ML17296A958

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Forwards Suppl 1 to Environ Rept for Facility
ML17296A958
Person / Time
Site: Palo Verde  Arizona Public Service icon.png
Issue date: 09/08/1980
From: VAN BRUNT E E
ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:
Office of Nuclear Reactor Regulation
Shared Package
ML17296A959 List:
References
ANPP-16218---JM, NUDOCS 8009090392
Download: ML17296A958 (34)
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REGULATORY I RMATION DISTRIBUTION SYST (RIDS)ACEESSION NBR:8009090392 DOC.DATEi 80/09/08 NOTARIZED:

YES FACIL:STN-50-528<Palo Verde Nuclear Statjong" Unjt 1i-Arjzona Publi STN-50 529 Palo Verde Nuclear Stations Unjt 2~Arjzona Publj STN-50 530 Palo Verde Nuclear Station~Unit 3i Arizona Publi AUTH INANE AUTHOR AFFILIATION VAN BRUNT~E.ED Arizona Public Service Co.REC IP~NAME RECIPIENT AFF IL'IAT ION Of f i ce of Nuc 1 ear Reactor Regul at i one Di rector DOCKET,O 0500052~05000529 05000530

SUBJECT:

Forwards Suppl 1 to environ rept for io/6 gb bgl-DISTR IBUTI N CODE: COO'1S COPIES REC VED: LTR TITLE: Environ.Report Amendments NOTES:Standardized Plant.1ze facili ENCI.SIZE: 8 Related Correspondence 05000528 05000529 05000530 RECIPIENT ID CODE/NAME ACTION: SCHWENCERg A.18 KERRIGANgJ.

05 COP'IES L)TTR ENCL'1 1 1 RECIPIENT COPIES ID CODE/NAME LTTR ENCI'EEgJ~19 1 1 INTERNAL: ENV ENG BR Ob NRC PDR 02 RAD ASMT BR 09 SIT ANAL BR 07 1 1 1 1 1 1 1 1 I8E 15 01 U FIN BR'8 2 2 1 0 1 1 1 0 EXTERNAL: ACRS NSIC 20 04 3 3 1 LPDR 03 1 1 Sgp 0 yggo TOTAL NUMBER OF COPIES REQUIRED:" LTTR 17 ENCL 15 hr a~

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~lal tQQIKIwenr P.O.BOX 2I666'HOENIXs ARIZONA 85036 Seotember 8, 1980 ANPP.-16218

-JMA/JRM Director of Nuclear Reactor Regulation U.S.Nuclear Regulatory Commission Washington, D.C.20555

Subject:

Palo Verde Nuclear Generating Station Units,l, 2 and 3 Docket Nos.STN-50-528/529/530

Dear Sir:

Arizona Public Service Company (APS), as Project Manager and Operating Agent for Palo Verde Nuclear Generating Station (PVNGS)Units 1,253, is submitting herewith Forty-one (41)copies of Supplement 1 to the PVNGS Units 1,253 Environmental Report tendered December 5, 1979.This Supplement provides an update to the Environmental Report.Respectfully submitted, ARIZONA PUBLIC SERVICE COMPANY By: E wean E.Van Brunt, Jr.APS Vice President, Nuclear Projects ANPP Project Director On its own behalf and as agent for all other joint applicants.

k~, 1980.,~~~', State of Arizona))ss.P';County of Maricopa)q: f~d-'or'<<~w';.<'-tSub'scrdbed and sworn to before me thts~Sday of I-)(6".'~"'~sat I I, s'y Commission expires: Coo/i/~i 900,909Pq g t 1 l H P l I~'n J(p I g~II fpelKen~ewelsewan P.0 BOX 2I666'HOENIXa ARIZONA 65036 Seotember 8, 1980 ANPP-16218

-JMA/JRM Director of Nuclear Reactor Regulation U.S.Nuclear Regulatory Commission Washington, D.C.20555

Subject:

Palo Verde Nuclear Generating Station Units 1, 2 and 3 Docket Nos.STN-50-528/529/530

Dear Sir:

Arizona Public Service Company (APS), as Project Manager and Operating Agent for Palo Verde Nuclear Generating Station (PVNGS)Units 1,283, is submitting herewith Forty-one (41)copies of Supplement 1 to the PVNGS Units 1,283 Environmental Report tendered December 5, 1979.P This Supplement provides an update to the Environmental Report.Respectfully submitted, ARIZONA PUBLIC SERVICE COMPANY By: E win.an runt, Jr.APS Vice Pr'esident, Nuclear Projects ANPP Project Director State of Arizona)ss~County of Maricopa)On its own behalf and as agent for all other joint applicants.

