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HomeMy WebLinkAbout1196 Chisolm Trail Dr E ' +�EOT��vx�A��Y�w s �y'Ep �1�TH �C���1Cif�� LEIGHT(3I��iU.A���CI�TES DIAaMQN�BA� .�.�1.� FC3It p�� V�4�1�IIF.���E��t�G Cll�til� CIT��F TlIAM�I�1I)B� , T��PARTI�iENT C3F EN�IN�E�F��i�C1 B1C: ���� �AT'�» '�`��'t�l ��� PrvjectNa ��10�6�-�88 Track(s) �7�73 Lat 1� ��.t� ��`c��7 �El(?9 P�ren�Tract Lcacatiaz�fawn�r Mr, �tarinder K�maz Syt��d�ess 11�f ��ush�Im Tra�l Drive Geolc��t� Develo�r �ails En�ineer Get�Env�rca�a �ng�rieerfArch l��nal �' Inr�a.n and P,ssac R�VIEW C�F: Gea ��.�iran Inc , 24{��c, Respt�� t� So�ls Enginee�rt� Fr.evieu� �h�et d�ted Mazch 1£:, 20t�} h� the Crt� �af l�ir�mcand ��r, F�nal �eote��i�al Report Prep�e� �y Cre� �nviro�, dated ����r 17, 2�, L�� 13, Tract 3'7873, 119� ��tasholm"�'�z�.�rt�e,D�arn�n�Ba�r, Cal�fc�rtu�, Pr�ject Nc� t3'7-�8bG-2, dated I��rch ��, �0€}� A�'.TION: � F1anfR,��rt�s geotechn�c�,t��apparaveci Fl�z�/Repc�rt nc��G�pgz�r�ved fc�r reas�r�s below Plaaaf�e�rt���e�techn�cal��apprp��d �ubmit Pian�Repart f�r rech�ck. Incl�de a subject t�a conciitic�ns belt��v. �vpy ofthis rev�e�v REVIE�Y C�f�ENTS: The �eotechna� �onsultant dic� r��t downh�l� �og the �c�r�.r�gs as we previ��sly und�r�tas�ci. �owever, � �di�t�� that t�� �t��ngs were ��gg�d �rorn �e s�ar#'ace a�d Q���x�v��on of the b�ring cuttu�gs �c�ng with �he pr�v�c�u�l�r de���c�ped d�pth es�i�n�tes w��e �uffic�ent ta ��,Ic�a�� the degth c�f �ae shc��.r zt�ne durmg constn���tan R�vaewed by _ � Uate,_, Ma.rch 2�,�(�� on D �Ier��,er , 'T� Re��ewed by /� ]��te Marc��7 �00� P��l�p.�1, Bt�c�ar�lli,G��',,,� 17�� . .,� ��I�����t ��a � Y .fiM.I�0.I�V T���� PR��I��€TLT�R���4'ED��'ClFiTS �`�R'�HI�DE'V�LOFMENT �c�nald J Inman & Assac�ates, 2QA4�, Respan.se ta the �xty o�'T]ramond Bar Geotechnu�c� �eview�b�t c��Lc�t 13, 119fi Chishalm Traul Dzav�,Tr�,ct Nn 37873 zn tl�e Crty ofI3�arnond Bara dat�d t�ctt�l�r�,2��} T�anald ]. Lnman& Assaci�,tes, 2Q(14b, Respvn5e ta tkt� �rty of�rfunond Bar G�techzu� R�vi�w�h��t�f Lt�t 13, 1196 Chisholm Trail Dz�ve,Tract Np 37$�'3 zn t�e City c�f T3iam€�nd B�'J ciated Dec�rr��r 16,2�}f}� I�I13�t�.T Illiil�il] & ASSACL��eS,2(�5, 11�f Chicsh�alm Txail I7�rive,l7rarr�€�nd BarY�t�d��aiar�24,2�� Uonald Tnman and As�ciates, 2QU�, £�n�ite ��uu�� ar�d �ra,i�e fcar Lc�t 13� Tract 37833, Plan �ted though Revrsion 3,December 27,�t}Ll�,si��!J�an�8,�{}(37. �onald I.nman and A��iates, ��}{}7a, Ft�ur�tiatz�z� �'�ans a.n� �3Jetai�s ft�r th� Sin�le Fam�ly R�xdence 1196 Chisc�lm Tra�l I�riv�,�?i�znt�azd B�ar,C�lz�t�rn��,Revised 11��y�,20�7 I�►t►nald�au and As�c�c�ates,2{}t�7b, �l���h��t�lrr�Tr��,le�er dat�d Ju�� 36,2[}0? E��, 20(�3a, ��an�e c�f�n�ult.�ztt an�, R�spc�rxse to Ctty t�f Ua�ampnd ��r' Llep�rkment of Engzneez�ic�g, Review ���ts 1���a, ���8 �d I�Ofi� �hr.sc�lm Tr�i1, �ity� vf T���unand $ar, �aliforrua, EGL Project No 03-AA- t�I2F.�a�,c�tet�Apn121,2443 �C"aL, ��3�3�, Res��se to City of Diarnond Bar T�epartrnent v�'Engin��ruxg, Re�view Sheets 119fi, 1198 �.ta�i l2[��# �hi�t�Im Tr�il, �rty of D�amond �ar, ��liforr�ia, ��L Project l�Ia 03-AA-012EGR, dated A�gust$, �00�,as r�cerved Septembear ] 1, �UO3 �CaI�, ��}il4a, �oils Report Update, Proposed Single-Fam�ly Re��dence, L,tat 13y ��7� ��ISIICTSIli TL£�1� �Y�ij Tr�t No. 37873, Diamond Bar, Catifornia,E�L�ra��ct Nc� D4-AA-032U,t�atect September 3,Zt�4. E�L, 2004b� F{espvnse to the �ity of Diamond �ar, ��ot�chruc�t Rev€ew 5����, Lcat �3, �I3� C�ush�lm Tra�l T�nve, Tra.ct Na. 378?3, Diamond ��ur, �al�foz�ia, ��L F'rn�e�t hTt� {}�-�4�32LTF�C, c�aate�I�cember 8, 2qq�. �eo En�viran In�., 24Q7a, �e�techruc� Consul.tarat c�f R�cvr€i, I.�a� I�, '�`r�.ct 37873, 119� �hise►lm Trail Drive, �i�nand �ar, C�lifornia, Pro,��t N€� (�?-28���,�iate�M�y l,20{�7. �ecs �nviran Ine,3 2�0�'b, G�cat�hr�� G�nst�Itant c�f R��, L�t 13, Tract 378'7�, 119�i Chisolm TraYl Drive, Lliamond B�r, CaiYfi�rnia,Pr��ect�Ia �}7-285��,t�ated Jtu��27,2Ut}'� G�a �nvuvr� In�,, 2{�47�, Res�nse, Sc�ils Engine�nng R�v��w Sheet dated August 13� 2UU7 by the City of T)i�mt��t� ��r, "C.a�ssc>n �xcavation� 4b�rvations, Lot 13, Tract 37873, 119d Chisholm Trail I)rive, T���ms��d Bar,�a���`t�nua,Prc�ject I�3o 07-28��,dated August 20, �0�}7. Ge� �nvirt�n I�.� ,2�9a,F�nn� �e�te�hnical R�port, Lc�t 13, Tract �78'��, 11�� Chish��tn T�1�ritve,��amor�d ���a�i�'arr�a, Prc�,ect No. 07-28��-F dated F�bnaary 17, 20(?�. � ��I��I��CI - �.�.�.�. .��� _,�-��.�s:.:�:::" � . 2910164-188 Geo Environ Inc , 2009b, Letter of Addendum, 111 S#atement per County of Los Angeles, Lot 13, Tract 37873, 119b Chisholm Tra�l Dnve, Diamond Bar, California, Project No. 07-286G-F, dated March 12, 2Q09. Hu Associates, inc , 2005, Response to City of Diamond Baz Geotechrucal Re�iew Sheet, Lot 13, Tract 37873, 119b Chisolm Trail, Diamond Bar, Califorma, Project HA-5482-7, dated December 28, 2005. Hu Associates, Inc , 2006, Response to City of Dtamond Baz Geotechrucal Review Sheet, Lot 13, Tract 37873, 119b Chisolm Trail, Diamond Baz, California,Pro�ect HA-5482-7, dated February 20, 2006. Keith Ehl,ert, 2000, Report of Geologic and Geotechnical Engineering In�est�gation, Lots 12, 13, 14, and 15 of Tract 37873, Undeveloped Property Westerly of the Intersection of Rio Lobos and Chisolm Trail, City of Diamond Baz, Project No. 4172-00, dated May 29, 2000. � Leighton - �:.�__�,,,�„��_.�__.�._. -��.a��:..,��, - _ x � F�t : �CENV I F�i P[� NCt. : 71�6323191. �r. 24 �9 l i:5�tt�F1 P2 ��� I � ��M� GEO'���HICRLANLi�h1Y'tRt'��lMENTAL�i�lCft�EERING CAl+�SEJE.TA�"t'S,fN� °t�4t3 N vs�S�re�se.Scc 1t1�, Anah�iarw.�a �'z8(�7 • �7t�9 s��3t�3P.i • r�a�€(71�4�6��3w9� � �� �� ����'�� ����� 6€"'���,: 1 �-�'�%� � �' ���` �Tc��Nr� t}"7-�$6t�".�r.�� ����li��'tC ����� �a���� � . � i��rc�.�4,2UQ3 r�'��f,����l�r�' �VIr.I`�T�ar�t�der�umar �.��35 Fl�tl�ush�ven�e �'�i'�rw�lls., ��9ti�5i� �'��je�et: R�s�avns� �il� �n�ne�rl�,� Revi�w ��eet d�.��d ri��,rc� 16, �t}� by �h� �:ity�f 13��mvnd��r,`��inud+��t�ch�c�'�u1R�,�t�t,Pr�r�r�b�t,i�a En�i�n,d��'February �7, ��1�19, �r�t '13, Tr��t 3?$7'3, �,�95 �his�v��,m Tra�.i I)�-�ive, ��am�r�+� Bnr, ��lif�rn.iu��� Ret,�re�ces: �.��u As�ciat��,In.c, F���uaryP�{�� �Ot��,`•R.e�pt�r���eotec�ti�ical Re�r�ew �hc� r�te�3anu�zy 28,��1��, L�a� ��, �`ra���7873, 1��6��is�ca�m Xrai1�xi��,�i��tnan� �iar, ��."AA�r�av�d�n �Vt�.r�h �, 2{313C>. Z}��u Assc�ia�s, in�. Ue��r�p,b�r 2�, �Q�}5,�dc���dum����par��� �ecat��hn�c�l k�v�ew ���ct da��i�amt�r��8, 20��, Lot I3, T�����'7$73, ���fi C�Zi��al,m'�'r��l �rive,T3��.rr��nd�a�,��. �} E�zvi,roz�rr����t� G�c�t�ehnic�.� La'�c�ratc�r�� �nc.,Ji���9, �i?��, R�:Spc��a�e to�i��f I�i��o��d�ax, Re�i��uv�hc�tsx �.19ba ��98 �enc� ��OQ��1��Qtm�'�rail�I�i�mon,�.��r, �a, �} �e��kr"4�, �����, �t29��t?, T�.epvrt�f�eal��ic and G�z��ehnf�I inv���.g�.tic�z�,Lot ��, ��, 14�nd �5 c�#`Tr�ct 37873,�'ncfev��€���ci�rcr�rty 1�t�'�si,cr�y�►f't�te �n�r.�et�c��of�iv �,obos and G�ai�halrn T`��1, D��and B�r, �a, 5}D��.BId�. I�1�xt&.t�SSt?Gt�S,�.�.,�r�ttT�t�C�t�r� Plan Bc T��t����, 1d��00�,RG�rtscd�I�.Juike ��, 2{?t�°7, l l�t� G"�ais�c�lr�a'�'�il l�rivcg l�iamond�ar,��. �eu�l�men: ��th r���d t� ���s a�.� ��olo��or�nmer�ts, t�e f€�llc��rir�g r��zxscs �pr���t�d �r yc�w �vie�v', A�c�p� af��e review she��s att�ch��i for�c�uar ucmv�nie�ce. r � FF�C�`'! : GE�JIi�t �€ N0. : �1��231'�1 hlar. �A � �,1:55F�1*t F3 ts[�` Na F{unnar,�at�t3, �`ract 37BT3, 1�96 Chish��r��'rai! Ilr�ver, Dl���r�d�ar F���#�:2 ��b No 07•�86� Item��. � R�s�sr�ns+e: Tk��depth����e5#���te��S peC�h�prsv��us geat�c�ical reportS(l�.cf� 1,�)�pr�ace��y��, �.ssoc�at�� �.�i the faund�t��.���ans anc�c�et�al �ef 5),ac�e�Zt�cl by our firsrrn At tt�e t�r�x� �fdr��lir�g, one o�'t�ur��ld engr.�eer s�.ppl�arnc�ated.�I�sse d�ta by obse�vat�on v�'���.nll�n�canc3it���. �'hc dri11 c�tti�.�s �en�ra[�� ��rn�te caassan����ve,tKtrn��vc�re�v��cr�kerl l�y�ur�c1d �er�r��ne�. $2�s��1 �p�n t�e increas�d m��sture chan�e����€�r c��n��, �r��ence of c1a�y ma��nals,etc.,�z�t co��cides cic�s�iy t�the e�t���d d�pt��af'sY���.r��r��. I-�o�errcr,��a�dnwn F�c�i��.r�s�a�c�i�zas w�r�c�t rnar��l�y€a�ar fi��d �ersanne� dua to t�te €��pth c�f th�c�t.ss�n� anc� 5a.�'�t`� ��s�e� ��t conc�usivr�, it �s our c�p'r.nicm that all �aissc��s �r�re �rn�aasc�ic�tlac r�uir�� d�ath belo�v th� ��ear �on�� s�zita�I� #'or th�i�#�:�.de�d use and su�p�rt caf tl�e �tru��.tr�. �'c a�pre���te this �pp�rtutx�ty to be uf s��rv���. if you�a�r��ny quest�t�n�anc�:rrni��; aur �d�n$s,pl�e c�Il �t your c�°a.veuicn�c�< Resp��t�ta��y subr�i�er�, ���F�� �n E�vrrari Et��. ?��nau�t�����,�a�. �����<`' � � � t+� a� �� � � � �� �' �� ��tb ud '���.�� ��,ik��g�ri �S d t!�'ro�ect�r�gir�eer �ivil�r�g���,R�E 43332 � � r �.0 Plzi,l �u�har��li,��G, Lei�#r�r��,,�„�sociat�,Irac. Mar��4,z�� Gea�r�virort�ng. Cansu{tancs.��c ��� I��� ���� �E������..�Q���������E.�N��������������.��►��.��� 124f}N �an Bure�5t 5[e 101, �na�se�rr�<Ca 9�StM7 � {714►C3�-3I94 * Fax�7I4)6;�2-31'�t �����. �r��'����$���A�. �'�����, �.�'�'��, '���''�����3, ���f�CNI���LM'7'RA1L t��tt�€ t�1AlV���V�L��4R, CAt.��'C�R�ftA February 9l, 20U9 Jo�b Na D�'-2�6g-f �RR�. �tAP�1t�,�E`i��C��9�R �3�3��LA'T��l�'NAV�IV�If NC��INALt�, �A 9�6�� � �� � ���i t�������► �1� ��� ��� ��'� GE[}7�CHhtIC.�tt.AND ENVIR�NMEhrTAL ENGINEER9NG CQNSULTAt�TS,It�C 1Z44 iV Van Buee�St 5te �{}�, An��►e�n�, Ca �28C}7 • �7�4)632-�19C! • �ax(714j�3Z-319� �`e�ru�ry �7, 2(I�9 Jc�b I�Is� �7-28��-F Mr.�arinder Kumar 13535 Ftathush Arrenue Narwalk, Ca 906�0 Sub�ect: Final Geotechnica�Re�►ort,L+at 13,Tract 37$73, 1196 Chisholm Trail Drive,Diam��nd B�r, Califurnia Ref�rences: 1) l�u Assoc�at�s, Inc, February 2�, 2C�06, "R�sponse Geotechntcal Rev�ew SY�eet dated January 28, 2005, Lot 13, Tract 37873, 119� Chisl��lm 'I'ra�l Dr�ve, D�amond Bar, Ca " Appro�ed in Marcti 8, 200fi 2) Hu Assoc�ates, Ia�c Dec�ember 28, �OQS, Addendunl Cc� E�esponse Geoteehnrcal Rev�ev+� Sheet dated January �8, 200�, �,ot l�, Tract 3"7�73, 1 l�6 Ch�sholm Tra�l Drave, �iamc�nd Bar, Ca 3) Env�ror►mez�tal Geotechnzcal L�bt�ratt�ry, inc ,,�uly 9, 2003, Respanse to ctty of D�arnond �ar, Rev��ut Sh�c:ks, 119�i, 11�� �nd �20C1 C�xshc�lrn Tra�l, D�amc�n€� Bar, Ca 4) Ke�th � E���rt, SI2�/(�0, R��rart��`G�Q�c�g�c ar�d �e�rtechn�cal Invest�gat��n, Lc�� 1�, 1�, 14��c� 1� �fTr�ct 3787�,Un�eveEc�,pec�Prc�pert,��''ester�y t�ft�e�nt�rsect�on ofRtt�Lv�bca����E��,�shc�lrrt '[°ra��, I)�,aam��c� Bar, C�, 5} I7oz�a�ci .i Ir�rr�an �. A�sc�c�ate�, �'� , �'�unciat��r� P��r�& �3e�a�Is, II22It}7, R�vts�d tn ,��tn� 2�, 2�3t�'7, 119�i���s����m� Tara�� �nv�, ���.mar�d B�rg C� D�ear Mr. Kurttar: Thas report pr�sents tk�e sumrnary af abservatic�ns and test�ng serv�ces provided by th�s �rrn dur�ng ,�rading and constructi�rn oper�tians for the suba�ct syte Mr N Kumar, Lot 13,Tract 37873, 1196 Chlsholm 7rail Drive,Diamond Bar Page 2 Job No Q7-286G 3 EARTHWORK ROUGH GRADING Cut-fi11 gradmg were conducted w2thin the proposed building and slope areas A min�mum key w�dth of 15 feet w�de was constructed at the toe of the proposed slopes The keyway was overexcavated to the native competent so�ls, observed by our fie�d representative, approved for fill placement �il! soils were pZaced in lifts not exceeding 6 to 8 inches in thickness, watered as necessary, benched into the nat�ve strata and compacted to a minimum of 90% of the laboratory max�mum dens�ty Field dens�ty tests were conducted at 2- foot vert�cal �ntervals of compacted fill placement The area was overfilled and then cut back to an �nclmatton of 2 1 {horrzontal vertical) In-place dens�ry tests were performed m general accordance with Nuclear Methods ASTM D2922 and D3017 procedures at a frequency sufficient to ver�fy the moisture content and degree of compaction obtained Maxrmum dry dens�ty of the fill so�l was obtamed �n general accordance w�th ASTM D-?557 procedures See the summar}+ sheet in Append�x `A' for the description of the on-site fi I I rnater�als and the density test results CAYSSON EXCAVATYONS Total 28 ca�ssons were dr►lled w�th�n the proposed building area All ca�ssons were drilled as per the foundation plans All caissons were dn2led below the shear plane, observed by an eng�neering geologist, and approved for the intended use CONCLUSIONS Al� cut f II grading with�n the building and sYope areas , ca�sson excavations with�n proposed ' building,and the have been comp�eted in accordance with the requirernents of the soils report and the foundatton plan The completed srte in the areas as noted �s adequate for the construction and support of the proposed structure Geo Emlron Eng Consultants,Inc Mr.t� K�r�ars Lot��,Tra�t 37�7�, 4'1��Chrst��[�Tr��l Clr�ve, C]l�rr�ond Ba� P�g� 3 Job Ncs.�37-�86�.3 "�`h�s c���rtua�t�to b�t��' ser���e is�r��tly ap�rec�ated if yau have an�r qu�st�or�s ct�r��ez�nR�ig tla�s,please ca11 at yaur ca��venie���e SincerelY, G�t�E�n�irs�n En�. �ansult�nts, �n€. a�,9��sst�� ��'�c"��'f�1'��,� � � �'r► °"E ��� �" �,�,,,.� � �� � � ��m��l R�steg�� Pr��� n c�aec�En�tne�z .��'�''��,G��,�,�� ��vi1 �ng�neerg����3��2 �'��ouT��� JMIE�I�m A�t�cbrnent� 1 ��eld�}e���ty'�est�uz�n.mary � 'I'abl�WC��sson Excav�t3c�ns � Plot��an ��t�tuary'�7,2tl{39 �eo��v�ron Ert� �onsu�tants,Irt� ��"P',E"l�t?1X A �C1�'�ItStTY �`E`�7" �UM11���Y1 T�1��.,�' =�1�F F�C��4VA�'1�1'VS ��ca�n�[rtan �n�lr���r���on�ult�ant�, in� �Id- �EC� E{�VIRON DAILY FIELD REPORT GeQTYCHN�CAL 6 EN4�FCiJMENTAL BNC�NEEA[NG CQNSLI�TANTS,INC p JOB LOCATiJ CLIENT Oft O NER J08 NO ,�, /" � � �I �'I l4, r f� , i-�.I'I 1 �1 Y r% � �� r �-' ] GENERAL LOCAT�6N OF FIl.L PURPQSE OF FILL OR NATURE DF STFUCTURE TD BE SUPPORTEQ '{.L� �-`� 1'(_(,"� - G ERAL CONTRACTOR GRAQING CONTRACTOR TH � Y QF EEK � I,�.�-JC C'�-C ENG[{�lEEFV GEOLQGISTI TECHNICIAN TOTAL HflURS CFi AGE❑ tit ` .� '�1 S c�D 6c � '�'� �� � --- 1 (. WEATHER EQUIPNiENT S OPE OFWORK + ' I c-� C �.- � OG'---�C a� ��-�}"Lf�- ��.` �—, � RCE S DE F�P 10lV QF F�LL MATE IAk.B�MA IMUM DE[+1SJI�Y&MOISTUR TENT ] � � �j�' � �'��' �d1�C } �'5��,�ti -���=)�� �� ` �r` ,�y����-z�r�z ����� f' ���1'�` `c_J ��' � � 1 , . / . � TEST ELEVATION SOIL TE57 TEST DRY RELATNE TEST AEMARK NO TEST LOCATIDN lN TYPE NfOE5TU pENSITY CQMPACTIQN TYPE FEET % L951CU FT °/a e c. r �t_ .���, r�! 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'"�"� wf...-y-,. � Y l�,,, � .+' N� � � � ,..�"'t� e �>K`+� �� t1 �t'f ''� � � � Y'�� �e ,�''�" �•� � �,.r"'^.,,,.�*" `� �? � � !�}7�r .a`,. 1" � � "f'1,� . i �yy y'"' �,,. «�" �� ��S � � �� � 4� � � _,�,4 �..,yt• �. � ( ..� � �r�� �� �� `� �,, �3 t� � �� ,,,�x°� c�y#" �» >/" l �o �'`� � ♦ � �. �,..�. ...-� '� � � � j',�4� � 'e,� ''y. �y � F j,."'.'._.. ,�„> f .. t � �iR '► � ��� �1 � ;f� � �� ;� ` k '` �� �✓' �,..�.....�-^"' �„ � �°'7 � '.4 � y � w.r.r^'`� ��, -'' {ts }'��,.� � � � � 5 / lGt r^s' � � '�.� � ,� � 4 ,,.,r� y O` ":,,..,..--^._�._ � � „�. � � �'� #� � �`� � � �� � •� `�� � � ,� � :+, ,,,�' y�y� ..-""r^'"� . � f4� �^t'� ti't \'�,'`' r"` �,y''�`' � ,�,w�'' ��"` > �'� � � � 4� �''' � ~� , � � xr�tt a� � � � c]* � �..f'`'�,�''"� -� ,... � 4`^+� � � '� .,�,,..�+" � � � � � ��� � rt� �' ,�,,.. � � � � � " � . ; ��c�������� �v���v s� T�PPROV�7 �������r �n��s�►c����s,� FOR �DIAMOND �AR ��T�t'�FF I?L�4ND BAR � �OR6(5/�NGIN��RII�kG C���"T" �►EP�T�E�T C�F EN���'+�EERIN�. I���� ��: � �� ��°�� ProjectT�o 291�}164�-1�� Tract��} 37873 Lat 13 �,1ate March 16 24(.