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B A K E R S F I E L D F~ Transmittal COVER SHEET FIRE DEPARTMENT PREVENTION SERVICES 1715 Chester Avenue · Bakersfield, CA 93301 Business Phone (661) 326-3979 · FAX (661) 852-2172 COMPANY: FROM: March 30, 2004 Ms. Ann Cheung, Realtor GMAC Stroope Realtors 4800 Easton Drive, Suite F Bakersfield, CA 93309 RE: Property at Southwest Comer of Union Avenue & 18th Street FiRE CHIEF ,RON --RgZE Dear Ms. Cheung: ADMINISTRATIVE SERVICES 2101 "H" Street Bakersfield, CA 93301 This is to inform you that this department has reviewed the Completion of VOICE (661)326-3941 Investigation letter, dated November 17, 1989, issued by the Kern County FAX (661) 395-1349 Environmental Health Services Department associated with the Site Assessment SUPPRESSION SERVICES Report performed by Moore & Taber Geotechnical Engineers and Geologists on 2101 "H" Street November 15, 1989. Bakersfield, CA 93301 VOICE (661)326-3941 FAX (661) 395-1349 Based upon the information provided, this department has determined that appropriate assessment actions were performed, that acceptable practices were PREVENTION SERVICES implemented, and that, at this time, no further investigation, remedial or removal FIRE SAFETY SERVICES · ENVIRONMENTAL SERVICES 1715 CheslerAve. action or monitoring is required at the above stated address. Bakersfield, CA 93301 VOICE (661 ) 326-3979 FAX (661)326-0576 Nothing in this determination shall constitute or be construed as a satisfaction or release from liability for any conditions or claims arising as a result of PUBLIC EDUCATION past, current, or future operations at this location. Nothing in this determination is 1715 Chester Ave. Bakersfield, CA 93301 intended or shall be construed to limit the rights of any parties with respect to claims VOICE (661) 326-3696 arising out of or relating to deposit or disposal at any other location of substances FAX (661) 326-0576 removed from the site. Nothing in this determination is intended or shall be FIRE INVESTIGATION construed to limit or preclude the Regional Water Quality Control Board or any 1715 Chester Ave. other agency from taking any further enforcement actions. Bakersfield, CA 93301 VOICE (661) 326-3951 FAX (661) 326-0576 This letter does not relieve the property owner of any responsibilities mandated under the California Health and Safety Code and California Water Code if TRAINING DIVISION 5642 VictorAve. existing, additional, or previously unidentified contamination at the site causes or Bakersfield, ca 93308 threatens to cause pollution or nuisance or is found to pose a threat to public health VOICE (661) 399-4697 FAX (661) 399-5763 or water quality. If you have any questions regarding this matter, please contact me at (661) 326-3649. Sincerely, Howard H. Wines, III Hazardous Materials Specialist Registered Geologist No. 7239 Office of Environmental Services GARY J. WICKS 21'00 M Street, Aga~cy Director Bakorlfleld, CA 03301 ~~-,~"""'~:' · Telecopler (80S) 861-~ ~':" ':".:E N T G ~ N C Y November 17, 1989 Mr. Philip C. Holland Box 803~ Rowlan~ Heights, California 91748 S'UBJECT ~ $i~e Assessment Report, 18th and Union Avenue, Bakersfield, California Ds, ar Mr. Holland: T~is letter oonfirm~ the completion of site inve~tiqation at the a~,ove site. With the provision that the information Drovide~ to tRis agency was accurate and representative of existing oonditions, it is the position of this office that ~o further action r;,q~ired at this time. Please be advise~ that this letter ~oes not relieve you of any liability un,er the California Health and Safety Code or Water Code for past, present, or futur~ operations at the sit~. Nor does it relieve you of the responsibility to olean uD existing, additional, or previously unidentified conditions at ~h~ site which cause threaten to caus~ pollution or nuisance or otherwiss pose a ~hreat to water quality or public health. A~[~itionally, b~ advise~ that changes in the present or propose~ u;~e of the site may require further site ~haracterization and mitigation aotivity. It is the p~operty owner's responsibility to notify this agency of any changes in report content, future contamination findings, or site usage. If you have any questions regarding this matter, pleas~ contact Dolores Gough at (805) 861-3636. Program Environmental Heal[h Services Department CB: cas ~holland. 1 ~r PhiliD C. Holland Box 8039 Rowland Heights, CA 91748 (213) 691-1839 November 15, 1989 Ms. Dolores ~ough F/~VIRO~AL HEALTH DEPARTMENT County of Kern 2700 "M" Street, Suite 300 Bakersfield, California '93301 Re: Soil Assessment Report Union Avenue & 18th Street (Southwest corner) Dear Ms. Gough, Per our telephone conversation of today I a~n enclosing the results of the tests made on November 14th at 15, 20, and 25 feet and which show no detectable gasoline or diesel residue at these leve~s. I wo'uld appredciate it very much If I could pick up your "closure" letter on Friday. I'll give you a call before ¢om£ng in. My wife and I thank you for your help in this matter. 6ZI-~ O~O/9ZO'd 96~-1 OtOZ~£9t99+ OW4~ S~011¥~B ~dOO~flS~O~'~ ~d~O:t,O ARE TRANSMITTING TR~ FOLLOWING: If you do not receive all =he pages, please call us as soon ~,ossibl~ at (805) 833-1743. Operator ....... ---' ~''l 81Z-~ 090/IZO'd 981-1 010Z~9199+ 3Wi9 S~OllV]a ~dOOal$~Oa] ~d~O:~O kOOZ-SZ-a~ ~ O C) I~ I=' ~ TA ~ I~ R GEOTIK,'HNICAI. ENGINEERS AND GEO-OGI$'r$ 6620 I;)ISTRICT 6OUI. EVARO, 6UITE 103 · OAK;RSFIBU3, CALIFORNIA B8313 {B08) 8(38. t745 * FAX: (BOB) B33.~?05 November 15, 1989 Job No. 589-1~9 'Z~een Isle Development Company Box 8039 '~owlan4 Heights, CA Dear Mr. Holland, Attached are the results of =he a~itional requested for BTX and TPH of the U~lon 'Avenue and ~8~h Street s~te. one bo={ng (B-~) was ~r~lle~ adjacent to the Dreviously 9er~ormed 3. Sam91es Were ob~aine4, ~sing Drooedures noted in our report Df o:~ober 3~, 1989, at 4eg~hg of ~5, 20 an~ 2S fee%. ~e'boring attached. Laboratory tests showed ~o deteutable ~TX o= TP~ for e%ther gasoline or diesel residue in any of the three samples. assistance, ~lease contact ~his office. MOORZ & P~incipal ~nginee~ gno: Test BOring Log ~a~orator~ Te~t Re~ul~ Chain of Custody 611-~ 090/e~-O'd 98t-.L 010Z~£9199+ 3Wt9 Sa0ilV;a ~dOOHISJ~OH~ I~d'PO:l,O kOOZ-6Z-~lVlq T EST G LO~ T~-~-'' '~'" ~°Ho~-~m ~u_,~r ...... '[~L~V~'--~his~n,.,~,d~ -[~oa~-O--'-s' - ~ill: Brown fine to coarse s~ TY 5AND ! '~~~ __.. . ..... __. '~i.~j Natural: Gray f~ne SA~D ~nterhedded 1 [~ with fine sandy silt lenses ~00 9 1.4 1 ~[~v,.