Loading...
HomeMy WebLinkAboutPreliminary Geotechnical Evaluation portion of Roripaugh Ranch / µyi L 6SZl � � •.1 0 l , / 1 � ♦\ ! . 9Z t / / / �' nzl / , d0 Z l L 1 Z S SZ '� ll b Ts♦ _1 , 1 Z6Zl � S �.ZSZ! � SZl �l'SS l LSZI ■ i �, S Z9Z 0 98 1 6 Z S'L l j Z6Z`_/ y, �♦` p ` , / 4 I g 1 ,€ Z! j 68Z! L L'8 Zl L BSZI L SSZ »L L ■ 8Z t 0'8 ti ti LttY � v ti _ 0'ZL 1 I 0- Sz 1 Z L + / S'L0Z 1 a u `r �' xy'0 ti 0 SBZ I 0 �, O'06Z1 s Zl 0 FLZI 0' Zl 8S B Zl '� SSZ 0• l �; Zl - i S 9 ( Z'LSzI �(7 /T9 L SLZ 1 / mot _ _ - - tt= _ _ .t, �� 6 � 9 ► ���� � t , o � • YSh ' v 9 yt Z hS ! Zl + 6S Z I \ ♦ I l LLZI i f LZl O'69Z1 Z S9 l Z l9Zl 6'LS ( . 1 0' S l ,00a o 'SLZ l ` OBZI �9 Zl g•S 9'fiSZ Z � Zl '6�'Zl I , y 6'LSZI G , �� o £F ♦ - � . � \ `'` '` Lt � I .- 9•Y9Z ` -. � � \ � ` A— �� I s L, \ /V l Q �I�h 1 _ - - _.- _- .. - - ' "`------m� rS'9Zl 'f 4 e`i 8 1 ♦ S S l H SS �°' S' �Zl Z1 Zl' - / 6ZF + o � � y 0 l ` 0� Z! �• l ' L S�� s�'G, l 1 �'v`�Zl - ,� i I�° � , ' :. ' L.g� � £' l • S rr, S• 9 t ftLl a=, r IS 1 Z 125 9Z \ _' - J rt, ■ Z—e , 99 l �'OL9 '0571 oltl - - - ■ ; w 0 S 1 9�Z1 L 0 f�Zl ' S'LtZI ■ ' p r4, ,, � � �1 .�,�'ts='a'1 �� � � 0 � l Zl ZB Lf ll i '9FZl � S Z • , — � ' �� i ' ZZl � I I /� v • � / � S' SZl •s•o Z• .z / a= — —_. ,., Z F L I ® t -1 - � 9zz1 ssz ,9'tz S �58Wd gt/ /_ 9 A I �• 1 .,. 61 SZl � � S' l t ' Zz—e ,_, I — x l 0SZ ll W a„ ■ _ ' \fill Q7r,t -�-- -• 98+[1Z t" Op+d! A7:9, ♦ - •. O sazl ` - zv—® - 8 o, 7 aLl L'1SZl .t 'a't a l ■ \ 1 * a / oor — — ,--^— t s 9FZ! y a t�•Q•1 pl=1 S' _ - O 0 BFZI �• a•� _� a Zia I. / Hz 00 00A o o p ■ ; srrtr 9SLZl / 6 \ �" tFZI ' �, —..` '� �� --- Z! F'l PZl ♦ // �C,l `. AF I. 8 zl � ! zl ■ I 1 0 9f�Zl I 7 Zl / 6 ar, _ 9 z� ! ° s��z! , 9 8 6 5 W d �,� , 8 0 �Pz1 r�z! - ■ I . / �. SG c t sr 1 / rrr SPZ! / j \�_ t J o,y ♦ l ZZ �9 Wd l - n= o« � °ZtiZ� / �" I � ; / ■ / �'� Zl / g' / 6L Z S�Z! �Zl ! Z OSZI I I / I ' S �� l `�• // I■ 190SZ1 j / / ■ -- 6 8Z a 8� l + + i EL '. .. * ._ ... ` 'LB - �, X / -` ♦ t �' ``_ j r 8SZ! # LSZI � � =t,- / - - _ �. / _. �` . . - .. � _ _ - _ _ .. - - - -' - ✓�/ / • $°- 0 _ � / / / ` �, . ■ D'0 ! � 8 / S'LLZI - `"` , - 1 S Z9 ti / / .