEW                     yAag 22 0
#L CRIRP ENVIRONMENTAL REPORT REVIEW yAag 22 0
ER SECTION     REVISED     ITEM                 DESCRIPTION OF CHANGE                         ENVIROllNENTAL EFFBCT           d 6.1.4.3 6.1-39 thru   Terres-     Provides update discussion of baseline       Environmentally inconsequential.
ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIROllNENTAL EFFBCT d
8 6.1-41         trial       terrestrial monitoring program. (Con-Ecology     clusions provided in Section 2.7).
6.1.4.3 6.1-39 thru Terres-Provides update discussion of baseline Environmentally inconsequential.
4 Construc- Provides reference to on-site construction     Environmentally inconsequential.
8 6.1-41 trial terrestrial monitoring program.
6.1-42 tion       environmental monitoring program.
(Con-Ecology clusions provided in Section 2.7).
Monitoring                                                                                         8 6.1.5                               No change.
4 6.1-42 Construc-Provides reference to on-site construction Environmentally inconsequential.
6.1-42a thru   Precon-     Provides complete description and results   Change is judged to be slightly favorabia, a 6.1.5.1 i
tion environmental monitoring program.
1 6.1-43         struc-     of pre-construction radiological (river     Provides basis for improved determination of radiological disturbance av monitored tion       water, groundwater, sediment) monitoring                                                 8 Radio-     program.                                     during the construction radiological l
Monitoring 8
logical                                                 monitoring program.
6.1.5 No change.
Monitoring                                                                                           i 6.2                                 No change, t
6.1.5.1 6.1-42a thru Precon-Provides complete description and results Change is judged to be slightly favorabia, a
6.2.1 6.2.1.1 6.2-1 Chru     Gaseous     Updates plant gaseous effluent monitoring   Change is judged to be slightly favorable.
1 6.1-43 struc-of pre-construction radiological (river Provides basis for improved determination i
f 6.2-2b         Efflu-     locations (32 locations from 13 locations. System will provide ents 1 - steam generator building               - continuous monitors at those locations 9 - reactor containment buildings             which could conceivably undergo         e1     '
tion water, groundwater, sediment) monitoring of radiological disturbance av monitored during the construction radiological 8
3 - reactor service building                   significant increase in detectable 1 - radwaste area                             Icvels 1 - plant service building                 - periodic sampling for areas as           t ,
l Radio-program.
logical monitoring program.
Monitoring i
6.2 No change, t
6.2.1 6.2.1.1 6.2-1 Chru Gaseous Updates plant gaseous effluent monitoring Change is judged to be slightly favorable.
6.2-2b Efflu-locations (32 locations from 13 locations.
System will provide f
ents 1 - steam generator building
- continuous monitors at those locations 9 - reactor containment buildings which could conceivably undergo e1 3 - reactor service building significant increase in detectable 1 - radwaste area Icvels 1 - plant service building
- periodic sampling for areas as t,
l 14 - turbine generator buildings necessary.
l 1
l 1
14  - turbine generator buildings                necessary.                                      l 3 - steam generator buildings 6
3 - steam generator buildings 6
PSB       Liquid effluents go to liquid radwaste       Environmentally inconsequential.
PSB Liquid effluents go to liquid radwaste Environmentally inconsequential.
Liquid     system for reprocessing.                                                                 4 Effluents i
Liquid system for reprocessing.
6.2.1.2 6.2-3 thru     Pre-or     Provides current (atmospheric, terrestrial, Environmentally inconsequential.             I 6.2-10         peration- aquatic groundwater) radiological monitoring al Rad-   programs for the pre-operational and iologi-   operational phases,                                                                       e cal Monitoring t
4 Effluents i
6.2.2                               No change.
6.2.1.2 6.2-3 thru Pre-or Provides current (atmospheric, terrestrial, Environmentally inconsequential.
6.2.3                               No change, e
I 6.2-10 peration-aquatic groundwater) radiological monitoring al Rad-programs for the pre-operational and iologi-operational phases, e
6.2.4                               No change.
cal Monitoring t
            * ~6.2.5                               No change.                                                        ,                      e, Environmentally inconsequential.
6.2.2 No change.
* 6 .'3   6.3-1         Other       Deletes monitoring stations at TVA's Monitor- Kingston steam plant and Bull Run ing         steam plant.                                                                             8-ProMrams
6.2.3 No change, e
6.2.4 No change.
e,
* ~6.2.5 No change.
6.'3 6.3-1 Other Deletes monitoring stations at TVA's Environmentally inconsequential.
Monitor-Kingston steam plant and Bull Run ing steam plant.
8-ProMrams


CRBRP ENVIRONMENTAL REPORT REVIEW                     PAGE 23 ER SECTION     REVISED                                                                             ITEM                   DESCRIPTION OF CHANGE                         ENVIRONMENTAL BFFBCT 7.1     ( ALL CHANGES 'IO SECTION 7.1 '1 HAT ARE DESCRIBED BELOW WILL BE PFDVIDED IN A FUTURE AMENDMENT 'ID 'tHE ER) 7.1.1 7.1.1.1 7.1-1                                                                                   Meteor-         Meterology contained in Section 2.6 as ology           provided by Amendment IX will be used in the computations.
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 23 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL BFFBCT 7.1
4 7.1.1.2 7.1-2 th r u                                                                           Method-         Methodology changes, as appropriate, will be 7.1-6                                                                                   ology           provided.         -
( ALL CHANGES 'IO SECTION 7.1 '1 HAT ARE DESCRIBED BELOW WILL BE PFDVIDED IN A FUTURE AMENDMENT 'ID 'tHE ER) 7.1.1 7.1.1.1 7.1-1 Meteor-Meterology contained in Section 2.6 as ology provided by Amendment IX will be used in the computations.
7.1.1.3                                                                                                           No change.
4 7.1.1.2 7.1-2 th r u Method-Methodology changes, as appropriate, will be 7.1-6 ology provided.
7.1.2                                                                                                                                                                                                     ,
7.1.1.3 No change.
7.1.2.1                                                                                                           No change.
7.1.2 7.1.2.1 No change.
7.1.2.2 7.1-8, -9                                                                               Eteam           The amount of tritiated water released       The combined effect of these changes is to Drum           to the environment is 353,000 lbs. Instead   increase the site boundary whole body dose valve             of 450,000 lbs.                             from 1.77 ares to 5.50 mreas both are
7.1.2.2 7.1-8, -9 Eteam The amount of tritiated water released The combined effect of these changes is to Drum to the environment is 353,000 lbs. Instead increase the site boundary whole body dose valve of 450,000 lbs.
from 1.77 ares to 5.50 mreas both are
( 2.1)
( 2.1)
* envronmentally inconsequential.
* envronmentally inconsequential.
The tritium concentration has increased from .25 x 10-6 C1/g to .62 x 10-6 C1/g.
The tritium concentration has increased from.25 x 10-6 C1/g to.62 x 10-6 C1/g.
Conden-         The tritium concentration in the Condensate The short-term downstream tritium concen-sate           Storage Tank increased to .62 x 10-6 Ci/g   tration in the Clinch River increased from Storage       from .25 x 10-6 C1/g.                                     C1/g to 2.89 x 10-12 cgfg Ik8x10-12 Tank                                                        al er de postulated leaks both are         !
Conden-The tritium concentration in the Condensate The short-term downstream tritium concen-sate Storage Tank increased to.62 x 10-6 Ci/g tration in the Clinch River increased from Ik8x10-12 Storage from.25 x 10-6 C1/g.
Leak                                                         environmentally inconsequential.
C1/g to 2.89 x 10-12 cgfg al er de postulated leaks both are Tank Leak environmentally inconsequential.
(2.2) 7.1.2.3 7.1-10 thru                                                                             RAPS           RAPS components moved to RCB.               The environmental effects are judged to be 7.1-15                                                                                                                                               favorable. RAPS leakage is processed through the RCB HVAC.
(2.2) 7.1.2.3 7.1-10 thru RAPS RAPS components moved to RCB.
Padwaste The tritium concentration in the                   The combined effect of these changes is to System         storage tank water has increased to         reduce the postulated spill cleanup time Failures .62 x 10-6 C1/g from .25 x 10-6 Ci/g.             and increase the whole body dose at the j                                                                                                                                                           (3.1)                                                     site boundary to 1.01 x 10-5 area from Storage tank cell parameters have           9.4 x 10-6 mrom,. but both are changed such as the floor area increase     environmentally inconsequential.
The environmental effects are judged to be 7.1-15 favorable. RAPS leakage is processed through the RCB HVAC.
Padwaste The tritium concentration in the The combined effect of these changes is to System storage tank water has increased to reduce the postulated spill cleanup time Failures
.62 x 10-6 C1/g from.25 x 10-6 Ci/g.
and increase the whole body dose at the j
(3.1) site boundary to 1.01 x 10-5 area from Storage tank cell parameters have 9.4 x 10-6 mrom,. but both are changed such as the floor area increase environmentally inconsequential.
I to 1,000 ft2 from 800 ft2 I
I to 1,000 ft2 from 800 ft2 I
l Sump pump flow capacity increased to 50 gpa from 10 gpm.
l Sump pump flow capacity increased to 50 gpa from 10 gpm.
Line 928: Line 1,266:
5 e
5 e