~ 5P ...fine sandy silt lenses 41 26 1.4 2 I~?i; ...fine gravel 0 34 1,4 3 ~j ML I - ~ ~" ~ND LOCX*IO~ INDI{AT~D. ~BSUR~AC~ BZ2-~ 090/6Z0'~ 98i-~ 010Z969199+ 3~9 SaO~gV)~ )~OOB~S~ ~VO:~O LABORATORIES, INC. 4100 PIERCE RD, BAK~R~FIELO, OAL. I;ORNI~ g330a pMONF 327.491t }~rsZL~ld, CA 93323 At~nti~: ~y Walsh DATE ~ ~TK ~E DATE ~4-N~v-89 14-N~-89 14-Nov-89 ~%i~% Uni~ Eesul~ ~vel ~ene ~i~ n~e de~o~ 0.02 To%u~e ~/~ n~e 6e~d 0.0~ ~-~l~e ~/~ none ~~ O. 02 ~lene ug/~ none ~~ O. O~ o-~e~e ~/~ none ' ~~~na ~g none de~ ~0, O0 T~i~T MMIMOD~ TM{ for Diesel ~;/ D,O.I{,$. (~n Dt~ulfide ~tra~tLon). [~ivid~] ~A Met~ 8020. ~d~~ u~ilizing a diesel ¢~lifo~ie D.O,H.{~, ~ ~t~l~ ~, . I ~ ..... ,~ L 8i1-~ OgO/O~O'd 98I-1 010Z~9199+ 3~9 ~011V;~ ~dOOBIS~O~ ~d~O:~O kOOZ-SZ-~ (SO:H.) ~le ~a~: Job ~5B9-t29 ~r~r~ 5 S~le 2 1~/~4/89 ~ 1005 DATE SAMPLE DATE 8AMPLE DATE SAMPLE DATE COLLECTED: ~IV~D ~ LAB: D~T~A~I~D: 14,-Nov-B~ 14-~0v-88 ~ 4-N~v-89 14-Nc~-89 . Benzene ~/~ ~ne ~e~ O, 02 Tolue~ ~/~ none ~~ O. gt~l ~ene ~ none de~ 0.02 ~-~le~ ~g n~e de~d O, 02 m~Xy I~ne ~ n~e de~d O.OZ =-~lene ~/~ n~e de~ O. 02 METHOD; TPH for Die,~el b7 D.O.H,~. L.U.~',T M~,,.~l Me%hc~l Disulfide ~ra~ion). Individ,~]. ~ons*,i~ent,~ ~ Met~ 8020, dalifornia D.O.H.S. Th~ pe%mgle~ '~o the cc~ti~ent~ s~ifieall~ defined. 8Zl-d OSO/I£O'~ 98[-A OLOZS£9199+ 3~9 S~OilY~ ]dOOalS-~Oa~ ~dSO:kO kOOZ-Sa-~ LABORATORIES, INC. 4100 PIERCE RD,. E~AK~RSFI~LO, CAC1FORNIA 93301! ~'HONti 327.~911 :~ersfi~ld, C~ 93313 ,~%~l~m' ~y Wal~h 'lab No.: 8017-~ :~reX. ~c: JoB ~rt~ 5 ~le 3 ~1/1~89 ~ [020 14-~-8~ 14'N~-BB 14-~v-89 14-Hov-89 ~nsti~Aent Un~ Resul~ ~vel Toluene ~g n~ ~e~ 0.0~ i~l ~nzene ~/~ ~e ae~ O. 02 p-~lene ~/g none de~a O, 02 o-~lene ~/g none do~ O. 02 To~l Pet. , ~c~ ~/g none de~ t0. Oo T~I' M~OD: TPH ~or Diesel bM D.O.H.S, b,U,F.T Manual (r~rt Di~l~ide ~tr~c~iem), ~[vidual ~ ~t~ 8020. a~ N~.eiv~ I 81Z-d O~O/Z£O'd 98L-1 010ZS£9199+ 3~U S~01qV~ BdOONIS-V{ON~ fld~O:~O kOOZ-6Z-~ LABORATORIES, INC. 4100 PIERCE RD., 8AKERaFIELO,~ALIFORNIA 9330s P~ONS 327-4911 5620 D[s%~[~ 81vd ~. 103 ~ Sp[~ ~D, 884'7=1 ~r~field, CA 93313 G~i ity ~ntrol ~0~ ~b NOs; BOI?'~, ~0Z7-2, 9017-3 spikeS, ~ ~en~e ~ve~ (~ ~) of ~?m spt,~ i~ a relative r~ of the aC~a~ Of %~ ~lysis. ~e co,~rison Ot t~ Tolu~e O. O0 ~. 18 9~. 40 94. ~8 ~1 ~e 0.00 ~, 01 95.24 96,4B l, 29 ~~e 0.O0 ' ~,08 .94.84 96,32 0.72 m-~y[ene 0.00 5.0[ 98,90 99.93 o-~lene 0,00 5,00 98.85 97.96 ~ ~esel 0.00 100.0l [[2,6? 107,72 4.49 LABORATORIES. INC. 4100 PIERCE RD, ~AKERSFIELD, CALIFORNIA 93306 PHONE 327.4g~1 Furg~atole (SOIL) 58~0 District ~lvd S~, lO3 Re~rt: ~rsfield, Oh 93313 At~tlOn: ~y W~sh ~le ~sc~ Job ~589-129 ~=i~ 5 ~ie I 11/1~89 e 0950 DAT~ 9AItYTu{ DATE SABLE 'DATE ANALYSIS C. ObblF~EI); r.~EZVED · h~: 14-Roy-89 14-Nov-89 14-Nov-S9' Mini~ ~ns~t~n~ Unt~ ~es~l~ ~vel ~ene ~/~ none ~~ O, OZ ' Tolue~ ~g none de~ O. 02 E~I ~ene ~g n~e ~e~ O. 02 ~,~le~ ~ none de~ 0.02 ~lene ~g n~e ~e~ O. 02 o-~lene ~/8 none de~ O, 02 To~ Pet~le~ Zn~tvma~l c~ti+,uen~ ~ ~A ~ 8020. LABORATO RIF-S INC. (SO'IT.,) 5~20 OLd,riot Bled ~. ~0~ ~rir~ ~ S~le 2 ~1/14/89 ~ tNOS , ~veL ~e ~g none de~ O. O~ 0.02 Toluen~ , n~e ~1 ~.zene ~ O. 02 ~.~%ene ~/g none ~~ O. O~ ~lene ~ n~e ae~ 00~ To~l ~e~le~ noue de~ 5, oO ~~~ ~ , . .... -.-. Indiv~.d~1 o~ti~en~ ~ ~A ~t~ 8020. ____~ -" FAX COVER SHEET PHONE NUMBEI:I: C',MAC Real Estate ~ 4800 Easton Drive, Suite F ~"""""~ Bakersfield, California ..o..~ _.. 93309 622-~ lO0'd 981-1 010Zg£9199+ M O O R E ;, TA lEI E R OEOTEC~N~C~. AND ENVIRONMENTAl. CONSULTANTS 5620 DISTRICT BOULEVARD. SUITE 103' · liAKEI~SRIELD0 CALIFOFINIA 93313 (806) $aa-1}'43 · FAX: (cos) 833.2705 GEOTECHNICAL INVESTIGATION Commercial Building Southwest Corner of Union Avenue & 18th Street Bakersfield, California CLIENT Green Isle Development Company P.O. Box 8039 Rowland Heights, C.~.lifon31a 91748 July 9, 1990 Job No. 590-I30 8lZ-d' ZOO'd 96l-1 010ZG£9199+ 3~9 sao~q¥;a ~800al$~oa~ ~8z9:£0 Table o~ Conten~ ~EOTEC~~ ~S~A~ON ~RODU~ON .................................................. ~ose ..................................................... Proje~ Des~p~on ............................................ S~pe of Work ................................................ ~IL~ ~ ~O~TORY ~S~GA~ON .......................... 3 Subs~face E~lorafi~n ......................................... 3 ~borato~ Tes~ .............................................. 3 SI~ CO~I~ONS ...................................... , ......... 3 S~aee Confli~o~ ............................................. E~ Matefi~s ............................................... 4 Gro~flwater Con~ti0~ ........................................ D~ION ~COM~A~ONS ...................................... 4 Gener~ ..................................................... 4 Be~i~ ~pad~ - Couven~ona ~o~flatio~ ......................... 4 Re~st~ce to ~ter~ Sog Remov~ ................................................. ~cava~ou Ch~acte~s~cs ........... ' ......................... .... 6 Tempor~ ~va~o~ ..~ ....................................... 6 Volume S~age ............................................. · 6 Moisture.Condi~o~ .......................................... 6 Gener~ Site ~ad~g Recomme~fla~o~ ............................ 9a~ement Sub~ade ............................................ 7 CLOS~ .. ......... . . .. · Geotee~c~ Re~ ............... 7 ~tafio~ .................................................. 7 Test Bo~ ~ .............................. A-1 or ~borato~ Test~ ........................................ B-1 ~ofl .Test Res~ .................. ; ....................... B-2 .Conso~flafion Test - Pressure ~es .......................... B-3 Guide Speci~cafio~ ~or Placement of Fffi ~d Bac~ll ............. C-1 Job No. 590-130 - J~y 9, 1990 i M O O 13~ I=' ~ T A I~ I~' R eEOTECHNICAL AND ENVIRONMENTAL CONSULTANTS GEOTECHNICAL INVESTIGATION INTRODUCTION _PA~_ ose This report presents the results of a geotcchnicai investigation for the proposed commercial building to be located on thc southwest corner of Union Avenue and 18th Street in Bakersfield, California. Thc purpose of the investigation was to evaluate the general soil /md foundation conditions encountered within the site and provide geotcchnically related parameters to aid in the project design. Thc study focused on selected gcotechnical properties of the foundation soils. Previous envirotechnical investigations were performed wh/.eh addressed the possible presence of tox/c or hazardous substances. Boring log data from earl/er enviroteehnical investigations conducted for this site (Job No. 589-129, dated October 31, 1989 and November 15, 1989) have been utilized in this stu, dy. ~:ieet Descoption The proposed project will cons/st of a single-stOry, Type V structure of approximately 5,500 square feet. Asphalt concrete paving will be provided for a parking area which will aceommodme approxim_~tely 26 veMcles. Our investigation included subsurface exploration, soil sampling, laborato~ testing, enl]tneering analyses and prep~ation of this written report. The scope of work included performance of the following tasks, ,,. Excavation of two (2) test borings [in addition to the'previous five (5) test borings]. ... Visual classification /tad logging of substrata encountered in each test excavation. ... Laboratory testing of selected soil samples. ... Assessment of geotechp..ical factors affecting tho design of the proposed fae/ligt. Job No. 590-130 - July 9, 1990 2 8li-J POO'd 981-1 010ZS£9199+ 0~9 S~0Z9¥3~ 3dOOBZS.