� � l ■ - �l r , o BBZI - S / s'bs • � l - � $� L F9Zl L'£'9Z! ` �9Z1 � \ / �: - �. --- - � _ f'• _. �� 08Z1 P L. 0 9 l p p • / h / =•ai 0'L Zl / x9 , o� _ ! —+ �_ 1 j — i + � � t ♦ I . . ' � ` � \ i / `�. E j � _ t� .. '�;. / i �� —xa �r / -ai, ! �9 ! /' -- ;( , i O� ,BC 7 `�rsr � ■ �— �`' �_. ', 1 � / / i ` �- r ••• 1 Z�., ..! 6SZl Zi L' ! F' SG 1 ' t t ,■ / I /1� % r �/ '�, —r•7 � l �" ' ,,, . , � \ / \ � ( ' t �\ ! f�V 1 � J- L � \ � , .7 'v Zl + S7� r^• r,./ r f.c y/ � ,' �• t \ �� ✓ 5 / l �, \ of \/ , 7 — .\ r '(� r I Os + Ittttttttllttttttttt . ■ tttttttllltttllllt! ■ . . . ■ . . . . . . . e . — f n ,♦ !! � /, ' = •'.� ! , �/ , Z 1 ? I / � n_ � -_.t;-�-�;�� �'�� `.-�'; � k --x o `` I ► ` �'S9Zl � � � � I � — ;£'8aZ! �\ � 1 \ I � :•� � � I , / 1 \ ` �7 L 9� L r..- / l sz, /f ., 1 zL r z' 1 L 6 l �Jl a 3 N N 3 x 19 r I f j Z S9Zl Y:.'" ` j / r y^`L°Z! I , q 1 'i-pG! ♦ / I ; ti''�• 1 ' I � � � 6•!!/' I r � i ,� ; ► 9 ! - — " r n '� r 0 6—9 G—f 0 33& Q_/Q 19— n 6 ON 1 SNI ( ` / f ^ ` �� `i /ter r/ ,a• '\ ` 1 \. — , �, I i n-,. i \ ,� \ i `,J• ! �.. 4' �` /, Lyt ..6+ ``G '�, - /,�./✓ /-: \•ti •�• t� •' f f ` OMIL I Tsrtl QD.I, _ ` `\, 5.,;Z! / n":cc�' L — / r " ''��i / _Zl �°� `, / �c / �t d7�, \ _ s t�.~ � y _ j ? i >'i � ' %' ■ , - : , _ .� � � (}�i / '� / , \/ t n\ l f \ �! �- / _ .� ._, � -+ � ` / / i�, /7 N \ 7i / \ / 3y,/W`� >v ' /• -.' � w V •/ 1 � - / / ' \ ! t a ?0/ 1 DO / 1 _ / / p' j7 �� // / I� / L q�G L /� {L li 1 1 i s/ 1 �v� / Ta�r '\ I � t �+_\ �' 1 r l / \ 0�` • / S' _ j j i �`�- I � '�► \ I � ' / 64 *4� 9Z1 - ?gZl ff \ p' �� ,� C1 i �°. \\..., �� /'v •�'`/ , •\ / _•. -'U Y � / I � , \ i f•/ :, . �' � \l, \\ 1 t 1 / � � \\\ �. � � /t B G' l i / y L ! � �, ♦ ,, l,,Z! ! Z9Z 1 � / Z�Z L'' j � •C/'�'•� :,�, ./ ='ti \ + !j,-�� av �,, s�'� ►v �-. � ,< J/1 �. / �. � ... •, 1 -� •\ / ,/�- r � ` j I S6G l .♦ S 9 Z! x� , �./� l 1 S l v l 1 �:� ! ' , t i - \_ " +� I �zl °j/ C�, ; ,ryv f l� , ,oo� ! '� 7x :�\ / a 0 9 l F 9LZ / �, c, I r v ! r r a 1 \J r j � Sti``'� � �.o � • �� / (, - _ ,�. l! ' ` ��BI?I '` + �' r• 'ao \ V� o a � Crt w � � � � \ `'.-,,\ tF ,\s / /! ..r !