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HomeMy WebLinkAbout028-400-003IIIIIIIIfC IIIIIit4' C,6 II4 e)A, IV I6-- III............ IIIools ;7 I*j0A IIfittI7 let 7 io IIIItIIf 10- Ikf'. iti" IIto 7 ILlo� //v IIIlIIIIIit IIIII IIIIItIIIIIIIL II4jF7 IIIIIIII I III0C kq IIIIIItIIIJ IIIql\ IIIIItv IIIIIIIIIIIIIII!Iye IIIj �&Wf. IZ IIIII01 IIIIIIV IIIIIIIIIIIIIIIIIIIIIIIrn IIIIIIIIIIIIIIIIIIIIIIiIIIIIII01 Ily II77 IIIIIIII5 iIIIIif0 lei GEOLOGY AND soiLs mA' p +j IIIIIIIIIIII93. P. A. Lydon IC a * Reg EXPI44 Geol6'1st 144 4; eo IIIDec. 1984 IIIIf0lia 6 ti IIIIver- k, Ithy IIII e from n ;ng IIIhdk,, k shown Iall ItIIid 7 ll�f IIIIIIII//VO IIZ� 7 IIIfrom II 6rUbUt.41' shown L e0o`)6 50/1 !4*v IIIIIINOT9S IIt�k 1. ti A L ifIIPropeir r Isilt' loa, clay loam of coftib Ined IAuburn-A vy, f'e. t!5 e .,rqdnaut series, IB soil IIent� Metavolc`a' n rock. f 0 IIItItIIIfIIIif, IC Chloritc metavoicaic'rockq with :", Iwk, IIIe pa IIit; -8 ced Joints dipping steepl W;�e "'r I I I'l rfi I' I = y I& Wo IIIIIIa Ifoli tion band 'in &?We Co. plan"109 se id Ilightly-schisto' JAN lop III.me 4 hild rocks East to edge of IIIvvea k inting foliation, Jo IIstrong Jointi IIitIIIIIIIIIItation IIIIIitIII7 IIIIIIlIIIIIICj I -Ir he s C P R K L 'A RVO D C MR y . _. .., i e� ., �Ci :� ..m h ! � � I � .. � � , � � r-- .� � � r .. � � s �,ly `� 4 c • I � • ' '+ 1 � �s✓ - t L r < ,� 1 .. o ! �� l ' � �. t, � �, �,• � - ;, . �.. �, �� � .. ,�.� . . ,� .�. �, '.. ;. ,� . _. .., ., �Ci :� ..m h ! � I ���� .. � � � � .� � � .. � � s �,ly `� 4 • I � ' 1 � �s✓ - � L r < ,� PUANNING COMMISSION S0t0lARY SKEET FOR LAND DIVISIONS -2G-03 APPLICANT 600tge iteddin 1 ADDRE,88 1685 _ltichardsoh -Ct. Concord CA _ 94SID � bWNER d�111e � PROJECT DESCRIPTION TentatiVo- parcel rto diVidiri3 18� scrl�5 to create 3_par�els,. l �outht,e5t of the . intersect oit of Ban' Q LOCATION%jjr65cimat01V Y, 3 milesPar, • .kd,, &. Oho Rancor bh the nor th.__sidc .oE Rangor _'Pat,k Rd.ja+Oroyille area: 98E886918 PAPOEL V01413DR(S) 28- 40-'0 3 _. s OMVING A-5 w GEN. PLAN .A" .Itssi. PROJECm CONSISTENT? _,,, DATE APPLICATION PX-ttiVEb June 16, 1984 , Barnhart-Drown Assb. _P.O. Box_,1576 Ornw�lle, , DATE PUBLICATION NOTICE WPITTEN PU&LiS13E'D� PLACID NEVSPAM NOT!Ws) 'PUBL189VT) - 0, C P. (J E DATE MAitINd I'4Ik PREPARED, DATE MA CL..otlT'Noi�dWRiTT>JN _ MAIM DA'T'E PLANNINQ DipEeTORp,S JitPo1 T PREPAVt1) ENVIRONMENTA , CATWORICAL EXEMPTION DAT8 Ftttb, D�TERMINATI6N AND 'DATE NEGATIVE DECY.At RATION DATE ADOP' b MITTGATEb NEGATIVE DDCLAPATION - DATE ADOPT1rD ENVs IMPACT RtPOPT DATE CBRTIVIED� S1J)3. CbMMZTTDB M>;ETxNG DATA _ _, _... _ __ A'DVISOR)t AGENCY iMAPING DATE_ ADVISORY AdtNCY ACTION BOARD 'AC1'TTON _ COMMENTB-C" , 1 ��i •i+ r +i'+ #S - �/ fk u?* --a S i a 1 f APPAPPENDIXH � ,. NOTTCB OT'_ DETEMINAT inNr,� x To'. Secretary for Resources r 1416 Ninth Street, Room 1311 OCT:2'61 1984 Sacramento, CA 95814 , �} County Clerk, County of Butte ELEANOR M. BECK 25 County Center Drive A. JACINTH Oroville, CA 95965 PROMI, Planning Department 7 County Center Drive (Filed) Oroville, CA 95565 SUBJECT: Filing of Notice of Determination in Compl,ilance with Section 21X08 or 21152 of the Pdblic e u e Corte Project Title 'Tentative parce`1. Map AP 28 40-055 George Redoing State Clearinghouse Number (If 'submitted' to State Clearinghouse), Contact Person Tele phi' Number John Atom onsa Public Worits 916 534-4.266 , Project Location Approx. 