-t/tOBJ ~dZS:$O ~OOZ-SZ-B~ M O O R J~. ~ '"F'A E~ E~ R C~OTEOHNICAL AND ~ME~AL CONSULT~S ... Pro,sion of recommendafio~ peking to potenfi~ settlement, s~~ dc~ p~ameters ~d site grading. FIELD ~D ~O~TORY I~S~GkTION Subsurface Exploration ~e sub~ace ~lorafion was performed in May, 1990, ~d co~isted of ~o (2) 8- inch di~eter ho~ow-stem auger bor~gs. ~e ~o test bor~ were excavated to dep~s of 2(. feet ~d 21 fcc~ rcspemively. The prcdous subs~ace ~loradom peffomed October and November, 1989 core, ted of five (5) 8-~ch di~eter ho~ow-stem auger bo~. ~ese test bor~gs r~ged ~ depth ~om 5.5 f~et to 25.5 feet. Det~s to th.~ ~loration opera,om ~d locafio~ of the test ~cavafio~ ~e presented on the ~ca'~on of Field Tests ~aw~g ~ Append~ ~ ~e test lo~o~ ~e b~ed on ~s~ a~gm~ent ~d roped meas~emen~, ~d should be co~idered ~ppro~ate. Bo~ bu~ ~d ~-sim staples of selem~d fo~dafion soils were obt~iued ~om excavations for laboraw~ test~g. S~ples were obtained by me~ of 2.5-inch I.D. ~d 1.4- in~ I,D. s~plers dfiwn by a 14~pound h~er dropping 30 in, es. ~e latter samp~g w~ in co,ore,ce ~th ASTM D1585. ~e excavation ~d s~p~ng operations were peffo~cd under the ~rect supe~sion of a sc~or ~ng~eer ~om t~ o~ce, who lo~ed excavafiom ~d prepped ~e samples for subsequem exa.m~ation ~d laborato~ t~g. ~borato~ tes~ were peffo~ed to pro~d~ a b~is for reco~cndafiom. ~ ~-situ samp~[es reit/eyed ~om ~e excavatio~ were tested to deter~ moist~e content ~d demi'~. Selected s~ples were tested to deterge she~ streW, co~o~dafion ch~acteristi~, m~um ~ de,iF, ~ion ch~acterisfi~ ~d concentration of soluble sulph.ates. ~e re~5 of ~e mois~re ~d demi~ tests ~e sho~ on th~ Test Bor~g ~gs. A brief des~pfion of the o~er laborato~ testing proced~es ~d ~e test r~sults presented ~ Appen~ B. ~e project site is a ne~ly yacht lot ~ a m~o~ t~h conifer s~c~e, H~t st~d.i~d piers, an elect~ tr~fomer, ~d is p~fially paved on ~e e~tem site Is rect~ in shape ~d me~es appr~mately 122 feet ~ 143 feet, be~g longer along U~on Avenue. Vegetation ~ ~al, except for ~ee trees ~th ~ diamete~ of appro~ately fo~ ~ches. ~e site is relatively fla~ ~th no more th~ ~o feet of r~ef be~aen prope~ Job No. 590-130 - July 9, 1990 3 81l-J ~O0'd 98L-1 010ZS£9199+ 9~9 saolqv;a ~dOOalS~OaJ ~dSS:£O kOOZ-6Z-aVIAI M O O R I~ & TAB E: R ~I=OTI~OHNI~AL AND ~NM~AL CON~ULTANT~ ' ~]~h Mate~_~l~ E~h materi~s were ~su~y cl~sfficd in thc ~eld accor~ng to ~e U~cd SoR Classi~cation System by c~e~l ex.nation of ~e s~plcs ~d con~uous obsc~ation of ~e bor~g re~.. A des~ip~on of t~ ~s~ca~on s~tcm is presented at ~ ~on~ of Appen~ ~ F~ matefi~ enco~tered comisted of sflW s~ds ~hat were moderately dele. Und~l~g ~ ~l soils ~e ~e- to me~um-~ed r~la~vely cle~ s~& ~ scattered ~aveI, A more det~lcd des~ptiou of the e~ ~te~s enco~tered ~ ~ven on the Test Bo~g ~gs arrayed ~o ~s report. ~und~te~Conditio~s No ground water ~gr~gd or static) w~ eu~unt~red ~ ~y of ~e e~Ioratio~. ~ Water Supply Repo~ (May, 1989) by tho Kern Co~ Water Ageu~ ~catos that ~c ~o~mdwater level is ~ excess of 150 feet deep ~d ~ ~ly not have ~y e~ect on the proposed commerci~ b~d{~g. DESIGN ~CO~NDATIONS ~ old ~ so~s located on ~ site ~e no~ adequate ~ the~ present state to support s~,:tures w~ ca~ot tolerate sight ~ffcrenfi~ set~ement (appro~mately ~ ~ch over a horizont~ dist~ce of 2~ ~eet or less). I~ ~ ~eco~ended xhat ~e ~ so~s b~ow thc proposed buil~ng be remowd ~d re~mpa~ed ~ ~ eng~eered ~. M~um sot~cment of ii,is ~ h~ been c~lated ~d is ~ven ~ a later sec~on for de~ pu~oses. ~e na~ve so~ enco~ored bolow ~e ~ ~e s~tablg for foundation suppo~ of proposed s~es. ~ ~temafive to recompac~on of ~e old ~H so~s is to ~nd ~e proposed founda~oas to reach dele naive s~ds. A ~o-sack s~d-sl~ may be used to b~g the deepened ~oot~g ex,ration back to ~g orig~ lo,clarion dopes. ~oor slab sup~o~t c~ bc a~eved by recomp~ti~g ~he upper 1.S feet of ~st~g soil. ~e ~ol]o~ng des{gn p~e~ers ~e b~ed upo~ removal ~d recompaction o~ ~mble ~1 so~s (where possible) ~d placgment of fo~da~o~ oa either dc~e naive so~s or properly compacted ~ ~ng CaOaci~ - Conven~on~ Fo~dation~ ~c ~owable ve~ berg capaci~ of fo~dafio~ ~ be dependent upon the ~dth ~d dgp~ of embe~en~ ~d setIlement ~terim The ~owable berg pr~ssur~ ~ffi lob No. 590-1~0 - J~y 9, ~990 4 8~Z-~ 900'd 96L-~ OlOZG£gt99+ 3W49 SaOlqV;a ~dooal$.-PlOa] wd86:£0 Pooz-6z-a~ M O O R E. ~ TA E~ ~ I~ eEOT£C, HNIQAL AND ENVIRONMENTAL CONSULTANTS respect to sol] shear strength for foundations placed on either properly compacted fill Or deme native soils can be deterraiued from the following expressions: Permanent Loading Total Combined Loading (dead load + long~ (dead load + live load term live load) _ _. +..~eisIl~ic, wind. etc.) Allowable Bearing Pressure (psf) 200B + 500D + 1600 325B + ??SD + .2400 [$h,;ar consideration oul,.,] In these expressions, B represents the foundation width and I) the depth of the foundation base below the lowest adjacent ground surface (both values are in feet). The bearing values determined represent net pressures. Therefore, the weight of the embedded portion of the foundation need not be included in the total load when sizing foundations, Es/[~nated .Foundation Settlement For light loads (e~timated to be less than 2 kips/foot or 30 kips), it is anti¢ipaed that, within structural areas, the maximum settlement will not exceed one inch and that the maximum differential settlement between similarly loaded elements in a horizontal distance of 20 feet will not exceed IA inch. Resil!~.a_nce to Lfi[¢ral Loads Lateral loads may be resisted by friction acting along the base of foundations or passive lateral bearing against foundations. The 'allowable frictional coefficient between the [ooti..