Sob-tribed and sworn to before me this~5day of II@~7, 1980.My Coranission expires: 800ggg 9/10 (Blank)

PVNGS ER-'OL LIST OF EFFECTIVE PAGES~e s 80+Po Pg+p,p This List Effective Pages identifies those text pages, d figures that are currentl effective in the ER-OL.Pa e or Fi ure No Issue P Pa e or Fi uze No.Issue Title Page iii-v Fig.F-I (Sht I of 2)Fig.F-I (Sht 2 of 2)vi XV Chapter I Tab I-i-I-v 1.1 Tab 1.1-1-1.1-222 Fig.1.1-1-1.1-8 1.2 Tab 1.2-1 1.3 Tab 1.3-1-1.3-5 IA Tab Appx IA T tie Page IB Tab Appx Title Page IB-I-"IB-7 Fi.IB-I IC Tab App IC Title Page Subt le Page Contents Page IC-I-IC-31 Exhibits Title Page IC-A-,I-IC-A-8 Original Original Original Original Origin 0 igi al Or inal rig al Origin Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original.Original Original ID Ta Ap ID Tab ppx ID Title Page ID-I-ID-4 IE Tab Appx IE Title Page IE-I.IF Tab.e Appx IF Title Page IF-I-IF-3 IG Tab'I Title Page IG-IG-14 Fig.G-I-IG-2 IH Tab Appx IH itle Page IH-I-IH 6 II Tab Appx II Titl Page 1I-I-1I-27 IJ Tab Appx IJ Title Pa e IJ-I;-IJ-9 IK Tab Appx.IK Title Page IK-I,-IK-4 IL Tab, Appx IL Title Page.Original Original Original Original Original Original Original Original Original Original Original Original Original...Original Original Original Original Original Original Original Original Original Original.Original Original Original Original Original

'L PVNGS ER-OL Pa e or Fi ure No.'Issue Pa e or Fi ure No.Issue Fig.2.4-1 Fig.2.4-4 Fig.2."4-4-2.4-3 4 (Sht 1)(Sht 2)Fig.2.4-5-2.4-6 Fig.2.4-7 Fig.2.4-7 Fig.2.4-7 Fig.2.4-7 Fig.2.4-7 2.5 Tab (Sht 1)(Sht 2)(Sht 3)(Sht 4)(Sht 5)2.5-1-2.5-4 Fig.2.5-1-2.5-4 2.6 Tab 2.6-1-2.6-4 2.7 Tab 2.7-1 Fig.2.7-1-2.7-3 1L-1-1L-11 1M Tab Appx 1M Title Page 1M-1-1M-14 Chapter 2 Tab 2-i-2-x 2.1 Tab 2.1-1-2.1-35 Fig.2.1-1-2.1-16 2.2 Tab 2.2-1-2.2-21 Fig.2.2-1-2.2-2 2.3 Tab 2.3-1-2.3-63 Fig.2.3-1-2.3-22 2.4 Tab 2.4-1-2.4-9 Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original" Original Fig.3.5-2 Fig.3.5-2 Fig.3.5-2 Fig.3.5-3 Fig.3.5-3 Fig.3.5-4 Fig.3.5-6 (Sht 1)(Sht 2)(Sht 3)(Sht 1)(Sht 2)-3.5-5 (Sht 1)2A Tab Appx 2A Title Page 2B Tab Appx 2B Title Page 2B-1-2B-5 2C Tab Appx 2C Title Page 2C-1-2C-5 Chapter 3 Tab 3-i-3-vi 3.1 Tab 3.1-1-3.1-4 Fig.3.1-1-3.1-11 3.2 Tab 3.2-1-3.2-2 3.3 Tab 3.3-1-3.3-3 Fig.3.3-1 (Sht 1)Fig.3.3-1 (Sht 2)Fig.3.3-1 (Sht 3)Fig.3.3-1 (Sht 4)3.4 Tab 3.4-1-3.4-13 Fig.3.4-1-3.4-9 3.5 Tab 3.5-1-3.5-42 Fig.3.5-1 Original Original Original Original'riginal Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Pa e or Fi ure No.Issue Ps e or Pf ure No.Issue Fig.3.5-6 (Sht 2)Fig.3.5-7 3.6 Tab 3.6-1-3,6-13 Fig.3.6-1-3.6-5 3.7 Tab 3.7-1-3.7-4 3.8 Tab 3.8-1 3.9 Tab 3.9-1-3.9-15 Fig.3.9-1-3.9-5 3A Tab Appx 3A Title Page Chapter 4 Tab 4-i-4-iv 4.1 Tab 4.1-1-4.1-17 Fig.4.1-1 4.2 Tab 4.2-1-4.2-4 4.3 Tab 4.3-1-4.3-4 4.4 Tab 4.4-1-4.4-2 4.5 Tab 4.5-1-4.5-15 Fig.4.5-1-4.5-2 4A Tab Appx 4A Title Page Chapter 5 Tab 5-i-5-v 5.1 Tab Original Original Original Original Original Original Original Original.Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original 5.1-1-'5.1-24 Fig.5.1-1-5.1-12 5.2 Tab 5.2-1-5.2-12 Fig.5.2-1 5.3 Tab 5.3-1-5.3-4 5.4 Tab 5.4-1-5.4-7 5.5 Tab 5.5-1-5.5-4 5.6 Tab 5.6-1-5.6-11 Fig.5.6-1-5,6-2 5.7 Tab 5.7-1 5.8 Tab 5.8-1-5.8-2 5A Tab Appx 5A Title Page 5B Tab Appx 5B Title Page 5B-1-5B-18 Chapter 6 Tab 6-1-6-iii 6.1 Tab 6.1-1-6.1-41 6.2 Tab 6.2-1-6.2-2 6,.3 Tab 6.3-1-6.3-6 6.4 Tab Original Original Original Original ,Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original'riginal Original Original Original Original Original Original Original Original PVNGS ER-OL Pa e or Fi ure No.Issue Pa e or Fi ure No.Issue 6.4-1-6.4-2 6A Tab Appx 6A Title Page Chapter 7 Tab i 7-i-7-iii 7.1 Tab 7.1-1-7.1-27 7.2 Tab 7.2-1 7.3 Tab 7.3-1-7.3-4 7A Tab Appx 7A Title Page Chapter 8 Tab 8-i-8-ii S.l Tab 8.1-1-8.1-16 8.2 Tab 8.2-1-8.2>>4 SA Tab Appx 8A Title Page Chapter 9 Tab 9-i 9-1 9A Tab Appx 9A Title Page Chapter 10 Tab 10-i 10-1 10A Tab Appx 10A Title Page Chapter 11 Tab 11-i Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original Original 11>>1-11-4 11A Tab Appx 11A Title Page Chapter 12 Tab 12-i-12-ii 12-1-12-12 12A Tab Appx 12A Title Page Chapter 13 Tab 13-i 13-1 13A Tab Appx 13A Title Page Original Original Original Original Original Original Original Original Original Original Original Original Original PVNGS ER-OL FOREWORD I The engineering symbols used on pipin'g and instrumentation dia-grams (PAID's)are shown on figure F-1.Standards used for editorial abbreviations and symbols are the latest editions of the following American National Standards Institute publica-tions: ANSI-Y1.1, Abbreviations; ANSI-Y10.5, Letter Symbols for Quantities used in Electrical Science and Electrical Engi-neering;and ANSI-Y10.9, Letter Symbols for Units used in Science and Technology.