� ■■ I /AC1 � , !8 1 r �. , _ �. - d r, j \/ vL - ,a �� / °' o ,� �•, °� / / � 99 Z—ZL 0 03& 91?1 1 �'z' ON 1SNlSul 1 '99Z! S9Z! L•! I 6 Zl 6 9 Zl � 9L9Zl - / / a � g9 �� \a.tip zL ! \ / R I• �. / 6 Zr 9 ! \ a •, \ w �SLL '^� ! �' _� as _ _t •�o y 1_ / '6t � � �� / l � r ., - , �■ Imo, �� _ BBB ` � ► -c j 6/LZ S' Z1 OB ! LZ/ �,, m '" .g9 ti r ( � 6 �! 0 I V r: a . ; � i / \ � , / � s [�6 l ^. � Ly 8 0 6 l SLL - ' - ' �' j 6G SO \ ' \ - '69 ! ,�/ / S•l9Zl o�' �� � • � , l L8�' � � 6 ! I � � �! - �I � :y 4- / 8Zl , �.p � !/ i1 0 OSZI ., 5' f Z � ( � .. ■ , �` B nE l !� \ 0 B ZI j t 98 � \ f B' 0 ELZI s/ t/ ti at S SFl .. V I Z'P6Z t 8 l 6 0 0'49/Zl 0 vS 0 d / �•—� t ` �/ �� j Alip �bCU_JO 3H i_Ol ONIO�I000b' `dIN JO�I�b'O �0 �1d1S �QIS�1��1�1 .�0 �1N(100 b'�n33H31 �0 .. )11J 3H1 •Nd1(11d3kN (INb 7DSyB ONla�lb'N i3e Nb'S � g .001 = .,i 133-4 Ni 31VDS `1S3M z 3ON`d�1 `H1(lOS L dIHSNMGl `0 N Z 31d1d Z 0103S A0 _�_WH HiKN 3Hl A0 IVH H1d0N 3H1' o fueduro�J.C�d ,, ., e N sad iaassv,�c�e uO1c{ /9Immune oo� oo� ooz oo 0r!0/S :a�aa dad/01�1 :}sl6oloaO/1saulBU3 1. ���i���s H�� v� 1_�D y vcil&o� �001=«1 :910oS 100—�10066 :fold 12991 '. 0 \C� i - o t�IN�O�Il�fO `JllNf100 3QIS�3AI� .0 b'7 7 b'�I1 �'���10� yl - ` HON�'d HonYdldOd d0 NOIldOd V 61996Z '0N 1OV81 N I d0� �1b'� _J0 I IVJS ]1alS�]nl� _J0 )\INoO v noiWl Ao /�io ] Hi'- NI 3AIlVIN31 `dM IVOINHO31030 0 IN THE CITY OF TEMECULA, COUNTY OF RIVERSIDE, STATE OF CALIFORNIAGEOTECHNICAL MAP, TEN TATIVE TRACT NO. 29661, A PORTION OF RORIPAUGH RANCH 5 CONCEP TUALA Y CALIFORNIA o t ACT N 0 ° 2 6 6 1 _ Proj: 990013-001 Scale: 1 "=100' RORIPAUGH RA N C/ / �/ ' Engineer/Geologist: ATG/RFR Date: 5/01 0 EC/FlC PLA A/ _ Leighton and Associates 0 0 100 200 300 400 AGTGCompany , THE NORTH HALF OF THE NORTH HALF OF SECTION 20, TOWNSHIP 7 SOUTH, RANGE 2 WEST, �, AN B NARDINO BASE . AND MERIDIAN, THE CITY OF TEMECULA, COUNTY OF RIVERSIDE, STATE sca p — PLATE 1 Z j OF CALIFORNIA, ACCORDING TOTHE OFFICIAL PLAT THEREOF. LE IN FEET _ ,c. LEGEND tz I � E.kRTH UNITS FAfUjARTIFICIAL FILL UNDOCUMENTED L It \ i QUATERNARY AL QQI/QC LUVlUM/COLLUVIUM UNDIFFERENTIATED ' BPS QUATERNARY PAUBA FORMATION CRETACEOUS GRANITICS " _ .—.