}� Far�nt Track Locationl0wn�r Mr Nar�ntier T�.u�n�r �ite Addr�ss 11 6 Chi olm Tra�l Dnve �"recrlcrgxst ��ve�caper �oils En�in��r Geo Env�ron En�neerlAr�h Dana�d� Inrri�n.and Assoc REVIEW UF: Geo Envircrn Inc., 2��9�, Lett�r of Addendt�m, 11 I ��rn�nt�aer�unty of T.os An��les, Lot 13, Tract 37873, 119f� Ch�shc�lm Trazl Dnve, ���nr�ntl��r,�al��'azn�,�,Pr�j�t Nc�. �7-286G-F,dated March 12,2009. ACT�t�N: � Pl�.e�c�rt is g��tect�i�ally appr�ved X Pl;�l"I�.�port not apparov�d for rreasans belaw �'lanl�����is g�t,ecl�nic�lly apprc�ved � ��t�mit P1an/�Report for r�check Include a subj�t tt�c�ndit��ns belo�v. capy af thts revi��►. �`.��E�����I�I�TT�: �z� c��ar �v���v sheet o� June 29, 200'� fnr 119� Chishc�im Tr�l, we a�apraved th� ge�atechxuc�l �repc�z� {�ev Egvtron,2007b� and caissaz�destgn sub�ect to several candihons„ xnclud�'t�the fcallowin�: "The c�usson desi�n is based on an expected depth �a a fault or w�ak �az�� �l�rw fhe �urFac�,and the ��sso�s aare supposed to have a certam depth crf�ml�dment b�l�w llhat �h�� �c�ne. T�.e ga�techn�cal �aansultan,t sk�ould cvz�firm that the requir�d embedment�� at�uan�d T��� �c�u�.c�p�y���l.ly c�bserv� that the caissaans are fihe rreqwrecl depth below the sheaz zcrn� ��'th� c�epth t�►th�s�.�ar����vaz�.es frc�m that d�s�,�ned, th� �firucfiural, engineer shauld be cansult�d. T�e c�%��z�s s�.�►�1c� � re�nnaJ..yz,�d if the depth t� the shea�r zca�.e is de�pez than currently estunated>° Follawi�� constructit�n atyd in r�spc�ns� �o vur cc�n���€�� c�f a�prc�val �.n.d az� �.a�l �rom th� caty af Augusfi 13, 2047, the consultz�nt p��,red a �egart (G� E�vir�n, 2�°7c} �nd�t�t�n� th� t�� depth t�o sh�r zone had b��n ol���red by th��r field �z�nt��l for �ll ca.i��ns They pr�v�d�d a t�.�t� l��tin� t�e depth to the �hear zon� �th�t e�� caissc�n �'lur�n�a pht��e ccrnv�r�tran u�th the c+�nsultant at that t.�m�, he znd�cated that the deptk�to the ��e�ur zaa�e had been p�ysi��Il}� c�bs�rv�d (dowt�hhale [t�g�ed) �s such, �r� �pprvveti catt��tru�tion of the �aissaz�s. We prc�vic��tl the f��1e��vizag cc�t�rnent in€�ur appra�val of Au�ttst�4, 2007; ��IC��Mf4C1 � �������-�$$ °`The repart (C"rea E�vura�, �0�7c, cr��ted v�� fax rec��ved Augusc 24) dacumentir�g th� c�issc�n pla�ement �s accepted. 'U'J"� ur�derst�ncl, ba�se�t t�n c�iscussaons w�th the gec�t�chnic�l �a�sul�n�, th,�t the depth ta the shear zone was c�n�rm.ed an�t p}�yszca]�y t�bser�ed (d��ale �c���ed) d�,�nn� c��� excavata€sn" I� the�r rscent rspe�rt submi�t�d �'c�r �.� �clu�.� ���.e lc�� {� �av��a�2�1�a�, the cr��sultant stat�s t1�E the ca�s�ns were cinlied belc�v�r the shea�r�r�aar���.n.ci c�bsez•v�d by an.e�g�n�ri��g�l��ist ��we�r�r,durin��.plar��e cc�r�versa�c�n w��.�k�r.��n�ul�n��az��arc1� �6, 2�09, the c�n�Itant seemed to ind�cate �t th� c�iss��s�r�re �€�t d��tt�le 1c���y as we�ad previ�u�l��d�rrstc�d Based on that conversa�tt�rt, it rs �c�t c�ear that each cais�n exc�vat��n w��hecked t�determi�e if the d€,pth to the shear zs�r�in the excavat�on �as deeper tt�n�nt�����ted. In�ddi�t�n,ik is not cle�r i£'each caisson w�s logged by an engineering gealr�g'rst. Please provade a clesr discussian regar�d�r�g �ar�r t�h� �a�s�ns w�ar� lc�gged, how the actual depth tn the shear zc�ne within each ca�ssr�n was est�bl�sh�d, and w�,th�r �r .��t the exca.va�ons were downhoie logged. Flease alsc�prc�vide th�names and qual�ficat�an�ofthase wha provided abservat�on c,f the ca�ssons �.ev�ewed by Uate Mazch 16 2009 �, an U H�rt�be , GE 2'�1 l R�vzew�d b � aat� Mar�cckx 16 2009 Y Philip A,. Bucluarelh, ��G 1'7�5 � -2 - Leightor� . � PREYTOULY REV EI�ED REP�RT�Ft3�t T�II�13��E�t,1pN��T Danald J 3�man& As�cra�s, �t3�a, �i.��p�z�se ta�he C�t�c�f D�arr�ond Ba�r�ot.�cbzucal Rev�ew Sheet of Lat l 3, 1���Chrs�c��m'�'�l;�%v�,Tract N�a 378'73 �n the City af Dram�n�d Bar, dat�d Uctober 6, 2004. ]�z��I.d J ��� Assr��ates,�C}��b, �.esgo�s�to the City r�f�iamond Har Creotechrucal Rev�ew Sheet of Lt�t �3, 1�3�Ch�sholm T��al�v�,T�ract No �7873 in the City of I�iam�nd Bar, dat�d T)ecember 16,2{�04 D�n�d J, I�t.m$x�8t ASSOCt��Sy�005, 1196 Chis�.olm Trail Dnve, I7iamc�nd Bar, dated 7anuary 24,Z��. �onald �nman and Associates, 2q0�, t�ns�te Grading and Draana�e ft�t L,t�t 13, Tra�t �7833, Plari dated tht�ug� Revision 3,Decernb�r�7, 2{�?t, sig[�ed Jun�8,2007. Donald Lunan and Assc�ciates, 2�07a, Fc�undation Plans and I?etai�s �'c�r �h� ��n�l� ��uly Residence 1196 Cku�vlm Trai1 I3nwe, �3��sn�r�.�l Bar��a�ifornia,Rev�sed M�y 8,���" Uonald�zaman and Assoc�at��, �U(�'��i, 11.�6��.zscs�m Tr�til,letter dat�d June 3�, 2�1�17 E�L, 2{�t��a, �han�e c�f Crsn�ult�nt�nd F�es�nse #o ��ty af Diamond �ar D�parkment of En�,ineenng, Revrew �heets �l 3b, �198 ar�� �2�� �h�sc�lm Tr��, City vf Diamond B�r, Californx�, EGL F"ro,�eet No. 03-Att� t}l�Et�'.arR,dat�d Apnl 21,�CY�3. ���, ���3b, Ftesponse tcr Crty c�f Di�mc�nd Bar Department of Eng�neerrng, Rev�ew �k�e�ts 1I96, 1198 �d 12U0 Ctuso(m Trail, City af Di�mond �ar, Caltforcua, EGL Praj�ct N� t}3-AA-012E�R, ,da�ed. August 8, 2003, as rece�ved September 11, 2UU3 EC'rL, 200�a, Soils Report Updat�, Prapos�d Single-�am�ly Res�d�nce, Ls�t �3, I��� �hi��o� Tz�u# Drive, Tract Na. 37873, Diazn�nd Bar, �alifornia,EGL Prc��ec�Nc� ���.-{�32U,�ateci 5eptemt�r 3, Z{}t)r{. �GL, 2qqq�b, Respanse tc� tl7e City c�f Dia�moa�c� �t�, ���chnlcal R�view �heet, I.��, J,�, 119� C;hisholm Trail I�nve, Tract No 37873, �}�amand �ar, Cal�fc�r�i�, �;GL Prc��e�t Nn 04-A1�-032��., dated Uec�mber 8, 20(�4 �"r� �nv�r�, �z�a.�, �t�E}'7a, +C�c�t�c�ni��l �ansult�nnt t�f.F�ecaard, Lot 13, Tract 37$'�3, 11�� Ch�salrn Tz�aal Drive, T3tamc�r�d Bar,Cal�ft�rn�a, Prc�jec�No. 0�"-28�C'rl dated May 1, 2007 �'..x� F�va�rcan I�.c, 2�U7b, Geotechnycat �ansultant of Record, Lot 13, Tract 3'�873, 119�i �kuscrlm Tra�l Llrive, ��arnoz��t Bar, Califarnia, Project Na p'�-�8bG1 dated June 27, 2007 Gea Environ �inc., 20U?c, Response, Soil� Engin�a�n� R�v�cw Sheet da�e�i Au�ust ��, 2C�(l'� by �he �ity of Diarnond Bar, "Caissan Exoavatit�� C}b��rvat�ons, Lot 13, Tract �7873, 119� C�ash��.m Traii Dri�ve, I�ia,mrand Bar, California, Proje,�t Nc�. �?-28�Gr dated Augt�t��1,Zt��7 �Geo En�rimn inc , 20t}9a, Final Geotechnica�R��rt,�t ],'�,Tarza�t 37873, 1�3b Chisht�lm Tr�il�1�i�re, Diarnand �a�r Califcarnta,Pz�ject Nc� t17-2��G-F d����`�b�ruaz^y 17, 24{�9 Hu �s�c►ciates, Inc, 2���, R�spc�r�se tc� City c�f�3�arnonc� Bar Gevtechnical Review Sheet, Lat 13, Tract 37873, 1 l�fi��,.is���"rail,Dt�c�n� B�r,C�ifc�mi�,Yr�a�e�t HA-5482-7,d.ated December 28,2� L���ht�� 291Q164-188 Hu Associates, Inc., 20Q6, Response to City of Diaznond Baz Geotechnical Review Sheet, Lot 13, Tract 37873, 1196 Clusolm Trail, Diamond Baz, Califomia, Project HA-5482-7, dated February 20,2QQ6 Keith Ehlert, 20Q0, Report of Geologic and Geotechnical Engineering Investigat�on, Lots 12, 13, 14, and 15 of Tract 37873, Undeveloped Property Westerly of the Intersection of Rio Lobos and Clusolm T�1, City of Diamond Baz, Pro�ect No 4172-Q0, dated May 29, 2Q00. O �eighton ��� ° � ��'� G�O�E�HNf(:AL AN�EM�1FtONMENTAL�iYGiN��Rt�iG�l�SUtTAM�,�N� 124D N Van Buren St SCe 1Q1, Arrahe�rn. Ca 9Z807 � �714)53�-3i9t3 • �ax(7�A�����-�I91 M�rch l2, �009 3'o�a No C}'�-286C�-� Mr. Narinder T�umar 1�535 Flatbush Ave�a� Norwal�, Ca 90fi5Q ��r���ect. L�tter�f A�,�d�n�r�m, 111 Sta#ement per C�u��ty c�f L�s An�eles� Lot 13, Tar�et 37873, l t�+� �C�isk�otm Trail�rive, Dia�mand Bar,�a�if�rnia" Refer����: l) Ge€� Envittrn, Fet�ruary I�", �Ofl� " �`�n�l Ge�tec����cai F�.�por�, Lt�t I3, �"rac�37�73, l l96 Ch�sholm Tra�l Dr��re,L}�amaz�d�ar, Caltfc�rnxa„ Dear IVIr. Kumar: Per your r�qu�st tliis addendurn letter(111 Statement) rs provided for your review Base� upan the �nd�ng summanzed in this report, �t �s aur prc�f�sszc�17a1 aprmo� tha# the campl�t�d grad���g �r�tlix� th� sub�ect site vcr�ll be safe frnm the settl�m�nt, sl�ppage, or landsl�de provided the r�cc�mme�dat�t�n�c fthis re�vrt are incor�?orated int�the s�te devel�pment and grad�ng It rs als� ��r �p�ra��� t�at th� prc�pt���d szte improvem�rat� w�ll �a� ��lv�rsely aFfect the geologic stab�l�ty�f t�e s�te�r ad��cent prc�pet-��es prov�ded t�aese r�con�rn�ndat�o��s are adh�red to �V�a�ap�c�������s a�partut��ty tc�be�f serv�c� I�y�u�����.ny c��es��c�n�c�n�;��g�ur �in�i�gs,�lea�� cal� at yc�ur es�r��en�es�ce. Res�ectfu]ly subm�tted, Geo Er�viro�n Er�g. Cor�sultants,Inc. Q����ss�,o�,r ������� � � � Mo a3�t �a ........ � �� �„ ,�ab�d M� u Esma�1 Rastegari Pro���t �n s e�• '�,��h���.�,'�`'�"��` ��v�l En�ineer,RCE 4333� �'�,���� �MI��t1�m } x' N G�C�' E��T�AL REVIE�V�'HEET LEIGH"T�I�t AND A�S���T� �� ��-��"� ���I'°�'����► FUR. p� ���D ESAR CIT� �1T'DI�lNi�1+�� 1�}R1i�lEP�l�d�'�I1 I)EPAR'�':�EIriT QF ENG G r �V�UU Bl►: ���� [��:,,�� �'m,}�ct Nv 29��1&�-188 Taract�s} �'��'73. Lat �� �ate t��rch 11 20�9 P�nt Tract I.,c�c�t�c�r�IC�j,vner Ivir N'�rnder�utnaz Site�cldress �� �i�hish lm Tratl tJn�re Geal�gi�t Deve�o�r Sa��s Engine�z �'rev�z�vimz� �ng��er/Arch. l�na.ld J Inm��n�Asspc R��'IE�V OF. G�t� �nv�ron Inc , 2(}09, �'in�N Gec��c�cal l�eport, Lcat I3, Tract�7��"3, l 19f C�shvlm Trarl L3rive, T}iamond �ar Calift�mia, Fr��ect No. Q?-28fG-F dated F��r�ary 17, 24�39 gRE��U�..�Y REV�E'�t���: I�a�ld J. Tnman 8�Assaci�.tes, ��� Res��r� ta�e C�ty of l��a�and�3�r�atechn�cal Revi�w She�t c�f L�t 1�, 119�C�isholm'�"ra�l I�r�v�, Tract I+I�. �7873 in the Ci��f Diam���F3aar,ciated Oct�a�r 6, 2Q0�. Dor�� ,�, Inma�&Assc��iates,2D�b, Respa;ns� tt������af�?ia��nd B�r(.rec�tecchn�cal Revicw����a�Lot I�, 1195 Chish€�l�r�Trail L}riv�,'�'raci No �"787� �r�the City�f�iatnvnd Bar, cl�tte€i Decem�aer 16,ZD�4 l�ort�.l�t J �.rnsn �Assca���.��,�0�5, 1196�h,t�solm�"t�il Dz�ive,Diazn�r���3�,r, datec�3anuary 24, 2QQS. �'?c�n�.d Inrna,�z �nd�►ssaciates, 2Q�Z, Onsrte ���lin� and �'3r�n�ge for Lc�t 1.�, Tract 3783�, P�an d�ed��t��h Revi�ic�r��,I3ecem�er 27,2{��l&, sign�d�ur�e 8, 2Q07. Dor�� �nan anc� i�ssc>���te�, 2�7�., Four�riation �l�n� and �eta�l� for the ����l.e F�ly l�.�si�ie�c�; 119b �hissalrn.Tra�l Driv�,l�iamc�r�� �ar,C�l�forni���s�d il�a��,2�f�7. Don�ld Inm��d Assc�ci�.�,2Q07b, 113�Ck�iss�lm Tr��,le�ter dated Jun���i,2QQ7 EGL, 2Dp3a, ��.ange af�t��sulisrit and Res�n�s ta Cit�+ of F.}iarnvnd Bar �paztrnent of Eng��r.tt��, �evie� ��.��ts 11�f, I�98 and l 2E�0 ��-ii�alm Tr�i�, City af Diamc�r�d Sar, Cat��'�rr�uua, EGL Prc��� Na Q3-�A- t}1���R, d�te�Apnl 21,2Q0.3. EGL, ��3b, Response t� �ity vf T��n€�nd Bar De�aar�snent �f�n�ne�rin�, R���v �heets 1�9b, �t�8 and l�(}4 �hisQlm Trail, �ity c�f Ui��nci B�r, �aliforr�ia, E�L �����t �+1�. �3-AA�I2E��., ��ted A.t�g�.st �,2003, �r�e�ved �epterr�ber I I,20U�. �.�1��3���3 � 2}It?��4-1�8 EGI�, 2i��}4�, Soi1s Repesrt [Tpda�e, Prapca���l S��ngl�-�'�rn�ly R���d�nce, �t 1�, �19b ���shc�lm Tra�� �3nve, Tract I*�� 37�73,D��rs�n��ar, �a1���maa, Et�L Pr��ect I�1cr.{l4-AA-�l32U,d�t�d���s�ember�,�U�4 ��L, 2�b, F�e��nse t� th� ��� �f�iatnnnd �sr, �ec�t�chni��l Revievv Sh�t, L��t 13, 119� �hishc�Im Tr�l i��v�, Tra�t No �7873, ���rnond ��ar, �al�fo:rnia� ��L Frc�,�e�t N� �4-�A��32�I1�, dat� Dec��.ber S, �p�4 �ec� En�rirs�n ��.x ��{{17a., �`aevtechnica� �onsultan�.of R�c�rd, T�t 13, Tr�c� �7�73, 11�� Ctusvlin Tra�l �nv�, L��a,m��td�ar, �rill��'ca�rua, Fr��ect Nc�. fl7-��6G1 da��i May l,��lU�, ��a Ers��r�n �.nc, 2C10'�'b, Get�t�chtu�aI. Cvnsult�t c�f Recvrd, Z�t 1�, Tract 378'��, ��9�i �hi�alm Tr�I. I7nve, �}��non� �3�rr, C�I�foarnt.a,Fr�je��t Nc� �7-Z���1 d�t�d Ju���'�,2t}�7. �eo Environ �c., 2{�l'�c, �.�pon�e, �c�i�s Engy.���ng Rev���uv �heet d,�� �ugust 13, 2�7 b� �he Crty ��' Di�€mc�nrl Bar, "��is�c�n E�cav�#ion�s ��a��rva��an�, I.�t 13, T��t 37873, 11� �hi��atalm Trai� Danve, �i�mnn�i B�, ��I�fnmi�.,P�a�ec�t Nc� 07-���G€�a�d Au�ust 2(},2�7. Hu A�Qctate�, �an�., 20�5, R.��ponse t� ��t�r�f Diamc�r�d �ar�evte��n.�cal �.�vi�w �h�et, I.,�t I3, Tract 378�3, 1196 �ht�lrn Trai�,I��amc�nd Bar, �alrf�rnia,Prc���ct HA-�4�2-7,d�t�d�}�m��r 2�,20�� �� �ssoc�a�es, Inc, 2046, Respc>n�e to �it� of��nond �ar G�tec�nic�I Rev�e�v �hee�, L�►t 13, Tract �'7873, 1 I�b�h���Im�Tr�ul, ]�iarr�c�nd�3�r, �alift��nia, �r���ct�-5482-�,dateci �ebru�ry 20,��1� Keit.3a Ehl�rt, 2�l{l�, Reg�rt a�`Geealogi� ��i Gec�t�rt��cat Engi�a�e�ng�n�v�s�i��on, I.�� l2, �3, �4, and 15 0�" �'�ac� 3��73, CTndeve��ap�r,i Prt��t�ty �V�stear�y �af the In.t�arsec��c�n �f�� Lo� and �hisolz� Trail, ���y t�f �3i�rritrnd�ar, Prt����t Nc� �17�-q�l, dat�.May 2�,200�} �+C�'I41'�; FIanlRepc�rt is ge�t��hnicai�y a�rpr�ved Plan(R��art not�pprn�red f�r r�e�vns be�c��r :� Pla�t�.eport `rs�eot�hnicall��Prvv� Suhm.it P1a�IRep�rt f�r re��k Ir�l�de� �ubject ta cand�t��ns�elc�w �opy c��th.is r��ui�w �2E�TE�' �Ct)149:M�I'�t'TS: 1. Plea� pmvide a st�.�m�nt in accarda�nce w�th Secti�n � 11 �f the L�a� Ang�les Builciing C.c�d� l�as�d�t� the rest�l� c�f abs�r�atian a�d te�tin� con�u�d s�uring �du�g and �t�r�ructir�n, The staternent sht�talcl �e sign�d by t�e ge�tec�nic�I et���n�r and�e eng�neerin� �e�I�gi�t f�r the prc��e�. Re���vv�d by �_ Dat.� ��rch 11 2009 on�.Her���rg, �'�11 Revie��d by ��� �ate Niarch 1� Z�0 Phili��. Bn�hs�r�lli,CE� 17�� � _� .. �E�1��1�C?I� .. __ . ,_ . --- - - -- ,�...,��, -= -,...,�,��.�---....�,�..-� _ ,�__�..�. .�.��.�.�..�„_,....,.. � � j , _. 1 ���`� G�[�TECHNI�t1.AND�I'V1Rt�t+1MEN?'AL Et�INEERING C£3tY5t�L7A(+Ci"5,1NC � 124ti N Van Suren SC Ste g(?]. Ar�ahe�m, Ca 928U7 • [7�4)632-3190 � �"ax�714}Fi,3�-31�� 1 � Frnr��. ���rEcxnrrc�t��Po�r t�r�� r���r����� � r i � ���s�r�ts�rot�rr�rc r��rvF �I/'��l�?�t��4R, ��ILl��R�V1A � � 1 � Febr�tary�7, �i�� Job No. �7-28�c��f ' � � � ' � MR. NARINO�'R 1CUMA�R 93535 FLA7�US1�AV�'NUE fY�J1Wl�i.�j Vli ���V � � �� ��� � ��� I���f I�'� GEOTECHNICAL AfuD EM/IRONMEMTAL ENGINEERIkVG CONSULTANTS,IMC 1240 N Van Buren St Ste 101, Anaheim, Ca 92807 • (714�632-3190 • Fax{714)632-3191 LS�ci�� J � 1�7 �� � e �iF?