CRBRP ENVIRONMENTAL REPORT REVIEW                                       PAGE 24 ER SEMION       REVIBED                                                                         ITEM               DESCRIPTION OF CHANGE                                           ENVIROMIENTAL EFFECT                       l Liquid   Tritium concentration in storage tank water The combined effect of these changes is Radwaste has increased due to change in interface       to increase the site boundary whole body                             ;
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 24 ER SEMION REVIBED ITEM DESCRIPTION OF CHANGE ENVIROMIENTAL EFFECT l
System    diffusion  coe[ficients. Concentration is  dose 2.13 xfrom is postulated accident to 10- p from 5.0 x 10-3 areas both are Tank     now .62 x 10 0 C1/g in SGS.
Liquid Tritium concentration in storage tank water The combined effect of these changes is Radwaste has increased due to change in interface to increase the site boundary whole body is postulated accident to dose from p from 5.0 x 10-3 areas both are System diffusion coe[ficients. Concentration is Tank now.62 x 10 0 C1/g in SGS.
(3.2)                                                   environmentally inconsequential.
2.13 x 10-(3.2) environmentally inconsequential.
Spill cleanup time is reduced to 6.7 hours by using higher capacity sump pumps.
Spill cleanup time is reduced to 6.7 hours by using higher capacity sump pumps.
7.1.2.3.3                                                                                   RAPS       Accident redefined due to relocation of       The environmental effects are judged to be
7.1.2.3.3 RAPS Accident redefined due to relocation of The environmental effects are judged to be Noble RAPS components.
* Noble     RAPS components.                             favorable.
favorable.
Gas Stor-                                             '
Gas Stor-age vessel Rupture (3.3) 7.1.2.3.4 Deleted due to deletion of equalization line.
age vessel Rupture (3.3) 7.1.2.3.4                                                                                               Deleted due to deletion of equalization line.
Rupture of cover gas Equalization Line (3.4) 7.1.2.4 7.1-16a thru Sodium Analyses revised to update computations.
Rupture of cover gas Equalization Line (3.4) 7.1.2.4   7.1-16a thru                                                                       Sodium     Analyses revised to update computations.     Environmentally inconsequential.                                           i 7 4-21                                                                             Fire                                                                                                                               .
Environmentally inconsequential.
Accidents       *
i 7 4-21 Fire Accidents (4.1)
(4.1)
(4.2) 7.1.2.5 7.1-22 thru Fuel The current plant design has a higher purge The net ef fect of the changes is to 7.1-24 Failures rate of the cover gas which has reduced the reduce the site boundary whole body (5.1) available Xenon and Krypton activity to dose to 8.4 x 10-5 area from 3.4 x 56,588 Ci from 65,816 C1.
(4.2) 7.1.2.5   7.1-22 thru                                                                         Fuel     The current plant design has a higher purge The net ef fect of the changes is to 7.1-24                                                                             Failures rate of the cover gas which has reduced the reduce the site boundary whole body (5.1)     available Xenon and Krypton activity to       dose to 8.4 x 10-5 area from 3.4 x 56,588 Ci from 65,816 C1.                     10-4 areas both are environmentally                                   ,
10-4 areas both are environmentally inconsequential.
inconsequential.
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CRBRP ENVIRONNENTAL REPORT REVIEW                       PAGE 25 ER SECTION   REVISED   ITEN             DESCRIPTION OF CH ANGE                         ENVIROWNENTAL EFFBCT                 l 7.11-24 thru Steam     A Levised DBL for the steam generator       The net ef fect of the changes is to 7.1-27       Generator results in 465 lbs. of sodium mixing with     increase the mrem site Mundaky         b   do Tube      with water instead of 337 lbs. of sodium. to 8.3 x 10-2       from .1whol x 1 8-4 odmfen:se Rupture   The tritium concentration in SGS is now       both are insignificant.
CRBRP ENVIRONNENTAL REPORT REVIEW PAGE 25 ER SECTION REVISED ITEN DESCRIPTION OF CH ANGE ENVIROWNENTAL EFFBCT l
(5.2)     .62 x 10-6 C1/g and in the :ISTS is
7.11-24 thru Steam A Levised DBL for the steam generator The net ef fect of the changes is to 7.1-27 Generator results in 465 lbs. of sodium mixing with increase the site Mundaky whol8 odmfen:se b
                              .13 x 10-6 C1/g.                             This change is judged to be adverse, since this could potentially Deleted the centfifugal separator from       result in the release of more sodium-the Sodium-Water Reaction Pressure Relief     water reaction particulates into the Subsystem (SWRPRS).                           atmosphere.
do to 8.3 x 10-2 mrem from
The duration of the SWRPR venting to the atmosphere was increased from 15 to 28 seconds as a result of an updated TRANSWRAP No change to estimated environmental code analysis of this event. This more       effects.                                         3 detailed analysis tracks the primary sodium                                                     t which might leak into the intermediate sodium.
.1 x 1
It considers the length of piping between Ohe IHX and the superheater inlet, and the reduced                                                     -
-4 Tube with water instead of 337 lbs. of sodium.
sodium flow during blowdown and predicts that no primary sodium will reach the superheater during                                               l this event for subsequent release to Uhe atmosphere.
Rupture The tritium concentration in SGS is now both are insignificant.
(5.2)
.62 x 10-6 C1/g and in the :ISTS is
.13 x 10-6 C1/g.
This change is judged to be adverse, since this could potentially Deleted the centfifugal separator from result in the release of more sodium-the Sodium-Water Reaction Pressure Relief water reaction particulates into the Subsystem (SWRPRS).
atmosphere.
The duration of the SWRPR venting to the atmosphere was increased from 15 to 28 seconds as a result of an updated TRANSWRAP No change to estimated environmental code analysis of this event. This more effects.
3 detailed analysis tracks the primary sodium t
which might leak into the intermediate sodium.
It considers the length of piping between Ohe IHX and the superheater inlet, and the reduced sodium flow during blowdown and predicts that no primary sodium will reach the superheater during l
this event for subsequent release to Uhe atmosphere.
I
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CRBRP ENVIRONMENTAL REPORT REVIEN                   PAGE 26 ER SECTION     REVISED ITEM               DESCRIPTION OF CHANGE                       ENVIRONMENTAL EFFBCT 7.1.2.6 7.1-28 thru Spent     Earliest scheduled time for fuel assembly   The combined ef fect of the changes is to 7.1-32     Fuel     handling is increased to 8 days from 87     increase the s Cladding hours.                                      fra1.5x10gteboundarywholebgdydose nres to 2.13 x 10- area 4                         Pallure                                               both are environmentally inconsequential.
CRBRP ENVIRONMENTAL REPORT REVIEN PAGE 26 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFBCT 7.1.2.6 7.1-28 thru Spent Earliest scheduled time for fuel assembly The combined ef fect of the changes is to fra1.5x10gteboundarywholebgdydose 7.1-32 Fuel handling is increased to 8 days from 87 increase the s nres to 2.13 x 10-area Cladding hours.
in the   Revised ORIGEN isotope library was used EVTM     to generate fission product inventories.
4 Pallure both are environmentally inconsequential.
in the Revised ORIGEN isotope library was used EVTM to generate fission product inventories.
(6.1)
(6.1)
Spent     The same changes that applied to Accident   The net result of the changes is to Fuel     6.1 apply here.                             increase the site boundary whole body Cladding                                             dose for this postulated accident fron
Spent The same changes that applied to Accident The net result of the changes is to Fuel 6.1 apply here.
;                          Failure                                               1.5 mrem to 2.1 mesa, both are environ-i in the EVTM                                           mentally inconsequential.
increase the site boundary whole body Cladding dose for this postulated accident fron Failure 1.5 mrem to 2.1 mesa, both are environ-i in the EVTM mentally inconsequential.
(6.2)
(6.2)
Accident- Revised ORIGEN isotope library was used     The combined ef fect of the changes to ally       to generator fission product inventories   increase the site boondary whole body Opening   Revisions were based on newer calculational dose to 1.08 stem from .07 areas both a Floor   schemes.                                   are environmentally inconsequential.
Accident-Revised ORIGEN isotope library was used The combined ef fect of the changes to ally to generator fission product inventories increase the site boondary whole body Opening Revisions were based on newer calculational dose to 1.08 stem from.07 areas both a Floor schemes.
Valve (6.3) 7.1.2.7 7.1-33     Spent     Isotope inventories were revised using     The combined ef fect of the changes is to Fuel       updated ORIGEN libraries. The ORIGEN       decrease the site boundary whole body dose Cask       changes were due to revisions in the       to 2.8 x 10-4 meen from 9.3 x 10-3 mrems Drop       library calculational schemes.             both are environmentally inconsequential.
are environmentally inconsequential.
Valve (6.3) 7.1.2.7 7.1-33 Spent Isotope inventories were revised using The combined ef fect of the changes is to Fuel updated ORIGEN libraries. The ORIGEN decrease the site boundary whole body dose Cask changes were due to revisions in the to 2.8 x 10-4 meen from 9.3 x 10-3 mrems Drop library calculational schemes.
both are environmentally inconsequential.
(7.1)
(7.1)
The fuel has undergone an 80 day cooling period instead of 100 days.
The fuel has undergone an 80 day cooling period instead of 100 days.
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CRBRP ENVIRONMENTAL REPORT REVIEW                       PAGE 21 l
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 21 l
ER l   SECTION     REVIS ED   ITEM               DESCRIPTION OF CHANGE                           ENVIRONMENTAL EFFECT 7.1.2.8 7.1-3 4 th r u Primary   Primary sodium isotope inventory has           The combined effect of the changes is to 7.1-43         Sodium     changed due to revisions in the ORIGEN         reduce the site boundary whole body dose Drain     library calculational schemes.                 from 9.7 x 10-4 rem to 8.4 x 10-5 rems Tank                                                       both are environmentally inconsequential.
ER l
Failure   Cell 102 A dimensions have changed. For (8.1)     example, the cell volume s 45,000 f t.*
SECTION REVIS ED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT 7.1.2.8 7.1-3 4 th r u Primary Primary sodium isotope inventory has The combined effect of the changes is to 7.1-43 Sodium changed due to revisions in the ORIGEN reduce the site boundary whole body dose Drain library calculational schemes.
from 9.7 x 10-4 rem to 8.4 x 10-5 rems Tank both are environmentally inconsequential.
Failure Cell 102 A dimensions have changed. For (8.1) example, the cell volume s 45,000 f t.*
and was 68,000 f t.3 The potential sodium spill volume has increased to 35,000 gallons from 32,000 gallons.
and was 68,000 f t.3 The potential sodium spill volume has increased to 35,000 gallons from 32,000 gallons.
Primary   The postulated sodium spill has been           Tne combined ef fect of the changes is to coolant   reduced to 135,000 lbs. from 193,000.           increase the site boundary whole body dose Sodium                                                     from 8.3 x 10-4 rem. to 1.25 x 10-2 rems b th Spill     It was conservatively assumed that the         are environmentally inconsequential.
Primary The postulated sodium spill has been Tne combined ef fect of the changes is to coolant reduced to 135,000 lbs. from 193,000.
(8.2)     aerosol leaked to the RCB was vented directly to the environmental. Previously a leak rate of .1 volt / day at 10 psig. was assumed as the leak rate.
increase the site boundary whole body dose Sodium from 8.3 x 10-4 rem. to 1.25 x 10-2 rems b th Spill It was conservatively assumed that the are environmentally inconsequential.
Ex-Con-   The postulated spill has been reduced           The net ef fect of the changes is to reduce tainment from 90,000 gal. to 45,000 gal, of sodium.       the site boundary whole body dose f rom Primary   This is the result of a failure of one of       7.9 x 10-3 ren to 4.2 x 10-5 rems both are Coolant   two storage vessele in the cell rather         environmentally inconsequential.
(8.2) aerosol leaked to the RCB was vented directly to the environmental. Previously a leak rate of.1 volt / day at 10 psig. was assumed as the leak rate.
Sodium     two.
Ex-Con-The postulated spill has been reduced The net ef fect of the changes is to reduce tainment from 90,000 gal. to 45,000 gal, of sodium.
Spill (8.3)     The leak rate of aerosol was based on the cell design leak rate of .6 volt / day at 3.9 psig.
the site boundary whole body dose f rom Primary This is the result of a failure of one of 7.9 x 10-3 ren to 4.2 x 10-5 rems both are Coolant two storage vessele in the cell rather environmentally inconsequential.
Sodium two.
Spill (8.3)
The leak rate of aerosol was based on the cell design leak rate of.6 volt / day at 3.9 psig.
rather than 100 volt / day at 10 peig which was previously used.
rather than 100 volt / day at 10 peig which was previously used.
Ex-Ves-   Aerosol leakage to the RSB from the cell       The net effect is to reduce the site sel Stor- was calculated based on a cell design           boundary whole body dose from 2.1 x 10-4 age Tank leak rate of .36 volt / day at 12 psig.         arem to 4.3 x 10-4 meens both are Coolant   rather Chan 100 volt / day at 10 psig.         environmentally inconsequential.
Ex-Ves-Aerosol leakage to the RSB from the cell The net effect is to reduce the site sel Stor-was calculated based on a cell design boundary whole body dose from 2.1 x 10-4 age Tank leak rate of.36 volt / day at 12 psig.
Rupture   This approach will release less aerosol (8.4)     into de environment.
arem to 4.3 x 10-4 meens both are Coolant rather Chan 100 volt / day at 10 psig.
Large     The SGS tritium concentration has in-           The combined effect is to increase the Steam     creased to .62 x 10-6 C1/g from .25             site boundary whole body dose to 4.7 aren Line       x 10-6 C1/g. This is the result of             from 1.9 mress both are environmentally
environmentally inconsequential.
              ,              Break     changes in diffusion coefficients across         inconsequential.
Rupture This approach will release less aerosol (8.4) into de environment.
(8.5)     system interface boundaries.
Large The SGS tritium concentration has in-The combined effect is to increase the Steam creased to.62 x 10-6 C1/g from.25 site boundary whole body dose to 4.7 aren Line x 10-6 C1/g. This is the result of from 1.9 mress both are environmentally Break changes in diffusion coefficients across inconsequential.
(8.5) system interface boundaries.
The newer design basis results in 312,000 lbs.
The newer design basis results in 312,000 lbs.
  . -                                  of water being released from dhe PRV instead of 479,000 lbs. The power relief vent period
of water being released from dhe PRV instead of 479,000 lbs.
* has been increased from 1.5 to 5.7 hours.
The power relief vent period has been increased from 1.5 to 5.7 hours.


CRBRP ENVIRONMENTAL REPORT REVIEW                                           PAGE 28 ER SECTION     REVISED ITEM                     DESCRIPTION OF CHANGE                                               ENVIROH9 ENTAL BFFBCT 7.1.3                         No change.
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 28 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIROH9 ENTAL BFFBCT 7.1.3 No change.
7.2.1   7.2-1       Hydrogen The total amount of Hydrogen gas stored has Environmentally inconsequential.
7.2.1 7.2-1 Hydrogen The total amount of Hydrogen gas stored has Environmentally inconsequential.
Gas       not changed; however,' the volume has been Storage   restated in terms of standard volume (28,000 l
Gas not changed; however,' the volume has been Storage restated in terms of standard volume (28,000 l
SCF) rather than bottled storage capacity. This change will be provided in a future amendment to the ER.
SCF) rather than bottled storage capacity. This change will be provided in a future amendment to the ER.
t 7.2.2   New         Oil and   Systems / Buildings involved with the                                       Incorporation of these features in station Hazard-   storage, transfer, or loading / unloading                                   design provides further protection against ous       of any oil or hazardous material are                                       spill of oil and hezardous material               ,
t 7.2.2 New Oil and Systems / Buildings involved with the Incorporation of these features in station Hazard-storage, transfer, or loading / unloading design provides further protection against ous of any oil or hazardous material are spill of oil and hezardous material Material provided with secondary containment reaching the local environment.
Material provided with secondary containment                                         reaching the local environment.
Spills systems capable of containing the Ervironmentally inconsequential.
Spills   systems capable of containing the                                           Ervironmentally inconsequential.
largest source of an oil or hazardous material spill without any adverse environmental impact. This change will be provided in a future amendment to the ER.
largest source of an oil or hazardous material spill without any adverse environmental impact. This change will be provided in a future amendment to the ER.
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CRBRP ENVIRONMENTAI. REPORT REVIEW                         PAGE 29 ER SECTION   REVISED                           ITEM                               DESCRIPTION OF CHANGE                               ENVIRONMENTAL EFFBCT 8.0 8.1     (All Future)                       Socio-                       Complete assessment of socio-economic               This change is judged to be slightly favorable. It provides current data 8.2                                         economic parameters of CRBRP plant construction
CRBRP ENVIRONMENTAI. REPORT REVIEW PAGE 29 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFBCT 8.0 8.1 (All Future)
,    8.3                                                                     and operation is being provided in a future base f or evaluation of socio-economic
Socio-Complete assessment of socio-economic This change is judged to be slightly 8.2 economic parameters of CRBRP plant construction favorable. It provides current data 8.3 and operation is being provided in a future base f or evaluation of socio-economic amendment. Assessment is based on assessment.
!                                                                              amendment. Assessment is based on                   assessment.
current construction manpower rcquirements 1980 census and 1981 community service and infra-structure data.
current construction manpower rcquirements
!                                                                              1980 census and 1981 community service and infra-structure data.
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CRBRP ENVIRONMENTAL REPORT REVIEW                     PAGE 30 ER SECTION   REVISED                   ITEM             DESCRIPTION OF CHANGE                           ENVIRONMENTAL EFFBCT 9.1     To Be Provided               Altern-   This section will be addressed in tne       Environmenta A Ay anconsequenta at. 1 ative     supplement to the LMFBR Program Final Ap-       Environmental Statement (PFES) . This pr oaches section of the ER will be revised accordingly.
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 30 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFBCT 9.1 To Be Provided Altern-This section will be addressed in tne Environmenta A Ay anconsequenta at.
9.2     To Be Provided               Altern-   a) Same as Section 9.1 above.                 Environmentally inconsequential.
1 ative supplement to the LMFBR Program Final Ap-Environmental Statement (PFES). This pr oaches section of the ER will be revised accordingly.
ative     b) For discussion of Hook-on arrangements Sites &       refer to response to Question 320.1R Plant         and 320.2R.
9.2 To Be Provided Altern-a) Same as Section 9.1 above.
Arrange- c) Further discussion of candidate sites will ments         be provided in the near future.
Environmentally inconsequential.
ative b) For discussion of Hook-on arrangements Sites &
refer to response to Question 320.1R Plant and 320.2R.
Arrange-c) Further discussion of candidate sites will ments be provided in the near future.
d) Section 9.2.5.3.4 will be updated to reflect response to Question 230.5R.
d) Section 9.2.5.3.4 will be updated to reflect response to Question 230.5R.
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CRBRP ENVIRONMENTAL REPORT REVIEW                 PAGE 33 ER SECTION   REVISED ITEM           DESCRIPTION OF CHANGE                     ENVIRONIENTAL EFFBCT         ,
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 33 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONIENTAL EFFBCT 12 12.0-1 thru Permits Provides revised listing of Non-NRC No changes in estimated environmental 12.0-7 permits purpose legislation and effects due to this tabulation.
12     12.0-1 thru Permits Provides revised listing of Non-NRC       No changes in estimated environmental 12.0-7             permits purpose legislation and           effects due to this tabulation.
regulation enacting permit approval or notification.
regulation enacting permit approval or notification.
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CRBRP ENVIRONMENTAL REPO1T REVIEW                     PAGE 34 ER SECTION   REVISED                 ITEN                                 DESCRIPTION OF CHANGE                         ENVIROINENTAL EFFECT 13     13.0-3 thru                 Refer-                       Update to include Amendment IX references. No environmental effects.
CRBRP ENVIRONMENTAL REPO1T REVIEW PAGE 34 ER SECTION REVISED ITEN DESCRIPTION OF CHANGE ENVIROINENTAL EFFECT 13 13.0-3 thru Refer-Update to include Amendment IX references.
13.0-38                     ences
No environmental effects.
        /
13.0-38 ences
/
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CRBRP ENVIRONMENTAL REPORT REVIEW                       PAGE 35 ER SECTION     REVISED ITEN           DESCRIPTION OF CHANGE                             ENVIRONNENTAL BFFECT 14       14.1-2 thru Clean   Incorporates 1977 amendment to the State     The change is judged to be slightly (Appen- 14.1-81     Water   of Tennessee Water Quality Criteria         favorable. It provides criteria for dix to               Act of incorporates the 1977 clean water act       CRBRP design for reduction of impact on Ssction             1977   amendments to the Federal Water Pollution   the environment.
CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 35 ER SECTION REVISED ITEN DESCRIPTION OF CHANGE ENVIRONNENTAL BFFECT 14 14.1-2 thru Clean Incorporates 1977 amendment to the State The change is judged to be slightly (Appen-14.1-81 Water of Tennessee Water Quality Criteria favorable. It provides criteria for dix to Act of incorporates the 1977 clean water act CRBRP design for reduction of impact on Ssction 1977 amendments to the Federal Water Pollution the environment.
2.5)                         Control Act.
2.5)
14       14.3-3     Sauger Provides update information on spawning     No environmental effects.
Control Act.
(Appen-                     of sauger.
14 14.3-3 Sauger Provides update information on spawning No environmental effects.
dix to
(Appen-of sauger.
* S ction 2.7)                                       -
dix to S ction 2.7) 14 14.6-3 Cooling Updates cooling tower blowdown rate The increase in cooling tower blowdown (Appen-Tower provides current design blowdown is judged to be insignificant compared dix to temperature values.
14       14.6-3     Cooling Updates cooling tower blowdown rate         The increase in cooling tower blowdown ,
to the Clinch River flow rate.
(Appen-             Tower   provides current design blowdown             is judged to be insignificant compared !
dix to                       temperature values.                         to the Clinch River flow rate.
Ssction 10.3)
Ssction 10.3)
I l
I h
4 i
l 4
i


