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HomeMy WebLinkAboutBUTTE CO. PLANNING DEPT. 77-24 4, Tab`1 e ' S M dified MercaIli Ihtensity,Scale of .193.1 " (abridged" � tyS ` � `� rrk >�• w ;, ,,, a r,1 `• Nat'el.tfexcept by very feWundAr specialfavorable cir6umstanc6s: tl R�us,si-For6l..scale) F la 0 ,, r, rr ' Felt only`by a few arsons -at 'rest, especilally on upper, bgs floor"d'e pended t -Ab jects may . i g ,,'o(IbanddTl Rossi Por�lesca;le) �., ' I1 Felt quite noticeably indovits, _, especially, on upper "floors` of buildings but, manyenple k� do not recognize t as:an ` eartliqutanda.n motorcars may rock s�.i t" y . Vibra- 7r tion l i;ke spas" ,i.ng of "'truck. `Duration esti.mat=%AW " (12't Rossi-vorel,; scall+!) a Darin the day,felt andoors y many outdo � g � � ,� y � ops by feta. ;fit night-, some: 1 awakerhed . Dishes%, windows d cors' dastucbad; cr walls flake creaking sound. Sehsiation' UkLp heavy` truck " rt, ` striking buil dine. standing motorcars rocked'`noti,ceabl y ('ZV to V )Ros.4i-Forel scall, ' V,•. Felt by nearly everyone, , niasi�-� awakened. ',fSome dishes , windows,; etc., broken; a"few instances of cracked plaster, unstable objects overturned. Disturbances of trees, pole's, and,,.other tall objects sometimes noticed. Pendulum Clocks , „ may.,,stop. %V to Vt Abssi-Forel scale) = V1. ` Felt bY all, many frightened and ran outdoors , ';:� :Some. heavy ' .furniture moved.; a few instances of fallen is laster damaged chimne;y„s . Daimage ;slight . ' (VI to Vpx Ross i, -Forel sdale) ViT �<<*exylaody runs out dobs . Dama a ne lx ible in buildings Y O . f7 ,� u.,good desicgn and constructiohr sli ht to moderate in well-built ordinary st:oictures I considerab'.16 in poorly built; or badly designed structures; some chimneys broken. Noti'ocd by persons driving motorcars: (Vill Rossi=Forel. scale Vill, Damage 5iic in'tpecia.11y designed structures, cortiderable in eordinary substantial. buildinggs, with, partial collapsO reams x.n- ppoor ly b�il.t 'k,(tructures , panel wal.lt.l' 1 th;t6vin, cr, ,u i y' �- Fall of c of., framie 6trurtux`e.�. " 'S r factor s�,�c�� rony, „ columns , monuments ; w�a1.l:�' . !Iea vy ct a,iture oerurn�, Saxid a.nd mud e;9ected i,�n small amounts � Changes in will water. Persons drivin motorcars 4 motoars disturbed, (vxlt+ tri k " y Tab le 8 (Cont.) , JCX.Damage ions`iderable in specially (?.esigned structures ; w-11_ -" -, designed game structures thrown out of plumb; r2at in"; substantial b�aiidings, with parties_,, cdllapsee Buildings W dh fted off foundations.Ground crack4'd conspicuously . Undorground pipesVbxokez. (lX� Rossi -Fogel scale) X. d 1 (�S6me well bu It wooden structures destroyed', most Ynason a•r.4 tjKPA �" Vii.{ructures destroyed with foundations; �grc: An& ,^ badly"` w Ncw ��d';. Raiis ,bo`n' . Lan'dsla de • ,eQnsitlerabXe from , riwerbairks and steep slopes*,, Shifted' sand,, and,muc��l,� ��Wa"tex�% :> sp3ashed;- (,slopped) over an . (X ltnsX'csace:l seep 'e ', 'if any ((rdas6hry) structux� remain stat�din t. Bridges 7r destroyed. Broad fissures in aground. underground 'piPelines mplefely out of 66rvrio6. Earth slumps and lard clips in , s � t round. Rails bah reatl q, DCII . "Damage total . Waves seen on ground surfaces . Limes � of ` sight and l'e�rel distorted. Objects thrown upward :into air. 1, Modified • +!, excalli Iftt�ens_ity Stale of 193'1"r by Haxry b . Wood and t<lo'ann, iullen of the Sexsmo"rank Ne� ganciety of America? Vol. ;M4j Decembet 1931. . 12,No. ,a f ." 1 `I 1• it i ,A tT_ G a�� .._) tl 1.3:2t` :';acio-- "r•^mica' �aarrls , Socio-economic 'ha%arft dor Butte County are: DekeIsion (Who esa Le/emploXment) g „ r Epidc:miers Crimc Traffic Congebtion 'I raft:ic Injures' and Fatalities , f; PnerrgyCSverdi&f _s a i3ut``:e County" s ed.djac*,,v The �l rersity makes it strong _.: in periods: of recession ana depre�sio i. A high aqk�dul- ., 4 .. Iti,ral baso, a large xotiv� , ent commua�:.ty► and a' 'produc- t�ve logging/iutnber tIndust v provide the eddt-prd e :div,:-! ty that makes Butte' County, strong, Epidemics can be a problem in any area when thew happG_n. in recent nears severe epidemicz hwre been ,few: However, t op1e in the remote mountaino" areas axe 'removed from ? immediate "iftedical care,,dhd thus are more vulnerable to fatal sicknesses. w c ' Grime, ospeciall vandalism sof mo y �iinta;in homes;. has been on the upswing in the past decade in most of California. ButtO Coiinty is no exception,. Acre' Rinds ate needed and spent for police protection every year and the trend is expected to continue~ Traffic; congestion and accidents are a °prohlerft' 4' t� Butte, Count -y;, especially in mountain counties. Chico�k nrl Oro - Ville also have h,d some ,txa- fid congestion and iaccident problems as population growth has outstrippdd t Anspor- tation k,�cility development: The us.e of energy in 13utte County> is extensive,, This County with its Iaege size and rural nature depends mos+-,Iy on the autonibb9.l{�. This mahos the use of gasoline �e:.'brgy, notablo ` s � ` _ration must"1 CCJ'1't a1d be given to rtaa.se as a pota,entYal: soN � ' r~a7. hazard I'f w Noi8ey a byproduct of numa°h activity, is principally Caused by Mo,'4,or Vdhicles bpotatingj 'upon tho county and state high l: way sksterIIs, by industry such as lodging aria sa`wmi] 1 ops= eratit',6s; and by two mainline r►p>�.1toads s IPWo air carriers several gendral .aviatio'n airports also contribute ;to, 'hoi.se impacts t tion 'rips icitntial ci-o munitio: "Clther sourc xs o noise d`,st:urba`ncia are reeroationawly tai „ ;Iotl and 0�Cut; from thn .opera Abh of motorboats r ski,- me 'highway �ile:s; anii . of motorcycles (So -0 Ta;D1c 7). TABLE` 7„Y} . ” APP_ ROXIMATE SOUND LEVELS OF COMMON NC � iy 2 't INDOORS DLG)BELS L�� P �EITrld�.r,R3 140 THRF: H(3: 'fy of' It� i flt qn v1 ) © �> 1130 Pneumm ic�4 s NJ r Cr] if t i 1 l cc r o 1 <��• ��� 0 LL 4 o r r 0 A", a`idy l I n r o �a. d 110 K _ R 5 f. T t t}) b ra, Jet F14�,iiaer at rl poo f'., InsI ee%ubway `train, 100 ' ° 11' .(New York) Farm � Lbtor p 30 Mofionycie at-5.1ft. -� Pood Riender at S ft. ct e, �,.� Dles w Truck a�" 60 its c; W ' ,.; Garbage Disposal at 3' ft. 80 fJc1t s rban�Q,aytime„ Shouting :at 3 ft. K - � Carr4SiS mph. at 50 ft. o Vacuum -Cleahet>at 10 ft. c 0 (13 Normal '160 ft., la Normal ,S eech at 3 ft __ Corr�ti 'ecial Ar R Conversation 60 Air ,)on. r at ''0 ft. BAck ro 4.ditlob j�, y W g find Music r� Large 306ihes5 Office o Dishwasher, Next Ruoom _ 50. Q4t iUrbaf n 1`at i 0Q ft, 3aytime ti 'Very Quiet Radia at 'I.;ome --4b--t"iet; Or* Nighttime Library Qtd,i''Suburban Nighttime 0 . Qule;t Rural Nighttime Concert Hall (backgrEi'bad)ss P , 3rbacicasting audio-20---a5 sur ., cs w Leaves Ru"stlin THAESFiC7Lb OF HEARING- ;, Adapeed from '"Awu a'ame�t�" * r, ,. ; ;�� �� t7� �.�: �, � .4bat`eirt�ntot'!r'�,ghway ffi�it✓at�e. 41 .1 Th'(these activ�s' adoaccadU to 'saro ,for long`'period$ of time to highintensity no se an "fit a ,, i�wer �a,g o the, qua��.,�y of la,�e as noise int t d/r0 zi in reas mf human aot� y and produces nuisance aid xo`men,al , qua] ter 0 Natural Oualit . /r Th � ., a , o iuk . ; ind Nater guaai ty o f-'° �utt`e` County is g G� 9oEt:��i� aoeair: and aesthetic vaes o t3�e couz�'E; are �ea�c eyi,j o the area a:* an attrattive place to res:�.d� F in' gany forms Js abtAdant it both t"hd vvolUy 'and Iild7LtEY�t ' are'aS ,, a� Some , a � ng 40 "the as dsea� aue c� t a� as ac :a a� ens ,.� yn e,�,en�t and airy gtaa?.. tyn ur�aanixd ' a,eas is "degraded o"4'State and., Vederal, 'Ord ;nariees and lags toqarding Q P4�1] tri A;r n co�ttra ark 'being .a mill a Bred and 'ftforco'd *dtli the �oL�.ultaz t de�!rense in pol is becoming more no ce +abs e i t )4(3 Pas Mk„ li { ..t y�y� b �r�n �. the $, y y .,, q r,�tttttt �y 7y y EXpeK: t' .+t i t ja.4-1 .t��.✓�5�. �w+fva �4�rOvcr4�..,�n o the +nLy� Ga 64w��r44Fy�a i quyy4��yy,..k +1 r+vF AY:I ,,fta +�'i6�. County i�Yre bhcaing re�e�..�A4�w.-edy�rd,�i#S-tR 0..at�O rttkI�+y y ' roLlt�'i "Ant3,"a, i. yah!' Ii1.b ninq ��.i4 "a�q f vnb Yev�`4e.✓°4d.(4u"1 n N;`ls4ai�±.6 '(wi�pn U- n—;! y I 6Ohr, ' i p i"rd�'"r"_iil, ��13.an w ��,�w:' ��e�tt"a4 'fie i+k" cc;+� nwl ?;r tin area of high c�nd: etw'.t_j gua,i ter m 5 I ,. 4 n 21C1Ep� fJC'c�I'►CJ�l� r' <��,� The guaj"Aty of Itife in "tte c6unty, bias mtade it one of the attractive in CaliEornia Suttd ti\inty has: an ab7,%ndance pf dears duce pleasant and oth 00tt6 Vj"...Jdjr�e hunt a BUt"_0 aux t ' a.s also Gf � )-"4,"jwn for i,,ks sp6t,t-.0-h�, g In i'�.z ;Rk;merou streams andel "w;! .' Th3'.s; County aYs h4lns an ab,�Andavico o mountains aftcl'' �� •'' Ohere , l�: nq, S-,,zter J�, discs a�i,r" saic,:,r rkiing can be Cllliio� A:.6L Matt WAversit ., 1hico irk located In Chicon „ Cali o` -�;'; �. T,�lo school, provitlos a soc; al canter for B�a�'�e ; Count, ,,ted Chico its401. 