PVNGS ER-OL 1'his page intentionally blank PVNGS ER-OL'YSTEM DEMAND AND RELIABILITY units such as,PVNGS.The participants will continue seeking means to promote effectively prudent.electric energy management'ractices.

1.1.1.3 Power Exchan es Past and expected future net power sales and purchases outside the participants combined system, which are applicable at the time of annual peak demand, are presented in table 1.1-1.Both firm and nonfirm sales and purchases are tabulated; they con-tribute respectively to load and generation totals.Firm pur-chases are not included in the calculation of reserve require-ments as the reserve is provided by the seller.Reserve for I firm sales is provided on the participants'ombined system.1.1.2 SYSTEM CAPACITY System capabilities for each of the participants at the time of the annual peak demand for 1968 through 1988 are presented in table 1.1-8 along with a combined resources summary for all participants.

These resource schedules are the result of gen-eration planning that makes use of the load forecasting dis-cussed in section 1.1.1.2.Each participant is responsible for determining its own criteria for bulk generation planning, including the methodology for load forecasting.

The Reliability Council of the WSCC recently issued guidelines for the measurement of the adequacy of power supply, including as an alternative a reliability test, that uses a loss-of-load probability (LOLP)criterion of one day of outage in 10 years.Table 1.1-9 contains information showing the existing genera-tion capability as of January 1, 1978, for the Arizona-New Mexico Power Area and the Southern California-Nevada Power Area, respectively, as defined in WSCC.Table 1.1-10 is a summary of generation additions for these two power areas.1.1-9 PVNGS ER-OL SYSTEM DEMAND AND RELIABILITY

1.1.3 RESERVE

MARGINS The participants do not participate jointly in any single regional power pool.Each participant is responsible for establishing and maintaining its own reserve.Reserve criteria vary with the participant.

Each participant's reserve require-ments are listed below in outline form.A.Arizona Public Service Company: The APS generation reserve requirements are based on an LOLP criterion applied to the proposed Cactus Pool.The proposed pool includes Arizona Electric Power Cooperative, APS, EPE, Plains Electric Generation and Transmission Coop-erative, Public Service Company of New Mexico, and Salt River Project.Although formal operating agreements have not been established for this pool, the pool con-cept has been used in planning studies to establish APS installed reserve requirements.