s    I ?.
I ?.
ITEM 320.9R Update economic cost analyses developed in support of your decisions regarding alternative plant designs.
s ITEM 320.9R Update economic cost analyses developed in support of your decisions regarding alternative plant designs.
Specifically, Sections 10.1.5 (Tables 10.1-9 and 10.1-10) ,
Specifically, Sections 10.1.5 (Tables 10.1-9 and 10.1-10),
10.2.5 (Tables 10.2-1 and 10.2-2) ,10.3.5 (Table 10.3-2) and 10.6.5.
10.2.5 (Tables 10.2-1 and 10.2-2),10.3.5 (Table 10.3-2) and 10.6.5.
RES PONSE Although the economic costs presented in the tables identified in the question are not up-to-date in current prices, the analyses remain valid.     Since the time of the evaluation of these analyses by the NRC (NUREG-0319, February 1977) the major change has been the effect of inflation on the costs (both economic and environmental) included in the analyses. However, general price inflation has not affected the relative ranking of the alternatives nor the relative balance of environmental costs to economic costs.     The only change that would invalidate the analyses would be the development of an advantage (either technological or economic) not previously available for one of the alternatives.     For the facility systems referenced in the question, i.e.,     cooling system, sanitary waste system, and intake and discharge systems, significant changes such as new technologies with a lower cost that would require reanalysis of       i alternatives have not developed.                                     l Fur thermor e, the design, testing, and procurement of these facility systems are at advanced stages of completion. If a reanalysis were to be undertaken at this time, any alternative would have to demonstrate economic and environmental cost 0320.9R-1
RES PONSE Although the economic costs presented in the tables identified in the question are not up-to-date in current prices, the analyses remain valid.
Since the time of the evaluation of these analyses by the NRC (NUREG-0319, February 1977) the major change has been the effect of inflation on the costs (both economic and environmental) included in the analyses.
However, general price inflation has not affected the relative ranking of the alternatives nor the relative balance of environmental costs to economic costs.
The only change that would invalidate the analyses would be the development of an advantage (either technological or economic) not previously available for one of the alternatives.
For the facility systems referenced in the
: question, i.e., cooling system, sanitary waste system, and intake and discharge systems, significant changes such as new technologies with a lower cost that would require reanalysis of i
alternatives have not developed.
Fur thermor e, the design, testing, and procurement of these facility systems are at advanced stages of completion.
If a reanalysis were to be undertaken at this time, any alternative would have to demonstrate economic and environmental cost 0320.9R-1


                                                                  ~     ~             --      -
~
l advantages greater than the selected design's costs.             These costs to be assessed against alternative systems would properly include                 j the amounts expended to date on the selected systems to design,                   l test and procure the equipment, the costs to termiante current contracts, and the environmental costs associated with scrapping fabricated components. In the case of the selected cooling system for the plant, i. e. , a mechanical draf t wet cooling tower, changes from this design could cause changes in plant performance parameters that might have costly cascading effects on the                         l current design and procurement of the steam / water cycle                         )
~
equipment.         All of these " sunk" costs would properly be included in any updated analyses because the applicant has proceeded on the basis of previously valid evaluations of alternatives.
advantages greater than the selected design's costs.
1 i
These costs to be assessed against alternative systems would properly include j
I l
the amounts expended to date on the selected systems to design, test and procure the equipment, the costs to termiante current contracts, and the environmental costs associated with scrapping fabricated components.
J 4
In the case of the selected cooling system for the plant, i. e., a mechanical draf t wet cooling tower, changes from this design could cause changes in plant performance parameters that might have costly cascading effects on the current design and procurement of the steam / water cycle equipment.
Q320.9R-2
All of these " sunk" costs would properly be included in any updated analyses because the applicant has proceeded on the basis of previously valid evaluations of alternatives.
1 I
l J
4 Q320.9R-2


ITEM 460.1R Have any design changes been made in the radwaste treat-ment systems since the FES was published 2/77?
ITEM 460.1R Have any design changes been made in the radwaste treat-ment systems since the FES was published 2/77?


===RESPONSE===
===RESPONSE===
Yes.                                       These design changes are stated and included in the Response to Question 290.1R.
Yes.
These design changes are stated and included in the Response to Question 290.1R.


l ITEM 460.2R Have any changes been made that would cause the source term to be altered? This could include fuel and coolant specifications and behavior as well as operational aspects.
ITEM 460.2R Have any changes been made that would cause the source term to be altered?
RES PONSE o There has been no change to the coolant specifications.                 !
This could include fuel and coolant specifications and behavior as well as operational aspects.
o   There have been changes to the fuel specifications due to the core design change from the homogeneous core to the heterogeneous core and these changes do result in some change to the source term. The following table provides a comparison of homogeneous core and heterogeneous core fuel specifications and the target average and peak burnups.
RES PONSE o
There has been no change to the coolant specifications.
o There have been changes to the fuel specifications due to the core design change from the homogeneous core to the heterogeneous core and these changes do result in some change to the source term.
The following table provides a comparison of homogeneous core and heterogeneous core fuel specifications and the target average and peak burnups.
9 0
9 0
0460.2R-1
0460.2R-1


Heterogenous Homogeneous Soecification                     Current Core Previous Core i
Heterogenous Homogeneous Soecification Current Core Previous Core i
Total heavy metal                     5.2         6.5
Total heavy metal 5.2 6.5
              'nventory i                  in fuel (metric tons)
'nventory in fuel i
Plutonium enrichment                 33.2     18.7 to 32.0 in fuel (Weight %)
(metric tons)
Plutonium enrichment 33.2 18.7 to 32.0 in fuel (Weight %)
Isotopic Composition of Feed Plutonium (%)
Isotopic Composition of Feed Plutonium (%)
Pu-238                             0.1         1 Pu-23 9                           86.0         71 Pu-240                           11.7         19 Pu-241                             2.0         7 Pu-242                             0.2         2 Target Burnup (MWD /T)
Pu-238 0.1 1
Average                         80,000     100,000 Peak                           110,000     150,000 Q460.2R-2
Pu-23 9 86.0 71 Pu-240 11.7 19 Pu-241 2.0 7
Pu-242 0.2 2
Target Burnup (MWD /T)
Average 80,000 100,000 Peak 110,000 150,000 Q460.2R-2


J o However, it should be noted that in determining the source terms for Proj ect use, the isotopic composition of LWR discharge plutonium was used instead of the composition in the fuel specification for conservatism.
J o
However, it should be noted that in determining the source terms for Proj ect use, the isotopic composition of LWR discharge plutonium was used instead of the composition in the fuel specification for conservatism.
o The source terms in the cover gas have remained relatively unchanged from the basis used in the 1977 amendments to the ER.
o The source terms in the cover gas have remained relatively unchanged from the basis used in the 1977 amendments to the ER.
o changes in the inert gas processing system have had the following effects:
o changes in the inert gas processing system have had the following effects:
: 1) Noble gases are now sent from           Increases dis-RAPS Noble Gas Storage Vessel           charge from RSB to CAPS, rather than being               HVAC bottled for disposal
1)
: 2) RAPS Cryogenic Charcoal Beds             Increases acti-have been deleted                       vity to CAPS, but CAPS charcoal beds supply hold-up time - little effect on offsite releases
Noble gases are now sent from Increases dis-RAPS Noble Gas Storage Vessel charge from RSB to CAPS, rather than being HVAC bottled for disposal 2)
: 3) Re-evaluation of CAPS                   Decrease in charcoal bed efficiency                 offsite releases
RAPS Cryogenic Charcoal Beds Increases acti-have been deleted vity to CAPS, but CAPS charcoal beds supply hold-up time - little effect on offsite releases 3)
: 4) RAPS moved inside of RCB                 No effect on normal operation Favorable effect with regard to accidents 0460.2R-3
Re-evaluation of CAPS Decrease in charcoal bed efficiency offsite releases 4)
: 5) Effluents from other                     slightly increases systems to CAPS added                     discharge from RSB to the total effluent                     HVAC (effluents from refueling system, fail d fuel monitoring
RAPS moved inside of RCB No effect on normal operation Favorable effect with regard to accidents 0460.2R-3
              ' \,
 
5)
Effluents from other slightly increases systems to CAPS added discharge from RSB to the total effluent HVAC (effluents from refueling d
fail fuel monitoring
: system,
' \\,
system, and maintenance system)
system, and maintenance system)
The net effect of these changes will be reflected in an upcoming ammendment to the ER.       These changes are also contained in response to Question 290.1R.
The net effect of these changes will be reflected in an upcoming ammendment to the ER.
These changes are also contained in response to Question 290.1R.
O 0460.2R-4}}
O 0460.2R-4}}

Latest revision as of 00:55, 20 December 2024

Forwards Responses to Questions 230.1R,230.2R,230.3R,290.1R, 320.9R,460.1R & 460.2R,per 811026 Request.Remaining Responses Will Be Provided on Schedule Per
ML20038C566
Person / Time
Site: Clinch River
Issue date: 11/27/1981
From: Copeland R
ENERGY, DEPT. OF, CLINCH RIVER BREEDER REACTOR PLANT
To: Check P
Office of Nuclear Reactor Regulation
References
PS:81:342, NUDOCS 8112110231
Download: ML20038C566 (63)
v • d • e


Text

,

3 Department of Energy 4

Clinch River Brec&r Reactor Plant Project OfikN RO. Box U 4

Oak Ridge, Tennessee 37830 I

Docket 'a. 50-537 November 27, 1981 W

p E

Ogg1 Mr. Paul S. Check, Director CRBR Program Office 6-4 0

-3 8/A Office of Nuclear Reactor Regulation C

- g'ttaa,

~

U. S. Nuclear Regulatory Commission D

7 Washingto% DC 20555

Dear Mr. Check:

[

RESPONSES TO NRC QUESTIONS This letter continues the responses to the questions provided to the -

CRBRP Project in your letter of October 26. Our letter dated Novem-ber 13,1981, provided fifteen responses to the thirty-one requests for additional information.

In that letter we provided a schedule for furnishing the remaining material. This letter provides responses to

]

the following questions:

230.lR, 230.2R, 230.3R 290.1R 320.9R 460.lR, 460.2R It is expected that the remaining responses will continue to be supplied i

on the schedule provided in our letter of November 13.

If you have any questions, please contact Mr. Henry Piper of my staff.

Sincerely, 5

R d

Copel d

PS:81:342 A ting ssist DirectM for ublic Safety

Enclosure:

As stated cc: Service List Standard Distribution DNp Licensing Distribution Si j 8112110231 811127 PDR ADOCK 05000537 l

A PDR

ITEM 230.1R The geology and seismology literature search needs to be updated.

The latest reference in the bibliography is 1974.

Considerable rusearch in geology and seismology has been done since that time (i.e.,

Appalachian COCORP Plan; recent studies of the Giles County Earthquake by Bollinger prestnted at the Earthquakes and Earthquake Engineering meeting in September, 1981 in Knoxville, Tenn.; TVA Appalachian Study; Studies related to the Charleston, S.C. 1886 earthquake; site investigations at TVA and other nuclear projects in the region; studies of other recent and historic Appalachian earthquakes; etc.)

Summary or Resconser The geologic and seismological literature search is being updated to include the years 1974-1981.

The various categories into which the recent literature has been presented are identified.

A discussion of'the findings of the seismological literature search is presented.

The most significant findings since 1974 has been the Giles County earthquake study by Professor G.

A.

Boltinger which tentatively identified a northeast striking basement f ault with ascribed maximum magnitude of Ms 7.0.

Using the procedure outlined in the report to estimate the design intensities at distances away f rom Giles County, the CRBRP site intensity is estimated to be MMVI. Since CRBRP is designed to MM VIII, the current design is more conservative than that arrived by using Bollinger's Report.

Independent studies by TVA reached similar conclusions for the Watts Bar plant located in the same tectonic province.

There is no evidence for other similar structures within the Southern Appalachian geologic province.

No other new knowledge exists which would imply the inadequacy of the site design maximum intensity (VIII).

Q230.1R-1

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w-

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Response

The geological and seismologic literature search is being updated to include the years 1974-1981.

The geologic literature search was designed to include references to recent work performed in the-general site area pertaining to possible recent faulting, location of faults not previously recognized in the area, new interpretations of age of thrust faulting, and physical l

properties of the Paleozoic rock units.

The seismologic literature search was designed to include references to recent work related to understanding the causes and distribution of earthquakes in the eastern United States, recent results of seismic monitoring in specific areas, and recent work defining the tectonic setting of the eastern United States.

The literature search consisted of six data bases (National Technical Information Service, Georef, Geoarchive, Dissertation Abstracts, Government Printing Office, and Engineering Index), a review of reference lists from available recent site-related publications, and a telephone survey of geoscientists familiar with recent work done in the area.

The search generated approximately 300 references, of which fewer than 200 appear to be directly applicable to the geologic or seismologic conditions in the area.

i The geologic publications generally fall into three categories:

1) the statigraphy of the Paleozoic rock units; 2) analyses of the COCORP seismic data; and 3) developments in the interpretation of the origin of the Southern Appalachians, including originc of and mechanisms for thrust faulting in the Valley and Ridge province.

The seismologic literature falls generally into five categories:

1) intraplate tectonics; 2) l Cretaceous and Cenozoic faulting; 3) Southern Appalachien tectonics; 4) research conducted in specific areas of the eastern United States; and 5) speculations concerning the causes Q230.1R-2 t

.i.

~

of eastern United States seismicity.

Based on the literature reviewed to date, it is concluded that tha specific design assumptions related to the derivation of the site seismicity for the CRBRP plant will not be impacted.

A brief summary with bibliography is included below.

Intraclate Tectonism Recent studies concerning the occurrence of earthquakes in the eastern United States suggest that seismicity is the result of i

reactivation of pre-existing zones of weakness by the present stress field.

A thorough discussion of this subject is given in (1).

The orientation and origin of the modern stress field in the central and eastern United States is discussed in (1) and (2).

Paultina Recent work has been published pertaining to Cretaceous and Cenozoic f aulting along the eastern United States continental margin (3,4,5,6,7,8).

It has been proposed that northeast trending reverse faults of Cretaceous and Cenozoic age are responsible for seismicity along the eastern seaboard (9,10,11).

Southern Accalachian Tectonic Structure Recent geologic and geophysical evidence is interpreted to indicate that much of the crystalline Southern Appalachians consist of allochthonous slabs thrust from the southeast along a decollement separating the crystalline rocks from essentially flat-lying sedimentary atrata(12,13),

The Bouguer gravity field of the region has been studied by several investigators.

Decomposition of the gravity field by wavelength filtering reveals a gradient extending from Maine to Alabama.

It has been proposed (14) that seismicity in the Q230.1R-3

'1

-,,,-n,--.

---.,w-,-

crystalline Appalachians is concentrated along this gradient and notably along its transverse offsets.

Regional magnetic and gravity data were correlated with seismicity, satellite photo-imagery and related geologic data (15).

Results suggest that the Precambrian crust underlying the folded Southern Appalachians has a complex structural pattern which can be divided into a series of distinct tectonic subdivisions.

Specific Areas of the Eastern United States Charleston. South Carolina:

During the past decade, much research has been directed toward identification of the structure that generated the 1886 Charleston earthquake.

In 1977, the U.S. Geological Survey published Professional Paper 1028, a collection of papers which summarizes preliminary findings.

A second professional paper devoted to the Charleston area is currently being prepared.

Focal depths for recent seismicity in the Charleston area suggest that the 1886 shock occurred in the upper crust (16).