~gs and supportin§ soil is 0,23 for static loading and 0.28 for total combined loading. SITE GRADING To provide a s~able foundation with regard to potential total and differential setfle, meut, the upper variable fill soils should be removed from beneath the proposed building and properly recompacted. The excavation should extend to a depth of four (4) to eight (8) feet and ex-tend laterally outside the budding footprint a distance equal to the deptt:~ of removal, Within proposed pavement areas, the upper cmo (1) foot sho{lld be scarified, moisture conditioned and compacted to 90% rdative compaction, The building remo'¢al area and proposed pavement areas should be brought to t%!sh grade with properly compacted fill as noted in the following "Genera Site Grading Recommendations". Job No. 590-130 - July 9, 1990 5 811-~ ZO0'd 96t-1 010Z~£9199+ ~Wi9 $~01~¥;~ !d00~l$-~0~i WdB6:~O M O O R ir ~. TA El I= I~ (~EOTEOHNIOAI. AND ENVIFtONlvlaNTAL CONSULTANTS .Excnyation Characteristics No appreciable difficulty is expected w/th excavation performed by conventional gradin§ equipment, ~l~porar~_ Excavations The non-cohesive softs enc0untcrcd at the site arc not expected to stand vertically for sig~i~cant lengths of t/me/n cuts $ feet or h/gher. Most of the soft5 encountered are expected to bc temporarily stable on a gradient o£ about 1:1 (horizonta/:vcrfical) to a height oi about 15 feet. Localized steeperflng or flattening may be required. In this context, ten:..porarily mc:m.~ a time period of less than 60 days, and in the absence of inclement weE.ther. All regulations of the State Division o£ Industrial Safety should bc folIowcd before allowing workmen in a trench or to work at the base of the excavation. If excavations arc to be made durint the rainy scason~ particular care should bc ~ivcn to ensure tha~ bern~ or other devices will prevent surface water/rom flowing over the top of the excavation or pondinE at thc top of thc excavation, B~ed on the available information, it is anticipated a volume loss of about 15% to 20~ will occur from cut to fill yardage in thc removal and recompaction of old _~j.sture Conditionin_~ Construction watering wffi bc required to achieve necessary soft moisture. Experience has shown compaction d/fficuky can restflt if fill softs arc not allowed moisture cure prior to at~empflng compaction. The grad/n~ contractor should be prepared to prov/dc water during thc excavation procc~ and stockp~c the moisture cond/t/oncd soil, as r.ecessar7, to allow for curing, Ge~..eral Site Gradin~ Recommendat_ions Ail site gr~dint operations should conform with applicable local bufld/nt and safety cod,:s and to thc rules and rC~,~Lflati0ns Of those regulator7 agencies having jt~risd/c~ion over the subject comtruction, The ~rading contractor is responsible to notif7 rcgulator~ agencies, as r~quired, and the teotechn/ca! en~neer at the sta~ of site clean-up, the/n/t/at/on of grading, and any t/me that grading opcration.~ are resumed 'after an interruption. ~ach step of the gr~d/ng should be approved in a specific area by the geotechnical engineer, and, where required, by the Job No. 5913.130 - July 9, 1990 6 6ZZ-J 800'd 981-1 010Z6£9199+ 3~ saoLq¥~a ~dOOalS~ Wd66:£0 tOOZ-GZ-a'flq M O O F~ ~ ~. T~ B 1~' ~ I~I~OTE(~HNI(~,L AND ENVI~ONM~ ~p~,~bl~ gow~nt~ ag~n~ b~for~ procccd~g ~h ~bs~qu~nt work. A pr~-~ conference ~tlendsd by at le~t ~ r~pres~ntadve of th~ o~cr, gcotec~c~ en~eer ~ad~g ~nwactor is r~co~mend~d. ~e ~ide spec~ca~o~ for plac~mcnt of ~ ~d bac~ ~t~d ~ Append~ ~ shoed b~ reg~d8d ~ ~ ~d shoed bc ink. orated ~th~n th~ project pl~ spe,~catio~, ~ent. ~ub~do Tho sub~o soft in proposed pavement ~ sh~ to a dep~ et 12 ~ches, be moisture ~ndi~on~d ~d u~fo~y ~mpact~d to at l~t 90~ r~tivo Pro~s~in~ (moisture condi~o~ ~d comp~cffo~) of ~ s~b~ade sho~d b~ p~orm~d immoflial~ly p~or ~o placement of ~ pavement G~ol~c~e~ renew ~ of p~.mount impo~ce ~ en~eer~g pr~c~co. ~e poor pofform~ce of ~y fo~da~o~ h~ be~n at~ibu~fl ~o ~adoquato co~tio~ r~ew. 5it~ cle~n~, r,mov~ of ~1 u~tabl~ soils, prop~r mois~re condiment, approv~ of ~tponed fill mat~ri~s, ~l placem~n~ obse~a~on of fou~a~on ~xcavatio~ ~d o~er si~o gra~ operago~ sho~d bo obse~ed ~d ~ested by ~s office d~i Oeotoch~ obs~ation du~ eo~on is a concretion of ~o investigation ~d not a sep~ate,, u~que ~c~o~ Field renew d~g site ~ad~g ~ows for ~v~on of the e~os~d 50il con~i~o~ ~g eo~firms~on or re,sion o~ the ~sumptio~ ~d t.xtrapolago~ ~ade ~ fo~ula~n~ the d~si~ p~olers ~d recommonda~o~. en~.~ring fi~ o~or ~h~ Moore & Tabor ~ eontra~efl to a~ ~ ~eotech~ during co~tm~ioa they sho~d noti~ ~e o~or, project desirers, tho appropriate ~ove~ent~ a~encies ~d ~ offic~ ~ha~ they have ass~od rcspo~b~ for ~1 (desiga ~d coati,ion) of ~ project ~t~ the pu~ew of ~ ~ote~c~ ong~oor, Nofli[ca~on should ~ca~e ~hey have renewed ~is report ~d ~y subsequont addenda ~ithcr a~ro~ ~ ~ con~usio~ ~d r~co~endago~, or ~ pro~d~ now r~con~n~o~. Limitation! ~s regoa is b~ed on tho Frojoc~ ~ dol~ib~ ad ~o ~o~aton ob~ ~o~ Job No. 590.-130 - July 9, 1990 7 M O O R F_. ~, TAB E R GEOTECHNICAL AND ENVIRONMENTAL GON~ULTANT~ thc test cxca~tio~ at ~e appro~matc locafio~ indicated on ~e pl~. Our ~d~gs b~e(I on thc rcs~]~ o~ ~e field, ]aborato~ ~d o~ce ~vestigatio~ comb~ed ~th interrelation ~d c~apoladon of sou con~tio~ be~ccn ~d beyond the test ~vatio~. The resets reflect our inte~retation of ~e ~m~ted ~e~ e~dence obt~ned. The reco:t~endatiom presemed in this repo~ ~e b~ed on the ~sumption that sufficient field renew (obse~a~o~ ~d tes~) ~11 be prided by tMs o~ee d~g comt~etion. O~ firm should be notified of ~y pe~ent ch~ges in the project plans that differ ~om des~ibed ~ tMs repo~. A' si~ificant v~afion ~y req~e a re-ev~uation reeo=~endafio~ e~ressed ~ ~s repo~. ~is repo~ hm been prepped for ~e ~ desi~ of the described project. It ~y not ~nte~ su~icient ~or~fion for other p~oses. ~ report h~ been prepped aeeord~ee ~th gener~y accepted geotec~c~ prance. We m~ke no o~er w~ties, ei~e:r e~ress or Jay Stuff En~neer Pdncip~ Eng~e~ Re~.~;tered Oeotechnic~ En~eer 674 (~[res December 31, 1993) Distribution: (5) Green Isle Development ~mp~y Arm: ~. P~ Ho~fl Job lqO. 590-130 - July 9, 1990 8 8~Z-J OlO'd 98L-1 010ZS£9199+ 3WI9 Sa0~lV3~ ~d00~lS~0aJ ~88~:£0 APPENDIX A FIELD EXPLORATION 822-~ OgO/iiO'd 98L-i 010ZS£9199+ ~V~9 $~019¥~ ;dO0~l$~O~] ~dOO:kO kOOZ-6Z-~V~ UNIFIED SOIL CLASSIFICATION P'=-'~ .... OH ICH ! MH OL. I EE ! ML "SC I S~' SP I SW OC I ~ ~" S~d~ ~lm flnel Clan ~andlG~vel~ ~1~ fines, Cle~ g~ovlla . fraction Is mmof1~ then N~ 4 slava, fraction It larger fha~ Ng4 alive, (~re f~n ~% ~z s~ll~ T.~ N9 ~ *liv~ C MoKe thru 50~? la ~er ~an Ne 2~ [/ LABORATORY ~ASSIFJCATION CRIT[RIA ~ /' ~d ~-~,D~ gr~df~r thnq 4forGW ~6~SW~B ~ between I&~ Q CN / O~ x O~ i ( GPand SP- Clian gravel or sand ~t meeting requirl~e~tl for OW end ~ ~ and M~ - LIQUID LIMIT Ihould ~t ~ COp~tr~d to imply foboratory analys}s unle.m ~O ...MATER1A~ S_YM_~L~ .CONSISTENCY ~LASSIFiCATION _FO~ SOLES. ~ arf~tc matf~ ACcording to fha ~fondard PanatrafignTesf ~ Sand--~Fill.material Ne of .