4 ' Tiex s colle5e 'winds not onlyes-, tee .m b tti. to the, Count,-,. A 8 at -p CC,,hinty has! a r aral a tz,,-)tr. c r e vi th at abuitdan e of cleat "alr and t11dc,, open spa. c-s . Many* c`y f t,.1�e Cotmties' towrW � are 1.4tgo enourjh to provide, the ;.xoo` tal neoo.s and di�!sirea Gencr6ik'yr a3. human aat'ivity an4 p0pzAIAtL`ors increaser the L. tc� a ,, ,a round ago, s jo eI giII incrismse. This' noir+ r , Y, o C) . increasd'+can `he con,tro1lted `1t0 :�1ozne degree anc ,"rhe Fede` ; l ° and State govOrnments have already ii�iti ted;" programs" M reduce 'noise from mvehIc otor is, trazns,a let aircraft t and,�miYscelXaneaus house -hold appliance:, noise intrusion �� and is lona-term hi z tOQus effects inion, human . physiology r� ,! �:an be further mi;tizn x;ed -through careful' pianning 'at the .. " A l4�1ocal age nay level `cor goad siting o£, high0ays, air s r ,: rail roads , res.31 at4 areas" and. Commercial and industila]. a� area C centers. fi r. The quality, of the noise environment. in Butte cotnty can ;f it generall,y be chararteriz c as good bAecatW,,r of its agticul-� Lural a and. ,` se" at its . e - and mountainous orientation moteness from major ubba centers However -4 unless "cc►Qd transpbrtatiloin ;Manning is ,"established for future growtix and prosperity. �.t'�will hi Ue a matter of dime osiers I degradation of the current le vel"s of. noise qualkty is have occurred. B.erdause location ca.f, much of ttie tray` spat Cation netwark is, F ysically d�.etated by the moun'taihou.s , terrain, additional. „care will be necessaryin Order tai ruin- tain adequate s9paration of living arekCs , work centers , ;-- and transportation arteries and" thereby "insure Continued minimal; noise intrusion upon hvnman be3ltgs l F rt; p m '15145F 'Envifonmenta� �m"7 act for. the Se. sm c and Geologic, Hazards p Section of the Safetly & Seismic( Sa,fct Element. r,� (a) ;, The Enva rvnmentdl lin act o£' the V 6pos"e� At�f,l on ;, '' The environment1,1 impacts of tM� section aro,� related to the policies r,ecenniended<for`adopti�on. Since 'ttle pol>ic -es ;; 51 !enumerated dean with protection, and mit,�ga.tlon measure to 1`esse7 persona ha„ ard, and proper��y damage fromgeo f,M gic and seismic risl:sy all eval.uatiorks will :deal. with reso Dpavt? cular `requarer,4ir, �s of the Safetyr veismi.c Safety\, r.. �:✓ i elements, Phase .l Policy R- ommondat * ons , Adoption of these poiicies J ; :> w` will, on a general basis, increase open space. desigztations, transfex or re -direct land t�>e characteris0c,s 'encb rage",' private and publ,i.c exponditt `res on' -tail tigat'ive programs, and vequire rea,ssessm,,ept anti modification oX structure design sta.ndarda, Determination 'fipa' \ sped f c, areas the County cannot�e Made at, this time since infprrnation and policies 'with any specific i'u-a.ti o critera are not pre- ,sente�,, if the Count)= dries prepare specJ.-C �,c area informa-- tion > isrtpacis related ta,: per5anal hazard and Loss of pr-`' Ea per°ty could be slgni.f,antl,r reduced in.._those;areas 'y , f�c .nwers from surface rupture, q ey*axi.on• cnr;.pge, tilting, arYTIO' Shaking, Slumpin't, lurc}�Ln"g la.ndkid'e,s, subsidence and' li`c]ui:Ccation presently ,T Phase IT: t Aciapta.c�s� --X ;th.e policies under t?���; s��i�`iona ti�n�uld once a in veneral�"b ,)a��.oca.tc larger areas of open space r4, and would, pxoha,bly i b' quire lower clensities + residential ,and use „ lndustr. ia, commerca,a1 and publi land uses f which are Ced,; in are o"f "Ceolt�gic1azad" would.e,it]ier have to be reUcated o(r.,b'come con,ii.ti,oned.; o certain Flo- 8d.gnystdanda.xe ., all.evia.ti.nrisk to personal ha.tard or �ro- i putsl�.i�-,'a.ncl- riva.te funds 't;�o�al.c� be allot ted for prepa`ration and/or tev�ik. c clos�g,�� p�an� ��' aux �,ng3 neerxng geologist, f Since no�/ specific atreas have been desi.gna.ted under the "Teologi ;: 14a,"axclt, parameters noa inch s c1 al a �ea inpa t smencant be made at, this asses�tim�� ��, `� `cen;ea�, have beenk� deglgnatet mitigations cou l d he ins i,ted to toduce x adverse iptzts to the health, st�fety, , olid general welfare; l' e �a 'dopta on of ] ]ta5e ;til ,9al.i.cie ! �roul d require t t0'Cotiry, . to undortake a major' cobrdina rid pxograa to linst'i,tute ordinances and cnforcement pro �ams in �4hich �f itructure s , pres fitly located in ha.4aTd areas;' would be removed or rehabilttatod, This" pra�gtam mould also require that. present and a�)ticipatod public wdr�C.,a facilities be 0 reviewed a's to th is con ori ,lance ,with policies and Stan- .. r, aaj«its recommendo.&--i,n this text. Coordination of allpre.:,, .09- r t, l' 4 1 .' nS vious activities,, into 'a Civil DisasterF?r.ogram would also_ be r'xequ'ired. Fin"ally, a pr6gr4m-of edu`;tion, to inform the general public of ;geologic hazards, could be:required.. Implem.ent'ation of this program would require,, major budget recognit,i:on. Additional open space may be required,. t Specific areas of :impacts Cannot be assessed at this Lite. „Phase IV .Ado tion of Phase IV' policies would ger �l,ly projections -of programs, jm i.emented'under 'Phases roµ�ec p and III into long range directions. The impacts presenter3 in those Pbas,es are relevant to this section';} r (b) Any Adverse Environmental Effocts.Which, Cannot Be. Avoided , s i TPropos, a is Implemente 5ince;no substantial adverse impacts have been identified; there a -re no (adverrse impacts which cannot be mitigated.. Adoption of all policies recommended, al,ong,mi th future _J adoption of specific Geologic Hazard Areas would reduce impacts on human activity associated with earthquakes, landslides, and soil settling hazard.. (c� Mitigation Measures, Proposed to Minimize Adverse Impact. As stated previously, 'adoption of all policies recommended yin this element, along -with they future ad'ontion of Ceolo-� g y , g p_ s to a.c Ha�arrl Areas would miti ate otential��ha7ard personal life and property, C T 4`} 'y` exnataves to the Proposeton: i (d� Alt d Ac c 1. No Project - The no projoct alternati kr, ve would leave the ounty under presenw. regulation and policy guidelines, s� t1 More art,, presently no specific.. standards or recognition '� of �c hat axd�s in the "General Plan Deni`a1�of thin � q Element 1,uld defy State Planning Law, > �`�rmp`act z �of this alternative" are difficult to deter pest records indicate no major adverse impacts 'assnciate'd withgeoio'gic hazards, However, with assumed. r 1� poptils..tion�rorUth �n the Count; and a large poi tion of `; ,the County presentl;r in uncl.asl>ified soni.ng districts, 'the potential, for major adverse' impact tasfka resul.;t of gee agc haza't droll nr:reas e The no pro' e4t alternative c r. � t�da.!1e late potentialyinp.act, .� �.._, 2:' Recltl .r,e "Geologit: Hazard Areasl' to,l,e Defined .rather than al' tate respolrsibility of the d�unty toy de, fine ,r "Geologic Hazard Areas" at some future I date,,, it Would bt possibl>o to require the aei�l.vity at the pro,�ent t.iine: This rvotild facilitate dixe tion of m� t.igatIvo programs, and WOOld lessen the scope of policy fromY1 0 on'tire County, c) to spetific target. areas. This activ�.ty'Would alsu allbW specifit:,, impact assossment, on triose as',v,a identified, as we e.s assp' sment of poss blo changes in hand use sand �idential grow�u:��ry-� t;. ��,�_ dc, > � (c , 3.` Deletew.�olicx:es Deletion,of pol„icaes recommended in th��s element is possible. Since the presents` policies have oui ty-wide focus, deletion of any of the policies could cause substantial reduction in, the goals s and objective of this dement. If deletJan of policies are considered., a frrarpework for considering potential effects of deletionsh&ifa C., � U, be i17i_0-,i,.fLAed'. e1 � ti r , , (e) ,The 'Relata onsht Between Local `Short -Term U sos of ..Man's �._ ..._ r Envi o;tma tr and the METantenance and. Bn ancomefit of Lon Term ro, uctiylt_y ` Once a'p)a n, without del xneatibn of 1 Geologic. Hazard Areas” the'.relationship between 'long-term productivity and short:- } term human uses uses as difficult to analyze,,, inggeneral��terms, '-� of areas which would require exclusion, ox'restriction. of human,. occ°upancy are co4�erminbs with areas that `yield a 'raluable natural resource, a beneficial rel,ati.onship between productivity and this ,element could b-6 impl,i e,(l; Conversely; if areas which 'hav'e no special resource characteristics :and could be used (or, are being used) for human occupancy were 'determined unsl fe, the resultant relocation of gift to areas which havto important' resource `choxa.cterist cs There would then be an, adverse relationship between ,long-term productivity ajidl,adopti,on 4f this element. Any Irreversible Environmental Changes Which Would Be Involved in the,,Proposed Action Should It Be Implemented: No substantial or dramatic shift in human�wctivl,ty x� anti- cipated as al result of this project, .Therefore no majov irreversible�\et'iviro,nrnental changes are anticipated. (g) The `Growth-xnduc.i g Tmpact of the Proposed Action; ;Adoption of this elrnent should not ctlate any major surges in population );x -q_ _th As stated previously ,"'possible iredi:rectibil Or la- tion of-pb'pii' ation within the Count}` I . s probable, Redirection of p0porlati.on to areas of present residential use could cause incr6 'se in'population (density, possible minor increases in local air pollution) and other dverse and beneficial impacts reldted--to pcpula.tion shifts r edirection of population to presetitL r),�,�iiin'habitod areas might cause reduction of tb5burce, incremental" changes in local ecological , r,tsteiiis, fttensi:on of County services and other related "'hipacts s it 15143. 