ML13303A631

Forwards Eia & Negative Declaration Supporting Extension of Completion of Facilities

ML13303A631
Person / Time
Site:	San Onofre
Issue date:	10/04/1978
From:	Regan W Office of Nuclear Reactor Regulation
To:	Baer R Office of Nuclear Reactor Regulation
Shared Package
ML13303A632	List: ML13303A631 ML13303A633 ML13303A634
References
NUDOCS 7810160225
Download: ML13303A631 (9)

Text

DISTRIBUTION Dockets(ENVIRON) 4 EP-2 Reading Attorney, OELD WHRegan OLynch MDuncan HRood, LWR-2 Docket Nos. 50-361 JLee, LWR-2 and 50-362 MEMORANDUM FOR:

Robert Baer, Chief Light Water Reactors Branch 2. DPM FROM:

WMn. H. Regan, Jr., Chief Environmental Projects Branch 2

SUBJECT:

EXTENSION OF CONSTRUCTION PERMITS FOR SAN ONOFRE 2 AND 3 Enclosed are the Environmental Impact Appraisal and Negative Declaration supporting extension of completion dates for San Onofre Nuclear Generating Station, Units 2 and 3.

Wmn. H. Regan, Jr., Chief Environmental Projects Branch 2 Division of Site Safety and Environmental Analysis

Enclosures:

As stated DSE:EP-2 DSE:EP-2 DSE:EP-2 4Rw1 4 n:dm OLynch WHRegan Z) 10/3/78 10/

/78 10/ /78

r9 NEtATIVE DECLARATION SUPPOPRTING :

EXTENSON_ OF CONSTRUCTION P~ERMIT OS PR7AN~D PS EXPIRlATION 1:01PO SOUTHERN CALIFQN A E1SO COMIPANY AND SAN DIEGO GAS AND ELECTRIC COMPANY SAN 0NOERE NUCLEAR QENERATING STATION UNIT NOS 2A&

00C.T.OS. 5036 AND 526?

The U. S, Nuclear Regulatory Coiission (the Cominission) has reviewed the Southern California Edison Company and San 0iegy Gas. and Et1ctric Company (permitteasg)request to extend the expir4tion date of the on struction permit for the San Gnofre Nuclear Generating Station, Unit Nos#

2 and 3 (CPPR-9.7 and CPPR-98) which are located in San Diego County-in the State of California.

The permIittees requested an eighteen month extension to the permits through June 1, 1980 for CPPR-97 and through June 1, 1981 for CPPR98 to allow for completion of construction of the facilities.

The Comission's Division of Site Safety and Environmental Analysis has prepared an environmental impnact appraisal relative to these changes to CPPR-97 and CPPR-984 based on this appraisal, the Conis-sion has con cluded that an envfronmental impact statement for this particular action is not warranted because there wilt be no significant environmental impact attributable to the proposed action other than that which has already been described in the Comfission#t final Environmental Statement-Construction Permit stage or evaluated in the environmental impact appraisal The environmental impact appraisal is available for public inspection at the Commission'S Public Document Roomb. 1717 H Street, N. 1 OFFICE sURNAME..I D A T E.

NRC FORM 318 (9-76) NRCM 0240 UIS. GOVERNMENT PRINTING OFFICE: 1976-626622

held at the time of operating licensing review of the units did not identify any adverse impacts on the environment or the surrounding comiunity which were not anticipated and adequately discussed in the FES-CP or which were significantly greater than those discussed it the FSS-CP, C.

Imat 9 Terrestrial Environment Land Use The FES.CP (Secto 4.Z) discussion on the impact that construction of SONGS 2 & 3.will have o the terrestrial environment is still valid.

However, several transmitson line route modifications have been made or proposed since issuance of the construction pernits that were not evaluated by the staff in the Final Environmental State ment, Construction Permit stage.

