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HomeMy WebLinkAbout01 - Appendix B Part 2VaMMM n Volume 1 Report of Geotechnical Studies Proposed Newport Banning Ranch Development City of Newport Beach /County of Orange Plates 8.9 - 17 Prepared for: Newport Banning Ranch LLC Prepared By: GMU Geotechnical, Inc. July 2011 9 9' (South) (North) 120 120 GB -9 (Projected 1701 Existing Ground Surface 80 West Coast H ighway 80 w w Z_ u Z_ Z . Q,tm.. , Z 0 40— > of ----------------------------------- - __- ______________ - -- -— > W J ___ __ ____ ____ rMUo - ------- —- -- � - - - - ".- - — -- -- - -- -- ----_— _ -- --- - o cMSu W Qcol - _- _ - __— --- __ -- - EXPLANATION Qal Alluvium _ `s Notes: Queried here 1. All locatimuareapproximate. Queried Where Unkrwwn 2. Qspls la,formaaga has 0 40 80 120 Approximate Graphic Scale beddi&mntnll ru general structural been drawn to Illustrate the general Horizontal: 1 Inch Equals 80 Feet In of Man Made Fill nature set g=ntle olds, wargrg cross bedding and minor hn, cross Strike and Dip of Bed fault oHSetz. Qail Colluvium/Slopewash Deposits I�g I. -t -- Groundwater Table IQ —1-1 L Marine Terrace Deposits San Pedro Formation FJMtJ GEOLOGIC CROSS SECTION 9 9' PLATE GECEFECHNICAL, INC. Project ect Name: Project No: J Date: 8.9 Newport Banning Ranch 06- 163 -00 July 2011 10 10' (South) (North) 120 120 Existing Ground Surface B -5 (Projected 170 Feet)) w sa so West Coast Highway Qtm LL z z O40 _____________ ____ _ ____ ___ _ S___ ___.._______________.�_._z_.__— _ - _______ 40 O - -_ —_ -- of- -` —_ \� 28 ___ __ - -- — 6 — — _ - - -__ — __— - -_ — (M8L) 0 _ _ -- Q— _— _- z- --__.: _--- _ —_ —__— _ —_— -- _ - - - -__ _ — _ - -- __-- — -40 EXPLANATION Oal Alluvium? Notes: Geologic Contact, 1. All locations area roximate. Fp Q ueried Where Unknown 2. Beddirilto in Ospis largelydiagamwrera and has 0 40 80 120 Approximate Graphic Scale of Man Made Fill been drawn m illustrate [w in, c...s general ud minor nature (I.e. gentle folds, warpng crass bedding ant mimr Strike and Dip of Bed fault onsets. Horizontal: 1 Inch Equals 80 Feet LColluvium/Slopewash Deposits �5 I_ �_.I G roundwater Table E Marine Terrace Deposits Pedro Formation M U F GEOLOGIC CROSS SECTION PLATE 10 -10' Qt-1 LSan 8.10 J GEOTECHNICAL.INC. Project Name: 1 Project No: 1 Date: Newport Banning Ranch 06- 163 -00 July 2011 11 11' (North) (South) 120 120 GB -4 (Projected 150') w 80 of Existing Ground Surface 80 w LL LL Z _ O40 _ _ _,____ _,___.__._____r__ : _ - -- Q col __ _______ .-__ ________ ______ .. __ _._�_.