'Envranmental Im act a(1r the W`lyd'l.and Fires f.. 81 ' 8li.ction V.J. the Safety Element. (a) The Environmental Impact of the Proposed: Acte on,:' Impacts addressed here"w11.1, refer to tho"polz`Lies and "plan imp 1ementatxans enumerated in elle lfi:11.4land Fires section of the Safety Element: �Beca`use these are policy ,statements. -and not a, direct physdca1`-,_action,, 'a dizect erivironmen�al impa.,_�t may not be' ap,pli.cable and yi1,1 be so inda.ca,_-ed. A To limit the extent of development in areas °off nigh fire., Mgr az,ard mar include astib,5tantiaj portion: of ;the county"` depending of course on the size a£.the..areas ,deiinea as fire hazardous. Hazardous areas. are generality those moiintain,ous, forested, or 'brus.h areas with a, slope of over H or those with a continuous flammable, vegetation cover. r' Using this ,definitan; r °(;c) Mkti; atio'n Measures Proposed to Minimize Adverse Impact 1. Firebreaks should be planned and placed in areas that' Would not substantially interfere in the normal. vegetation ��Ltterns, naturp,.1 water courses;, and habitat and migration . of wildlife, Z. The County cc.tild consider a program of controlled `burn- ing., in hazardous areas to help reduce r.,th:e �int�n5i` of- flltilre fis'e5:. `3. The County could provide "extr ll" fire p,rotecti+p in fire hazardous areas in which development wouic,; otherwise be Ymited. l t and private ' (._.:�4rantsewhichtw�ould1d. a;i.d�pnytherfundin, o fFederal` g g aditional fire suppression equipment 'and personnel, (d) Alternatives to -the Proposed Action: Ea 1. Through appropriate"zoning and tax a,�.sessmen;ts the County could designate alternative areas for development that would not lie within fire hazardous 'areas. 2 . The 'County could engage�4 �in a regular program of eriodic„ g p controlled burning in certaiA fire hazardous and f.1re-�cl.imax ,,;ecosystems. ''has, could help` reduce i.ntcnsity of` future maintain natural-•cwo'iogtcal patterns and f�s1steinsn out Th%7 s, program .could be carried underthe dira��_ ti. on of the ,� Alifornia 17av sa,on of Forestry or the U.'S, Forest S0'�•;`ri.ce, 3. Fire should be, considered in some' cases As an ecological factor and a wildland'management tool. 4► The Cbtnty could completely prohibit development for human o,ccupgncy in; designated fire hazardous areas and those not presently served by4a near -by fire protection service. This would es8entially limit development_ to the prof ected urban areas of the County. Therefore th1�del'i'very of County services would be limited for the most part tolthose urban areas. The fire hazardous brush and timber=mottntalno'us regions would remain in a more natural state and subsequent fires would not be hazardous to human life= 8. To consider' the t!no-prof ect alteinative” for thi.q, General."Phan Element would assume that land use policies in the fere hazardous areas would continue as they presently exist. This would allow development of po•t:ential safety throats to human habitation to ,occur in these areas). T present number and intonsity of fires and related damage and fire protection service would preva'il.4 5 The County could prepare an adequate llild1`an.d Fires 'Section of the, ,safety tlement which would Gbmpjy with the objr-ctives stated in Section 15141 M of thas;) imp4ct report. This would not only meet State rgqu reitloats„ but would provide the information neede', to _guido s���"o ajad , ,., appropriate land use decisions in fire hazardous areas. It should include a map showing fire hazardaus ay sy i evacuation axid emergency equipment routes, a. capit'aI improve- a ments program, present level of fire protection, and..speci- Tics„'on road widths and budding clearances, (e) 'the RelationshipBetween Local Short-Term Uses of h4an"s ,tiTonment and the Maintenance and -Enhancement of Lon. - LL Tertn ro ttct.JNa ty t The long-term effect of 'this section of the Sar,4y Eloment 1. may not be beneficial to the people of Butte County that ( it i.s; an incomplete dbcumei;t and does not- meet t`eQuirentents of GOO nien.t Code Section 65302.1 cor the CU?fclelanes LocalGeneral Plans established by the California' Council on rt ;IntOrgovernmen'tal K -1 tions° . .also does a at- s°atisfy tb�c; obj eetives of, the prof oct identified in the ,,report and Yn "impact Section 1.51.41 (b) of this report., f) An Irreversible invirr�nmental Change s-,, Which, Would Be __��____________ Involved in � x�oposed Actian Should, It Be Implemented,. ,...� , Irrev exsihle environmental changes that would ar...cuv,� are ' difficult to ascertain because,,specific programs „are not completely, described. However., the nature of some of the enumerated policies could, if enacted; limit the extent of development in the designated foothill and timber mountainous regions; intearupt certain ecological. patterns, and incur additional costs to the .County taxpayers (g) 'the Gr6,wth-Inducing lmpact of the Proposed Action; The policies of this Element could alter the 'pattern of The dental development especially in light of ,the popularity of foothill housing and subdivisions. This may cause a more intense development pattern in and around the valley urban centers, This may cause a more centralized County service delivery system in that” there would be less remote residen- tial development }, is y } 15143. Environmental. Impact for the Flood' Hazard's Section o_�t11oa 'Sa ety Element (a) 'The Environmental Impact of the Pro,.posed Action; ` tA) Impacts addressed here will refer -to the',; policies andp1aZ n lip lementations enumerated in 11he, Flood Hazards section u ofl, the Safety Element. Since these are policies and not -direct physical action, correspon ing elIvironmentaI impact may not be appropriate and will be so indicated.° 4 .z" If the policies of this section-, q l Vae" Safety Element were to be enacted;'additional ureas in the County would be, sub j ect to sgme development 'restrictions The extent o -f these additional restrictions ,would depend upon+', the dd1inea- ` are not actually des -m . ta.ori �of flood ha�z�a�rdaus a� ;w � > r'�as wl�.e.h , Gribed in the report. It wou,, d have' to be" a 'sutned then R ! _ tha.t�,,thes.e_ areas would btu those along _the batiks t e e _ — 'Saors:menta' andreacher, Rivers and tl &--1ff —q E€a,si area. , This would elimi- ate population, ; cent'e"s ,and °the need for c� County se'rVites it those designated hazardous areas. The alternative open space Viet of flood 'pI i',ns may tend , 'I > tq alter development patterns elsewhere in to County. Flood plains may, become popular as rec're�ational areas -� rr' depending of course on the location and the type of facil- ities available. Public acqui.sition for these lauds wou4d incur substai tial costs to the taxpayers: Continued -cons'tructYon -o-t- physical protective ` works. such as dams, reservoirs, and levees could have a marked detri- mental effect"on the physical environment. For ihstan;ce,., construction of a dam not only alters the na.turai flow `off, a river, but also inundates and destroys various riparian and canyon ecosystems, This would- result: in the death and relocation of many animals and their habitats.: A dam also interrupts the normal flow of silt, 'sand, and rocks which are important factors in the maintenance of a river course,„ The actual eff=ects would be more ad:oquately addres°sed 'in an Environmental .Imp et Report fora davit project, (b)' Any Adverse Environmental Effects Which Cannot`Fe Avoided v. ii if the Proposal Is Implemeiltedt 1, Development i�iay` �.e .restricted in certain areas des'ig- mated as prone to flood hazards; Development pattetris and s-orvice delivery systems may be alterod� , . Therd''may be increased costs to the Coc ,?ty and the taxpayers to support additional flood protection facilities, 4. There may be an interruption of natural ecological. pattern's as, a Trpgult of constructioft 01 addi,fional flood protection facilities r -US � ,? ti, Iviitsgation (Measures Pra osed ,�t o Minimize Adyexse -Im act : 1. No mitiga''tiorL measures are posed for restricted develop- '� meat in hazat ous'"are is as those restr:i,cti.on;s may,, W0119 r; Wiest serve to protect, ��Aoss of life and hropert) `i 'D 2. The number' and extant of,, additional' flood protertiono ,. ed. to those could be 1,�m1�.t :whi:ch' a��e deemed" absolutely necessary f�o;. emergancy, flood control to Fx�o7) fi5ec�t- wildlife and the n2 tura3, floy� of rzvers and ,streams,,, (d) Altern&tives.. t,o the .Pr.op'bs-ed Action, 1. The,O'County could completely restrict ans development' in the designated flood, prone areas. This Wtiaa greatly lessen the to-ss of ,life and sproper�ty 'due ':tof.�oods aria would require little J. ,any need for CouAty supported�,sex;= r 2 ." The ''no 'pxoj e±t" a1 texnative ',soul d a nrtolve'� contivati on 0 o£ present flood protect' programs and development :resp trictions 3. ° The CQun�ty could prepare an adequate Flood Haizards section to the Safety 'E1er, ent _h' oh, would satisfy the , °obj ectives stated In Section IL1) (t �) of thl.s-=`report include maps showing areas pr"'; i-b 'to flood ,hazards1.; j LC,would all flood control facilities', evacuation rotftes, . and a 1'1'1 / ., capital improvements program. It should also contain policy 'statements that could impleanont a, program of' -prudent ;lar,.d use in flood hazardous areas, A (,..) The Relationshi Between Tocal Short-Term Uses of Man's Eny,iltonment 'an . the Maintenance, and Bnhancement oLong_- Term ProdUct1v,jty-__,) ., The longterm" effects of the i1n 1er�entation of 'this pro ect p t, p 7 c r are a3.ifrxcult to ascertain 'n that a complete and useable working document has :not beer; )presented; A certain degree his,� mhaza�rdgdocumenttter i Vwhich enhanced,, ifmthere�were 11 alit�completetil, flood Could aid in future', land use decisions.. (f) Any `Ire`eversible l n�vironthentai ,Changes llhich,V'ould Be Invo.1 v6"d in the Pro ose�c Action Should It Be Implemented: - res - Basically, the only irreversible environmental changes that throughp of this 'safety i elementuwould"be ther' .s'tri,cti onnoftden e, development in design c.