The LOLP criterion is expressed in terms of the expected number of times in a specified period that the pool generating capacity fails to meet load.The criterion used by APS (in conjunction with the APS load forecast on May 31, 1978)is that the pool reserves shall be 16%of pool load from 1979 through 1981 and sufficient to yield an expected failure to meet pool load of no more than one occurrence in 3 years beyond 1981.This is sometimes referred to as a 1/3 LOLP index.A computer simulation that represents both forced and maintenance outages is used to compute the probability of failure to meet load on a daily basis, with the daily probabilities added to yield an annual index.Allocation of the pool reserves among indivi-dual utilities is in proportion to the sum of their peak load, plus twice their largest hazard.1.1-10 PVNGS ER-OL GEOGRAPHY AND DEMOGRAPHY Figures 2.1-4 through 2.1-12 illustrate the estimated residen-tial population located within a 10-mile radius of the plant site for the years 1980, 1982, 1984, 1986, 1990, 2000, 2010, 2020, and 2030.Data are.displayed at 1, 2, 3, 4, 5 and 10-mile distances from the centerline of the Unit 2 containment building, for the 16 compass sectors.Maricopa County popula-tion estimates provided by the Arizona State Department of Economic Security for the years 1980, 1982, 1984, 1986, 1990,'nd 2000 were used for all six radii calculations.

Maricopa County population projections for the years 2010, 2020, and 2030 were derived from the assumption that decennial growth rates from 2000 to 2030 would be held constant to the same rate of growth as experienced between 19'$0 and 2000.Population projections were calculated in the same manner as the 1978 estimated 5-10 mile radius population.

Listed below is a generalized Maricopa County age distribution for the year 2000.Percentage of Total Po ulation O-ll years 12-17 years 18-65+years 15 9 76 These figures were derived from data prepared by the Arizona State Department of Economic Security.2.1.2.2 Po ulation Between 10 and 50 Miles Figure 2.3-1 illustrates population settlements located within a 50-mile radius of PVNGS.Figure 2.1-3 illustrates the 1978 estimated residential population located between 10 and 50 miles of the plant site.Figures 2.1-4 through 2.1-12 show the estimated residential population located between 10 and 50 miles of the plant site for the years 1980, 1982, 1984, 2.1-5 PVNGS ER-OL GEOGRAPHY AND DEMOGRAPHY 1986, 1990, 2000, 2010, 2020, and 2030.Data are displayed at 10, 20, 30, 40, and 50 mile distances, from Unit 2 for 16 com-pass sectors.Population input data for Maricopa, Pinal, Yavapai, and Yuma Counties were prepared by the Arizona State Department of Economic Security and calculated according to the methodology described in section 2.1.2.1.Maricopa County age distribution projections for the year 2000, are given, in section 2.l.2.1.It is assumed that the same age distribution projections will apply to Pinal, Yavapai, and Yuma Counties.2.1.2.3 Transient Po ulation Transient population within a 10-mile radius of Unit 2 for (4 8)1978 is estimated to have been approximately 150 persons.This is a conservative estimate based upon the consideration that 100 people included in the total represent migrant farm workers.The emaining 50 persons are employed at the Hassayampa Cotton Gin, the Ruth Fisher and Arlington School Districts, and Gila Compressor Station.Table 2.1-3 lists employment centers within a 10-mile radius of PVNGS according to distance and direction from the plant site, number of employees, season of employment, and combined residential and transient population totals per sector.Construction phase manpower is discussed in section 8.l.2.1.3 USES OF ADJACENT LANDS AND WATERS 2.1.3.1 Land Use Within a 5-Mile Radius of the PVNGS Plant Site 2.1.3.1.1 Residential Land Use As indicated in section 2.1.2.1, residential land use within a 5-mile radius of the PVNGS site is low density, since most 2.1-6 Table 2.1-3 1978 TRANSIENT POPULATION WITHIN A 10-MILE RADIUS OF PVNGS Employment Center Farms Distance and Direction~

from PVNGS 3-10 Miles: N, NNE, ENE, E, ESEg SEg SSEg S, SSW, SW, WSW, WNW, NW NNW Number of Employees 100 (Migrant)Season of Employment High in Spring and Fall, Low in Summer, Winter Combined 1978 Residential and Transient Population Total, per Sector 3,032 Hassayampa Cotton Gin Ruth Fisher School District Arlington School District 6.0 Miles SE 7.5 Miles N 8.0 Miles SE 10 10 November-March September-June September-June 10 10 Gila Compressor Station 10.0 Miles SSE 25 Year-round 25 a.All measurements taken from Unit 2.

PVNGS ER-OL GEOGRAPHY AND DEMOGRAPHY of the area is zoned under either a Maricopa County Rural-190 (maximum density of one dwelling unit per 190,000 square feet)or a Rural-43 (maximum density of one dwelling unit per acre)land use classification.

There are two trailer parks located within a 5-mile radius of PVNGS: the Nuclear Trailer Park, and the You and I Trailer Park.The Nuclear Trailer Park is zoned under a Maricopa County Residential-5 land use classification which is defined as a maximum density of one dwelling unit per 1000 square feet.The You and I Trailer Park constitutes a nonconform-ing land use as the area in which it is located is zoned as a Maricopa County Rural-43 land use classification.