~. Granular Cohesive Clay Sandstone II -20 , ~ic~pact Stiff s ~ndy clay °r ~ ~ clQyey ~ Llmas~e 21 - 35 Com~cf Ve~ stiff SeXy silt ~ ~ M~r~i¢ ~- ~ ~n~ HQrd ~ silty sand ~ rO¢~ ~SIIfy cle~ or ~ )70 Very de~se Very ~ clayey sift__ Ig~s r~k LEGEND OF BORING ~GEND OF PENETRATION TEST ~0 ~ s~ple' ~ormable ~terlol ~e i3~, I.G'~S' ] sample Appmximo~ mot~ol ~a ~1 _ Ca~g~ ~ Un~ormable ~e~al c~nge - -- - B~~5par fo 3t ; 3 2 ~ ',Using ~0 lb I~ ~ 8°tt°m of ~ri~ har~mar wiff, IO I Graphic rapresentatl~ ~[dmp =3~ 0 - driving rate. fi/ b bh~w) _ MOORE & TABER TEST BORING LOG TYPE IP dia. HolloW-stem auger ]ELEVATION 404.~ feet 6 1.4 103 · 4~2 47 2.S a. 25 ~ ~ , m m ~ ~ ~J ~ ~ COND~ONS ~Y D~FE~ AT OT~K LOOATION9 u m~ [,,, ~ ~ ~ ~ LOGGED BY ~ DA 5.11~0 MOORE & TABER TEST BORING LOG 1,~ 10 ~,$ 8 ~ . NA~'Lvl~Ji-L.' G~aylah-~own fine to mcdlum 8 1.4 4 { O~yl~-bmwn ~ to msdium m T~8 BO~O LOG S~Y ~PLI~S O~Y AT TH~ _ ~ ~ ~D LOCATION INDZ0AT~D, ~ ~ COND~ONS ~Y D~FE~ AT OT~ LOtiONS ~ T~E8. e a LOGGE DA ~11-~ IL_ I .I. l!lllllll 1111 ..... I II I _ ........... I' 111 I I I 9).1-:1 090/910',d 981-.I. 010ZS¢..91994. APPENDIX B IAIIORATORY TESTING & RESULTS 8~.-:{ 060/9LO'd 98L-.L 010Z6£9199+ ::)~D S).IO.L'I¥:I:d 2gdOO~J.LS-PION:I PldtO:t,O t~OOZ-8~.-~{~ M O 0 R E ~ TAB E R GEOTECHNIGAL AND ENVIRONMENTAL CONSULTANTS LABORATORY TESTING In the laboratory, saraples taken from thc test excavations were tested to dctermine moisture content, dry densi~, shear strength, maim_urn dry density and soluble sulphate concentration. The moisture-demity test results are shown on the Test Boring Logs and results of other tests are given on pages B~2 through B-5. Briefly, these tests were conducted as follows. Strength characteristics were determined in the laboratory by direct shear tests per£ormed on selected samples. The specimens were saturated and tested under various norm~d loads in a 2.5-inch I.D. circular shear box using ~ controlled displacement rate of 0.058.inch per minute. The concentration of soluble salphate was determined for a sample of soft in accordance with California Test 417. The maximum dry density and optimum moisture content of a selected sample were fle~er~ained in accordance with ASTM D1557. Job No. 590-130 - Jul), 9, 1990 B-1 SOIL TEST RESULTS Direct Shear Test (ASTM D3080) Shear Stress Boring_. No./ Normal Peak ~h_ear__ at 0.25-inch .~.~!PJ_. ~_ No. Stress Stress ~ ,[~lt~tdl~ta~ (psf) (ps0 (~) (~s0 1/'.£ 1000 712 0.125 631 1/1 2000 1180 0,125 1180 1/1 3000 1720 0.250 1603 2/;? 1000 766 0.100 730 2/;',* 2000 1387 0.075 1180 2/;',* 3000 1900 0.100 1765 2/2. 1000 802 0.100 694 2/2 2000 1297 0. I00 1207 2/3 3000 1855 0.175 1720 Specimcm remolded. Soluble Sulphate Test (C, li¢oraia Test 417) Boring, No,./_S. _ample N~, _SglUblc Snip_hate ( ~ cu-7 w~t) 1/2 0.02 Ma~mum Demity Test (ASTM D1557, Method A) Max~mn.m_ Opt,.'m__um (pc0 (~) 1/2 132.4 7.3 Job No, 590-130 - J'uly 9, 1990 1~2 M O O R E ~,. TAB E R G~OTECHNII~AI. ENGINEERS'ANC{ CON~ ~r./~mpJe N~ 6/4 -~pth 7.5' I ] [I · NATURAL MOISTURE ,.o, I III o SAMPLE SUBMERGED ~.~ II ~1 III II! '~- ~ ~'" I II .gB. ~1 L ~ I i I -.. I~11 ~ .~6 I,.I I[~ .1'I1 .95 I I I. ~N - I llll ,., L ll.i .94 . II l-I ... F II Ill .el IIII ._ I[1 - I1'11 ........ III IllI Ill Illl III I/11' I[I I Ill I 1_._1. I L .87 .~ .. II .. 1111 Ill IIII .8~ II1[ III .8o t11[ II1 '~' [ I I/ , , -I II .78 l I{~ .. {il ' -- ~FII o. fz s o.~ o,m ~ I 4 I PRESSURE ~tofls/sq. ft. 590-130 - ~u~ 9, 1990 B-3 O~O/8LO'a 98L-A OtOZS~gl99+ ~9 sa0~lv~a ~d00a~s~0a~ ~dt0:~0 v00z-sz-a~ MOORE ~ TAI~ER GEOTECHNICALENGiN~ERSANDGEOiOGI$?$ - :SSUR Bor./~ample NI 6/6 -~pth 15.0 ~ " ' I ~ Il ~ ~ERBURDEN PRES~RE o ~.~ .11 ., I JI~ ... .,s I I.I I I i II11 I1[I .ss .... J II .~ Itll IIII .st _. I I" I l II III}' "'I 1111 l_111 .~'-- .. I,,. -- III! Il' I l[.I · 89 llll III! - II,, 1.311 - .e7-- I Ill , IIII II1} " 1111 .e2 I I'H II II. I.LII .e~ II'11 I lll .., 1.111 , , tl ....... II1 .1111 o. m2s o.~ o~ ~ ~ 4 PRESSURE: fons/sq, ff. 590-130 - ~uXy ~, 1990 0g0/0Z0'd 98[-~ 010ZgE9199+ __ CONSOL - PR uR ........ lel~,-.-De4=,.n.'- -'-- .~ ..... ,--- - ,~:~; ....... Bor./Semple N~ 7/2 2.: 0.' e ---- "..' "- [- . ....A OVERBURDEN PRESSURE 1.02 '" ~1 INITIAL MOISTURE · NATURAL MOISTURE 1.01 O SAMPLE SUBMERGED 1.00 ..... [ ;~.,,,. '""-'"-'~.,,-. <-- --- ---. I.._~,~,.~ ~ .97 .g5 _ . ~as compacted :o DO~ o~ maxtmum .94 '~ dens~:~ ~ op:~mum moSs'cure: .s~- cont~ent,. ~ .92 : ,--, .BI ~. I ~ .89 .r ~ .ail < .~7 .$5 .. .8~- _ .81 .. .~0 .Tg~ .78 ....... O. 125 0.2S . ..... PRES~RE ~ tons/5~, ft.~ Oob ~o. 590-130 - ~ui~ 9, 1990 B-5 622-~ O60/[ZO'd 98[-L OlOZS~glg~+ 3~9 ~O~lV;~ ~dOO~LS~ ~dZO:~O ~OOZ-6Z-~ APPENDIX C SPECIAL DETAILS '822-H OgO/ZZO"d 98[-1 OIOZg£gIgg+ 3~O SNOiUV;N BdOOa~S.-t1OaH ~dZO:~O kOOZ-SZ-NVIN AND ENVIRONMENTAL CONSUL'FANT$ GUIDE SPECIFICATIONS FOR PLACEMENT OF FII.I. AND BACKFILL 1. Azeas tO receive compacted site fill or to support foundations, slabs or pavements sb~ be stripped of all vegetation, debris or d/sturbed softs. All existing fill soil shall be excavated unless the Project Geotechnical Engineer specifically directs that such fill is to remain/n place, The exposed soft, loos¢, porous or otherwise unsatisfactory so:ils shall then be excavated to the depths indicated in the lalZn.~ or specifications. The excavation of existing fill or other tmsatisfactory soils shall extend late'Ely b~:yond the Limit of foundations, slabs or pavements the d/stance indicated in the sp,~cifications or plans. The excavated areas shall be observed by the Project G~:otechnical Engineer's field representative prior to placing compacted fill 2, The exposed natural ground sm-face shall then be scarified to a depth of at least six inches, brought to w/thin three percent above opt/mum moisture for the ma, tcr/al, and tb,,.n compacted to at least 90 percent of the max/mum laboratory density as d~;termincd by the ASTM compaction method described below. Where fill is to be placed on or ag_qi,~st sloping ground, benching into firm natural ground shall be performed as the compacted fill is brought to ffna] grade. 3. FiLl, consisting of soil approved by the Project Geotech~icai Engineer, shall be placed in compacted layers with approved compaction equipment. The excavated, natural art-site materials are considered satisfactory for reuse in' the fills. All imported fill shall be examined by the Project Geoteclmical Engineer prior to use in ErLI areas. Rocks larger than six inches in diameter shall not be used. The moisture content of th~ fill soils shall be brought to within three percent above optim-m moisture c¢,n:ent. 4. La~rg¢ cobbles and boulders in ~xcess of six inches/n size shall be placed in windrows at least 15 feet below final grade or slope faces. Sands wad grav. els shall then be flooded into the voids between the cobbles and boulders. Once fl00din~ has been completed, the windrow shall b~ proof-rolled with a D-9 dozer, or equivalent equipment. $. l:'~Jl shall be compacted to at least 90 percent o£ the maxim~.