�t„��e;:�a'�:: 't� ����l��i�'$a'�6113 �e��Ec�,� ��a��� ����� - �9' Febn�ary ]7, 2009 �g�pl�l�l6� Job No 07-286G-F Mr. Narinder Kumar 13535 Flatbush Avenue Norwalk, Ca 90650 Subject: Final Geotechnical Report,Lof 13,Tracf 37873,1196 Chisholm Trail Drive, Diamond Bar, Caiifornia References: 1) Hu Associates, Inc, February 20, 2006, "Respanse Geotechnrcal Review Sheet dated January 28, 2005, Lot 13, Tract 37873, 1196 Ch�sholm Trail Drive, Diamond Bar, Ca " Appioved m March 8, 200� 2) Hu Associates, Inc December 28, 2005, Addendum to Response Geotechnical Review Sheet dated January 28, 2005, Lot Z3, Tract 37873, 1196 Ch�sholm Tra�l Drive, Diamond Bar, Ca 3) Environmental Geatechn�cal Laboratory, Inc , July 9, 2003, Response to city of Diamond Bar, Revievv Sheets, Z 196, 119$ and 1200 Ch�sholm Tra�l, Diamond Bar, Ca 4) Ke�th W Ehlert, 5129100, Report of Geologic and Geotechnical Investigation, Lot 12, 13, 14 and 15 af Tract 3 7873,Undeveloped Property Westerly of the intersect�on of R�o Lobos and Ch�sholn� Tra��, Diamond Bar, Ca 5) Donald J Inman & Assac�ates, P E , Foundation Plan & Details, 1/22/07, Revised �n June 25, 2007, 1196 Chisholm Trail Drive, Diamond Bar, Ca Dear Mr. Kumar: Th�s report presents the summary of observations and testing services prov�ded by this firm dur�ng grading and construchon operations for the sub�ect site Mr N.Kumar, Lot 13, 7ract 37873, 1196 ChiSholm Trad dri�e, diamond Bar Page 2 Job No D7-286G 3 EARTHWORK ROUGH GRADING Cut-fill grad�ng were conducted withrn the proposed build�ng and slope areas A min�mum key width of 15 feet wide was constructed at the toe of the proposed slopes The keyway was overexcavated to the native competent so�Js, observed by our fte�d representative, approved for fill placement Fill sotls were placed in l�fts not exceed�ng 6 to 8 inches m th�ckness, watered as necessary, benched into the nat�ve strata and compacted to a minimum of 90°/a of the laboratory maxzmum density Field density tests were conducted at 2- foot verEicaI mtervals of compacted fill placement The area was overfilled and then cut back to an incltnation of 2 1 (horizonta] vertical) In-place density tests were performed in general accordance with Nuclear Methods ASTM D2922 and D3017 procedures at a frequency suf�icient to vertfy the moisture content and degree of compaction obtained Maximum dry density of the fil.l soil was obtained m general accordance with ASTM D-1557 procedures See the summary sheet m Appendix `A' for the descript�on of the on-site fill mater�aEs and tlie density test resujts CAISSON EXCAVATIONS Total 28 caissons were dnlied wrthin the proposed buildmg area All caissons were dnlled as per the foundat�on plans All cazssons were drilled below the shear plane, observed by an engrneering geo�og�st, and approved for the mtended use CONCLUSIONS All cut fill grading within the buildmg and slope areas , caisson excavations with�n proposed buildmg, and the have been completed in accordance w�th the rec�uirements of the so�Is report and the foundation plan The completed site in the areas as noted is adequate for the constructton and support of the proposed structure Geo En�lron Eng.Co Itants,Inc i�lr.N Kurnar,�ot�3,Tra�t 37873,'�'���GhT�h�stm Tra�t l�r�ve,C}lamt�nd�ar Page 3 Job Na 07-28fi�3 Th�s 4p�rtun�ty t4 b�c�f s�rv�ce is �r�at�y apprec�ated ify�u�ave any questions concerniz�g t��s, ple�se call at yaur c4nver�T�uc� S�i�cerely, Gea Er�viron Eng. 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Ye�w�apy CUent -_�----'__., __., _ __. __...._. _ Td1 (7i4�832-3 f:�€1 �$ac8fved t�y' Fax �'7t4J�33�3i�1 Mr N Kumar, Lot 13,Tract 37873, 1196 Chlsholm 7rall Dr��e, D�amond Bar Page 3 Job Pio 07-286G 3 TABLE -PILE EXCAVATIONS Caisson Nos Depth Be�ow Shear Zone Tota] Depth (feet) 1 35 71 2 37 5 72 5 3 35 71 4 375 725 5 35 71 6 37 5 72 5 7 34 58 5 8 35 63 9 34 51 14 30 51 11 30 51 12 30 51 13 31 5 52 5 14 30 51 15 30 46 16 30 46 19 25 40 24 25 33 5 21 25 33 5 22 20 2$ 23 4 14 6 24 0 10 0 25 0 10 4 26 0 10 4 27 0 10 0 28 0 12 5 Nate Addrtional 2 0' excavation for soil cuttuzgs clean out on each ca�sson bottoms Geo Environ Eng Consultants, Inc APPENDIX-B PL07 PLAN Geo Envlron Engfneering Consultants, Inc. -�� ,� ��� �� �� i� � �``�r,� � � �'�j. � � ` 4�� � � � � � � " � ,�� � � `�� � � � � � � � ; ; � �� �� � `� .� �.. � � � � � � � � ,� ,� � ��,����`-��'� � � � � 1 `�;,, � '�3 .�... � � �� ; � �,�`� .--�-__-�""`"�..---�- � `�,� '� ` �� ''�x � � � i `� � �,�'� ,�� � `. ` � � �' � , �� , � .�-�' --� � � � ; � ; � � � . r'" �,r" ���••..�"""""«-.^^"""'+y,� � � + � � � ;F 'j� �� � � i:4 �� . s � � , t,�", _ ,,,�• �•,rf',,.�"'% ',,,........�....�.:.�.� 1 t, � s �3 � � \ � ; 4 � "`� �c��+� � .r���,t' �.-✓�N �..Y"` j� � �� � � k 1 t � � � � # � `� `y� + ry ti�4 "�1s�a �., -`.,'�--.'`�'" .� � � �,' �,,� �� � � � `.�� � �"'"`.�— -�...``_��,, s F �` p { �.`'e,,,.....-�r�..r'i_� 1 � �`� i � � � � � � � ....` .. �-' �,-�` ,�-„� `� ��y �� � ��� � � `t � �,"''�«' ��1 t"? ,� ,�,,,,W.�-"` , � � � � � , �'t '"Rr"'��''�r �ti �. .�� � y � � `�'� ` '�+� ��.a.., a i � �..�.« � * .�`r�' ..."`r �a� � ''� �'"%� `� t � '{ �, `�" ".`"^",.... �`*. .�^ �t i � � +�,,� "'^^--._ . �. �'' ".�---r...,�, ti � �.,�.,}� � � � � � 1 � `` � -.»__._�.,,�._,_ -----......,'ti ' � .r� � '�, e ,� f � � '� �, ; "`�, --.",� _ f' , _ � q `', `` 'i `� � � � � � �► `+� ,✓'� ` � �� � �}' ``Y r L� ./'� *�s `� t �,. +�, '",�! � � �,.��s',� i 'E �.� � � -..,..__..,..,,�,w�,,, `fr � � �` _. , � �� „�*' �1k �;�,� �y � � � � �� `"' •--�•-^_-•,,, l � ���� 4� � ��� � � � A� F r''�� ���'k �� � ` � � � � � � 4� w_.��_�..� � '� � , �'��`�.� �. � � � � � . � � � � 5'i� �� � �S � � � � � � � "`"*E.., ''• r ,�t'' �M�� y� � � �i 4� � � e ! � ,i ��► �� i � .... �� � ; � - N M��� � �', �� � � � �4� � � w r ''"'w� � r � ` �,..d '''`�-- ...�,_..., - -�"�`� �� � --�--�-.�..w �� 5 � � � ` i 1 .� � � � � � 4�'� �.r �� �...-�"..�' � � f�1 � j � \ � � � . +� � C�J � • # � � � � �� � � � � � � ������ �� ; �. � � � �� `� � � �� � �, �-�' -�� - � , �'` � � ,,,,�� , � - ' ��� s � s,� � � � � ...� �, � �, `� �� � , �€� '� � '" '�e � � . � �Z� i � .r••'-^"' 1 yY� f �y l� � ��j � � � ..�-' � � ��, .1 '*�* � '� "" � � �� � 4 i ' � �� '..... � � � � � � `� � � ` � �E ��� � f.�iS, '''�" � � 4� � "t� 4� �� � � �... _,,,, - ��,.,... �„�� � ��'4� '; �, �. 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"..+� .-"'��, � '� �,...�..��'""�� "y"' �' � �t � �j� L'� � ,.. /'� � y � � 4`f � � � � ''y 4 ,�., cCA � �+ C� Rr���r"r�"� � N.." � '.. (� '""l ,.,,�e,^'c�'�` � � � � � a+„�s'"' � `� ' � �' ,...�- � �- � '� � _ � � I' � 4 +��o�r��c�z.�v��13��11E� W�TN �C�hii��� �C�� �.�� �..EI�HTQN AND ASSUC���� k'UR PUBLiC W[�1�G(��`+C�i4�tF�TN«h1T CIT�' OF DLA,MtIND�AR �`��e�.--'" �A,�: '-�"� DE�'ARTMENT UF�N+G , Pr���Nc�.��1�11�4-��� t � Trac�s) 37$ 3 �C �3 I?a� � A��st 24,2f3E17 P�t Tra�t L�s�at��nl�wner It�r.NazYrtd�Kum�r �i��Addr�ss I�G�� �inl�Trar�L)�ve G�lc�gist L?ev�loper Scs�ts Er�g�ine�r .C`.�rec�Envit`cat� Ea�n�rlArch. DQnald J. IIIIilfl21 �TI{l ASSDC. R�VIE�'V C�F� Geo Envirvn �nc,, 2QQ7c R�wt��, �a�l$ Engit��ring, R��n�w Sh� d�cf, August 13, 2447 by the City of Diamund H�r, "Caissan Ex�val��saas +(�bs�cvatiot�s, Lot 13, Tract 37873, 1196 Chisholm Trai! Dnve, Diamond Bar Calif�srni�,l'rc�j�ot N�a Cf'�-�8��'r da�ed,August 20,2007 PREVIOULY REVIE"�'ED: Donald J. Lunan & Assoaates, 20C14s, Re�o�e to the Ctty o�L?t�sy.ouc�Bar Geot�nical Review Sfaeet of Lr�t 13, 1196 Chisholm Trt�iI T,�rive,Tract IVcr. 3'�8'�3 rn the City of Diamond Bar, dat�d October 6,2404. Donald d. Inmazx&Assa�i�tes,20t14�, R.e�ponse tca t��Ctty t�f�'�t�naz�d Bat�o#�c?onicallR.eview Sheet�f Lot 13, 1�9b Chisholm Trail Drive,fir�Na 378'�3 �n t�e�xty af�'htunoz�d Bar,c3at�d De�rnbear lf,2U(!4 Danaid J. Inman&Associates,2005, 119b Chisholm Tra�l �►nve,�,1�.m€�nd�r,�.ate�d,T�az�uary��,Z�5. Donald I�man and Associates, 2006, t,�rssit� �'ri�ad�ng aaad L�na�e ��r Lr�t �3, Tr�ct 37833, P�an c�at�d t�caug� Revision 3, �ecernbet�'�,�€�,stgn�d lttn� S,2t�. 17art�d Inman and A�ciates, 2t}tl7a F�aundat�€�n F']aris �d �et� �"oz� #�.� S�tag�e F�y Re�id�n� ��� G�is�t€a TraiI Ihive�Ui�n�nci�a�r,�.��`�u.a,R�s�d��$,2�7 D�n�d�nmar�and Ass��tes,��, ���6�i�atm Tra��,le�t�r c�t�d���3�,2�7. EGL, 2�3�, Change c����Itst�t and Res�c�nnssi�tfl �tty t�f E►��no�B�r�3ep�ient c�f En�n�ring, Review Sh� �136, I 198 a� �2� �Lm Tr�, ��ty c�f l���unand Baar, C��'�ar�.a, E��.rL Prc�j�ct No. fJ3-.4A- [��2EGFt,z�ated April�l,��3. EGL, ��3b, �t�nse tg City of Ui�t��d �� Dep�nent �tf Engi��rin�,, Revie�v Sh 96, ��98 and 12�f? C�is�tm. Tr�il, City nf Lliamo�d Bar, �alifnrnra, E�L� Pro,j�ct Na. 03- 12EGR, dated Augt�st 8,�t��3,as seceivecl September 11,200�. �.�I�r'I�C1�"I r � � ���o���s� EGL, ���, �orls R�z� �.Jpdate, �'r��s�. �in,�l�-F�a�zly Resz�,��c�, L�sst 13, il�� �tts�o'!m 'I`ra�t I)r�v�, '�'"r��t�*I�r.378'�3,I�t�.tnond Bar, C�ls�`���a,,EGL Prr���Na.: (�-AA-t�32ll,dat�d��t�snber 3,2ClC� E�L, 2004b, R�n�e to t�a City o�Drarn�r�t� �az, Cxeot�hruc�l Rsview �he�r Lot 13, I 19b ����vlm Trrrt�l Dnve, T��t Na 378'�3, I�i�ond B�r, C��far.�ia, EGL�ru��t Na. 4�-�.A-fl�2UR, dat,� l��c�mb�r B, 2��4. G� ��t�i�'c►n Iz�c., 2(�t�7� ��tt�hnic�I �rt�lt�nt nf l���rci, Irot 1�, '�`ra�t 37$73, 11�� G�s�lm'I�z�aul Uz���, I�iamvn� �3a,r�,�t°tua, Proj�c:t Nc� {�7-2$CG 1 �t�1 M.�� 1,�U07. t�ea Env�rc�n Ir�tt�., 2�0'7b G�t+��� Cons-�c�ltar�t of R�rd, L�� 1�, Tract �7�73, 119� Cht�lrrr.Tr�i Ikiv�, D�am�r�c��3ar�ifnmrai.,�r���t No.07-��i�G] �ated 7une�7,2QQ7. Htt ����tes, In�., 2t}(l�, �esporr�e�s���ty�f DiarrtQ�i�3ar C�e�te.�hnical Rsviiew ��� Lot 13,Tra���TS'�3, 1��6 Ch���Trail,T�i�mond�aar,C�iifcmiia,Prc���t�,-�4��-`7,dat�d T]�mbet'2�,2�05. Hu Asac��iat�, I��., 200�, �t.�ras� to City c�f I7��aanr��ar�evt�hru�l Ra��w Sh.eet� L�t ��, Tract 378'�3, 1�3f:Chisc��rr��'ra.�I, a��znc��t€�E3�r, Caltf�rru�,Prr����t�i-S�t8�-7,c�at�i F�b�uary 24,�40C K,eit�i �lalert, 2(�t��, Re�rt vf Geo�csgac�,d C'iec���chr�cai En�r�n�nng I��esti�atic�r�, I..�t� 12, 13, I4, �d 15 c�f Tr�€:t 37873, Unc��v�lc�p� Farr.a��'We.�t�rly af fi�a� �t�€�t� crf Ra.�a Lrabas �uaei �isalm 'I�1, ���y nf I3iszn.�a�d �ar, Pmj�t rilt�.�117�-C�,d�#ed 1�ay 29, ���. A�'TI!QN: �'lanlF��rt�s ge�tec�cal��r apprc�vect Plan/Repc�r��.ctt�g��rect fnr r�aas be�o� � P18n/I�.��is geatechn�����ggroved �ubmit Flsn/�.�rt f�r rec���. lnclude a �ub��ct t:v�ndi#�c�z�belca�r. �p�+a�`�i�revie�u. lt.�'VY�'�V Cl7�NT�: 1. 'T�r.�report(��Envimn�E�t�'7c,��rrected�i�fa�c x�eive�l,�ku,�u��24)dc��ectt�n�the cai�r��1�c�m�n��s �c�epted. �tte�znd�tand,bas�d o�d�acussi�ns w�t�the gec��c�ical cc�z�u�.�.t, �hat the�d���h�c►the s�e�r ��e�rv�s ca�,�iirm�ci and phys�c�lt�r vbs�erved�cia���e 1og,ged�du�ing caai�son�xcava�ou. 2. 'Fh���ra#�haical co�It�nt slaoul€i pz��ri��i�a geot��l,��epcart��ovving th�c�rac����s�rr�unterre�t dut� fitt�gt'sding ar�d �tt�struc�io� The r�� �vu1d aIs€�prcrvi�de a summ�af de�����resulfs an� �tr�� shovviug t�a�l.r�s�t�on��d�i.t�test�a�n�r�t��r ccmd�t���c�bs�v�d du.ri�g c�nst�uc;�i�rt. R�vi�w�b�► � l��t� Au �24 20(�7 Jason�}. ���°�,GE 2711 R�i��rec�by � T��t�: Au t 4 F�lip �..Buch����.i,�E�'x 1715 _�.. �e�gf�tor� ��� � , I � ��'�'���'E� !f�'�"T� ���4D�T�u�,� " ���e� ��c��r�c���cu�����r�r���rrr;�.�n�cs���r�r�c�o�su�,��.�d�`����� ���t'l�i Vars Bu�:�St Ste lf��, �nahe�n�, �a 9��7 • (7t��6 • • ax Ai�it7'd�8Y: � ��7E: �-3�-v� ' ,,.,,,,, Job No 07-�86G Au�ust 20, 20�7 r+.� ,c7 � 'ti� Mr. N�rinder K.um�r `�' - � 1353� Fl�tt�ush A,v�a�ue � _=� � �;n NarW�1�.s�� 9(�6S{! ;-�,� -� y." S� -M ��ry ���y r. �J E�V ~ wr � � � Suhject: �t,esp�rsse� Sc��is �n�i�eering ��vievv ��eet ci�fi�d At��ust ��, ���'7 t�y t�e �ity t�f T�ismt�r�d ��r, "Crri�sr�r� �`xcnvrttir��rs a'�servatic��r, Lpt �'3, �'rrrct .��873, �19b �'1�is1�r�Crrr T"rrriC 17�rive,l3rur����rc1�#nr, �'�ti�"t�rrrirr*' Reference�: 1) Hu .Assac�ates, Inc, �'�bruary �U, 2006, °`Response Geotechnic�I R.e�v�ew Sh��t dat�d January �8, �UO�, Lc�t 1.3, Tract 37873, 119G Chr�liolm Tra�l Dr��e,l�iamond��r, �a"Approved in March S, �Oqf� 2) Hu .Assoc�ates, �nc r7�cen�b�r 28, �005, Addendt�rn to R�s�aon�� �'reotechnrcal R�vrew Sh�et dated Janu�ry��, 2q{?5, Lat 13,Traet 37873, 1146 Chishalrri Tra��l �'3rive, �ramand�ar, �a 3j Env�rranmental ��€�technrcal Laboratory, Inc ,July 9, 20p3,R�spc,nse� ��ty csf�l�am€�nd Har, R��r�e�r �heets, 1 L9�, I 198 �nd l�{}0 Ch�shnlm Tra�a, D�am�nd �ar, C� �� Keith 0�' Ehl�rt, �f��OC�, R�p�rt c�f�eol€�g�c and�e€�t�hn��al It�v��t[g�tztsr�, �ot 12, l3, 14�nc� 15 of Tract �7�73, ��d�velopcd Pro�ezfiy�esterly �f ths znters��t�c��t��"Rza�..€���s anci �����t���n Traal, L���mc�nd �ar, Ca �) I�onalc�J I�r�ar����s+���ates�P� , �'caund�t��n P�an�I3eEai��, 1/��/(�7, Rev�s��f ��t J�tne�S, �{�07} l l�� Ch�s�c��r�Tra�1 I�r�v�,I��arna�d Bar, �a. �ent�ezr�ez�• With �gard to�pils and ��t�le►gy c�mments, the follaw�ng resp�ans�s ar�: pres�nt�d for y�aur re�i�w A co�y of the revr�:w �h�et js �ttacl�ed for your conven�en�� 't � Mr M Kumar, Lot'13, Tract 37873, 1196 Ch�sholnn Trawl Driwe, �aamond Bar ��g� Z . Jnb Nn OT-��ifiG Ct�rn :��. 1 Res�a�r�s�. `i"c�ta� 2{ ca�ssans were dnli�d w�than the pro�osed bu�ld�ng areas All ca�ssons wer� t�bs�rved by our feld pers4nn�l �nd found to b� rn comp�ranee r�r�th the requ�rements �s�nd�cat�d in th�refer�nced�;eotechnic�l repprts and th�fnundation plan The caissans �v�:r`�ember��ed the requ�r�d depth }ael�aw th�shear zone Iterr� No. � �tesp�nse. The ca�ssons were excavated from th��x�sc�rzg gr�c�e elevat�c�rc 9�8 25-�-- T�vc�(Z) �'�et deep gr�d�beams w�it be e€�nstructed ab�ve t�e��l�sc�r�s �`urt�erm�re,add���anal Z �l fe�t was�x�avateci�n ens�re r���va�c�f�c�s�sc�tl�utt�r���an�acl��a��sc�ns Therefore, w�cc�nclu�ed��aai��e cie�t�af the ca�ssc�ns excavat��wzth�n th�prt�pQse�i bu�ld�ng are ade�ca�t� �� han�le th� prc�p�sed struc�r� �.nd the sh�ar ��n� �s�ue The ca�ss�n e�cava��t�r�obs�cvat�t�n]e�ter submitted�arl�erar�e�ttaGhed her�zn far your convenience The �nal gr�d�n�;withrn the proposed butld�ng ar�as will be perfqrmcd a�er the grade b�arns ha�ve b��n �onstructed A supplemental �eatechr�rcal repqrt wi31 be prcavided u�a�n com�letran We appre���te th�s Qpportu��ty to be of serv�ce If you have �r�y quest�t�r��t�nc�rr����c�ur findings, pl�ase c�ll at yaur canvenrence EtespectfUlly su�m►tt�d, Ge�Envirc�n Eng. �c�nsul�a�ts,�nc. �s,i i SS+�-�,�f � r #r'�i hti� 4'n�\ �i� "` � � �,11-� i.,�������� ���1i 4 y � " }f �, 1 � � /' 1` `� , , f Jab� �u �� " Esma�� Rast�g�r� Pra�e t ng�neer � C►v�l �ng�ne�r, ����33�� August�0, �an7 Geo Env�rQn Er�� Cc�nsc�it�n#s,�nC � . , , C�ir k� Kurnar, �.ot'E 3,Tract 37873,1"196 Ch�sholm�'ra�i DrEve, D�arr��sn�f Bar Pag� 3 J�►b�n �}7-286G 3 TA.BLE � �a��,�a� I'�1os Depth Belvw �hear�on� Tpkal Depth (feet} 1 35 71 2 37 5 72 5 3 35 �l 4 375 �'25 5 35 71 6 37 5 7Z 5 7 3� �8 S 8 35 b� � 30 �1 1{� 30 �l 11 30 �1 12 30 �1 13 31 5 52 5 14 3Q 51 15 3Q 4f l� 30 46 I� 25 4Cl 20 25 3� 5 �� �5 33 S �� �� �8 23 (� 10 6 24 t� l 0 0 25 0 10� Zb 0 10 0 Z`� p 10 q Z$ 0 l2 S Nate Add�t�onal 2 0'excav�t�an for s�il cutt�ngs clean out�an ea�h ca�s�on bottorns Geo En+��ron Eng Cansult�nt,��In� ��� � ���� G�C!"C�CHNt�'A!,i�.�l�EPWI[�7hMENTAL�NGih�ERdN�Gt?NSUt�TAN"fS,t1�G 124[1 N 4�an Buren St Ste 1p1. Anahe�m.Ca '��8i�7 • �714i 63�-�13t� • �ax{'�'!4}f�,'�2-3�9I �u�ust l, 2�0� It�b�� �}7-Z86� 3 Mr�N�ri�der�utnaz- 13�3� Fla�bush �v�a�u� Nc��valk, �� ��bS{} �uiaje�t: �a�ss�n �x��v��ions t�b��r�ati�n �Final �f�as�} �ete. L�� 13, 'Tr��ct 3"1�73, 1�96 +�'hish�lm"T:"r�91 �t�rive��3iamt�nd'S�r, ��tii'�rnia Refierenees: �}��a Ass�c��t��,In�,Febr�aary 20,2�J06,"R�s�nse Ge�tec�n��al Rev��vu��te�t d�ted�anua�ry 2�, Zt}U5, I��t 13, Tr�ct 37873, 1!�6���sh�lm`T'ra�1]�.°�v�,l���m��d �ar,�a "Ap�r�v�d�n ��re� S, �0#�� 2}Hu .�s��,ctat�s, Inc L)�ce�be�2�, 2tJ�5,�.dtten�i�zm�o R��pc�r�se��c�t�clart�c�l Re���w�l�e�t d�ted January��, 2005,���t 13, Tract 3��73, 1196 C���h��m Tra�l�r�v�, I��ar►�€�nd B�r,�a �)Ez�v�r�nm�nt�l tz�otechr��c�l La�c�ratory, Inc , July �7 �D�3,Respar�s�ta c�ty c�f�JJ��m�and Bar, Rev�ev�r ����ts, 11�6, 1 l�� az�d 1��}0 Cl��s�Qlm Trar�,�iamo�d�ar,�a. �)I�.e�t�i'V� Ehl�rt3 512�1�3{}a R��3�llt Ct�C`,7fi�QI0�;lG�il�'C'I�t���C'�'3t1IGr`��IC1Ve��1���2�FIa T�o� 12, 13, 14 a�nd 15�fTract 37873,TJndevelopetl praperty'UVesterly�fthe�nter�ect�t�n caf�zo I.€abt�s�nd�k��s�€�lm 'I`rarl, I3��m�z�d E�ar, �a. �) Ll��a�c� J. Inrr��n c��1ss�c��t��, P.� ,�'�ur��ia�,vn �lan��eta�is, 1lZ2�07, T��v]5�� ilt JllIt���� Zfl�'7, 11�� �i�isl���rra Trarl I,?rYv�,T��am�nd B�r, Ca �lea�r��r. K.