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IMPORTANT INFORMATION ABOUT YOUR GEOTECHNICAL ENGINEERING REPORT ._ ,--'~.-:r..... _ _ ^<~ ..-,.r°7"c^.- and ?.x:?^' c;`, c=- -., ._ - _. ;~d2!3-'. 'r. r?C?r.::l?3rs dUe ~n a-q?~r_,.,-_ -rr.~.$:am:,;n000'ol~ica[:on, of ?,~F= 1~-2 '.~iJ'::a:~if :f _:1~1",2-?r{^~g _.•'71j '~3C:iCln:~ln i ~._ :CdO`.4 r ~ Y~4ge_. enD ~. ~,.. _..~?.'Va[On$ 22 of;ered .~ . ?!p .. _ :?^_LC? :~ ~ ,?Vi?'_~'l. ~.ii-r°_id ie7 i7 eia~'s. _-:. =.-. - _ ;,a of^e. ;~sa. -eadaches :nat can A GEOTECHNICAL ENGINEERING REPORT IS BASED ON A UNIQUE SET OF PROTECT-SPECIFIC FACTORS A gedtechnical engineering report is based on a subsur- face exploration plan designed [o incorporate a unique set of protect-specific factors. These typically include: [he general nature of the structure Involved. its size and configuration. the location of the structure on the site and its orientation, physical concomitants such as access roads. parking lots. and underground utilities. and the level of additional risk which the diem assumed by virtue of limitations imposed upon the exploratory program. To help avoid costly problems. consul[ the geotechnical engineer to determine how any factors which change subsequent to the date of the report may affect its recommendations. Unless your consulting geotechnical engineer indicates otherwise. your aeotecnnical engineering report should not 6e used. • when [he nature of the proposed structure is changed For example. if an office building will be erected instead of a parking garage. or iF a refriger- ated •.varehouse will be built instead of an unre- fng?rated one • •uhen the si== or configuration of the proposed s[rUC:Ure is 31[?red • w~he^ ;he !ecaaon or oven to C!On Of :h? p[Opo52d StruC:u2 s -0dified. .'uhen .here s a change of o4vnrship or • `.Cr acplicanon ro an adiac?n; sr.?. Grotzainital enainrers cmrnot atczpt rzs?ansibdau for problems wlilCn mau .irerlan if they arz not con;u!tzd aftrr (actors consid- zrrd to :Nrlr •zporCi leveio?ment have chanced. MOST GEOTECHNICAL "FINDINGS" ARE PROFESSIONAL ESTIMATES Sits ?xplorcor icenuf:es actual subsurfacecondi[ions Iy at these pours where samples are taken. when ?•: Ire taken Dato de!r,ed through sampling and sub- 5euuenC 13C4)ra0.~r: [e5ting 3ro o.xCrapOla[ed by ge0- „'~c,:e=; :'•isr.:_: ._.. -. _c. :~crocrat?:ow~da- cc >>.~;- ~.?^ --.- =c: -.:, ~___rrs-anc?s actcal ~nci:.,. ns rrac ar:?: r-~ ., :-., s? 'r r=•. _.. [o e.x s; C?caps?,`_ g?O['_C. ^:ca _ - c_. ^O !^a Cef h04+~ C'13!C'?''. -.•".d ..^A i~~CSJ-'aCc es p:Cra CIO r. prCg2 Cl. nC ".a C°_: :.C'.l =O"'f=r`~.c.^i:'.2 =a...=.°~I 'b'.^.ci :5 f'.!dC2n Cy ?ar:r. r.'?G ano iIC? ? aC'_a! inie':dCe 0?C0.'een maCe- ..ads__.c_...-mc:e=.c~a _t ;_._;.:t`,anareoor wCa:?s ..: ~ai__. Ci: Cns - _. ~s nOi samples .-,ay ,.'fie!'-~r^or?~~ic:i^r; `:a!:I~,:,star!^eaone[o?rer¢nttRe 71:an.!'.:?atea Ntrt iti?5 :apt ?i is CFn io 4r!? mllllm CZ :net' impact For :~rls r?ason. mess zc^er;znCZd owners retain their geotecnn¢a.' :ansuftant; thraugn t11e canstruchon stage, to iden- tify vzriances. conduct additional tests which may be needed. and [o recommend solutions to problems encountered on sne. SUBSURFACE CONDITIONS CAN CHANGE Subsurface conditions may be modified by constantly- changing natural Forces. Because a geotechnical engi- neering report is based on conditions which existed at the time of subsurface exploration, construction decisions should not 6e based :'n a geotechnical engineering report whose ad¢quacu mau have i'een a(/ected bu time. Speak with the geo- technical consultant to learn if additional tests are advisable before construction ;tarts. Construuloc op?rnons at or adjacent [o the site and natural ?vents such as floods. earthquakes or ground- waterfluctuations may also affect subsurface conditions and. thus. [he continuing adecuacy of a geotechnical report. The geotechnical engin~r should be kept apprised of any such events, ar.d should be consulted co determine if additional tests are necessary. GEOTECHNICAL SERVICES ARE PERFORMED FOR SPECIFIC PURPOSES ,SND PERSONS G?aechnic_I ?ngine?r :eoor-s ate crepared ro meet the soeufic needs of seec:fic ~rdh:,duals A report pr=- pared for a consulting Ctvii =..^.g:seer may no[ be ade- quate for a construcnor. ronvacor. or even some other consultng civil engineer Unles indicated otherwise. [his report '.vas prepared ?.xpressiy For the diem im•olved and expressly' for puroeses indicated oy the client. Use by amp other persons fer ac}; purges?. er by the diea[ for a ddferent eu:pese. mar resui[ ir. problems. No Indi- vidual atlier tha;r :he c!iinf >nauld ape~u tNS rz?art far lis In[rndzd ?urpasr uitRatl[ Jir>t ::n(rr':na ~'::%I ;he gz:l[rchnical engineer No ec ,on sliuuld ~rriu tha 'rport !ar anti 7urpasz other than that ar.gm~dlu :untzmpla[zd w'.thau[ nrse.tanfen;ng wrtN the-Jeatei~inli Al inguKi'