ML20070C988
| ML20070C988 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 06/29/1994 |
| From: | Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20070C990 | List: |
| References | |
| NUDOCS 9407070105 | |
| Download: ML20070C988 (9) | |
Text
_., _
,m e
e Stattori support Departrnom T. S. 7.4.2.B.2 w
M,P PECO ENERGY 5"32%:A 3.c.s c.mmm,. % a Wayut l'A 1Cfd ' i 91 June 2'.,1994 Docket Nos. 50-27/
50 278 License Nos. DPR 44 DPR/A U. S. Nuclear Rogu'atory Commission Attn: Document Control Desk Washington, DC 20555
Subject:
Peach Bottom Atomic Power Station, Units 2 and 3 Proposed Change to National Pollutant Discharge Elimination System Permit
Dear Str:
This letter is being submitted in accordance w;;S Technical Specifications Section 7.4.2.B.i Appendix B, of the Peach Bottom Atomic Power Station (PBAPS), linits 2 and 3 Facility Operating Ucev,es, which stipulates that the NRC shall be provided with a copy of any proposed changes to permits and certificates required by Fede al, State, local and regional authorities for the protection of the environment.
By lettc.rs dated February 24,1994 and Mrch 31,1994, PECO Energy Company submitted the attached information to th3 Poonsylvans llopartment of Environmental Resources (PADER). The information suoported a request for an amendment to the National Pollutant Discharge Ellrn: nation System Permit (Permit No. PA0009733) for PBAPS Units 2 and 3. The amendment was necessary to support the power rotate program. Thb icMor prov'de.a you with a copy of tne Information that was.cubmitted to the PADER.
If you have any questions or require additional information, pF..se contact us.
Sincerely, a
n.
/
Geor A. Hunger, Jr.
Director - Ucensing Attachment cc:
T. T. Martin, Administrator, USNRC, Region l W. L Schmidt, Senior Resident inspector, USNRC, PBAPS 9407070105 740629 PDR ADOCK 05000277 P
PDR y
e
. g =.
PECO ENERGY
"'w - -
2301 Ma@t Street I'O nns0009 PhdaNrA.t PA 19101 % 99 215 041 4000 1
February 24,1994 N1r. l'aul Yamell Depanment of Envinmmental Resources One Ararat iloulevard llatrisburg. PA 17110
Dear h1r. Yumell:
Suhject:
Peach Bottom Atomic Power Station NPDES Pennit No. PA(HX)9733 The following intonnation is being provuled in reference to the renewal of the subject NPDES pennit:
1)
Enclosed is a copy of the completed fish study required for updating the 316(a) thennal variance approval at Peach Bottom Atomic Power Station. The study was perfonned at the request of h1r. l ance Ilimmelberger. hir. Ilinunelberges indicated that PaDER was interested in obtaining updated infonnation on the relative fish abundance, distribution and species composition in the Conowingo Pond. A study plan was submitted to and approved by hir.
Thomas llamm of PaDER's Division of Assessment and Standards and hir. Inoy Young of the Pa. Fish and Hoat Conunission. The report concluded that no obvious changes in the
. species abundance were observed between 1993 and the historic record. Changes in the abundance of a panicular species has historically been associated with year class strength. A copy of this report will be forwarded to hir. Barron.
?)
As per our previous discussions and meeting, Peach Bottom is planning to increase the generating plant's rated pwur levels. As a result of the increased power levels, the temperature of the circulating cooling water leaving the main condensers will increase by approximately I degree fahrenheit. A study was perfonned by Stone and Webster Engineering l
Company to detennine the eflect of the temperature increase on the cooling tower perfonnance l
and compliance with the ;<isting 316(a) thennal variance approval. The study concluded that l-the cooling towers will be able to meet the rzent temperature limitations but, the pennit l-matrix would need to be modified. Calculallons were performed using a heat balance technique and the new matrix was generated (see attached). Picase note the following f
conceming the new matrix:
l l
a)
The lowest seven day moving average nver temperature requiring cooling tower operation has been lowered from 53 degrees F to 51 degrees F.
b)
The percent power values in the matrix have been replaced with absolute power values in hiepawatts Thennal (h1Wih). The use of absolute values will reduce any uncenainly as to what power level the plant is operating and the associated cooling tower requirements.
c)
An additional block of platit conditions / river water seinperatures has tren j
pnivided for 2. unit operation at rerated full power levels, with either 4,5 or 6 circulating water punips in operation. The power level values range from 66(X) to 6916 MWih (20l'#, - 210'J. power under the old fonnat).