�mar: In ac�c�rcian�e w�th your r�c�ue�t, c�as�tan �xc�va���n� wstY�an t�� su�jeet pr€>��ct vvere o��erxr�d Tc�ta� � c��ss�n�(� �,3, �, $, 9, 11, 12, �6, 27 }��re dnI�ed at ti��s �nal��ase w�th��� th� s�ab,�ect s�t� T'he ex�ava�ed ca�s��n� were �3r�il�d per �e r�commendat�an� �nd�cai�d ir� tl�� re�er�nce�t s��1s report and t�� fo�zr�d�t�€��z p��ns Al] c��ssc��s �rere �bs�rv�d �c� a�prcaved fc�r pl�cem�nt a�c�nstnact�or� �ala�eri��s The de�tl� �f t�e c��ss�ns exc�vatec� are �re�ented �n the f�rll�w�r�g ta�a1� . � , � Mr.t�.Kumar, �.tst 13,Tract 37873, �996 Ch�shnNrri"�r��l Driv�,�►iarrtonci�3ar Pa��:3 Jokr t+lc� C�7-288� 3 TA�LE � ��.zs�c�n Nc�� `�ota�i�ept�.�fe�t) Rem�r� 1 71 3 71 I S 71 E 8 �3 ' 9 �I I1 S1 E 1� S� �6 1 tl �7 1(� G��ns�iro�Eng.�csnsultan�.s,�nc '! Mr N �Curnar,Lr+t 13,�"ract 37873,199��hlshestm 7raii Drive��E�mar��i�ar A�ge•,� Jc��s Nea.C�7-286�.3 'I`I��s c�gpartu���ty tc� �ae of s��rv�ce �s gre���y ap�r�c�ated if y�u l�av� a�.y qu�stions �cc�ncern�����h�s,pleas� c�il �t y�ur cc�nven�erace. S�n�ere�y, GeaE �nvir+�t�Eng. �on�ulta��s, �nc. `�`�_ ������#� �; ��,,. �„��� ����'�';.�z�`:� �`��� `�;� -;�;t ., �F�� r � ...e t Y `" �£!� 1 � -. e� = r `�n t��:i� . 7ab � sud =�� ` ;;:.•,`�� '� �smail l�.as�egari .1 � � � . � � _.",� ;� C�vtt Er�g�r�e�r, R��4��3� ��'� � ��� �� ��� .� r �� � rP�?, � da, r, � y'! :i �'�1a , =�.yt• �r � �J LiIk}� f�ft�C�'IICt�il�, �`ab�e i�umb�rs a�d�3��t�zs����.a�s��Dr�l1�d C���vtrnn�ng.C�r�sulfants,inc '! r � i ��� ��� '�'� G�C�T�CHNICALAJVD EIWlR�1NMEM"Al.ENGI�IEERING CONSUL7AN'1�,INC ��40 N.Van 8uren at Ste 1pt, Anahe�m.Ca 9�8A7 • �714a 63Z-3y90 • Fax{714)632-3t9Z .�uly 2{, 2D07 .iob Nq (}7-286G 3 I�r,�ta�-�ir�d�r Kur��r I3535 Flatbt�sh Av�nu� I��rwatk, �a '��65f� S�b,�e�f: C`aiss�rn �xcavatit�z�s+C�bs�rv�tio� Si��: Lo� I3,�'ract,�'T$'��� I��6 ���s�olm Trai� 1)rive,Diam�nd �ar, Californwa Refer�nces: 1]Hu A,ss�c�ates,�zzc,Febntary�[3,�C��#f T"�.e�pc��s�C�e�tec�nicai Rev�ew��eet dated January 28, 20�15, Lo� 13,Tract��873, l I9�i�h�s�a��Tra�l Drav�, D�arnt�nd �ar, Ca"t1�p�r�v�d in March 8, 20Q� 2) �Tu Assc�c�at�s, rr�c T�ecemb�r �$, ��05, Add�r�dum tc�Re��c�n�e �e�stechr��ca� Re�v�evv S���t dated January 28, 2�05, Lot 13, Tca�t�7873, 11�6 Chzsk�t�Im Tra�l Dnve, D�arn�n.d��r, �a 3) Envir�nmental G�ot�chr��ca1 L�,b�ratary, Tnc ,.Iuly 9, 20��, Re�perr�se tc� ��ty c�f D�amc�n�B�r, R��vi�vrr Sh�ets, 119�r, 1 l�$ and 12[�0 �hish�lm Tra�l, D�amand Bar,�a. �)K�rt�W Ehlert,5I291Q4,Report q�'['..teolog�c and Geotechn�cal Inve�t�g�.t�ort,Ltat I2, I�, I�and 1 S ofTract�7873,LJndeveloped Prt�peny Westerjy afthe mtersection t�fR�o Lt��at�s and�ht��aim Tra�l, Diamond �ar, �a. 5) Don�ld J Inman � Ass�ac�ates, P E , Faundat�an Plan & Details, 11221�7, Revise� �n June 2�, �0�7, 1196 Chrshc�lm Tr�,�l]�r��ve, Dtamand Bar, �a. I)ear IV.�r. Kur�r�ar. In ��ct�rdan�� w�th yau�r requ�st, ca,�ssan excavations wtthrn the sub�ect pro��ct w�re t�b�erv�d Tt�t�1 � �a�s�ons �� 2,#43 #l�, # 14}were dn]led at this tirne w�thrn th� subj�at srte �e rem��r�m�ca��stans w�ll be ex��v�.ted�t� lat�r dat� The excavated cars�tans vrrere drilled per th�re�nmm�ndat�ur�s�r�dz�at�d zn tl�e r�feren�ed sc��is rep�rt and th�foundat�on plans All ca��sQns were e����rveti $nd �pprt�v�d fc�r p�acerne�t c�f c�nstna.ct�on matenals The depth of th� ca�ssc�ns exc�.vated are presente� �n ik�� �'c�lltae�r�n�t�.ble , . , t , � l ` ' - ���� 4�,� ,� � ��,�, - � � � .t 3 =, .��;�) r � TsM A1 Ku�ar, �.ot 13,#ract 37873, 1��6 Ch��halrn Tra31 Urive��t�rrtand B�r Paga.2 .lob Nt� t}7-286fi 3 T��s cagp�rt�n�ty tt� be Qf s�rv�c� �s gr�atly apprec�atec� If yau hav� �ny c�uest�an� �c�n�er��ng�h��,ple�se c�il at yt��ar conv�n�ence �S[1C�I'���', Gen E viron �n�. �t�ns�t�n�s, It�t�. ,.._. � rr-"'=_�_� �-. �g. ,'.� _ ..�,�" � = r a., ��, . , � ���.��� s z ���� � Ja d asur� y s ��� ��znazl�.asfi�garz Pro� t �nager t ' _ ` ,,�� C�v�1 �ngzn�eer,RC��333� _ �,, �r, a ,���a � , , `�. JNI/ER/grs� ' Attachm,ent Table Nur,�bers and�Jepths o£�a�ssans]��Iled Gea�nrriron Eng Gonsulkants,Inc E � � �fr.N.F4urn�t,1.��13,7r�t JrB7�,1f�8 Gh1a�e�Irt�Tr�il C�1�►e,C�amon�t B�r P"ag�:S .1ob Afo.QT�8C3,3 T"A�3LE 1 +�a�sspn I�iQs Tc�tai I�ep�'t(��� Rea�k � 7�S � 72 S �2 S1 14 5� �+c►�nvtrc�t�ng.fi+a�►sult�nt�,�r�c. c ,-. , ��� �I�f�� I�'� GE07ECHNICALAND ENVIRONMEM'AL ENGINEERING CONSULTAM'S,INC 1240 N Van Buren St Ste 101, Anaheim,Ca 92807 • (714�632-3190 • Fax(7Z4}632-3191 7uly 17, 2007 7ob No 07-286G 3 Mr. Narinder Kumar �3535 Flatbush Avenue Norwalk, Ca 90650 Su�jeet: Caisson Excavations Observation Site: Lot 13, Tract 37873, 1196 Chisholm Trail Drive,Diamond Bar, California Referenees: 1)Hu Associates,Inc,February 20,2006,"Response Geotecl�nical Review Sl�eet dated 7anuary 28, 2045, Lot 13, Tract 37873, 1196 Chisl�olm Tra�l Dnve, Diamond Bar, Ca " Approved �n March 8, 2006 2) Hu Associates, Inc December 28, 2005, Addendum to Response Geotecl�nical Review Sheet dated 7anuary 28, 2005, Lot 13, Tract 37873, 1196 Chisholm Trail Dr�ve, Diamond Bar, Ca 3) Environmental Geotechrascal T aboratory, Inc., duly 9, 2003, Response to caty of D�amond Bar, Review Sheets, 1196, 1198 and 1200 Chisholm Trail, D�amond Bar, Ca 4)Keith W Ehlert, 5/29/04,Report of Geologic and Geotechmcal�nvestigat�on,Lot 12, 13, 14 and 15 ofTract 37873,Undeveloped Property WesterIy of the mtersection ofR�o Lobos and Ch�sholm Trail, Diamond Bar, Ca ` 5) Donald J Inman & Associates, P E , Foundat�on Plan &Deta�ls, 1/22/47, Re�ised �n June 25, 2007, 1196 Ch�sholm Trail Dr��e, Diamond Bar, Ca Dear Mr. Kumar: In accordance w�th your request, caisson excavations within the sub�ect pro�ect were observed Tota1 1�4 caissons were drilled at tl�is time within the su6ject site The rema�nmg caissons w�11 be excavated at a later date The excavated caissons were drilled per the recommendations indicated m the referenced soils report and the foundahon plans All caissons were observed and approved for placement of construchon mater�als The depth of the ca�ssons excavated are presented in the following table. � , �fr,N Kurnar, 1»tst 13,�ract 378T;�, 11�8 Chlshrslm�"r�11�1r�ve, Diarrs�ar�d�ar f����•� J�sE�No OT-����a.3 Tl��s �pp�rtunit�y t� Ea� caf serv�c� �� �reatly appr����ted if ycr�s ��ve any c��e�t�crns �ancern��t����s,�r1ea���a�� a��raur conven��nc� ��r�cerely, ���nv�rar�E�g, �o�nsult�n�;In�. ��`�����`�$��� ._ .� r � �''��t r`aS t��al"-''! "�;'-. ��"+L. i:{°„ �C`�.-� v� i '' F4` �'� r�y i ��aiE � ' !�ii�, ) ��+ ��be ',,�:� � '�`� ���� �Tlali fi�Stegarl �r��ect � ���r '�� : � P_ �•`„m•f; ��vil ���g�n�er, R�E 43��� ,`,'�;'` '. v �,"£i�;:7^M. ���. ,��tatChmer�t" Tabl� Nurr��ers an�Dept�s c�f Caissons Drrl led July 17,2�OT �eo�nvlrc�z�Er�g Cansult�n#s,t�c • , � Mr. N. Kumar, Lot 13,Tract 37873, 1196 Chisholrn Tratl Drive, Dlamond Sar Page:3 Job No.07-286G 3 TABLE 1 Ca�sson Nos. Total Depth (feet) Remark 6 72 5 7 58 5 _ 10 51 13 52 5 15 46 16 46 �9 4a Za 33.s 21 33 5 22 28 23 10 6 24 10.0 Zs ia.o as i2 s Geo Envlron Eng Consultants, Inc • " ' �EC1'FECH;��+�AL REY���V�H��T LE��T�"TtJ� A�D A�StJ�C�ATE�, ��'�f�. �-,,,4_�� F()I� :i� ��?;: ;�;��.''�l �?r� ',' �CITY f.,lF DI�VIt��iD B� ` � a�J ,!._;,a ���'i':.� DEPART�EN'�'�F EI�GIi'+TEERING ��lt�1..l�J�.. -;� �'i'� ��' �2 Proaect Na. 29101154-1$8 Tra�t�s} 37873 L�t 13 Dat� June 29. 2047 P��r��Tract L�acat��anlQwrrer Mr Nanr�d�r ICumar ��te Addr�ss 119C Chisholrn Tr�tl Drrve C�olog�st L}ewelaper Soxls Eng�neer Geo Enviran Eng�neerlA.arck� D�rna�d J Inma�z� and Ass�c �vIEW QF: I�anald Inrnan and Assoc�ates, 2007, 1196 Chrsolm Traal, letter datec� June 3�,2�}�'7 Geo Environ Inc , 2007 Geatechtucal Const�ltant t�f Et��t�rd, I�t l�, Tr�ct ���73, 1��6 C�is�lrn Tra�l Dr�ve, L?�amand Bar Calrfornia, Pro�Ject Na 47-�86�1 d�tec�J�ane��, ZC}(}7 PR���OULY R�VIEWED: Dor�ald Iz�man and AssQc�ates, 2t}�6, Qns�te �d�n� ar�d Dra�nag� for Lot 1�, Tr�ct 37�33, PJ� datte:d though Revtszan 3, D�cerr►b�r 27, 2�3�b, s��r�ed .Ittane 8,2�(}7 DQnald Inman and Assvcz�t�s, 2�07 F€�unda��n Plans and Dett�ls for the ��r�,�le �'�mily Res�dea�ce 119�i Chi�olm �"r�l Dr�ve, L�iamt�nd��, �al���rn��,Revased May 8,�00'7 1�aanall� ,� �nznan & Ass�zates, 2�4�, Respc�nse ta che �Crty af T�ramond �ar �eatechru�al Rev�ew Sheet of Lat ��, �����k�z�h��m Tra�� �3nve,�`ract No 3�8�3 in the Crty of D��nond$�t', dated �}ctabear�, �004. I���.�d .] Intnan c� ��s�c�ates, 20(�, R�sponse to the Ciry t�f Di�mt�n�i $ar Geotechnical �evrew Sh�t of Lot �3, �l��i Ch��holrn Trail Dnv�,Tract N� 37873 rn the Crty of L)lamond�ar,dated I�ecember 16,2004 �?t�n�d 7 Inman&A�s�c�ates,�OOS, 1196 Ch�sholm Trarl Drrve, Di�mand �ar,dated Jar�u�y 24, �q05 E.�.rL, ��Cl�, Respc�r�� tc, the City of Dxamaz�d Bar, Geatechnical Rev�ew Sheet, Lot I 3, 1 l9� �h�s�t�lm Tra�1 �3rtve, Tract No 37873, D��mond Bar, Cal�fornia, EGL P'rc��ect No 04-AA-�3�UR, da��d Dec�m�aer 8, �0�4 E�rL, 20�}�, �a�is Report Update, Propos�d Single-Pamrly Residence, Lot 13, [13� Ch�sh��� T��i L?�ve, Tract �la 37873, Dr�rnor�d Bar, Califorr�ia, EGL Pro�ect No fl�-A�-43�U,dat�d Se�t.e�ber�, ���4 � , � � ��it��l�C�� 2910164-188 EGL, 2003a, Change of Consultant and Response to Crty of Diamond Bar Department of Engineenng, Review Sheets 1196, 1198 and 1200 Chisolm Tra�l, City of Diamond Bar, California, EGL Pro�ect No 03-AA- 012EGR, dated Apri121, 2003. EGL, 2003b, Response to City of D�amond Bar Department of Eng�neering, Review Sheets 1196, 1198 and 1200 Chisolm Tra�l, C�ty of Diamond Bar, Califorma, EGL Pro�ect No 03-AA-012EGR, dated August 8, 2003, as received September 11, 2003 Geo Environ Inc , 2007 Geotechnical Consultnat of Record, Lot 13, Tract 37$73, 1196 Ch�solm Trail Dnve, D�amond Bar California, Pro�ect No 07-2$6G1 dated May 1, 2007 Hu Associates, Inc , 2005, Response to City of Diamond Bar Geotechnical Review Sheet, Lot l3, Tract 37873, 1196 Chisolm Trail, Diamond Bar, Calrfornia, Pro�ect HA-54$2-7, dated December 28, 2005 Hu Associates, Inc , 2006, Response to Crty of Diamond Bar Geotechnica� Rev�ew Sheet, Lot 13, Tract 37873, 1196 Chisolm Trail, Diamond Bar, Cal�fornia, Pro�ect HA-54$2-7,dated February 20,2006 Keith Ehlert, 2000, Report of Geologic and Geotechnical Engineenng Invest�gat�on, Lots 12, 13, 14, and 15 of Tract 37873, Undeveloped Property Westerly of the Intersection of Rio Lobos and Chisolm Trail, City of Diamond Bar, Pro�ect No 4172-00, dated May 29, 2000 ACTION: P1an/Report is geotechn�cally approved P�an�Report not approved for reasons below X P1an/Report is geotechnically approved Submit P1anlReport for recheck. Include a sub�ect to condrtions below copy of this rev�ew REVIEW COMMENTS: 1 The ca�sson design is based on an expected depth to a fault or weak zone below the surface, and the caissons are supposed to have a certa�n depth of embedment below that shear zone The geotechnical consultant should confirm that the required embedment �s attained They should phys�cal iy observe that the caissons are the required depth below the shear zone If the depkh to the shear zone varies from that designed, the str�ctaral eng�neer should be consulted The caissons should be reanalyzed if the depth to the shear zone is deeper than currently eshmated 2. Full-time observation and test�ng by the geotechnical consultant will be required dunng grading and foundation constr�ction 3 Landscape and other improvements not supported on ca�ssons could be prone to movement A restricted use zone should be delineated on the grad�ng plan The owner should provide a waiver to the clty for any nonstructural �mprovements built outside of the stabilized/approved building area � o - 2 - Leighton ' ` ���ai��-i�s 4 Tt�e �ente��aaiic�! �ons����t s�vuld pro�v��ie �r�ort st�cs�v�ng th� cand�t�ar�s enct�t,u�xt�red dur�rt�gr�cl�ng and cvnstructrr�n 'The repar��h��3d sh�w the�c��� Lacation ar�d ci�pth of the caissc�ns and the d��t��th�shear zvn� as nbserv�d during �r�s�uchvn The repc�rts sht�uld alst��r���de a st�ary��ciensity t�st re��lt� a�d a map shnw��t�e location c�f�i�ns�ty tests ar��c�t�er�ndit�c�n����ervei� dunn���ns�ructian Revae��ed by �--� Date J'une 29 �E��'1 Jasc��U He er�, .�.�rE 2�'� 1 Rev�ewed by � ��t� �F�,u�e 2� 200�' PY������ Buch�are��t, �E� 17l 5 � 3 Leightar� � ��� �� ���� C�C}'C��F��IIG41.R�Ip�NYIRC}N1�iENTAL 63�(:It��£�IN�CONSULTANTS,t�tC 1�30�i Van Bur�n St Ste IU1, A.r���e��n, Ca 928�}7 • i774)f3�-31� • F�x (714}63Z-3191 7ur�� 27,2007 , .1ob�No �?-���� 1 ����� ����� 1VIr. Nsrin�ier�utnar �� '°�+,� �� 1353� F(�t�us� Aven�� ,�,�'� �"�� ��j��,�• �IorwalL�, �a �U65� � � �t��ject. ��ote��ni��l Cons�itant of�ecorcC �ite. ��t �3,Tract�'1��T�, 119b ��is�alm Trail�3ra��,�li�mr��d �3�r, ��li�'orni� R��'erences: ����a Assoc�ates,���,February��}��Qf��,"Respv�����Qt�chn�cal Rev��w Sh��t dated 3ar��ary 28, 20��, Le�t 13, 'I`ract 3787�, � l9� C�ishpl� Tra�l I�rtve, Diam�rtd Bar, C� '° A.pprcrved �n Marc� �, �(lC}6 2) Hu A�s���ates, Inc T3ece�nl��r 28, �Ot��,Addendurri t�R���onse Gec�techn�cal Itev�evv ��te�t �ated J�r�c��r}� 28, Zf�{��,Lt�t �3, Tract�7�7�, I I9{� �k�is���rr�Trail Dr�v�x Dt�ond Bar, �� �� �nvuon�enta� �"aecat�ck�zrrcal L�b�aratory, Inc ,���y 9, �C��3,Response ta ctt�r�f D�aznc�z���3�.x� Rev�ew S�eets, ��9b, 119� �nd 12�4 Ch�shal�n�ra�l, D�amtind$ar, Ca 4)Ke�th� Fl�lert,51291�,Repc�rt��'�er�log�c�r���ec�teehn�ca,l Tnv��t��at�on,L�t ��, 13, 14 and 15�a£Tr��t 37 873,LJ�develc�ped 1'ro��rt�WesterEy c�f t�Z��rtt�rs�cti���f R.�o Lt��t��and C�i�s3aolrn Tra�l, 1����a�nd Bar, Ca �� �}pnat� J �r�rr�an & Asst���ates, P E , �`���adat�a�n Plaa� 1� ��ta�ls, ll��lD"7, R�v�sed rn�t�r�e 25, ��C�7, 1 l�& Cha�hr�lm Traif I�z��v�a U;�mc�nd B�z-, �� Dear Mr�, �umar: 'Th�s��tter��subm�tted �t�nrat�fy the C�ty't��'3��amor�c��ar that our firn� {''.a�r�Env�rt�n Eng �ons�tt�.nts, Inc ��b�en r�t��r�eri by you t�a ser�� �s sn�l��z�g�n�er�frecord ����respect tr�al� gec�tec�r�a��l wark v���n saur p�rv�eu� �v be perr�`�a�ned wit�air�t�c s���ect �ite 'Th�c€anclus�c��s�r�c�recommer�ci�t��ns cant��r�et��n th�r�fer��c�d r��rorts an�th�r����ed �`�undation �I�xz d�teti b12�107 I��ve b��n rev��wed and acc�ated �ty t�ur c�rr��any st�E����t ta ��r�fic�tinn �n t�e field dur�ng cQnstr�c�it�r� �r'e re��rve the right tt� mad�fy ex���rtg rec�n�met�da��c�ns, �f f e1d cc�rtd�t�vns��r�faun�3 ta be�affere�nt t���case eonta���d tr�the referenc� r��t�rt �]� fi�ture ��t���;chnical ��orks �;►I� b� p�rfc�rme� �t� ��ct�rti�nce with th�r�ferenc�d sc�ils r�port �r�d t)�e C�ty �f`�}�arn�nd Bar �r�.d�ng code�d s�s����icat�ons Y �� � Mr N Kumar, Lat 13, 'fract 378?3, �1196 Chisholm Tra#I�lrlve, �kiamand Bar Pag�.2 Job No 07-286G This npportun�ty tc� be of servic� �s ,�r�tly apprec�ated if yau have any quest�or� c�ncernzng th��,please cal��t y��ur cr�r�v�r��er��� S�a�cere�y, • �.. . . �,pF�ssat7t,, Geo Enr�iron �ng. Cansuttants, In+�. �����������'t��� � � � ,� �,� � � �. �I t�n a`�'�32 � �Y: � ����r� � '�`� �t,�,�'�' ' V 1 r����f Jabe M su � � ���`�--�-"" �"��'` Esmail R,�st��art �-"r`"..�4�r I,�'111�L F,w,� Presx n �f�;`==�_=-��� C�vi] Et�ginecr, RCE 43332 •tHdWY�� �N�;I11 Gen En�rirnn I�n� GansuC�t�nts, �nc. ` � . r �.. s _ � G� p �,1• � � � N �� ���� � ��. y � r��� N C.� � � g ,j y� � � r ` Fi 7'ri� '. t+ �'�� ^� ��� ��� ���� �Et1TE�i�NNiCAL ANI�ENVIRC?NM�t�tTRl.�NCiI��ERING�L1h�ULTA1�'T'S,�I�C ��?