ML20148R680
| ML20148R680 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 04/11/1988 |
| From: | Medford M SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| Shared Package | |
| ML20148R684 | List: |
| References | |
| NUDOCS 8804150019 | |
| Download: ML20148R680 (8) | |
Text
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fOY Southern California Edison Company P O BOX 800 2244 WALNUT CROYE AVENUE ROSEMEAD. CALIFORNIA 91770
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Apri1 11, 1988 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Hashington, D. C.
20555 Gentlemen:
Subject:
Docket No. 50-206 Renewal of NPDES Permit San Onofre Nuclear Generating Station, Unit 1 Pursuant to Section 6.16.2.c of the San Onofre Unit 1 Technical Specifications, 30-day notification of changes to the NPDES Permit for the subject facility is being made.
The adopted permit reflects changes in rules and regulations made during the past five years to the standard NPDES permit which were then tailored to San Onofre. A copy of the approved San Onofre Unit 1 NPDES Permit is provided as an enclosure.
4 If you have any questions regarding the enclosure, please call me.
Sincerely,
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Enclosure cc:
J. B. Martin, Regional Administrator, NRC Region V F. R. Huey, USNRC Senior Resident Inspector, Units 1, 2, and 3 i
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8804150019 080411 PDR ADOCK 05000206 P
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i Fact Sheet l
l for Southern California Edises Campany l
San Onofre suelear Generating Station Omit 1 570E3 Permit and Waste Discharge Requirements I.
Facility Description i
Socc$ Unit 1 is a nuclear-fueled electrical power generating facility i
which began commercial operation in 1968. breal energy provided by the nuclear reactor is used to generate steam to drive electrical turhine generators.
Thereal energy output of the reactor is 1,350 assavatts. The effective operating capacity is currently 436 segawatts, not. Most of the remaining heat is discharged to the marine environment with the ocean water used to cool the steam condensers.
SONCS Unit 1 is located in San Diego County immediately adjacent to the Pacific Ocean, approximately two and one-half siles southeast of San Mateo Point, within the boundaries of the United States Marine Corps Base, Camp Pendleton.
SONGS Unit 1 is located in Section 24, T95, P7W, SSBN, approximately two and one-half elles southeast of the City of San Clemente and approximately 12 miles northwest of the City of oceanside.
SceOS Unit I discharges wastes to the Pacific Ocean, a water of the United States, at latitude 33'21'43" north, longitude 117'33'46" west.
II. Intake and Discharge Structure Description N cooling water intake structure is located approximately 2.980 feet offshore.
m depth of the ocean floor at the intake structure is approximately 27 feet. N intake structure rises approximatcly 10 feet above the ocean floor. N intaka structure is fitted with a velocity cap which tends to produce horisostal rather thaa vertical currents la the vicinity of ths structure. N inside diameter of the intake ceeduit is 12 feet. N velocity of flow in the intake conduit is seven feet per second.
N intake structure is buried at a staiene depth of four feet below the ocean fleer. At the shoreward end of the intake conduit, the seawater passec through a screeewell where har and traveling screena remove entrained debris and larger marine organisme. After passing through the screeewell, the water is drava into the circulating motor pumps.
Most of the water then passes through the condenser, where heat exchange occurs. m time r9 quired for coolies water to pass through the condenser is approxiestely eight seconds. Water for component cooling and turbine plent cooling is drawn from the asia coolias water flow upstreae of the condenser. This water passes through the respective heat exchangers and is returned to the asia coeltag water flow downstress of 4
the condenser.
After passing through the condenser, the cooling water is returned to the ocean through the discharge structure via the discharge conduit. N inside diameter of the discharge conduit is 12 feet.
The time required for cooling water leaving the condesser to reach the ocean is C
1
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. Fact Sheet for Southern California Edison Ceapany The discharge structure is locatedh disc spyroximately eight sinutes.
The depth of the ocean approximately 2.40 feet of fshore.
n flesr.