(9)From October, 1977 to October, 1978, the Nuclear Trailer Park expanded from 7 trailers and 10 people to 65 trailers and 97 people.Short term plans call for adding 5 acres to the park which will add an additional 60 trailers and bring the total population up to 187 persons.(10)There was no expansion of the You and I Trailer Park between October, 1977 and October 1978.Development plans call for expansion in 10-unit increments with a maximum expected devel-opment of 100 units.'ll The proposed Phoenix Valley West development is not active because the project developers are suspended from further action by the Arizona State Department of Real Estate.To date, there are only six homes constructed in the area.1 I 2.1.3.1.2 Commercial Land Use Within a 5-mile radius of PVNGS there are four commercially zoned parcels located along Buckeye-Salome Road, either at or near its intersection with Wintersburg Road.These parcels are zoned as either a Maricopa County Commercial-2 (intermedi-ate)or Commercial-3 (general)land use classification.

~(9)~I 2.1-8 PVNGS ER-OI h GEOGRAPHY AND DEMOGRAPHY east-northeast of the plant site.All training areas are located well beyond a 10Žmile radius of the plant site.2.1.3.3.2.2 Williams Air Force Base.Figure 2.1-14 illus-trates the location of Williams Air Force Base and some of its Military Operations Areas (MOA).Williams Air Force Base is located approximately 70 miles east of the plant site.Wil-liams Air Force Base MOAs are located to the north, east, and south of the base, well beyond a 50-mile radius of the plant s1te~2.1.3.4 A ricultural Land Uses Within a'0-Mile Radius of the PVNGS Plant Site 2.1.3.4.1 Radiological Dose Pathways Table 2.1-5 presents the distance from Unit 2 to the nearest resident, milk cow/cattle, milk goat, and vegetable garden (greater than 500 square feet).This information is based on an aerial survey backed by ground verification made in October, 1978.Within a 5-mile radius of Unit 2, none of the milk cow or milk goat locations are dairy operations, and no vegetable gardens greater than 500 square feet were observed.Similar information for Units l and 3 is provided in table 2.3-30.2.1.3.4.2 Crop Production Within a 50-Mile Radius of the PVNGS Plant Site Table 2.l-6 provides a summary of the l977 annual agricultural production of Maricopa and Pinal Counties.'able 2.1-7 (25,26)provides a breakdown of 1977 vegetable production yields within a 50-mile radius of PVNGS.In order to produce this information, it, was assumed that (1)the spatial distribution of cropland has not changed since October, 1973, when aerial photography was taken as the basis for compiling the~Cro land Atlas of Arizona and (2)approximately 65%of the 2.1-15 PVNGS ER-OL GEOGRAPHY AND DEMOGRAPHY Table 2.1-5 DISTANCE TO NEAREST RECEPTOR WITHIN 5 MILES AS MEASURED FROM THE CENTERLINE OF THE PVNGS UNIT 2 CONTAINMENT BUILDING, IN METERS Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Residence 2640 3288 3408 4656 5280 5808 7080 6960 5112 6360 10416 3552 3984 Milk Cow Cattle 5064 6840 5760 8064 7584 10416 8352 Milk Goat 10200 Vegetable Garden>)500 Maricopa County and approximately 2%of the Pinal County vegetable production occurs within a 50-mile radius of PVNGS.Table 2.1-8 lists normal planting and harvesting dates in Maricopa and Pinal Counties.No agricultural production occurs in those areas of Yavapai and Yuma Counties located within a 50-mile radius of PVNGS.'2.1-16 PVNGS ER-OL GEOGRAPHY AND DEMOGRAPHY The yields assumed that: o All beef cattle feedlots located within Maricopa County are constantly filled throughout the year at their maximum capacity All beef"cattle feedlots located in Maricopa County operate on a six complete turn-over cycle annually The same percentage of cattle, hogs and sheep grown in Maricopa County are also slaughtered in Maricopa County Hogs and sheep are raised in the same sector as beef cattle Forty-seven percent of the total liveweight of beef cattle is destined for human consumption o'Seventy-five percent of the total liveweight of hogs is destined for human consumption o Forty-five percent, of the total liveweight of sheep is destined for human consumption Range cattle raised within a 50-mile radius of PVNGS are excluded from consideration as steers and heifers not used for herd replacement are shipped to feedlots prior to slaughter-ing.It is assumed that the number of cull cows and bulls'hipped directly from the range to packing houses is negligibl The feeding regime of beef cattle located within a 50-mile radius of PVNGS is as follows: for the period from March 1 to June 1, the feeding regime consists of a blend of 95%stored feed and 5%green chop.During the remainder of the year, cattle are fed a diet that is primarily stored feed.Seventy-three percent of the beef feedlots located within a 50-mile radius of PVNGS are considered to be located in either lj congested areas where public improvements are adversely affected or 2)rural areas where public improvements may be 2.1-31 PVNGS ER-OL GEOGRAPHY AND DEMOGRAPHY adversely affected.It is expected that as Maricopa County becomes increasingly more urbanized, a number of the feedlots will have to be relocated to the strictly rural parts of the county.2.1.4 2.3.REFERENCES U.S.Geological Survey, Arlington, Arizona Quadrangle, Scale 1:62,500 AMS 3450 IV-Series V798, 1962.U.S.Department, of Commerce, Bureau of.the Census, 1970 Census of Po ulation: General Po ulation Characteristics, Report PC (1)-B4, Arizona, July 1971.Arizona Department of Economic Security, Office of Planning, Economic-Demo ra hic Pro ection Model, Revised Po ulation Distribution Pro'ections, July 6, 1978.4.5.6.7.Cullinane, V.C., Research Chief, LMI, Research and Analysis, Arizona Department of Economic Security, Phoenix, Arizona, Letter to Higman, S.L., NUS Corporation, January 11, 1979.Bowen, J., Gin Superintendent, Anderson Clayton Company, Phoenix, Arizona, Letter to Higman, S.L., NUS Corporation, January 9, 1979.Sanders, G.E., Head Teacher, Ruth Fisher School, Tonopah, Arizona, Letter to Higman, S.L., NUS Corporation, January 10, 1979.Kirk, E., Business Manager, Arlington School District, Arlington, Arizona, Telephone Conversation with Higman, S.L., NUS Corporation, January 5, 1979.8.'cFall, J.H., Director, Public Relations and Advertis-ing, El Paso Natural Gas Company, Houston, Texas, Letter to Higman, S.L., NUS Corporation, January 20, 1979.2~1 3 2 PVNGS ER-OL GEOGRAPHY AND DEMOGRAPHY 29.Collier, R., State of Arizona Dairy Commission, Phoenix, Arizona, Letter to Higman, S.L., NUS Corpora-tion, June 15', 1979.30.Lough, O.G., Agricultural Extension Agent, Maricopa County Cooperative Extension Service, Phoenix, Arizona, Letter to Higman, S.L., NUS Corporation, December 18, 1978.31.Loughead, H.V., Agricultural Extension Agent, Maricopa County Cooperative Extension Service, Phoenix, Arizona, Personal Interview with Higman, S.L., NUS Corporation, October 13, 1978.32.Duewer, L.A., U.S.Department of Agriculture, Econom-ics, Statistics and Cooperative Services, Commodity Economic Division, Washington, D.C., Telephone Con-versation with Wedgle, S.A., NUS Corporation, April 23, 1979.33.Mikles, Dr., Assistant State Veterinarian, Disease Control Section, Arizona State Livestock Sanitary Board, Letter to Higman, S.L., NUS Corporation, October 30, 1978.2.1-35