—. .— .— ———— —— ---` ..e■ . . . ■ . >— . >—. ■ a .1.. ( ,>� ' -- ■ . L� �J J —.� ' I,fi SYM 80 LS � r•—, �—_J ■■ �s■ ■ ■ ■ ■� ■ ■ ■ ■ ■•■�I"��■'i�■i■t�s'�■ ■ T�oi■1'■ ® ■ ii■%r��■■i`,■ ■ ■ ■ r,. ■ ■ av■ ■ // �,�' — ' I �� / T-76 LEIGHTON EXPLORATORY TRENCH, CURRENT INVESTIGATION / ,�� / ! / r--` _._i \ \ \ , ! ` / ♦ \ ,x. I—'_■� LEIGHTON ♦ ' , /// �. Q FAULT TRENCH, CURRENT INVESTIGATION � ♦ � / , / � . \ \ \ L5.7 / / tr•, \ \ �� � ( I \ � I � /' ••.. .-- .% \ � 1 ' , ` , r � ! � t� ' ' / :' / % /� // / .pn i I� � � / I( , / / ,',y ♦ -$ �� ,� I ' ! I 1r1—1 � � ,•.. �� , �� ��► I V ♦� 1 Ill . , , t t / •. /, / >/ f / \ .. � /� ,�J� , a / / ! / I % / / / y _/ I , • , i l / / ♦ \ I / / 1 ' J \/ I ,,,� ,, \ I 1 _ I /// J, ( I �� LElGHTON FAULT CHECK TRENCH CURRENT INVESTIGATION ; , , / `, � : � � .. \ ♦ 1 � ;- /. / / /I / ! • ' / _ ♦ � +1 I f I,,, TION I /�` ��/ /'� \ ✓/ /, r , I I / \,r \ ' (///1 / , j/ \ ■�— 7 w 49 f / ► \, t , ' , l , \ ( I !� �� /1, !I j � / a ► LEIGHTON SMALL DIAMETER 1ufETER BORE NG, CUR�EI�T'� . , ' •— I� . `' � r �. . \ ,- •.. \ •. . , 1 � I \ I I I I, � I / / / - , /- ; � / � / /. ► 1 f i I I � : . � ... '`. 1 I � t � �� I . / � : � , • . � -� � � - � \ � ,a / \ � .. I ! i _ '• � I ( � ( / / / , � � I � I 11 I / \ ll 1 f 1 ,\ 1 1 / / r _ ,,m_ ► ` _ /' , \ , , lilt , , . , 1 . INVESTIGATION WITH TOT / O� J , 1 ��`�. 1.. 'Ill/l �> �`� ( r , / ,C �, ) C AL DEPTH IN FEET. / ! - . % I 1 � \ �� \ yp ` j ! � \ � 1+1• 'r "`- T•D i 4 l•�J 1/ //f `l ! I /■ � � / r t ^• ` \ ,\ ',� � --� / \ `ice...-- / t , -i 1 •1 \ /r r r r I I� I l /' / j t � � i I , I i r � ` , { 7 � ^—'// ` � '�1• 1 1 1 \ : / - ^•--- 1 s'+ I I , I / / J ! / f , I ,I ,1 ! i � / l i i / 11 ,+ l 1 i �``• ,f - r / I 1 I 1• I ��. � � ..l. I l J . ' •' / � l 1 ,� �, .xb•' ��— _�.— JJ// I I ! ` �; I 1 l sa �`\, . `.•�.�r�-�.�.•— — , ; /, , / �, , ' ✓ •i ( f 1 1 1,�,,, , , j , LB-7 �.► o f• i 1 !.,- \ - —� 111I ► I /� I�Il f J ___ ! '1 /;! i ; ;r ,i I I:t ,_; I ! ; `� \, ���it LEIGHTON LARGE DIAMETER BORING CURRENT I ; / S /; i t , ti . \ ;/ 1 / --� '►I I� I I 1 ' 1 :, 1 I1/4 1N1�ESTIGATION WITH T{3T �� \� / 1 i � 1 � ,. � :�+rtlr,l,iIII � / l / r ■; T.D.