3) in addition to the changes identilied above, the following areas in the matrix require revisions:
a)
The matrix cu Tently does not cover the plant condition where one rcrated unit is in operation with cither 2 or 3 circulating pumps running while the other unit is shutdown.
b)
Plant personnel discovered an inconsistency in the matrix with regard to tower usage al certain plar.1 conditions. River temperatures given for certain plant conditions were found to be several degrecs too high. These temperatures will need to be recalculated.
As of this time, the calculations required to correct the discrepancies have not been completed. They will be forwarded to you upon completion.
Once you have reviewed this inlonnation, we request that a meeting be held to discuss the new matrix and the results of the Ib.h study, Also, we would like to discuss the timing of the new pennit and the incorporation of the requested amendment. If you have any questions or require additional infonnation, please contact me at (215) 841-5177.
Sincerely.
}.MW.-.
Ruben M. Matty, Jr.
Engineer Envirotunental Affairs Attachment bec:
J M. Madara, Jr.
w/o attaciunent G. R. Raincy G. M. Morley T. J. Nicssen G. D. Edwards J. M. Annstrong W. F. McElroy G. A. Ilunger w/
attaciunent E. J. Cullen M. C. Kray A. J. Wasong A. D. Odell
- C. A. liarkins l
.-.4----
TABLE.1 - NUMBER W CDOLING TOWERS REQUIRED BASED CN THE NUMBER & CIRCULATIPG WATER PtNPS OPERATitG AND INLET WATER TEWERATURE (7-04Y MOVING AVERAGE)
COMBINED 2 UNIT REACTOR POWER LEVEL REQUIRED 650 -1339 MWTH 1340 -1989 MWTH 1990 -2649 MWTH 2650 - 2979 MWTH 2980 - 3309 MWTH NUMSER
' PtNS Pt W S PUMPS PUMPS PtMPS g
I
& TWGS 2
3 4
2 3
4 2
3 4
2 3
4 2
3 4
5 6
E F
g.- _ _
f O.
32-80 32-82 32-85 32-69 32-77 32-83 32-51 32-68 32-80 32-46 32-59.32-78 3 32-53 32-64 g32-76 32-78 32-80
[
1 80+
'B2+
85+
69-81 77-83 83-86 51-72 68-78 80-83 46-60 59-75 78-81 53-65 64-72 76-80 78-81 80-82
[
l I
2 81+
83+ '
86+
72+
78+
83+
60+
75-85 81-85 65-86 72-84 30-84 81-84 82-85 L
I 3
85+
85+
86+
84+
I84+
84+
85+
I 4
I-
-'l-I 5
- - ~
1- -
l-f l
' ~ ~ ~ ~ N TO BE CORRECTED LATER
?
i REQUIRED 3310 -3639 MWTH 3640 - 3969 MWTH 3970 -4299 MWTH 4300 -4629 MWTH 4630 -4959 MWTH i
L NtNBER PUWS PtWS PtWS POWS PUMPS f
OF TOWERS -
'2 3
4 5
6 4
5 6
4 5
6 4
5 6
4 5
6 i
~~~~~~~~l 32-73 32-78 32-79 32-69 32-75 32-77 32-65 32-72 32-76 0-32-69 32-73 32-65 32-71 l
TO BE
' 73-78 78-80 79-81 69-76 75-79 77-80 65-U 72-77 76-79 32-69 69-74 73-77 32-64 65-72 71-76 i
1 l'
2 l ADDED
- 78-82 80-83 81-84 76-81 79-82 80-83 73-79 77-81 79-82 69-76 74-79 77-81 64-75 72-78 76-79
' LATER 82+
83+
84+
81+
82+
83-87 79-85 81-85 82 76-84 79-83 81-84 75-82 78-83 79-83
~
j 3
l--
j 4
e 87+
85+
85+
85+
84+
83+
84+
82+
83+
83+
5 l
i RERATED 2 UNITFULL POWER i
sf i
1EQUIRED 4360 - 5289 MWTH 5290 -5609 MWTH 5610 - 5939 MWTH 5940 - 6269 MWTH 6270 -6599 MWTH I
6600 -6915 MWTH g
[
j
.MMBER PUMPS PUMPS PtNS PUPS PUWS I
PUMPS g
4 5
6 4
5 6
4 5
6 4
5 6
4 5
6 1
4 5
6
--& TNERS-I I
i I
0-
- - '32-60 32-68 32-65
- 61 32-56 32-53 32-51 g
F 1
32 8 60-68 68-74 32-53 32-64.65-71 32-49 32-59 61-68 32-47 32-54 56-64 32-46 32-51 53-59 32-45 32-49 51-55 I f
'2 68-76.'74-78 53-68 64-73 71-76 49-60 59-71 68-75 47-53 54-66 64-72 46-49 51-60 59-69 45-47 49-52 55-64 3 f
I 3
72-81. 76-82 78-82, 68-80 73-80 76-81 60-78 71-79 75-80 53-75 66-77 72-78 49-71 60-74 69-77 I 47-53 52-72 64-73 g
[
'e 4
81+1
'82+
82+
80+
80+
- Bl+
73+
79+
50+
75+
77+
78+
7t+
74+
77+
l 53+
72+
73+
I 5
g--
\\.