__ ___ 49 F—___._ _ -- w—_ -- _ _ — �� ._.. _ �_ —_ -- ----------------------- _ — s ---- - - - - -- IMSLfO______ _ _ T__________________ C___________________ ______________________��_� - - - -- — __ w = __________ �T __Y___________________________ _ 0 (MSL) —_._ -- -- - - -_ _ 40 - -_ 40 EXPLANATION Qal Alluvium Geologic correct, Notes: 9 1. All locations are agxoxima[e. Q ueried W here Unknown 2. Beddlrg shown in Qsp is largely diagamatic and has 0 40 80 120 Approximate G Scale been drawn to illustrate the formations general structural raphic Horizontal: 1 Inch Equals 80 Feet Id Man Made Fill 5 ncture(i.e. Write folds, warping cross beddiigand minor Strike and Dip of Bed faun onsets. Q col ColluviurMlopewash Deposits a Groundwater Table Qtm 11,1 Marine Terrace Deposits San Pedro Formation (AIL GEOLOGIC CROSS SECTION 11 -11' PLATE GEOTECHNICAL.INC. Project Name: Project No: 1 Date: 8.11 Newport Banning Ranch 06- 163 -00 July 2011 12 12' ( West) (East) 12o 120 GB -4 (Projected 150') 80 80 z Qtm of Existing Ground Surface z z I — Q Col Qtm z __._._____._.._- _ a-- — - -- - - - - - -- -- -- __-- - - -_ —_ w Qsp - -- - -- - - - — - —� w Qsp ------ _� — _____```--- =----- - - - - - -- ------ —_ -- - -_ - -- _ \ -40 ___— - — - -� __— - -_ - - -- — -00 EXPLANATION Qal Alluviums N oteS: Geologic Contact, 1. All locations area mximate. PP Q ter led Where Unknown 2. Bedding Qspis the 0 40 80 120 Approximate Graphic Scale of Man Made Fill 5 been formiaionsgecardhas beendrawntoillustrate theformationsge ding structural nto ill nature (i.e. gentle (olds, warping cross Sending and minor Strike and Dip of Bed faWt offsets. Horizontal: 1 Inch Equals 80 Fee[ R ol Colluvium,Slopewash Deposits I S LI Groundwater Table IQ —1m] Marine Terrace Deposits nn San Pedro Formation pr tJ!'L�.s V T PLATE GEOLOGIC CROSS SECTION 12 -12' GEOTECHNICAL.INC. Project Name: Project No: Date: 8.12 1 Newport Banning Ranch 06- 163 -00 July 2011 EXPLANATION me :: Qal Alluvium L Q xeriec C here , 1. Bedcliatioman in Qsp o xi mate. 0 xi hi 60 Q ueried Where Unknown Z. been dranto Ill is the brdticns Wher and has Approximate Graphic Scale been drawn en Illustrate the bons general cd Mrral Horizontal: 1 Inch Equals 40 Feet nature (i.e. grrtle (olds, wargng cross beddingand minor of Man Made Fill F-1 Strike and Dip of Bed fault offsets. Q cnl ColluviumKlopewash Groundwater Table F Deposits El Qtm Marine Terrace Deposits IF � PLATE GEOLOGIC CROSS SECTION 13 -13' 4w San Pedro Formation GEOTECHNICAL, INC. Project Name: Project No: Date: 8.13 Newport Banning Ranch 1 06- 163 -00 July 2011 13 13' (West) Property Line (East) 120 120 Proposed Existing Newport Banning "California Seabreeze" Ranch Development j Development Hilfiker Retaining W all E > (Earth Reinforced with W elded W ire Mesh Connected to Concrete Facing Panels) so 80 Existing of Ground Surface GB-7 t-u ou (Was d z _ _ zo z o 40 __ -___- _ Qco l — -__'-- of z — _ -- '-- --- -- '- -- - -'--- --- ---- -'------ -- -- = - - - - -- - _, - -- -- - - - - -- uu w > Lu w Qsp ( ?) Qsp (?) (M5L) 0 - - --------------- — ---------------------------------------------------------T----------------------- — 0 IMSLJ -40 -40 EXPLANATION me :: Qal Alluvium L Q xeriec C here , 1. Bedcliatioman in Qsp o xi mate. 0 xi hi 60 Q ueried Where Unknown Z. been