� 'V�n Bu�r�tt S� $�e t�l1, Ar��heitt't.Ca 9Z�7 • �?t41�323�9C� ► �d�t(7�4j 6��3�9i Ju�e 2'�, ��{�7 �c�b�F�. t}7-�86�.1 ,.,,, � �""����r��f���,.����:�� � ��-� ^ ., t���' � —�= �������� �� ������� ��� � � ' n� '� y ��'.�3Y�1]��T�ii��C` � � i �- ; �,I1 >''_�w �`; �.3��5 Fla�b�sh A��v�n�e ������"�9 ����� �a��� � � � c��� _ � �'or�v'sil�,��9it�i5D ��"�"�G�l�1��.� _ -�_ � � �x-���. r;.� �,; r�'� t1't �ub,��c�: G�+nt�chn��a� C�nsc�it�z���rf rt,e�o�d _.�__� `.,' . S�te: Lot L3,'�'ract�78?3, ��9�i C�i��o[m T'ra�l Dr�ve��1��€u�ud��,�a�ifvra�i� R��'�ren�es: 1}��.�.ssc��;at�s,Tnc,�ebt�t�at'��;�,��C?�i,"�t.�pc�nse��teck�u��ti R�vz���ae�i ci��tet�3an�.�y ��,2�1Q�, Lot ]�,Tra�t 3��?�, 1195 ��s�a��rn T��1 ���, D�am�nd $�.r, �a" Ap�rav�d ��n �vilarclx �.�f}�6. 2� ��A.��o�iat��, �n�. �ecer��a���S,2�£���Adc��,�durn c�r�t�spc►rese Cs�ot�chnic�l����ew �h�t dat�d Jar�uary 2$, 20�5, Lc�t 13,''T'ra�t 37�'73, 119C Cl�aist��lm'�`rr��l����, T�ia���ar�d$�r,�a_ 3) Envi�ru��n.t�I��otc�hz�i�al T.�bc�r�.C�ry, �nc.,Ju��+�,����, R�sspc�nse t€� czry af L)��mc��d��r, '�e��ew S�i�ets, ��,�b, I�9�a��ci ��Q� �is����za Tr�1,�iarnc�nd�3�r� �a. �)��ith V�T.E�lcrt,5l2�1�Q,�'t.��rt raf�c�Io��c an�.�ev�cl�n�cal?nv�st��t�ran,Lc�t l�, l�� 14 ar�d �5 nf Tr�t 37�7�.LJnd�vel��ci�rQperty Vt��sterly��'�he�ntea�e�tit�n rrfRi�Lc�bos�d C��s�t��r�z Trail, ,T��aan�t�nd�3�.t,�a. �} D�na�d 1' � ;8c �s���iate,�, �'.�.,Fc���.da�on Plan�C Deta,ls, II�Z��'�, ��e��sed a`,�J�r�e�5, 2�7, I 196 Cl��h�lr�nt Tra��I�x��,�3��rnc�s�c��3�',�. I�i��r�1r.�umar: Th,�s I�ttez is su�►mi�t�s� t��iot3fy�� ��ty c��'�i�mor��i��r �laat��tr��zr� �ea Enuirv�.Eng �an�ult,�ts,�.n.�. �b�n��ti�.u��:d�y yt�u tt��arve �s�ils�ngtr�eez nf r�ctsrd ��t&resp�c#t�all �+e�t��iic�l v�or�C v�ti�i�s�ur pwr�iew ta be�rfot�t�et�wathtn th��tzb,�c�c�Site. T�e ccar�cl��ibz�s a�ad rec�a�am�n�t��ins ca�tai�ed�n t�e ref�re�ceci re�Qr�s ar�d t�ae�v�� foe�nc�a�c�n plan c�t�ci �125/(}7 ��ve t�en rev�ew�d ��1 a�epc�d by �� �vznpany sub��t to vcn��atis�r� ir� �e �`iel� dur�g ccsnstzvc�aaz�. �c r��rvc t�c zi�,� t� m€��i#`y �;i�it�� ��c�zta�men�t�on�, rf fieid�nnd�ts'c�ris�r�fc�und to�ae��f�'��nt t��tk�t�se�c�t�ti���t���f�ncc r��rt �11 �tur� gec�te�hnical�rc�r�,s will b�p�r�'�zm�cl �rs�.ccar�t�,n.ce vuit� the r��'���nc�d �o�ls xegor� anc�r��G�ty o�"S�i�mcanc� Eiar �rrac�n.�c�de an� speci�`�catic�ns. �d �1dL.� •�0 Lf�� �3� •�.in� jCi����b��. : �1!*a ��1Hd F�J�3I�13�1�J ; G��1�� �Mr,rl.Kuwnar.Lot i3,'Trar,t 3T873„'1196 Chish�m Trail Drive,L�iamand�ir P���'� �. Jab No 07'-�86Q "�"his op�rrtunity tc� be o�' serv�ice is gceat�y apgr�cza�ed, �f you �aave any qt�estaor�� c:onc�rnizag this,pl�as�c;�.11 �t yflur c;�nv�i�c�. Sin�ere��, .� i;�a�r�v�ror� �z��.�t�q�t�tltar�ts,�n�. _ . ��o���:.���r �.�-� ,�����•' , ,��, f�� �� -, r�j a;,'? �'� ' � ,x� �+;s �tiu���Q' �'rr;' ,���7 C� �SL�t� �a C t,�� I �5II13Il R�FS���Ti C ` � � �n �'r� ��;,��;:�,:+f;�,'�..";y� Ci�il Bngineer, RGE�3332 , .� � '�,y, �, ..�,�tii>`r "�hIwUU1 Hw"� �����, � , Geo Enwran Eng.ConsuEt�n#s,#�t�. w �d ��:�► L� � •un.� �6'T�����. : 'C7N �t��dd NC1�1f1N:�C1�� : WQ�I,� �'ran��l taat�o!-cJ���-2L��" T�. �t�f'���r At�i��rri�y 1�Iagal�t� R�,1.��6'�rt� 7"r�ll fJt�� Fl�as�e�atbcfiefr!t��I��n�!n�k�y�t�r r���+cvmrt�`�t�d'�.��"��A!1T arr�f ���t�:���?; T�F,��r�ir�i�►��s�tt�i�d�►+�t�r�sp�tS� (S�'.'�c���Sfte+�.�,��th�i''i�raal�1�'�nd Ta� (3�L�'ftram�,►'r���t�lrn�` ����Y�'���rrs�".��n� Thar�As �'`�tr� Nar��rKurt�ar Ph:(,;��SS�i-I� F�x.•�.��"9-41�'�' E�tI.•1c'�,��'i��ol.� R�ee1�f;�y' � ��; ��C ������"�1�. � �c : �""��� � ���� ��t���� �� � , , , , �� , � �_.. -� ,.� ,.z �a,�� �� � ���� a �� �� � � y°"• ,�� � � �� � � � �� �� � �� � � ��� � � � � �� � ��� � �� � � _ g � o,� y � M� � r�us I �y �Kt � l '� 4 $ R � � � N � � � i � � ; � e■ie � � r��� � �'� � M 1*i � � � �* � � �� � � � � � � �� � P.�a � � � � �� � �� � �� '� ���� � +�i ,� ;��( � x ,..�• r-r cunuc m owrtn or cxcs�W � � w�a �[9 f •�i kf � � i E£I�SER�Ci€TER � Y � �• • 4 �� � � � I � � �� � N � ; � � g , � � �� �� �� �� � �� 8� �� � �� � �� "� �� �� � � � ��� ��� � 8� � ��� "y � � � � �� R ',H, M �� � � � � �� � _ .... �� � � � � � � *�����. ��� k �� � �� �� �� ��� ������� � � ' � � ��� �����`� �� � � � � ��� �� ��� g � �� ' � � ���'� �� �� �� � l � . � � � a � ���� ��� ��� � � � � � ����� ��� � � � �� " � � ��� � �a �� �� ,.� , � � �������� � ��� �; �� � � � �� � �� ��� ��� ��� � �� �; �� �_ � � � � �� � � �� ��� �� � �� �� � � � � � � � � � � � � � �� � � � � � � �. � � �u�.a��������aac+� �� .�� '; � � .� � � ���►+�c���o� �r�ar�� �,��� �" � � � � �`� �UUNI�ATMt,�h� �'LI� 8� � ' �•.�. � M��TA���.S �����.� s�. ���J�� � ��►r���s����a'f`'� Ft��lST�REq Cf�tl�E�I�IN��S ��31 �'�� H��.�.� A11�N1�E ��IE�A �AE��, �A�.��C)�NI� ����-'�408 ("�����21-Q��4 �i1�k���i L���" �1�O��l�t)I1C1�S[ ��i21�II����LI1�{�IIl�� c���� ��.IT1C3Ti�Bc�i',�� �tt�?,J�: ��'����Ii�1C'��Il TI"�11�TiY#� Plet� refec �� �r. �uchaa�ret�i's Ze�r af �ui� �.Z, i�n x�rhich he ��tails i��s vv�i�� �rre stRll o��adi,ng�t the subject p�aperi�. ��m Nc�. �: Ai� �a%��s sk�,l�t� 3�� i�,diam�er. 1�N�. 2: Al� Cais�oz�� �hall �t�nd at I�t 2�` belt�v the sh�r zone exr�pt NQ. 2�and 28 �v�,��h are�ot expe�t�d t�}�in t3�.��hear��s ar�.d s��ur�d b�cart���tely in�c�k. 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Dc�€�lc� �nrnaz� an� Asso�z�te,�s, 2t)E?�i, �?r�s�i� �r����ng and �ra�n�ge f�r Lst l3, "�c��;t 378�3,P1ar���t�cci i�iec�up,h ��vrsran 3,D��ier 27,2(�,��nc� June �,2t�}7. Danal� I�m� �ad A��vciates, 2q07 Foundat�c��� Pl��s �d Det�is �"pr th�; Sing,le ��ail� ResideiLr.e 11� Chisc��S"��� �)r�vc,���snand Bar,��l�fi�r�,��, R�nser�May 8,2�{?7 Crev �r��ilnon Y�c�c, 2t�07 �`r�pt��n�cr�I �tmsult�tt� c�f�t�td, I,ok 1�, TrA�t 33$7�, ��9�i ��isalm Tr�x�l Dnve, ��amond�ar��tl�fc�nn�a,i're�,��t?��a {�7-2Sb�1 c�ated M�►y I, 20t��". P�"'��3UT��C �V�EW�I3. ��nald J. t�n�� Assc�ci�i�:s, 2�, Respon� t� t�ae City r��'�3t��zzd Bt�r Cx�t��u� Re�v`re�sr ���t of L,Qt ��, 11����shaal�Trail �r�v�'�`r�ct�ia ���?3 �n the�Ctt��t I��ampnci��t,d���rl.+�kc�bez��,�� ]�an��d J. �nman 8i Assvc�atc�;�D04, ��ganse tn ihe ���y �f Diumanc� B�r��techauc�I ��+new Sheet c�f J,�c�t �3, 1��6�hisholm Tz��..�rxv�Tract N� 378"�3 �r�t�c C�ty saf°�?�amc��td Bara dat�d l���ie,� ]t5,�t�E�. l�onaici J. Inm��A�soc��t�,Z�lt�S, 1 I 96+�h���c�im Tr�!lir�ve,�i�nnd f3ar, ��t�J�an�ary 24,�t��5. EG.I.�, �tl�l4, Res��a� �ct t.�+� City c�f I��a�nnnd B�.r, �c�a�.���uv�cal R��i.��r Sk��t, Lvt ��, t�9� Chi�vlm Tz��1 �nv�, Taract Nc� �7873, b��rr�c�z�€� Bar, Galifcat�u�, ��L Pro���t Nc► {�-AA-032L�F�, d�ted 1����r�, 2{1�4. EG�, 2QQ4, �c��l�Re�rart Clpd�te, Prc�pose�cf i�n��c-�'4m�ly Tt�id�n�,�,ot 1�, 11�fi���tol.m Tfail L�a�ve,Tract fi�'c�, 37�73,I7aam�an� Bar,C����`�mi�„ ���I'rg�ec�N� 0�-�-{�32�,ciat� ��ptemb�r 3, �{�, EGL, 2003a, �az���c�f�vn�ulta�at �1 ���se to C����f Il��mont� �3ar T3�artzx�ent �r�` ering„ �tevt�r ��ee� �1��, 1198 an� ��U� Ct��sc�ir� Tar�i�, C:�ty c��` I�za�nca��d ��, G�l���rn�a, E�T.. t 3�u [l�-A,�- 012�+C�R,�at�d Apn1�1,�t�C3� �.�Ightor� �"'�M • "► � • �9��7�64-18� ECg�.e, �Cla3 b, R�s�z�se to �ty �f Uz�r�t�d B�r ��p�rta�a�rtt of Er ��r.►n�, R��c�r �l���ts 119�i, I�J8 a��t! I200 C��s�lr� Tr��l, �rty �� l�i�mand Ba�r, C�if�rn�a, ��`st� �'.rcr,�ect No t�3-��r,-a12EGi�, d�ter� �,ugust�, 2{3t33,�r���v� ����rnber I 1, �(H��. Hu Assc��tste�, �c , 2(�75. ���pc�nsc ta C1ty t�f T3ta�nond A�r�Se€�te��xcai k����� ShCet, �� l3,T��t 37873, I I9��3�1m Trail, .C���xrr���d�ar,��ltfo:►�u��'ro,�ecC��-�2-7,�ated�e.�mber 2�,2t�D�. Nu As�vciakc,�, �n�,, 2C?{?Ei, Re�►�as�t� �ity of���c��d�3�r Gedt�c�.c�� Revaew Sh�,Le�t �3, Tr�.�t 37873, T��ib�hisa�rr�T�rail,D�ar�s�r�d�3�u, �al'€farn�s�,�'rta,��ct H�-�4$Z-7, ��ted F�ruary�t},�{}�. Ke�th �h��rt� 2fl�, Re�cart s���eoao�ic�,n�l ��tcchnic� ��anceering Inr+esti��ta�n, Lots 1�� T�, t�� and ]S �f '�'cact 37873, ��t�ovelc��s�ti I'rapccty W'es�erl��rf thc T�nt�r��cti�n c��°R�n L�bc� and �hisc7lm '�r�il, �ity r�f T7t�tmond &�.r, �rc�,je�t No. 41'�2-{��,�iated Ni�y 2�,��0 .t�CTit�N: P1�nl���rt rs�tcct�mc�lly�pprc�ved X P1�IR�pcar�n�t�pprov� fc�r r�sons belc��v P1an�L���rt ys��t�hn�c�������r�ve.� X �u�mr"t�'I�IR�rt f�rr r�heck. Ir�clude a suiajc��t���ndlhon� belc��v. c�py of t���r���ew REVt��Y CC7N�MENT�: 1 � sheet,��1 crf ttr�1F€�undat��n�'1�ns,ciet�����lYc,3v tY��p�l�s�s�utd �xt�� �0 to 3S ��ct bei��v the st�e� ���xc an� th�t tl�c d�tt�tca th� shear r,o�e�s c�tpr�te� to b� ���r,tmum c���6 8 f�t it�pp� th�t t�e structt�r�l ��gn is b��d ara a maxir�t�z� r�eptl.� t€� tt�e sh�r z�ne of 2E�$ f�t. fi€�wevec, f�e �rass- �ectic�n€�r� �lie�t�-� o�'tlle t��im�araEd �r�tr�������s �ho�s i��t the ex��tet� �epth tn thc s��r�one ��es up t� �#� �'�t '�e �trc��t�sral d�s�g�n �f t�.� ��1�� Mnclu€iu�g t�i� 1�ter�l r�s�st�ce and ��fl�ctiar� �r�uld be b�.sc� an t�zs meres�e�3 h�i�ht�f the p���s a�vvc khe s�.e�,r z�t��. The�cCc��� ��pth tc� the sh�r �ue t��u�t }�e cvn�rm�c� Gy �h� prt���t �ealo�;r�t c�r,�t�g cor��t�ct�or� �tt�t� thc d�ag�t and l�ngth ca#'th� p�les a.�,���t��l�ccc�rd�z���y 2, T�u Assr�c:»t�' s��c�rt ��t�{15) �nd the �pgr�ved s�te�radi��;��i c���e pl�� nv��that all g����s4�c�uld h�ve a r�ur�rnur�z ernbcdment c���� �'�et below t�� ��ear zr�t�e Hc�w�v�f the �ou�c���on plans n�te � rr�tnfrnurr}�mba�r���tt depth of�(} f�ei t�n what b�s�s was this r�v�s�d`� 3. 'F�e l�t�c�� deflect�o� +��'the �a�les assuz�r�in�movern�t ���.s� s�€�pc�ela�v the r�s�dence vv� r,�icul�te� by �u a�����tes ���n� � 3fr�nah c��am�t�r psIe. T�c f�ur��fln plan� ir�d���te tl�e p�t���r�Il be 24 IS��I1�5 Eti L�1�2212��'. We ur�de��tand khis n�ay � a ty�,��raph�cal error. '�Zc ��Ie diair�etcr qn �� ��a�s ���uld bc ct�r�recc��r��how��iztc3�rlt�aeter ss�r�i�usly tect�mmend�t. �.�vtevve�by � I��te �un� 15 ��07 Jason D �.crtzb�r�, CiE 27I 1 R.�tcw�tl�y ����� D�te J un e 1 a ��C�'T �h►lrp A. F�uch�at��l�,CE� I'7 S� 'A _ � .. �..�(��1k�1� � � ��� ���� ���� G�CITEC�INICAI.AiVCI ENVIRONMENTAL ENGINEERING�(}NSULTANTS, INC I240 N Wan Buren SC Ste tqt, Anahe�n�.Ca 92807 • (7I4��i32w�1�? • �x�7y4�F►32-319� May l, 2C}47 Jvb�� (�'�-2�6G l Mr.�i�rinder Kuma� 13535 Flatbush �,.v+e�nu�+e Nor,�ral�c,Ca��6�0 Subject: Geotechnic�l�a�s�aMtant �nf ft�cord Site: Lot 13, Tract 37873, 119�Chisholm Trait Drive, Diamand Rar, �alifornia References: )} Hu Asst�c�ate�, Inc �ec�mb�r 2�3, 2tI�5, At�d�nc�um tc�Respc�nse Get�techn�cal R�v�e`v S�teet c�ated .�anuary 28,20(l5, Lc�t l�, Tz�act �787�, 11��s C��s�t�Ir�t Tra�[ Dr��•e, U��mvnd Bar, Ca 2} �nv�rc�r�rnenta[ Ge�te�k�r��ca� L��r€�arat�ry� Tz�� ,.I�ly 9, 2f)43, Respan��t€� c�ty c��'�1�ar��r�d�ar, Rev��;�v �heets, l 19�, � l�� a�d ��C}�}����h€�Ern Tra�l, l��arndnd B�r, �a 3�K��t�W Ehlert,.�129I00,Re�rart c��`Ge�lag�c a�d Ceatee�n�cal �r�vest�gat��a�,L�t 1�, 1�, t4 and �5 c�f Tra�t 37873,Undev�:lopet��rpperty�vVesterly c�fthe�ntersect�t�n of�t�o Lobos and Chisholm Tratl, Daarnt�nd B�r, +�a Dear Mr, Kumar: Th�s letter is suhmrtted to notifjr th� �ity ofDiamond Bar that aur firrn �"reo Environ Eng, Ct�nsultants, Inc has been ret�trn�d}�y yau tc�s�rve as s�als engineer af re�ord w�th respect t�a al1 �ec►t�ek�n��al ��forEc w�th�r►c�ur purv�ev� tc� �e�erfc�arrned�����n th�s�b�e�t s�t� T?�e cs�ttclus��ns an�i r�c€��nrr��°nc�at�c�ns ct�z����t�ed �t� ��e referer���d r���rrts h�tv� b�ezt ��v�ewed anc� acc�pcecf by��r cc�rn�an���bject ta�r�t1�EGd�iflti lf1�Fl��l��t� t�11C1t1�Ct31�S�t'LIC�1�� W� r�s�rve the r�ght to mod�fy exist�ng recommendatz�ns, �f fie1�3 conditions are found to b�d�fferent tl�an those co�ntained 1n the reference re�rt All future geoteehnical wc�rks wil) be perforrne�i tn acc�rdance w�th the referenced suals repo�t and the Crty of Diamond Bar ,�.�`rrad�r�� code and spee�ficatrons 4 � . APfr.N.Kurr�ar,Lc�t�i3,Tra�t 3T�7�,1��ti Gt�fsholm Trai1 E�r1ve,Riart�ond�ar Page�2 Jab Ato.�7-288� Thts opportun�ty to be af �erv�ce �s �reatly a�gzec�ated if you have �.ny quest�ans concern�ng th�s, please call a�t your conven��nce Sineerely, ,�„�„�, - � ��a E�vir�a�n Er��. Ca��ult�nt�,�n+c. ������ss���,�t r�����i������ �� F���� � � .� ti:, �'� P1t� �i33z2 � ��3G1(}�` J be Ma d ��� � ,, � Esrn��l Raste�� � � r r t ,� ;� F s� ent �a,•�fF�,�.�`. c��'�;�`� ��v�l Eng�neer, RCE 4333� `,���.`' ..'�--l=%"o�"� YYrrrQyt�vES .����I"rl �eo�nv�rar��ng Car�suttants.I�c �-� ' r� a�r� �EC)TE�H�I�AL �"V'�E"'�V SHEET �EIGHTCII��1�I1 A�S����.�T�S,IN�. ���E�',��:D F(�R �E������ ",�,�� _,�_� �;�:_,� CIT��F I�I�iMON� ��R ��i� :� � : . ;r r' � I��P�R'IsNi�NT C)� EN�G����RING �[1�� ��� I 3 P� Z• ��� P��ect No. 291 t�1 C�-��S Tra�C�s} 3'78�3 Lot 1� �ate M�h � �4Q�i Par�nt'I`r�.ct L�,cat��r�Iflwner N[r �azznd�r�umaz S�te,�dt�ss 1196�h�sh��zn'I'x�l Dr�ve �eol���st B�L L��v�I�p�r �oa�s E��iane�r EGL E�g��e�r/Arch L�+anal�i 1 I�an�a�i Assoc it�V��°W C1F; C�ad�n�P�� Nc�, �irealog�st Repc�rt�s�Dat�d St���s Repo�t(s) I��ted � X C��lca��and Sc��ls�e�art�s} �ated F�b� 2A 2��}� C�t��r Dc��al� .� Inman � Assnc�ates, 2���, .C�esp�n��� the C�ty of T����n�nd Bar ��technic�l R�v��� �heet �f L�� 3 3, ]l 9f��l��shc�lm Trail�r�v�, Tract�1€� �7873 an the C�ty�f T�iam���B�r, dat��C��tt�����,2004 Donal� � Tnrna�n � As�c�ates, 20t��F, ��spon�e �c�the ��ty of D��€��d Bar��otechn��� ]�ev���r �heet of Lvt ��, 1196 �h�shalrn Tr�I l�r���,`�"ract N� 378�� �� �he City��`I���c�nd Bar,c�.�d Uec��k�r ��i,Z�Q4 Dona�d J �m�r�&Assvc�ate�,��kQS, � l9f C���holm Tr�.rl Dr�ve, L)t�c�nd Bar, dat�d.J�c��rgr 24, ��}€�5 ECI.j, 2004, Resp��se to �he ��ty v�'L)iamt�r�d �ar, Geot.e�hz�z� �eview �heet, Lot ��, 1 I�b ��rshc�lm Tra�J Dnve, fiz��t�1c� 378'73, T�z�unca�d B�, ��Iifomia, E�xL ��r�,�ect Nv. ��-AA-Cl32UR., da�d I�ecemi�er �, 2(�Q4 EGL, ��}�g ��a�l� I�e�c�r��1p�ate, �r���ed Szn�le-�am�I� Ites�d���� L�t 13, ��9�i ���sk��alm Tr�i� I)nv�, �r�ct �elc� 37873, �l�amon�i Bar, C����`t��taaa, EGL Prc�,�e�t AI� (}�€-A�.-{�32U,d�.ted S�t�mb�r�� ��{}�4 EGL, 2��3a, C�,�,ng� of�t�nsultant �`i€� Res��r�s� tn C�ty t�f�iamc��.d ��r T�partmert� c��`Et���neer�a�g, R�v�ew She�t� 11��� ��98 and 1Z(l� �1ai��►Irn Tr���, City c�f I����r�c� �3�;r', ��I�fc�rnia, E�'iL k�r�a��t T��r 43-AA- t?1�E�iR,dat�l Apnl �1,2003 EGI., ���3b, ��s�nse to C�t}f af l���rriond ��rr �egartrnent c�f���anecr�a��, Revte�v 5h�ets I.I.��, 1198 ar�c� ���?C1 �����;t� Trail, C�ty t�� �iam�r�d ��r, �aliforrti�, ��aL Pr�J�ct Nt� �3-AA-���E.C'aR, c��ed A��ust 8,��[}�,as receive���p��mbear 1�, ��3 � ��ig���n � ,+r� �.� 2�1{�l��-18� �u Assvc�ate�, Inc , ��}(l6, Res��nse tc� ��ty c�f I7aamonci Bar ��#�:ch�ucal �e�ew ��eet, ��t 13, T�e��t �787�, 1196 ��solr�Tr�rl,D��nnr�d Bar, ��l�fc�rnia, Pr�aj�ct HA-�4�2-7,d�t�r� Feb�y�0,��?06 ��ith ��l�r�, 2t�1� I�e�r� p���alo��c ar�r� ���t�hn��� Er���ne�rin� Ir�ves#���t��n, L€�t� I�, I�� l4� an� 15 �� Tract 3`7873, t�r�devel��ed Frc��rty �'csterty �f th� Int�r�ect�c�n of R.��a I.,��s a.r�d �h�sa�rr� �'r�11, �ity a� D��znort� B�, Pr�,��ct Nc� 417�-�tl, d�tec� I�Cay 2�, 20U{} ��T�UN. Planik�e�art �s�entecY�n�ca(ly ap�araved Pl�Repr�rt a��t ap��roved f+��r reasc�n��ela� �Pt,an/i��€�rt �s ��ote��n�cally��proved Subm�t planl��ptrrt fc�r r�cl��k Inci�z��a �ub,�e�t to �ndit��ns�lovv cc��y of`��s revie�r ��EW �Qh�E�iT�: 1 The �tru�turaJ en��z�eer s�ould cr�n�arm t.�a.� the 2 5 �nct�es ca�' deflec��c�z� far t�e c£usst�� nQt� by th� ��otec�.n�ca1 c�nsultant �s �ccce��tabl� �. Th� �eotec�n�ca�cc�nsult.