- :,nated areas Which Wotl'id e,ssentibAly become permanent-open r space. , (g) The Gtot�th<)Inducingq Zm. act, wof the Action. The policies of;,this element„coul,d alter the pat=tern of v Y"' �� ci��. "� .t� •a',u u �i a `'.� n 4 Envixonmental Im act fortheScenci hwa' - _ (aY The,,Bnvi.ronmental xmpa t o the Froposecl c'tion :{ 1, .. :. The ,Scenic Highways element of the Butte Uunty General Plan does not relate to any specific physical project. Rather, it relrtes more directly to secondary. effects - which could be reasonably expected to _follow from the adoption of the Scenic Highways,, Element, consequently,: any potential environmental impacts are not as readily b identifiable as those related to more specific construc- tion projects which could follow as a result of, ct phy'sl cal development plan for :a specific prof ec, ln`.,fac.t, a;' impacts of the Scenic Highways rG"eneral, Plat Element] tliy have been minimized since the element lac ;,the„specifi.- city related to the eonstructi.on of a„proAj , 6t,. T.he Scd-iic Highways Element covers a wide range of h�ghwaysi 1pda'o1�i� '> in various parts of Butte County. 4The Sc ac Highways (!. E1�ement wou;i.d relate to” bath public and pr rate projects °,both existant and planned„ which could be constructed along highways;. designated as �S,cenic cost' idors The effect of scenic corridor or scenichifhway "deslgii.a- d o n. on existing development could not be determined nor could the potential impact on projects ,which could be t�on.w \!` structed within�ihe scenic corridor in the future. The Highways Element do(,rs not entail the' acquisition, development, e±;” operational activities ,associatedWi th a, specific project. Rather the Scenic Highways Klement relates only, to recommendations for future plans to esta�- blish a scenic highway program-. Therefore, only the- probable impacts of continuing t'h'e planning process to its conclusion in a arr.;Lion program for implementation can b"e considered. The vcellic Highways t ement suggests an ev*aiva- tion of pot.ttntial scenic highway*s based on a systematic - 't t�. "ocess suggested, on Pages 5 F 6 of the Element: The Elemen' ,q g,ests that a classification system be ini- " bated an `' ire c�yharacteristics evaluated as a prexe�,`,Asite to adoptio� of thos�l_"�0,uideli.nes and implementation pro- gra"ms which would estai>lish the ,conic highway program: The impact of the Scenic Highways tloment would be the i �,.._s0condary impacts or indirect impacts which could be asso- c�.ated at some later date as a:n W.3fluen.citfactor in �r1 both the and quantification of development along the scenic'��;corridors. The establishment of a sconiEc , high ftat program and adoption of specific implementation programs, i.e, scenic highway zoning, special setbacks, special,,building 'restri.ct:ons) etc.; could have a direct impfzct °on the "development, patterns along the, designate6 scenic corridors; Imp mentation of the-scenic highway ro ram could influence physical os and result in, p g' p �' g than al"teration8 in the typo of c"tvelo Ment occuri,ng along" scenic highways and subsequently the ecological systems With are locatoa in scent c corridors ..,(, Any alterations ih the ecological' system,.'Woui d be problematical based on ; .108- , „ a 4 , future development patterns, influenced x10 `:`, 4on c .h �;l�way program,. The scenic highway, program chd tg—.� development patterns could result in the shift in population distri- buti6, or redistribution based on thF charactoristi 's of a scenic highway pxogxam which gene , recom'tnends lower- rally 'intensity uses within scenic highway cor..xid61r.9 The r scenic highway program is 'intended to �r0duc�e tb t4infiensity of land use along scenic highways sand ��ae, ie charm` )teristically,, -reduced population and building concentrations"in- s6enic corridors. This generally, would lessen the Zmpdct ori tlp a resource base such+as water, air quality, and- public se`r'- vices . ,The reduction of, the lessening, 'of the in.t'ena ty, ways may use in the scenic corridors and along scenic ]a'igh- of land. us e o then Have an economic Impact. in that .high int�ensity eland uses such as commerci ��J- and"�.nd stria,l uses ,gg P are note. su ested as com atible usesTi scenic corridors . The "principle environmental effect of th.o 5e n,i.c Highway's McMe.nt,, of the General plan will, be an acti,qn program to establish ,scenic: corridors and scenic h.ighVtLys as a ,, result of adoption of the Scenic ,Highways ,Element, ihlis" fY action would result in the lessening' / land "use inte`n sity,,along the scenic highways and smenic corridors, pur w susjt to the corridor protection proi�im suggested on Page1 , g y y • z ; n Pa e 8 0� -the Scena.c T-Ia. ]lti�a s lemen4. O y - '� 1,116:6 ri Cannot Be A b An: Adverse Cnvironmental hffec�s 'Avoided �. t e roposal zs �>inplemo.nte The pro;'6;ct is not related to physical development and, any ad�erse ezivironmental effects can pot be antic;'pated based on, the material: contained A thin the scenic highway,, elerhent, The project is being pvopose'I as a re,su,tt of State Government Code requirements and any; future)) adverse impacts would be solely dependent upon future lo,islative action to adopt tho$'e programs nece�!�r:a.ry to imp;lemen:t a `1prog ram based on, recommendations° based on the ener'al, y 'Plat hle nent: T (c) Mitigation Measures Proposed to Minimizos Adverse T!gLip ct Since the proposed Scenic Highways ftement did not involve the construction of a spec,!�,"ic proec.t at a speca.F�,c.. loca� tion; adverse impacts cannr,t,_ lie hypothesized or measured; tr Any environmental effects or -liiitigation measures that would be necessary to mitigate those iinYaa.cts would„ be dependent , upon future red istxit Union of 'developm.ont and a.ttendla t populations resulting?._,e��om a.n., impl omentation program re- sulting from the Scenic Highways ploment. r� (d (lternatiyes to the Proposed Action: 1� Since the Scenic Highways .glement is,. a Moot sated el,,.Ment ° pursuant to tht previously referenced Sta:i� Government Code section there is no alternative to lie.. � +sw �._. , � pt�oposed actioni other, than adopting; a plan containing alterna.tn.vo proposals . l ie "no pl o,j ect" a'lterna.tive of riot-) adopt�iirg F F1 Y: r f� r h ra Q5crY:;,ic Highways `Llenient„ dor the Butte 1; County General Plan :�5iia violation of State law and would 1e'avo Butte County , �,x nPrecipa tous ].'egad. positions. e.,�r�e rRelata onshi Betwe Ir w ` en Local S}port Teti U 3:os of 'Man's �nttironmentand C ye Maintenance and Enhcetrferit o . La��- Term a uct-viIt cr The cumulative `effects of the Scenic kiY. twa'y element can, only be measurer agaanst;_the potential, socoAdary effects 0 0f adoption of ain implementation program. The adoption of such a .program could have 'Aong term' eft ectin on the dispersal ocenic corridors or along sceni f proposed projects within sc,�,,� highways.: Since the probability is that the intensity of,.land use"and population d6nsity with these scenic corridors woutd be reduced it uou cl be 'hypothesized that r onmental impact of d velo'ment_wathin these U the em it P t, areas wi (l be lessened, thereL lessenxxt the .effects on e, the environment. The impacts��Ywhich may ''arise from e f 3; �"e naxrow range ofuses which should ��educe the riot,en- I'"A� rtaal fax long-term x�,'ks to health andaEety: i r Any _Trrevers' ble Bnvironmerltal Change's Vr�ichWould Be nvolve ink- xo os_e,� Pion S Quid ,T't_ i3P lmi?�;amented J ul �, Should subsec{uent programa fIr, the eat.a� lishm.ent and fk ,,. «; implementation of a scenic hIghu"L'. rr, :r,am result from tb"e �, ~,,4y dioption of „a Scenic Highways Element in „the General Plan,- 1an \, probable redistribution of population and cNLngii g deveiop4,) mental pattexns along scenic highways 1vo'uld result. Ssnca': the land use patterns and the resultant Activity 5yst°ms1, ''relateoto those land use patterns and populations esta— biishedf iiithin the scenic carri�iors would sh�.ft to refect ` , the restrictions imposed by scenic highwFiy ��esignatioti and 'sttablist men of scenic coni-l.ors the impact on .the envirorin ent would neces,S�iXily dir'�ctl.y xelate to the � e act,vitl, 0\8. Those environmental .impacts could (6ixly` e -� m,asutedi,'�n xel,at onship to the probable land use, patterns, and popUlatitin„distributions that 'would. have resulted had the area not b4e�l designated as a scenic corridor or .a sceriiZ h hwa��. There y+toul,a be no fussy to reach any degree of spetificitY in 'measuring the envsrollInent41 impacts resultinW from 'scenic highway, designation as opposad to the previous land use regulations 1111i�,h govern the use of c� scenic highways and scenic corridors: (g) "The ” Growth- Induc-Lig impact, o1 'the Propos ed a�.c�ion The °desa,gnata-,n o §benic highways and scenic corridoi, within the-Gount,y%shoul not ilduce growtA wth�n thou}'�..�;�m r HJR' " areas s Ince the -%recommendations, in the scents highwa, &toas "'end th restrictions which would esust "'r imple�`�entatUn p' ograa would serve, to Jessen the��rang� 3 ,> intens�.ty o�Y land use and the .probable J"0pu at 1, d"119 "' tri ry botion tiv�th�'n those areas, 'Therefore=t ass not antics = .h.. , j pati hats-.. t;he adoption of the Scenic I ight�ays blement j tl G , fi .. q 0 � . .1:543: Environmental Impact for the•:Noise Elemen. 