Drilling in the Summerville area has shown that the Coastal Plain sediments are underlain by a basalt layer of Jurassic age (17), which overlies red-bed deposits of earlier Mesozoic age.

Further evidence of the graben-like deeper structure of the area comes from seismic refraction (18,19) magnetic (20), and gravity data (21).

Seismic reflection profiles show a reverse fault in the Summerville area (Cooke fault) with possible northeast strike, wnich moved during Cenozoic time (5).

As yet, the relationship of this fault to seismicity is unclear (16).

Fault plane solu-tions for the Charleston seismicity show northwest-striking or sub-horizontal nodal planes (22,16).

Q23 0.1R-4

i Recently, it has been proposed that movement along the Appalachian decollement inferred from COCORP reflection data (12,

13) may be the cause of the 1886 Charleston event (23).
However, whether or not the decollement extends under the Charleston area is as yet controversial (16),

In their update on information concerning the Charleston area requested for the St. Lucie SER(24), the U. S.G. S.

summarizes the current understanding of the area as follows:

"The problem regarding identification of specific tectonic structures capable of generating large earthquakes in the east is far from resolution.

Local structures near Charleston are incompletely known at present and the larger structural element, the decollement, is as yet hypothetical.

However, the concentra-tion of seismicity in the Charleston earthquake epicenter both before and af ter the August 31, 1886, event and the lack of post Miocene faulting in the Coastal Plain or any evidence for localizing large earthquakes indicate that the likelihood of a Charleston-sized event in other parts of the Coastal Plain and Piedmont is very low.

Consequently, earthquakes similar to the 1886 event should be considered as having the potential to occur in the vicinity of Charleston and seismic engineering parameters should be determined on that basis."

Giles County. Vircinia Important new information about seismicity in the Giles County, Virginia, area has recently been obtained from monitoring by a dense seismograph network (25, 26, 27).

The seismic moni-toring has revealed that focal depths in the Giles County area range from 5 km to almost 25 km.

Furthermore, the epicenters in. the

~

area reveal a northeast lineation in the seismicity pattern.

Focal depths indicate that activity is below the Paleozoic section, within the Precambrian basement rocks and middle crust.

The strike of the epicenter trend of N37oE departs from the Q230.lR-5

general trend of the Paleezoic Valley and Ridge axes in the area.

This suggests that the seismicity is caused by a fault zone associated with an earlier trend.

Recently, an estimate has been made of the maximum possible earthquake for the Giles County area by Prof. G. A. Bollinger (28).

This represents the most significant finding since 1974 related to regional seismology.

From the range of possible fault plane areas, values ranging from Ms 6.0 to Ms 7.0 were determined.

In addition, hypothetical isoscismal maps representing the intensity effects of the maximum sarthquake were prepared (28).

Attenuation from the Giles County area to the CRBRP site of the maximum hypothetical size earthquake would result in an event less than the design Intensity VIII and, consequently, will not impact the site seismicity.

I TVA addressed this question in a recent response to NRC on evaluating the impact of the Bollinger hypothesis on the seismic design of the Watts Bar plant located in the same tectonic province and similar conclusions were reached.

Sneculations concernina the Cause of Eastern United States Seismicity The causes of eastern United States earthquakes are not yet

{

understood.

It has been noted that intraplate seismicity shows an association with igneous intrusive rocks (l), and hypotheses concerning the role of intrusive bodies in concentrating stress have been proposed (29, 30).

It has been argued that both i

seismicity and igneous intrusives are fundamentally related to rif t zones, areas of pre-existing crustal weakness which may be reactivated by the modern stress field (1,16).

Q23 0. lR.-6

,__._.____,__,.,-..._m.,

i Two recently proposed hypotheses attempt to explain the origin of seismicity in the Piedmont and Coastal Plain provinces of the eastern United States.

Under one hypothesis (23), the 1886 Charleston event is attributed to gravitational backslip along the. Southern Appalachian decollement.

Another hypothesis (9,10,

11). proposes that seismicity along the Atlantic Coast is related to reactivated reverse movement on scattered northeast trending faults formed during Mesozoic rif ting.

However, these hypotheses are not viable in the folded Southern Appalachian area.

Recent data from Giles County, Virginia, suggest that a reactivated, northeast trending, high angle, dip slip fault formed in early Paleozoic time may be responsible for the seismicity in that area (25).

The list of geological references is not included but is in progress and should be complete in about one month.

These references will be forwarded to NRC when they become available.

f Q230.lR-7

f SEISMOLOGY REFERENCES 1)

Sykes, L.

R.,

Intraplate seismicity, reactivation of pre-i existing zones of weakness, alkaline magmatism, and other tectonism postdating continental fragmentation:

Reviews of Geophysics and Space Phyaics, v.16, p. 621-66 8,197 8.

2)' zoback, M. L., and Zoback, M. D., State of stress in the

-conterminous United States:

Journal of Geophysical Research, v. 85, p. 6113-6156.

3)

Mixon, R. B., and Newell, W.

L.,

Stafford f ault system:

structures documenting Cretaceous and Tertiary deformation along the Fall Line in northeastern Virginia:

Geology, v.

5, p. 437-440, 1977.

4)

Prowell, D. C., and O' Conner, B. J., Belair fault zone:

evidence of Tertiary fault displacement in eastern Georgia:,

Geology, v. 6, p. 6 82-684,197 8.

5)

Behrendt, J.

C.,

Hamilton, R. M., Ackermann, H. D., and Henry, V. J., Cenozoic f aulting in the vicinity of the Charleston, South Carolina, earthquake zone:

Geology, v. 9, no. 3, 1981.

6)

York, J.

E.,

and Oliver, J. B., Cretaceous and Cenozoic f aulting in eastern North America, Geological Society of America Bulletin, v. 87, p. 1105-1114, 1976.

7}

Mixon, R. B., and Newell, W. L., The f aulted Coastal Plain margin at Fredericksburg, Virginia:

R. B. Mixon and W. L.

Hewell, U.S. Geological Survey, Reston, Virginia, Guidebook for Tenth Annual Virginia Geology Field Conference, October 13-14, 197 8.

50 p., 197 8.

8)

Howard, K.

A.,

and others, Preliminary map of young faults in the United States as a guide to possible f ault activity:

U.S. Geological Survey Miscellaneous Field Studies Map MF-916, scale 1:5,000,000,1978.

9)

Wentworth, C.

M.,

and Mergner-Keefer, Marcia, Atlantic-coast reverse fault domain:

probable source of east-coast seismicity:

Geological Society of America Abstracts with Programs, v. 12, p. 547, 1980.

10)

Wentworth, C.

M.,

and Mergner-Keefer, Marcia, Regenerate faults of small Cenozoic offset as probable earthquake sources in the Southeastern United States:

U.S. Geological Survey Open-File Report 81-356, 1981.

Q230.lR-8

11)

Wentworth, C. M., and Mergner-Keef er, Marcia, Reverse fault-ing along the eastern seaboard cad the potential for large earthquakes in Proc. Earthquakes and earthquake engineering

- eastern United States, Sept. 14-16, 1981, Knoxville, Ten-nessee.

12)

Cook, F. A., Albaugh, D.

S.,

Brown, L.

D., Kaufman, S.,

Oliver, J.

E.,

and Hatcher, R.

D., Jr., Thin-skinned tec-tonics in the crystalline southern Appalachians; COCORP i

seismic-reflection profiling of the Blue Ridge and Piedmont:

Geology, v. 7., p. 563-567, 197 9.

13)

Harris, L.

D.,

and Bayer, K.

C.,

Sequential developments of the Appalachian orogen above a master decollement--A hypo-thesis:

Geology, v. 7, p. 56 8-572,1979.

14)

Kane, M.

F., Simpson, R. W.,

and Osberg, P.

H.,

New gravity evidence of crust-mantle structure and seismicity in the Appalachians (abs.):

Transactions of the American Geophy-sical Union, v. 62, no.17, p. 402,1981.

15)

Seay, W.

M.,

and Hopkins, R.

A.,

Southern Appalachian tectonic study:

ja Proc. Earthquakes and earthquake engi-neering - the eastern United States, Sept. 14-16, 1981, Knoxville, Tennessee.

16)

Hamilton, R. M., Geologic Origin of Eastern U.S. Seismicity, in Proc. Earthquakes and earthquake engineering - the easterri' United States, Sept. 14-16, 1981, Knoxville, Tennessee.

17)

Gohn, G.

S.,

Higgins, B. B., Smith, C. C., and Owens, J. P.,

Lithostratigraphy of the deep corehole (Clubhouse Cross-roads Corehole 1) near Charleston, South Carolina:

U.S.

Geological Survey Professional Paper 1028-E, p. 59-70, 1977.

l 18)

Talwani, P., A preliminary shallow crustal model between Columbia and Charleston, South Carolina, determined from quarry blast monitoring and other geophysical data:

U.S.

Geological Survey Professional Paper 1028-M, p.177-187, 1977.

19)

Ackermann, H.

D.,

Exploring the Charleston, South Carolina area with seismic refraction - a preliminary study:

U.S.

Geological Survey Professional Paper 1028-L, p.167-175, 1977.

20)

Phillips, J.

D.,

Daniels, D.

L.,

Zietz, I., and Popenoe, P.,

Geophysical studies of the Charlestora, South Caroina area -

onshore aeromagnetic map:

U.S. Geological Survey Miscellaneous Field Studies Map MF-1022-A, 1978.

Q230.lR-9

21)

Long, L.

T.,

and Champion, J. W., Jr., Bouguer gravity map of the Summerville-Charleston, South Carolina, epicentral zone and tectonic implications:

U.S. Geological Survey Professional Paper 1028-K, p.151-166,1977.

22)

Tarr, A.

C.,

Recent seismicity near Charleston, Scuth Carolina, and its relationship to the August 31, 1886 earthquake, in Rankin, D. W. (ed.) Studies Related to the Charleston, South Carolina carrbquake of 1886--a preliminary report:

U.S. Geological Survey Professional Paper 1028, p.

43-57, 1977.

23)

Armbruster, J. G., and Seeber, L., Intraplate seismicity in the northeastern United States and the Appalachian detachment:

la Proc. Earthquakes and earthquake engi-neering - the eastern United States, Sept. 14-16, 1981, Knoxville, Tennessee, i

24)

Official Communication, U.S. Department of Interior, Geo-logical Survey, to Dr. Robert E. Jackson, Division of Engi-neering, U.S. Nuclear Regulatory Commission, December 30, 1980.

25)

Bollinger, G.

A.,

and Wheeler, R. L., The Giles County, Virginia, seismogenic zone:

Geological Society of America Abstracts with Program, v.12, no. 7, p. 389,1980.

26)

Bollinger, G.

A.,

and Wheeler, R. L., The Giles County, Virginia, seismic network - Monitoring results, 1978-1980:

Earthquake Notes, v. Si, p. 14, 1980.

27)

Bollinger, G.

A.,

and Sibol, M.

S.,

Pault source models for Virginia earthquakes:

Earthquake Notes, v. 52, p. 61, 1981.

28)

Bollinger, G.

A., The Giles County, Virginia seismic zone -

i configuration and hazard assessment:

in Proc. Earthquakes and earthquake engineering - the eastern United States, Sept. 14-16, 1981, Knoxville, Tennessee.

29)

Kane, M.

F.,

Correlation of major eastern earthquake centers with mafic-ultramafic masses:

U.S. Geological Survey Pro-fessional Paper 1028-0, p. 199-204, 1977.

30)

McKeown, F. A., Hypothesis:

many earthquakes in the central and southeastern United States are causally related to mafic intrusive bodies:

U.S. Geological Survey Journal of Research v. 6, p. 41-50,1978.

Q230.lR-10 I

L i

ITEM 230.2R i

Based on the site investigation' data presented in the PSAR, the upper siltstone horizon of Unit A, within which the structure foundations are to be placeG, is relatively devoid of solution features below foundation grade.

However, it is "not obvious that the underlying limestone unit of the Chickamauga Group, Unit A and the much deeper Knox group do not contain significant cavities.

Determine the maximum size cavity, based on regional studies of karst features in these rock units, that could exist beneath the plant without being detected by the investigations performed.

Evaluate the capability of the foundation rock unit (Unit A, upper silt-stone) to bridge such cavities.

Summary of Resconse 1)

The potential for cavities and other karst features within the Unit A Limestone of the Chickamauga Group below the proposed base excavation level for the Nuclear Island is considered minimal.

It is believed that existing boring data, results of the test grouting program, and the planned bedrock verification program as addressed in the PSAR will be sufficient to confirm the homogeneity of the Unit A Limestone.

This verification program is scheduled to commence shortly and results will be provided upon completion.

2)

Research studies on the regional geology have shown that weathering in the Knox has been encountered to depths up to 200 feet.

Geotechnical investigations at the site have indicated a depth of weathering in the Knox not exceeding 100 feet.

Consequently, with a minimum depth of cover above the Knox of 450 feet, subsidence problems will not occur beneath the CRBRP site.

Q230.2R-1

Response

EVALUATION OF THE POTENTIAL CAVITIES IN THE KNOX FORMATION The size, shape, frequency, and extent at depth of karstic cavities depend upon 1) the extent of the weathering zone, 2) the presence or absence of impervious strata, and 3) local geologic structures (f aults).

In general, solution cavities, both ancient and recent, may be open, or completely filled with clastic material, or may be water-filled conduits.

Ancient, or paleo-karst cavities, are typically filled with recemented material and are as competent as the host rock around them.

Weathering within the Oak Ridge reservation is usually limited to i

the upper 100 feet of the surface.

The weathering of rock is most severe in the local limestone and dolomite units, leaving karstic terrain with clay and chert residuum for soil.

Below the weathering zone, the rock is generally jointed, but sound,.with joint strength increasing and open joint frequency sacreasing with depth.

The development of karst features at the surf ace and at depth in the rocks of the Knox Group is well documented.

Sinkholes and cavities are very frequent and have created many problems in the foundation of structures throughout the entire region.

The Knox Group has been described as a massive dolomite with a paleokarst upper unit.

This upper unit reflects an ancient karstic erosional surface which was subsequently beveled and covered by the Chickamauga Group.

According to local experts and available references, this paleokarst unit is now a very competent rock.

The ancient solution cavities, joints and caves, were fi1I~ed with residuum and recemented to the point that it is now difficult to detect the paleokarst unit from the overlying and underlying carbonate units.

These paleokarst features are well documented in the zinc district of northeastern Tennessee where they are always filled and cemented and do not represent a hazard.

Q230.2R-2

The only areas of karst with active solutioning exist within zones of active weathering, at or close to the contact between the Knox and the Chickamauga groups, and at depths ranging from 0 to 200 feet.

Tho size of the cavities varies from enlarged joints to several tens, and occasionally hundreds of feet in span, Geotechnical investigation at the site indicated a maximum depth of weathering not exceeding 100 feet.

To summarize our own experience and available data the following f

can be concluded:

1) Frequent and large open cavities (up to several hundred feet) occur within the Knox Group.

These solution features are exclusively developed at shallow depth (no' deeper than 200 feet) and in relation to the zone of weathering.

2) Many cavities appear to be located at or close to the unconformity existing between the Knox and Chickamauga Groups.

When this unconformity is at depth beneath the zone of weathering the karst features are ancient and filled, and the filling material is recemented.

[

In conclusion, it would appear Ebat subsidence is not a problem below the CRBRP site and in view of the shallow depth of weathering, it would not be necessary to conduct hypothetical analytical studies to determine the maximum size cavity related to depth and strength properties of overlying strata.