~m laboratory density for the material used. However, pavement base ma.terial shall be compacted to at least 95 percent of the maximum laboratory density for the base material used. The maximum density shall be determined by the ASTM D1557-78 compaction method. 6. C)bservations and field tests shall be carried on during grading by the Project (~,eotechnical Engineer to confirm that the required degree, of compaction has been o'otained. Where compact-ion is less than that required, additional compactive effort Sob No, 590-130 - July 9, 1990 sh~ be m~de ~ adjus~ent o~ ~ moisture con~cnt ~ n~ss~ un~ ~e ~])e~cd compaction ~ obtained. 7. Wherever, ~ ~c op~on of thc ~er's or ~c Project Geote~cd ~n~nccr's r~prescnta~vea, ~ ~s~ble con~tion i~ b~int ~a~d, either ~ ~t~t or 611in~, ~c Work sha~ no~ proceed in that ~ea unt~ ~ ~vesfigafion h~ b~en made ~d thc grail pl~ re.cd, if found W be nccess~. 8. Kc~ay ba~ shoed bc co~cted no steeper ~ a 1:1 (ho~ontd:ve~ic~) EraSer. 9. 't~e Projea En~neer~g Geolo~t shoed obse~e ~e ~osed surface d~ng the r,~mov~ operation to eyE.ate ~xcavafion stab~w ~ confi~ ~at field ~nffi~o~ are ~ ~fidpa~ed. 10. Fo~o~ng ~i~afion of field ~n~fiom ~d/or ~er modi6cafio~ ~e excavated matefiEs may be repl~ed ~thin ~e ke~ay ~ a~rd~a ~ s, pe~catiom. 11. ~ u~W Wen~ bac~s ~h~ be compacted to at le~t 90 percon~ ~cept for pipe ~,edding ~d s~ ~ches of pipe c~er. Job No, 590-130 - July 9, 1990 C-2 8Zi-~ O90/kZO'd 98L-1 0i0Z~£9199+ 3~9 SaOIgY3B ~dOOalS-~Oa~ ~d£O:kO ~OOZ-SZ-a~ LABORATORIES, INC. 4100 PIERCE ~O,. ~AK~R~FIELD, CALIFORNIA 93308 CHONr ~~ield, CA 93313 ~a.b No. :' SOiT-3 ~L~ ~ ~f~Le 3 li/14/89 e 1020 DATE SAMPLE DATIt SAI~IPLE DATE ANALYSIS t 4-~-89 14-~v- 89 14 -N~,v- 89 Ee~~ ~e 1 y~ Ls O~ti~ Uni~ ~eauL~ ~el ~nz~e ~/g none de~ 0,02 T, ulu~e ~g none d~~ 0,02 ~-~l~ ~/g ~ne de~ O. 02 ,~-~lene ~ ~n~ de~ O. 02 c-XyZ~e ~/g none de~ O, 02 [~divid~l e~{sti~en~ ~ ~A .~t~ 80~0. Caltfomt& D.O.H.$, Cern, ~102 6ll-~ 090/9£0'd 961-1 010ZC{£9199+ 3W19 $~{OI1V:I~{ ;dOO~llS.-ViO~{:l itdgO:1~O LABORATORIES. INC. 4100 PIERCE ~O,, ~AKBRSFIEgD, CALIFORNIA 9330~ pHON~ ~7.49~1 M,~o~s ~d Ta~ ~ersfield, ~ 93313 ~or ~ ~a ~ ~e O, O0 5.02 89,98 92, t~ 2.38 Tol~ne O, O0 ~. ~8 83, ~0 94,3B 2, O~ ~t ~ O. O0 5, Ol 95.34 ga. ~ ~, 29 p-~v~e 0,00 5.06 94.84 95,32 0.?2 m-~te~ O,OO B,01 98.~0 89,~3 1 ,O4 o-~m O, O0 5, O0 98,85 9~,98 t. 14 Gas O, O0 301.06 88,46 83. g9 2,90 J L · .~ .............. ..- ~- .-... 8~1-J O~O/i£O'd 98l-1 H O O R E ~ TAB E R GEOTECHNICAL ENGINEERS AND GEOLOGISTS · ... . ~20 DIST~ICTBOUEEVARD0 ~Ul~£1~ o BAKERSFIELD, ~LIFORNIA 93313 · · 833-I 743 (0OS) ..,,.=,o--,-=.. October 31, 1989 ~N~=~O.C~ Job NO. 589-1 29 Mr. ~hil Hollan~ Green Isl~ Development Company P.O. Box 8039 Rowland Heights, CA 9~748 Limited Site Assessment Green Isle Development Company Union Avenue & ]Sth Street (Southwest corner) Bakersfield~ ~alifornia Introductio~ This report presents the results of a limited site assessment study for the proposed Green Isle Development Company Commercial Building. The site is located on the ~outhwest corner of Union Avenue and ~Sth Street in Bakersfield, parcel California. The is presently vacant a~d is partially covered with A.C. pavement. The approximate dimensions of the parcel are 120 feet by 140 feet. Based on information obtained from Milazzo & Associates., previous land use included a gasoline service station located on the eastern portion of the parcel. Reportedly, the service station closed and removed fuel storage tanks in the late 1950's or early 1960's. Pu.rpose The scope of work for this study included-air photo review, site reconnaissance, soil sampling, laboratory analysis, and an attempt to define both the lateral and vertical extent of petroleum-permeated soils. Laboratory analysis included performance of the following tests: ... Gasoline Residue: BTX and Total Petroleum }[ydrocarbons. ·.. Diesel Residue: BTX and Total Petroleum Hydrocarbons. 6).1--I 060/6£0'd 96L-.L 01026£9199+ 3~9 $:qOllV'q~d BdOO~ll$=WO~t:l wdgo:t,O kOOZ-82-~l~ 9~r. Phil Hoiland Page Two Green Isle Development Company ~:ubsurface Exploration The study consisted of four shallow 8-inch diameter hollow- stem auger borings. The test borings ranged in depth from about ~ive ($) to ten (10) feet. A Trace Gas Analyzer (HNU Systems ~:odel PI301) was utilized during drilling and sampling to assist in evaluation of likely contamination. In-place samples were collected by means of a 1.4-inch I.D. standard penetration sampler. Prior to sampling, the sampler was washed with trisodiUm phosphate solution and ringed with distilled water. Soil samples were extruded into glass Jars, which were sealed ~'ith aluminum foil and screw-top lids. The collected samples ~ere stored in an ice chest and taken to a certified laboratory ~or testing and storage. Details pertaining to the exploration operations, Trace Gas analyzer results and locations of the test borings are presented cn the Test Bpring Logs and Location of Field Tests drawing. The test locations are based on visual alignment and taped measurements from identifiable physical features, and should be considered approximate. g,rtal ~hoto~raph Review Aerial photographic data covering the Dro~ect area was flown cn August 3, 1956. In the photograph, a structure appears centrally located in the eastern half of the subject property, and is to be the previously referenced gasoline service presumed station. Groundwater Conditions No ground water (perched or s~atl¢) was encountered in any of the explorations. The 1988 Water Supply Report (May, 1989) by the Kern County Water Agency indicates that the groundwater level is probably in excess of 1~0 feet deep. ~iindin~s Laboratory analysis, as well as field observation and testing, indicates significant gasoline and diesel fuel residue exists within test boring No. 3. The residue appears to diminish downward vertically as well as horizontally toward boring No. 4. l~'one of the samples analyzed contained detectable levels of benzene, and although Total Petroleum Hydrocarbon~ for gasoline residue were reported for sample 3/3 (ten foot depth), the chromatogram reportedly did not exhibit a gasoline fingerprint. Analysis on this same sample did not detect any benzene, toluene 611-:1 Oc~O/O'kO'd 981.-1 010Z~£9199+ ~9 S~OJ.l¥~]~l :~dOONlS~:l ~d/O:'kO ~'OOZ-6Z-~t~ .