1.3 males sw xntersectioi;of dTangor`T' Rd and Oro i3anor HwV. on, n side of Bangor Park Rd,, Oroville , - - — Project Doscript: oni ._�,. Divining 18 ± Acres to create 'three parcels, two at 5 acres And one at 8 aures. This is to advise that the. Butte Count AavisoTy A entY Lea AgenCyj hasInad'e then tol].oivi.ng determinations regoriling the above-describ:'d• • project: I Tlie pi`oject n will have a signi ant effect on the ,e:i Vii3Onmcnt, Yi Zvi 1. l not; 01 2. An tnviromfiontal TmpdCt Report was prepared for this projbCt pursuant oto the provisions ofG8QA, and was certified its required b S ' q y ectio; 1508, S(g), 14 :CalifiAtla Administrative dodo, A Negative Det Xa ra tion :vas prepared ;for this pr j cct ptitsuattt to the provisions od' UQA- A copy of the Negativo, Dorw'i,ar' n tion May be examined at -the Planning, Dopar tine nt, 7 County Center Druce, Orovillo, CA 959;65, isexon. of ;C:xcml)kion was filed Indicating this project ,. A Notictat '1+rolfl onvrohrlaTlL:1'ellirrtvt Astattinent or con;,weratiun 0 Was; W A 8 not; adopted foo this project 5. Mi. t i bation meU$IA Cs 'Idoptr.,d by the Lobel Ag eticy to reduce: the impacts of the a1v :avert p to j ec t r'ci t Seo tttaclimant / 83 A. KIr:chcr CyytalaCt°� 1,1h8 _,�t/)I}rrr ter0 f �Il,aiitiii 1a t.tk l i IA4www f a,rk �,." `mss.-•"�' "�`,.��� ,_� ,�""" LA*ND OF NAT'QRA1 W+ I'A"LTH rAtD 'B U TY y Ok'ARTMENT OF PUBLIC WORKS ButtoC6.elsnnin9Cot m' WIL1 EAM (t3iEl) GNspp, f Etectar I tG 1, 1 �� 1jftUNTY CENTETRalAR1VnEet• (9O20Vlll5. CALIFORNIA 95965 eP bjS34-4G81 Oroville, Calitomie October 12, 1989 �P+. George Redding RE,: AP 28-40-03 1685 Richardson Court Tentative Parcel Map } Concord, CA 94515 Dear Mr. Redding: At the regular meeting of the Butte County Advisory Agency held ' October 8, 1984, the Agency adopted the mitigated negative declaration regarding environ-inertal review and approved the Tentative Parcel Map for AP 28--40-03 subject to the conditions as :listed on the attached sheet. If no=rppeals are timely filed-�withih ten (10) days of the date of the A60i. r, ry Agency's approval---wi.th the 'Clerk of the Board of supery tr:erro this action Will be final. When the conditions of approval are .comp],,ied With, it will be in order for you to file your "final. m, --p" with the i3utte County Department of Public Works for recordation aiF:hin twenty-four (24`) months of the date of approval 'hy the Adv',I,soryAgency. If you should have any questions tegatdi.nq this matter, 11ease contact this Office. t7eey truly yours, wi].li am: Cho -ft Dited°tor of Publ:{c works OA1 Jt hn htt~nCIonsa Assistant Director JMd's Attachment ccC;,.-`X'l hniOg tnvit0hm(3n 4 Re"vicii Environmental Health Departintnn " BaenhartJilrown and Associates i �G George 2edding, tentative parcel. map; for 3 parcels approx. 1..3 miles southwest of the intersection ofBangor Park Rd. and Oro Bangor ilwy., on the i north side of Bangor Park Rd. Orov lle area: AP 28-4o-03 Engineer: Barnhart/Brown and Associates � d i Public. IvMrks condi-tion:3 e Provide two-way traversable access M -8-=_j to each parcel from a.county'ma;tnta ned road or state highway. 2. Access to be re�c rued in deeds as per county ordinance. 3. Show 50 ft, building setback line measured from centorine of access easement. p t�. 1E. Provide road maintenance agreement. 5,. Deed to the County of Butte 30 fta, right-of-way from the, centerline Of Bangor Park Road. ' cline of Bangor Park Road. 6. indicate ;a 50 ft. building setback from the c�.nte 7. show all easements of record on the final map. 8. provide street name bigns per requa.rement: Of the Dept. of Public l Woks Prior to recordation .of the final. map:. z Provide cul.-de-�stad at the ehij of the street: 10. obi,ain.encroachment permit and construct standard road approach pr�5viding adequate sa.ght c13.ata,aco at, the i to erscc'tiou of access rood mild Bangdt Park Roam' Pay tany dclintluont 'taken current tines ad rcglaircd, Hea1.i1x: Dept. et�ncli.tion;3s J Provide an avda for WaIl.s and 100 s't. l.eaehefield, free setback around t1�;iasc etrca ori Pa:Me:t .: . Provide a lqq it. leachiield free soti:baclt around 'existing wel.l,s diener within the palloperty Or Wi:t�3n 100 Pt, of t,ho property botindarieN on parcel. 