TO BE CORRECTED LATER '
(
~ ~ ~ ~ ' ~ ~ ~ ~
f
b i
TABLE 1 - t&SER OF CDOLitG TOWERS REQUIRED BASED Cid THE P&BER OF CIRCULATitG WATER PtNPS OPERATitG AND lt4LET WATER 7EMPERA.URE (7-DAY MOVING AVERAGE)
C0481NED POWER 1EVEL (2 t#4tTS - 200f 5 REQUIRED 20% - 40%
41% - 60%
61% - 80%
81% - 90%
91% - 8001 f&BER PUMPS PUMPS PUMPS PUMPS PUMPS OF TOWERS 2
3 4
2 3
4 2
3 4
2 3
4 2
3 4
5 6
r 32-80 32-82 32-85 32-69 32-77 32-83 32-51 32-68 32-80 32-46 32-59 32-78 32-53 32-64 32-76 32-78 32-80 f
80+
82+
85+
69-81 77-83 83-86 51-72 68-78 80-83 46-60 59-75 78-81 53-65 64-72 76-80 78-81 80-82 l
2 81+
B3+
86+
72+
78+
B3+
60+
75-85 81-85 65-86 72-84 80-D4 81-84 82-85 t
3 85+
85+
86+
84+
B4+
84+
B5+
4 5-l REQUIRED 1015 - 110%
111% - 120%
121% - 130%
131% - 140%
I415 - 150%
1511 - 160%
F4 UMBER PUMPS PUMPS PUMPS PUMPS PUMPS PUMP 3 I
OF TOWERS 4
5 6
4 5
6 4
5 6
4 5
6 4
5 6
4 5
6 0
32-73 32-78 32-79 32-69 32-75 32-77 32-65 32-72 32-76 32-69 32-73 32-65 32-71 32-60 32-68 1
73-78 78-80 79-81 69-76 75-79 77-80 65-73 72-77 76-79 32-69 69-74 73-77 32-64 65-72 71 '6 32-68 60-68 68-74 2
78-82' 80-83 81-84 76-81 79-82 80-83 73-79 77-81 79-82 69-76 74-79 77-81 64-75 72-73 76-79 68-72 68-76 74-78
-3 826 83+
84+
Bl+
82+- 87 79-85 81-85 82-85 76-84 79-83 81-84 75-82 78-83 79-83 72-81 76-82 78-82 4
87+
85+
85+
B5+
84+
83+
84 +
82+
83+
83+
el+
82+
82+
3 REQUIRED 161% - 170%
1115
.1805 181% - 190" 1915 - 200%
PPJMSER PUMPS PUMPS PUMPS PbNPS 07 TOWERS 4 ~
5 6
4 5
6 4
5 6
4 5
6 O
32-65
- '- 32-61 32-56 32-53
, 1 32-53 32-64 65-71 49 32-59 61-68 32-47 32-54 56-64 32-46 32-51 53-59 i
2-
$3-68 64-73 71-76 49-60 59-71 68-75 47-53 54-66 64-72 46-49 51-60 59-69 3
68-80 73-80 76-81 60-73 '71-79 75-80 53-75 66-77 72-78 49-71 60-74 69-77 I
4 80+
80+
81+
78+
79+
80+
75+
77+
78+
71+
74+
77+
5
e
-:=
=-
}ECO ENERGY
~ ~~
"'m ~ c-~
2301 Mane: $9 eel PO Bow 0699 PMadtlphia PA 19101 0099 21$ Bei 4000 March 31,1994 Mr. Paul Yarnell Department of Environmental Resources One Ararat Boulevard liarrisburg, PA 17110
Dear Mr. Yarnell:
Subject:
Peach Bottom Atomic Power Station NPDES Permit No. PA0009733 The following information is being provided as a follow up to our letter dated February 24,1994 (enclosed) concerning the operation of Peach Bottom Atomic Power Station at rerated power levels and the NPDES discharge pennit. In that letter we indicated that additional calculations would be required to complete the cooling tower matrix. Enclosed is the completed matrix with the fellowing revisions:
Ii Two columns of river water temperatures have been added to the cooling tower operation matrix. This accounts for one rerated unit in operation with 2 or 3 circulating water pumps running, while the other unit is shutdown.
