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HomeMy WebLinkAbout81 - 25 PLANNING COMMISION MINUTES & AGENDAS MARCH 10, 1982 8 OF 9MA141IOLE MESA. M9SOZOIC 2•fETAMORPHIC METASEDINENTARy MxtLIAMP9RE mm MUDVLOW NOLCANIc) MVA Mw Ob A Subsurface structure, large onout:Sja or a man to enter,, spaced alon Elle Manholes ttrC intervals depending. the route at design of the cable system, type 10.1 provide an underground location cable installationand for Join for cables, joining A very broad, flat—topped, usually isolated hill or mountain 'bounded on at least- one side by a stIIoep cliff or slope. A geologic era from 23G,000;()00 to 530000,000 years before pg'evont;. One of the 3 major classes of rock resultingrock, the from preexist:Lng rooks Which have been changed (metamorphosed) by heat, pressure and/or mineralizing "solutions ox comb nations of the above: A metamorphosed sedimentary rock `whic'h. retains most of its original sedimentary eharacteristirs, l/1000th of one ampere (the basic unit. for meacurement of current), /1000th of one meter (,04 inch), A deposit composed chiefly of fragments of volcanic materials transported and deposited as a water saturated mass, Megavolt -amperes, apparent unit of one million Unit of power Megawatt, one million wags; 1,000 kilowatts. Outside diametotOf pipe size or conductor, Multiple grounded wire or wires placed above phase condue.tot$ fo of interce tin` r the purpose p g direct lightning strikes in order to protect the phase conductors, AL7 PALEOZOIC The geologic era thought to have covered the span of time between 570 and 230 milll,on years ago, PAYLOAD The useful load that a vehicle of trans- port can carry. PHASE SPACING The distance between the phase conductors. PHOTOCHEMICAL PROCESS Chemical changes brought about by the radiant energy of the rain a0tiiif upon various Polluting substrtric:.c}a; result: is photochemical smog. PLAT; TECTONICS A theoretical global modej. in which the earth's crust is subdivided into 10 to 25 large plates, each of which "floats" on a viscous layer within the mantle. The Plates are propelled by an upward and out- ward movement of submarine basalts, called sea floor spreading, from oceanic ridges. PHYSIOGRAPHIC PROVINCE A regional! parts of which are similar in geologic structure, landforms and climate. PLEISTOCENE The geologic epoch thought to have covered the span of time between 2-3 million years ago and 1.0,000 years ago. PLIOCENE The geologic epoch thought to have covered the span of time betwcan 12 and 2"3 million years ago. - PRESSURE LIMITING STATION Equipment that; Prevents pressure in a pipeline from exceeding the maximum allowable operating pressure by con- trolling the flow of gas. PSIG Pounds per square inch gauge (1,.e, above atmospheric pressure). P'JLL SITE are set up for pul,l:tttg conductor. Q0ARTS PORPHYRY An igneous rack in wh,Lch quartz crystals are significantly largor than other minerils and plainly visible to the unaided eye.' A-8 REVEGETATION REWORKED RIGHT-OF-WAY RIPARIAN SERAL (STAGES) 8EDI `1ENTAR SEISMICITY SWENTINITE SHEARED (SHEAR ZONE) SREAVES SLASH SLAT9 The restoration of the plant life or total plant cover subsequent to certnjjj, construction activities. A sediment, fossil, rock fragment; of other geologic material that tae been, removed or displaced by natural, agents from its place of origin and incorporated in a younger formation. Strip or corridor of Land, which is acquired (as an easement or outright ownership) for the construction and operation of a pipeline or electria overhead line. Pertaiw.ting to areas adjacent to a stream or other body of water. Developmental temporary communities in a sere; not fixed. One of the 3 major classes of rock. A rock resulting from the consolidation of various size fragments derived from weathering of older rocks and transported by and/or deposited by water, air or ice. The activity of an area regarding earthquake or earth vibration. A metamorphic rock formed from ultra basic rocks b-,, hydrothermal alteration of magnesium -rich silicate minerals to form' various minerals of the serpentine group.. A tabular zone of rock that has been crushed and broken by manly parallel fractures due to shear strain.: A 'grooved wheel., placed on structures daring the conductor stringing operation. Tree limbs or bru h cut down during the clearing of the right-ot-way, A compact, fine-grained, mratamorphic rock formed from rocks like shale which can be parted into slabs of varying thickness: A4 .'! Ydn�i/lm�wha7nll!.1lItL�W!!!: .r�YN;u� .��1t3AS"�r S>OPBWASH SOCK LINE SPAN LTNGTH STRIKE STRINGING SUBCLIMAX SUBDUCTION ZONE SUBSTATION/SWITCHYARD SUCCESSION, SECONDARY SUSPEN81 INSULATOR Soil and rock material that is or has been transported down a Mope by mass wasting assisted by running water not confined to channels, Steel cable used to pull in conductor under tension. Horizontal distance sepMM&,'ung two successive supporting str,4.1c°.teres of a transmission line. The direction or trend their a structural surface, e.g., a bedding or Fault plane, takes as it intersects tho, horizontal. 'Payout and sagging of el.actrical transmission lines, A stage in a community's development$ i.e., succession (q.v.) before its final climax stages; a community simulating climax because of its further development being inhibited by some disturbing .factor (e.g. fire, poorsoil). Formed when an oceanic plate (see "plate tectonics") is thrust beneath a continental plate. The underthrusting causes very complex deformation and intermixing of the rocks derived from the two adjacent plates. An electric power facility containing circuit switching devices (such as circuit breakers and/or air ,switches) and/or' transformers. Refers to succession which occurs on formerly vegetated areas (Le. having an already developed soil) :after disturbance or clearing, A string of suspension -type insulators' assembled with the necessary attaching hardware and designed to support, in a generally vertical direction, the weight of the conductor and. to afford adequate insulation from the tower. A-10 SYMIIETRICAL SYNCLINE TECTONIC MELANGE TENSIONER TE MINATION TERRACE THALWEG THERMAL SBLECT BAUVILL'OR THBRMAL SAND TRRRE PHASE The correspondence in size, .farm, and arrangement of parts on opposite sides of a plane, bine, or. point, A fold, concave upward, the core which contains the stratigraphica'lly younger rocks. A heterogeneous mixture of rocks of diverse origins and geologic ages (tectonic inclu- sions) enclosed in a pervnit:Lvely sheared matrix. Believed to have been formed by the intense deformation of subduction zones: A machine which keeps evert predetermined tension on the conductor an it is installed. This machine is used in. the technique of tension stringing. Formerly called "pothead". This latter term is being dropped £rom.usage by the: latest proposed. IEEE Standard, A cable termination is located at the terminal ends of an undcrgroun.d cable system and is usually located abow ground, The termination serves to prevent entrance of the external environment into the cable and to maintain the pressure, if any, within the cable system. They also control, by design, the electrical stresses so that external overhead connections may be made to the cable system such as at substations, generating plants_; etc: A large bench or step-like ledge breaking the continuity of a slope. Mean thread of water flow, A special backfill material that is imported and pUced around the cable system in order to improve the heat transfer from the cables to the earth; the purpose being to improve the power