1, 11.x, ak ow a '30 ft, l.eachfield setback prom the rlrainr,%c wmy on parcels l k1d:r a 00 ft. lc�athrield sotbaok from the Pored on parccl l., 16. Show they ugdblo tiro ACre Wewage ditypoactl area proven to mt:et the rezluirctriants of theuubli'vinIon Ordirwnt.e cn pareelA1, 2 a4d 3, Vy. ptrive that- the requ! rL'd qm tti iml Of dofne3tic Vutcr arse available ;to parcels 1.0 P u1O '7 P, 3 TO; But County Advisory Ai ' I Y'"y I f=�tGM%' P1ah,in Director SURJECT Report on Tentative Parcel Map o+ George Redding s an AP ,28-40-03 DATE. September 26, 1084 �i This is a proposal to divide t8 acres to create three prcels, two at 5 '! acres and one At 8 acres. The present: 7:oning is A-5 (Agricultural, 5 � acne parcels). The Land Use Plan Map of the Butte County General Plan designates this area as Agricultural -Residential. There are no specific, or community plans far IGhe 'area. :. The proposal does not conflict with County zoning nor any adopted or pr6posed element of the Butte County General Flan nor any County; specific or community plans P i. Recommend approval with the following mitigation measures: , i.. Perform an archaeological survey prior to recordation of the final map and incorporate any recom,nendations into the project. t, Per -form a geological survey pr -,1b.- to recordation the final is pof map and incorporate any rec lmmi�';datibn--.- into the r, le i. 1 cc-. George Redding Barnhart, Brown and Assoc 0 w �I t Bunte Co. Planing CWft oC r V984 Omville, "ifMk , - September 28, 1984 Barnhart -Brown & Associates - P.0. Box 1576 OrovillO,► CA 95965 Dear Mr. Evans, At your request on August 17► 1984 'i conducted an archaeological survey of approximately 19 acres of land owned by George Redding,. APN 28-40-03. The property is located approximately one mile to the west of Bangor, adjacent to the north side of Bangor Parlr. Road in Butte County. The property covers a, portion of 'the SEJ of Section 29► T18N► R5E► Bangor Quadrangle► 7.50 series and the proposed project is to divide the property' into three parous „!Prior to conducting a field survey I consulted the archaeological site record files maintained at California State University-, �! Chico to determine if any previously recorded cultural resources were located within the project area. These records indicated that no previou's'ly recorded cultural resources had been located within, or adjaoent to, the project area: The property has a gentle north to south slope covered by an open oak -grassland vegetation. One house is currently located in the south end of the property. A small intermittend drainage h` flowsalong the eastern property boundary that contains two small pondsi created by tvlo small dams. The focus of my survey was a visual inspection of the ground surface for materials or features indicative of early historic or prehistoric activity. The survey was accomplished by my wallting linear transects With a 10 meter interval spac3.ng over the entire property area. No materials of features indicAt ve of prehistoric or early historic activi y were observed during my inspection of the property. it is therefore recommended that archaeological clearance be granted for the proposed Project area "hoer 1 ours, mes P. Manning rcha6b1bgy Consultant I?.�. b�i� �l©fl �Ou►CSA 4°7���9'+��5°7 � CS°7� 6� �•�3��® _ ill ;tis J ! Ir'', V 1 ► j;,"` �—y �i� ' i V ,¢ \\ I, "y'' ._ � I rte.. `�'{ � �. ., `,.•„/"'� r t _-\r- . `CS. Jll 00 i �i,,,,• �� ��, yc.'*-.iii+"w.,� {1,,,;�..,M �t� �'\ • .�Ik y-1 ,� J�• N \ .,.iNZ i cot �. "30" 633 $34 j fCA! A35 - y� 25' rLtlArA k w SCALL 1+24000 a I MILE 6.14 o)', loon � I� *Yw "000 dtl,'� 5000 Gtltlq T4110 TtCT ,-�°�^. I COWOUR 114TEAVAL 20 PW , NA ONAL MWIC" Yi: ICAL OA'tUM Or 192 CAt t q 1 � � �lUkOkAht,l� LtlCA�1�'r Ott SALE by U, S 13MLOGICAL SURVtY. tik:wOO, CULUNAW 80k M, tit3 RWON MOINIA i2ow A mot►t bt$(C' WINO TOPOOkANHh' 1..APS AN1) .SYMJIt)tvi it, iA;AILAM t nN Ri;pu 91' •N 13 .SA(d � 1985 PHILIP A. LYON Consulting Geologist 2948 San Yerbana Way, Chico, California 95925 (916) 343-927 ou"tcb. MUM109 CM^ 1AN 10 IJ03 I December 3�0 198'x, . Oroviib, Oalitorni� , vAWATION OF POTENTIA, StISMIC HAZARD AT THE BEDDING