N discharge etnisus depth of four feet below the oceafloor at the ly 25 feet.
cture at a eelocity of structure rises approximately 10 feet ais discharged u d
approximately four feet per secon.have a velocity cap.
the intake structure but does not III. Discharge Description Once-through cooling water The ling system.
A.
SONGS Unit I uses a once-through ocean water coois approximat is drawn into the design capacity of the circulating water pumps In actual operation the rate which ocean waterThe average 4
is h average component cooling water flow rate NGD.
plant averages 460.8 MCD.
te is 6.50 rate is 448 MCD.The average turbine plant cooling water flow raxin NGD. Cooling water temperature is raised appro 6.50 MCD.
during normal operations.
In-plant Westes B.
1.1,ow Volume Wastes discharges to the 1,ov volume vastes consist of the following once-through cooling water streas:
(a) Ciresisting pump bearing lubrication (b) Stess generator blowdows (c) Plant drains *
(d) Radwaste l
- 2. Tard Drains (ie; secondary plant I
- All waste discharges from the plaat drains drais) pass threegh as eily sump and drains and intake area sumpdischarge to the once-thr waste flotation separator prior to cooling eater stream.
IV. Beneficial Uses of Receiving Water Report, $as Diese Bests (9) l The Comprehenstre Uster Quality Control P asficial uses of the (Basin Plan) established the following b<sne waters of the Pacific Ocean:
(a) Industrial Service Supply (b) Navigatten(c) Water Contact Water Recreation Water Recreaties (d) Noa-Contact Fishing (N) Ocean Commercial and Sportof Specisi giological Signific e
of Arese N~Jcies
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Fact Sheet for Sesthera Califerato Edisen Ceepany (h) Mariae Babitat (i) Fish Migration (j) $bellfish Narvesting V.
Basis for Waste Discharge Requirements l
N Eavironmental Protection Agency (IPA) presulgated Effluent Guidelines and Standards for the "Stream Electric Power Generating Point searco Category" on November 19, 1982.
These regulations are contained la 40 CFR Parts 125 and 423 and became effective on January 3,1983.
These regulations establish effluent limitation guidelines, pretreatment standards, and new source performance standards for various in-plant vaste straans and once-through cooling water.
These regulations apply to the discharge froe SONGS Unit 1.
b State Water Resources Centrol Board adopted the Revised Water Quality Control Plan for Ocean Waters of California (Ocesa Plan) on November 17, 1983.
N ocean Plan contains water quality objectives for the coastal waters of California which apply to the discharge from SONGS Unit 1.
The State Water Resources Control Board adopted the Water Quality Control Plan for control of Temperature in the Coastal and Interstate Waters and Enclosed Bays and Estuaries of California (Thereal Plan) on May 18, 1972, and amended this Plan on September 18, 1975.
N Thermal Plan contains temperature objectives for the Pacific Ocean which apply to the discharge froe SONGS Unit 1.
The Coopr'nonsive Water Qws11ty Control Man Report, $sa Diego Basis (9),
(Basin Plan) was adopted by this Regional Board os March 17, 1975; approved by the State Water Resources Control Board on March 20, 1975; and updated by the Regional leard on February 27, 1978; March 23, 1981; January 24 ad October 3,1983; August 27, 1984; December 16, 1985; and March 25, 1986.
N sydates were subsequently approved by the State Board.
N Basin Flas contaics water quality objectives and beneficial uses of the waters in the saa Diego Region which cyly to the discharge free 808G5 Unit 1.
VI. Proposed Rffinest Limitations Eff1 ment limitations, national standards of performance, toxic and pretreatment effluent standards, and discharge criteria established pursuant to Sections 301, 302, 303 (d), 304, 306, 307, and 316 ef the Federal Clean Water Act and amendments thereto are applicable to this discharge.
The Clean Water Act, Section 301 (b)(2)(A), requires the applicaties of Best Available Technology Econemically Achievable (BAT) effluent limitations for all neeceeventional pollutants.
Section 301(g) of the Clean Vater Act established a mechanism whereby a discharger may obtain a modification of the requirements of the clean Vater Act, provided specific conditicas are met.