transmitting capability of the system. Method of using three phase conductors to transmit electrical energy econoial- call y - TOPOGRAPHY TOWER TRANSITION STATION TRIBUTARY STREAR TUFF TUFFACEOUS TUNNEL EFFECT TURBIDITY UNCONFOR ABL9 VOLCANIC ROCX VOLCANIC ASH (TUVV) VOLTAGE, OPERATING WHEELiNG Configuration of a land surface including its relief and p0431tion of natural and manmade features. The mechanical structures used to support the transmission line above ground An aboveground installation where a transition is made from an under- ground transmission kine to aril overhead transmission line or vice versa. A stream feeding a larger stream, or lake. A compacted deposit of volcanic aslr and dust that may contain sand or clay. Said of sediments containing up to 50/ volcanic ash and dust. A linear channelizing of a view, as in a distant one point perspective. Condition of water resulting from sus- pended matter', water is turbid when its load of suspended material is conspicuous. Lack. of continuity Of deposition between rock strata, in c011ttict corresponding to a period of nondiposition, weathering, or erosion either subaerial or subaqueous Prior to the deposition of younger beds, and consequently to a gap in the strati - graphic reoord A generally finely crystalline or glassy igneous rock, resulting from volcanic. aati0h at or near the earth's'surface. Unconsolidated or consolidated fine PYtoclastie material. The voltage at which a transmission lige operates. One utility company or agency transmitting electrical power for another 'company or agency. A-1.2 APPENDIX B EQUI__ P,_ M�NT TO BE USED,• TYPE DURATION a. Foundations 2 1/2 ton pickups 5 months 3 4x4 crew cab power it wagons wagons Personnel transportation 2 5 ton trucks ii 1 Truck mounted auger 5 ton trucks 1 250 CF'M ComprF ssor 2 3 Concrete mixer trucks Matezial hauling 1 20 ton trailer 11 1 Tiltbed trailer it 1 Tool Van ;; 1 Mobile Office of PURPOSE Personnel transportation Personnel transportation and tool carriers It Excavati.n& f0l0dati nns For dtiving air t cols Delivering concrete for foundations Hauling misc. materials Hauling equipment Tool storage Supervision and clerical office b. Strt`cture Z 2_ 1/2 toll piCltllpe 4x:4 crew cab power 5months 11 Personnel transporta.ti:on wagons Personnel transportation 2 10 ton trucks ii and tool carriers 2 5 ton trucks ii Delivering structures 2 2 ton trucks ii Matezial hauling 2 20 ton trailersii i; 2 30 ton mobile cranes It For assembly a0d erection 1 1 50 ton mobile crane it Of Rtructures Erection 1 Tool van ii. Of structures Tool Mobile office it storage SuP(WV1sion and clerical, of;fS;,ze c+ Conductor installation and the construction period, temporary work to maintain service during 2 Trailer mounted 5 1p�t?; Months Co,�riuctor installation n 2 Truck mounted 3 reel take up units ii Conductor installation and 1 Line truck it teirtiorary wotk ;r l 5 ton truck li 11 2 Highway ,tractors 1 Low bed trailer ►i ii 2 2 ton trucks ri 2 Crew cab 4x4 p tckups it ii 3 1/2 ;tots pickv'pa it It (COURTESY APPENDIX B _(CONT.) c. Conductor installationon a(Cont.) n to temporary work to maintain service during the 12 Conductor reel carets 5 1/2 months Conductor installation and temporary work 2 Crawler tractors " 11 1 Truck mounted auger 1 Puller, drum type,, truck mounted 1 Tool 1 Mobile office it it Tool storage offce trailer Supervision and clerical office APPENDIX C General Specifications of the Proposed Transmission Tine 1.. Tine length " Approximately 23 miles (37.0 kin) 2. night -of -Way Width 100 feet (30.5 m) (nonparallel section.) 103 feet (31.4 m) (parallel section to close right- of-way gap) 3. Type of ConductGe 61 strand aluminum 4. Size of Conductor 11113,000 circular mil (6 956.3 em2), 1.216 inch diamoter 5. Line Capacity* Summer normal - 317.3 ttmvn at 230 kv Summer emerg€rtcy - 386.3 mva at 230 kv 6. Type of Structures Double circu?t lattice steel structures 7. 'Dimensions at Base Suspension;** 21 x 21 ft to 35 x 35 ft (6.4 x 6.4 m to 10.7 x 10.7 m) Dead endt*** 21. x 21 ft to 35 x 35 ft (6..4 x 6.4 m to 10.7 x 10.7 m) S. Height of Structures 90 to 155 ft (27.4 to 47.2 m); typica'.ly 135 ft (412 m) 9. Span Lengths 500 to 2,000 ft (152.4 to 605.6 m), generally about 1,200 feet (365.8 m) 10, gstimar-ed Cost $4,300,000 (ex"lut b right-of-way) 11. Overhead Ground Wires Two - 7 strand #8 AWG a'lumoweld conductors each approximately 3/8 inch (9.5 mm) in diameter on the first 1..5-2 mi (24-3.2 'km) from Melones Powerhouse only *'Thermal limit. ** Suspension taaers used on tangents and small running angles ,tieFti1 bead end toners used on upstrain points and larger line angles 9PPENDIX D SCIENTIFIC NAMES OF ANIMALS AND PI -AMS Common Name Scientific Name Mam=ls Virig n a oppossum Didelphis ;marsuoialis Shrews Sorex sp. Black -tailed jackrabbit Le -Pus californicus Audubon cottontail. Sylvilagus audubonii Brush rabbit Sylvila gus bachman3 Beechy ground acpuirre? {3tospermophilus beecheyi Botta Locke* gopher Thomomys bottae Beaver Castor canadensis Muskrat (?cdatra zibethicus Coyote Canis latrans Gray fox Urocyon cinereaargenteus Kit fox_ r 1pes crotis m* -, cRaccoonProcyon iotor in Mustela vison Long-tailed weasel F4ustel.e frenata Striped skunk Mephitis mephitis Spatted sh€znk Sniiogale gracilis River otter lutra canadensis Bobcat I.y rufus Black -tailed deer adocoileus hemicnmas c^luwbianus Birds Scothern bald eagle Haliaetus leuccceohaius leucocephaius Anthony green heron Batorides virescens anthonyi Canada goose Branta canadensis Whit- Fronted goose Anser albif'rons Snow goose Chen hyperborea D-1 N X LR SCUMTIFIC ITA14ES OF ANIIDIALS ATID pLANTS Common Name Scientific Name Birds (continued) Mallard Anas platyrhynchos Gadwall Anas strepera Pintail Anas acuta Green winged. teal Anas carelinensis American widgeon Mareca americana Shoveller Spatula clypeata Wood ducts Aix sponsa Canvasback duck Aythya valisineria Scaups Aytha sty. h' -=r Scc 2�cephala alteola oeta_rs Y.--lanitta s -o. Ruddy duce C__yura jamicenss r Turkey Vulture N; ,azhartes aura Red-tailed hawk Buteo lama censis Swainson hawk BT,-teo swainsoni Marsh hawk Circees cyaneus American osprey Pandion haliaetus carolinensis American Peregrine falcon Falco peregrinus anatum California (Valley) quail Lophortynx call -fork ca Mountain quail Oreotyx pieta Rin;-neeked pheasant Phaisanus colchicus Virginia rail Rallus liniicela Lora Porvana carolina Yellow rail Coturnicons novebz:�razemsis Black rail Laterallus 4ar_ce._. Gallinue Gallinula chlcropas D-2 s==ue :CIENTIFIC N MES OF ANMALS AND Pj-,APTPS Commm -Ramr Scientific Name Birds (cov timed Coot Ful.ica americana Killdeer Charadrius vociferus Band -tailed pigeon Columba fasciata Mlcu nin g dcvta Zenaidura marcoura Burr owing *l SpeotYto curaicu aria Acorn (California) woodpecker Melanerpes formicivorous Western='�z��bird Tyrannus verticalis 'fockin 't rd g y PTimus polyglottics Western bluebird Sialia mexicana TT --Stern meadowlark Sturnella neglacta Red -winged blackbird Agelaius phoenioeus Bullock oriole Icterus bullock Brewers blackbird ERIphagus cyanocephalus Aaphibiane Western spadefoot toad Sc; uhiopus hammondi California toad Bufo boreal haloghilus Ihillfrog Rana catesbeiana Reptiles Western. d Clem:::ys Northwestern fence lizard Scelor;orus occidentalis occidentalis California horned lizard Phrynosoma eoronatum frontale D-3 m 3 9- ...