I i

Q230.2R-3

BIBLIOGRAPHY Franklin, and others, 1981.

Foundation Considerations in Siting of Nuclear Facilities in Karst Terrains and Other Areas Susceptible to Ground Collapse NUREG/CR-2062.

GSK, 1950. Application of Geology to Engineering Practices GSA Law Engineering Testing Company,1974, Clinch River Breeder Reactor Plant, Preliminary Safety Analysis Report, Section 2.5.

Proj ect Management Corporation,1975.

Clinch River Breeder Reactor Plant, Environmental Report, Section 2.4.

O l

l Q230.2R-4

ITEM 230.3R i

Furnish a map and summary discussion of the relationship beneath the Pleistocene / Pliocene high terrace deposits and geologic structures at the site, particularly the shear zone encountered in core borings.

RAFponse In response to this question we are providing Figure 2.5-5 from the PSAR which is the site geologic map.

Although terrace deposit studies have been used as a tool to locate and date faulting and other geologic structures, they were not used for this purpose during the CRBRP licensing investigation.

The age of geologic structures at and near the site (Copper Creek, White Oak Mountain, and other faults as well 4

as the shear zone within the Chickamauga Group) were determined by other lines of evidence.

At the time of the licensing study, no other such terrace study has been carried out in eastern Tennessee within the Valley and Ridge geologic province.

Since dhat time, one such study had been identified.

This study was perf ormed by P. A. Delcourt of the University of Tennessee (Knoxville) along the Little Tennessee River from Chilhowee Dam to the Tellico Dam (approximately 10 miles southeast of the CRBRP site).

Delcourt* has mapped nine different terrace deposits along the river and has radiocarbon age dates on the three youngest terraces.

  • Delcourt, P. A.,1981, Personal Communication to Law Engi-neering Testing Company.

Q23 0.3 R-1

The distribution and state of presentation of the terrace deposits along the Clinch River is not documented in the geologic literature; therefore, no assessment can be made concerning their i

relationship to the terrace deposits mapped by Delcourt along the Little Tennessee River or directly to the structures identified at the site.

However, during the geologic mapping at the site, the general distribution of terrace material was plotted (PSAR Figure 2.5-5).

Terrace deposits form a veneer over portions of the site.

This material is high-level alluvium deposited by the Clinch River when stream levels were much higher than at the present.

Such deposits are generally regarded as Pleistocene to Pliocene in age.

The terrace deposits consist mainly of orange and red silty clay with thin layers of rounded quartz, chart, and quartzite gravel.

A limited number of borings have penetrated the terrace deposits extending to depths ranging from 8 to 19.5 feet below the ground surface.

For a study to be conducted on the terrace deposits, it would first be necessary to establish whether sufficient material exists in the near vicinity of the CRBRP site to permit developing a correlation with geologic structures at the site including the shear zone encountered in the Chickamauga Group.

Detailed surf ace mapping and surveying in conjunction with subsurf ace mapping (trenching with a backhoe) would be required.

Correlation of individual terraces would have to be done by age dating (radiocarbon or palynology), comparison of lithologic composition of the terraces, or possibly by heavy mineral analyses of terrace material.

Plotting the distribution of the terraces on longitudinal profiles would allow for detection of offsets in the terraces on the regional scale, while smaller scale offsets would have to be recognized in the field, generally from the trench study.

It is considered that a program of work of the nature described above is not warranted for the CRBRP site because, as outlined in the PSAR, other lines of evidence were sufficient to conclude Q230.3R-2

o 8

that all structural elements including the shear zone are ancient and are not considered capable.

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Amend. 59 Dec. 1980 2.5-94

I ITEM 290.1R Provide a succinct summary and discussion in table form, by ER section, of differences between currently projected station design and environmental effects (including those that would degrade, and those that would enhance environ-mental conditions) and the effects discussed in the environ-mental reports submitted in 1975, Amendments 1 through 7.

l Summary of Response:

The changes to CRBRP design which have occurred since 1977 and the expected environmental effects of these changes are summarized succinctly by ER section in the attached table.

Most of the ER sections have already been modified to reflect the design changes and their environmental effects.

The sections that are yet to be modified in future amendments to the ER are highlighted in boxes in the table and for your convenience are listed below.,

ER Summary of Change (s) to be Section Reflected in Future ER Amendments 1.0 Heterogeneous core replaces homogeneous core arrangement.

This section will also address the supplement to the LMFBR Program Final Environmental Statement.

2.2 Inclusion of the most recent demographic data available.

3.5 Numerous refinements in the plant systems designs that result in changes to the effluent from the plant.

4.1.2.1 Construction water consumption estimates have been increased.

Q290.lR-1

r-5.2 Changes to radiological source term and pathway analysis.

5.3 Changes to the radiological source term, pathway and population data.

5.4.3 Instead of being directly discharged to the Clinch River via catch basins, storm water collected by the roof and yard drains is sent via the storm drainage system to the impounding ponds for settlement and ultimate discharge to the river.

5.8.1 Increased total acreage commitment.

6.1.4.2 Inclusion of most recent demographic data available.

Chapter 7 X/Q's based on a complete on-site meteorology data base have been provided; changes to the plant design and analysis methods which result in modified source terms require updated dose calculations.

Chapter 8 Revised construction manpower requirements, 1980 census and other recent demographics data.

Chapter 9 A supplement to the LMFBR Program Final Environmental Statement will be issued; responses will be provided for recent NRC questions.

Q290.1R-2

CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 1 ER SECTION REVISED ITEN DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT l

1.0 TO BE PROVIDED Heterogeneous core replaces homogeneous core arrangement (See Section 3.8). This Section will also address the supplement to the LMFBR Program Final Environmental Statement.

2.1 2.1-1 thru 2.1-10 Plant Construction site acreage increased. Plant See Section 4.0 arrangements updated. Five impounding ponds were identified and located on Figure 2.1-3.

2.2 TO BE PROVIDED Evaluation of demographic changes in process. Changes will be provided in a future amendment.

2.3 No change.

2.4 2.4-15 thru Geology Changed to provide data for 24 additional Environmentally inconsequential.

2.4.22 boreholes, taken from September 1976 to June 1977.

2.5 t

2.5.1 2.5.1 thru 2.5-10 River Updated river levels, flows, temperatures, Environmentally inconsequential.

etc.

2.5.2 j

2.5.2.1 No change.

2.5.2.2 No change.

i 2.5.2.3 No change.

}

2.5.2.4 2.5-18 Ground-Established piezometric gradient.

Environmentally inconsequential.

water l

1 2.5.2.5 No change.

2.5.2.6 No change.

2.5.2.7 No change.

i 2.6 2.6-1 thru Neteor-Updated to include data accumulated Environmentally inconsequential.

2.6-99 ology using permanent meteorological tower.

i I

m

CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 1 ER J

SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT I

mm, 1.0 TO BE PROVIDED Heterogeneous core replaces homogeneous core arrangement (See Section 3.8). This Section will also address the supplement to the LMFBR Program Final Environmental Statement.

3.1 2.1-1 thra 2.1-10 Plant Construction site acreage increased. Plant see Section 4.0 arrangements updated. Five impoundi.79 pnds were identified and located on Figure 2.1-3.

2.3 TO BE PROVIDED Evaluation of demographic changes in process. Changes will be provided in a future amendment.

3.3 No change.

3.4 2.4-15 thru Geology Changed to provide data for 24 additional Environmentally inconsequential.

2.4.22 boreholes, taken from September 1976 to June 1977.

3.5 3.5.1 2.5.1 thru 2.5-10 River Updated Ilver levels, flows, tempe r atures, Environmentally inconsequential.

etc.

3.5.2 3.5.2.1 No change.

2.5.2.2 No change.

3.5.2.3 Fo change.

3.5.2.4 2.5-18 Ground-Established piesometric gradient.

Environmentally inconsequential, water 2.5.2.5 No change.

l 1

2.5.2.6 No change.

2.5.2.7 No change.

2.6 2.6-1 thru Meteor-Updated to include data accumulated Environmentally inconsequential, j

J 2.6-99 ology using permanent meteorological tower.

j l

l

CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 2 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONNENTAL EFFECT l

I 2.7 2.7.1 1

i 2.7.1.1 2.7-la Forest Incorporates ORNL forest management No change in estimated environmental Nanage-activities from 1976 through 1980.

effects for CRBRP. Nitigation measures for Southern Pine Beetle and Pitch Canker I

infestations.

I 2.7.1.2 No change.

I 2.7.1.3 2.7-7 thru Flora Update vegetation inventory reporting.

Environmentally inconsequential.

2.7-9 2.7-24, -37 Flora Correct pine designation.

Environmentally inconsequential.

2.7-381, -38m Flora Revise category designation f rom Environmentally inconsequential.

" threatened" to " rare" to reflect current terminology.

2.7.1.4 2.7-380 thru Fauna Update wildlife occurrence data.

Environmentally inconsequential.

2.7-38t l

2.7-38ee Insects Update reporting concerning insect Environmentally inconsequential.

pests.

2.7-38ff Fauna Revised to include possibility of Occurrence on CRBRP site not confirmed.

l eastern cougar occurrence on Oak Also, cougar home range is sufficiently Ridge Reservation.

extensive to absorb effect or CRBRP installation. Environmentally inconsequential.

2.7-3899

' Avifauna Adds mention of osprey nast occurrence Osprey nesting at CRBRP site has not been at Watts Bar Lake.

observed. Environmentally i

inconsequential.

2.7.1.5 No change..

)

2.7.1.6 2.7-38tt Avifauna Update classification of American Occurrence of nesting at site has not osprey.'

g been observed.

i c

Surveys Report on 1980 reconnaissance Environmentally inconsequential.

2.7.1.7 2.7-3 8ww j

j surveys.

f I

ii 2.7.2 1

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2.7.2.1 T

l No change.

- s I

n 2.7.2.2 No change.

=

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CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 3 y

s.

SECTION REVISED v_,

g ITEN DESCRIPTION GP CHANGE ENVIRONNENTAL EFFECT k

2.7.2.3 No change.,

2.7.2.4' 2.7-87g Fish Report of occurrences of.the blue Occurrence not reported near Site.

sucker in Hatts Bar Lake. Blue Environmentally inconsequential, sucker is identified as a threatened species.

2.7.2.5 2.7-87h Aquatic Report on 1980 reconnaissance surveys.

Stocking activities have resulted in

-871 Surveys reported increases in gametish. No change in estimated environmental effects due to CRBRP.

2.8 2.8-1 thru Back-Complete update reflecting latest Data better characterizes the actual 2.8-109 ground ORNL, TVA and similar organization site and the surrounding areas.

Radia-studies and scientific papers.

Environmentally inconsequential.

tion s

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9

CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 4 ER KECTION REVISED ITEN DESCRIPTION OF CHANGE ENVIROWNENTAL EFFSCT 3.0 3.1 3.1-1 Esternal A five foot high animal fence was added Preclude small animals from plant site and Appear-at a distance of 33 feet from the and restrict them to more natural ance security fence.

environs. Environmentally inconsequential.

i i

3.1.1 3.1-2 Plant Gatehouse, circulating water pump house Environmentally inconsequential.

I Bldg. &

and fire protection pump house were i

Facili-identified. The switch yard relay house ties was added.

The configuration and location of the Environmentally inconsegnential.

emergency cooling tower structure were revi sed.

3.1.2 3.1.4 Plant Five foot high animal fence added.

Environmentally inconsequential.

l Site 3.1.3 3.1-4 Other The size of paved parking area was Environmentally incoceequential.

Facili-reduced for accommodation of 155 cars ties instead of 250 before.

3.2 3.2.1 No change.

3.2.2 3.2-3 Core Replaced homogeneous core with hetero-Net change judged to be insignificant.

geneous arrangementresulting in eliminating one fuel enrichment zone (was 2 now 1), reducing number of fuel assemblies from 198 to 156, reducing number of radial blanket assen-blies from 150 to 132, adding 82 inner blanket assemblies, and increasing Pu en-richment in fuel assemblies from 18.7-32%

to 32-334.

3.2.3 No change.

3.3 3.3.1 3.3-1 overall Average annual consumptive water use Environmentally inconsequential.

Plant figures were revised to be consistent with those in Tables 3.3-1, 3.3-2 and 3.3-3.

3.3.2 3.3-2 Cooling Flowrate to cooling tower from condenser Slight increare la plume si-se will not Tower increased from 209,200 gym to 212,200 gpa.

produce,signficant environmental impact.

,3.3.3 3.3-2 Process Added makeup water treatment system Environmentally inconsequential.

Water Treatment System

^

i;

CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 5 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT l

3.3.4 3.3-3 Waste All process waste water including floor Results in higher quality of water g

Water drains, go to Waste Water Disposal Systsa discharged.

Disposal instead of being routed to either cooling System tower basin or neutralisation and settling facilities.

3.3.5 3.3-3 Radwaste Updated description.

See Section 3.5.

Systems 3.3.6 3.3-4 Potable Potable water is supplied by DOE's Bear Environmentally inconsequential.

Water Creek Road Filtration Plant instead of Sources the Nake-up Water Treatment System.

Tcble 3.3-5 Plant Increase in plant make-up flow rate Environmentally inconsequential.

3.3-1 Flow-from 5835 gym to 6145 gym.

rates During Increase in cooling tower evaporation Environmentally inconsequential.

Maximum rate from 3475 gpa to 3623 gpe.

Power Increase.in cooling. tower drift rate Environmentally inconsequential.

f from 105 gpa to 106 gpe.

1 Increase in cooling tower blowdown rate Environmentally inconsequential.

l from 2210 gpa to 2306 gym.

p Decrease in Process Waste Treatment Environmentally inconsequential.

flow rate from 125 gpa to 110 gpe.

Waste Water Disposal System Flowrate Environmentally inconsequential.

[

designed at 100 gpe.

Increase in plant discharge rate tros Environmentally inconsequential.

2,251 gpe to 2,411 gpe.

Increase in total consumptive use of Environmentally inconsequential, river water from 3,584 gym to 3,733 gpe.

O e

1

i CRBRP ENVIROMNECTAL REPORT REVIEW PAGE 6 1

ER I

SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT l

l l

Table 3.3-6 Plant Increase in Plant Make-up Flowrate Environmentally inconsequential, g

' 3-2 Flow-from 2,361 gpa to 2,527 gpe.

rates 1

During Increase in cooling tower evaporation Environmentally inconsequential.

Minimum rate from 1,390 gym to 1,450 gym.

Power Increase in cooling tower blowdown rate Environmentally inconsequential, j

from 884 gym to 925 gym.

l Decrease in process water treatment flow-Environmentally inconsequential.

i rate from 125 gpa to 110 gym.

waste Water Disposal System flowrate Environmentally inconsequential.

designed at 100 gps.

Increase in plant discharge rate from EnvironmentC ly inconsequential.

925 gym to 1,030 gpe.

i I

Increase in total consumption use of Environmentally inconsequential.

river water from 1,436 gpa to 1,496 gym.

Trble 3.3-7 Plant Increase in plant makeup flowrate from Environmentally inconsequential.

3.3-3 Flow-625 gym to 715 gym.

rates During Increase in cooling tower blowdown Environmentally inconsequential.

Tem-flowrate from 221 gym to 231 gym.

porary shutdown Increase in cooling tower evaporation Environmentally inconsequential, rate from 348 gpa to 363 gym.

Decrease in process water treatment Environmentally inconsequential.

flowrate from 125 gpa to 110 gym.

t Waste Water Disposal System flowrate Environmentally inconsequential.

designed as 100 gym.

Increase in plant discharge flowrate Environmentally l'nconsequential.

from 262 gym to 336 gym.