=50 S - Q� / ! 38 APPROXIMATE LOCATION OF GEOLOGIC CONTACT, QUERIED W HERE UNCERTAIN T. APPROXIMATE LOCATION OF FAULT LINEAMENT / �1A ;� '°°---� ,'� �>:—..� ; BY KENNEDY (1977) _ . • � � ` � - -`-_. . � � / Z��' /�"';�: � _---ti_-� � �_,. � �� `--__ �: '� � ;� / - -� ` _ / � ��o� STRIKE AND DIP BEDDING Iva Asa SEE EIGHT OCUTE ,�,- I _2 ' If dmwow ~ / _ _ l I ` f S 0 X 10 Qal 1315 y 1C ILI Lj 10 s ` . ' + / Its // ® N ' ® • � - Or � � `\\ /V25+00 CR dOW IVf\\ 1000, -IF T LI N c� 'ems 131 Q.p - / . 1 � FT-5C � ' .ter � '' ;` ,ns_ -- \_ /,.-' . \ ` ; ' , • 130 1 -- --- ----------------------------- ------------------ - '' KENNED (1977 B_g ,�, - / FA LI N EA'vI 1 1 i ,7{! 1230 T.D. 8 1 \ 1 i INST• NO 392258 REC'D 10— 11 —9 4 ' � L11 ua 1. I • f '/ ,�* 1340 6 000 ,,,p / // ,� Q � y 13 11 �- ---------------------------------------------- - ----- 92 97 ,,,, 13 5 '`e 30.0 1 � x 3 37. $ • / a 1 , / • / 12 .0 / •5 21. I 13 1 3 9 S $ I / Af u 1 1 _--- -- - ', p � •o ► 1312.0 1 s� ,2�'` ■ l 1308.0 1323.4 °' 13 .8 T `°� / 1 INST. NO 5 6492Q C'D — 76? /1— — .�- �ti' 1 9 O �_ a� v �' , 7 � �i/ 1322.2 13 1.4 � 305.0 1 11. / 4 • �� 5.5 „ 1305. E -- ---a'------------------- 0.0 x 1310.o I �.D. 66 79 ,� ► _ 1 , 0 296. 2 A 130 . l 3 .fit a CI 303.9 '��e '0 129 .0 •�9ss \� / 6.5 .u., D 12— ,.r 12 1 ♦ 2 0 t 1 II 130 .2, 318. 288 \ 1 51 T AT V T R -"1"ftftw8mvft �*j )TT) i 1294.0 I —� TRENCH FT- 1 NORTH WALL 0+00 0+10 0+20 0+3 0 0+40 0 i t0 0+60 i I I I Top of Trench : Topsoil Qt 1 : Op O Qt Qt Of �®� O Qt O op ® 7 © 7 Qp n Qt 6 O QP 6 © ; Of 0 = Op z : Shear? : Basal Gravel Fault: N 11 E,41 E m Sit Minor Fractures 1/8" Thick Fracture 5 - N50OW DESCRIPTIONS : Qt O 1 DARK BROWN TO DARK RED BROWN, DENSE TO HARD, DAMP 5 TAN-GRAY FINE TO MEDIUM SAND, COARSE : ®: OLIVE-BROWN, SANDY CLAY, STIFF, HARD, DAMP CLAYEY FINE TO COARSE SAND, ABUNDANT CAUCHE. MASSIVE,. WEATHERED O SAND GRAINS, DENSE/TIGHT, DAMP TO SLIGHTLY MASSIVE, ABUNDANT CaCo3 AT BASE OF UNIT, PALEOSOL? PLEISTOCENE SOIL?. ABUNDANT ROOT HAIRS. MOIST, MASSIVE, RARE ORANGE-BROWN STAINING MINOR ROOT HAIRS OSLIGHTLY RED, DARK BROWN CLAYEY SILTY FINE SAND. © SLIGHTLY