� L+�l -tells + j�j�n1 I�yl JT.f - D vs�y Y°FsJqy ST,PUL-'In S2 iat �3i ?2? Lj1 7538 i 3S ua z S nTI,-Ijda3OUCZ UOPOaP4dOl-*l Pvau Pam dxe3 TT zaupXT:�2 T-laa ° �? = I✓ Iaa r z I * �o aSIIciI2 v ^i3 iD ptails u-rjp-eGatn - gsTj - - snuu2aso sT-r.TJT.A ST.TV 010 WISUsaT::+-ex 01,T- RcT u.zaT�-aDkl spIdoam-eTi,l G31aus aa' x aII jajiq-uy3 seaiaaTawe m s 4do. la ail �a���� ��� �. T310OPPnx a�n a��i. sl do � I� C,xLuSdTq�t uir_br.of up.S SttSajja4u7;a T q xagI� - aC 3 Common Name Scientific Fish (eOni=itiaed )lhite catfish �ctalurus catus Striped bass Roccus saxitilis Smaj1 mouth black bass Micropterus dolomieui i= rr�emcuth black bass 14i_crsPterus salmoides Sawfish Lepomis S-D.. Rlazegill sunfish Lepomis mcrochiru�; Sacramento perch Archoglites ?nterruptus Gattids "ottus sir Plants tl IIi�er Pine Pinus sabiniana California bay Umbellularia californica Black walnut ! u Tans califo2nica Interior lige oak Qaercus w'i.slizenii Valley oak Quercus lobata Blue oak Quercus douglasi i Sycamore Platanus racemosa California vKeye Aesculus californica F"'emant cotterrWee3 auusz3pum_nti_ Red alder Alnus oreganuz or Sl.t1g Sci pus rdCS _aiBuZx4sZ gild cat Arena sp. Common reed Phr$gmites �e� F:� is Cattail Typha sp. D-5 sGIENrIFrC NAS OF AMMIS AND PLA14TS Goon Name Scientific Name Plants (continued Baltic rush Juncus balticus Dock Rumex sp. Smartveed Polygonum sp_ Alkali bulrush Scirpus robustns Arrow grass Triglochin maritima valtgrass IDistichlis staicata Brass button Cotula coronopifolia Pickieweed Sulicornia ambigua Pickle -weed Salieornia subterminallis Sego pondweed; Potomogeton pectinatus Horned gcndweed Zannichellia palustris Ditch gra Rupp a maritima Cr Sand. spurry Spergolaria sp. Silverweed Potentilla anserina Gum plant Grindelia cuneifoli,a Alkali heath Frankenia gram?iflora Pigweed Cienopodium sp.. Filaree Erod :um sp. Filaree F --odium cicutarium Filaree Erod um moschatum Pur clover Medicaga hispida Fescue Festuca megalura Foxtail chess BramtXs robins Poverty three -awn Aristada divaricata Pine bluegrass Poa scabrella Wild oat Avena fatua Sig weeks fescue Festuca octoflora D-6 '-GDRUT'FTC NAMES QE ATTI14ALS AT 5PL1�T n T1TCa Common NalFtu SCienti,fac Name _ Plants icO tinued)' SO-fG cheat California Leedlegra:s Bromrs Mollis Brume grass 5upa nul $ CGckl=?bur S Spikeweed .Xa�um sp, Whistle IeMiZO Sp Bindweed 'ena aur-2a SI. ' Ustard ConVOt 'AL'S sn. California nc-oBrame ca StePy. .Lupine Eschscholzi3 calii'Brnica Salt bush Lupinus D. Fat-hen _'.alt bush Atr—r ipiele.x sp. r Buck brush At _P Patina var.. haste Ped bud' Ceanothus sp. Coyote bush C.erc occidentalis Sagebrush Baccharis nil;Maris Poison oak Arte -call— �f a Cascara siloba Buttonbu.,h G12 w icer (butt t-- Rhasunus arshiana --�_ Willows Cephelanthus acciclentalis lZeage. lea- e=rkyl; Salim sp_ Yerba. Santa, al err � a Ceanothus E� z--�= dictyo r p; D-7 APPENDIX E Inventory of Historic and 1'-tbiGtoric Features Reference; "The California History Plan", Volume two inventory of Historic Features E i3 o 7 Nallbitol He9fisnt } �- F wr.7 y`rd turoW Nw�Wb o [ w .k S = d! ' W F,. r= CALAVE"AS COUNTY U heat Angerl.fJn,d * k x Cl Mountain f Amir >C x k 4witon Ihoberi) Gulldurg C.Mrx) Sew Fan:lango-Ilam«s.NumBggei House nest Anirli, tamp x x abut th Ctossfrg m neat tanAndttas FiamOafOfe . - - Glaiko k x k «t eduutget building snA ai►as x x :® x Gkssmo IG tauHo Gulen) No, 200 klbkelumnb ihh "� . 1_1 �., x ki *Ovmnr HAI k X R x 10 OS. Han SM Andreas k k Jany Lind k k healMo"Iumne Hill k a` X 1411Hol«r kiokelumna lhll k k k ihii� ''t House Wow Seco k x k,tnbt, NOY Coptxeblysbi. k k k kltnk 8uitttlnq Sill Spring Valley x k X 14kllo" Hill k k x Wiphy1 k k k E i3 CAI.AV[n AS COUNTY p � � � r..� a m WC S H p �m„Ic.`; c a � We 6 N _ 6 � a u rV Z ^ Y l,��pj WI q t a. q E x a ° l _ � C w iS -2 G F• u o 'r. K •a° Q +" 'a z 3 p x � C to.-mod neght" g fig � Vl �_ g U. 2 r" N w 1� E �I 10 b$ (J .3 �. t� ppr 0. t Vy, I C �' C3 a. Q N � �. m �M. VC! tl ^ .. t3ivNtiildp e «. ii. � Mwphyo GtYmour School MUrphyt x X. x Murphy} ikiel uwphyt x X k x RidGe (ktml HdUta nem Mokalumna Hill X X X North Rtpi+th teiMle(y Mavillo - X X X X O'6yrtxFelty 511B... - MR Copp"opohs !t K IT, X X PoioiriY my Motelurtne Hill k x x PedidiPNnth Houle- Fehii X K x Piooetr nem Svi A teat X Putt OlC,ee L Sohonl -- rev Ahgelt Mitil) k. x 'X x Priacr�iYtiWtd� building - ,ulYvine K X x- _. ; ilclN Ytip RDNr1 X x X X X Pill pwd Flat x Pled [dick urarntn,r School w Altville X X k Ne"eklJohn�ltlwte P Ie San Andleat k k X hoolR, Camp R49114.xi't'Ptrty - trYr Arhjclt trhtp 3t % X ilwaitiiV Jkchrhw , rJdur�itowil X ii R � E C c'p � � � �4 tiM. � ti fi •: �a1lNnni[IegirNr � � Uanehlll '. io W>pwWWb � s 3 e r CA I.AVGFYAS COUNTY c � g w� h � SOON Gulch O rn o: 2 2 c j J y Al i �1 ti Y7 11 n .ji � near Wost hint x X SlMdlttlt (Arahid) OlrthhlbCoWOO . 11111 Slunk Baddmg site !`oymy riot .' X X 81ohd Conal ngarVeltey 5pnny4 -..,�... X X k Slone Crawl. settlettiehtSlta Ul 9pri.,A Valley x x - _- iharrrNousa . x Sap Andreas x x X x Yovrer Rdnch 9arn _. and Nausa X x � Ttever (peter U BUIldtnd x ASN phys x X Vi11YLnst ... .. hail AngelY f:yYlflp x Y -... Volk to Boll Man..menl Vabacito X x Vallaato Ntaga stalidn _" Vplleelto v - - x x _s.. _.. ..... x Valley $ ingY x x x x — -- -- `ar, y STANISLAUS COUNTY 111-' tlMRI rSITk5 Advo. 110 neer l,+odc lid Consul 11mfp Khphtt tY�ey. Iknt 11on+Y r^ �;nt�jhtp.Eerry tv,pot Ctty roo flouts Khtphtt retry kntphtt F ttry l(hlghtt Kentt• Ca Caran�e 7.lihei'Y NW7iY 1-*Nphtt forty Tu1rrYl.k 1r!Jt 4�� PiSWYrhnOtY, {4YrphpUtO. Y.rn�!y re!ty IC�O;m-t It6hC1+ Y. iN,et Kh!gtiU rely OPMI$TOMC 51TC5 l eilimliY Indim Comp 5,10 iWt fct peal ahr h b N C TUOLUMNE y e E _ Naticn�i,rgirt.r n t Q EE � C y ' y yy x �NIIAI.NIIiI L Q LI COUNTY WwWR c — � 5 a yE NISTORICSITE5 n i mn a a 8 w v a ri $ '� t ' a_ u lt, r. pultertield 5tote 5rte Jamntinwn X k _.. x Big CArlal x X k. •� Urlck Klln( — - heat Spgnglodd k x X ourgionNouaa Sonora X x Y Cady Houk' Sddota k X k near Tuolumne k _ X Ctiailr!•Chamfaerbun Hou'.A w .r 6airota k x x Ckrokee near Tuolumne city k k' k Chinatown Sonota X Y T- ChinpttCamp k k ff x - - x Chuk1! Camp 5rhodl Chinek Camp k k C riauan Str!n" Chutth Sonora X _ x x Columbro Bannister ttarut Marty k x . _.-.. Columt+la Hrllon-�17�Ytrrfl Columbia x x X X• k J- CodRdtnea Mina CahlidorKo x X CooMr`a'Cabm Emigrant Bahia X k X 0 tme8 Route. liotk Cotraf —� ear bon Pedro Reitrron k k k orintl't greriook ighwiv 1Dg k k X, r I TUOLUMNE COJNTV borley House Snnilra Dr.'Turner House ClUnrat Camp Fni,004t Basi r Fmponun. Y ll!•lt Atintsidwo Alpert Valley Votennte N4110had Pafk Farmhoutz MotTotlle owft Ftletti $httne First 51$Yeht4 filar Firsl FIA" Post Off,cr Kori@re Gold Spring% —t1w Columbia GrovalIn Urovtt Hutelbklontezf"th House Spnnrp Itaird How it, Jipkfunvillii NYtiMt+d Hegleihl A bwursildik W W Ui U V @I 6 L n ,E t G n 11 C" '^ C P y VIl Q E S tiIF b Y — a f a � TUOLUMNE COUNTY a 5 n o oo Jamciiowrl X ( x Jtwtill Cehtdte'y % k X $onbte nkel bzh Peds Eau :obit X Y X Lime Kdu Shoy/tCrot x x X. Merle 7wyin Cee�r neet Tuinetown X x x x Melhodnl Church ?wriorr x X Attu runt" Neukl IT and Pull ONlca X x X % Y, !I l '% FUl I IAIYmItu>•+i hoer ChOW Ciy:p X X x - Mollie LSde I.M J Lret Ctirry -- Mouhteut Vier". I Molumb t - X X �( Ml :Ce rhel Cetho"c Church and C6htetet} x % X til ,p(fJcriot x x % OOJ Fet oW%Hill LLI Bop Olk FIeY $ x Old Oitvvy troll5luthphetd Old Slime R:r,.dn1, 6 o Got roar X x X Potkgtll felly Site I SWAIM River x % X J pnit 011ie — — — — — j ChmClo ump x X t, hhse1 OtMrw �. 5ielrort hookliccwui k x X X TUGLVIANE COUNTY Rata h White Grocery Gtoyelend Rctawn Ndute 60itdra RntanC,tohmStore Mime Camp Rnri 00eer Houte ;arwn s wmillFlat School ..-.