dranto Ill is the brdticns Wher and has Approximate Graphic Scale been drawn en Illustrate the bons general cd Mrral Horizontal: 1 Inch Equals 40 Feet nature (i.e. grrtle (olds, wargng cross beddingand minor of Man Made Fill F-1 Strike and Dip of Bed fault offsets. Q cnl ColluviumKlopewash Groundwater Table F Deposits El Qtm Marine Terrace Deposits IF � PLATE GEOLOGIC CROSS SECTION 13 -13' 4w San Pedro Formation GEOTECHNICAL, INC. Project Name: Project No: Date: 8.13 Newport Banning Ranch 1 06- 163 -00 July 2011 14 14' ( West) (East) Property Line Proposed Existing Newport Banning Existing Ground Surface Ranch Development "California Seahreeze" Development ao so Hil Retaining Wall (Earth Reinforced with Welded W ire Mesh Connected to Concrete Facing Panels) 60 of _ _ _ ,___ __ p F w _ _ _ _ w _ _ _. _. LL Z _ __ _ ___ -_ _ _ -- _ Z Z - - 0 40 __ -- — — — — — — — 40 o ti ----------------------------- - -_ —_- - _ Qsp —— __ - -_ F -------------------------- IMSQ o 0(MSD EXPLANATION Qal AIIuNUm �o Notes: GeolOgc Contact, �, All locmio� area oximate. Queried Where Unknown 3. Bedding stnown Qs in Qsp is lar�tydtions 0 20 40 60 Approximate Graphic Scale of Man Made Fill a drawn to enralstr been drawn to illustrate :he int, on., gmral and! minor azure set yrrcle folds, warpn9 cross bedding and mirror Strike and Dip of Bed fault offsets. Horizontal: 1 Inch Equals 40 Feet Q col Colluhum/Slopewash Deposits a Groundwater Table IQ —t-1 rd sp Marine Terrace Deposits San Pedro Formation MU GEOLOGIC CROSS SECTION 14 -14' PLATE GEOTECHNICAL,INC. Project Name: Project No: Date: 8.14 Newport Banning Ranch 1 06- 163 -00 July 2011 S N 105M W N IWW N 95M 0 i 1 N e50o zQ G I z YA N8000 f'= N ]500 N ]000 NOW N 6000 N 5500 N 5000 N 4500 6 ` 1 •C -a, I 1 EXPLANATION [12T Strike and Dip of Beds Horizontal Bedding z.... Geologic Contact, Approximately Located, Dotted W here Concealed and Dashed Where Uncertain Continuous, Unbroken Pre - Holocene Age Deposits Inactive Fault (Black), Showing Strike and Dip ' Fault That Could Not Be Proved Inactive (Red), y]5 Showing Strike and Dip Paleo - Channel in Qsp Formation Deposits Landslide, Showing Movement Direction L n Fault Setback Zone E3 8 A a ca �o wM ti 19th STREET 1 _ _� T -to - a C � I � � � • _�___ // I I - � ,' � �., � 11.1 1 C DI_ - -•C D-- r i o �C7D pT Li CPT -8 l I \ O fl \ CPT ] n 18th STREET . TC 2 f' IV l • � CPT AA ♦Ile.. 1 67 _ : I✓ "� ?___ CPT 397 \\ / \ �` J (I Il IJ Qai `\ ��' \� _ ,/ L °` Newport Mesa - North Segment Faults G0 -3 ' / \ l I] , - (iC PT -18 • ' 3 GCPT.19I / a -3 ` (See Plate 10.1 for Enlargement) -- ycPr _, v Il GC T 16 GOT IGCP • - ♦ 17th STREET GCPT1 I /� vv0` i CPT- -97A �� / 1 I /� Y o6-97 , - ` x •• � PT- �/ 1 C, V < N_S. - ♦ mil n ------ TN I yI Q 0 O N W est Mesa Faults Qom a ii 16th STREET -- Newport Mesa a �- T I Abn I- I / a I IPe n I � :✓ Q �•� /' I ill /� i � cif ,G' -v i V 11 / I t• _� /. 