6(a) The Environmental Tmpact of `th'e Px;opo� I Action,' . , a o The proposed action. �i.s to adopt•, � �A,.''Elemclnt for the Butte County Genera] Plan and does not ptopo.so physical r_. development o any type`, The Noise Element of the impact identifies b`3rioils noise ldvelsl within the CoutYty. As no-ise levels are': identif 'ed by`-"source�\and with noise leve<'fs pxoj eeted;, far the vara oixs sources.The° impact' of the Noise ;Element y"ill 'be to provide a guide and technical inform a* dox}i.to;findividtial G and organizations regarding the noisy ] eve]. -s ltof various activities and those objectionable qual i ties which may?) emanate from those activitiel� and°have an effect beyond., the location "of the noise source, The NO'Se Element of the General Plan will not res ult,,,in physical changes or alterations of any ecological system, nor will' it' directly result in the redistrib�tioh or concentration of population.1 The }Noise El:"em�ent' could have n effect on the future r talation,distribution':and Concentration relhted p .p to'tdevelopmentpatterns within th ; 'county providing that the _ data` cantaine din the Element �.:exatrig to noise sources o pmanatin ftdi ' the varxous't pes,l,of development. is used b Y P y , .41ie puba. cel in locating various types of development �i�ztliln �.;. 'the Cotu.t:y: ° ff (b) An Adverse Environmental Effects 1' Jhic.h`'"Cannot Be Avoided raposal ,is implemented: The Noise Element yi.11 `dot result the physicAl {?Jevelop- ;in ment or alteratior�/of any, ecological systom,. Thefe�f6re, ' prognostication on resutIts could be only subject fve judge- C)meats based on h)P othet�'ical development patt"eras which „ could evolve ::f the Noise Element is used as a recommendation for future deltglopment. The contents of the Noise Element "' ',result in certain dhvelopment patterns may eventually- hotfever; the mea urab e .effect; on t ,'-,,)se , patterns would roe "almos.t iMP6s'si.bl&,. , Alternate data--incl'uded, inr� the report could�tesult in alternate concomitant manifestations of sub-. sequent, use of the ,report in locating specific types of eleve,lopment+ ,.Impacts of the use, of the data: in the Noise `.:. Hement. in con)�un:e-ion t+full various deve?,opment patterns in < " the county, ,,mV eventually have an effect on surrounding .`„ areas as a so ondary effect; but the range of impact emanating from the pz` Mary area whp>re development bias . been directly locatedasa result of data used in the Noise dement„ could not be detbrmirned, c (c) P�titation Nteasures "Proposed to Minimize Adverse_, �atir^t , mince the impact of the Noag"e Elr�ment is laj'jely twtpendent on the snfficiencv 'of the data; as a document used as an aid,7to locate types of development or eliminate sou`��ces of 'S) noise related t -O specific 16i d US the mitigation measures- ' would be lilftited to those actiWIS taken by private and in j�rt pubtlit agencies,�grotlps, and individual$`; altering - posed dovel..opmei"It patterns or land useswhich have Aeon O I shown to have a direct re] ationship and/off, an adverse environmental effect based on excessive -noise sources as., identified.„t,rithin the, Noise <Elemerit. "(d)'Alternatiyes to the Proposed Action: Ir The alternative to ,the inclusion` of the proposed"No.`se Element of the Butte County Geheral Plan Would be to pro- vide additional inf orma`tion or alternate information, 'regard- ing the feauiremen ?, ,for thecontents of a Noise,,,. -Element as specified by Gov erilment Code Section 65302 Tho Aelatlonship Be'tiveen Local Short -Term Uses of Man's Enyironmen.t and. the Maintenance and, Enhancement "oft Long - w; Term' Pro uctzvzty - , ' The Noise Element °'ins not directly measui•a.ble in forms of ,the "effeet',, -that it��may have on _long=term pr, uctiv 'ty, however, it has beef; establishirdcthat, aural, 'in'tt is not �, K dependent, upon consc� ous awareness of noise and injury may occur at ame time =li c vill not be measurable until some �? subseq,tle; i time. The' e are a wide, range of physiological ,and psyJ, Plogicak inj l4rles to man :From �.noiseo which have been--ddk6i r trated in Various studios which may",relate to %,speoific mise sources,.',1t would be difficult 1E' nab;; im� p� �sible, iowever, to sejiarate� Lh.e xmmediater impact of noIse in, th short term fro11 the long-termrAlffects of mafis produc�iv ty, c' (f) An�kl:Ki eversible EnU`ironmeni al �hariges Which Would, Be ,. x_nyolveCc,< n t Ye Pro cased Acts on Should It Be Implemented. There are no directlymeasurable physical effects_. 'Which could be identi: iced as a resviiy incluein,g the proposed Noise 8?-,'ment in the .Butte Crunty Genera Plan: Any measurable ef,fects directly related t6 the Noise Element would be confined to .the vo-latienship oaf the material contained within the report as it relates te? the avocation of specific types of development, and their ,various noise levels, and the influence that the Noise Element had in the'deter- inihAtion of location of various types of d`avdlopment: Another ossib irreversible environmental trhangc, w-puld be the locat,ielii Ment with high levels of nbis' e p on of 'high ev p sources based on any erroneous information that, was con- 'Gained within the report and any subs'&g tent effect that it may have upon the population in the, area, s (g) The Growth-lhdil 1)hp4ct 'of the PILO aced Actions It is not anticipated that the Noise Element Would have a f� growth- indv�khIg impact on the county, A more probable x`esult should 'the rloculent be used as an aide in the loca- toori a.nd elimination of sources of excessive noise, would bo N e reaitttihution' of types of a6vel.optrient and a changw ing �`�and w C) 15.144-. Cox aniz,ations F . Persons ,.ontulted for 'Those S,ectioxis of the BIR on the Seismic Sa.• ety 'gin a ety I-ement References and Acknowledgements a Seismic and ueolo icg ,,Hazards r � l:.ft of Engineering Geologitts, Geolog� and Earthquake Haxards� Asso. a on ,: Planners' 1 de to the Seismic 5afet Element. �S..,. �} Cal i forni a C uricirl ;. onIritergayernenehtal Rel atibris Seismi c Safety em nt Interim Guidela'nes, Jt ly 17, 1972. California Division of Mines and Geology, Special Earth cake Edti Geo10 , ,�pri l -h>aY� `�Fq,;"V , �'�` "tion,'r Ca^7�forn�j California, Division of Mines and GWIogy, Earthquakes Be Prepared, by W,B.Clark and „ C.J. Harge, Sacramerrtot Ca11fdrnia Office W Mte Prin` i 'Pub,. Noe 39, Ap 1973. Californi'l qi isior of 1,1i3Oes and Geolo`§y, Matte Plan for California, ;by John Mrs$ Jahn aurhett, and Thomas Gay, "Sacramento: Ca ifornia" Office'aState Printing, 5'ull,etiA 198: 1973. Earp hquake Risk. `Interim Rep p k? ort of the special Subcommittee 'on the San Fernando Earthquake Study, Oct. 31, 1971. Fiv�_e Cairn. ty Seismic Safety Elemen , Vol. 11iii 4esno� Kings, Madera) Mariposa, and ° „ 110are Counties • Ha arard,,? Farth uak6 Stud • hri l 1972. 11 p ,earthquake Country, 1�i'Co'a•kc lane N°agaz$ne and Ebak Ca. m 1964. .aca i�P. I nterim 'Seismic tSafety Elernerr, Rurbai}k Calif. Interim Seismic S"afet Oement, San Bernardino, Calif, Joint Committee on Seismic �•afety-,- Meetiho the Earthquake Challenge, Sacramento: CaIif, oflif; ce of State 'Printing, 1974 Model Seismic Safety ElemeJnt,'Final Reor"tt, "An bi`e90 Region) Nov. 1973 Seismic S safety S�ijdy, for, the General I�7�an. Tri"Cities Seismic Safety and Environmental( Resources Study, El"Cerrito,; San,`P14bio, �1 ,I Sei smi $6fety and General Safety.,;El ements of the Sa&amehto :Count'v, General Plan: Sbi smi c Safety L"�ement:, !hg `owood .reheral Plan. , Sixty-sixth Resort of the State Ge logist 1972-197,1 Dept+ of Cohsteotion15134 P Strabler,rthur N. Introduction to Ph: sisal Gea rah , e y^ ' `t\ � �,_,•,..` � New York John t�i'� ey and Inc. 1965► 11.4 Tehama County 'Seismic Safety Element, Tehama Tri-CountY g Plannin Assistance Program Intern Element, Earthquake Hazard in'Northeast'California, J -W, Guyton and A.Li Scheel,Region4l Programs Monogram #1,,, C.S.tl., Chico, July '15, 1974, Folder --Geology. cif Local Are},� j „P Geology C) Geology of'Sierra Nevaa and Great Valley -Ma -s Geolo, of Paradise Area.. µ Geology Of the Orovirie,-,0uad. and Maps Jai Folder --Inspection and ReVieW,of Orovlle Dam Seismic Safety Foer-Se s C.S.UC. Spring 1974. Countr ,,Student Project. Geog. 222 m c Safety Element far Butte y u _ o Wi l dl and Fire Hazards Clarence, C.R, Chatteh, L,R. Principals of Forest Fire Management. 66 Ed. Recommendations to Solve Cal ifornia's;Wildland Fire, Problem, State of California, a Resources, Agency', Dept. of Conservation'1. , D�.,l of Forestry.., Safety Element, Trfnity County General Plan. Stateof Hazati^dlS�veritrDearttient Of , ClaC ssficatonS�stemafornGDaliforn�af Forestry, A Fire 4 !i l dl ands, bygar Heim, Barr t eaal nd Leroy Taylor, SacrpmeKO.I California Of ice of State Printing, x;1973 Folder Safety Element for Butte County_ Student Project, Geog. 222, Spring 1974 C.S.U(�'C, 0 Flood Hazards Dept, of Water Resources; ralifornia High Water 1973-74 Bulletin Noi 69"74 Novi, 1974: Dept. of Water Resources, .,Flood Control Proect.Mai htenance and Repair, Bulletin No 149"72 May 1973, Dept. '' _.