On July 28, 1987, the discharger submitted a complete request for a variance from the United
, Fast Sheet for Seethers Califeraio Edison Ceapaay limitaties for toesi States tavironeestal protecties Agency's SAT offleest301(g) of the residual chlectae persuant to Section
)
the initial
&ased on the chloriae injectiGa duration (15 minutes,thod caataine dilution (10:1), and an offluent limit derivatten mesis m effluent limita l
Ocesa Plan, SCE has requested that the dai y as gets Unit 1 he set at for total residual chierine for the discharge frea SoT for tetsi l
0.57 as/1 residual chlorise is 0.20 as/1.
being reviewed by EPA The 301(g) variance request submitted by SCE is IPA requires been made.
final decisies on 301(g) and, as yet, no tentative decision has for SONCS concurrence by the state prior to making aTotal residual chlorine efj l of Unit 1, with and without a 301(g) variance are p eUntil or unless variance request.
h ll be in effect.
Specification B.2.SCE's 301(g) variance request, the BAT limit In March 1980, the State Board investigated the The State Board State.
i the waste assigned as "initial dilution" f actor oThis dilution factor has been u l
bjectives.
discharge limitations which are based on the ocesa p an o 1 outis11.
ge Specification 3 h
Effluent limitations for substances listed in Disc i
quation:
Co + Da (Co - Cs)
Ce a where!
Ce = the effluent eencontration limit, Ce = the concentraties to be met at the completion of initial dilution, Ca = backgreemd seenster coecentration, Da = mini=== probable initial dilutton empressed as parts seawater per part westemater.
VII. procedures for Final Decision d must issue a public In accordance with 40 CTR 124.10 the tagional nearpared and th notice that a draft NPDES permit has been prewill be b d at a public hearing.
The public notice must be issued at least 30The pu it and the permit i
public setice for a public hearing any be g ve hearing.
two notices may be combined, h Regional a combined public notice was isewed by t eNPDES p 29, 1987 Board regarding the draf tlas of a tentativeThe public no Restonal on December Beerd's latest to held a public hearing on the discharge.
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e Fact Sheet fer seethern Califersic Idises company l
Persons wishing to comment upon or object to the proposed determinations should submit their comments in writing by February 5,1988 to the California Regional Water Quality costrel Board, san Diese Regies 9771 Clairemont Mesa Seelevard, Suite B, Sea Diego, CA 92124-1331.
All comments or objections received at the above address of the Regions 1 Board by the appropriate date will be retained and considered in the formulation of the final determinations regarding the draft permit. A public hearing will be held on February 8,1988, at 9:00 a.m. in San Diego, CA.
Oral ad written statements say be presented at the public hearing, and all comments and objections will be considered by the Regional Board.
For further information regarding the NPDES renewal application draf t NPDES permit or public hearing for SONGS Unic 1, contact Mr. Villiam Pannokas in writing at the above address or by telephone at (619)265-5114.
Copies of the application, proposed waste discharge requirements, and other documents (other than those which the Executive officer asintains as confidential) are available at the Regional Board office for inspection and copying between the hours of 8:00 a.m. and 5:00 p.m., Monday through Friday (excluding holidays).
Af ter the close of the public hearing the Regional Board may issue a final permit decision.
If the final determinations of the Regional Board, after consideration of all comments and objections, are substantially unchanged from the tantative determinations, the Regional board will forvara a copy of the final determinations to the permittee and to any person who has submitted written comments regarding the permit.
A final permit decision will become effective ten (10) days after the notice of the final permit decision, unless a later date is specified in the decision or sa appeal to the State Water Resources Control brd (State Board) is filed.
Appeals to the State Board seat be filed in writing withis thirty (30) days following the Regional daards final permit det tsies.
Written appeals to Regional Board actions must be sent to the State Water Resources control Board, 70 Ben 100, Sacramento, CA 95801.
ATTACHMENT A 70 SAW CL ENit 1 AG.
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