PROPERTY, WEST OF BA1400A CONCLUSIONS' No evidence of active faulting was found on the property, but it is located close to a zone of potential faulting. An inferred fault might pass along the northerly half of the un- named streamcourse on the east side of the property; less- certain evidence suggests that ground breakage could occur in the southeast corner of the property. As a mitgstion of this potential hazard, I recommend that no dwellings be placed ,east of a line50ft west of ;the streamcourse. Because of th liklihood of strong groundshak1hg in a future earthqua:ej an- other mitigation might be to require that mobile hohWS on the property be tied down, braced, or otherwise treated so as to resist lateral forces from an earthquake. INT MUCTiON The Redding property (AP ## 28-40-03) consists of about, A acres located 1.3 to due vest of Bangor, in 8t l/4 Sec. 29, TigN, R5Ei it ;is bordered on the south by Bangor Park Road. A prellmnary assessment of the tentative parcel 'ma P by staff of the County :"fanning Departmant led to the conclusion that potentia]. `' ,,ismsr_ hazard exists ��-dz use of the property' 6 proximity to a i"ult of the Foothills Sheat Zone. They re- quested 'a geological report to showi the location of any fault Visible on the site and to describe 06sible mitigations to seismic hazard. Barnhart=Brown & Associ,,ates of oroviile retained 'me to t Lydon page two December 31, 1984 prepare the requiredgeological report. 1 examined the site on December 24, 1964. TOPOGRAPHYo SOILS, AND GEOLOGY 'Thc property includes part of a lots, southwest -trending ridge and a south=trending spur from it. Slopes are gentle to moderate, being less than 15 % over much cif the sitei a maximum of 40 % is attained next to a south-trendingstream along the east property line. According to the'U.S Soil -Vegetation Surveys soils on the ti'.'te are an undifferentiated mixture of the Auburn and Argonaut series (Smdeelthare brown9to o,ranaeendnti have they are 10 to 40 inches together, et al. P, g , gravelly loam to silt loam surface layer on a clay loam, gravelly clay, or silt loata subsoil. Permeability is slog to moderate, they drain well, and erosion hazard is slight. Natural rock, exposures are rare; most exposures are present in artificial cuts. Rock consists of dark"- to m dium-green m6tavol- canic rock that is weakly to moderately jointed and foliated: A - joint is a fracture in which there has been very slight movement at right angles to the plane of fracture; its origin is not related to e androd�sha�ed•'minerais�that�hrewtdurin metamorieirmtion of disk- . isk- .. q )planar p _ _ g _ g rph The enclosed parcel map shows the locations and orientations of these features measured on thep Y Y P ro ertY"_ �►hehave a northerly trend with inclzn= -. ations that kange from steeply east to steeply west. Lruat east of thei property is the Swain Ravine lineament (see ' 1" enclosed map from the BUh!4d.r quadrangle). A lineament is a line { or band, usually seen on an aerial photograph, that results from alignment of visible features, including Vegetation, tonal changesp i Z stream beds, etc. They can be caused by a variety of ,geologic features- such as ,joints, changes in rock type, or mineralized veins— including faults. California Dept. of 'Water 'Resources (1919) has described the Swain. Ravine and Paynes Peak lineaments (shown on enclosed map) as { "lineament fault zones", because they consist of 'komplex 'bands of Lydon page 'three December 31, 1984 discontinuous, intertwined, steeply -dipping faults which were form- ed during Mesbtoic or earlier time" [more than about 10 million years ago]. The Cleveland Hill fault, which broke during the 1975 oroville earthquake, is within the Swain Ravine lineament, tnd has been traced to a spot 1/2 mi ;north of the Redding property (see enclosed map from Bangor quadrangle). The enclosed map from the Bangor quadrangle also shows lineaments: visible on low-level black -and -white aerial photographs. One of these trends along the stream bed in the north half of thd-Redding. property;it extends farther north, and is aligned with a straight stream Pegm6nti The lineament and stream segment together' are about 1/2 mi long, and are subparallel and almost coincident with the west edge of the Swain Ravine lineament and the trend of the south- ernmost trace of the Cleveland Hill fault. 