�nt shcaul�i rev���r the siarc���ura�p�at�s and�alculat�s�ns a�d w�t si�an,d st�rr�p the pla��t�co�.firm the�r recomm�ndat��ns have been ct�rteetl�in�o�g�ratet� �ttta the des�gn 3 '�e geotech.nacal cansul�r'tt rnust � pr�sea�t dit�n� cor��z-u�tiar� �tt� cor�firm con�tt�t�ns � as a�tt��pated. A re���t o�`gr�d�ng ar�d�o�str��t�an shr�ulc��e sub�n�tt�d at t��co�n�����on��'�r�d�n� ....,,� ._.; ......., _ Rev»�ed�ay J � ,,,.. Dat� �Viar�h$, 20�� _... J�sor�D. 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I�� �& Assoc��t��, 2004, Res�c�r�s� tc� the C�t�of Di�mond ��rr�t�ch�n�cs� ��r��ww S�eet r��'I�t 13, 1 l}���tsholaar�Tz�l �tive,Taract I�Ic� 37873 in th� Cr�y�f�77aanrrt�r��i Bar,ti�t�d T�ec�ml�r ��,2t��� �ona��i J' Inman �Assacaafies, 2{10�, �1��r�l��shnlm�"r�.i] �3r�ve,���rr�c�r�ti Bar, dated ��nuary 2�,�(}AS �(a�L, �t�t�4, �espc�z�� to the �ity of�3iazx�on� ��rr, G�at��h�aic�l. P�evi�w ���;��s Lat 1�, i 1�� ��isholrn T`r�il Dnve, `�`r�ct No 37�7�, �iamond Bar, �altfort�a, E�� Pr�yect Na �4-�►A-O��UT�, da� Z��cember 8, 20�?4 EGL, ��}�4, Soils F���a�art t,Tpd�t�, Pr�t��d Sin�le-�'am�t�Residenc�, �t 1�, I I96 C�us�ta�m Tra�l Dnve, Tr��t Nv 37�'I3� I��arnond Ba�r,Cahfo�a,��L�Praject�i� . {14-�►�03��,d�ted Septez�b�r 3, 2t�34 ��L, 20�f3�, C�az�.g� �f Con�ult�t �rad �.�spc�ns� tv ���°y vf Uiamcand Bar D�gar�m�nt��'Engine�r�r�g, R�view ��a�ts 119b, 11�8 and 12�{} �h�salrn Tra�l, ��t�c���iamcmd �ar, Caltforni�, E�L pro,��ct No 03-�A- �I�EGR�d�t�d�lp�� Z1, 2U�� E�L, 20�3b, �.�s�nse tc� Cz�� t��'�iarr�onc� �t� gepartttr��nt af En��ne�,'tr��, Rev���r �heets 1 l�6, 1198 and 1�00 C�i�vlrn Tr��l, City c�� �aamc�nci Bar, ��l�fomi�, �tarL Pro�e�t �ca ��-AA.-Q�2�t�R, �iated �,.��ust $,2{��3, �s r�ceiv�d ��gt�mber 11, 24{}� � Lei�htart � � 2��Q16�-188 I�,e�th Eh1�rt, 2f�E}0, F�.epe�rt t�f Ge�lr�,��c �n� Ge��hn�c�l E���r�eenn� Investi����on, Lats 12, �3 l� and 15 �f Tra�� 3'�873,�'ndev�elc�ped Pr�pe�y��st�r��nf the��terse�t��a� t�f R.�r�Lc��os anti��ust��m Trail,��ty�f D��znond B�r, Frr���ct I�I� 41'��-�7�, dated I�ay�9���Q. AGT��N: P��a1Re�€att�s ����ch��caily a�proaeci � �'1�1Re�� nc�t a�p�aved f�r re�ns��a� Pla�/R.��art��ge€�t�c�ically appr�v�1 X �ut�rn���'IanORe rt for reckt��k �cl�tde a sub,ect t�eesn��t�ons�low c�arry fl�'�s revi�vv. �&EVI�V4� �[}1�IlVi��'+1'"C'�: 1 It t�aes r�c�t ap�ar ap��ropriate �� u� pass�ve f�rce re�i�t�n�� abc��� th� she,�r z€��e, as s��vun c�� Plate 7 Pl�� expl�r�v�y pass�v�z�s���nce �s �r€rv�cl� abave �e s�ear zrrn� �vher� the calc���,teci fac�tor t�f�af�t�r ts less thart 1 5 (�'a=� 1$�, �ar r�vfse th� a.r�a]ys�s (�nclud�r�� later�l deflectic�n), �s appz�pr�a�e. "4"��ll lat�r�ll d�fl�c�it�n be ttal�rable �n th� fc��nda��c�n an�i���Id1r�g r�thout ti�►e us�of lat�rr�� re�nts, su��.��cieadmen`� �. Item � nn P�e 5 ins��cate�that �.�`�ce ��ter �r�ltrat�ar��vill�e�eciuc� �a the s�ear z�ne. �Tovveve�, what w�l,l be the e�'ect r��' �z�rigatic��"� It is �u�.�lean c��w Su�nu�aryl�r�nclus�c�n 3 �n th� bc�t�orn ��" Pa�e � ��l�mir�atio� af#h� structt�aral sl�.� wit� add�t«� of g�fabn� rr�er��r�e) u�i�l m�tig�t� the ptat��ti�l latear�,l �efle.�t�c�n �.nd d��°erent�a� z�vver�eni o��h� slab and f���zadat�an �ysterr� �t seems unreal�s�ic �� e�t a genfal�c mcmbrane�aelt�w fr�sh��e tt� si�tifican�ly r�c�uce the�mou.tx�t��"wat�r ar�ac�in�tbe sh�ar zt�n� 3, �►�ditional �c�nsid�za��an�I] l�e ne�€i�d ���he���cent pr�pe�y{L€�t 1�� �s nt�t t� be s�bilrzed,�d��ussed at the�attazn�f page� �4. ��nstnactrc�n of��rdsca�rsr oth�r"nc�n�uctur�!" ��nprc�verzaent�may l� pl�ed with�� rest�rr�c#ed us���as, hc�w�v�r, tl�.� �wner must provi�� a r�w��r�r rele��n� �the ��� �f li���lsty ���t�ld ci�m��� c�ccwr �c� the t�rtprovements �n exarnple af�e w��ver �etter m�y�e o��sned frr��n the C�ty � Prc�vzde a �te��nt in ���vr�anc� �th �eciz€�n 111 �f the Lca� Ang�les C�unty �u�ldi;�g �ade `I'kte statem�r�t mus�be sup�rrt��y app�c�pnate d�ta b Th� �eot�c�uc� co�sulta�t r��a�t z-ev�e�r and �i�n the gz�adir�� �l�.nns �d c��s�ns p���,zas � ca�k"�rm the�r recamm�nr�at�€�ns h��� beer�c�rrectly�ncc�r�rate�d��zto the��ans �evi��e�b� � Dat� �"�nuary ��,2�{76 „� 3asc�n I1. Hertz�r�,ktC�61375 Revi��red hy Dat� Ja�r� �� ?�0� �'����p A B�chaa���i, ��G �71� _�.. ����1��on �,-- - _.�� - - � i ti � �' � � �OT A� l �. f � d � �h��� �� � . ��V e � r $ �9�a���r� /��' , , � � � i RESPONSE TO � CITY OF D3AMOND BAR , [ GEOTECHNICAL REVIEW SHEET � ' Proposed single-Fam�ly Residence ; f Lot 13, Tract No 37873 ' i 1196 Chisholm Trad Dn�e � �� Diamor�d Bar, Califom�a � -;�,.� 1 � � �, .n�, �_� ,�, s 'v �,s � . � 1� �� �yy �v L� � r for o, �� � � � �.1 Mr. Nannder Kumar I � 13535 Flatb�sh Avenue Notwalk, Cal�fomia 90fi50 � i ! � f iz � . � Project No. HA-5482-7 i ; December 28, 2005 � ; , 3, = Y �.� �.�����..��t�� 1��• � ��CT�'�CIIIITICAL I Ll'�YIRC�1�.�`NTAL ENGIN���N�r G�NSU�,TAI�IT� t � 119.55 F#I�d�RA F3C)�II1 + :�ANTA F£5Pl�I�C�,�"s.�A£i�167d-22{7S ;s,TELERHQI+1�{5Fi2}69fi-64�62 (5�"s��#3�3�6114 FAX{�'}69$-�771 t � ��G�i'Tl����$, �Q�� � j ��-���� � J i � i �tlf ��flf�d�t"�LitT1�l" � � 'E35�5���t.���}�e�:�eClUe , I�prw���, C�IrfQm�a 9C165t� A � � SUF3���T: �tdd+�rrdum t� RespQnse t�e�at����lcal R�vlew Sh�et date�d,�anuary � � �8,2���, by �.�igF�t�n and Asseac��t�s, inc. Pr�pc�sed �l�gl�•�ami�y R�std�nc�a � �,ot 1�,Tract N�. 3?�'�� � � 11���hisfi��aim Trail �r�� Di�t��nd B�r, Gali�vrn�a � � REFEREN��: 9. K�ith W, �hlec�, �may 29,2�t3, �.epart c���Geo1�g[c and � ��otecf�r����l �r��in��ring �nv�sti����c�rt, Lra#s 12, �1�, ���t�d 15 of Tract�7H73, Unde�r+��rapr�+d Property�t��t�rly vf t�e l�t�t�se�ti+a�n +�f Rlo �.obvs and C��s��lm Tralt, [3��rr��nd E3�r, ��C�f�rr�la. I � 2. L����t+�n �nd Assoc�ates, ln�., ��n[�ary 11, �q��, G��atechnical �_� Review Sh��t for�ity of aiaim���! B�r. �. �t�viron�rter�tai Cec�teGhtto[+�g� Laboratc�ry� I�c., IA�ri1�'1�200�, i � ��an�c�f�ansultar�t ar�d l�esponse tv C�ry c�f C3aim�r�si Bar, Departr�ent Enginee�ri�g, F�e�rl�w S�e�ts, 1196� 11�8 � '�2�a Chist�t��rr� Trail� Gity�f dt�mc�nd, Ca��f�rnEa, EGC.Proj+��t Nra. 03- � � �►-t�'EZE��. 4. l.�i��ton and As�c��ates, lr��., ,�une 1�, ��Q�, ���techntcal ; f �.��iew �t��fQr�ify af C�I�rrt�ttd Bar. � �5. Environrr��n�l t�eot�chnt�le�gy Lab�r�tory, Irt�., July 3,���3, { � R�sperns���City���t�am�nd Bar, C���a�rtrnent of Er��in��r�ng, �- � R�v�e�nr �F�eets, ��f��, "['�9� �& 1200 �t�[�hotm Tr�i�, �iiyaf L�i�mon� �ar, Cai[�c�r��a, E�L Pra�ect �r�. q3�-�12. � , . 6e ��:�gt�ton ar�d As���iates. ir��,, .Juty 28, 20��, ���te�hr��c�1 R�view �kr�:�t for��#y af[�iarr��nd Bar. � [ f f . � > � PiA-5�t82-7 -�- T7ecember 2�,2�I�� � r � 3 � , T. �r��r�ronrn�r��l G��#e�Mnc�logy �.ab�rr�ta��� �rr�.,��gu��t t��,2�t�3, Respan��ta C�ty of l��amar�d �ar, I�par�m�nt af Engineeringr ` ' Revl�w�heets, 9998€ 'i'�98 �,"l�U4 C���holm �'rail, ��ty of 4 i �iam�n�C B�r, C�[�fornia, EGL Project Nc�. 4�-�#�'J1�. � : �> I�el�htvn art�A�sacl��s� �nc.. ��e��ember 2C, 2�3, Ge�#�hnic�[ , � Review �heet far Clir��f Diam��d �ar. ` � � �. Ert�r��onmer�tal t��ra#ec�r�cal�gy Labvrat�ry, lnc.� �ept��n�ar�, 2Q�� Soiis �eprart U�xlat�� Prc�po�� Single-�arr���y Res�c�r�ce, � � L.�t 13� 'f 19��h[shairr�Tra#f �tr�v�, '�ract No. �?873, �iaman�i B�r€ ��1��`arrtl�tT E�E. ProJ��t No.44-�A-q�2tl. � � �t�. �etght�an ar�d As��t�tesE �n�.� C3�c�b�r�;2804, Cs�at+��hnical ` R�ar+�ew�he��for City s�f a��m�nd ��r. � �t1. En�rlFanmerttal Ges�techr��lag� L�baratnry, Ir��.� �ecer��er�8, ' ` 2i��4, R�a�p�arr�e tr�C�y of L�iar�tc�n� Bar f��vi�w��ee�, LQt 13, , 119�i ��t�hr►�m Tra�i I�rivef Tr�ct NQ, 3T8T3, Iliamond g�r, � � Califorrt�a, E�L PraJ�t No. 0��1A-(13�11R» �2. L���htnn ar�c�A��c�clates, [r�c., �Tanu�ryt 28, ���15, +�eot��t�nical � f #��r�Iev�r Sh��for City �f E���mt�nt� ��r. t D��r Mr Ku��r I l Purs�aar���o y��r r�c�ue�t,vv� �av� r��i�d �h�refer�r�c�� repvrt� �r�d pr�par�l th�� ad�end�r� repc�rt�r� r�sp�nse t� the gec����hrncal rew��r sheet�at�d Jar�u�ry�8, 2Qt}�, ��� �C@�I���� E)}1 LE�IC„�I't�f3f! fd�Et� A�.aO{`,Ft't�E3S� Inc. fi�r th��rapose� sin��e-famdyr r�siden�io be la���d at 11�� Ch�shcalm T�-��I Dr�ve, �n the G�ty of�?�amo�td �ar, Gt��nty�ff L�s Art��l�s, �af�ft�rtt[� � � T�� pro��rty, mciu�tng L4�s 1�, ��, �4 ar�� 15,w�s �na��a(ly mv����r�ated by K����1�t Eh��rtr Can�ulking E�►g�n��r�ng Get���gis� ir� May 2��0 (R�f�rence 'I�fpr� pr�pa��d s�ngle-family � � r�ssr��nce dev�#opmer�� Th� res�cien�wa� �la�ne� �o be cc��stru�ted on �.��s 14 �t�d '15 RIc� ' � �anstr�ct��n pfans w�re pr�pared at t�� t�m�the �p��t was pr�pare�. The re�rt vu�s ` rev��+ved �y the i.��gh�c�r� and As��cia��s, t�� ��t�r th���ty r�f d►arnond B�r and �d��t�on�l , �nf�rmat��n+��s req�tes#e� �r� th� r��view st���t c�ated Janu�ry 17, �t?�1°1 (R�ference 2� Sub���ently, Enuironrr��nt�l ��techn�logy La�ior�t�y tar�k�v�r the �r�a���rn 2�C�3 �nd pr�p�red �t�e r�;spr�nses ��th� G��y of C�►amnnd �r �Refer�n� �}, After��vie�+v t�f the r��p�ns�s pr�par� by �r�v��onm�r�t�l Ge���chn��cagy L�t��atc�ry, add�tr�nal �r�#f�rrr�tian w�re r�quested by�ity�f D��mand Bar�� th� re��w l�tter�at�� June 1E�, �0�� {R�f�r�r��e 4} ����V���11�F J1S{.,� I ' , . ��5^.�'��^� "'"�" �}�`if.�l���������� � i s � I _ ��tv�rr�r�m�rt��i ��r���c�r�v�vgy I.�'l�ratvey��ter� p��p�red th�r�;spor�s�s�o�he ��ty v�[���mt�n� � � ��r t�r�J�ly 9, 2t�'33 �Refe�er�ce 5}, Th� Ctty c��}i�mr��d B�r��viewer rec�c�est� ar�c����vr�a� �r�fc�rm�tic�� �n��� r�;u��:w sF��t dat��d.��iy�8, 2t�0� ���ferer�c��} � r � At��m, Envrrt�nmental Geotechno�ogy L�b�ra#�ry pr�pared the r�sponses to the C�ty of ' ' Dr�mvnd �ar�n Augusk 48, 2�t1� �Referen�e 7) The reparts and respanses were revievv�d 1 r an�f appraved by the City of Cliam+�nd E�ar on �eptember 26, 2003 {Reference 8} i '�` Aft�r'd�tad �radmg plan for Lot 13 is �vadable, Environm�nkal GeoteGhnology L�bnr�kory t pr�pared �n updated so�l repart on S�ptem�er 2C?Q4 (R�fer�nGe 9}far the speci�ed lot�nd 1 i prapcased development. �he repart was reviewed by L�ightan and Associates, Inc far the C��y � af D�amond gar and additional infarmat�vn was r�quested m a reulew sheet dated bctob�r�16, , � 2004 (R�f�renc� 1�) < < 5ub�:quently, Er�v�re�nme�tat Gec�tec�nolQc�y L��r�itvry ��pared t�e �espc�nses tr� fhe��fjr R�v��w�r on Gtecember 8, 2flC14 (Refer�e��e '�1} A�ter reviewe� fiE�e res�c��ses, ad�rt�c�na� ` �r�t"c�rm���r�w�,s �qc��st�d �y��ty v��}��rnc�r�� ��r�� th� r�vt�w��t��r dat�i �l�n�ary 2�, ��t5 t � prepar��� t�y Le���tvr� ar�� Assnciates �Ref�renr.� 1�} � , "f"tt� ��rpca�r�f t�Es a�d�ndurn repc�r��s tt�r��pt�r�s�: th�; r�:vE�w l�tter�ated .l�nuary 28, 2t�{35 i pr�par�� by Le�ghtvr� �nd Assaaates fc�r i��am�nd B�r�it�r. �1ta a�dEt�t�nal subsurf�ce inv�est�g�ti�n �� per�tarmed for th�s addend�m repc►rt. � � A v�s�t to th�: subJect prapetty was made by� repres�ntatiu� af this office an iJctober 13, 2C105 ta t�b�rve th� pres�nt cc�nd�kions of the sate. I# appears th�t tt�e site rema�ns m about the same � � condit��n as �t was in 24QA�, Bas�d nn th� �urr�nt des�gn plan pravided by Mr. hlanr�d�r Kum�r, the proposed desrgn schem� is stil! th�s�me as it was shown in th�: updated st��! reparks prepa��d by EnvirQnmenkaC I � Gecakechnal�gy�.�baratary, dated Sepkember 03, 2�C}4 (Reference 9} The s�te pEan and geol�gic map �s shawn on Plate1, the gevlog�c sect��ns �r� �hcn�m ar� Pla�tes 2 thrc��gh 4 � �3 RESPC}��E�t} �E!'�TE�HN�t�AL REVIEW�NEE�' Item i � ' , Unbal�n�ed Lat�ral �orce I Ca��ul�tions were made ta d�kermin� the unbalan�ed I�ter�N#'+�rc�� �us�d by the block failure aCong the shear�c�rr� aboa�th� proposed c��ssons �s sh�wn+�n Pl�t� � Th� calculatians present+ed c�n �lat��i �nd�c�t� that the block failure �Ic�ng th� sh�ar zone wili generate an � un�alanced la#eraN ��rc�s af 32 and 17 kips per Imear faot an the Iawer arrd upper rows of the c�issrans, respect�v�iy w�th a tot.�l thrust force nf 48 8 kips per I�near�caat r i t HU AS�{?CIATE�, iN� I I � � HA-�4�32-7" -d- Dec�r�t�er 28,2t�Q� � � � � � The curr�r�t ri���gn p1ar� shov�t�at th� prop�rse� �tru�ture��t� �e supp�rt�d �y twenty-��e {21� �ai,��ns a#th� Inc���c�n� siu�vvn car� P�#e 1 V11e ��v��dde� addihor�al s�uen �T}ca��sor�s ` . {Nc�� 8, 23��rcaugt� 28)�� pt�rkior�s�f the e��t side c�f th� �c�u� a��st�ll�v�t�crt th� �hear zctne r Th� ��ssons�re three f�et ir�cicameter�n� ��ra�ed��8 fe��can cent�r in tF� r��arth-s�uth ' d�r�ti�n, ��r���e[t�the sEap�f�c�: � ; CI�ptF� �►f�a�ssort �m�edmertt i , � Acc�rd�r�g to t�� fc��nd����n de�i�r� re��mmend��t�ns �r�ent�� tn th� ��ti Upd�te R��rt dat�d Sept�rr�b�r 3, 20(�, Prepar�ci by EG�, �Re�f���nc�#�}, `�h� ca�s,��r�s sho�ld ��fc��r�d�i � ' �t� m�n�mum �f 1��Fee�belav�th� s��r z�r�e and m��nka�n �t m�r��m�tm h�r�z�antal �tba�k�r�m � l �he �d�a�nt desc�nd�ng slo� fac� p�r curr�r�t bt�NCd�ng ca���f�nda�rris' ' Ba�d on ��e �I�o� Sta��i�y R�na[y��s#4 pr��ent�� �y �C�, #he f��lure p[ar�e �omb�nad c[rcufar i fia�lr�r� and ai�r�g bed��r�� pl�n�ws���� f�av��f�ctor-�f�safety raf 1 9�f�r st�t�c and 1 32 f�r ���sr�ic ��dir�� ca��d�t�c�r�s. Frc�m ihe��techn��9 er��neerm���pe��, ct�s our c�pin��n��at t�e � ' Iat�t��m crf�he p��es �ha�l� �e ea�kended at�east be�trw the p�ter��a�f��lur� �lane �ssess�n�a : factc�r-b�-�fety of 1 5 Fr�m the crc�ss s�;cti�n ,�t��on i��ate 4, #�e westem row af�«sc�ns �hoc�id �� extended at lea�st��fe�t bel€�w t�e sh�ar zc�ne. In any r..��, th� c���son �epth � �h��ald n�a't � I��s t�ar� �e depth r�qu�r+�ci ta r�s��t the I�t�ral E��Crr r�vrn��t by fnct�ot�s�r � pa�s�v�res��t�n�e as d��rn��ned �a�r the prc���t Str�ctural Fr�gir���r L�tera[ Cl�fl���an a�'th� Ca��ss�n � � Bas�d on �e sla � �tab��� anal s�s resented � ECL t�e or#�or� �af th��It� e beiow tF�e F� � Y p Y � P � �rop�s�d ca���ns w�su[� have a f��t�r-of-��f�:�fe� fha� 1.��s r��u�re� Fr�r�ta�rl� sEcape .�� � � �nd�t� prev��u��y, a� �mplet�f��lur��f th��1�� ���w#he ��sse�rts t�very unHk�ly It is � ���cted t��t r�nly the n��r surfa� maten�� be(�w the�aa�s�crr���vill mav�and t�� k�wer port�nr� af��slope rnate��� w�ll rem��n �nt��ct Fr�r purp�a�es 4f s�l�ier piles �ie5��r�, w� h�ve tak��a � � t�onserv��ve valu�af�aa�siv�ea�#h ��sure�af�00 ��nd� er s �a�re er fca�t of de th to a � rr�irnur�t of 1�,�IQO pc�c�n s per��uar�f�ot f�r dra�c ai�d�pth o�`Z��eet th��urfa� � e e��h Qf shear zc►ne The �r��lc�wir�c� �lcu[ated resu�i� an� d�t�d c�lcufatEor�s are � I( pres�nted or� �late 7 � E Ur��alanced L�terat LvadlP�l� R�ss�ve Res��tanca Fc����IPiI� TqY�1 ��rc���r P�le {��Rs) �k�ps} {k��s) i 48 S �€� �p�1e �p�c�ng� = �7�x 3 (��le d��rr�eter) � 187 9 � 330 4 2��.5 � , � � 1 � � I�U ASSC)�I�.TES,TNC , � }�A-�482-7 -� I?ecemt�r��,20t15 � �.at�ral det�ectiorr t�f th�ca�ssan �s c��culat�� b�s�d �n th� me��cxi d�veE�p� by F��e���nd llA�t�ck itllt�er�r�lc�la��ng the l�t�raf ��fle�tis�n, �t �5 assumed �F��t tY�e tv��!forc� ts a�ir�pn ' the�restem (d�r�s�c�pe) row t�f��ssc►�only �1g�m,tl��� �s a rnr�re cc�n�ervatw��ppr��ch as , �arrf�or���f th� ur�balar���d �a�ra!farc��r� to�e tak�r� by t�e r�ws af ca��son�ast�f tF�� ����sc�s Th� r�s�lts �f d�fi���tre�n c�i�lat►gn are sumrr�ari,��t� ��the��Ile�wtng t�bl� Deta�l 4 �alcul�tions ar� �r���nt�ci �r� Plate � , . � E F�elat�v� i�t��le�f�ar� de��ctran ��nd�ng �endin� F�rl�: ��a�! i,.atsrai t�[c►m��t Ivtom�:r�t St��;ss due�o du�to 'i Q�ameter INadulu� �ad e��e#a dc�e t4 j (�nch�es} {ton�') Factc�r,T {�,�s} ��rc� �9nm�n� ���� Mor�errt �fe�t} {�n�fi��} {rr��e�� k� -fc�t �Si -��at � , i d ° 3� 5p 7.