The environmental. impacts.

associated with the transmission line route modifications are evaluated below, The impacts of site preparation on land use are associated almost exclusively with the excavation of the San Onofre Bluff. About 16.4 ha (40*5 acres) of the San Onofre Bluffs have been excavated, and no further excavation is anticipated.

Much of this excavated material was deposited at Japanese Mesa, on Camp Pendleton Marine Base north and across from SO4GS, Thirty-four hectares (84 acres) of the 50.6-ha (126-acre) mesa, is being used for equipment storage, fabrication shops, and as a contractor's lay down area.

Some of the excavated soil was deposited as a mound along.the western edge of the mesa to reduce the visual impact of the area as seen from highway:1-5.

Visual inspections of the plant site boundary and the bluffs adjacent to the site areo enducted biweekly, Two instances of erosion were encountered, and appropriate corrective action was implemented to reduce these impacts.

To date, construction of the plant has had no signifitcfant impact on offsite land use, Land use changes that occurred offsite consist primarily of an increase in housing developments,. In a few cases',

developments were built nearly adjacent to the transmission line corridors (ER, Sect. 3.9.1.2).*

The greatest impact on the transportation facilities at San Onofre due to construction*,related activities is the increased congestion on highway 1,5 during shift changes& Little or no congestion occurs during morning-shift changes in both incoming and.outgoing traffic, but a 20.; to 30-min...delay occurs for outgoing traffic during evening

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NRC FORM 318 (9-76)

NRCM 0240 U S. GOVERNMEiNT PINTING OPFICIII I976-626.62

changes (ER, Suppl. 2, Item 7).

Movement of heavy equipment from the Del Mar Boat Basin to the station site creates a temporary adverse impact to people using San Onofre State Park.because the park is temporarily closed during these equipment moves.

To minimize this impact, all equipment moves occur duririg off-peak months (ER, Supp. 2, item 27),

Section 3.9 of the Applicanit's Environmental Report*0perating License Stage, describes the modifications associated with the transmission lines.

Construction of the proposed Talega Substation and the proposed transmission lines is not expected to create any significant adverse impacts.

The Talega Substation will be constructed on a 2-ha (5-acre) site that will require 4 ha (10 acres) to be gradjed.

Therefore, small amounts of netural wildlife habitat-w0il be temporarily or permanently destroyed. About 35.4 kn (22 miles) of new transmission lines will be constructed, and an additional 196.3 km (122 miles) will be retro fitted to operate ateith.er.220 or 230 kV.

4o new rights-of-way will be required.

Construction of additional towers and access road extensions, however, will require a total of 5.2.ha (12.8 acres) of land.

The new lines proposed be SCE will cross about 0.5 km (0.3 mile) of prime and unique farmlands (those areas with land use capabilities of class I or class II).- Exact placement of the towers has.not been indicated, but with an everage.of 3 towers per kilometer (4.8 towers per mile) and about 93 m2 (1000 ft ) per tower base, only 0.014 ha (0.034 acre) of prime and.unique farmlands will be taken out of production by tower bases.

These towers will be placed in existing rights-ofiway bounded on each side by other existing transmission lines; therefore, a minimal amount of additional land for access roads will be required.. The new.transmission line proposed by SDG&E (from SONGS to Talega Substation) is.located entirely on Camp Pendleton Marine Base and will require 0.76 ha (1.88 acres) of land for tower bases and access road extensionsi Terrestrial ecology Terrestrial ecological impacts on the SONGS 2 & 3 site and vicinity have not been more serious than predicted in the FES-CP. A relatively small amqunt of wildlife habitat was lost due to excavation of the

bluffs, Similar habitat is.adjacent to the site, so it is possible that most of the animal populations emigrated to these areas.

Impacts on the terrestrial ecology along the-transmission line corridors.will be primarily short-tenm.

The relatively sinall amount of land 5s? ha (12,8 acres) required for tower bases and access road extensions makes it unlikely that any significant longsterm adverse Impact-will occur to the terrestrial ecological characteristics of the area. _Con4 struction of additional towers could lead to an increase in the-number of raptors along the transmission line corridors because these birds

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S U R N A M E -.