'I Also 'shown on the copy of part of the Bangor quadrangle are the locations of faults shown on Map II -1 of the County General; Plan► Using township boundaries (the principal local points of reference shown on Map 1I-1), these faults were carefully scaled and plotted on the Bangor map, in the field, no evidence of faults a was found at the locations indicated by Map II -1 on the Redding property.It y pin ' ion that errors in photo interpretation ism o or drafting on the part of the firm that prepared this part of the General plan resulted .in these "faultso, (actually, lineaments) being shorn fArther west than they 'actually are. Examination of roadcuts crossing the Swain Ravine lineament east of the Redding property failed to reveal any positive evider►ce of an active fault (but exposures are incomplete), nor was any f eviderte of modern fault activity (aligned wet spots, 'micro- depressions, etc.) seen on the Redding property. Minor bands of chlorite phyllite in the eastern part of cuts along Bangor Park Road might represent either very ancient fault movement, or else compos"itional layeting within the metavolcanic; kbck sequence. Regardless of their origin, these bands are prtbably significant?,y weaker than the adjacent rock= thus they should loe regarded as planes along which breakage "might occur during a future earthquake similar to or larger than that of 1975. However; they 'Lydon page four Dk?cember 31p 1984 trend'NiOOE to 94509, in contrast to tho N26OW trendof the Swain Ravine lineament nearby, so that their liklihood of breaking during a future earttxuake is probably slight, The extrapolated trend of. the weestiarnmost zchioritic layer (point C on enclosed ;map) passes through the existing dwelling site, but is not visible in a 4 -ft cut in back of it. Other layers of stronq'toliation and/or minor chlorite trend into r -that part of parcel 1 that is southeast of the unnamed streamcourse. The h6mesite location shown ifi parcel 3 and all of parcel 2 are unaffected by; the observed trends. DESCRIPTION OF SEISMIC HAZARD In August .1975, a magnitude 57 earthquake occurred, along With numerous fore" and aftershocks= its epicenter was located near Palermo, 6 mi northwest :of the Redding°property, Ground breaking occurred near Palermo and discontinuoubly over a distance of 7 mi within the Swain Ravine` lineament, endl,�rg half a mile north of the property. Maximum vertical d splacemit wash, about 2 inches and horizontal displacement 1 inch. Strucutral/'damage included fallen plaster, broken windows, toppled chimneys, houses shifted off their foundations, and settling of smal1-bridg6 foundations and approaches. The 1915 earthquake sequence' triggered extensive study by private and gove"rntnental organizations into the seismicity of the Sierran foothills. co••:clu:;ions, summarized by Division of Mines and Geology Staff (1979), are that a maximum c)cedible earthquake having, a magnitude of 6.5 should be a:pn- sidered possible anywhere - in the Foothills Fault System. Dept. of Water Resources (1979; p. 119) concluded' that the potential for4future earthquakes and ground irupture in the oroville area is greadest along the Swain Ravine lineament,north and south of the mart that broke in 1975. Toppo" 'zada'"and Morrison (1982) concluded that: the timing and magnitude of earthquakes from 1976 through 198i suggest that the 1975 rupture zone is being progressively relieved of etre613,'but that stress has hot necessarily been relieved outside that zone. Following