Increase in total rnneurotive use Environmentally inco.wsquential.

of river water fs9e 363 gp to 378.

Table 3.3-8 Plant Seasonal Flowrates in Table have been Environmentally inconsequential.

3.3-4 Water adjusted to reflect present design.

Usage Seasonal Variation O

nae e

w h

l 12.?.RP ENVIRONPENTAL REPORT REVIEW PAGE 7 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE IXIIRONNENTAL EFFECT l

3.4.1 3.4-1 Woling Updated Makeup water addition to 6035 gpa.

Environmentally inconsequential.

hver 3.4.2 3.4-3 River Design flowrate for river water pumps Environmentally inconsequential.

i j

Water decreased from 10,000 gpm each to 9,000 gpm Pumps each.

3.4.3 No change.

T;ble 3.4-5 Heat Heat rejected from a cooling tower Environmentally inconsequential.

3.4-1 Dissipa-increased f rom 2.172 x 109 B1U/HR to tion 2.256 x 109 BTU /HR.

Design Parameters

& Conditions Trblo 3.4-6 Component Updated Design Parameters.

Environmentally inconsequential.

3.4-2 Descrip-tions T;ble 3.4-8 Cooling Average monthly cooling tower blow-Environmentally inconsequential.

3.4-4 Tower down temperatures increased slightly.

Blowdown Temperature 3.5 (ALL CHANGES TO SECTION 3.5 THAT ARE DESCRIBED BELOW WILL BE PROVIDED IN A FUTURE AMENDMENT TO THE ER.)

3. 5.1 ~

No change.

3.5.1.1 No change.

a e'

3.5.1.2 3.5-3 Filter A filter deleted from the liquid Environmentally inconsequential.

radwaste system.

3.5.2 I

3.5.2.1 3.5-7 Noble The 39At and 41Ar produced by direct The additional Argon from thic source is Gases activation of 38Ar and 40Ar is now negligible and the environmental impact included in the radioactive source terms is considered insignificant.

used for design work.

3.5.2.2 3.5-8 Treat-Design has been changed so that 85g from The site boundary beta skin dose is ment RAPS is no longer bottled but is pr5 cessed increased by approximately a factor of 2, and thru CAPS and released to H6V.

buttheyKtential for accidental exposure Release due to atorage and shippin is System removed. fhenetchangeinenvfronmental effects is judged to be insignificant.

S en*

l

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6

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CR3RP ENVIRONMENTAL REPORT REVIEW PAGE 8 i

1 T

SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL BFFECT l

}

Previously all leakages of cover gas or The site boundary beta and gamma doses are recycled cover gas were processed through increased; a slightly adverse effect. The CAPS.

Now most of the cells containing beta dose increased W approximately 1.5, 2

components which could leak cover gas vent gamma dose by approximately 3.

I to B&V.

l 3.5.2.3 3.5-9, 10 Tritium The tritium removal unit has been Environmentally inconsequential.

4 Removal redesigned.

j System 3.5.2.4 3.5-11 Head The reactor cover gas leakage rate The site boundary beta and gn===

doses 1

Seals was reduced from 0.012 SCC per minute are decreased; a slightly favorable

{

to 0.0044 SCC per minute.

environmental effect.

The diffusion of Tritium through The additional radioactivity contributed J

piping walla into PRTS and auxiliary by the small maount of Tritium diffusing i

Na cells has been added to design through piping walls is insignificant t

assumptions. Any significant amount compared to the radioactivity contained of Tritium'has been included in the in the cover gas which is assumed to leak j

current radiclogical source terms.

Into cells at the rate of I cc/ min. The impact is judged insignificant.

i 3.5.2.5 3.5-12 Release Ventilation exhaust rates at radiological Higher exhaust rates could potentially l

Points release points have been revised. Examples have more environmental impact due to are the release point in the SGB Inter-shorter hold-up of radionuclides.

mediate Bay which increased from 50,000 However, the doses resulting from SCFM to 64,000 SCFM and the exhaust point plant releases remain well below on top of the RCB which increased f rom guideline limits.

415,000 SCFM to 418,000 SCFM.

This change in temperature range will l

Ventilation exhaust temperature ranges have no impact. Density variations which at radiological release points have could release more or less radioactive increased. An example is a release material are accounted f or in the pre-point in the RSB that did have a range coding changes in exhaust rates.

j of 65or to 120oF and now ranges from i

550F to 1400F.

The CAPS Reactor Service Building R&V No environmental impact for normal Exhaust has been deleted. CAPS now release. Improved protection against exhausts through the RSB exhaust with release of above normal radioactivity safety-related exhaust radiation monitors.

from the plant due to off-normal con-ditions - a slightly favorable ef fect.

RAPS process components have been moved No environmental impact for normal f rom the RSB to the RCB.

operation. Improved protection against release of radioactivity from 4

the plant following RAPS accidents -

d a slightly favorable ef fect.

E e,

3

.L

j CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 9 ta j

SECTION REVIS ED ITEN DESCRIPTION OF CHANGE ENVIRONNENTAL EFFECT 3.5.2.6 3.5-13, -14 RAPS Revises gaseous release data based on No environmental impact f or normal J

relocated RAPS, updated burnup and release operation. Improved protection i

point datra, and most recent meterology, against release of radioactivity from i

the plant following RAPS accidents -

l a slightly favorable ef fecto i

3.5.2.7 3.5-14, -15 Balance Turbine generator building ventilation Environmentally inconsequential.

l of Plant exhaust location change f rom elevation 905'6" to 878'0", release rate decrease from 17,500 cfm to 8,000 cfe, exhaust i

flow velocity increase from 585 feet / min.

with a temperature range of 85 to 120or l

to 900 feet / min with a temperature range 1

from 550F to 1200?.

Plant Service Building ventilation exhaust 4

location changed f rom elevation 830'0" to 831'2".

Number of relaase points decreased from 2 to 1.

3.5.3 3.5-15 Solid Solid radwaste m ulpment is now Environaentally inconsequential.

(3.5.3.1 Radwaste is now identified as including 3.5.3.2)

System a cement filling station, a decanting station, Bquip-a concentrated waste collection tank, a drumming ment station, a filter handling machine and a compactor.

(See also Tables 3.5-10 and 3.5-11).

3.5.3.3 3.5-15 Noncom-There will be a total of 82 (instead Environmentally inconsequential.

patible of 202) 55 gallon drums per year used to store Solids the low activity, non-compactible solids of Rad-af ter treatment at tho salid radwaste waste system.

System 3.5.3.4 3.5-16 Radio-There are nov 2 drums of waste metallic Environmentally incensequential.

active sodium per year with an activity level Sodium of 20 C1/ drum instead of 6 drums / year with an activity level of 1.5 C1/ drum stored and/or processed on site.

3.5.3.5 3.5-17 Sodium The disposal of sodium bearing waste, Environmentally inconsequential.

Bearing which was not previously identified, Solids has been selected. Ma currently licensed off-site disposal facility will accept sodium bearing wastes, therefore, for off-site disposal of these wastes, the sodium will be removed. Where sodium removal is not practical, the waste will be stored on-site.

' ~

Activ-Individual primary cold trap contained Environmentally inconsequential.

ity actlyity of Tritium increased from 8.7 x 10J Ci to 1.85 x 5 Ci and activity of fission and corrosion products increase from 1 x 103 C1 to 1.41 x 105 C1.

The

CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 10 ER SECTION REVIS ED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFBCT contained activity will not be removed or released f rom the cold traps. The g

EVST cold trap contained activity increased from 6.7 x 10J C1.

The Tritium activity increased from 150 C1 to 180 C1.

Table 3.5-18, IALL Some of the assumptions that Table 3.5-1 Environmentally inconsequential.

(

3.5-1

-19 System had been based upon have changed:

I 1

1) Intermediate activity concentration for the first rinse computed assuming i

104 (instead of 404) of plated out activity and 100% of sodium activity adhering to the process components is i

dissolved in 100,000 (instead to 37,000) f l

gallons of water per year.

2) Processed components involve an average annual volume of 3,200 (instead of 14,700)

{

gallons.

Table 3.5-20 IALL Some of the assumptions that Table 3.5-2 Environmentally inconsequential.

3.5-2 thru -22 System had been based upon have changed:

1) Iodine Dr=104 included. Monitoring tank volume decreased f rom 2,500 gallons to 2,400 gallons.
2) Iodine DF=104 included.

Table 3.5-23, IALL Some of the assumptions that Table 3.5-3 Environmentally inconsequential.

3.5-3

-24 Systen had been based upon have changed:

lant Activity Liquid Maatt Anan=ntions:

1)

Iodine DF=104 and Tritium DP=1 included.

Intermediate Activity Liquid Magig Asanentions:

1.

Liquid waste discharged to the common plant discharger (instead of the coolant water blowdown str eam). Iodine DF-104 and Tritium DP=1 included.

Table 3.5-31 Expected values in teble have been changed to Environmentally inconsequential.

3.5-10

Weight, reflect current design.

Volume and Total estimated volume of solid radwaste 3

Activity generated decreased f rom 3,094 f t /yr to of Solid 2,865 f t3/yr.

Radwaste

CRBRP ENVEtONMENTAL REPO1T REVIEW PAGE 11 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT Total estimated weight of solid radwaste i

generated decreased from 2.6 x 105 lbs/yr.

j to 1.9 m 103 lbs/yr.

l Total estimated activity of solid radwaste generated decreased from 6.6 x 104 C1/yr. to 3.2 x 103 C1/yr.

i Tcble 3.5-32 Expected Expected containers per year of solidified Environmentally inconsequential, i

3.5-11 Solid liquid radwaste decreased from 170 to 135.

Radwaste Ship-Expected containers per year of filters and ments resins decreased from 120 to 30.

per year l

Figure 3.5-33 Basic Inlets of collecting tanks now include Environmentally inconsequential.

3.5-1 Plow filters.

Design

}

Figure 3.5-37 Basic Completely revised to reflect vendor Environmentally inconsequential.

1 3.5-5 Flow design.

Design 4

j 3.6 No change.

3.6.1 No change.

3.6.2 3.6-3 Sodium Capability of injecting sodium hypo-Environmentally inconsequential.

l Bypo-chlorite into cooling tower basin, chlorite on a continuous or intermittent basis.

l Injection i

j 3.6.3 3.6-4 Demin-Delete limits on demineralizer chemicals.

Environmentally inconsequential.

i eralizer 3.6.4 3.6-5 Sewage Chlorine limits set to meet NPDES permit Environmentally inconsequential.

4 Disposal limits.

Figure 3.6-7 Incorporate changes as described in text.

Environmentally inconsequential.

3.6-1 3.7 No change.

3.7.1 3.7-1 Sanitary Addition of pretreatment and extended Environmentally inconsequential.

Sewage aeration of activated sludge. Compares System ef fluent concentrations to NPDES permit limits (Table 3.7-1).

3.7.2 No change.

r e

O

=

..m

CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 12 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONNE1TAL EFFBCT 3.8 3.8.1.1 3.8-1, -2 Core Replaced homogeneous core arrangement with Decreases the haavy metal commitment Design heterogeneous core arrangement resulting (U or U + Pu) in the axial blankets in reducing the number of fuel assemblies and core from 5.4 NT to 4.2 NT and from 198 to 156, increasing the Pu enrich-from 6.5 NT to 5.2 NT, respectively.

ment from 18.7 to 324 fissile to 33.2%

Environmentally inconsequential.

total.

Deleted option to noe natural uranium Environmentally inconsequential.

as alternate material to depleted uranium as feed material for fuel pellets.

Revised refueling scheme from replacing Average yearly shipments of fresh approximately one-third annually to fuel would therefore increase from batch replacement of all the fuel and about 33 to 42.

Environmentally inner blanket acsemblies at two year inconsequential.

intervals with mid-interval replacement of 6 inner blankets with fresh fuel g

assemblies.

3.8.1.2 3.8-2 Core Replaced homogeneous core arrangement Increases the have metal (U) commitment Design with heterogeneola core arrangement from 16.4 NT to 21.6 NT.

Environmentally resulting in increasing the total number inconsequential.

of blanket assemblies from 150 (radial) to 214 (82 inner and 132 radial).

I Revised dimensional parameters of blanket Environmentally inconsequential.

rods (outside diameter desceased from 0.520 in, to 0.506 in.) and assenoly weight increased (from 525 lbs. to 536 lbs.).

Revised refueling scheme from annual hverage yearly shipments fresh blanket refueling to batch refueling at two-assemblies will therefore increase from i

year intervals.

13 to 35.

Environmentally inconsequential.

i 1

Figure 3.8.1 3.8-10 Reactor Revised to ahow heterogeneous core layout.

Environmentally inconsequential.

i Figure 3.8.2 3.8-11 Fuel Dimensions removed.

Environmentally inconsequential.

l 3.8.2.1 3.8-3, -4 Core Replaced homogeneous core arrangement Shipping schedule for speat fuel increases Design with heterogeneous core arrangement from 8 to 12 shipments per year to one and revised refueling scheme from annual shipment per week. Change judged to refueling to betch refueling at two year to be slightly adverse.

Intervals resulting in increasing the average number of fuel assemblies discharged yearly from 66 to 81, decreasing the fuel assembly burnup from l

i i

CR2RP ENVIRONMENTAL REPORT REVIEW PAGE 13 ER l

SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONIERTAL BFFBCT 200,000 MWD / Ton average to 80,000 NWD/ Ton average, and the peak burnup to 110,000 i

MWD / Ton, decreasing the average burnup in the axial blankets f rom 4,000 MWD / Ton to 2,200 MWD / Ton, and reducing the amount of bred fissile Pu from I kg/assy. to 0.3 to 0.4 kg/assy.

Revised weight and dimensions of spent fuel Environmentally inconsequential.

shipping cask.

3.8.2.2 3.8-4, -5 Core Replaced homogeneous core arrangement with Increases the number of spent blanket Design heterogeneous core arrangement and revised assembly shipments f rom 3 to 6-7 per year.

refueling scheme from annual to batch Change judged to be slightly adverse, resulting in increasing the number of blanket assemblies discharged f rom the plant per year f rom 25 to 70, increasing the burnup per assesbly from 5,700 MWD / Ton

. o 8,000 MWD / Ton, increasing the average and M ak heat generation from 1 kw average (radlal) to 2.6 kw (inner) and 1.6 kw (radial) and f rom 7 kw peak (radial) to 19.7 kw (inner) and 12 kw (radial).

3.8.3 3.8.3.1 3.8-5 thru Core Replacement of homogeneous core arrangement Change judged to be slightly favce-ble.

3.8-7 Design with heterogeneous core arrangement results in reducing the number of primary control assemblies from 15 to 9 and

. increasing the number of secondary con ~.tol assemblies from 4 to 6.

If lifetime considerations permit, control Change judged to be slightly favorable, rods could remain in the reactor for two cycles, also the driveline lifetime has been increased from 10 to 15 years.

Revised configuration of radial shield Environmentally inconsequential.

assembly from stacked hexagonal plates to closely packed rods in a her duct and decreased assembly weight from 750 to 360 lbs.

Because of the change to the heterogeneous This greatly reduces the number of ship-core arrangement the lifetime of the first ments of irradiated shield assemblies, row of shield assemblies has increased Change judged to be favorable.

from 3 to 10-to-15 years, part of the second row lifetime has increased from 6-to-12 to 10-to-25 years, and the third mf

CRIRP ENVIRC~ MENTAL REPORT REVIEW PAGE 14 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFBCT

,l and fourth rows are not espected to require replacement during plant lifetime. The number of first row assemblies has been reduced from 72 to 54.