1 � \ 1 I _ _ l `1Q` i \V A 0VA Pf �' r o Q SP ♦° r GE / 0 k �6 ®A tl 0sr; N 8000 N ]500 K ]000 N 6500 egment Faults to 10.2 for Enlargement) PRODUCTION PLACE yJ STREET CPT -10, CPT -a -97 Leighton & Associates C PT Sounding (1997) B-1 97 Leighton & Associates Hollow Stem Auger Boring (1997) GCPT -1 Goffman, McCormick & Urban, Inc., • CPT Sounding (1998) GB -1 Goffman, McCormick & Urban, Inc., ♦ Bucket Auger Boring (1998) B -7 Pacific Soils Engineering Bucket Auger Boring (1993) HB -2 Pacific Soils Engineering Hollow Stem ♦ Auger Boring (11993) C-BI W oodward C lyde C onsultants C PT A Sounding(1985) B -B 1 W oodward C lyde C onsultants H ollow ♦ Stem Auger Boring (1985) TR- 9 Fault Trench, by Goffman, McCormick & oo' Urban, Inc., This Study, Showing Station "00" I [ Fault Trench by Earth Technology (1986) C -3 Fault Trench by Converse Consultants (1994) T -3a Fault Trench By EC I, Inc., for Leighton & Associates, Inc. (1997) TP -6 Test Pits by Goffman, McCormick & *�A Urban, Inc. (1998) Groundwater Monitoring Well Installed ♦ by G eoSyntec (1994) Hilfiker Wall Geologic Cross Section Line N 4500 N 9000 N 3500 N 3000 N ss0° 0 400 800 1200 Approximate Graphic Scale: One Inch Equals 400 Feet Contour Interval: 2 feet N otes: 1. All Locations are Approximate. 2. The Base Map was Obtained from Fuscoe Engineering N orth LA J I I , - Qo , q - N�V' f 1 , , N � \ J 17� 00 + V v T J-97 10 _ , _ - - - �_, ,� + J s -5 -� _1 ; I ,/ �, — �� `, tt 00N,\ -i �' �' +, `\ ; T R \ + , , -10 ; 0 FYI - -, A- ' `. t( } J -- ttt 245 \° T R,I - - IN 24 N�5 2 � C O o IC "P T �,vv� �� v,v,) of w w��� Q ���'� IN Al 00 ;\ \I � 51 � I vvx. � �i v a I _ ,- ' ;� of ` ) +TR \' - s �,,; -11 T _13 OZ leoCnnel'., 82`x, I \ \ (�vv ivv �,� ya '`v IN I, IN IN, CPT ' i 5� �, v ',,:. L �� -13 ' {' v al �� .,v �'�, `' 14b 35 ,570 •� V I , B_ - -� T R 7 I L• Q 1�� 0 1 I �� %`, 200 - - "� -- X T R 6 INN ; \ X, Q.0 40' T R -6a `00 T R -6b �o 50,; 2: \� TP -6c Q t m _ T -1i3b �� -v.0 -4o v IN y _-- `T R -3 '90 ` X a f X M x I / _8 ; �0'-- x; rC S i 1;5 ! = _ $, T R -3a T -1 - B a _ � 85 _ �� X _ ... ;' T R 21 v T 80 --- - - - - -- —;' 00 - - - -� 3 5 `\ \, \ - � -� I T R -2 1--1'% - - - -- ; _ I ' - -- �' a f '1 V� _ \ ' / VIV 7 -;- — _ -- ^o -- \, - IN oo C01 \ ----------- / �------ -__- ,4 - EXPLANATION CPT [12T Strike and Dip of Beds CPT�4�97 Leighton & Associates C PT Sounding (1997) T -a`is Fault Trench by Earth Technology (1986) B-1-97 97 ® Horizontal Bedding Leighton & Associates Hollow Stem Auger CT -3 0 100 200 300 Fault Trench by Converse Consultants (1994) Boring (1997) ♦ Approximate Graphic Scale: Geologic Contact, Approximately Located, �... � Pp Y GCPT -1 Dotted W here Concealed and Dashed ♦ Where Uncertain O ne Inch Equals 100 Feet Goffman, McCormick &Urban, Inc., T -3a Fault Trench By ECI, Inc., for Leighton & CPT Sounding (1998) ♦ Associates, Inc. (1997) Contour Interval: 2 feet LContinuous, Unbroken Pre - Holocene GB -1 Age Deposits ♦ Notes: Goffman, McCormick & Urban, Inc., TP -6 Test Pits by Goffman, McCormick & 1. All Locations are Approximate. Bucket Auger Boring (1998) �v Urban, Inc. (1998) 2. The Base Map was Obtained from Fuscoe Engineering ��s Inactive Fault (Black), Showing Strike and Dip B -7 Pacific Soils Engineering Bucket Auger Groundwater Monitoring Well Installed Boring (1993) ♦ by G eoSyntec (1994) L Fault That Could Not Be Proved Inactive (Red), HB -z Showing Strike and Dip ♦ Pacific Soils Engineering Hollow Stem Hilfker W all AugerBoring(1993) Paleo - Channel in Qsp Formation Deposits C-B' f N orth W oodward Clyde Consultants CPT Geologic Cross Section Line Sounding(1985) L B -B' L Landslide, Showing Movement Direction ♦ W oodward C I de C onsultants H ollow Stem Au r Borin (1985) PLATE Auger y g FAULT SETBACK ZONE N E L Fault Setback Zone T B e oo' Fault Trench, by Goffman, McCormick & NEWPORT MESA NORTH SEGMENT U rban, Inc., This Study, Showing Station "00" GEOTECHNICAL, INC. Project Name: Project No: Date: 9.1 Newport Banning Ranch 06- 163 -00 July 2011 ' I o , I • V < <� 16t '�T1 � - - -- - 110 _ - - - - -- � S7 \ , 0 B -3 -__ 11 87 T R - O a -10 55 v -- - - F oo` R -- 5 00 g + - -- - -- �,'.90 �,,� + v _ -� 1 T R - 5� - Q t m �� - - �' :..; 1 00 ��• __ -� ,- -- - - - - -- - -- ; \, T R - 2 3 - �- o i� , \ •• 100 '� - 9 -100_ � .� -- -- % T P� , h 17 i e . � � O 88 '_ — — ✓ �� T R-1 7 r: l 8g q I T - 7 b „ 1 so� c- 7 0 , z! � + + ;85 8A, tc + 70 �v EXPLANATION c P [12T Strike and Dip of Beds cPT Leighton & Associates C PT Sounding (1997) r -`is Fault Trench by Earth Technology (1986) BB1 67 ® Horizontal Bedding L Leighton & Associates Hollow Stem Auger CT -3 0 100 200 300 Fault Trench by Converse Consultants (1994) Boring(1997) Approximate Graphic Scale: Geologic Contact, Approximately Located, �... � Pp Y GcPT -, Dotted Where Concealed and Dashed ♦ Where Uncertain O ne Inch Equals 100 Feet Goffman, McCormick &Urban, Inc., T -3a Fault Trench By ECI, Inc., for Leighton & CPT Sounding (1998) ♦ Associates, Inc. (1997) Contour Interval: 2 feet LContinuous, Unbroken Pre - Holocene GB -1 Age Deposits ♦ Notes: Goffman, McCormick & Urban, Inc., TP -6 Test Pits by Goffman, McCormick & 1. All Locations are Approximate. Bucket Auger Boring (1998) �v Urban, Inc. (1998) 2. The Base Map was Obtained from Fuscoe Engineering ��s Inactive Fault (Black), Showing Strike and Dip B -7 Pacific Soils Engineering Bucket Auger Groundwater Monitoring Well Installed Boring (1993) ♦ by G eoSyntec (1994) L Fault That Could Not Be Proved Inactive (Red), HB -2 Showing Strike and Dip ♦ Pacific Soils Engineering Hollow Stem Hilfker W all Auger Boring (1993) Paleo - Channel in Qsp Formation Deposits C -B1 f N orth W oodward Clyde Consultants CPT Geologic Cross Section Line Sounding(1985) B -e 1 L Landslide, Showing Movement Direction ♦ W oodward C I de C onsultants H ollow Stem Au r Boring (985) PLATE Auger y g FAULT SETBACK ZONE N E L Fault Setback Zone TB- e oo' Fault Trench, by Goffman, McCormick & NEWPORT MESA SOUTH SEGMENT U rban, Inc., This Study, Showing Station "00” GEOTECHNICAL, INC. Project Name: Project No: Date: 9.2 Newport Banning Ranch 06- 163 -00 July 2011 "Benching Shall Be Required When Natural Slopes are Equal to or Exceed 6:1 or When Recommended Fill Slope –,, by the Geotechnical Engineer/Geologist `v Property Line V Setback Natural I Natural Ground o Per Grading ^+ Code LL� ' 2 -Feet 4- Feet(Typical) Minimum %, Keyway Tl (TypicaypicaQ Competent Earth Remove Unsuitable Material i et •,10 Grade for She Flow or Provide Paved Drain ••• , Written Permission Must Be Obtained for -Foot Minimum Any Grading on Adjacent Property (Keyway Inclined 2% Into Slope) BENCHED FILL OVER NATURAL Property ALTERNATE 2 Line Setback Par Grading Code Fill Slope Compacted Back611 j,••••'•• Finish Fill Slope Remove Unsuitable Material Keyway Natural Ground 4-Feet (Typical) Com P� M .___.. 2 -Feet // /.. Earth Minimum to- i-� —^ / (FYpic'ao Cut Slope to be Constructed Prior to -. Keyway Placement of Fill Foot Minimum or Stability Equivalent Per Soils Engineer Recommendations ( Keyvay Inclined 2% Into Slope) BENCHED FILL OVER CUT TYPICAL BENCHING PLATE AND KEYWAY 10 Project Name: Project No: Date: GEOTECHNICAL, INC. Newport Banning Ranch 1 06- 163 -00 July 2011 15 Feet Minimum Planned Grade ... .. - - 4 -Inch Diameter Non-Perforated Outlet Pipe (See Typical Backdrain Type Subdrain) 15 Feet Minimum N otes: 1. All Buttress or Stabilization Dimensions to be Determined by Geotechnical Engineer /Geologist. 2. Keyway W idth and Depth to be per Recommendations of Soils Engineer and Geologist 3. Natural Solpe Surface Removed to be Reconstructed as a Compacted Fill Slope. 4. Any 'Tailing" Deposited on the N atural Slope Surface Downhill from the Keyway are to be Removed. 5. All Dimensions and Locations are Approximate. 6. Drawingis not to Scale. TYPICAL BUTTRESS OR PLATE ■V�ll�� ■VI STABILIZATION FILL GEOTECHNICAL, INC. Project Name: Project No: Date: 1 1 Newport Banning Ranch 1 06- 163 -00 July 2011 SCENARIO 1 --------------------- - -- m m //l j�TljrTj7T /' Fwt Maxmum rrTJrrT Feu Bedrock or / Trrjjjj jr itae ls i Su bl M ta TJ /rl Process, Moisture Condition and Compact a er Upper 12 Inches if Necessary (As Determined by Soils Engineer Based on Actual Field Conditions) SCENARIO 2 ---------------- - - - - -- - - - - -- ---------------------- -- m m j % %%% Bedrock or O verexcavate Lot to Provide a Minimum rT %jrTr %%l Suitable Materials Fill Thickness of at LeastS Feet Across the Entire Lot SCENARIO 3 M m TrrTI /r� _----------- _ .i1:5 Feer. `Fi(I 2%Slope —� _ _ _ r Over excavate Transition to a Depth of H/3 Suitable M ateri srTrrj��jrr,JjT�IrTJj (5 Feet Minimum, 10 Feet Maximum) W'Qw TYPICAL DETAIL OVER - EXCAVATION OF TRANSITION PLATE LOTS GEOTECHNICAL.INC. 12 Project Name: Project No: Date: N ewport Banning Ranch 06- 163 -00 July 2011 10 Feet Minimum .15 Feet Minimum < 15 Feet Minimum 3 Feet Minimum Typical Row of Oversize Rock Fragments N otes: 1. All Dimensions and Locations are Approximate. 