the 1975 earthquake, a Consulting "Hoard for Earth- quako Analysis recommended (Dept. Water Resources 1979) that the maximum credible earthquake ('")reanalysis earthquake") in the Oro Lydon page five December 31, 1984 ville area should be considered to have these characteriatica magnitude 5.5, peak horizontal acceleration 0.6 g, duration (ground shaking > 0.05 g) '20 sec, predominant :period 0.9 seo: SUMMARY OF :EVIDENCE CONCERNING SEISMIC HAZARD m The active Cleveland Hill, fault lies within Ok c3oee to the Swain Ravine lineament, which in turn is just east of. the 'Redding property. A 1/2 -mile -long trend composed of an air -photo lineament and the a stistraight astreamsegment lies within .the unnamed stream along the property; it is subparallel with both the Swain Ravine lineament and the southernmost exteaision of the Cleveland Hill fault. A fault shown in thOGenoiail Pian (map II -1) as crossing or very Mean the west side of the property is mislocat- ed, and probably should be coiniAdent with the Swain Ravine linea- ment on the east side of the property. Potential planes of beak- ness (chlorite phyllite layers) probabl,a extend across parcel l southeast of the unnamed stream# although they nticght'break in a future earthquake, the fact ''that their trend is not parallel with that of the Swain Ravine lineament suggests that the liklihood is , tNiignzs a ruture earthquake in the region similar to or stronger than that of 1:975 should be considered likely, although the time of its occurrence <cannot be predicted. Soil on Elie property out- side the;immed'iate-vicinity of str,eambcds is.%iell drained and has i a high efough clay content that liquefaction during an earthquake is very unlikely. MITIGATIONS Although n g o evidence of 'active faulting ;on the property` was found, it seems reasonable that future surface rupture along the southern .eXtension .of the Clevelaiad Hill fault might M5ccur in or close to the straight part Of the' 'unnamed stream (fr.014.. i1bout the Parcel 1 boundary northward) It is less likely but btiil, 'posss .bje that auxiliary, rupture might accixs' along chloritic laaere southeast of the unnamed streata in parcel 1. Therefore, a conservative tion would be to prohibit dvjl?llings east of a fine located miti 'ga 50 ft west of, and parallel with, the unnamed streame<nurse if mbbilO homes are to be placed on the site, arnat�er mitiga- Lydon Page sit DeceMber 31, 1954' tion would be i:o require that they be tied dmMn, braced, or other - Vito treated so as to resist lateral forces from earthquakes. Steinbrugge et al. (19rl) have c®natructed a correlation curve re- lacing earthquake int6ahoity at an affected site°with average monetary loss(in 'percent of value of mobile home) , when the mobile homes are not earthquake resistant., The General Plan concludes that A�maximum intensity of VIII+ should be anticipated for future earthquakes in most of eastern Butte County$ this value is consistent with the anticipated maximum credible earthquake having anmagnitude of 6.8. The expected loss from such an earth quake would average 12 ,percent of ,the value of non-resistant mobile homes, according to the curve of Steinbrugge et alit loss from injury it mobile homes is generally compara,%)Xe with that experienced in vodd=frArde dwellings. REF9REM ES bepartment of Water Resources, 1979, The August 1, 1975, oroville earthquake investigations: Calif. Dept. Water Resources Bull. 203--760 669 p. Diviseismc safetyion of mines nd thelAuburnadamsitei, i�ioal review of the y Div. Mines and Geology Spec. P+:b. 54, i7 p Rapp, , et al. , 1975, Observations of grciuna: breaks in the Orovilla area, California3 Calif. 