PVNGS ER-OL METEOROLOGY and local meteorological, conditions (including atmospheric diffusion) expected at and in, the vicinity of PVNGS.Figure 2.3-1 indicates the location of PVNGS and the meteorologi-cal data collection stations used to assess the local meteo-rology.Table 2.3-3 more specifically provides the locations and a brief topographical description of the offsite meteo-rological stations.2.3.2.1.1 Wind Direction and Speed Onsite monthly and annual wind roses for the 35-foot and, 200-foot level's are presented in figures 2.3-2 through 2.3-6 for the 5-year period August 13, 1973 through August 13, 1978.Wind roses are provided monthly for the 5 years combined as well as annually for each individual year and the 5-year sum-mary.Wind direction distributions are similar for both levels on the tower and for all 5 years of data collection.

Prevailing winds are from the southwesterly sectors on an.annual basis and during the spring and summer months.During the fall and winter months, however, prevailing winds are from the east and northeast sectors.Shown in figures 2.3-7 through 2.3-9 are monthly and annual wind roses for Phoenix for the same 5-year period as the onsite data.For comparison to the 5-year period of site data, annual 5-year wind roses for Phoenix (1960 through 1964), Gila Bend (1984 through 1953), and Luke AFB (1960 through 1964)are pre-sented in figure 2.3-10.Comparison of the wind roses for the var'ious time periods and locations shows the topographic influences on predominant wind flows and the inherent differences in wind distributions between the recording stations.Prevailing winds at Phoenix are east and west along the axis of the valley in which the airport and city are situated.The effect of the north-south oriented White Tank Mountains, immediately to the west, of Luke AFB, are evident, 2.3-13 PVNGS ER-OL METEOROLOGY L Table 2.3-3 OFFSITE METEOROLOGICAL DATA COLLECTION STATIONS USED TO ASSESS THE LOCAL METEOROLOGY

.Station Distance From Site (Miles)Direction Local Topography Phoenix (Sky Harbor International Airport)Luke Air Force Base Gila Bend Airport Buckeye Litchfield Park 50 33 34 18 32 ENE ENE SSE ENE Flat;east-west valley Flat;mountains immediately to the west Flat;scattered hills in the area Flat Flat 2.3-14 PVNGS ER-OL EXTERNAL APPEARANCE shown on the site general arrangement plan in figure 3.1-4.Figure 3.1-7 shows a typical power block in isometric form.C Figures 3.1-8 through 3.1-11 illustrate the four main eleva-tions of the power block.3.1.3.1 Power Block Com lex Each power block complex consists of the following major structures:

o Containment building o Auxiliary building o Fuel building o Control building o Turbine building o Diesel generator building 0 Radwaste building o A laundry and decontamination facility at Unit 1'nly The containment is a cylindrical concrete structure with a hemispherical dome and is the highest part of the power block.The containment is surrounded by lower power block structures.