0 5 10 15 2. Drawing is not to scale. Approximate Graphic Scale: 1 Inch Equals 70 Feet RECOMMENDED PLACEMENT METHOD PLATE FOR OVERSIZE ROCK OR CONCRETE FrJCMU 13 GEOTECHNICAL, INC. Project Name: Project No: Date: Newport Banning Ranch 1 06- 163 -00 July2011 9 C ubic Feet of Filter Material Per Lineal Foot of Pipe (See N ote 1) G rade of T r ibutary D rainage C ourses After Removal of Low - Density Alluvium 3 Feet 6- Inches N. 3 Feet 4 or 6 -Inch Perforated Pipe (Perforations Towards Bottom) PIPE TO MEET COUNTY OF ORANGE REQUIREMENTS ABS PIPE: ASTM D2751, SDR 35 OR ASTM D1527, Schedule 40 PVC PIPE: ASTM D3034, SDR 35 or ASTM D1785, Schedule 40 N otes: 1. Filter Material to Conform to Gradation Specifications per 0 EMA Standard Plan No. 1323 or an Approved Equal Consisting of Filter Fabric and Crushed Rock. 2. See Typical Canyon Bottom Subdrain Detail for Pipe Specification. 3. All Dimensions and Locations are Approximate. 4. Drawing is not to Scale. p PLATE (;Nw TYPICAL CANYON BOTTOM DETAIL 14 GEOTECHNICAL, INC. Project Name: Project No: Date: Newport Banning Ranch 06- 163 -00 July 2011 I Temporary Fill Surface Plan G rade y 2 %Minimum _.. F " , _. 4 -Inch Diameter' N on- Perforated 0 utlet Pipe 4 Cubic Feet of Filter Material Per 1 -Foot Lineal Foot of Pipe _ Minimum C over (See Note 1) Backfill W ith Select Native Soil Free of Large Rocks 1Foot 4 -Inch Non - Perforated Minimum 6- Inches of Filter Outlet Pipe Material Surrounding 4-Inch Perforated Plastic Pipe (Perforations toward Bottom) OUTLET PIPE COLLECTOR SYSTEM No Scale No Scale N otes: 1. Filter Material to Conform to Gradation Specifications per 0 EMA Standard Plan No. 1323 or an Approved Equal Consisting of Filter Fabric and Crushed Rock. 2. See Typical Canyon Bottom Subdrain Detail for Pipe Specification. 3. All Dimensions and Locations are Approximate. 4. Drawing is not to Scale. (MU TYPICAL BACKDRAIN TYPE SUBDRAIN PLATE GEOTECHNICAL.INC. Project Name: Project No: Date: 15 1 Newport Banning Ranch 06- 163 -00 July 2011 Plan Grade 8 -Inch Diameter Riser Ground Surface After Minimum 12R3A- F. ��• ' i Removal of Low - Density Soil Filter Material ^F • - ... ------- - --` -- - -- -7, —_ —__ Canyon Bottom Subdrain W ith ` - -' -� gft.3/L.F. Filter Material N otes; 1. Filter Material to Conform to Gradation Specifications per 0 EMA Standard Plan No. 1323 or an Approved Equal Consisting of Filter Fabric and Crushed Rock. 2. See Tygcal Canyon Bottom Subdrain Detail for Pipe Specification. 3. All Dimensions and Locations are Approximate. 4. Drawing is not to Scale. OluTYPICAL DEW ATERING SUMP PLATE 16 GEOTECHNICAL.INC. Project Name: Project No: Date: 1 of c 1 Newport Banning Ranch 06- 163 -00 July 2011