'Div. tjines :and Geology S'pec.'Rept. 124, .p. 53-59 Smith, B:F., et al.,, 1976, Soil -vegetation ,map and tables, Bangor 7.5 -min. ggadrangle (50 X7-2), Butte Cottrjt}►, California, U.S, For. Service, Pacific Sobthwest Forest a,nd R.snge Ekpdkiment , Station, it 'p. plus map, $.kale lx 3l066,0;b Steinhrugge► K.V. , et a.l , 1960, Mobile ho,' )s And earthquake damage in Californias Calif. Seism' c S,,4-.et�y Cone 01'6sion, SSC 79-07, 29 p. Toppoiada, 't.Ro i and Abkkisdn P.W. Jr. o 1082, Eaz+thquakes and lake levels at Orovxlloo Californias ealkfomhxa Geology, V. '35, '0. 119"il6 Philip A. Lydon - Calif. Registered G,:eoing!,st # l4 tnclosede :geology attd boils idap (on pay" :rA .mtp) topographic map; from Bangor quadethgle I ' y����,yy� rm Grp J.101117MJ j,�r �^ Alan C, Rrokn SCP 245re 1 4 a! lfJL4LF �" R{ehcrb lorohorll5 4200 r Pik llowa Cotpotalloq " t6mai `OdoWk is M �IonyYond.rhoaF CP�7234 1881 A Rob;004 Slreel RLQ 900' 151-6 Oravlll$, CA 93965` U61134-1911 Ronald'L. cruvei is loss { GlVIL ENGINEERS LAND SuRVE* YoR's t6mmOf Mnioywh t5 2000 BuMo CO Planning Corms. Atigust 6, 1984 i AUG Qrovilh, Cali{Orpfa Butte County Planning 7 County Center Drive orovi'lio Ca' 95965 Attic; Dave ili,roil at{us Ile: lteriding Tentative Parcel Mali AP i 2884.0-03 Log' N 84 06-2Gk0' Dear Mrs liito iimUS As per your checRl st OP August 1., 1984 regarding the ardi - aeological urid geological surveys, We Have requested and are awaiting repljr oft the 0.rchae0l09-ical survey. Ile wish to propose the i'oli.owing mitimeasures easures and proceed w11t11the project to obtain the other department's conditions of approval. A) Pei'totin an survey prior to recordation or the proal Aiap :end incorpot,, - any recominendations into tiie project, '13) Perforin a geological Survey prior to recoxdatl.on of the Vina]: 0191) and incorporate any recommendations into tie project. Tilahi i,ng yoti in advance for your considerations Very tr'Uly yours, 111 AANHART - DltOltirN " -AS 8 *0118 1`9irwliaei S3vais hand DeVelophlbilt Coordinn'tor NOTA t Modi.i:y #� G Place a note ori. tyle final ntap tliat tlii.s i:s ail area w.ii.era niimeroiis earthquake taints occur; Spocl:al building fro"''' Visions may be »ecesaary PaTti.culariy for multi story structures-x YES; MAY99 LO) 19 RECO-ATION': Will the proposal result in an impact upon ti` ire qual it�� or quantity of existing recreational oppo rtunitbbs? II 20, CULTURAL_ RESOURCES , a. Will the proposal result in the alteration Of or the eiestructio l; of a prehistoric, or historic archaeological site? b' . Will the proposal result in adverse physical or aesthetic effects to a prehistoric or historic building, structures or object? .. c, Does ;he proposal have the potential to cause ;a physical, change which would affect unique ethnic cultural values?, . L Will the proposal restrict existing, religious or sacred uses idthin the potential Impact areal V, DISCUSSION OF ENVIRONMENTAL EVALUATION AP 28_40-03 lb,c: The steep terrain requires a cailehl placement of homesiths so that grading will, be kept to a minimum. Clustering homes near the access road ih 0110 method of reducing disruption to the site.i le On site soil erosion ranges from mediumhigh, Soils which have been disturbed or cleared Will erode at an accelerated rate. lht The project site is immediately south of the roothi.11 Shear Zones in an area Where numerous faults of known and unknwii activity converge, A geologic survey should be prepared to map faults on the Property. s instigation measures toreduceas-sociated hazards pending thepoutc1ome of this survey. 3b Development of S additional homesites on 5 acre+ parcels will not increase the amount of surface runoff per se. Culverts should be installed where the access road crosses the drainage way, Aa The site is covered in grasses, thick, brush and. trees; project development Will necessitate some clearing; Given parcel size and the abundance of oak woodland Nibitat some vegetation removal Will not be significant, 8 Ranches and ranchettes are oil established use in the gangbr community, 13a)f: A,b,T, generated bjk the new homesites will be 3E or less: Bangor Park is well paved, narrow (1.51) and windy, Capacity exists at this time, but in the futiire; increased use will Create safety hazards,. 