� st"IngDeld 5%ondGm Lott neat Gtoyeland viawenut Kne Shimnut Grtde Snaw'm flat h mt Sonora MOW't. Flit SOhoof ShIWI Flat Sierra Rairtead gouhdhourt Jemetlown Sodota bufufftl blattret SSriota. Sonora Gold Caolp near Sancta SonorOono Acid Oil Sonora Coultlrnlit Spritighold SnrlryghehJ Utnrth 6 &,60t 5pting eld SL AnWtCtmataty Colgmula E b Nauanl ilxglalnt `� Owatra,hlp Ja 3 € E C j Cryo ;y P� ENY7 g 8 1Ugi,Uh1FJC CtrUNTYE E wt ki. d G 3 _ g E •a° �' u M, a,., u ut 'fi �� — •-r « .. S rl I+° W W e> ¢ ¢ b } H I A .� k 'Sr Anne'$ Chuleh ColumGla k X 51.ftantu Ca bol'c (-hhuJ � 3` Ghia".aM 1'7np . .w !f t GhUrthfth S4 jA er i 13 APPENDIX F Individuals and Agencies Contacted by lO&E Vegetation Leslie Uood, Executive Director, California Natural Areas Coordinating' Council Joe Madeiros, Modesto Jr.. Ccllege and Modesto Natural History Museum Blaine Rogers, Vegetation Botonist, Columbia Jr, College, Columbia, California Wildlife and Veget.iti,on James Maddox. State of California, The Resoure0is Agency, Department- of Fish and Gzm-�, Region 4 Jack Bernard, U.S. Army Corps of Engineers Dennis Bergen, State Of California, The Resources Agency, Department of Fish and Came, Region 4 Eugene Toftoli, State of California, The Resources Agen:y, Department of Fish ania Care, Region 4 Geology and Sour. Charles Jen+,Lings, California ,State Division of Mines and Geology Woodward Clyde, Soils and Engineering Consultant Land Use Charles Neal, Oakdale Irrigation District Ted Brubakea, Calaveras County, Departmont of Building and PlAtning, San Andreas, California Phil Brady, "ala teras County,- Department of Building and 'Planning,, San Andrea;, California Jeff Mrndolh&I1, Statiislaus County Planning Department, Modesto, CaliRed Archibald, Tuolumne County Planning Department, Sonora, California John Mills, Tuolumne County Planning. Department, Sonora, 'California K, V, Broadway, Office of the Assessor, Stani:slaus County George Mot , City 01 Oakdale, Department orPl.anninl; and Development Historical. Sites 'Gene Itogawa, Office of historic Preservation Archaeology Michael Ji Mora'tto, Supervising Professional Region 4, District Clearinghouse Recreation Jack Bernard, U.S. Army Corps of Engineers Robert Vercade, U.S. Army Corps of Engineers Landscape Preservation Zone Al Kolster, California State Department of Parks and Recreation Others U.S. Bureau of Reclamation, Mid -Pacific Regional Office Federal Pottier Commission Sierta Conservation Camp APPENDIX F STALE'I WFORN►A-4tSOURCES AGENCY EDMUND 0, IIROWN JR„ Cor.rnor �= OFFICE OF HISTORIC PRESERVATION DEPARTMENT OF PARKS AND RECREATION POST OFFICE 60% 7390 SACRAMENTO, CALIFORNIA VU11 r7I (916) 4454006 July 23, 1976 Hr, N. H. Duines, Maaagar Land Department Pacific. Gas & Electrir C=Vnny 77 Male Street San Francisco, Californias 9W1, Daar Mr. Daines Thm Office of Historic Preservation has been advised that the Pac3.fic Gas and Electric: Company has initiated an environmental study for the proposed Nwo Melones 230 KV Transmission Line Project in the Sierra foothills cast of the San Joaquin Valley, The Office of Hictorie 'Preservation is not aware of the act -al route for the proposed trar Mission corridor. howev4t,aat staff for the State Historic Prdservatioy Officer, I am concerned that 9 portion of the tra,omission route. may encroach upon A rttgisterbd historical, landmark. thethe i�'illsasproposed &anch�rCali�fornia Statevdion line c�listor��dln project may r3dversely affect Historic Preservat.'on recommendg against an proposal o install the Office of g Y proposal to install transmission l:.nee in c166e prof imi.ty to the rantb complex; The historical integrity of the entire ,setting should be preserved as an dx=ple of an operational ranch complex in vtaaislaus County. The esthetic gtmlity of the anvirownent should not be Compromised by the introduction of visual or atmospheric elements which acre out of charaacter tt th the registered property. The Office of Historic Preservation requests that thea Pacific Gas and Slectric Company raconsidi:r installation of tiansmiasion line=s in the vicinity of the ti'111ma Ranch. The environmental study should develop alternative considerations such as rerouting the traaezni;:osion lime or plat;i.xy� the tkmaiamihoion lines underground It the 'NdttaLl Power Commission proviAes licenlaiang for Baia u:Eder salting, com- plithet with the HationAl, Historic Preservation Act of 1966 e=nd 1cecut ve om- 11593 in ralqu rmd. The Of'fer 'Qrk Of H,iNtoric Preservation further requests eonhul.tration with your offidja kdgatrdi.Llg proper protection o1� environmental concca.rnn, P"Ass Contract: Rr. Fugene ltosava (916-445-8006) of gild you raaquLire1 further aBisistauico r my staff, cho &,incaraly,. Origraa, "ia:�ed by mr. thOx tell" Dr. ktox Hellon I'-3 historic h6darvAtion C6oirdit toz' Couttegy of PG&E APPENDIX F STATE OF CAIIrORNIA-•RESOURCES AWNCV EDMUND G. BROWN Jk CovornoP OFF ' OF HISTORIC PRESERVATION DEPARTMENT'OF PARKS AND RECREATION POST OFFfCE BOX 2390 xm SACRAMENTO, CAL ORNIA 45811 (916) 445,8006 A+guat 17o 7..976 Mr. N, Hi, Duines, Manager Land Dapar4Taant Pacific Can & Slcctric Company 17 Beale,Straat San`Francisco., California 94106 Dear Mr. Dainrst In referent* to our latter of July 21, 1976 requesting your dasiat&nc# in preserving the hiatorieal integrity of 'thea Willms Fanch in Stani APPENDIX G Individuals and Agencies Contacted by the Bureau of Reclamation PC ;,E Company i-cAney S. Baishiki -- Electrical. Engineet Donald J: Foley hssociate in Civil Engineering Momcilo K. Tasich -- Electrical Engineer Nancy W. Twiss — Environme%tal Planner, Projact Cnordinator James Morgan 'Electrical Engineer Deborah Nelson -- Project Coordinator Department of Defense. Corps of Engineers Fred Kindel Environmentalist Jack Barnard Environmentalist California Department of Fish and Game Edward S, Smith -- Wildlife Management Supervisor, Fresno, CA Robert 8tuggermann -- Area Wil6life Manager, Fresno, CA Tri -Dam Project Jack Southern -- Executive Secretary and General Manager Sierra Conservation Center Laurence Meeks Califoraia Native plant Society Mary Major -- university of California, Davis, CA J,_S,.Bureau, of Soot t. Fisheries and Wildlife Michael' R, Miller => Wildlife piologibt Federal .,Power Cotmission, 'Bureau of Power Quentin Ai EUson Chief, Environmental Anelysis Branch C-1 APPENDIX-- H References PG&E Arleley, Rodney '�., 1964. Soil Surveyof the Eastern Stanislaus California, Series ]957, No. 2q U,S T7,Area, Service in Cooperation with the�CaliforniacAgriculturaltion Experiment Station, Washington, D.C. California Natural Areas Coordinating Council, 1975, Inventor California Natural. Areas of Vol, 1, C,.N,A,C.c., _Sonoma, California„ Califorhiaz State of, TheResources Agency, Department of Fish and Game, X972, Report to the California State Water Resources Control Board on the Effects of the _New Melones Pro ect on Fish and Wildlife Resources o£ the Stanislaus River and Sacramento San Joa"uin Delta, The Resources Agency, Sacramento California. California, State of. The y , k Resources Agency, Department of Parks and Recreation, The Sierra, Foothill and Low Coastal Mountain Province Landscape Preservation S— Ludy,he Resources Agency, Sacramento, California. California, State of, Department of Transportation,, 1975. Tuolumne Count Reional_Trans ortation_Plan, Caltrans, District lO Stockton, California, , Oakdale, City of, Land Use Element, Oakdale City Planning De art Oakdale, California, 1976. p Ment, Oakdale Irrigation District, 1942, Official Ma of the ration Districr, Oakdale, California, .0akdalo Pacific; Gas and Electric Company, 1975. Stanislaus Stud Areas —M Module 10, Percent Slope Map, PCandE, San Francisco, California, a