~r. Phil Holland Page Three Sreen Isle Development Company or xylene. This, and the lack of benzene in the upper sample, would indicate the fuel product is not of recent origin, and is likely associated with the prior gasoline service station pump island or underground fuel storage tanks. Limitations This repo=t is based on the information obtained from the test explorations performed at the approximate locations indicated on the plan. Our findings are based on the results of the field, laboratory and office investigations combined with an and of soil conditions between and interpolation extrapolation beyond the test excavations. The results reflect our interpretation of the limited direct evidence obtained. This report has been prepared in accordance with generally geotechnical practice. We make no other warranties, either express or implied. MOORE & TABER Corey M. Walsh Staff Engineering Geologist David L. Pearson Principal Engineer Registered Geotechnical Engineer 674 (expires December 3~, 1989) CMW/DLP/tr Enc; Lab Results Location of Field Tests Distribution: (2) Green Isle Development Company Attn: Mr. Phil Holland (2) Mila~zo & Associates Attn: Mr. David Milazzo 82~-J O~O/l~O'd ~8l-~ OlOZ~9190+ ~U SNOi3¥3N BdOON&S-~OMJ ~dZO:~O. LABO RATO RIFS, INC. J. J. £C, LIN, Rf::G. C~,1£M. EN~R, P~r~LEU~ 4100 PI~CE RD,, BAkERSFIeLD. CALIFORNIA 93308 PHONE 327-4~11 ( SOIL3 Moore ~d Ta~r ~ of Attention: ~y Walmh ~b No.: 8304-1 ~le ~c: C~ial ~ildi~ - 18~h & Union 3/1 10/~0/89 ~ 8:40 DATg S~ ~T~ ~LE DATE- ~ALYSIS COLLE~: RECEIV~ ~ ~: C~~: 20-~-89 23-~t-89 ~6-~%-89 Mini~. Re~i~ ~alysis Re~r%i~ ~,n~ %ibsen% Uni~ Re~ul ~ ~vel ~,~e~e ~g none ~~ O, O~ Toluene ~/g O. 05 O. 02 Et~l ~nzene %~g O. 19 O. 02 p-,~lene ~/~ O. 27 O. 02 m-.~lene ug/g O. 18 O. 02 o-.~lene ug/g 1.70 O. 02 To~l Pe~lc~ H:,~~ ' ~8 60.55 5. O0 ~T ~OD: ~ for g~oline ~ D,O,H.S. 5,U,~.T, Individual consti~n~ ~ ~A ~%h~ 8020, D:~ ~t~r ~is C.~r~n~: O~ifomia D.O.H,S. ~, ~102 I .J..J. Egl:in . 8/.~.-:1 OGO/ZI, O'~I 98l-1 010Z~£9199+ 3W~9 S~0llV]~ :1d00~1/$~0~4 I~d7.O:~O VOOZ-SZ-~q~ LAE3© RATO RI ES, INO. J. J. EGLIN, ~EG, CNKM. ~r~OL~ 4~d0PIERCE~D., ~A~ERSF1E~O, CALIPORNLA 93308 PHONE327-4~11 (~IL) 5620 Dis~ict Blvd ~03 [{e~: 27-r~t-89 ~ers~ield, CA 93313 A~nt[~: ~rey Walsh ~b ~.: 8304-1 t~r~,le ~sc: 6~rrrr~[~ial ~ildi~ - 18th ,~. Union 3/1 10/20/89 · 8:40 ¢589-129 DATE ~E DATE S~LE DA~ S~LE DA~ ~YSIS (~LLE~: ~CEI~ ~ ~: ~~: CC~~: 20-~t-89 23-(~t-89 24-~t-89 24-~t-89 Min~n Re~,~ing ~alys i s Re~rti~ C~ti~ent Uni~ Resul~ ~vel ~nzene ~/g none de~ O. 02 Toluene '~/g O. 05 O. 02 Et~l ~ene ~/g O. 19 O. 02 ~lene ~g 0.27 O. 02 m-~lene ~/g 0,18 0.02 o-~lene ~/g 1.70 O. 02 To~al Pet. Hy~~r~ ~/~ 201.00 10,00 ~ST ~OD: ~ for Diesel ~ D.O.H.S. L,U.F.T ~1 Metal (~n Disulfid~ ~traction). Individ,~l consti~en~ ~ ~A Meth~ 8020. As R~iv~ PETROLEUM HYD~K)CA~BON$: Quan%ification of petrole~r~ TOTAL kvdrocarbons utilizing a diesel standard as outlined by the. California D.O.H,S. The petroleum, ~drocar~)~nm are in addition to thc ~onstit~ents Specifically d~f~ed. California D.O.H.$. Cert. ~102 J. J. Eglin Analymt 090/£I,0'~1 98[-.L 010Z~£9199+ 0~9 gOll¥~B 3d00~t15~0~.1 IqdgO:;O ~'OOZ-SZ-)IWt LABO RATO RI .F_S, INC. 4~00 PI~C~ RD,. ~RS~IELO. CALIFORNIA 53308 PHON~ Mco~ ~d Ta~r Da~ of 5620 Distri~ Blvd ~103 ~e~;,z%; 27-~t-89 B~ersfleld, CA 9,3313 A%'~nti~: ~rey W~l~h ~b No.: 8304-2 · 3/3 10/20/89 ~ 9:00 ~589~129 'DATE SAMPLE DATE SAI~E DATE ANALYSIS COLLECTED: RECEIVED ~_ LAB: CXIMPL~; 20-0ct-89 23-0~.%-89 26-1.~t-89 Minimum Reporting Analysis Reporting Cons%i~en% Units Results Level ~:~zene u~Yg none detected 0.02 Toluene us/g none detected O. 02 E~thyl Benzene ug/g rAone detected O. 02 p.-Xylene ,~/g none detected O. 02 m-Xylene ug/g none detec%ed 0.02 o-X~lene ug/g none detected 0.02 Tc,tal Petroleum Kydrocarbor~ u~/g 39_. ? 1 5.00 TEST .METHOD: TFH ~or g~ollne by D.O,H.$. L.U.F,T. ~t?~d. In~ti~iduat cor,-~tituents ?;~ EPA method 8020. Dm7 Matter Basis Comments: C~r~mtog~a~ d~es nr;t exYuibit gasoline fingerprint. C~lifornia D.O.H.S. Cert. ~102 ~ 6ZZ-J O~O/PtO'~ ~Sl-I 010ZS~9199+ 3~0 SaOllV~a ~dOOBIS.-~OBJ flaBO:~O ~OOZ-8~-a~ LABOR.A TORIES, INC. 4100 PIERCE RD.. BAKERSFIELD, CALIFORNIA 93308 PHONE 32%491~ ~k~l~ ~d Taker D~ of ~.S20 Dis%rict Blvd ~103 5'eT~z%: 27-~%-89 'E~ersfield, CA 93~1~ At~ntion: ~y Walsh lab No,: 8504-2 ~r~le ~sc: ~rc%al ~ildi~ - 18th & ~ion 3/3 10/20/89 ~ 9:'00 ~589-129 DATE ~LE DATE S~LE DATE S~LE DATE A~YSIS ~LL~: ~IV~ Rep~ir~ ~alysis C~%l~en~ O~i%~ Resul~ ~vel ~nzene ~/~ none de~ O. 02 Toluene ~/g none de~ 0.0~ g%~l ~nzene ~/~ none de~ O. 02 t,-Xyl~ ~g none d~~ O. O~ m-Xylene ~/g none de~d O. ,:.-~lene ~/g none de~ O. 02 To~l Pet. ~y~~ns ~/g 140, O0 10. O0 T~T ~OB: ~ for ~A Meth~ 8020, ~ ~eiv~ ?OTAL PETROLEUM HYDROCAI~ttON$: Quantifioation of hydrocarbons utilizing a diesel st~,d-~rd ~5 outlined by the Cali{ornia D.O.H.S. T~ petroleum, hydroc_ar~,r~s are in addition I to t~ con.~ti~enta s~ci£icall¥ d~-fined. J. ,3. Eglin .~m RATO LABO RIES, INC. J. J. EOt. IN. REO CH6~4, 41QO PIERC~ nD.. BAKEflSFIELO. CALIFORNIA 93308 PHONE 3~7-4911 .~,re ~d -T~r Spike iD: 8283-1 5620 Dimtric% Blvd ~103 ~alysls ~: ~ermfield, CA 93313 ~le Matrix: ~il &%~n%ion: C~M Wal~h Uni~: ~/~ for ~b Nos: 8304-1, 8304-2 ~e s~le in twenty is sel~ as a ~presen~%ive [~trix w~ch is s~ik~. ~ ~e~en~e ~e~ (~ R~) of the spi~ is a ~lative the of the ~alysi$. ~e co~rison of %h9 spik~ ~e ulth a dupllca~ spike is a n~as%~ of ~ ~la%ive p~ksion of the ~alysis. in Sp~e Ad~ ~ Sp~ Spi~ ~mti~t ~le Spike % ~ % R~ ~ene 0.00 5.02 89.61 85.03 5.25 Toluene 0.00 5.16 94.88 84.77 11.26 Etf~l ~ene 0.00 5,01 92.98 87. S8 5.98 p-~lene 0. O0 5.08 93.83 89.13 ~l~ne O- 00 5.0[ 96.85 91. 61 5. o-~lene 0.00 f,. 00 94.44 84.02 1 ~ Gas 0.00 301.06 87.17 88.78 lbS1 Spi~ ~,le ~nc~ntrati0n - ~le C~,~ntrati~ % ~ecove~ = X [ (>~n~ntration of Spi~ ) ~ (Relative Pe~nt Diffe~n~) = Spied ~r~le ~nc. - ~pik~ ~plicat~ ~r~].e .............................................................. ( Cone. of Spikes) Average 8~-~ O~O/gtO'~ 98[-1 0[0Z~9199+ ~9 S~011V~ ~dOO~lS~O~ ~dSO:tO ~OOZ-SZ-~ LAE) O RA-I-O RI ES, INO. PETROL~.U,ff d.J. EGLIN. REG. CHEM. E~GR. 4100 PIERCE RD., BAKERSFIELO. CALIFORNIA 93308 PHONE327.491~ " ~X ~PH DIESEL H~'~ ~d Ta~r ~ Spike ID: 8283-1 5S20 District Blvd ~103 ~'H Sp~e ID: 8282-1 ~ersfield, CA 93313 ~lysis ~: 24-~-89 ~lity ~n%~l for ~b [~e sa~ple in twenty is selected as are. presentative matrix which is spiked. The ~e~ent~e z~.-covery (% Rec) of the spike is a r~latiYe rt~.a~uz-e of tf~ a~_c%tracs, of tf~. a~alysis. The corm~arison of the spike with a duplicate, spike is a ,~asure of the relative precision of the ~mlysis. in ~ike Add~ ~ ~p~e ~pike ~t~ent ~le Spike % R~ ~f R~ ~D Benzene 0.00 5.02 89,61 85.03 5.25 Toluene 0.00 5.16 94.88 84.77 11.26 Ethyl Benzene 0.00 5.01 92.98 87.58 5.98 p-Xylene 0.00 5.06 93.83 89.13 5,14 m-Xylene 0.00 5.01 96.85 91.61 5.58 o-X~lene 0.00 5.00 94.44 94.44 0.00 T~ Diesel 0.00 100.01 99.05 92.67 6.66 Spiked S-~le Concentration - Sample C~ncentration Recovery = X l r)0 ( C~ncentrati¢,r, c,f S~,ike) R~ (Relative Pe~nent'Difference) = Spiked .qa~.,le C~9nc. - Spiked ~pJicate. Fww'mple Cc, nc, ...................................................... X (Average Concentration, of Spikes) '1 T~T ~.