14 t Though not significant, this project will rapresent an incremental increase in demand, for public services in a rural area, 14at Pire hazard is high to extreme, Roads should be designed to accommodate ,fire trucks; i,o, provide turn around be thru route, p y mediately east at Oro-Eangor. and CA Ile' artment of 1"orestr located �,m Bangor Park intersection. 16c culverts will be necessary where the road crosses drainage swale's ZOa; Butte county ifiaps indicate the site has a high sensitivity for archaeological resources, A survey will need :to be prepared, r App:iicant: George Redd--, A ssor's Parcei 28„_.;4 -03 DATA SWtEr� ERID Log 84-06-26-03 A. Project , Descx P�Jion_ 1. Type of Projeet: en iii(. narc'n„j may =-- -- Brief Descri.p cion:_Diy`idiftg 18f- acres into 3 narcels ; 2 0 8 acres each and l of 8 aches:.. —_ Location: On . the nor-11-side -Q f I;nngor Park t2Qad . approx. _ i southwest Of "1 t' S 11tCr� o�j i 0111- tai t�1 ni-(lzii �'-ipr W vhtW„^')yjj' ani AiG's I, 4. Proposed Density of Development: 1 dwelling !unit per- 5 .acres. 5 Amount of lmperVious Surfacing: Slight. 6. Access and Noarest Publ.i c Road(s) 13arl or Park, private "road to pareeIs . t, 7 Method of sewage Disposal:, Individual septic systems: � 8. source of Water Supply, individual wells. 9. Proximity of Tower Lines: To ori inal arcel. 10. Potential for further lurid divisions and. devolopiaohti. None umder._ ex stiri� zoning; _.. _ 1 13. Efiyirol7mental setting l Phypical. Envir.onme,ht 1._ �errai: a General. Topographic, Character: 5oMewhat will �,00`thi.11 teryain, " bi 81opes:10u20% c. Elevation; 540-6801 A.8.1,. d. l;itlt;.n� Pastore. Undulating_ turrai.n: 2. soils a. Types and Ohardeteristi,cs:. Argonaut 4 Aubil'in series; 10-W' deep brotyn_yel:lrlw/red. 81(-1-gravel-.loam. slew-moderate Rom9ability. well dra.tlinl;': b, ti=lting Vac°L6V8 fligh surface rock content , slightly acid: Natural Hazards of th. to d 1. tan - )tnOO oca ed 1Vllexe humeros raalt-s o ,. a tatthq•°uake Zone:..sand unkfiowb ri•, qty:�nitoru - _- - - b Erosion Potei?i; al :rblod: lti li, d. Vire 11azard'. 141g}',, c tandolide Potentialt Depen..'„ e. Lxpannive $oil. Pot-en.ti.a.lr:,.� on .r,10 )es lots °Ni s1t hi It , 1 _ �#• �iyd,�ol.o�y a Surf;aae Wader: Dllainage swal;e on 11rialjoti, ct•rt1111_t;1ry ,nf WA_t_s_t�l�,_ free-k WL Append Ii.It �' ia� �f luta . Sheet .continued AP 28-40-0 b Ground Water: Unknown resource. c* brainage Oharacteristics: Natural .drain flowing solith t,i - Creek. Creek. d.; Annual. Raitfall (normal.): 30" " e,. Limiting Vactors: Setbacks from drainage Swale: �. 5 Visual/Ocenic Quality::. 11ighly° scenici unspoiled bg deyc„lommrsnt_ 6. Acoustic Quality;, Good. ... , 7 Air Quali:,y:Good. nioloftival Environment B. Vegetation:_..i4orivy brush. trees, gasses 1 Wildlife Habitat: Oak woodland habitat. Oull;ural Enyironmerst: - I ;. 10. Archaeological and Historical, l:esources in the area: Hig) 11 13utte County General. Plan do ignatioll A ricultural��Zesident' iM' 12. Existing; Zoning:_ A�5 _. 13. Bxisting hand Use on-sitet ... no 'house, remaining lands in natural state, 'Irk=:Surrounding Area ai, Land 'Usos: Ranches and ,ranchettcs, doveloped rural. ranchettes. south. _ b. Zoning: A-5, A-160. N a. Gen. Plan designations: Agricult'ura.t,:'iZesidential, 0_en §. Grazing, d Parcel Size6•: _ 5-220 acros, ;predominan;tl.y, 40 acres and less, e.. Population:, 156 Ohar,aotev 02 Site and Area:.. Extremely rural 16 Nearest 'Urban Aroa:_ Oroyille more 'or less is milds north. -northwest; 174 Aelevant Spheres of .ln `l.uence y 13aneor 18. lanprovements Stan0ards 'Urban Arta: h1a . 194 Fire ProtectiO4 Service: a. Neaxcst Count:.. (State) Piro Station', S. at to—.bangor and 13angot __LS b. Water Avail abil.iLy 7 ,_liuhl7cr _truck„ Park Road. r Me Sohool.a in Area!,_. 13tn�ior th on 1llbmentarYlOrovi,1le 'High- ighAppend Appendix x h (b) Al