GREEN TO TAN-GRAY, FINE SANDY CLAY- TOPSOIL HARD/STIFF, SLIGHTLY DAMP, MASSIVE, MINOR CAUCHE, , TO CLAYEY FINE SAND, DENSE/STIFF, MOIST, MASSIVE DARK BROWN, CLAYEY SAND T3 CLAYEY SILTY SAND; ABUNDANT R60T HAIRS, CaCo3 LINED JOINTS HIGHLY FRACTURED, ABUNDANT DARK BROWN TO BLACK DISTURBED FROM AGRICULTURAL USE. STAINING ON FRACTURES, ABUNDANT ROOT HAIRS ALONG O SLIGHTLY RED-BROWN MEDIUM SAND. DENSE, DAMP, MASSIVE, FRACTURES. CLAY IS WAXY, BENTONITIC, SHEARED. SCATTERED CALICHE AND ROOT HAIRS, MINOR CLAY OQ TAN-GRAY FINE SAND WITH MODERATE COARSE SAND. 4 SLIGHTLY TALI-GRAY FINE SAND, DENSE, TIGHT, DAMP, DENSE, DAMP, MASSIVE MASSIVE. ABUNDANT CALICHE. JOINTING, FRACTURING IN UPPER 2-3', ROOTS ALONG JOINTS/FRACTURES NORTH WALL 0+70 0+80 0+90 1+00 1+10 1+20 1+30 1+40 I ( I I I I I I Top of Trench Top 011 i w ' Z_ ® Q g v O t r- ®� Z Q ® Z ------- 179 5 Top of Trench :Fault: N06E,49E ; DESCRIPTIONS OR FAUBA FM RED—BROWN CLAYEY MEDIUM TO COARSE SAND ® DARK OLIVE—BROWN CLAY, VERY STIFF, HARD, ® PALE TAN FINE TO MEDIUM SAND, DENSE, 9O DAMP TO MOIST, MASSIVE ABUNDANT CoCo3 AND DAMP, MASSIVE, MINOR MANGANESE STAINING DENSE. DAMP, MASSIVE, MINOR TO ABUNDANT CoCo3, GRADATIONAL CONTACTS WITH SURROUNDING ROOT HAIRS. GRADATIONAL CONTACTS NEAR TOP OF UNIT MATERIAL, MINOR ROOT HAIRS IN UPPER 2-3'. WITH SURROUNDING UNITS. WELL CEMENTED, GREATER FINE(BUT COARSE GRAINED BROWN-TAN FINE SAND WITH MINOR MEDIUM ) > ' - OF UNIT; SAME UNIT 1 SLIGHTLY RED-BROWN, FINE TO COARSE SAND. ® SAND, DENSE, DAMP, MASSIVE AND CLAY IN UPPER PORTION O ® DENSE. DAMP, MASSIVE. MEDIUM WELL CEMENTED, FRIABLE, MINOR CaCo3 ® PALE BROWN MEDIUM TO COARSE SAND. DENSE DAMP, MASSIVE, MINOR CoCo3 © PALE BROWN, SLIGHTLY CLAYEY FSNE SAND ` DENSE. DAMP MASSIVE, SCATTERED TAN, FINE TO COARSE SAND, DENSE. t CLAY STRINGERS. DAMP, MASSIVE, SLIGHTLY FRAIBLE, GRADATIONAL CONTACT WITH SURROUNDING UNITS. ® TAN FINE SAND, DENSE, DAMP TO MOIST, MASSIVE, GRADES INTO SURROUNDING UNITS. y` . . .. NORTH WALL 1+40 1+50 1+60 1+70 1+80 1+90 2+00 2+10 Topsoil w Top of Trench : Qt Qg Qt \ 'a / Q QP • QP : P 1 Joint/Fracture PALE, TAN, FINE SAND, DENSE Bottom of Trench MOIST, SLIGHLY