(�3 1�7' 9 � �193 0 117 101f.S9 ��2d�� � Catc���k�ons �ndicat�d that th�t�tal�f�flectran due�a un�al�nc�d [�tera�f�rc�ts 1 21 ��che� � As fhe�a�sst�ns�r�tt� E�� ti�d v�r��h c�r�de t��r�s ��t b�th d�r�ct��ns, �t�s ���et�i th�k the � �m�unt�f c���ulat� de���c�n w€�u�d b���i� to �ke�re �n khe �tru�tur�� des►gn. , � ftem 2 � ' The si�pe sta��i��+�r���y��� pres�n��d �n t�e r�fer�n�l rep�rt {R�fer�r�c� 7� md�r�te� #hat�e � 3 slap����w��e c�rsst�r�s �rauld �av��#�ct€ar-��f-saf�ty�f '[ 1� S�r�t:�;th�ar�alys�uv�re �s��m� the sl�p� r�nat�rial was t�mp(�t�l�r satur�ted �� r�al�t�i t�e ��op� t`t�at�r��l w�ul� �e � par��a�ly s�t�rat� tr� mvst�f��te time In�ddi����, �fter��te c�r�str�ctrc�n �f t�e �art��sc��s c:t�mpi�t��wn�� �rnprov�d sr��'a�dr��n���, it i��r�tictpated th��surfar� �€ater �nfiltrat��n �r�to��� �h��r zone wili be redu�ed kt��s t� �r�cr�ase t�e stabil�ty vf tF��s�te, H�nce. � c�nplete fa��ur� � � nf the portttan c�f sl��e belt�elv the ca�s��ons �� ur�likety S�m� la�era�d�sp(acer�tent rr�ay c�c�r r = eftt��r �nder�t���c ar �e�sr��c Ioa��ng con�i��or��a� r��ort�c�. � � ;�s the�rea belr��the �,rf��+nr�u3d hav� a fact�r��r�-saf�ty le� th�r� 1 ��s req�ir�d for�t��ie � � sEcape, �t�s re�cammend�d �F�at th� are� beyann� �e prvpas�d��ss�n� ar�d v�r��t of tt�� sh�ar zone �e des��n�tec� as��t�st�rct�� 1�s��lrea"�s dep��t�i �r� ���te 1 The 'F�e�tncteci Us�,4re�` � c�n t�n[y t� us�ci f�r��purte���t or nor�-hab��ble �tru�ure p�rpv�es Na [��bita����tructur�� �re all�wed t� be Ivcated wNt�in the "�estricted Use�rea" ���eci vrr tt�e sir�pe�tab����y analy�e� p�s�nt�d zr�the r���r�n��d repor��, a c�m���t�fatlure�f sl�pe r�r� Lot �4 �Is�ne �� cc��s�d�r�ed vr�t�ke�y a�th�sid�farces b�twe�h �t�e l�� may prav�d�i ad��ta�r��� res��t�nce tc� dc�wn�lc�pe mo�emen�s� Et is aur understandtnc� that th�deve�t�pr�r�t�f �he n��ghbt�r !vt ��.a� 14��� m ��e prc��ss�or r�view�y the ��ty a�this pv�nt it�s a��t�med ttt�t svrr�� rt��t�g�t[r�g m�a��ares ��ch as tF���n� r�c�mrr�ended an tt�e��b���t lot�I! b� imp�em�nt�d or� L+�� 14�� w��! 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Ztlt33�.,�e�f�Qit:�llt��tt a�i K�p�r�c�v Gtty O#'T.�iatnatld F�az'�taxf�►f F.�iz���,�i*Vi�w ,� �S�e� 11�6, 11���u� IZt?��hi�o�m '�a�il,City r,f�ia�,o�$arw C�Ii��ia, E�r�P��e�i l+i�.{�3-AA- � '� �����,��t�t����,�t��. y �� � ; ��I.� 2�i?3b, lte�pr�m�c to City s�t'Di�urr�€�n� B�r D��t af�Sn�ing, R.evie�r SF�t� 1�9f:� 1 t98 �d � � �Z� C�isa2� T�i�l,, �ty pf I�a���ad $sr, �sfon�ta„ E�L Prt+j� I�ic�. 03 A,.tt I�Eti�t, +�ated �,.�agu,st�,�{l�,as s�e���red�tes��l�sr l�s 2�� x � � �.�l+����[t � � � � �� , . �a� �� O� ��.� p Ci� a� �!� n� ��r �u�-��e� r��a p.a ��1���4-!$� , . , . T�it�a �e��t, 2�i�, R�port o�'���i�a� C�t�n�it� ���,i�ri�g I�ve�i�tis�� I.�ts: 1 Z, 1� 1�4 � 15 u�` , , 'I'za�3��73,tl�v��d Pc�p�'V��st�ly�a�`t�Cr�ter;�tiaa�f Rio L��ts�d��olm 7�1,�ity�rf ; � TJ�iar�a�n�i�r,Pro�e�t�Io.4 t 72-�U�,c�M�+��M�� f 1 �����'e � ,���'��p[t 1.5��C�}1�t���'��Q''��t� � �.�pt'�I�b�.B�Y��dI t�fl1l��:�.t3OV � � _„�,,,�,�,,,,,,���BI��!'�1S��t}4��C���►�Y� �_,l�' �!]�?Itl1��`��III�Q�I"k�t7[l"t�11CG�C. ��� � , Slif1J�LD Cf?1Z��i�}�f}W. G')�CE���T�VI��f. � �� �ie�E,����.���. � � R�e �ve b� ir� cont� v�itt� t1�� �tcxhr�a�l c�nsu�t t� try I� �lv� s�am+� �f t1� �la�nical q�o�s � ; re,�tcc1 u���,�t. Hc��`��i�c�t�lvecl is�ctes r�a�i�dis� ir�t�is rcvi��h�t. � � L �Sc pr�vzr�us�� �que.�t�dT Prs�v�c� �e�ign c,�1��il,�tic�s �€►v�ri�g t�i t�e c�i�ns v�itl � st�"i�i�ni to i �nthst�d th�la�r�l'lo�d fr�t�il�e�� a�►��h��r��. �-Iow wa�th��ir�m�n r�r�mezxi� , , i� f�t�b�e�t depth #"�r t� ��c+� ��c��► tEu �ar � d���ainec�? �ravid� �si� c�I�lati�s r �h as�ae laitecal�efl�iem c�f ti�c�cro st�he s�t�r zc�r�and�t�f�torn o�'the�xaiss�n t�a�valu�te if s � ; �i�inim�e;t�l,ed�aent i��ii��ri�. � � �. Pi�viur�r a�l�sis�l����� sh�w�d �t�e si�� t�low�e sa�s�son��ld�v� a �r��'�'�ty�f 1.18�A�ys�s��. 8�. "9�'�t t�is lavv�r afsa�'�rt i�p�si�fe�e s��belv�w tkk��ildi�s�uXd t"ai�. �ri �i�icr�„ i� i� �aans�btc �t ad,�� l�ts �€tric�t h,av� �, b�n sta�lir,cd cc�uld �sc� �ai1. .�s pt��� � r r�aqu,e�te�,+di�the�ggct tt�the�Ic�,g a�io�r�t�ear i��rn�d�t�t�rt�i tiy�s�auu��t�ci the � � slop� be�o�r t� �ot c�r in �t►�t�l adj� s� �. I# �s u��r � th� r�se�tta�tk's r�sp�ta� ��Z�i�rh���'di�l�t r�ti�,��m s�ismicc actz�rzt�y i��lat�ta t��is c�a�cmR � � 3� �s��e���rr ta�desig�ed�a��t�u�l s��t? �.�'n�at,t��tr.�i�4�`r�r di�r�ial s�etfle��t f��` ` "� this and ot��as zu�t�pp�rt��a sE:toet�r�1�l�b�r c�i�so�s��tt!b��u�d. � b 4. Di�s � �r�sib��i af i�nsi�� ��y ar��me�tt �!he �'oti�mdat�cro syst�m iaa tk�� u�r �tvpc d� to 1�it�s �` � � a. PI�e piro�ici��d�tai�ed pI�n s�aw�ng thc I�yu�t of t4�.c�a.t�s�weth a�tual �rt��c�tas�r�v��d+�ptE�;� �ricish�t�r�t�r��o�t) ��t�,�,'��l� ��'�� ��� �- ��'�� �- ����'�1 � i ��� � �� � � s • R�vi[evr�ti by �.. ��t� ._ lanut�r 2�,2t��-- _-_ � , �'�sc�n D.��r�,R�E 6�7�5 � � �ev�ared by �� J 28 � S Phi3.i�A.��c�i�sel�i, C317�5 , _�.. ; ��1��'I��C� f � ' ��C)'�"�CHN��AL I��EVY�HE�T L�I+�HTC)l,i A�I}�5��CIATE�,IN�. �`�R ��TY QF�ti,�VIUN�I �A�L �EFAR'��'1�IE1�'T{�F�1���NE��N� 2���16�€-��8 °Tract�s� 37873 Lvt 1� Date ,Ta�� 2� �0�5 Paz�nt Tract Lt�c�tionl�wner Mr,I��u°�r�cier�urn�.r ��te ,A�ddres� �1 6 Cht�holm T�il Dnv� �ea]��ist E�L I?ev���per S��ls En�r��er t�� Fzzg��eerl�h Do�a�d J Tnmati at�r�Ass . I�.EVI�W t)�`. ��Grad�n�P� No Gec�l����t R��rt���I��t�;d Sc��ls ��p€�rt(s}��ted � Cr��Iogy�ci �o�ls R��art��}Ua�� De�err���r$ 24p4 X (�th�r Plar�s riat�d A� ust 2� 20Q4 �ais��Desi ��al ��t�Qns fr rn gan�l.d J Inman �s ia��� s�e l��t�n. �f r�v�ew�t�dc�uam�z�ts T�tan�ld J Inrn�n & �,ssoc�ate�, Z004�, R�spn�se to the �iry t�f L��amat�d Bar Cr��tr:�hr�ica� �e�i�w ���et c�f L�t 13, �19��h���,ol�n Tr��� Drive,Tz�act h1o. �7873 �n the C��a�"I��amon� Bar,�a�.� �c���r b, 2�{?4 ��nald J'. Ir�.m� & �4�sc�Yate�, 2�4, Respot�� to t�h� �ity c�f I�i�n4nd $�r �eo�ec�cal F�evi�w ���et �f I�t l�, 11����shalm Tra�I D�ive,Tract�1v 37�'�� in th��ity af T��amt�n���r,c�ated Du°�mber i�i, 20f�4 �ls�n�Id.� �man a&�s�cciat�s,24�5, 119� Chtsholrr�Trail I��ve, L��aanand�r, date�]ar��+24,2�5 �GL, �{�t�, Resp�r�s� to the Cit� �f I�i�nan� Bar, Ge�t��hmc� Fteview �heet� La� �3, 119� �h�shn�m Trai� Dnv�, �"r�ct I>Io 37�'7�, l�i�rr�and B�, Ca�i��trtua, E.�`,rL �rc�ject �c� t}4-A�-�332L11�., dated l��emher 8, ��� F�L, Z�04, �c��ls R��rt L�pd�te, Prc��ased S�n�le-Fam�ly�.�sider�ce,Lot �.3, 1��6 Ch�sh��m Tra�� I�rive, °�raet I�it� 378�3, L���zn�zad B�r,C�l��'�rnua, ��'rL Praj��t Nt� 04-AA-�32�.i,dated S�pkern�z 3,2�?� EGL, 2003� Change af Cot�sultant and �es��nse io City c��Di�€�nd �ar Departrr��nt tsf Eng�neen�, �ev�e� Sh�ets �196, ��9� and ��U� �h�solm Tra��, �C�ty a�`�}�am�rn� ��ur, ��1��'�m�a, EG� F'r��ect I�I� 03-A.�- O��EG�t, dat�d�pnl��,2�03 ��'iL, 2003b, �.�spc��� ts� C�fiy af T�samond �ar Z�e��rtrnant of�n��neer�n�, Revs��v Sh�t� 119�, 11�� and I�Ofl C�isolzz� '�r�il, G�iy a�' L�zam�nd Bar, �al�f�mza, E�L Pr�j�t Nca 03-�-�2��iH, dat�3 Au�t 8,2{1��, a�receive��epte�n�er 1 l,2�1{��< �..�IC���Qtl t x 2�101�'i4=��� i���th �hl��t, 2�(l�s F�epor� [�f Gev���te �d �ec�te�hna�� En�tn��rt�g Inve�ti�ati�n� L��s 1�, 13 14 and 15 af "�'r�ct 3787�,�Jnd�veloped Prt�perty Westerly c��`the Int�rs�t�un afRio Lo�r�s �� Chisc�lm�°rail, ���y af �i�mc�nd ��r,Proj�t 1�0. 4�7�-[�0,dat�d May���t?QQ ACTI��: F'la,n�R.��rt is ge�te�I�ruca,l.��appmved � PIanlRe�rc zzc�t a�rproved fc�r reasons �l��r plan�'R.�r�is geote��ni��.���a�praveci � ��a�amit P� e �art far rech�k Include a �ubjec�t� �nd�t�o� b�law. ��, o�s r�vz��r REV��+�l�lYI11�EN'TS: We hav� be�r� ir� �ontact �th th� �e€�t�ec}�n��al con��t�t tc� t�y to res�lv� �Qme af th+e technical que�ti�z�s related to t.his prc��ect Havv�ve��s��af caz��unresQlved ��s�t�s t�:t�r��tr�and ar�d��cu�s�d tn thxs r�:��ew sheet I. A� prev�o�sl� requested, �'rc��r�si� desi�n caicul�t�vns s}t�w�.�g that the c�us�sa�s wrll � suffic��nt tc� w���,nd 't�t� I�teral lc�ad from �.�� the maten�r� abc�v��e sh�e�,r�ne How was th�e �xx�rrnurz� recc�mnr�end�d l� �'��°t emb� 'dment t�egt� fvar t�� ��:tssvn b��v�v t.�� sh�ar z�t�� determ�ned� ���a�r�de des�gn calcu��.t��ans s�ch �s the lat�r� deflect�on of th� caissc�n at the s�e�,r zcane ��i at the �c�ttom a�`t�� caissan t�r eval�t� if thi�a�iztimta�m embe�en��is sufft���nt 2. P��v�c�us ar���sis (Et=rL �t�3b� show�d �� �}te slo� E�I€�w t,�e cais�€�ns w�uld 1�a�e � f���r of sa�'�.y c�f 1 �$ (An�l�`���1'�Iv, S) t�ith�� ltaw f��tc��r�f safety �t �s pas�tk���:the slc�pe E�eIQv�the�u�lt���could fa�l I� ati�iit�vn, tt x� �ssi�ale that a�i��.���t lvts �ch h�ve not b�r� s�tabilized cc�uld �l�o f�l. As prevt�usly re��ue�ted, dis���th�irnpact tc����uildin� �dl�r c�t�er imp�����ents n�t sup�art�� by cais��zs should t�e slc�� belaw th� �c�t c�r in u�zpr�t�ted ad�acent ar�� f�ai �t �s unclear how t�� ca�tsu��taz�t's resgvnse des���ing 2q �r��h�s c��'dtsplac��a���res�ltin�fro�n�e��rnic a���v�t��s r�lated ta���nc�rn 3. Is th� g��� �Iab alsc� tv be desi,gt�e� �,s���uctural s���`� 1���►t, th� �tertt�al fo;r ���earen�t��l settleFnezz� for this a�ti c�th�r�r�� nc�t�ugpart�l �s a s��t�l slab by caissc�� should t��discus�e� 4. Di�c�ass the ��ib,lrty c�f tezzs��e ��pacity r�uirernen� c�f th� ftau�datrc�r� �ys�e� �� i�e up�r slope due tcr lat�ral laa�� 5. �I����rt�vid� �d��i��d plan s�r���n;�t�� layo�t o��e ca�ss�r� w1#h ac#ual d�inen���ns (r�v�s� ��p�h snd wi�it��as�d on th��alcula�on) Rev�evy�d by � _ �at� ,_ _----- January 2$,���� a.sq�D He Ia��rg, R����775 Revie�v��i by � �ate Jan� �$ 2C�05 Ph�l�p� Buchi� ��,�E� 1715 - 2- Lel����r� ti � � � � �� ������}������� ;y{} typ��r'^('� �yY�M• #, �e}��f��k[ ii���� ibU .�� rwr��ki+ ���}-T'ECF-�N�LC3�Y � �h �•M. D � n ■�a�w�R /J!MN�/t �``'[ �/ (`� '^� �j 7E�r[��\i. � M9�Fi\t VI��'} 1 �[ tx' f4�E .lt"i� L��-��` +i+t�i�161t �!�*'� �C�� L,r° '.��»,d�fi�V' w}<��.�i�� I ������ �. I..��QI�AT��Y, It�1�. ���� 2D�� ��� �2 Ph �� �7 �" rv�- De�mb�r�, 20t�# I�r Nartncf�r �Cumar ��� ������r� 1�535 �laf�a�a�h Avenu�, Nc��v��k, Ga�[fomi�9�65q ������ �q��r� ���� ; 4� ���al��!�� S�b�ect Re�pc�nse�t�khe�ity of��amond Barw�+�ot�h�i+c�tl I�+�vie`nr She�t, �.vt 1�, 11�� �hish�(m Tra�E Dnve,Tea�t I�o31873 ���mc�r�d Bar, Cal�fom�a� �GI. Rro��ct F�� C�-�A�3�2�F� F��f�r�r�ces 1 F��part�f G�t�Eagic ar�d ��ot�chn�c�� �ng�n�enng Ir�st�gat�o�, La�s 12, �3, 14, �n� 15 �1 Tr�ct �?873, Ur��ev�loped Pr�a��rty Vt���terly of the ��terse�ftc�n of Rtc� L�bc�s and �hisl�sc�lc�Tr�rl, ��ty af C���mqrtd B�r, by #��ith Ehl�rt�c��su{t�rtg Eng�ne�rir�g �e€�log��t, dat�d (�y��, 20�(l, Pro���(Vo �172-�� � Res�c�a�sa ta ��y c�f�3�a�ttanr� S�r Reu��w���et date�! ,lu��y�8, 2�t}�, �19�, 1198 8� �200 �hisht�rn Tr��� Dnv�, O��rr�nd �r, C.�I��mi�, by �r�v�rQnrr�e�t�l �vtechnc�[�y���rator�,�ted Au�ust�.2Di}3, E��, �r���t No : �3-,�-{}12��E� 3 1 C} �a�e �ra��n�t��ain�ge F'I�n ��ar Sub��ct ��t�, �y Don�E� J Inman & ��sn� , d�ted August�t�, �{lq4 �entlem�n, This le�er �rov���s ��L`s res��n�e t� tF�� ��'� of E3iam€�rtici �2�r regardrng �e�tech��cal l��vicew S��et af th� G�c�te�hnic�l Inv�st�c�ation for tF�e subae� sit�, dated C)�tob�� 6 2��� �'or yvur re��;rence, tF�e R��rttew Sh��t �s atia�Fted �n� the r��par���s�►re pr�s�nted bel� [tem 'f F�rov�d�d by vthers I��m � P'rav�d�d k���thers I�em � Rr�vide� �y other� lt�m �€ ��se� on t�� ar�aEys�s �n r�f�r��n�ed �epart#�, th� m�x�rnurn mavern�nt d�a� t� s��smsc ac�iv�ty�s ���rax�rna#ely 2� incf�es It is t��ar a��tt�an that the f��er�,l dis�Eacerner�� of Lot 14 �ho�z[d nc�t have ���n�c�n# �mpact to tt�e ���baf�z�t�on �� Lot 1� The pr�a�os�d structur�s w��[ �1� be fi�unc�� c�n ca�sst�r�s �elow ��t� �he�r zon� �nd design�� fcar thr� r��amm��ded lat�ra� I�ads Ther�fc�r�, mc�v�rr�ent fc�m a���cent lrats sl���s sf��u�d n�at have a sign�f�cant ►m�act �r� th� p�aposed �98�3�lausc,n Av�r�ue,�nit 1$,a�n������rEngs,����767t�,Phon� 562-945-0�89, F�x �2-94�-£��6A �� [�Ir Nartnt��r Kum�r Page 2 E�l. F'ro��c�No iI4-�1A-0321IR a�cem�er�,2t}04 �utldtr�g � f��lur� Qn Lot 1� t'rta� r„�u�� s+�m� t�r�st�n a'acks wrth�n th� �����nt lat� �t �f the �tru�tur� �s des��r��d as rEc�mm�nr�ecl, th� �r���t ta th� prt��sed buddin� �� �nticip�t�d to be �ns�gn�f��ant �ter�n � The s�[!�r ca�s�n spac�ng may �u� the ���� later�t moverr�nt c�f sa�E rr�a�� �ei��r�d of th� ca��sor�� Ta pr�v�n��r�y�mpact due����e Iat��I d�s�t�c�ment of sca��, �t �s rr�;c�rrtment�� that the prapta� �l�b at tt���u�ject s�te shp�a�� �d�s�gr��d�s steu�turaE s�� tt�m � �� �s r��rr��rtended #t�at th� propos� ��ructur� be faunc��d �n piies r�r cats����. It is ��t��Fpat�d tl�at nc� d�ff�r�nt��f se#lement v�rill a�ur ��n th� prt��ed floor �e�� �ot�r�d�tic�n if �[�� �ic�or is destgne� �s ��tr�c�ural tic�r as recomm+�r���� �n �tem � [�em 7 Base� �n tY�� caE��l�ted d�s�[acerr��nt vf 2�} �r����s, any fu�ure distr�ss ad���r�t tc� th� ��ructu� c�r ot��r site �rn�r�v�ment� may o�cc�r but �r� ar�t�c�pa�te� to �e m�r�imal ��rever, tF�� t�r�er �hvttld �� aware �I�at any �uture �i�str�s5 rt�tg�� vccur fr� s�te �rrtprovem�:r��� �r�9 wilf ret�utr� repatr� W� a�p��iat� t��� ��p€�rtunity to be v� servi��� ��c��1�9 you hav� �ny qu��t��ns ����ning t� this le�#��, please c��l �s Resp��.fu�1y su�m�tt�d, �,�,Q'����� ���1 �,1T`�t���� Envi�r�ar�m�r�fal ��Qtechr����gy Lahor�#car�t� ��n�. (�GI�� �� � ?�,�� � � �61� ������ '� ��. �'���. � �� �,��-��, �'� � � �� �'r, � � ��v��. ���' � � � � ���� ��' � - ��`����►�����- �� � � , �x� 1����'-�"► Hanlc Jt�rt�, P�, CEt� �(64�a, GE 23 �[ �►'�c ��� an �( es CE �'4t}� Prm��p�[ � ���� �`�� rn�ect Er� i�e�r Dist {�}A��rr�s��� ����?�CA�.��c�� HJlR7lal ���y�E����� ��.�.��yw�,H L �,¢�'�� � �' �� � �6d� �' �' � �� G� 3s7�•�• '�"� � ������ALI���`��a i�823 ��a�t��tt Aua�s€�e,�,Jnit�8,��t�ia Fe Spnngs,�A 9�6Tp, Phor� ��2-�d5-(388�,Fax Sfi�-9d5-038d� �ct �7 Q4 �9: �8p ,� �� �S. � _ . -_ _ � Ci1��i of t3���nont� BaC' �t�����b-»�re� . ��t. �36 �4 D3:��p E �t��e�f��a ��:� ��►e�a��► ���w s �c �� e�1e� 2���tfi�-I�8 �'�'�t�N�lVl��: , �,�� Plr,�e�o�i�a�d�p�a�s shaw�g t�I��ri of��aic�'wit}��aI d�ar���th�d widti�,�. ✓ ` ,��,� 1'�rv�cc�e�ai�+�I�tadic�s s�r�g tl�aat tho w�ml�r of��^wili'b��ci�t t��t� I�r��d�m��mate:�l gbczv�t���e. �o sh�wthe te�,1�$a�+r�n r�thc�du� t�v the l�1s�a, r- . y �,Y�'sre.� r� ���¢ � �Cr;�,��Y"� � �3» � Q�wrir�iu�um �Iesia� I� af'thc � b�sed t'� l�r� �ad � fi�ads �ar� o�t�r�elcv;�d �. �idrssa��s. _ `� N��dia�z�a���p�d��i�ii�t�►e��Lc���. �t�r�#���mo� � a� the ��pa � �t �t w�x1�! a�mpe� t�e �w�ty c��' L+�t I3. �:+r� �� �ty�s ees� �abali�ioa�f�ts 13 tkmat� ��. J�r the a��m+crf'L�t �3� eiaa�c�u1�i3�im;p�t c�Lat �-�. �. k 1�u�`aprv�l�,o�e��Lot��, _ " �} � t�c in�tu+�co �rf i�p� a#' c�an�s � m�remc� rsf �a�.t '�► tf� baf�dau� em�t r�ated `� c���d�iti�ia�t a����m a�1sb-��lc�ar��r�.�v��. �- r � � �� � ; ���w�i�t�s�it�t��cm��e pt�d slat��rc���,a��ttd���� � Y �'���xi} �, . � �'�. �i�cu� th,� �tp�#. af t� �utax+� '�adj�u� t� prr��vsrd ��u�„ d� tiuc� �ad �S,�cd � �������� .---�� R,��ed h�r ��'�� `'r��' `".�.—�� �de � Sirv�►K,.Sit�q�fr�I� R;�r�ed� �c .�,.�,.._ ���2�4 . �I�p A»������5 ^ , . "� �'�'Zf'�' � C`��•f! �_.. �; � G Cr , ��'�"tCsr.