85 r is no The site boundary beta skin dose is 3.8.3.2 3.8-8 RAPS Design has been changed so that K

longee bottled but is processed through increased by approximately a factor of 2, CAPS and released to H&V.

but the M tential for accidental exposure due to 85 r storage and shipping is K

removed the net change in environmental effects is judged to be insignificant.

3.8-8, -9 Primary The tritium levels were updated f rom 1.8 Material will not be released so the Cold x 104 Ci to 1.85 x 105 Ci and the fission changes are judges to be environ-Trap products and corrosion products increased mentally inconsequential.

from 1 x 103 C1 to 1.41 x 105 C1.

Cold traps are to be stored on site since no currently licensed disposal site will j

accept sodium-bearing wastes.

i 3.9 I

3.9-1 No change.

3.9-2 No change.

3.9-3 No change.

3.9-4 3.9-4 Flora Update to account for ORNL forest No change in environmental effects due management activities since 1976.

to CRBRP.

(Table 3.9-1) 3.9-5 No change, d

3.9-6 No change.

3.9-7 No change.

3.9-8 No change.

3.9-9 No change.

w e

6 w

9 e

w

CRGRP ENVIRONNENTAL REPORT REVIEW PAGE 15 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONIENTAL BFFBCT 4.1 4.1-1, -2 Site Deletion of borrow area, increase of Environmentally inconsequential.

Prep.

site temporary acreage to 260 acres and from 195 acres required for plant Plant construction, 37 acres inside security Cons-barrier, quarry increase from 25 acres to truc-45 acres, provide crusher fecility at tion quarry (Table 4.1-1, Figure $.1-1).

4.1.1 4.1.1.1 4.1-2 Clearing Choice to use open burning during site Change judged to have a slight negative clearing.

environmental effect.

4.1-3, -4 Quarry Excavation depths increased.

Change judged to be slightly favorable as Eliminate consideration of borrow pit.

quarry location will be preferable to borrow pit's.

Onsite availability of material will reduce offsite hauling requicements.

4.1.1.2 No change.

4.1.1.3 4.1-5 Access Nodify Barge Unionding Facility.

Change judged to be slightly favorable.

Facility Redesipp minimises dredging.

4.1.1.4 No change.

4.1.1.5 No change.

4.1.1.6 4.1-7 thru Site Update terrestrial ecological effects Change judged to have slightly negative 4.1-8b Extent of site clearing and construction.

environmental effect due to increased (Table 4.2-1 and Table 4.1-3) aread.

Include ORNL forest management plan.

No change to estimated environmental effects due to CRBRP.

Updates impacts on wildlife.

No change to estimated envirc>sental effects due to CRBRP.

4.1.1.7 4.1-11 Human Eliminates borrow area.

Reduces construc-Change judged to be slightly favorables Activ-tion activ.ities near cemetery.

borrow area was in vicinity of Jensley i

family cemetery.

l 4.1.1.8 4.1-12 Niti-Updates redressability

-Environmentally loconsequential.

gation in light of design changes (i.e, choice of quarry rather Chan borrow pit, addition of demolition fill area, etc.)

i

CRBRP ENVIRONMEUfAL REPORT REVIEW PAGE 16 ER GECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT 4.1.2 4.1.2.1 4.1-13 water Construction water consumption estimates Environmentally inconsequential.

Use have been increased and vill be provided Additional water consumption still is only by ER amendment in the near future.

a very small fraction of the available Clinch River flow.

4.1.2.2 No change.

4.1.2.3 4.1-15 Barge Relocation and redesign will reduce Change judged to be slightly favorable.

Unload-dredging.

ing Facility 4.2 No change.

Table 4.2-9 Trans-Transmission corridor acreages updated.

Environmentally inconsequential.

4.2-1 mission Corridor 4.3 4.3-1 thru Re-Updated to account for revised affected Net effect of all changes is judged to be

4. 3-3 sources areas, and addition of quarry.

environmentally inconsequential.

h 4

0

CRBRP ENVIRONNENTAL REPORT REVIEW PAGE 17 ER SECTION REVISED ITEN DESCRIPTION OF CHANGE ENVIRONMENTAL BFFECT 5.1 No change.'

5.1.1 No change.

5.1.1.1 5.1-3, -4 Cooling Updated to reflect effects of cooling Change demonstrates that latest design System system redesign.

Produces effects that are enveloped by previous (approved) designs.

5.1.1.2 5.1-5 "No Updated plume configurations to reflect Change falls within effects that are Flow" effects described in 5.1.1.1.

enveloped by previous approvals.

Plumes 5.1.2 5.1-6, -7 Thermal Revised to include reference to NPDES NPDES requirements exert positive controls Dis-Permit requirements on ef fluent quality.

i.

Charge S tandar ds 5.1.3 No channe.

5.1.3.1 5.1-12 thru Fish Discusses recent studies of fish Environmentally inconsequential.

Habitat (striped bass and sauger) behavior in the Clinch River. Includes habitats, af gration and spawning.

5.1.3.2 No change.

5.1.3.3 No change.

5.1.3.4 No change.

5.1.3.5 No change.

5.1.4 No change.

5.1.5 5.1-22 Con-Update condenser water design flow rate.

Environmentally inconsequential.

denser Also updates Clinch River flow data.

Entrainment 5.1.6 No change.

5.1.7 No change, l

5.1.8 No change.

l 5.2 Radio-This section is being reviewed to determine logical the signficance of changes to radiological source Biota term and pathway to warrant re-analysis.

5.3 Radio-This section is being reviewed to determine the logical significance of changes to the readiologcal source Impact term, pathway and population data to warrant r e-analysis.

3

CRBRP ENVIRONMENTAL REPORT REVIEW PAGE IS ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVImosIENTAL EFFECT

,)

5.4 5.4-1 Effects Editorial change to clarify and explain Environmentally inconsequential, of Chem-that an acid feed system is provided.

g ical &

Its use would adjust pH for control of Biocide corrosion and scaling, and to assure that Dis-the blowdown is in compliance with the charges the Draf t NPDES permit limits.

Defined the limits of chlorine Environmentally inconsequential.

concentration.

5.4.1 5.4-2 Waste Adde discussion of changes to waste Environmentally inconsequential.

Water water disposal system that have been Disposal previously described.

5.4.1.1 5.4-4a coolant Total volume discharged increased ' lightly Environmentally inconsequential.

System with no changes in chemical concentrations.

Discharge 5.4.1.2 5.4-5 thru Discharge Changed per cent differential between Environmentally inconsequential.

5.4-8 Plume ambient and blowdown concentrations.

Striped Described bass response to chemical Environmentally inconsequential.

Bass plume.

Water Identifies elements not meeting drinking Environmentally. inconsequential.

Quality water standards at 64 isopleth during periods of extended no flow.

Included consideration of the more Environmentally inconsequential.

stringent of state or federal requirements.

(Tables 5.4-1, 5.4-2 and 5.4-5).

5.4.2 5.4-12

, Effects Includes discussion of trihalomethanes Environmentally inconsequential.

of Bio-(THM's) (Table 5.4-1) cide Dis-charges 5.4.3 5.4-12a Storm Instead of being directly discharged The incorpration of Obis system Watet to the Clinch River via catch basins, provides f urther assurance that the storm water collected by the roof and yard final effluent discharged to the drains is sent via the storm drainage river via the impounding pound is system to the impounding pounds for within applicable effluent standards, settlement and ultimate discharge to the The effect is judged to be environ-river. Change will be provided in a mentally favorable.

future amendment.

5.4.4 No change.

5,. 4,. 5 No change.

5.5 No change.

i CRORP ENVIRONMENTAL ' EPORT REVIEW PAGE 19 a

ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIROWNENTAL EFFBCT 5.5.1 5.5-1, -2 Effects Editorial change to clarify that a package Environmentally inconsequential.

from San-treatment plant will be used during the itary construction period. A slow sand filter Wastes unit will be installed following the CRBRP construction period to form a part of the permanent plant for the normal operation of the plant.

Third paragraph deleted since the des-Environmentally inconsequential.

cription of the treatment. plant is given 3

in Section 3.7.

Treated effluent discharges will be Environmentally inconsequential.

processed to meet the Draf t NPCES permit limits instead of "all State and Federal discharge regulations".

Discharges from cooling tower blowdown were Environmentally inconsequential.

revised to be consistent with Table 3.3-4.

5.5.2 No change.

5.6 No change.

5.7 No change.

5.8 No change.

5.8.1 5.8-1 Plant Total acreage committed updated.

Environmentally inconsequential.

Site Changec will be provided in a future amendment.

l 5.8.2 5.8-2 Water Water consumption opdated to reflect Environmentally inconsequential.

Resources latest estimates.

i e

e

CRBRP ENVIRONMENTAL REPORi REVIEW PAGE 20 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL RFFBCT

.l 5.8.3 5.8-2 thru Core Replaced homogeneous core arrangement change decreases the heavy metal 5.8-4 Design with heterogeneous core arrangement commitments in the fuel (U + Pu) resulting in reducing the number of from 6.5 MT to 5.2 NT, reduces the fuel enrichment zones from 2 to 1, stainless steel commitments in the increasing the Pu enrichment in the fuel from 26.3 MT to 20.7 MT.

The fuel from 18.7-to-27.1 to 33.24, reducing heavy metal commitment in the blanket the number of fuel assemblies from 198 to went from 21.7 MT (radial & axial) to 156. This change also increases the 25.8 NT (inner, radial & axial), and number of blanket assemblies from 150 increases the stainless steel commitment (radial) to.214 (inner and radial).

In the blankets from 17.3 MT to 27.6 MT.

Change judged to be environmentally inconsequential.

Revised Pu isotopic composition to be Environmentally inconsequential.

similar to FFTP grade instead of char-I acteristic of LWR discharge.

Revised refueling scheme from annual This results in increasing the total to batch which results in increasing the heavy metal commitments based on a once total number of fuel assemblies, required through fuel cycles from 20 NT Pu to 27 NT during plant life, from 2,300 to 2,427; Pu, from 210 MT U to 336 NT U and increasing the totti number of blanket from 410 MT stainless assemblies from 850 to 2,142.

steel to 600 NT.

If reprocessing is assumed, then the total net heavy metal commitment of uranium decreases from 17.7 MT to 14.3 MT and the not gain of bred plutonium decreases from 2.9 NT to 2.3 MT.

Change judged to be slightly adverse.

5.8.4 No changes.

5.9 5.9-1 Plant Permanent plant acreage is increased.

Environmentally inconsequential.

Site

~

a, e

d V'

W O

w

CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 21 ER SECTION REVISED ITEM DESCRIPTION CP CHANGE ENVIRONMENTAL EFFECT 6.0 No change.

6.1 6.1-1 Pre-con-Changed to indicate that program was Environmentally inconsequential.

struc-conducted.

tion Monitoring Program 6.1.1 6.1.1.1 6.1-1 thru Base-Completion of baseline aquatic monitoring Environmentally inconsequential.

6.1-24 line program description (results of baseline Monitor-program reported in Section 2.7, (Amendment ing VIII).

Program (41.1.2 6.1-25 thru Pre-con-Provides a summary description and con-Environmentally inconsequential.

6.1-28e struc-clusions of the pre-construction aquatic Change provides data base for deter-tion environmental monitoring.

mination of environmental ef fects due Aquatic to construction as monitored by the construction environmental monitor 1~ng program.

6.1.2 6.1-29 Ground-UNated to incorporate reference to Environmentally inconsequential.

water de pre-construction monitoring program (1976-1977).

6.1.2.1 6.1-29, -29a Pr e-con-Provides summary conclusions of the Environmentally inconsequential.

struc-pre-construction groundwater quality Changes provides data base f or the tion monitoring program.

construction monitoring Program.

Ground-water

. Quality 6.1.3 6.1-30 thru Meteor-Updates meteoroloaical descriMion to Environmentally inconsecuential.

6.1-33 ology incorporate description, inattunentation Permanent metebrological and data acquisition system for the on-facilities will be used during plant site permanent meteorological monitoring construction and operation for on-site stations.

meteorological analyses.

Environmentally inconsequential.

Deletes description of on-site temporary meteorological monitoring station.

6.1.4 6.1.4.1 6.1-35 th r u Geology Provides update of site geology invest-Environmentally inconsequential.

6.1-37 igation (results provided in Section 2.4).

'6.1.4.2 6.1-38, -39 Land Use. Evaluation of demographic changes in Environmentally inconsequential.

& Demo-process.

graphic Surveys

~

  1. L CRIRP ENVIRONMENTAL REPORT REVIEW yAag 22 0

ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIROllNENTAL EFFBCT d

6.1.4.3 6.1-39 thru Terres-Provides update discussion of baseline Environmentally inconsequential.

8 6.1-41 trial terrestrial monitoring program.

(Con-Ecology clusions provided in Section 2.7).

4 6.1-42 Construc-Provides reference to on-site construction Environmentally inconsequential.

tion environmental monitoring program.

Monitoring 8

6.1.5 No change.

6.1.5.1 6.1-42a thru Precon-Provides complete description and results Change is judged to be slightly favorabia, a

1 6.1-43 struc-of pre-construction radiological (river Provides basis for improved determination i

tion water, groundwater, sediment) monitoring of radiological disturbance av monitored during the construction radiological 8

l Radio-program.

logical monitoring program.

Monitoring i

6.2 No change, t

6.2.1 6.2.1.1 6.2-1 Chru Gaseous Updates plant gaseous effluent monitoring Change is judged to be slightly favorable.

6.2-2b Efflu-locations (32 locations from 13 locations.

System will provide f

ents 1 - steam generator building

- continuous monitors at those locations 9 - reactor containment buildings which could conceivably undergo e1 3 - reactor service building significant increase in detectable 1 - radwaste area Icvels 1 - plant service building

- periodic sampling for areas as t,

l 14 - turbine generator buildings necessary.

l 1

3 - steam generator buildings 6

PSB Liquid effluents go to liquid radwaste Environmentally inconsequential.

Liquid system for reprocessing.

4 Effluents i

6.2.1.2 6.2-3 thru Pre-or Provides current (atmospheric, terrestrial, Environmentally inconsequential.

I 6.2-10 peration-aquatic groundwater) radiological monitoring al Rad-programs for the pre-operational and iologi-operational phases, e

cal Monitoring t

6.2.2 No change.

6.2.3 No change, e

6.2.4 No change.

e,

  • ~6.2.5 No change.

6.'3 6.3-1 Other Deletes monitoring stations at TVA's Environmentally inconsequential.

Monitor-Kingston steam plant and Bull Run ing steam plant.

8-ProMrams

CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 23 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL BFFBCT 7.1

( ALL CHANGES 'IO SECTION 7.1 '1 HAT ARE DESCRIBED BELOW WILL BE PFDVIDED IN A FUTURE AMENDMENT 'ID 'tHE ER) 7.1.1 7.1.1.1 7.1-1 Meteor-Meterology contained in Section 2.6 as ology provided by Amendment IX will be used in the computations.

4 7.1.1.2 7.1-2 th r u Method-Methodology changes, as appropriate, will be 7.1-6 ology provided.

7.1.1.3 No change.

7.1.2 7.1.2.1 No change.

7.1.2.2 7.1-8, -9 Eteam The amount of tritiated water released The combined effect of these changes is to Drum to the environment is 353,000 lbs. Instead increase the site boundary whole body dose valve of 450,000 lbs.

from 1.77 ares to 5.50 mreas both are

( 2.1)

  • envronmentally inconsequential.

The tritium concentration has increased from.25 x 10-6 C1/g to.62 x 10-6 C1/g.