� to, 'Investigation, Bulletin No. p of Water Resourr.es oer .,�cramento. River Basin I 1;50-1 February, 1969 1 J1. �) ;l Moore; Jerrold A Plannin foN'F1ood Dama'e PreVpnt on, Engineering Experiment Station, Georgia Institute o Techno ogy, Atlanta; Geo►~g Spocial Report, No. 350 Flood Plain 1965, --------- InfFea Cher and Yuba R.i Viers, June . p rs, ,t,rmatioh' .5: Army Corps of Eng7nee v' Army Corps of Engineers, Guidelines fnr Reducingl�?od Damages, Vickst►urg;''`1967' ii „ 11 t , i1 \ Army! Corps' of - Engtneert�, In Cal i fdr°n'i'a r An, ,193: „ Folder—safety Element,for Butte County, Stude C project, Sr }1n :197'q C S,U C. c cJ , i64 1,6 ���4c • _: :.- i ... :;1 1 :.... _ . .^. �:n Il„ ,. �7 .... - 111 a ti. i3'a o 15144. Or�a_anizations and persons' Consulted for Those S cions of the YrI on to Noise Element. 1 "General 'Plan''Guidelines"F, Calif. Council, vn Tja-,tergovern-, mental Relations, September, 1973 s- '"'Noise Blement", City of S, -3'A Jose, ;7.974 rf'2: "Quiet City "Report", League of California tiiies, January+) =1873 4'. "Transporta.ion Noise. and tts Control",U.S, Dept of Transport at. -Ion June, 197.2 S. ° Senate Bill #197, passed Colorado General `Assembly, °� 9�jI , , Article 3;5 6. Newspaper articles and genera. observations. 7. Cene al Plan,' City of Walnut 'Creek JAnu'aty, 197 `- Railroad) Noise a cl Em�s�sion Staridards'�, Bnvronmentfal protection Agency n' Ju1y;:,1974, Wash, D.C. .;, 9. "Public Utilities CodeV', Article 3. 5, Airport band Use Commission. 10. "Noise Standards for California Airports', title 4, Cal. Administrative Code, Subch-,��n,ter 6. t 11: ''Airport panel `Approves Take-of111, Enterprise (Chico Record, Octobex 30, 1974. 12..,"Report\,on Aircraft Airport Ncii se`", Report' of the Envir onmenta ,,',fbrotecti.on Agency to the Committee on public Wotks i U -'S. Senate, August 1975) Serial No. 93-8 U-,,:'8-; 'Government Printing Office, Wash. 1973) pages 14-26. i F r , 0'4 , r. .r. c.r^ G '" 15144- Or anizations, Persons Consulted for $„ o .. en'tax 'ec � ti�� 15142'; nVironm t ,s � etting; ,> G References ',a 1: Butte County BCH imber'�oCommerce 2. Put P�Coixnty Depa.rtmept of: Ayricul 11kp t o : 3. Butte' Count}r. Gets/ ral .Zan Q. 4 Butte Cn�tnty Hz.Aorical 'Sackett � 5. Butte County Office of Edt cation 5. Butte County Plabiiiing�•Comm s`sion r; AP eta ��, . Butte County P1`'' rnq„ D rt meat r ButteCounty iblic ForksPrnartrert fig. Butte Cc xn. 'Bl-4 iffs bffice' a 'SaL. 10 . Butte Corznt�r Survey (tl . S . 17ep`artmert o Ag xl o`ltiire 11. 1 • Butte County Assessor� Butte County teahna,cal ltdv sorb► Cor���f� tt�%r fbr 13 Butte County Qel fare, Department Californsa,"Ills,torcal Landmarks Dei artrrert`of 4P��r and RecYeatlonr June 1.471 , �l `anO Calky orn a His tori Plan-Volumes 1, 2 3 hepari-mf? Parks and Recrt-,atiolloll " `11 15. Chico Planning Department 17 Chico Piub,11.& works nepark rr1ti'', ti , 5,8. ° Dr. Keith J611SULnrProfes!i6ir :bf> Anti torol.oc t'085,Chico , 19. Gridley Public lJorks Denaetment F�.r Oroville Publ,,c ,�4orks Depaxtmrzint �j d;olle'e110N21. �iny 0. n .'" , "eater' Quality c6ntrol. P1 r�`',r �Califo,. la 5 a :e Water meso rr�;es o i Control Board r C.entra,l,' `IM it, �ti���an Sgi-c.t me' t R� ver °Bann „S-A and North Lahontan ,Has3.t A^�h ) 3 . 'Water Quality Criteria" r 'C�a13.fornla ,`tIte Wat ok Resources , . �. Q Control Board•, Second Edition b)� MC11%de and Wolf, F3 u ribl,icatior� 311. RC���ri.nt UeceYnberr,°x177.. <' ; r 74. ''Water. Pn.1jution Aspddi--a of Street. fityJfaoe Contaminants", Environmbntal Ptotectltn Terhno.locv a.0 , Offilte" of Research anA,1 Monitoring r 1j, S . th ironmentaI Protect-ion ''Effects : of bea.cinet Salts on W ter0 (?ua�l ty and `Biotai',► (ehc '? ✓" Literature Review ,and Recommenced Reseercl 'r National Co" Operative ViLgWay . Reseakeh Program, Repot 510 giihway , search B c�arcl,- Divi s ion of :Engxa�eer-sY�gr Nat a,ona t Res arch CcV%ci1. r Nata.vnirl 1�cadc'rty of Sciences National academy �> 2,f �Ylg"�.tte'i S� 1970 "MuhieiyAl and Rural Sahi tt tlbn" t;hlers anc Steel r Si>!th F;rl,itiori. ... 1f 27. BndGron-11lillr ert al ,t.: ciencr ,� + st)rahle� yin Strad`►� err a. �milbhoh P tbli'nq Cnq Cr�Y�� hri� ',. , Ha �� of 11'i, v7a ficin ` .5�5��,�.Pr 'Pal:lutiar thVironmehtal ""Im ott 2�. " P .�..,..�..,...:.�...�..�g„r C� ontrol Research Sr�r i eta r Ehvrorimrrtal Prc�teefi on 1gency . c� 1iA rim 1-o Method F t :aor hrI3s��l>7git el Asshssme _ - µ.. y nt hi t�tE? 1 f4?CtS: „.•-. of Waste . Dc os ori t�.� } tr.Dtrea lC,ir�m:�" John Cairns 0 Sr. and. Keri tk?th L. 1�1o?"son. 11 � a V f+CY,.,�' ..4 w:�^^.-.:\� ;':na n .., .. U 1, ', _ �..,.1 .. • . � l\ u- w 1 dJ (1 , 7 , . ' w'. .. I nN _ h� n �° �' IL "1 �1 ti s � 30 Environmental, caon�or t>' ,._. Y ,, CriantAr ` m ac-t c?� tip hw� u �n th� e Iiydroaeologic Envitorment itachagd R. 1?a , rol.. 3l'. "1t Mat on l Prockam of loc:arch fo,r Mater ano 0' .rphee- `��i� U ' S. Fiepartrent of 11cIrimilture ;bask.) lEorce,� I4a qr�q, . u �ou�en t�f Cali forni Na��� 32 En pact of. Groan •rat ion on, 1~oothi'3 �. Arar Moun�- � t- em4�er, �=u i471 ' r : tato n c lifga�riia,':` e Rollroos nc�enC�yt Department of Co_nser^*jation, D �7 a �S,vi.S4 n o Sbil conservation, 9 Cala:'fc:rria Depzr;ment of lCduca=tio' u °3. us137 �7 3'S'. Local Realtors anAN Bridle' ; ,Re+sa�?ents t- �r Y 36 . "California ° s va s3Arq Pasti,; . Micl ael 7. Mo- raf , Or Publisher Ira �l fordiA Ch;az�z�,;:� of Co tierce .Economic Sur!reV series 1 p �� � 38, Cah fornia be ardent of 1"tunan Resourc�+,s ' 61� ?3°9 . `Feather :Aive- �116s-taJ � � a` 7 !� 40 p Fish IC: �ls Caines By Pul xtibn 3'.n 1q�71 "s ° _'D . IS eiR A,, Publ dation 4� California bepai ent of is"11ane? bare 7'A a dent xal Valley.. Rf?pbr!rs A3 Sacrar;ento LnI4 Studies. 0, t)44; California ,Na.tive Plant Society a c' 45,. Modi'fi.gd Meitcalli Ihtens,ity Scale �'of 1;'9`31 by °Harry Q. Wood, � r1 cset'jy of America,# Frank l\ew%Ann' ± u�:, � 1 of L,- he S. o' ,. .. _ Jol. i2, PIo. �, >aecemb r�l�31 leacrical So 45.x;.,' Dtitte ,Co'unty Avyxculture ; Repprb z; a .. 0 rr F u 1 o , �� lr r _._ cz 'I 15144'.,,`9r anizations & Persons Consulted for Section 15142' Envir6nmental et� tin r _ t z J - i �. n PREPARATION STAFF u Chief Envi;rnnmental B;jranch (CALTRANSs bip°tkict 43) .) R, Di, „Skidmore Seniox 'Transportation Engineer n ` xrterd $ciplinar Team Coordinato ;l - r , I ' Na iuia7? Environmental Analysis, 'Plan'ner R,� Bradford - Associate � 1'1 Sot*o"'666nomic s,,� dies and AnalyslS t� J`.1 L. Schmidl,-. Right of Way Aqent: sr Transportatlon 'P1annin"6 '- P.egiQnai Ttan9pprtati6n ° ?len " n1 T. Ho Madsen Highway Engineering Associate u _ J. E I1eller' A!6ociat .6 ktiglIway Encs Air Quality Studies and Analysls i D. G j roster - Associate Higtiway Engin���r �A Na r Baker " Asioclate, Planned „ Water Quality cj tui'i es ,.anc� Ah 3.s �r�� ' b. ; G: Kramer' ,'� ��ssistant Engine413 t} 17. L :- Elete�c Enga.neeri.n�,�,Aic��'x]: 1, �, fl "ity Studies and Anal y, Noise Q ua1 ,E�sa C . Abshi r„ Assistant i ighwav Err.5ineez` Heritage Cootdinatoi, -' IX. 1. ,lamer Highway .ung neeririg ' ec i,�3,c3 an I 1, Traffic Data j�and Ana'"ysi '. t Wells, -- Assistant Highway Eng neeY il Stanelbe - Assistant Hijhv;ay Engineer n 0 .�..,w 'SAFETY ELEMENT; , l l a AdTf bRI li Government Cade Section 65302.1 requires a s'efety'elem" t alb city end col plans, as foT���wsr ��. � �1 sof �' \ c safety 1 en�n t for tie r'' d,` ii o p n oi' the eiamm,1n�y from b' and . geol oc i c hazards i ncl udi ng features -1 r� cus'sary for ;u�;h ' Irl fnection asl ev.,acuatlon routes, peak iogd�'Water�,,supply r uirermenis minimum road widths,' clearances 4)Aout ih, ., rub, tires 4Ad eolu �c" hazard' mapping in areas of, known geoloy, `� h z`ard. g"c�� �-T{E` sAPFTTHE sCDPE�N�' � (j p The ob3ect�ive of this element is to ihtroduce s.afeti� consideration's'in the' lahhiiig process in order to, reduce= loss' of life, n,]uMasi da►Hage to ". re er , , property ty� arid; economic,;and social' dislrycatioiz 'rRs04�ng 'from fire and dangerous geologic o6curonces. ct 4-�'� ") ' Aetc - - , - � General of p y statement that., � r i r') Reco�gnize''s safety hazards r(2) Iden'; •Fi.es ,goals for 'reduci n (3)Specifies the leve,) of acceptable, risk �' (4) SPedfies objet_tives 'to be, atta. hed, in reducing .safety hazards { as related to existing and new structurQs. g' �� z1 Sets pri ori t7'es for the abatement. of sa-fety hazards,,, reco nl zl ri th�i+variable frequency and occurrence of hazardous events, By.)A map showing the locatioh and extent of knowh geologic hazards: Standards a�N kd general triter; -Id -for lad use an�.,di citt ulation 1 relatiri� pre vention and control If "Geologic hazards` �t �v n may y 0�= Cohside� tato r. ,Y r g. qn to tdie cr trie .r�rcvrntion a'siiot;ts '6 "land �deve�i<op�ni:h��t, such as 1)1r�nri,i g fo'r "defetis�tib�lF ♦ ,1.l�� �1 i) j Pay yyp,�t �;� fL'uxl�l��.�fr�OLOG,l+ 1 4 i� , A6 Iden to fii ca i ori;, rhapping andeval uatinh of exi s,ti hg apedotentia� hazarris land ,us,i? relatiahs oth�.'as to severe t and frequency of aCcu'rrenCe' ��talysis of ha,tardous 1 h��' Sy t G B f ^With maximum citjzen input accePtabl � .risk shoulw� .be dote mined: +) In making this determination, it sho'uTd�,be kept ink i°nd th�� any tte t to level>op thea ro;ariato p1;�nr��Yng respon ,.to potential a n p pp hazard,A nvol ves a j udgemerl'�t,, epi ther eXp l i ei t' or i mpl n �• t of r;"�atd �r much risk 1's �►.cczptab.le: There is no such ;thi,nq as c �'f6ctly� fia and -free environment. NA ural and man.