i nd Electric Pati Lines aEng3neering Maps Alternative Routes and,Existn Transmission San franc... P ;745/2, 527591/1, 528744/1, PGa dE 'anion ' isco, California. n , S'tanislaus Count of Stanislaus 1Cal �forn975, imptlnslusGal Plsn for, —J-----._", ,.the Count County, Modesto, California, Storet, Tracy 1 and Usinger, Robert L. �tistor , University of California Press4�Se ierr.a Nevz'keley, California, Ratural. Tuolumne County, .].574. Recreation Element of TuolumneCoue . nt I?1an, Sonora, Cala i ornia. ____ y Gneral UIS- b4n L., nt 1 Agriculture; Soil Conservation Service, R:etzer, John L. 1951, oil curve of -the Stockton Area _California,. (Uastern Sheet) Series 1859 tea, 1p, I1, S, D.A. Sail Canscrvation Service, Davis, California, 11=1 (Courtesy of PG&E) U.S. Department of Agriculture, Forest Service, Soil-Vegetation Survey Map 79 A-! Copperopolis Quadrangle, U.S. Department of Agriculture Forest Service, San Francisco, California. U.S, Army Corps of Engineers, 1972. New Melones Lake Environmental Impilct Statement, Stanisl.aus River, California. U.S, Army Corps GL Enginaers, Sacramento, California. U.S. Bureau of Reclamation, 1972. New Melones Lake Stanislaus River, California,, Environmental Impact 'Statement Supplemental, Data on Use of Conservation Yield, U.S, "Bureau of Reclamation, Sacramento, California. U.S. Geological. Survey, C_npperopolis,_Melones Dam, Cakdal.e, Knights Ferry, Keystone, Waterford, Pansell, 7.5 Minute Quadrangle Sheets, U,S Geological Survey, San Francisco, California. REFERENCES USER Salitore; Edward V., 1971..California - Past -Present -Future. U.S. Army Corps of Engineers; April 1975. for New Melones Lake California. Prelminar Conte is 'Pacific Gas and Electric Com an y Prop�t`1ew.Melones 230 -kV TransmissioniLineenCalatal vera Statement and Stanislaus Codes. as, Tua3.tlmne Pacific Gas and Elactric company, October 20 New Melones 230-ktr Transmission --A 1976. Fp Project. License. �ication dor a Transtniss�ot7 California, State of, Public Utilities Commissiun. Genera No. 131 -`Bilin of New ;Elect 1 Order Electric Transmission FacilitiesGe11eratin� Plants anti Certain Curren-Alquist State Energy Resources and Development Act. power Faalit and Devela ment Act, Native Plant Society, 1974. Inventor of Rare and Endan erect of,California. Plants U -S. Bureau of Reclamation, 1974, Threatened F istt artd Wildlife . Brigham Young University,De artmet, p t of Zoology, dune 1975. Su---ge--sted Practices for Iia for Protection on PZoologoworliy, s. California, State of; Department of Fish and Game, 1971. Lando Ut nation of_a Wild Pheasant ,Resource. Landowner California, State of, Department of Fistt and Game; Supplements 2, April; 1975. Licensed Domesticated pish Breeders, 1 and Pacific Gas and Electric Company, January 1977. Environmental Data S►. teittent--Propos New I+felottes 230-1c`V nsmi.ssion Line, HX5 Inc, APPENDIX PUBLIC AGENCIES WITH JURISDICTION BY LAW A encies with Jurisdiction; T e of Pmt; Bureau of band Management Easement Calaveras County Route Approval. California Division of Highways Encroachment Permit California. .Public Utilities. Certificate of Public Convenience en ce City of Sari Francisco, Dept. of Public Works. Hetch License Hetchy Project Federal Power Commission License Federal, Aviation Administration, Dete..mination of no hazard Oakdale irrigation District Consent or License depending upon type of interest Stanislaus County. Route Approval State of California, Department of Tuolumne County Easement Route Approval U-S, Army Corps of Engineers Easement p be artment of Water Resources Reclamation Easement Board Alternative B is selected) Others Sierra Railway Crossing Permit; License (Courtesy of PG&E Company) 11' APPENDIX J ELECT -RIC EFFECTS OF THE TRANSMISSION LINE Introduction A characteristic of any energized conductor is that electrostatic and slectro- magnetic fields are created in the medium surrounding the conductors fields produce the electrical effects4 These attributable to the presence and of an overhead 230 kV transmission line. operation The effects are manifested through two processes: (1) the electric field Produces a partial electrical discharge into the air, known as corona. discharge may result in audible no, radio noise, televisionCorina and the. genera n of ozone and. oxides of nitrogen, � interference, fields induce voltages :and currer:ts on objects _ (2) electric and magnetic J exposed to these fields. The induced effects may produce occasional radio and television interference due to sparking between small gars. Corona When an electric field of sufficient strength stresses the air Within a .certain finite distance, the air is ionized and corona, disc large occurs, In the case of 'Overhead transmission lines the maximum elc , a e Occurs at the surface of the conductor and is �rI field voltage gradient a function o£ the operating vole tage, dlie radius of the condtctors,, and the height of the conductors above ve b d For corona, discharge to occur, the maximum conductor surface gradient. must eatceed the dielectric breal�down voltage gradient, ductor surface gradient at which this occurs is rpf'erred to asthe ere icon` itical Y surface gradient. For air at standard atmospheric conditions in a uniform electric field, the breakdown voltage gradient is 21.1 kV rms (root -mean - square) per centimeter. The breakdown voltage gradient for air is a functlon of air density and is, therefore, affected by temperature, pressure and altitude Transmission lines are designed to have maximum smooth conductor surface. gradients ranging from 0. b to 0. 8 of the theoretical value of the critical sur- face gradient. This is necessary because the conductor is: not a smooth surface but is stranded and may be nicked or burred during transmission; line construction. Particules such as dust or insects may adhere to the conductor during fair weather and raindrops and sno\& ,lakes gather on the conductor during foul weather. These discontinuities of the conductor surface result in discrete points where the actual surface gradient is no longer less than the critical surface gradient, At these points corona discharge begins. During foul weatner,.corona . activity and its resultant effects are more pro- nour,ed. because the rain or snow creates more points on the conductor from which corona discharges can occur. The computed r ia;: Imum smooth conductor surface gradients at 242 kV for the transmission :line are )4, 91 kV rms/rzn on the bottom. please, 1. 18 kV rreis/ cm on the center phase, And 14. 