Conden-The tritium concentration in the Condensate The short-term downstream tritium concen-sate Storage Tank increased to.62 x 10-6 Ci/g tration in the Clinch River increased from Ik8x10-12 Storage from.25 x 10-6 C1/g.

C1/g to 2.89 x 10-12 cgfg al er de postulated leaks both are Tank Leak environmentally inconsequential.

(2.2) 7.1.2.3 7.1-10 thru RAPS RAPS components moved to RCB.

The environmental effects are judged to be 7.1-15 favorable. RAPS leakage is processed through the RCB HVAC.

Padwaste The tritium concentration in the The combined effect of these changes is to System storage tank water has increased to reduce the postulated spill cleanup time Failures

.62 x 10-6 C1/g from.25 x 10-6 Ci/g.

and increase the whole body dose at the j

(3.1) site boundary to 1.01 x 10-5 area from Storage tank cell parameters have 9.4 x 10-6 mrom,. but both are changed such as the floor area increase environmentally inconsequential.

I to 1,000 ft2 from 800 ft2 I

l Sump pump flow capacity increased to 50 gpa from 10 gpm.

  • Refer to accident number in Environmental Report.

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CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 24 ER SEMION REVIBED ITEM DESCRIPTION OF CHANGE ENVIROMIENTAL EFFECT l

Liquid Tritium concentration in storage tank water The combined effect of these changes is Radwaste has increased due to change in interface to increase the site boundary whole body is postulated accident to dose from p from 5.0 x 10-3 areas both are System diffusion coe[ficients. Concentration is Tank now.62 x 10 0 C1/g in SGS.

2.13 x 10-(3.2) environmentally inconsequential.

Spill cleanup time is reduced to 6.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> by using higher capacity sump pumps.

7.1.2.3.3 RAPS Accident redefined due to relocation of The environmental effects are judged to be Noble RAPS components.

favorable.

Gas Stor-age vessel Rupture (3.3) 7.1.2.3.4 Deleted due to deletion of equalization line.

Rupture of cover gas Equalization Line (3.4) 7.1.2.4 7.1-16a thru Sodium Analyses revised to update computations.

Environmentally inconsequential.

i 7 4-21 Fire Accidents (4.1)

(4.2) 7.1.2.5 7.1-22 thru Fuel The current plant design has a higher purge The net ef fect of the changes is to 7.1-24 Failures rate of the cover gas which has reduced the reduce the site boundary whole body (5.1) available Xenon and Krypton activity to dose to 8.4 x 10-5 area from 3.4 x 56,588 Ci from 65,816 C1.

10-4 areas both are environmentally inconsequential.

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CRBRP ENVIRONNENTAL REPORT REVIEW PAGE 25 ER SECTION REVISED ITEN DESCRIPTION OF CH ANGE ENVIROWNENTAL EFFBCT l

7.11-24 thru Steam A Levised DBL for the steam generator The net ef fect of the changes is to 7.1-27 Generator results in 465 lbs. of sodium mixing with increase the site Mundaky whol8 odmfen:se b

do to 8.3 x 10-2 mrem from

.1 x 1

-4 Tube with water instead of 337 lbs. of sodium.

Rupture The tritium concentration in SGS is now both are insignificant.

(5.2)

.62 x 10-6 C1/g and in the :ISTS is

.13 x 10-6 C1/g.

This change is judged to be adverse, since this could potentially Deleted the centfifugal separator from result in the release of more sodium-the Sodium-Water Reaction Pressure Relief water reaction particulates into the Subsystem (SWRPRS).

atmosphere.

The duration of the SWRPR venting to the atmosphere was increased from 15 to 28 seconds as a result of an updated TRANSWRAP No change to estimated environmental code analysis of this event. This more effects.

3 detailed analysis tracks the primary sodium t

which might leak into the intermediate sodium.

It considers the length of piping between Ohe IHX and the superheater inlet, and the reduced sodium flow during blowdown and predicts that no primary sodium will reach the superheater during l

this event for subsequent release to Uhe atmosphere.

I

=

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CRBRP ENVIRONMENTAL REPORT REVIEN PAGE 26 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFBCT 7.1.2.6 7.1-28 thru Spent Earliest scheduled time for fuel assembly The combined ef fect of the changes is to fra1.5x10gteboundarywholebgdydose 7.1-32 Fuel handling is increased to 8 days from 87 increase the s nres to 2.13 x 10-area Cladding hours.

4 Pallure both are environmentally inconsequential.

in the Revised ORIGEN isotope library was used EVTM to generate fission product inventories.

(6.1)

Spent The same changes that applied to Accident The net result of the changes is to Fuel 6.1 apply here.

increase the site boundary whole body Cladding dose for this postulated accident fron Failure 1.5 mrem to 2.1 mesa, both are environ-i in the EVTM mentally inconsequential.

(6.2)

Accident-Revised ORIGEN isotope library was used The combined ef fect of the changes to ally to generator fission product inventories increase the site boondary whole body Opening Revisions were based on newer calculational dose to 1.08 stem from.07 areas both a Floor schemes.

are environmentally inconsequential.

Valve (6.3) 7.1.2.7 7.1-33 Spent Isotope inventories were revised using The combined ef fect of the changes is to Fuel updated ORIGEN libraries. The ORIGEN decrease the site boundary whole body dose Cask changes were due to revisions in the to 2.8 x 10-4 meen from 9.3 x 10-3 mrems Drop library calculational schemes.

both are environmentally inconsequential.

(7.1)

The fuel has undergone an 80 day cooling period instead of 100 days.

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CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 21 l

ER l

SECTION REVIS ED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFECT 7.1.2.8 7.1-3 4 th r u Primary Primary sodium isotope inventory has The combined effect of the changes is to 7.1-43 Sodium changed due to revisions in the ORIGEN reduce the site boundary whole body dose Drain library calculational schemes.

from 9.7 x 10-4 rem to 8.4 x 10-5 rems Tank both are environmentally inconsequential.

Failure Cell 102 A dimensions have changed. For (8.1) example, the cell volume s 45,000 f t.*

and was 68,000 f t.3 The potential sodium spill volume has increased to 35,000 gallons from 32,000 gallons.

Primary The postulated sodium spill has been Tne combined ef fect of the changes is to coolant reduced to 135,000 lbs. from 193,000.

increase the site boundary whole body dose Sodium from 8.3 x 10-4 rem. to 1.25 x 10-2 rems b th Spill It was conservatively assumed that the are environmentally inconsequential.

(8.2) aerosol leaked to the RCB was vented directly to the environmental. Previously a leak rate of.1 volt / day at 10 psig. was assumed as the leak rate.

Ex-Con-The postulated spill has been reduced The net ef fect of the changes is to reduce tainment from 90,000 gal. to 45,000 gal, of sodium.

the site boundary whole body dose f rom Primary This is the result of a failure of one of 7.9 x 10-3 ren to 4.2 x 10-5 rems both are Coolant two storage vessele in the cell rather environmentally inconsequential.

Sodium two.

Spill (8.3)

The leak rate of aerosol was based on the cell design leak rate of.6 volt / day at 3.9 psig.

rather than 100 volt / day at 10 peig which was previously used.

Ex-Ves-Aerosol leakage to the RSB from the cell The net effect is to reduce the site sel Stor-was calculated based on a cell design boundary whole body dose from 2.1 x 10-4 age Tank leak rate of.36 volt / day at 12 psig.

arem to 4.3 x 10-4 meens both are Coolant rather Chan 100 volt / day at 10 psig.

environmentally inconsequential.

Rupture This approach will release less aerosol (8.4) into de environment.

Large The SGS tritium concentration has in-The combined effect is to increase the Steam creased to.62 x 10-6 C1/g from.25 site boundary whole body dose to 4.7 aren Line x 10-6 C1/g. This is the result of from 1.9 mress both are environmentally Break changes in diffusion coefficients across inconsequential.

(8.5) system interface boundaries.

The newer design basis results in 312,000 lbs.

of water being released from dhe PRV instead of 479,000 lbs.

The power relief vent period has been increased from 1.5 to 5.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />.

CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 28 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIROH9 ENTAL BFFBCT 7.1.3 No change.

7.2.1 7.2-1 Hydrogen The total amount of Hydrogen gas stored has Environmentally inconsequential.

Gas not changed; however,' the volume has been Storage restated in terms of standard volume (28,000 l

SCF) rather than bottled storage capacity. This change will be provided in a future amendment to the ER.

t 7.2.2 New Oil and Systems / Buildings involved with the Incorporation of these features in station Hazard-storage, transfer, or loading / unloading design provides further protection against ous of any oil or hazardous material are spill of oil and hezardous material Material provided with secondary containment reaching the local environment.

Spills systems capable of containing the Ervironmentally inconsequential.

largest source of an oil or hazardous material spill without any adverse environmental impact. This change will be provided in a future amendment to the ER.

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CRBRP ENVIRONMENTAI. REPORT REVIEW PAGE 29 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFBCT 8.0 8.1 (All Future)

Socio-Complete assessment of socio-economic This change is judged to be slightly 8.2 economic parameters of CRBRP plant construction favorable. It provides current data 8.3 and operation is being provided in a future base f or evaluation of socio-economic amendment. Assessment is based on assessment.

current construction manpower rcquirements 1980 census and 1981 community service and infra-structure data.

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CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 30 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONMENTAL EFFBCT 9.1 To Be Provided Altern-This section will be addressed in tne Environmenta A Ay anconsequenta at.

1 ative supplement to the LMFBR Program Final Ap-Environmental Statement (PFES). This pr oaches section of the ER will be revised accordingly.

9.2 To Be Provided Altern-a) Same as Section 9.1 above.

Environmentally inconsequential.

ative b) For discussion of Hook-on arrangements Sites &

refer to response to Question 320.1R Plant and 320.2R.

Arrange-c) Further discussion of candidate sites will ments be provided in the near future.

d) Section 9.2.5.3.4 will be updated to reflect response to Question 230.5R.

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CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 33 ER SECTION REVISED ITEM DESCRIPTION OF CHANGE ENVIRONIENTAL EFFBCT 12 12.0-1 thru Permits Provides revised listing of Non-NRC No changes in estimated environmental 12.0-7 permits purpose legislation and effects due to this tabulation.

regulation enacting permit approval or notification.

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CRBRP ENVIRONMENTAL REPO1T REVIEW PAGE 34 ER SECTION REVISED ITEN DESCRIPTION OF CHANGE ENVIROINENTAL EFFECT 13 13.0-3 thru Refer-Update to include Amendment IX references.

No environmental effects.

13.0-38 ences

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CRBRP ENVIRONMENTAL REPORT REVIEW PAGE 35 ER SECTION REVISED ITEN DESCRIPTION OF CHANGE ENVIRONNENTAL BFFECT 14 14.1-2 thru Clean Incorporates 1977 amendment to the State The change is judged to be slightly (Appen-14.1-81 Water of Tennessee Water Quality Criteria favorable. It provides criteria for dix to Act of incorporates the 1977 clean water act CRBRP design for reduction of impact on Ssction 1977 amendments to the Federal Water Pollution the environment.

2.5)

Control Act.

14 14.3-3 Sauger Provides update information on spawning No environmental effects.

(Appen-of sauger.

dix to S ction 2.7) 14 14.6-3 Cooling Updates cooling tower blowdown rate The increase in cooling tower blowdown (Appen-Tower provides current design blowdown is judged to be insignificant compared dix to temperature values.

to the Clinch River flow rate.

Ssction 10.3)

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s ITEM 320.9R Update economic cost analyses developed in support of your decisions regarding alternative plant designs.

Specifically, Sections 10.1.5 (Tables 10.1-9 and 10.1-10),

10.2.5 (Tables 10.2-1 and 10.2-2),10.3.5 (Table 10.3-2) and 10.6.5.

RES PONSE Although the economic costs presented in the tables identified in the question are not up-to-date in current prices, the analyses remain valid.

Since the time of the evaluation of these analyses by the NRC (NUREG-0319, February 1977) the major change has been the effect of inflation on the costs (both economic and environmental) included in the analyses.

However, general price inflation has not affected the relative ranking of the alternatives nor the relative balance of environmental costs to economic costs.

The only change that would invalidate the analyses would be the development of an advantage (either technological or economic) not previously available for one of the alternatives.

For the facility systems referenced in the

question, i.e., cooling system, sanitary waste system, and intake and discharge systems, significant changes such as new technologies with a lower cost that would require reanalysis of i

alternatives have not developed.

Fur thermor e, the design, testing, and procurement of these facility systems are at advanced stages of completion.

If a reanalysis were to be undertaken at this time, any alternative would have to demonstrate economic and environmental cost 0320.9R-1

~

~

advantages greater than the selected design's costs.

These costs to be assessed against alternative systems would properly include j

the amounts expended to date on the selected systems to design, test and procure the equipment, the costs to termiante current contracts, and the environmental costs associated with scrapping fabricated components.

In the case of the selected cooling system for the plant, i. e., a mechanical draf t wet cooling tower, changes from this design could cause changes in plant performance parameters that might have costly cascading effects on the current design and procurement of the steam / water cycle equipment.

All of these " sunk" costs would properly be included in any updated analyses because the applicant has proceeded on the basis of previously valid evaluations of alternatives.

1 I

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4 Q320.9R-2

ITEM 460.1R Have any design changes been made in the radwaste treat-ment systems since the FES was published 2/77?

RESPONSE

Yes.

These design changes are stated and included in the Response to Question 290.1R.

ITEM 460.2R Have any changes been made that would cause the source term to be altered?

This could include fuel and coolant specifications and behavior as well as operational aspects.

RES PONSE o

There has been no change to the coolant specifications.

o There have been changes to the fuel specifications due to the core design change from the homogeneous core to the heterogeneous core and these changes do result in some change to the source term.

The following table provides a comparison of homogeneous core and heterogeneous core fuel specifications and the target average and peak burnups.

9 0

0460.2R-1

Heterogenous Homogeneous Soecification Current Core Previous Core i

Total heavy metal 5.2 6.5

'nventory in fuel i

(metric tons)

Plutonium enrichment 33.2 18.7 to 32.0 in fuel (Weight %)

Isotopic Composition of Feed Plutonium (%)

Pu-238 0.1 1

Pu-23 9 86.0 71 Pu-240 11.7 19 Pu-241 2.0 7

Pu-242 0.2 2

Target Burnup (MWD /T)

Average 80,000 100,000 Peak 110,000 150,000 Q460.2R-2

J o

However, it should be noted that in determining the source terms for Proj ect use, the isotopic composition of LWR discharge plutonium was used instead of the composition in the fuel specification for conservatism.

o The source terms in the cover gas have remained relatively unchanged from the basis used in the 1977 amendments to the ER.

o changes in the inert gas processing system have had the following effects:

1)

Noble gases are now sent from Increases dis-RAPS Noble Gas Storage Vessel charge from RSB to CAPS, rather than being HVAC bottled for disposal 2)

RAPS Cryogenic Charcoal Beds Increases acti-have been deleted vity to CAPS, but CAPS charcoal beds supply hold-up time - little effect on offsite releases 3)

Re-evaluation of CAPS Decrease in charcoal bed efficiency offsite releases 4)

RAPS moved inside of RCB No effect on normal operation Favorable effect with regard to accidents 0460.2R-3

5)

Effluents from other slightly increases systems to CAPS added discharge from RSB to the total effluent HVAC (effluents from refueling d

fail fuel monitoring

system,

' \\,

system, and maintenance system)

The net effect of these changes will be reflected in an upcoming ammendment to the ER.

These changes are also contained in response to Question 290.1R.

O 0460.2R-4

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