2)
Corrections to river temperatures for specific plant conditions have been made.
The new river temperatures now display consistency with the balance of the matrix.
in addition, we are requesting that the definition of " Average Daily Temperature" i
l contained in Table I, Paragraph 2.D, be amended to read, "the arithmetic means of at least six measurements during a 24-hour period." The basis for this request is typically, all river temperature measurements are within i I degree F. for a given day during the summer tower season. During the spring and fall, the river temperature does not change more than 1 or 2 degrees F. in a given day. Given the slow changing dynamics associated with river temperature, six measurements in a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period (versus 12 measurements) will provide sufficient data for calculating the 7-day moving aserage. Additional measurements per day do not necessarily provide further useful data for calculation pmposes.
.. _ _ _ ~..... _. _... __
If you have any questions or require additional information, please contact me at (215) 841 5177.
Sincerely, S*f &'
Robert M. Matty, Jr.
Engineer Environmental Affairs Attachinent bec:
J. M. Madara, Jr.
w/o attachment G. R. Raincy G. M. Morley T. J. Niessen G. D. Edwards J. M. Armstrony W. F. McElroy G. A.Ilunger w/
attacInnent E. J. Cullen M. _C. Kray A. J. Wasong A. D. Odell C. A. liarkins CCD
TABLE 1 - N'pSER & CDOLING TOWERS REQUIRED B 3ED ON THE NUMBER & CIRrVLATINC WAVER RNPS WERATING 40 INLET WATER TEWERATURE (7-DAY WNING AVERAGE)
COMBINED 2 UNIT REACTOR POWER LEVEL REQUIRED 650 - 1339 MWTH 1340 -1989 MWTH 1990 - 2S49 MWTH 2650 - 2979 MWTH 2980 - 3309 MWTH N'JMBER PUPS PtMPS PUMPS PUMPS PtNPS
& TOWERt 2
3 4
2 3
4 2
3 4
2 3
4 2
3 4
5 6
7___
0 32-80 32-82 32-85 32-69 32-77 32-83 32-51 32-68 32-80 32-46 32-59 32-78 l 32-45 32-53 g32-76 32-78 3?-80 1
80+
82+
85+
69-81 77-83 83-86 51-72 68-78 00-83 46-60 59-75 78-81 45-49 53-68 76-80 78-81 80-82 g
81+
83+
86+
72+
78+
83+
60+
75-85 81-85 49-81 68-81 80-84 81-84 82-lJ5 2
I 3
85+
85+
st+
81+
184+
84+
85+
4 i_
- l. -
5 1-l-
L----A CORRECTED R
VALUES g ERATED 1 UNIT CULL POWER REQUIRED - - - - -, 3310 - 3639 MWTH 3640 - 3969 MWTH 3970 - 4299 MWTH 4300 - 4629 MWTH 4630 -4959 MWTH NtNBER I l
PU@S PtNPS PUMPS PUWS PUMPS 2
3 4
5 6
4 5
6 4
5 6
4 5
6 4
5 6
\\
& TWERS l I
o 32-52 32-73 32-78 32-79 32-69 32-75 32-77 32-65 32-72 32-76 32-69 32-73 32-65 32-71 I
1 32-47 52-64I 73-78 78-80 79-81 69-76 75-79 77-80 65-73 72-77 76-79 32-69 69-74 73-77 32-64 65-72 71-76 L