77 kV rms/cm on the top phase. Radio Iriterference .Radio interference (RI) from tt-ansmission lines is primarily caused by partial discharges of the air (corona) in the immediate vicinity of the conductor. With practical line designs, the aI resulting fromcorona is 'highly dep-ndent upon the presence of protrusions on the conductor surface and t'%e resulting local increases of the electrical gradient (as discuss -ed above). As a result, AI -1 Varies considerably and generally increases by 10 to 30 dB in foul weather. A second source of RI is from gap -type sparking. In isolated instances, the induced electric potential on an ungrounded metallic object in the electric field of the transmission line may cause sparking which produces RZ Sparks may be induced across any small gap between the charged object and another metallic part which is grounded. The conducting path of the spark does not have to be part of the transmission line structure itself. Sparking may occur in loosely connected hardware of a nearby utility line or along other conducting paths such as fences and metal junk near the edge of the right-of-way. Dirty insulators may spark in foggy weather and thus be an isolated source of RI. The level of corona -generated RI diminishes with increasing frequency and rarely is a problerr,: to reception at frequencief, above 10 MHz. To th-a. average person, corona -generated RI is an annoyance only in the 540 to 1, 600 kilohertz" (KHz) AM broadcast band. In the case of the gap -type noise r_measured with radio noise meters, the noise level is fairly constant with increasing frequencies to 60 MHz. By appropriate selection of design parameters (i e. , minimum conductor surface -to -voltage gradient, conductor diameter; and line dimensions), together with routing of the line so as to avoid critical lr cat ons, corona - induced RI_can be held to acceptable levels. Cap noise can be avoided by proper design of line hardware parts, including electrical, bonding where necessary, and by careful tighten: g of fastenings during V.Ae construction. Individual locations of arcing are readily locatable and can be corrected. Quality of AM radio reception is ,ra function of the signal -to -mise. (SS/N) ratio, Which is the ratio between two variablest the broadcast station signal level (S) at the point of reception and the radio noise Level (N) The signal strength at T-3 any point of reception along the transiriis Sion -line depmid!i on the power, distance to the desired station, location of the poilit of recaptiOJ14 and the mode of propagation. The radio "Oise level for a given line v,,,.j,j0g with voltage, contamination in the air and on the, conductor, and weatlwr' conditions. An RI meter with a quasi.-pcak detector is used to njeasut(,j t_,jdjO noise. The quasi -peak detector is designed so that it ii-ieasurr.4s 11,1(, j,�nnoyance tartar to the htman car of the muasurod noise. Using this instrument to establish noise levels; listening surveys of listener .tnncyance have been made: The evaluation of these listr-ming tests has pro- dti,cea the following categories of quality of reception. Class 0 f Reception Signal/Noise Peak Ratio (dB A5 ,)entirely Satisfactory B4 'Very Good, Background Unobtrusive C3 FAir'Y Satisfactory) Background Phial y Evident 22 D2 Background. Very Evident, But Speech easily TInderstood 16 .E1 Speech Understandable With Severe Concentration 6 FO Speech Unintelligible The Fedoral COMYII-UnIC8'-ions Commissifift (I'CC) has defined lisatigractory service" On the basis of a 24 dB S/1\1 ratio W)Wn r1neasured with a rriet meeting AMOrican National Standards Institute (ANSI) sta,ndards, As P-teviOU81Y explained, both signal strength, and.noisevary wide_tjy L'1-ne to t* me a4- aDY given lucation, depending On M4hY :factors-- The rt.k,, fines three catogories, of broadcast. service aro&8N (1) primary service an j-4 k area in which the groundwave is not subject to of jectionable interference or fading, (2) secondary service an area served by the sky -wave which is r not subject to objectionable variations in intensity, (3) intermittent service an area served by the groundwave,, beyond the pr,in.,tary service area and subject to some interference and fading. Reception of AM broadcast sig- nals may normally vary greatly,i.n the secondary and intermittent service areas. Therefore, to accurately assess the impact of transmission line RI, only signal strengths of stations in their primary coverage areas are -considered. Frr reliable service in a rural primary co;rerage area, sig- nal strengths of 40-54 dB above 1 microvolt/meter are required. Much greater signal strengths are required to achieve reliable service in the primary coverage areas of city residential and business areas. Por lateral distance of up to 200 feet from the outermost conductor of a, transmission line; the reOuntion of RI levels follows an 1.taverse square law (i. e. , for every e:oubUng of distance from the conductor, the RI level de- creases by 12 dB). At lateral distances beyond 200 feet, the reduction attains an approximately linear relationship (a decrease of 6 dB for each doubling of distance), Televisioz Interference Power transmission line -related sources of television interference (TVI) are sparking and corona discharge from the conductor. ret"he influence of the interference on the quality of television reception will `ua.ry, depending both 4)n the strength of the received televis oii signal and on the particular charack, teristics of the interference electrical .noise. Sparking is t.e most common power line -related source! of TVI. Although more often experienced on 'Very nigh Frequency (VI -IF) c1jan.nels, in some rare cases sparking interference to 'Ultra High Frequency (UHF) has been, observed. Lightly loaded insulators and loose suspension hardware can ;;park due to uplift forces, on the conductor or due to wind .induced movement of the conductor. Dirty insulators may spark in: foggy weather. Also gap type sparking can take place between ungrounded ax.4 grounded metal objects in the electric field pf the transmission line. The electric field induces an electric potential on the ungrounded metal. Ifthe air ga.a distance between the ungrounded and 'grounded metal is small, the dielectric strength of the gap is inadequate to withstand the induced electric potential and sparking takes place. Sparking in power line componenta, results in interference over a broad frequoncy spectrum:, The interference noise level, as measured by radio noise meter8i does not decay significantly with i,acreasing frequency through the low band VI-ta television channe'Is Sparking can be avoided by proper design and maintenance of transmission lines. Since the sources of sparking `BVI occur at discrete locations; the sources can be readily detected and the TVI cl rAinated. J-6 Corona discharge from the transmission rine conductors mai be a sect l source of TVI. With 230 kV transmission lines, the generated interference is highly clepo,ndent upon the presence of protrusions ori the conOuctor sur- face. 7'VI noise •;vill increase 10 to 30 dB in foul weather wh6n water drop- lets are on the conductor surface. Unlike sparking noise, the 'levF:l of naise resulting from corona discharge (as measured by a radio noi=se meter). decays at the rate of approximately 20 dB for each tenfold increase in frequency. For these reasons, TVI caused by corona discharge, will be observed on the VHF channels only under adverse conditions of foul, weather, "low signal strength, and unfavorable antenna placement, 4 Specifyin g he quality of tefevici.on reception in terms of u. gnal/to jnoi se S ratio is more difficult (SIN) than for .AM broadcast band radio reception A correc- tion must be made to adjust for the difference in bandwidth Of the noise measuring instrument and the 3 MHz bandwidth of a television receiver. The much wider ba,ndWidth of the television receiver admits greater ;nolle. Furthermore, corrections are required for the type ype of detector used, in the noise measuring nstr"ment and for the type of noise measured (i. eo, gap type, positive corona, negative corona). The bandwidth correction factor or random noise xs Proportional to the square root of the ratio of the band vcndihs• for 'Impulse noise the bandwidth correction is proportional to the ratio of bandwidths. Corona noise approximates random noises ".t'i'le quality of television picture .reception versus SIN fo ' corona noise ., measured with a peak detector instrument and standardize fora 3 MHz has been definers as follows;, Quality.of Reception SIN Ratio Peak A5 Threshold of Visibility Excellent: Reception 37 dB B4 Very Little Interference, Reception Wry Good 27 C3 Interference Plainly Evident, Reception Tolerable 17 D2 Interference Very Evident and Annoying 4 El Intense Interference, Extremely Annoying X11 1,10 Intolerable Interference, Reception Unacceptable As an example, the SfN for a received sihial of 74 dB in a corona noise field of 44 dB would be 30 dB and the quality of reception would be very good. Vor 'lateral distances of up to 200 feet from the outer cOndUctor of the transmission line, foul, weather corona -generated TVI will bo reduced according to an inverse sqt+are lav (there will be a dnereago of 12 dB for each doubling of distance). An analysis of electrical effects was conducted 111 the study area. The locations of the test sites for noise, radio anu 'television interference are shown on Plate 30: Radio Noise Table 9 shows the AM radio stations with "satisfactory" or better recep- tion within the project study area. Table 10 shows the signal. strength for these AM broadcast station. at six test locations along the 'trans' mission line route: Por lateral distance of up to 201 feet from tile: outermost conductor of a transmission line, the reduction of RI levels follows an inverse square law (i.e, for every doubling of distance from the conductor, the RI level, decreases by 12 dB). At laterAl distances beyoa;i 200 feet, the reduction attains an approximately linear relationship (a decrease of - 6 f6 dt for each doubling of distance). Table 11 below shows the estimated radio interference leve]: for the trans- mission line, using this level, (with corrections for frequency and the measured field strength of tho ASI stations) the ;effect of the trans Mission line on the ual q ity of reception, et various dist,anoes from the tower center line is shown on Plate 31, J-8 i ttl m MAP ;t7EW IdETM*WZ 230 kV ass TMT ST? •Ta cc1v[J porvu �-, �- SZ tr I'z La rain park r s Parking lot o_ Sierra CorrectfonaT facfLLtfes: f1 _i7 53' 45-, V 12V 32' 15- S fit 5?SfiE 2. -15 rifles east or Kistler Ranch cm old :Hit_v 22CE PF 37` 5G, 45"1 W' I20' 32:• /°(Ia 2>4 ailes west or Kfs&_..ler F.anch ca new const vctiea (eventual vest-bo.� of k -j- 220) It 37" 51' ' , - 120` 35' 45" 4s I B miles east or b' j �j c7 �'��7 8 - srm /> 37` > I2lT" on Vttliecs ei30 . .4 sones 7s 5Sw {C i To r l20` 39' L5'[ i Slii 5t 80 Et> east-northeast cr _sole on northeast corer of, Le=sster and ° ` •' 'i /r st Orange Blossom- nar«rt" [ IT 37` 4717, W 220' -45' 55"' o.' ca. 4 SnY 6t Quail Rill Rd., southeast or chamstone ivayr, aLe?y 100 St> 11 37` 55' 20", Sf 1.23` 37' 20" eFcozozfryrs►v P _ r J 13 X ♦ p4tag•1701A i. 1 . _ TO * I j 70 - !'yrs — �'� �.-�--... •*�L .♦� ��,} _.. ��.` 'i.a �NmyS_�. � �. f f [ .j,-, caC[u. .r2i - .t � - ,t�.�,� r „[ j {,\i _:yp•93 T/L•s.. •.�-�� � �.._ Wenwntt. r 'y `' •�e+f..�s`�'� � ,° f`"r Y �J' \ _� a Subatev_ 0 t mr WC.ES, y s r AM RAAIO STATIONS 9 WITH SATIT'able S.l~ACTORY OR BETTER RECIrPTZOIV Radio Station — Fr-- e.__.� Trat ornittip8 Power KiviJ 0. 58o MHz; n Y - Location K'CBS 0. 740 MHz 5 kW 5 kW KTR$ 50 kW Fresno 0. 86o MHz 0 kW 50 kV1r' San Francis, KFRE o. 940 MHz 5A kW 1 Ic14r Modesto KBEE 0. 970 MHz 1 kW 50 kW Fresno KKIS 0. 990 M1;z 1 5 kW kW Modesto KRAK 1. 14 MHz5 50 k'lxr .' Pittsburg KWG 1. 23 MHz. 'c1V 5p kW Sacramento KROY 1. 24 .MHz.. 0.25 kW Stockton K,�OY 1 ; 28 MHz � � 1 icW 0.25 kW Sacramento KYNO 1, 30 MHz 5 kW 1 kW Stockton KCR.E1, 1. 32 MHz 5 kW 1 kW Fresno xFN L 36 MHz 5 kW l kW Sacramento KCEY 1. 39 MHz 5 kW a kW Modesto KSTIV 1 42 M1Yx 5 kW 5 kyt► Turlock KVMx, 1; 45 M1-iz 1 kW 1 kW Stockton KYC1S 1.48 MHz 0.25 kW Sonora KCVR 1. 57 MHz 5 kW kW 5 kW KWIP L 585 MHz 5 kW Lodi KGST 1. 60 MHj 1 kW 1 kWkW , Merced 1 kW Fresno J'� 9 Table 10 AM RADIO STATION FIELD STRENGTHS (Day ?Measurements) Station Frequency (in MHz) Location */ AM Radia Station 1 2 3 4 5 b Xmi 0.58 70 71.5 71 71.5 71.0 68.5 KC3'S 0.740 72.7 74.2 75.7 79.7 77.7 77.7 KTRB 0.860 74 78.5 83,5 86.9 .87.9 81.0 KFRE 0.940 59.4 60.4 61.4 66.4 65.9 57.4 KBEE 0.970 67.4 67 9 70.9 78.4 85.4 75.4 XKIS 0.990 57.9 58.4 57.9 63.4 57.4 63.4 KRA.K 1.114 42.4 40.9 46,9 59.4 66.9 46.4 KWG 1.23 58.7 62.6 64.9 68..7 64.1 65.6 KROY 1.24 44.6 33 1 49.6 50.6 50. 1 44. 1 KJ'OY 1.28 62.0` 64.1 60.6 70.6 69.1 46.1 KYNO 1.30 47.5 49.0 49.5 53.1 43.0 46.0 KCRA 1.32 51,5 49.5 50.5 57.0 56,0 53.0 KFN 1.36 67 76 79.0 85.0 85.5 74.0 KCEY 1.39 64..4 72.9 71.9 77.4 75.4 65.9 KSTN 1.42 63.4 64:4 68.4 69.4 69. 9 ' 66. 9 KVML 1.45 61.8 65. 3 64.8 62, 8 53. 3 64; 3 1{'Y OS 1.48 54.8 62.8 60.8 66.4 63, 8 58. 3 KCVR 1.57 44.2 49.2 47.2 53.8 53.7 S3.7 K`W'IP 1.58 50.2 56.7 56.2 62.2 56.2 54:2 j KGST 1.60 42. ? 4?.. 7 454 7 48.2 43i 2 44.2 Readings are its dB above 1 microvolt per meter. *I Locations s are shown wi P1ate. M. J' -w 10 Table 1.i ESTIMATED RADIO UNT2,'1" 1"RENCE 'ELEV;CI.. Distance from Center of Tower Line, Feet; 50 (edge of R/�Y) 100 200 Foul Weather, dB 59 51 42. Z'a.:ir Weather, dB 43 35 26. Calculated at Frequency Eqial to X Megahertz. Based on the anticipated radio noise levels producett by transmicasion line and measured sinal strengths of the AM .radio ; tat:,o.tts, the AM ;frer que cy receptiun Nvill generally be within a.cceptablo levels, The quality of reception during rainy wee l7er and the duality of r0ccptioa during fair weather of some .AM radio broadcast stations with Weak signals may be reduced itilocations close to the rit,�itaofvway. AM rad"') interference should not be experienced in fair weather at lateral. distances gVeeater than 200 feet from th,� outer conductor, Ther,: should be no effect on YM radio reception: . ' 0levision Intcrforence The area along t110 tr:tnsn-lissic n Rine rout4 is served by very 1-iigli Pre gltcncy (VI4F) and Ultra High Frcqut ncy telcvision stations.. Table 1�2 lisi the television sta.t'"s I-tonitored, Tabus ,n zind14 siiozv the existing signal strengths, ambient ngijc level, and tltiality of television "Oce tion. _ p The estiti ated trratisr��ission lin .noise level at 200 fret is s`ignifiraritly� below the �,rnbient rtois,e level and, therefore, the transtixission line noise Will have I negligible effect. Distance Froin. Center of ;'ower bine, Feet AM Reception Quality for Site I A - Entirely Satisfactory B Very Goodo' Background Unobtrusive G - Fairly Satisfactory, Background: Plainly Evident D - Background Very Evident, But Speech Easily Understood' Fr -- S'peech. Understandable With Severe Concentration, F - Speech. Unintelligible. n O "2© C: 18 M U, -< • M lE G) y P 14 m, f�� O cy, �z. �o o z3' v Qk w C?' O' C 4 z oz Distance Froin. Center of ;'ower bine, Feet AM Reception Quality for Site I A - Entirely Satisfactory B Very Goodo' Background Unobtrusive G - Fairly Satisfactory, Background: Plainly Evident D - Background Very Evident, But Speech Easily Understood' Fr -- S'peech. Understandable With Severe Concentration, F - Speech. Unintelligible. n O � C: M U, -< • M G) P Table 12 TELEVISION STATIONS MONITORED TV Station Channel Location Power Frequence KTUV - San Francisco 100 kW 55 MHz KCRA 3 Sacramento 100 kW 61 MHz KROM 4 San FranrAsco 100 kW 67 MHz KPIX 5 San Francisco 100 kW 77 MHz KVCE 6 Sacramento 55 kW 83 MHz KOO 7 San ,Francisco 316 kW 175 MHz KSBW 8 Salu"las 234 kW 181 MHz KQED 9 . San. Fr,,rxisco 316 kW 187 MHz KXTV 10 Sacramento 304 kW 193 MHz KQVR 13 Sac, -:Stock. 281 kW 211 MHz KLOG 19 Modesto 105 kW 501 MHz KMUV 31 Sacramento 537 kW 573 MHz KTXL 40 Sacramento 1738 kW 627 MHz J-13 Table 1? VHF TELEVISMN SIGNAL STRENGTH, AMBIENT NOISE AND SUBSECTIVE RECEPTION QUAI TTY ,Srtaiion Channel ._,.. _ Locations XTV'U 2 Video Signal 1. 