-�iad� hazards -'of some �r�ind a , and degree are always preseht, However, efforts can be pt,oducti vely uridortzkbn, to try to mi ti g�,i;e the rnnsequertcet',i,a,f kn&n ha`�arrd5:t t the, safety E1�_tmen,the problem of -r1 sk i s one Tn the. context o r public policy- and t ie appropriate alyl;oca.tiorisj �I,of."public resources_ to Mittgate er+ot z"�rdse5 �h e' 17+r4t�sq, esotrovide a ea in wh16w, safe is ich au . p y , g Thep nn `- t a used tc an. in, v� jdual •y response to .Lleques ci�in communi tyw : e, as ., _pp can be meai�i ngful � The first of several, essenti'a1,,; ,eps is'the rec- agnition of the Kresence O;f a hazard' Much ofl,.the- r>lalining Of the past °has` proceeded w7 gout enough !� yowl edge of tills naura7orGes at play in.:a given area., f ,Or�ce a probler�i has been recogni ed, considerable effbrt is��rkygu red, t evaluate' its likely severity, -f.requency`, and the character 4 "i the,are 7nvo;lved, :This step should take into account'the bene fi L' dost r�ati o�' of re%jd6 Ftg,,h,zard , .acknowl edi ng the intangibles i n vol ved,.,~ and compare ng i t wi�:�r�, that oi�othi ' p,rojegt's `^` The fact�or�, of, vol untai— � and involuntary 6pbsur oto risk must b� cons, dared i. A reaching a decision. a _ ,. % C, 'nature and magnitude bf e�for�. hazards-,,rpqured to �1.orrect or mitigafire g� fs 'er{al �na urs; of rr±riul��fi«�rfn:�. and proora���l, riitrrlrrl i.0 pr��vonC" or Ami to ga to tha effects` t I zar'ti " i t dovr l opod <.onTl n►"1 f.uro l l,(envi ronmentq, E. Xchange informat� an and a'vt ce with f re, ,o I i,ce ap. Iaub'11 c wgojks , • i t, (J departments; other agenc7 es ; and`,, speci a 1 ty �I)crs:onne t in the for►iiuW 1 ati on of the element. 'YIN1'7,roN Q/11 'L;1I1,'� �+ 1 r, Acc table .Ri k. The- level, pf risk below Otic: ro speci fl c ' �' acts on 'by local e�overnMent is, deemed to be nE.r6ssar „ Unaece table Risk Level 'Of risk above''which specific action by (government is deemed ,to be :necessary to protect , I i fe and property.`' Avo'adabl.a kisk. Risk :n o t ",,h e ces t a t4y to take because irrdIvIdu + X I 4: ' 1 or pubI c goals can be achieved a the same o`r less` totao °cost" by other means wi�th'out taking the H sk. Defensible Space. G°o rcEYPt"of urban space designed to inhibit crime by utilizing the°proprie&tary concerns' of" residents. Key ingredients lrr designing 110defensibly space include improving. the natural ca�ab;i1 ty a�` re .i dents p vi seal ly , x � �=,isu�rvey �the�,.ub1f�,,areas- of tbeif-�,r"esidential r, environi1eht,"enh'anc7ng spheres of terri,torial , influence wih7nr vr)i7ch `residents can eas7TY adopt propriPta;^y 'attit�de; and enhahci rig safety through the str�;tegic goographic Ioca -` community.. ti onf' intensively ni•erisi 4 very use' fac71 i t�,�s:'�` SOF THE SAF'ET. ELL NNII`. E�A�'.�'G'NSH.iFS A. To ,Other Fi emof� is The,Safe}t �>;1ement contributes tb de+f"?1op,ipq land us,e standards and policies.., h se,. i 11 rel ate type ,and intensity ofuse to the 16901 p 1�c�e.4 l 9 9 o e .,W y'� of risk f' and to the ava�E�azard' to' the :eff�.ct of deYelopment ire and ' eol a i c v upon that risk lability of services and faciiitiesv, , toYcnmbat them, The S'a;ety, Clement also contributes basic standards: and requik?ments #h ri to ' `! circulation and optional public Uti l i tics t�lom� n s, and will ; r ,►�.uve mp aftan�t - mp1_a ca Li ons Fol, the 0[)Ori �(idGt� and ' con ,ervo l l orr o l`r1nr,1Fr L ,5 (2 Ci cause o �' he strong relationship with the Seismic"Sa'fet.Y Element the local' )la- n bed may wish to pre are dha5si 1 edocumentsitnul� i#, g y p ta�n�eou.�ly o, to combine the two elements Int, n B io 'lk Other Factors; l) Socia!'., The e1emeri°t is directed at roducing social costs due ro injury, hiss oF or prilvate dislocations increasing the sense of communi ty securi ty and we! T -bei ng. 2 j Fconomi c,: The e1 omen t should d be directed rec tete a k, reducing costs of di t�ect property 'lois and conomicrdislocat on. (S) Covirorimenl;al ,..Cmpagt. 1'hp Safety Element provides the policy directives for reducing kdc.curse impacts on both the built and natural environments of major safo{ty.haards.>:.i� (e„ 0 To O cher.,rleticl es,. 'The preparation ar' �tlid Safety 'Element'► ouid sa be favi litatnd y idehtI'I`y hg; and securing the cooporation of major Federal, state rpglooal an"a prIVate: awtlers,bf, land, in largely naturaltt4t6','`'wli'icti �t .., y::.•. .. -3'.. _�..u. 7n:li. �P rer •`- f affects tk,�j)btenti al. fi re hazard. Such agencies Would,, i nicl uvde, " for eXampl oy the. national end s tate, park s'er'vi ces . (2) Local ,nlanning bodies are,,encoutaged � o enter into 7r� nt,p'lanniha and the execution of mutual assistance pacts related to safety 'hazards i;±aterially affect''ng more one° Tannin ° it planning Jurisdiction. 6'. 111PZE1ENTATION Concurrent or subsequent revision `bfothergeneral plan e�leni' to 4� i nc6rpor`ate safety policies and Ori tori a,. L Ci Addition of capital i 6 V ` improvements,as may be necessar for thy. mi ti gat and ,control of safety hazards to the capital" ��1�pr Ment program. :. I� - Md r,, '. i, i 1 71 ., u p�+/i Y Rev74w and ossble amendment of zoriin subtiivjs�ci and, s�`t i p „ g edea lopt_ta,t to ��egulat�on to incorporate safety provts7ons. ,rr' D.� rormulato building and f ilre safAy inspect7on "programs of b� ildi-n, ao�i ,i ' " premises to identify f7 r" and other safety, ,hazards. r E Provide--A,,tut, to contingency la for ma m—�d sast4 1 ry r g y p rl J e"r or mergepcies. + Provide rngaing Meview of major public and private de'iC Taht proposals by 17 re'' and police dopartmencs to i ns urej cbmpati bi l i ty with safety ofx e's.ti ves 4 G ,,,. 0 ° APPENDIX, I -A 'y u J � SEISMIC SAFE1� ELEMENT ,. 1 �. AUT11O i' ,I' A: Authority.> 0overnment� 'Code ;Sactic n 6S302(f')",requires a se):snq, safety elei ent o,f al'1 city-ar"cntinty general plans, as follows:„ d fl �� A' s�!ismic safety erement consisting of an i;deritificat,ion aid lappi�aisa] of seismic hazards sunh as susceptibility to 5ul^facer ruptures nfram fJIulelng�, to ground shakigi ,,,A& o. grotind failr�l^ or, to, the effects of seismic ,: ly %,duced,,waves, "such as tsti '( its and seri cher J the se" soic safety element shill' als" lnrlude in appraisal of t" mudslides, 'lands'Iides, and s]ope. stability -as:. t�ncessary geblog II hazards that roust be considered ;simultaneously with ot�'rei� hazards such as possible surface;, ruptures from fa41 ting, grol4M 7 „ shaki rig, ground -=faf l ure and seg siiti cal 1y i niiuced waves, ' The effect of this section is -to requires c;�ti(, .and counties to"take seismic Hazards rtieed,to'seismic hazards' into �benconsit in their ` larir i � r ' p g programs. �Al i derec� even` th'�ugh ,only ground ;- and .water'' ops or=l rg��f nju�a'MpIds,.. The''basic ffects are gi,vein as s objective Js to red xci � �1's , ' es clamare,. toproperty and ec, ' gnomic and social dislocatic,,ns resulting from future earthquakes, , B, Background Earthquake losses ;in Californirema'inider of this century; assuming that�Jadditional significant ct)uV/x.er-ureysures 6"e not taken, r have recentll, been estimated a���approxin;dtc�,y 20 billion Urban Geology _ Baster plan;,' Ca17ft�rnia Uivis, I of Ni!ines a� ; ' �? d Ged'l )gy) , Estimates of potent a —toss of life for this ierio ,rang! well up into the thousands 7 ,and ml`s';t of this loss is preventable, { ;1 ih.e.most widespread effect of an earthquak;6 i� c_round halon . This is ��so usually (but not always) the greate t' cause of darnage� Structures , dl, � o�f all types, .including engineered structures and publ4li. titi l i ty' facilities, if inadequately constractede.lor designed to withstand nth"e shaking forte; r, may suffer severe damage or collapso,` The east majority of deaths during, earthquakes are the result of structural Tai i .ire due to ground shaking: ost such deaths are proven't�ablet even with pre'scn:� knowledge, New �` > construe ,ion tan -and, should be designed and huilt to withstand p:roba'ble shaking Without collapse, Tile greatest eoistino hazardira the, state is thrr col tinned lyse of tens of thousands of older structures incapable of W thstand'i�tg earthquake: forces, Koowledge ?f narthquake-ro�sistant design aprd construction has increased gri�atly in r`cOlt years though much Nmaips to be lea,rnlpd Vv 5 A second effect of earthquakes is rouhd ran 1 ore in the fbrr�;,,u� land- - -> G a slides, rack falls, subsidence and other surface' and nearurfaLe a � ground movements. This is; often `the t^esult of complete 1C' of strength of water -saturated scab= Ilj ' r y � c, L f t, p. Evaluation o.f disaster planning provN_Ii�' � For near•,term eariirlquakes, the most 7nj1`tpOiitely u�sefuh thing, that a community can � do is 4d -plan and_'psf,�aa �orespond to and reaoyer from .an eafti)quake as qu'►ckly and'. efire4' )',al � as Gussible, given the existing condition of the, area ThP ,emiic Safety element pan provide'guidanqe_.