2 147-80 64-801 78-82 80-83 81-84 76-81 79-82 30-83 73-79 77-81 79-82 69-76 74-79 77-81 64-75 72-78 76-79 3
180+
80+
l 82+
83+
84 +
81+
82+
83-87 79-85 81-85 82-85 76-84 79-83 81-84 75-82 78-83 79-83 4
g-g-
87+
B5+
85+
85+
84+
83+
84+
82+
83+
83+
5 I____I i
RERATED 2 UNITFULL POWER
/
REQUIRED 4960 - 5289 MWTH 5290 - 5609 MWTH 5610 - 59?J MWTH 5940 -6269 MWTH 6270 - 6599 MWTH I
6600 - 6916 MWTH g
NUMBER PtNPS PtNPS StJMPS PUMPS PUWS I
F #$
g OF TOWERS 4
5 6
4 5
6 5
6 4
5 6
4 5
6 1
4 5
6 i
I
- 61 O
32-60 32-68 32-65 32-56 32-53 g
32-51 1
32 56 60-68 68-74 32-53 32-64 65-71 32-49 32-59 61-68 32-47 32-54 56-64
" ** 32-51 53-59 32-4s 4-49 51-55 1 I
2 56 68-76 74-78 53-68 64-73 71-76 49 60 59-71 68-75 47-53 54-66 64-72 46-49 Si u 39-69 45-47 49-52 55-64 l 3
72-81 76-82 75-82 68-80 73-80 76-81 60 '8 71-79 75-80 53-75 66-77 72-78 49-71 60-74 69-77 I 47-53 52-72 64-73 g 4
81+
826 82+
B0+
80+
81+
78+
79+
80+
75+
77+
78+
71+
74+
77+
1 53+
72+
73+
I__
_ _ I
~'~~~~~~J CORRECTED VALUE
7ABLE 1 - hv6ER W (00titG TOWERS REOutRED BASED cra THE tmSER & Cf RCt1 ATitG m4TER PimePS CPER A
. m itit.ET UTER TEWERA7URE 17-
- ??]11 REQUIR ED 201 - 401 413 - 601 61% - BOS
- 901 911 - 1001 P&3ER PtNPS PtNS PUMPS PUMPS PUMPS 0F TOWERS 2
3 4
2 3
4 2
3 4
2 3
4 2
3 4
~
6 0
32-80 32-82 32-85 32-69 32-77 32-83 32-51 32-6B 32-80 32-46 32-59 32-78 32-53 32-64 32-76 32-7S 32-00 1
80+
B2+
85+
69-81 77-83 83-86 51-72 68-78 80-83 46-60 59-75 78-81 53-65 64-72 76-80 78-51 BO-52 2
81+
B3+
B6+
72+
78+
B3+
60+
75-85 81-85 65-S6 72-84 30-84 81-84 82-85 3
85+
85+
86+
S4 +
84+
B4+
85*
5
\\
REQUtRED 101% - 11C%
1115 - 1205 12 1 - 1301 1315 - 1401 1411 - 1501 1511 - 1601 P W SER PUMPS PUMPS PUMPS PUMPS PUMPS PLp8PS OF 70dERS 4
5 6
4 5
6 4
5 6
4 5
6 4
5 6
4 5
6 0
32-73 32-78 32-79 32-69 32-75 32-77 32-65 32-72 32-76 32-69 32-73 32-65 32-71 22-60 32-65 1
73-78 78-80 79-81 69-76 75-79 77-80 65-73 72-77 76-79 32-69 69-74 73-77 32-64 65-72 71-76 32-68 60-68 65-74 2
78-82 80-83 81-84 76-81 79-82 B0-83 73-79 77-B1 79-82 69-76 74-79 77-81 64-75 72-78 76-79 68-72 60-76 74-28 3
82+
B3+
B4+
Bl+
B2+
B3-87 79-85 81-85 82-85
~ ;-84 79-83 81-84 75-82 78-83 79-83 72-81 76-32 78-82 4
B7+
B5+
B5+
B5+
B4+
S3+
B4+
82+
83+
83+
81+
B2+
B2+
5 t
REQUIRED 1611 - 1701 1115 - 180%
IS!! - 190%
1915 - 2001 tmSER PUMPS PUMPS PUMPS PliMPS 07 TOWERS 4
5 6
4 5
6 4
5 6
4 5
6 6
0 32-65
- 61 32-56 32-53 1
1 32-53 32-64 65-71 32-49 32-59 61-68 32-47 32-54 56-64 32-46 32-51 53-59 2
55-68 64-73 71-76 49-60 59-71 68-75 47-53 54-66 64-72 46-49 51-60 59-69 l
3 68-80 73-80 76-81 60-78 71-79 75-60 53-75 66-77 72-78 49-71 60-74 69-77
{
4 BJ+
80+
81+
-78+
79+'
BO+
75+
77+
78+
71+
74+
77+
5
{
.