With the exception of the turbine building, all other structures of the power block are constructed of concrete.The turbine building consists of a structural steel frame enclosed with con-crete base and metal siding walls of a color to complement the other structures within the complex.

PVNGS ER-OL EXTERNAL APPEARANCE The locations of the release points for gaseous wastes are illustrated on figure 3.1-9.3.1.3.2 Other Structures Each power block is served by cooling towers located west or northwest of the power block.Other structures in the plant area include the administration building, the guardhouse, service warehouse building, water reclamation plant, switch-yard structures, and miscellaneous ancillary buildings.

These structures have low silhouettes.

3.

1.4 CONCLUSION

Because of the distances of the vantage points from the station and the high Palo Verde Hills backdrop, the visual impact to the public is negligible.

No properties listed in the National Register of Historic Places exist.near the vicinity of the site, therefore there is no visual or aesthetic plant impact upon these properties.

3.1-4 PVNGS ER-OL TRANSMISSION FACILITIES 3.9.1.3.2 Project 3 This route was divided into the nine segments indicated in figure 3.9-2.Each segment is discussed separately.

The transmission line will follow an existing 345 kV line except through segments 8 and 9, which will modify the visual impact of this additional 345 kV line.Segment 1 and segment 2 will not intersect frequently traveled public roads.Segment 3 will have a low visual impact on the agricultural land located at Highways 70 and 75.The presence of a second power line could also detract from the scenic Gila River Valley.Aesthetic modification could also occur at the points where the line crosses.these.The major part of segment 4 will cover isolated desert lands.Visual interference to motorists will be almost nonexistent.

However, the line does intersect U.S.Highway 70 north of Lordsburg.

Segment.5 will create only slight visual effects from frequently traveled public roads.The initial 3 to 5 miles of the eastern portion is within 1 to 2 miles of the highway.However, tele-phone wires and poles immediately border this highway, already obstructing the view of the motorist.The remainder of this segment is in a very remote area beyond the view of the motorist.Segment 6 will have the greatest aesthetic impact where the line will cross State Roads 26 and 260 about 2 miles north of Deming.For the greater portion of this segment, infringement on the landscape will be minimized by the remote location of the line.Segment 7 will intersect I-10 at a point 2 miles west of the Luna-Dona Ana County line.Some visual disruption is likely to occur at this intersection point.Segment 8 will not cross frequently traveled public roads.In segment 9 the Anapra area will be subject to the highest visual modification from frequently traveled public roads.3.9-9 PVNGS ER-OL TRANSMISSION FACILITIES 3.9.1.3.3 PVNGS To Devers Information concerning the PVNGS to Devers line is contained in the U.S.Department of Interior Bureau of Land Management and U.S.Nuclear Regulatory Commision Final Environmental Statement, Palo Verde-Devers 500 kV Transmission Line, February, 1979.Descriptions are presented for preferred and alternate routes.Final route approval has'not been received from the Bureau of Land Management.

3.9.1.4 Structures 3.9.1.4.1 Project 1 Structures Figure 3.9-3 illustrates the structures which will be used for the Project 1 Lines.The transmission towers will be of open lattice-type construction, with dull finish.Grey shaded suspension insulators will be used on the towers.These features will tend to make the transmission lines less visible from a distance against the desert backdrop, and the blending effect.of the lattice construction and color help make the line less noticeable when visually compared with other man-made features which are more opaque, or of a more contrasting color.The self-supporting steel lattice towers average approximately 129 feet high.The towers used on straight portions of the transmission line are tangent structures, which support the conductor vertically and absorb other loads such as wind forces or ice loads on the conductor.

This is the basic type of tower used on the line.Each tower will have five attachments for cables.There will be three sets of conductors (a total of at least six conductors) with each set attached to a separate point on the tower.Two statics will be suspended above the three sets of conductors.

The average length of conductor span from tower to tower will vary from approximately 1280 to 1650 feet.3.9-10 PVNGS ER-OL 5.5 EFFECTS OF OPERATION AND MAINTENANCE OF THE TRANSMISSION AND CONVEYANCE SYSTEMS 5.5.1 TRANSMISSION SYSTEM J The transmission systems associated with PVNGS are described in section 3.9.1.Information presented in ER-CP Section 5.6.1 and the FES has been updated to reflect final line routing and the addition of a transmission line from PVNGS to Devers Sub-.station in California.

The impacts expected due to operation and maintenance of the Projects 1 and 3 transmission systems are updated and summarized in this section.Information con-cerning the expected impacts of the PVNGS to Devers line is presented in the U.S.Department of Interior Bureau of Land Management and U.S.Nuclear Regulatory Commission Final Environ-mental Statement, Palo Verde-Devers 500 kV Transmission Line, February 1979.Descriptions are presented for preferred and alternate routes.5.5.1.1 Transmission S stem Im acts 5.5.1.1.1 Maintenance Program Maintenance programs are not expected to have significant environmental effects, however, those environmental effects that I do occur from maintenance will be short term.Transmission-system construction practices will result in stable open-field associations and therefore minimal right-of-way maintenance.