� /�C�.���"�-� � 4" � � ���-�_w �`�:,�� � _ � :���/�'r ,' ��' •.-,'��/�`� �� , � �- _ %� "� " ���� �1 �� ,�' '"�-�� - .� ,"�� _ ...- r �' ,;,, � { i , �� r ` � r "�' � # _•.� � .� � �� :.. ._,,.. .' _ „�= , . ��`tt��it�f� � GEOTECHNICAL REVIEW SHEET LEIGHTON AND ASSOCIATES, INC. FOR CITY OF DIAMOND BAR DEPARTMENT OF ENGINEERING 2910164-188 Tract(s) 37873 Lot 13 Date �ctober 6, 2004 Parent Tract Location/Owner Mr. Narinder Kumar Site Address 1196 Chisholm Trail Drive Geologist EGL Developer Soils Engineer EGL Engineer/Arch. Donald J Inman and Assoc. REVIEW 4F: Grading P.C. No. Geologist Repart(s) Dated Soils Report(s} Dated X Geology and Soils Report(s} Dated September 3, 2004 X Other Plans dated August 8, 2004 EGL, 2003a, Change af Consultant and Respanse to City of Diamond Bar Department of Engineering, Review Sheets 1196, 1198 and 1200 Chisolm Trail, City of Diamond Bar, California, EGL Project No. 03-AA- 012EGR, dated Apri121, 2003 EGL, 20Q3b, Response to City of Diamond Bar Departrnent of Engineering, Review She�ts 1196, 1198 and 1200 Chisolm Trail, City of Diamond Bar, California, EGL Project No. 03-AA-012EGR, dated August 8, 2003, as received September 11, 2003 EGL, 2004, Soils Report Update, Proposed Single-Family Residence, Lot 13, l 196 Chisholrn Trail Drive, Tract No. 37873, Diamond Bar, California, EGL Project No.: 04-AA-032U, dated September 3, 2004 Keith Ehlert, 2000, Report of Geologic and Geotechnical Engineering Investigation, Lots 12, 13 14 and 15 of Tract 37873, Undeveloped Property Westerly of the Intersection of Rio Lobos and Chisolm Trail, City of Diamand Bar, Project No. 4172-00, dated May 29 2000 ACTION: Plan(Report is geotechnically approved X Plan/Report not approved for reasons below Plan/Report is geatechnically approved X Submit Plan/Report for recheck. Include a subject to conditions below. co�v of this review. ♦ �� � 2910164-188 REVIEW COMMENTS: 1. Please provide a detailed plan showing the layout of the cassions with actual dimensions (depth and width). 2. Provide design calculations showing that the number of caissons proposed will be suffi�ient to withstand the lateral load from all the material above the shear zone. Also sho��the lateral deflection of the caissons due to the lateral loads. 3. Provide the rninimum design length of the caissons based on lateral and axial loads and other relevant considerations. 4. No remedial measures are currently planned to stabilize the adjacent Lot 14. It would seem that movement of the slope on that lot would impact the stability of Lot 13. Previaus stability analyses assumed stabilization of Lots 13 through 15. Justify the stabilization of Lot 13 alone and discuss the impact on Lot 13 of a potential slope failure on Lot 14. 5. Discuss the influence of spacing of caissons and movement of soil below the building and related consequences and mitigation(including impact on slab-on-grade floor and other related improvements). 6. Provide the settlement variation between the proposed slab-on-grade floors and caissons supported structure (including calculation). 7. Discuss the impact of the future distress adjacent to the proposed structure, down the slope and related improvements where no mitigation measures are proposed. _ , , � ,,,, < � �- . , , � f ,� _ , 7 :i � <� G;' �'�t.,� ;_ Reviewed by �� ` -" Date Octaber 6, 2004 Siva K. Sivathasan, RCE 63185 �,�� y ' Reviewed by ��"-�?����.:� Date October 6, 20Q4 Philip A. Buc iarelli, CEG 1715 ♦ �� - 2 - � e.� EN1/NR�NMEI�T,A�. ���� 4� ,�► . ;:.�.. �..,_~:�•A.: �E�T���I��iLt��Y �#T�'� � ���� � .,. ..,.. �� ���� "� �II�AA •Y�xi �R � `.::::::� ::::� �.A�flRATC��.Y, 1N�. ���`� �_�.v��� ���t q€3�;�; �. «,� < < �T �� #�� �'r +��g�q �+ [U�1�r1LI` '"'{� ��i �: �_�__ . �_� �••� mber�, 2Q0� Mr Nar��td�r` Ku��r �� ����l����� 3��35 �'�atbush Avenu�, R��arwal�< Gal�fiom�a 906�0 � l �������� ����� ����� ' �ic���5���� S���ecl S�rls F�ep�rrt Upd�t�, Rr�posed s�ng�e-�'amRly R�s�d�rrc�, �,�� 13, 1196 �h��F�olm Tt��� Drive, Tr��t Nc�3787� DF�ms�n�i B�r� Cal�f�rr���, �G��'raaec� [�o Q4-,4��03�U R�ference� 1 F��p�ri €�f �eo[t�gic �nd ��qt�chn�c�l �r�gm�erin[� inv��tig�i�t�r�, Lc�ts 1�, ��, 14, ar�d 15 of Tra� 37�73, �lr�deve�s��ed Pr�per�y Vl��sterly af tF�� ir�terse���tan a� R�c� �.��ac�s art�i �h�sF��[m T��tl, C�ty �� D�arnond ��r, by i4��k� E�[ert �tansult�r�� �r�g,r�eer�ng ��calc�����, d�ted �ay 2�, 2U00, Prca�ect�lo �172-00 � Respc�ns� to G►�y of t�►�rr�ond �ar ��v�ev� �t���t d�tted ,1uly 28, �4C}�, 1�94, '�1�� & 120�3 �his���m Tra�� ❑r�v�, Diar��nd �3ar, G�I�f�rn�a, by �nv�ronm�nta! G�c�t�chr��l�gy La��rak�ry, ��t�i Aue���t 8, Z�C�3, �Gt� I�ra�e�# N� Q�-�- �}��E�R 3 '��? 5�1e �rad�r�gl�rarnar�e Fl�n fc�r �ub�ect �rt�, by Qon�E� J lnm�r� & A�soc , d�ted M�y �F. ��04 Ger�tl�m�n E��. h�s r��►ew�d th� refer�rtced r���arts �nd con��rs �n g�r��ral w�th tt�� f�rtdint�s, eor����s�nns �r�d r��arr�mend����rts, and �s ��t�sfi�d w[th #h� v�rk �erforrrr�d �rc�m � g�qtect�r�ic�l �r�� en�€r��er��g g��logir.a� si�ndpc�mk �et��led ��nfFgurat�t�n �� ��t� ��te �s sh�sv�rn �r� t�� Site Plan, F��ure 1 and a Crc�ss-ae�fi�c�n thro€�g� #he s�te car� ��gure �, �tta��ed ���ed c�n tF�e �����ct site c�arrditic�r�s �nd prt�p���r� deve�€�pr°n�r��, it �s recomrr��r�d�� ti�at tt�� f�4��wing recomrraendat�c�rrs be �ncorprar�ted in ��� des�gn an� constr�aci�can pF�ases t�f the prc��ect SLOPE �►T�►BILI7Y �ener�l St�ia�E�ty �f tF�e ex�sting d����r�d►ng slcap� �nd prap�se�i corr���ct�d f�[� ha� �eerr cor�sidere� �nd c�fcul�tinn� �re presented ��► �ppen��x A The �tr��gth ��r�r�eters fr�m Refer�r�ce �� wer� u��d �r� thEs slope scab�l�ty �nafys�� and ti�� str�r�gkh pararn�t�r for ihe pr���ser� �ompacted f��] �s� evafuaf�d m fig�it �f p�st exp�r�ence [n s�m�l�r �nil arrd �edrz�c�c kerrac�s Tt��e strer�gth par�rn�ter� and res�aits �f o�r anafyses ar� pres�nted kn T��ale 1 ar�si 2, ar�d A�pe���x �4 R d��cr��tirrn €�f each an�lys���� prravid�ci b�law 11823�lau�c�r�Avenue,t�n€t 18, �ant� Fe�pr�ng�,�A 9Q67t},Phar�� �62-945-C��89. Fax 562-945-4364 ��� ��� �1[r N��tntier K�rr��€r Pag���f� ���. Prrs�eci Na �-AA-(}321� �epternb�r 3, 2t�� . � � � -� T�bie 'i. ��ii F��ram�t�r� Frt���vn�r��le �c�hes�vn Sc��E Ty�e �S#at��1 Seismr�} �Stat�c I �ei�rn�c} Qe r�� s� ��r�dst�rt� 36 13� ��tl /�7� AI��� Bec�d�r�r� 1�/ 14 ' ���/ 180 �om���Ced ��II �4134 �50 / ��0 She�r Zc�ne �vu�� , 22 l �� 98�� �20 �c�r�cret� �/0 9��I 940t� T�E3�e 2. Summar c�'F Slt� e Stabl�it F��tc�r Qf Saf�;t ... An�lys�s hl�a ,��alys�s T��ae St�t�� �eism�c Ar��ly��� # 1 ��mp��f�ed .��nbu's Il�e�had 1 2� �9� An�l�sis#� ��mpi�€►�d J�rrb�'s I�iethc�� 1 �1 � �4 Anatys�s #3 �t€�d�f��d ����op'� Nt�thQ�i 1 �� � ------ : �r�alyst�#4 : ��mpi�f��d .��n��a`s M�ihcad � �6 � 3,� ���I�r��s #1 �3�s�d ar� �ur ��t�lys�s, t�� ex►�t�ng sic�p� may hav� � f�ctor of s�f�ty less tf��n 1 5 �a�l�rtg �Ir�r�g t�e sh�ar zpn� and alvr�� the �eddrr�g to the �[cap� tcre Th� ��m� an�ly�s�s unci�r ���srr��c c�r�drt�€�ns t�as a ��ct�r r�f safety c�� �?9� �'heref�r� the s�te m�y�e cc�ns��ered �nstak�l� durinc� se�srr�►� a�t�v�ty Ac�t�rd�r�g t� the r�fer�n��ti r�pQ€t #2� �}�e rnax��num t���placer�t�nt far the (�nds�►�� is apprc�xim�tely 2� ���h�s �nalvsis#� The ca�ss�� at t�e n�rthv���terly c�rner �f t�� �tr��ture, wt��ch i� ��cate� f�rthe�t from the �l�e�r �pne, �as usec� En c��ar �n�ly��s 7h[� analys�� �h��r� the fe���b�l�ty vf �sin� �i�s�r�� t�r br��g t�e �ac#or r� sa�et�r t� m�r� than 1 � If the s#ide mass dcr�n �I��e Es t�rr�t�ved, tt�e f��l�ar� alo�� t�e s��ar �c�r�e shc�c�ld haue a fact�� �f safet� of � 51 an� 1 34 �nder �t�t�� an� s���r�ic �nd�t�or��, r��p�ctr�el� Bas�� vn th�� �n�Eys�s, the ��he�,on �a�r�m��er of cc�r��ret�. ��fl ps�, was used wh��� provs�es sc�ffcient facicrr �� s�fety rn �xc�sss of CEt�}r rr��nimurr� requ�r�m�nt T�e d��th and v��dth o� the c��ssvn w�s as��me�f tv �e �� f��t beltaw t�� shear zorr� and � f�et d�amet�r, ftar tt�e �[cul�tian pur����� Tt��� analy�Es �hc�v�s wikF� i�e u�e c�� su�i��ent ca����ans, �rh�ch ar� �arc�vadec� t€� ���hst�r�d the lac�r�l lo�d frc�m tt�� rrt�ker��l �bc�ve �he sF���r zane, �� is f��s�ble tc� br�rrr� t�e bwld[r�� p��i tc�ccrde cam�i��€�ce {F � �1 �} A�alvs�s #� �t�dik�c�r��l �n�lyses v�€er� p�rf�rme� t�r� ihe s��e �s��rr��ng tt�e r�ater��4� ab�v� th� �t�e�r ��n� v�ere remc�ved and a c�rcu[ar fa��ur� c�c��rred �r� t�e be�r�ck rnatena� u�d�r the s�ear zon� Th�� sl�pe wou[d have a factc�r c�f ��f�ty of Ie�� than 1 5 assur�n+ng al[ tl�e m�t�r�al ��ca�r� tF�e sh��r zc�n� v��s cc�m�l�teiy remc�v�d Du� to th� f��t th�t th� max�mum r�isplacem�r�t �� �� �nche�, thi� ��en�r�€� is r�o� ��ry [rkely ta ca�cur but r��s �erfc�rrr�� t�a determ�n� kh� crtt�c�l f�il�r� plar�� t�sed tr� �naly��s�1 77823�4aus�n Avenu�, Unik t� �anta Fe aAr��9s �A9�167C� Pha�s� �62-945-�}58�, F�x a62-9�5-t}3Fa� Nir N�r�rtder Kurr�,�r Pag�3 C�F 6 E�L Pra�ect N� {}4-A�k-�32U S�p#em�er�,�CJ� � � E Ar��lySES#� In �r�atys�s#�, ths sl�ci� m��s+tv�s r�piace�i as�umtr�� th�t �f� f���ure �ccurr�cC, th� rr�as�w��ld nc�t move �ery �ar and th� w��g�t �f tF�e slide r�n�ss v�uld st�il prov�d� same [ateraf st��port tt� the �edrea�k mat�naJ b�l��v the she�r zQne Tl�e c�i��al fi��l�r� pl��te frorn ���lysis#3�€a� �ased a�d �he f���ure �larte wa� allowed t�a cc�r�t�nue alc��tg th� beddin� ta dayl�g�� This analys�� sh��s that t�e s�t� s�aul€� hav� � factr�r vf s�fety c�� 1 96 �nd 1 �2 �nder static and s�t�mic c+�r�c��tions, re�peci�vely �u�f�c�a[ �{��se Siabilat�and Lar��isc���nr� !�l[ sl�p�s vvrll be sub�ect ts� su�t��a1 erost�n Th�refpre, ��c�pes Sh�ul� �e prot��t�d frc�rn �ur��� rur�c��f by means �� t��-of-s[ope carr���cie� �arth �erms c�r�ncre�� �nter�e�tar dra�ns �II ��apes shauld be [�nd�caped w��f� a �uit��E� pf�nt mat�;r��l requ�r��g rnrn�r�tal culi�vat�on ar�d irr�t�at�on ��ter �r� ord�r �t� thr�v� P�n irr�gation syst�m �F�auld E�e Gnst�[��d �ver �r�t���n� and �t�bs�qt�e�t s�turat�or� �f slc��e sur��c�s sh��ld be av��ded Based �n t�� re�ult� �f o�r a�aly��s, �t �s ta�ar aptn�an that t�e pr�pc��d �nstr�a�t�on �s f��s�bl� frc�m � geotect�r��ca! 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Has ���r� Assigne�l A Ve�t�c�1 Ea�w�Z�uak� I�€��dirg Cc��"icie�� �� Cfl�� Nas ���n �'.ss�gr��d Cav�����.�n Pressure = C1 r��� Tri�l �"�il[�re �ar=ace �pe�a.�'a.�� �y 5 Coo��lira��� Po.a,r�s Pas.n� �-Surf Y-�u�f N� ;�t) (f�} �. �� fl0 138 �Q � �19 76 77 65 � 43� 3p 25�' �� 4 �35 �0 2�� QQ 5 �35 BC 2�2 '7�, eactar �� �a��:y eor Th� Precec��.ng Spec�f��d �ca��ace = �78 ANALYSIS #2 (Stat�c) 0 0 � 0 � � � � E rfl O� f� � F O C n � � � L. O � � p � i �--� f"') � d O V i � p� m �1 Q N N ` N� O � L 2 r� ra N a'^ �-' m � `� J d� � L C� � C y h NOOQaa � � O p � �" � X E _] °'c' ¢ � v r � d� � x p � oN40000a o' 4 a � � �- o Lf� � � � � J ° m.-. 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J�4:i � Z'C.�`�.�.i. �c�,�.U`ci�L"�C� �.C?rl�.'�:iOR ��L:t4:'wlOR f�QI'� E`L�SSli'_"� �'_82 Ty�� Una.W Wt �Jna t WC �ra�ercepw r'�ng1e E�r�ssure CansCan� Sur��ce No (pcf} (pc�9 �ps�} {deg) Far�m (psf) �70 1 135 C1 I35 Q �7t? q 36 n s�Q � � 2 13 5 0 13 5 � ].5 Q � '�.2 � �i Q tl � 3 13 0 {I 13(l � 15(l q �9 G s�Q 4 (7 � izo � ?�� � ��� a z� � �a a � s �so c� �s� c� ��o� a � �a � � T�ia�. �'a��ur� Surfa�e S�ecaf�.�d By 9 Ccc�rd.�nate Pra�nts Pr��nt X-Saar� Y-�urf t�c� (fC} {�tl 1 3�� 8(1 �16 70 2 934 �(� �57 60 3 935 7Cf 25B b(l 4 435 $CS Zci2 ��i �'actor Qf �afety Fca� Th� Pr�ced�n� Spe�.��zed Sur�ace � 1 50� ANALYS[S �� {S�csmic} � � � � � � � �, � � �r, � � '� c� �,,� ... `r � .--r �'.7 ,r � � L C� � `+— p � I �--t �'"? � �I � � ('Jt ar +'7 Q � '" OMi w,�.Gq � ��.7..' ..--� fS] � � a""� (�'} lU 'r- a i m'+' `-'• s�'"' � � W�i rs��?t�C1�?t7 p [II C3 p ��"'' � X � � �� � � � I :--c a+�� � � � A a�'r c�...'�C9C.7C7C7 ��0. � t'3 �' � f� t"""' � e �.t �s�.•. 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C�1��arr.z� BqCl�1t�AF��' COORI��t�F�`�E� 27 '�r�p P���zndarzes 6"c 'Pc��al .���ndara.�s B�undar� �{-L��t �-Left X-C;z��� Y-��gh� So�l Tyge �lb (f�� {��) {��} ��t} �els�w Bn�i 1 Q�r 130 Of� �� 00 �.3� a0 1 � �9 E�C} 130 Ot� 88 0� �.37 80 1 � 8� flC3 133 8t1 89 �0 �.38 2Q 2 9 89 flQ 138 Z�r �� t�(� 190 �{) 1 5 9� QO �9(3 G�S� 1��_ �It� 19 9 t�C� 1 6 i{l7 00 l�]�1 (�Q 12f� L�Q 145 t�i� 1 � �.ZO 00 ��5 OQ ��Q �tQ 159 pCa 1 � I9�7 �3(7 159 0� �.97 00 I.5F3 00 1 � 147 �p 158 Q(� i95 C?0 I�� 00 ,1 1(� 1�� t}Cl 192 0� 204 t�D �9G 40 1 li �t?� C+Q 19fl �1t3 29� �D ��C? C}0 1 12 2�19 00 ��C3 0� 2�7 {}0 22G t�� i 13 2�7 q�I �2� O[J 2�2 �}Cl 223 C�i� ., 14 262 O�J 223 i�Q 277 �10 23t1 �0 1 l� 277 Q�J 230 Clil 3�7 0(7 ��3 DO 1 l� 317 {�{� 233 Ot� 339 5� �36 SO 1 17 s�� 5� 235 5t3 373 Sd 251 QO � 1B �7� 50 251 t�� 38� f�� 255 tt� 3 la 3�� 00 255 [�� 3B� 1�l 257 C�� 5 2Q 3�� �.0 2S7 �Q 38H �10 257 t�b 5 21 368 C}C1 257 OC} 4�17 40 2�7 �0 3 2� 90 i ��C} 257 Qp 4{77 50 ��2 �6 � �3 4�7 SC3 262 7� �Q9 4�l 26� 76 5 2� �fl9 9t3 2�2 76 �3.� 8� �62 76 3 25 �3�5 BD �6� 76 43? ��} 262 �� 5 26 ��7 BQ 2�� 76 457 �� 2�i3 �� 3 27 ��7 60 2�:5 �,Cl �?� k�p �6� 5i7 1 2£� 339 54 �35 5C3 3�i� 8E? �3� �C� 1 2� 34G 8C} 233 5L� 39� 60 �3� 5Q � 3D ��9 6� 2�"s 5C 3�9 7D 23� 5C� 1 3� ��� 7f3 236 �C� 3�� �t# ��� 7�' 1 32 `�$5 9{7 �;� ?� 3S� ��} �55 �lt� 5 3� 3�3� qb 2�7 (��} 3�8 �.�1 245 2� 5 • � .. , 34 388 10 245 20 407 30 250 00 1 35 90� 30 250 00 407 40 257 00 5 36 909 90 262 76 409 50 250 50 5 3� 909 50 250 50 433 20 257 40 1 38 433 20 25� 40 935 �0 258 00 4 39 435 70 258 00 935 80 262 �6 5 40 43� 80 262 �6 93� 90 258 50 5 41 437 90 258 50 95� 60 263 00 1 42 89 00 138 20 219 �0 78 00 2 43 219 70 78 00 385 BO 218 OU 4 49 385 80 218 00 385 90 244 70 5 45 388 10 295 20 388 20 219 70 5 46 388 20 219 70 907 20 235 BD 4 47 407 20 235 80 907 30 250 Ou 5 48 409 50 250 50 909 60 237 50 5 49 409 60 237 50 433 20 257 9D 4 50 88 00 137 80 220 00 �� 00 1 51 220 00 77 00 385 80 216 7C 1 52 385 80 216 70 385 90 206 �0 1 53 385 90 2D6 70 388 10 206 �0 1 59 388 10 206 70 388 20 218 40 1 55 388 20 218 90 407 20 239 50 1 56 907 20 234 50 407 30 229 50 1 57 907 30 229 50 409 50 229 50 1 58 909 50 229 50 909 60 236 20 1 59 909 60 236 20 435 �0 258 00 1 60 935 70 258 00 935 80 255 50 1 61 935 BO 255 50 93� $0 255 50 1 62 937 BO 255 50 937 90 258 50 1 ISdT`ROPIC SOIL PARAMETERS 5 T`ype {s} of Soil Soil Toral Saturared Cohesion Eriction Pore Pressure Piez Type Unit Wr Unit Wt Intercept Angle Pressure Constant Surface t3o (pcf} {pcf) {psf} (deg) Param {psf} No 1 135 0 135 0 2�0 0 36 0 00 0 0 2 135 0 135 0 150 0 19 0 00 0 0 3 130 0 130 0 150 0 39 0 00 0 0 4 120 0 120 0 220 0 26 D 00 0 0 5 150 0 150 0 9400 0 0 00 0 0 A f3orizontal Earthc�uake Loading Coefficient Of 150 I�as Been Assigned A Vertical Earthquake Loading Coefficient Of 000 Has Been Assigned Cavitation Pressure = 0 psf Trial �'ailure Surface Specified $y 18 Coordinate Poi*�ts Point X-Surf Y-Sur� No (ft) (ft} 1 89 00 138 20 2 219 �6 �� 65 3 221 03 �7 86 9 239 30 85 99 ' . • � �. 5 �57 �3 ��] �5 6 �79 79 �.C�] 42 7 291 96 ��9 68 8 3t78 7fl 1�5 63 � :�2� 98 137 24 1G 390 79 195 5t3 11 356 �9 162 37 12 37� 86 175 85 13 385 OS 183 52 14 398 72 244 �� 15 �11 '�7 219 ry1 lf 929 19 235 3� 17 9�a �8 Z51 59 18 99� �9 263 db Fact�� 4� 5a��ty For The Px'eceding Specif,�ed S�arf�ce = 1 32�.