FRIALBLE, WELL CEMENTED. MASSIVE, FEW FRACTURES/JOINTS. RED-BROWN, MEDIUM TO COARSE SAND. Q TOP 1-1 1/2' IS WEATHERED, JOINTED. DENSE, DAMP, SLIGHTLY FRIABLE, MODERATELY VERY MOIST TO WET AT BASE OF TRENCH WELL CEMENTED, MASSIVE, SCATTERED RIP-UP -�- (6"±) CLASTS FROM LOWER UNIT. GRAVEL/BOULDER ' U LAG DEPOSIT AT LOWEST POINT Li.1 I— PLATE 3 0 0 / TRENCH FT-1 M RORIPAUGH RANCH Proj: 11990013-001 Scale: 1 "-5' Engineer/Geologist: RFR TDate: 5/01 0 LEIGHTON AND ASSOCIATES, INC. TRENCH FT-5A i 0+50 0+55 0+60 0+65 0+70 0+75 0+04 0+5 0+10 0+15 _ 0+20 0+15 0+30 0+35 0+40 0+45 1 I I ( 1 i I I I I I I I I • I I - Soil Profile RR-5A Bench ———————.-— --———'—— —— —— — Trench Left Closed ----- ---- -- ----0------------Bt----------- `^--' --— Bt _ O (Water & Telephone) Be ?�i ------------ ----------- ------ r� C _ � r Bottom of Trench DESCRIPTION DESCRIPTION TOPSOJU DARK BROWN, CLAYEY SAND TO CLAYEY SILT, O FAULT N 15E 30SE SHEARING IN SILTY CLAY SAND; ABUNDANT ROOTLETS, DISTURBED FROM AGRICULTURAL USE ® FAULT PARALLEL, FAULT A WEAK SHEAR PLANES ODARK BROWN TO RED—BROWN, DENSE, DAMP—CLAYEY FINE CLAYEY SAND, ABUNDANT ROOT HAIRS © FAULT PARALLEL, FAULT A WEAK SHEAR PLANES ©LIGHT BROWN TO BROWN. DENSE, DRY TO DAMP - ( FINE CLAYEY SAND AND SILT I i i I 0+90 0+95 1+00 1+05 1+t0 1+15 1+20 1+25 1+30 1+35 0I40 0I45 0i50 • � � � I I I I I � I Top of Trench Bench Trench Left Closed ----- ----- - -� 1- -_ _---_ --�- - - Bt Q (Water & Telephone) r — Bt — — Be Be — - - - - - - - - -- - - - - - - -- - - - -- - -- C — C - — TRENCH FT-5B 0+00 0+05 0+10 0+15 0+20 0+25 0+30 0+35 0+40 • I Bench 0 Bt i ~---------------_— DESCRIPTION ZO Be TOPSOIL- DARK BROWN, CLAYEY SAND TO CLAYEY SILT, SAND; ABUNDANT ROOTLETS, DISTURBED FROM AGRICULTURAL USE O O DARK BROWN TO RED—BROWN, DENSE, DAMP—CLAYEY FINE CLAYEY SAND, ABUNDANT ROOT HAIRS - QP (I)LIGHT BROWN TO BROWN, DENSE, DRY TO DAMP FINE CLAYEY SAND AND SILT TRENCH FT-5C 0+15 0 f30 0+35 0+00 0+5 0+10 0+15 0+20 0+40 0+45 0+50 0+55 0+60 0 i 65 of 70 0'75 I I 1 I 1 NE TRENCH FACE Bench A ------ --==-- __--=���— A A BeSt Bt Op Bt Btz Btz _ - Be ,_-��--i — Op r Planter Tabular Laminated Medium Sand Poorly