D A T E NRC FORM 318 (9-76)

NRCM 0240 U1 S. GOVERNMENT PRINTING OFFICE, t976 -626.624

No endangered animal, species in the vicinity of the site have been or are expected to be affected adversely.by the construction activities, The California brown pelican, which was observed several times on.the beach adjacent to the construction area, is not vastly disturbed by human activity; decline of this species is believed to be caused by pollutants such aS DDT, Recent reports indicate that the status of this species. is. improving in the Pacific states since strict pesti cide laws have been enacted.1 A nesting colony of the California.

least tern is located on Camp Pendleton Marine Case near.the Del Mar.

goat 8asin, a facility used by the applicant to move heavy equipment, Construction schedules and equipment delivery dates were altered to avoid disturbing the nesting te-rns in the sanctuary during nesting season.

Also, the nesting colony during the breeding season is a restricted area for all nonauthorized personself 2 From a careful review of the habitat requirments for other endangered species whose ranget include Orange and San Dico counties, the staff believes that.such species are not likely to be affected by the construction activities.

Furthermore, no known onsite habitats are utsad by endangered species.

and no habitats adiecent to or within the transmis-sion line right-of-way have been classified by state or Federal authorities as critical to any endangered species (ER, Suppl. 1, Jitem 22).

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-on Auatc Envirpm Effects on water use The major impact on water use resulting from construction of SONGS 2 & 3 is related to the construction of the offshore conduit system, The presence of the construction trestle wil present an obstruction to coastal navigation.

However, the shallowness of this region prohibits large vessels from using. this area, so.this impact will be restricted to small craft and will be only temporary, until the trestle is removed.

The dredging operation for the lay down of the buried conduit systems will enhance the natural.turbidity near the ocean -bottom.

This will produce an occasionally visible brownish discoloration at the surface.

This impact is.baing.monitored and recorded by means of weekly aerial photographic surveys.

Effects On aqtat ic The potential effects on.aquatic biota from constructioni were discussed adequately in the FES-CP, The conclusion remains that no rpemanent adverse effects are anticipatedi. This conclusion is based on the soundness of the programs adopted by the applicant to identify impacts and to initiate corrective measures (ER, Sect. 4,5) and on the results of the Environmental Technical Specifications (ETS) monitoring program for Unit T.

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NmeC FiOiM 318 (9-76)

NRCM 0240 Ul S. GOVERNMENT PRINTING OFFICES 1976 - 626.82"

J.,

DISTRIBUTION Dockets(EN VIRON)

OCT 4 1978 EP-2 Reading.

Attorney, OELD WHRegan OLynch MDunc an HRood, LWR-2 DocketJLee, LWR-2 MVVIORANDUP FOR:. Robert Baer,, Cief Lfght Water Reactotrs Branch 2, DPM FROM.

W%, H. Regan~ J]r,. Chiedf E n vi ronmen tA 1 Projecti; -ranCh 2,

SU8~E(ET:

EXTENSION -OF-CONSTRUCTOTlI PERMITS FOR SAI' ONOPRE 2 AP-1 3

Encose ae te nvi'onietalImactApraisal7 and Negative Declaration supportig extensionri of 'coi~let'lon dates- -for, Sap Onofre Nuclear -Generating Station, 1knits-2 and 3.

Orle-aal signed byq W. H. fte,<pa 1-14 Reoan, Jr. Chief Environmiental Projects Branch 2

Division -of Site Safety and Ev dmenta.1 Ahayi

Enclosures:

As stated 0/

OFC 3 DSE',

2 D

2 D

2 AT*

10/3/78

.10/ 1/78, 10/)/178 NRC FORM 318 (9-76) NRCM 0240

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S. GOVERNMENT PRINTING OFFICit 1976 -'626-62A