2 x IdB -.uV / r.n 39.4 34.4 47.9 34.4 47.4 41.I Am bient Noise �dB-V /m �+ IRe4eption Quality 1/ 52.2 FO 38.7 E1 35.7 D2 43.7 Ea 5b.7 E1 40.7 E1 -KCRA 3 Video Signal .,dB- µV /M 58.8 56.3 61.3 53.8 62.3 68.1 Ambient Noise dB-W/m 58.5 30.5 32.5 32.5 52.5 37.0 Reception, Quality E1 C3 $4 C3 D2 B4 KROM 4 "Video Signal dB W/m U. 5 38i b 48.5 36. 5 44,5 40. 0' Ambient Noise dB-V %zrl N 58.8 26.8 31.8 40,18 53.8 39.3 Reception Quality Fo D2 'KPIX "Video Signal dB- µV /m 30410 a4. 5 45,5 38. 5 36.5 41.6 Ambient Noise d8-V /m i� 24.8 28.8 34.8 5z 8 34:8 43.3 Reception Quality 132 D2 D2 E'0 E1 E1 J-13 Table 13 (cont'd) a.tion Channel Locations K VLE 6 1 2 3 4 5 b Vide-) Signal dB - µV /ran NS 52.9 01.9 NS NS NS Ambient Noise dB- µV /m - 32.5 31.5 Reoeption Quality - C3 B4 KG+ Vid4,,a Siglnal dB- µV /m 32.4 46.3 55.3 411, 3 51.3 43.8 .Ambient Noise dB- AV /rra 43.1 45.1 44. 1 45.1 46.1 Reception Quality - E1 D2 E1 i.32 E1 SB W g Video Signal dB-µV/m 47.4 45.4 51.9 4y.4 39.4 54.4 Ambient Noise dB-ser/rr 51.2 41.2 49i 7 42.2 51.2 41.2 Reception Quality E1 DZ D2 DZ Fo D2 KQED Video Signal dB -,4V /mi NS 43.,1 51.1 NS 49.6 NS Ambient Noise dBH`,4\./rn - 41 42.0 49 , Reception Quality ;. E1 03 W E1 J 14 Tab3e: 13 (cont' d) Station Channel -�— ,Locations , XXT V 10 l 2 3 4 , b Video Signal dB-kV/n., 65.9 71.9 72.4 70.0 54.9 74.9 Ambient Noise dB- µV /m 56,+8 48,.8 45.8 53.8 45.8 41.8 Reception Quality D2 C3 C3 1:?2 C3 _ B4 KOVR. lg Video Signal dB- kV/m. 62.0 70.0 70.0 a 70.5 58.5 82.5 Ambient Noise dB- NV /m 55.9 51. 4 45.4 48,.4 51.4 52.9 A;co ption Quality D2 G3 C3 C3 C3 84 1 / Based on signal tc. ambient hpise ratio AS `rhxeshold of visibility, excellent reception. B4. Very little interference; reception very good G3 Interference plainly tevi,-ient, recept%o,� tolerable I) 2 InterfErence ver3r evident and annoying �] Intense interference, extremely annoying FO Intolerable interference, reception unacceptAble 1V83, No 81'gilal observed 1� 15 Table 14 UHF TELEVISION SIGNAL STRENGTH. AMBIENT NOISE AND SUBJECTIVE RECEPTION QUALITY Station Channel Location KLOC 19 1 2 3 4 5 6 Video Signal dB - uV /rn NS NS 68.4 NS 65.4 NE Ambient Noise dB - uV/m 3Q• 8 -_ 43.8 - 1/ Reception Quality ..« _- D - C3 _ KMUV 31 Video Signal dB - µv /M N5 NS 51,9 NS N5 NS Ambient Noise - x►v /m , .. ,... 41.3 41.3 R„ 1piion Quality D3 KTXL 40 ��'deo Signal dB - .1VIM NS NS NS i S NS 56.5 Atribient Noise dB.. W/m '.. :_,. w ,. ,,, � d2, 4 Rec'?ptloJa Q-tis,lity -- ...c. _. �� �� D2 J/ Based on signal to nose ratio A'5 Threshold of visibility, excellent reception, B4 Very little interference, reception very goad; C3 tnterferehcc plainly evident, reception talerabl.e, 'JZ Interference Very evident and annoying, El Intense, interferanee, extremely athoy ng V0 Intolerable interferoncep reception WAacceptabie. NS No signal observed,, J-16 For lateral distances of up to 200 feet from the oute mission line, foul weather corona -7 r conductor Of tlwos f.rans- generated TVI will be .reduced acs .jkjt,'ding to an inverse square law (there will be a deer of distance), ease of 12 dB for eac:) +rsubinl Table 1.5 presents the estimated noj,se levels Of foul and. ' 'vision interference resulting from mfair weather tele- as -representative, trans ission linea this level and site 3of this dtisign, lysing y be affected. .As s Plate 32 vision stations that may givOu the huxi,bex of fele.. dtx?hown *ing foul weather: burin , TV Wray be affected only g foul weatkhlar and at 2oo feet the center line of the tror a1lsrnission line, there should greater from. effect. The video signal strengths . be no noticeable rengths measured for the livelyweak project area are tela- ,which results in at existing marginal grade of service, e 4. Ozone Generation Of the six major ambient air pollutants gcvex;eed by Federal EPA and California Standards (phot cl:oxide, ochemical oxidant, carbon monoxide, Atro en sulfu.r dioxide, suspended particulate n g only very small amounts of p}�otochexnical. oxidants C ri hydrocarbons), xa er and even smaller amounts of nitric oxide (which trahsfok ns p marily ozone) ane dioxide) will be produced, 'by the high voltage into nitrogen lihe: No lead electricPower partitulatE:s or hydrogen sulfide (al nsmzs,�ion standards) will be o controlled produced b 1,y sta y' the power line±. The forrnatioh of ozone and nitric oxide b' line f,rotn New y thn proposed 230 kV transmissiol Melones to �W'arnerville results from the occurrence discharge: Si�ice, tre,ixsrxiissioh likes a.ie designed f: - of corona of I7"rona , g o mi.nirnixe the generation thy, quantities o.r ozone and nitric oxide proclucpci a to be detectable, re not wcpected Foul Weather Fair Weather To T jL Conditions. Conditions m y' 10' n o ca U) n _ 8 F1 a �► as 6 o -_' A BAEABC D E A B C D E AIB C 'i E A B C D EA B CSD II. 1 Z, 0 .50'' 100 ` 20.0' 5(1 110' 2061 Lateral Distance Fron, Center, of Tower Line Television Reception Quality for Site 3' SINj Exceeds, dB Shown. A - Threshold of visibility excellent reception 37 B' - le little interference, reception very_ goon 27 C -= Interference plain' evident, reception tolerable 17 D interference very evident and. annoying, 4 E - Intense. interference,: extremely annoying -11 _ Signal: to noise ratio O c _ M rn r� M rnIQ TAble Y, ESTIMATED FOUL •9.ND FAIR WEATHER TELE VISION IN'I'FRFERENGF Due to the transmission (TVI),, dg_ 1 / ling Foul Weather At Ede Channel Of R/W Z/ _ At 100 FeeS rte_,__ At 2p0 F� At T'alr Weather From C JL, _/ From C/ �, Ede g. At l 00 Feet 2 51.5 Of R/'�{r From C/;�, r?,t 200 Feet 43. 34: F'rorn C/L 3 51 43 9 34.4 35 5 27.-5 18: 9 4 50.5 42, 5 3 � 27 5 49 4l 33. g 34.5 26.5 1.8.4 6 48.5 3�.4 33 25 17.9 7' 42 40.5 31.9 12.5 16.4 8 34 25.4 26 24.5 15.9 4Z 9 34 25: � 26 18 �. 4 41.5 33.5 24:9 18 9.4 10 41.5 33:`5 25.5 5 5' 17.5 . 13 40.5 32.5 24: 9 25.5 17 5 8.5 19 33 23.9 24.5 16. S 8.9 31 32 25 16.4 7. 9 40 31` 5 24 15: 4 16.0 +�; 0 044 23.5 14: 9 18.5 8 -:b 7.5 -1.1 1 J decibels Right of way 3 Center Line Laboratory investigations carried out by Westinghouse .Electrical Corpera- tion, and the American Electric Power Service Corporation have investigated the production of ozone and other oxidants by Extra High Voltage (EHV) trans» mission lines. The studies conclude that the oxideiit production from present EHV transmission lines (up through 765 kV) does not create an environmental problem. b. Electrostatic and Electromagnetic DicI action It is anticipated that there will be no harmful effects to humans or animals due to electrostatic or electromagnetic induced voltages or currents fr,, m the proposed transrrx ;sig touching la. gL aiigi ;,un ed metal objects on or near the transmission lime right-of-way may occasionally experience small, non -hay` ,,us electrical sensations. he sensation ex- perienced may range frons tj a slightest transient electrical discharge (similar to the tingle experienced after walking on a dry carpet) to a constant electrical discharge contiouing as long as the object is touched. If wduced currents approach the threshold of perception level for any long, continuous, insulated metal objects such as fences, effective mitigation measures are available and vi.11 re taken. NO physically harixnful effects (due either to electrostatic or electromagnetic fields); have been experienced from PCandE's thousands of existing miles of 230 kV transmission fines. 6, Sierra Conservation Celite.r .A special study for radio and television interference was conducted in co 6. operation with the Sierra Conservation Center duo to its two-way radio communication and Master Antenna TV Sy.tem. (;MA.TV).