-iii�disaster,planl) itlq. {� E. Qetermfnaf b n of s PC--" fi c uii.d use 5Lal � n�ds re'1°aired u P �► l (o l eVel of hazard arij r'i:;sk, JJ }, A +, a °. o� 4 _. �� As an initial step,. i t may be helpful ,tg detormi rte i�`hat aspects of the of emeot f{ hued ,greater emnhasis,� Tf; awiiiimunity r ,Targeiy cicti���lopodr, etnPhas,;s' bit struc- i ural,., ha zards',aii� aisa)5ter` planning wou'I d �b Iivit apprnprli;ate:' Thi.s,,Would af�so `fie the�� case far �r6mmunitl`es vihos gr�eates'i hazal d wl1' be from groin ! wh�akirigx On the other hand; cpmmuhitles v)ith etfi�n�`i�e,ope+n areas and teas sirbjQ�f to .urbanizat an may wi'sn to fcicur on na+,i►r�ai, fie 1 m, "` hazards an the formulation of ' f'and use pol v ci es .ae.d dev,e ' )Ivlentl ro�}u l �tigtts to ,i'nsul a .that hew development isn,ot ,hazav-d4s,,,. fp > ' • ^g g ', 'r }�v�1 h tG �.oli de the Oddi ti onaf fy l oca'I ,� l annjn a enci e'fi tea s � r h preparation of the element or portions of the elome.n.' in jointl ac,. on°t. !'his vfoy�d be Particularly ;nr'actical for the study of natttrAl "sai ,mic hazards, ` A:. Ini'tial 4;'Panizat.i6k 1) Focus on formula ing and adopting S'1i1,i3O 1m policy based on ;very general e_►aluation orf earth science. informa4ion reat�i ty avaWlable ' (2) Evaluate adequacy of existing infortri; tic,n in relation to the id'enti- fed°'rat'tge and .severity, of problems. (3) pef�ne s eriftc nature and p : ' magnitude of work program needed, to complete ti . the element. in a second stage; fl i3, Icl'dntification of natural seismic hazard's i 1 2 Location of all active or ' ottrrt'al ly actAve e fau _ (1 General` str}ueturat geology and geo1oji►, r�r ory.� 1� �' p y ac. v 1 t ' �!i th evaluation regarding past displacement„ rand 'Probability of fut0ee� movement, �3)Evalu&tion of slope stability, sous sub est to liquefaction and differential' subsidence= ` (4) ASsessmeni. of poo eni,; 7l for the orcurrt icr. and severity of damaging, tihround shaking and aittpl`tfying effects Of tiotonsolidatod materials. (5) 1'dentification of areas subject to seichrs and tsunamis (6,, Maps identifyinct location of the <abovo c:h�ractptistics, C. Ideotif r.,at.ion and evaluation of present lune tine and cirtv)lation patterns C� 'ishoul d be rtiecogni zod in the for►ltul ati oh of sc i sirti c Safety-( and 'use policies, 01 Ndentification and ovaluattion of struc'tur%tl hritvds relati g structural ch rlaateris'tics, type sof occupancy and ge:�log1(. t�eh4racteri ics n ol^d.er to formulate policies and 'roframs to reduce structuralY,ha ��ds 7: Al c, „ t: „ s f f.2 A AP`NDXX 11 n fokulation of seismic safety policies..and `'recomm {ndat ans. a F. Fotinulation of an implementation program. s A. Acceptable risk: „The 1eV�el �of rink below which no spec�`f1��,?c;tion by local goverrlrent is deemed necessary, pt"MO.,�- than�` aking the risk,,,known . Unacce table risk; Levl of risk ab K' r n p _ j above' whtcl'pecz.f�c a,ion by govcCrnment is deemed neces Silly toa rotecir and�pro`perty. y/ t Rvoidable :rig;k: Risk of necessaryto e' ` „ a „tak �b„c4use he i0divldUt a � � 'OPI, 136110 gba l s can be r -h eydd : at the' same *`f'f l ess F+ ,total"ca'\ by A h e �-r�s .4 k,­ ^r ' i.� _ rl ° - a �E'"'�. C =✓r) ?R'h'..� lw,.w„.y^'�'.;,,,•.;,,r i.'i-t:' •c..w r.l,.,h rr} �'.� @ ,.f� ,. ity f, _�B Teehni cal Teroli nolbqy- 'fstana;nissL „ Eafthq u a ker induced ocean wartet> cOmMoMy referred to' as�tidal Wave's, V, (Z Sei rhesa'rthquake� nducei waves i r1 1 akes or ponds .:,LO Se7smic: ,Portaining to or caused b al r h Y y � { Soil Liquefaction i. Change of water saturated cohesion,!ess soil to liquid, usually from intense ground shaking,, soil loses all stt ength,. t,, f,orCeomesplfrom deformation kof the earth scrst.movementmaJbe�ra�idresulting T- earth O^ s low ( tectoni c °ie'00 „ Fault' A plane o • surface in earth materials along which failure has ` occurred and materials on, Opposite s,ides have moved relative to Oh- k anothei'� in respon50 to the._,accumu ati,on of stressin the rotkS;. Active Fault. A fa h� ' fault that has slaved i n re�err,t geologic t���me „and which ely to, r. is 1 i!; y near future, (For P;eologicmpurPosesr, there are lno�precise limits to reC;:eMV of movement or p��rohahle future movement Fitt define an "active fain t'! . De N ni ti nns for plann7l-Og purposes extend on the order{ of 10x000 years or more ?v back and 100 gears oe more �forr•Jard. The exact time limits, for Planning purposos -are usually defined in relation to con�,tcrnplaEcd u4,es andstructures. Inactive Faul t,t A fault which shows no evi donC"e 'of movement i n recent geologic time and' 'no evidenc6 ofootentiat Mbvement a y in ,, i►� the,relai.tivel aar future= � \` -4 9� APPENIAX 11-d , 0 „ i2 Cl Seismic Hazards: Hazards related to seismic or earthquake?ctivtji` Ground Failures:Include i-audslide, landslide,, lique�act;iOn subs7dertr : Su"rface 'ruptures from u3ting:, 'Breaks i.n t ie geound. surface re5u1., ng U D • - ) I / J f] from�faul tmovement._ Jr?E l ,,rr MNrrp�tt119 ,. �, o 'A To Other ElMents ,. o h FI The se's,mi c safety e] euient contri'btltes i nfortna ti on, oh the compar1ti ve safety of us .ng � 1 ands for various' purposes, _ pe5" 'of `structurs ,and t ` oocupanc.i es . I l p`F'ovides(j'rimary, policy 1 nuts to the' l and &, housing; .open space, c } igfiort and Safety;r�ie�t�ent�.,, ry . ', � , ll '� ) N d C . t" „ y +%.c 'Ye•h� r d6 "'fiL' +.""3ti� .v. , ..r ..frt.,,•+ '1! r .r• . i' . -r.r t i'v' L4 ,, }Y Y 1?.w. - * 1 .ter.. 'k. �e'v u� ,the cl i so r ' c ont �1 w�lth- the safe cy eTemcnt the l oca1 o -a ri vCtit ,,(u w s 'i'r5. ,z ,) yLtP`w. yr- � ;, p'l anning agenc,' they Gr3rsh tri !prepare these two ,el:crients .s iftl taneous l or combine the tWo elements,`"_ y ,required content �ri4d poezc�a 6 "i'.,o combihed4 the J. t >� into a sing le document' �� clearly, sof each elymenx s}could h -,� �aenttfiabie. rhe local t��':�sd7c Ion ma ��ish to �nclude�theI seismic,: safety element -as a par4 of an enviri7nirc;�tal :.resources Ma agemeftt elemerit ERMI as discussed previously. „ 1 To Environmentl Factors:'' P (1) ,Physical; Ceologi o hazards can be a pv1me �tjetermi naht ° of l and .,use ,. papabi l ity`� Social: May provide basis of social> disruptions,4'. U evaluating costs of including the possible loss of l fe due to earthquake And..JF'1'°' L dents fi es tp an$ of mitigating social aipact. l.�' " c Economi C:r Cost and benefits 'of us i'hg ot-pot using various area's `,` related to potenti damage or 6.4,8t of overcoming hazartd. l� '�(4) E rohmental Im act ge ort; f?rova; es has�5 �or eval'uating er�vi;^on �%cr�t'l impact 0, � prdposed, projects in "< ' ; el,ati on to slope stability, possible r_sil uct;ure �"ailiure� .etc. � Y to Other Agei cies t� , 7ha�Statr: Geoliogi.st is, g6lred by Chaptrar8tiori 2 of the public, r kdsourCps Codi: t,o°delineate by becember 81 1973, special studio's zones encohtp4saing certain areas of earthquake llavwd urs maps and to submit Och 16p, to offerted citiegs counties; andtilra'te agericios for review lid �'Onlmeht5 1BY Debember 31, 1573, the`O Vision of Mines and Geology W71I,have tip"de'liheited the spedal studies zones encampastinn all potentially and t � 0 APP13NDIX 11--e 4 'a, ✓ a - 'll '. 61 , f recently active braces of the San Andreas,, Calaveras, Hayward, and San. ) Jtci,nto faults_.///The special stu8ies zones, wi11 be 01-ihi a'tod on U. S. GeologiCal �I"urvey quadrangle sheets,: The yuadrangie listed in Appendix F will be inc luded in the ,initiM distributibr,Which w' 1 'begih -ori or:� bout 4, October 1,; 1973, and be `completed ,by�';December, 31`, 19 3. Jn addition,to the faults named above, all 'active or potentially ac i ve,, faults Within, vi thq n . �., Ibe quadranolet ,-Iisted wil-�1 be..zo,ned, Tice 'zones ar ordinarily about' �one quarter mile ij ,:width, Q ,, tr The eta ie,'P�i ni nq-arid Geo1 o.gY Board ` r' i s reaurrt� by Chbpit�` 1,'11-A of 'the Puhl ic-Rest�V.rces Code to d,6V6lop I ci'l ides p'ji: 973, cls"rrcerhing-�rea1 estate de�f''ri'= "�Y ;TSF=°� ��-- C�, Wi i nl he $*L-C1 a, stuff i es zone's : �! '•�a �i � ���" a � � � 0. ti rU �, fl i-''f* M` ,f a.. �Ci'.;�� t..� 1 L� 1✓r s w c V `l1 •r-qrM^ � a 1'yi v'�, +.�✓ 'r..�! "'r„� � _ w .� „ ,y�`� 7Ve s` #eclfii, I a' oe a ht revision of :tither -gengr .r '. * . r . = q al . `pl an elements to 9 p a� -�� nit on t� 5e SMtc fety pola,c�es -and cNiteri-a. 7 Inclus7on of dpprop'riate requirements and)procedures,in zoning Uyi tub= u ti" rl rIA divlsi n and site developq.wnt regulations and building codes.��. Design�tio�i of spe�ial zones With '�speriial land development, regulations :such `as �t �, Weis i c hazards -mahagemert zones ", „ "IG. p,re,parAt1on;,o / renewal places Ifo •�,�arPas Where a c 'an e�'itt g use and deVel apmeht -patte t is necessary because Of, hldior seismic damage or extreme, hazardY�.v.� p4 Auil di by ins eoti on =prr?grar,;l; to idehti fy unsafe structures and,,i ns ti qAe hetessaryG rrectiye measures,., 1 5 „ �,. Inclusion of potential,, earthq►rakke� destruction gii)i contingency plans for` major disastdrs and emergeh0'ess Review and 1�ai.son With �rwergehcy Preparedness' Orgahizat7ohs and Police Departments of oVeral!7'clans'and major public faci l i ti er proposals as to their adequacy in e' ! rgehcy situations, „ „ F, tducat ohal programs to devol op tommun ty aWta , ss ofG\ sei smi c li tzap�ds,� G. Updating the building,.r odo to reflect chr k) , P angel yin techhdlo9y �> NOTE;; Thesegi'ude'lines drew extensively froril; ` ll S"ansstpdep r ri J'Gt�ee ovet' fo sthe Seis, y_ �l,etnent in General mrc Safet kart g{a�.e trurr`"ctTy` a ys 7 s, l braft Guidelines for thlb Seismic Safety Element, pr�epa'red' by AdvAte," IJ Croup on, Land is ✓�1ahnin for 1oi,rt �,0110zt .c on Sers�ie Safety,'' , California State Le�ga at€ ee, '�e�1;�e��ber, Seismic Sa 'etY' CgncOPns In CIPf_O IM Progr ldm proaarod_.,for OR by Wi l l ianr: Spangle ;associates; tlarch 1972,,, tlripubl ished 4 y . Chi Jyy'i l � f YF