Sorted j Laminated Sand & Silt i PLATE 4 I j DESCRIPTION TRENCH FT-5 A, 5 B AND 5 C A HORIZON (TOPSOIL) 10YR 4/2d. m-2msbk. sh, so, FLOWERS/DISKED R O R I P A U G H RANCH Bt SEE ATTACHED DESCRIPTION (SOIL DATA) . HORIZON— Proj: 11990013-001 Scale:- i"=5' Bc HORIZON—SEE ATTACHED DESCRIPTION (SOIL DATA) a Engineer/Geologist: RFR Date: 5/01 LEIGHTON AND ASSOCIATES, INC. TRENCH FT-6 EAST WALL 0+50 0+60 0+70 OI 00 0+10 0 20 0+'0 0'40 1 1 1 Top of Trench topsoil O W 3 J 0 O � Coarse Sand 3 _ Silt and Clay C ) / t— • Coarse Sand Grades Laterally to Fine Sand, Q _DESCRIPTION Interbedded with Coarse Sand 60+55(±) O SLIGHTLY RED—BROWN, FINE TO MEDIUM. SAND WITH MINOR COARSE .SAND, VERY DENSE, CAMP, MASSIVE. ANGILLIE• DEVELOPMENT IN UPPER 1-2',. MINOR CaCo3. GRADATIONAL CONTACT WITH LOWER UNIT 2O O PALE GRAY—BROWN, FINE TO COARSE SAND. DENSE, DAMP, MASSIVE; SLIGHTLY FRIABLE. RARE LAMINATIONS. THIN BEDDING IN ZONES. O PALE BROWN SLIGHTLY CLAYEY. FINE SAND WITH MINOR COARSE SAND, VERY DENSE/STIFF. DAMP TO SLIGHTLY MOIST, MASSIVE, FRIABLE. EAST WALL 0+80 0+90 1+00 1+'0 1 i20 0+70 1+30 1+40 1 1 1 1 1 W Coarse Sand Top of Trench Topsoil Bottom of Trench Bottom of Tench Contact Fades ® DARK RED—BROWN, SLIGHTLY CLAYEY FINE TO MEDIUM SAND WITH MINOR COARSE SAND, DENSE, DAMP TO VERY MOIST, MASSIVE, MINOR CaCo3 CONTACT WITH(3)Is GRADATIONAL, DIFFICULT TO SEPARATE • 4 L�. L Z C _ PLATE 5 c c TRENCH FT-6 .r- RORIPAUGH RANCHCr c Q Proj: 11990013-001 Scale: 1 "=5' z O � Engineer/Geologist: RFR Date: 5/01 LEIGHTON AND ASSOCIATES, INC. TRENCH FT-7 0+00 0+5 0+10 0+15 0+20 0+15 0+30 0+35 0+40 0+45 0+50 0+55 1 I I I I I I I 1 1 D Qps i ® Z r-,-i Fracture DESCRIPTION 1D TOPSOIL: BROWN TO DARK BROWN, MOIST, DENSE AND HARD, BLOCKY O PAUBA FORMATION: RED-BROWN, VERY DENSE, DAMP FINE CLAYEY SAND. MASSIVE MINOR CALICHE I , , I I 0+65 0+70 0+75 0+80 0+85 0+90 0+95 1+00 1+05 1+10 1+15 • I I I I I I I I l I 1 LLB O = O Qps O U Fractures Fracture Fractures { i , i I PLATE 6 i TRENCH FT-7 RORIPAUGH RANCH Proj: 1 1 99001 3-001 Scale: 1 "=5' , Engineer/Geologist: RFR Date: 5/01 [LEIGHTON AND ASSOCIATES, INC. n•rlrnffinrt QQnnl n01 of 5 n1 frAnnh rill lei