Where maintenance clearing is required the biotic association as a whole will not be adversely affected.Maintenance will be conducted on an as-required basis.Fre-quent ground access to the transmission lines for maintenance will not be required.The same environmental precautions that were taken during construction will be taken.for non-emergency maintenance and repairs.The comfort and safety of local res-idents will be provided for by controlling noise and dust created by maintenance-vehicle traffic.5.5-1 PVNGS ER-OL EFFECTS OF OPERATION AND MAINTENANCE OF THE TRANSMISSION AND CONVEYANCE SYSTEMS Access roads built during the construction phase of the transmission systems ordinarily will not be maintained.

Herbicides and pesticides will not be used for maintenance of transmission-system corridors.

Soil sterilants may be used within*the confines of substations to control weed growth.5.5.1.1.2 Electrical Effects No adverse effects resulting from corona or electrical field effects are expected.Standard procedures will be followed to eliminate the interference with communication or railroad systems.Grounding systems will be installed to handle cur-rents that occur under fault conditions.

5.5.1.1.3 Ecological Resources The effects of transmission-line operation and maintenance relate primarily to the access roads that create increased access to areas that were previously difficult to reach.The operation and maintenance activities'ill have very little, if any, adverse effects on terrestrial and aquatic systems once construction activities have been completed.

In sensitive areas with species such as Gila monster, desert tortoise and bighorn sheep, and in areas vegetated with endan-gered and threatened plant species, fences and gates will be placed appropriately to inhibit unauthorized off-highway vehi-cle use of access roads.It is expected that no changes of long-term significance to the area's fauna will result from operation and maintenance activities.

5.5.1.1.4 Cultural and Paleontological Resources Cultural and paleontological resources are likely to be impacted the greatest during the construction phase of the.project.Access and spur roads will be closed as required after construction to minimize relic hunting.5.5-2 APPLICANT'PREOPERATIONAL ENVIRONMENTAL PROGRAMS the filters and I-131 activity on the charcoal will be deter-mined weekly.The gamma spectrum will be determined once per quarter.6.1.5.3.2 Direct Radiation Ambient external radiation will be measured by thermolumi-nescent dosimeters (TLDs).Quarterly doses will be determined at each of the locations where air samples are to be taken.To estimate annual fading characteristics caused by climatic factors, a third dosimeter will be placed at locations 1 to 5 noted in table 6.1-4.TLDs will also be placed: A.B.On the west site boundary, 1 mile west of Unit 1 Near the northeast corner of the site boundary, 2 miles northeast of Unit 1 C.On the east site boundary, 1.5 miles southeast of Unit 1 6.1.5.4 Waterborne Pathwa Preoperational monitoring of offsite surface waters is not planned.6.1.5.4.1 Groundwater Groundwater samples of the regional aquifer will be taken quarterly from the two onsite wells.Drinking water will be sampled from wells at.Ward Road (Desert Farms Well No.1), in Wintersburg (Winters Wells), and at Buckeye Road and 355th Avenue.These samples will be monthly composites of weekly grab samples.Gross beta and gamma spectrum analysis will be performed monthly;tritium will be determined in quarterly composites.

Water from the community drinking water supply at Gila Bend will be taken for analysis as a control.6.1-33 PVNGS ER-OL APPLICANT'S PREOPERATIONAL ENVIRONMENTAL PROGRAMS 6.1.5.5 In estion Pathwa 6.1.5.5.1 Milk The grass-cow-milk or grass-goat.-milk pathways for radioiodine will be monitored.

Milk is produced at one dairy in the region about 6 miles east of Unit 1 as noted in section 2.1.3.While the dairy cattle are out on pasture or are being fed green chop, samples will be obtained at least twice per month.Otherwise, the samples will be obtained at least monthly.Gamma spectrum and I-131 analyses of each sample will be performed.

There are isolated head of cattle within 5 miles of the plant;however, it appears that most of the cattle are on stored feed and are not grazing on pasture.At the time of implementation of the preoperational program, it will be determined, for analytical purposes, if any milk can be obtained from cows or goats within a 5-mile radius of the site.Potential milk locations will be surveyed annually during the growing season to determine whether any milk is being produced for human consumption.

6.1.5.5.2 Fish and Invertebrates t There are no fish or invertebrates to be sampled.6.1.5.5.3 Food Products If available, locally grown leafy vegetables will be sampled in Wintersburg north and northeast of the plant site.Gamma spectral analyses will be performed on the edible portion;Control samples will be taken at suitable locations.

An annual census will be conducted during the growing season to locate the nearest gardens larger than 500 square feet growing leafy vegetables in each of the 16 meteorological sectors, out to a distance of 5 miles from the plant..6.1-34

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