~".~ 2.5" AC/4" AB fll i~:, Fi~iD'['igh(- brown fine ~ coarse SILTY "~'~ 'SM cobbles B 2.5 1 S~.,,.:< 11 ~.4 2 :~ Natural' Gray f~ne to medium SAND with 141.4 3 ~ ~;..~ SP some grave, TYPE ~" tlollnwT.st,_e._[n a.u_ce_r__ EL£VATION ,,,E,x!sttn~ p~,,d .......... LBORIN~- 2, ,. o _~;.. 2.s" Ac/4.5" AB Fill' Brown fine to coarse SILTY SAND ,.-I 0 20 1.4 1 - ~,,z SH ...metal fragments 0 9 !1,~ 2 S 0 12 1,4 3 -,.'.h, Natural: 6ray fine SAND " ~ ~ ~ ~ ~: "' -J LOGGED BY CNW ~TE 10-20-89 8~-J O~O/~tO'~ 98l-~ 010Zg~9199+ 3~9 S~O~qV3~ ~O0~lS~O~J ~d60:tO ~OOZ-6Z-~ T IORI N~ ~, Fiji: Brown fine to coarse SILT~SAND ~.,~ w~th cobbies c, SM il.4 2A "~' ,'~; ~ ?h.'. TEST BOR 1,4 1 ~[~ Fi1[: BroWn fine to coarse SILT'~ SAND - ~.~ ~ Naturai: Gray fine SAND I0 - 15 - ~0. - T~ BOS~G LO~ ~MMARIE~ AP~LY O~LY &T TH~TIM~ ~ ~ ~ ' ? LOGOED B~ CMW ~TE 10-20-89 ! 811-..I O~O/090',d 98[-1 OIOZSEg199,1. ;:]~9 $~tO.l. qV'q~l ]dOO~l.L$~O~t:l IAIdSO:l~O kOOZ-87.-~IVIAI GARY J. WICKS 2700 M Slreet, Suite 300 . Agency Director Bakersfield, CA 93301 (805) 861-3502 ...... ....... Telephone (805) 861-3636 Telecopler (805) 861-3429 STEVE McCALLEY ,'.'," ' ' '*" o,,~,o, R ESOU RCE ENT AG ENCY D EPART~~MENTAL November 17, 1989 Mr. Philip C. Holland Box 8039 Rowland Heights, California 91748 SUBJECT: Site Assessment Report, lSth and Union Avenue, Bakersfield, California Dear Mr. Holland: This letter confirms the completion of site investigation at the above site. With the provision that the information provided to this.agency was accurate and representative of existing conditions, it is the position of this office that no further action is required at this time. Please be advised that this letter does not relieve you of any liability under the California Health and Safety Code or Water Code for past, present, or future operations at the site. Nor does it relieve you of the responsibility to clean up existing, additional, or previously unidentified conditions at the site which cause or threaten to cause pollution or nuisance or otherwise pose a threat to water quality or public health. Additionally, be advised that changes in the present or proposed use of the site may require further site characterization and mitigation activity. It is the property owner's responsibility to notify this agency of any changes in report content, future contamination findings, or site usage. If you have any questions regarding this matter, please contact Dolores Gough at (805) 861-3636. Si/~e el~ ~urger, R.E.H.S. Program Manager Environmental Health Services Department CB:cas \holland.itt Philip C. Holland Box 8039 Rowland Heights, CA 91748 (213) 691-1839 November 15, 1989 Ms. Dolores Gough ENVIRONMENTAL HEALTH DEPARTMENT County of Kern 2700 "M" Street, Suite 300 Bakersfield, California 93301 Re: Soil Assessment Report Union Avenue & 18th Street (Southwest corner) Dear Ms. Gough, Per our telephone conversation of today I am enclosing the results of the tests made on November 14th at 15, 20, and 25 feet and which show no detectable gasoline or diesel residue at these levels. I would appredciate it very much If I could pick up your "closure" letter on Friday. I'll give you a call before coming in. My wife and I thank you for your help in this matter. M O O R I~' ~ T~, B E~ R GEO?gCHNICAL ENGINEERS AND GEOLOGISTS 6620 DISTRICT BOULEVARD, SUITE 103 , BAKER$1=IELO. CALIFORNIA {~3313 (805)833.1743 · FAX:(805) 833.2?05 November' 15, 1989 Job No. 589-1 29 Mr. Phil Holland Green Isle Development Company P.o. Box 8039 Rowland Heights, CA 91748' Dear Mr. Holland, Attached are the results of the additional requested testing for BTX and TPH of the Union Avenue and 18th Street site. one boring (B-5) was drilled adjacent to the previously performed B- 3. Samples were obtained, using procedures noted in our report of October 31, 1989, at depths of 15, 20 and 25 feet. The'boring log, showing the profile encountered and sample locations, is attached. Laboratory tests showed no detectable BTX or TP[! for e[ther gasoline or diesel residue in any of the three samples. If there should be any questions, or if we can be of further ass[stance, please contact this office.. MOORE & TABER David L..Pearson Principal Engineer Registered Geotechnical Engineer 674 (expires December 31, 1989) Enc: Test Boring Log Laboratory Test Results Chain of Custody T[Sl BORI NO LO .,~ Fill: Bm~ fine to coarse SILTY SAND "~ SM ~,~~ with fine sandy silt lenses loo 9 1.4 I ,a, ...fine sandy silt lenses = ~ ~ ~ THIS 80RIN~ LOG $UHMARYAPPLIE$ ONLY AT THETI~E N 0 ~'- I 5--89 WElD I LABORATORIES, INC. J. J. E~]N, ~E~. CHEM p~TROLEU~ 4100 PIERCE RD., BAKERSFIELO, CALIFORNIA 93308 PHONE 327.4911 (,SOIL) 5620 ~s%ri~ B%v~ ~, ~OS Be~<,~ ~5-N~-89 ~rs~ield, CA 933~3 iZ~nti~: ~y Wa%~h ~le ~c: Job ~=ing 5 ~le I Z1/14/89 · 0950 DATE 8AMBLB DATE SAMPLE DATE SAMPLE DATE ANALYSIS COLLECTED: BECB!VED ~ tAB: F.~RACTED: COMPLETED: ~4-N~v-8~ %4-N~v-$9 14-N~;v-$9 ~4-Nov-89 ~{eportir~ Analysis R~ing ~%i~ Uni~ Resul~ ~el ~e ~/'g none de~o~ O. 02 Toluene ~/g none de~d O. 02 E~i ~ene ~g none'de~ O. 02 p-~lene ~/g none ~~ O. 02 ~l~e ~/g nsnm ~~ O. 02 o-~%~ne ~/g none 8e~ O, 02 To~l Be~, ~~~n~ ~g nonm de~ 10. O0 TEST METHOD: Tr4{ for Diesel by D,O.E.S, ~.U.F.T Manual Me%hc~l (Carbon Disulfide Extraction). Individual co~ti~:ent~ by ~A Me~ 8020. ~ ~iv~ ~i~ TOTAL PETROLEUM HYDROCARBONS: ~ntifi~'~tion ol petroleum, ~ t~ ~%i%uen~ s~ifically ~fined. WED I 2 ~' I 2 r~l o o r- e :~, T ~l b e r- T:~k -~ d P . 0 5 LABORATORIES, INC. 4100 PIERCE RD., BAKERSFIELD, CALIFORNIA 93308 PHONE (SOIL) Moore and Taber Da%e of 5620 Di~%~-ic% Blvd S~. [03 ~,z~; 15-Nov-89 At~tion: ~y Walsh ~,~le ~: Jo~ ~589-129 ~ri~ 5 ~le 3 11/14/89 ~ ~005 COLLECTED: RECEIVED e LAB: EXTrACTeD: COMPLETED: [4-Nov-89 [4-Nov-89 t4-Nov-~9 [4-Nov-89 Reportin~ Anal?sis ~eportin~ Constituent Units Results Level ~enzene ~/~ none detected O, 02 Toluene ug/g none ~e~d O. 02 Ethyl B~nzene u~g none de%ected O. 02 p-Y~vlene ug/g none detected O. 02 m-Xylene u~/g none detected O, 02 o-Xylene ug/~ none detected O. 02 To%al Pet. · i-~drocar~'xms ,~/g no~ de.ted ~.0,00 TEST METHOD; TPH for Diesel by D.O.H,~. L.I].F.T Marl,.ugl Meth¢~l (C._~.bon Disulfide ~%raetion). Individ,~]. c~,ns%i~en~s ~ ~A Meth~ 8020, TOTAL PETROLEUM HYDROCAP~)N$: ~k~ntifi¢:ati¢~ .f petrole,m, hydr~carborm utilizir~' a diezel stan~l~rd as outlined by California D.O.H.S. Tbs ~e. trole~ ~;dr~ocarb°ms are i~ %o t~he. constl~ent~ spe~oi~icall¥ ~fined, California D,O.H.S. f'.~r%, LABORATORIES, INC. 4100 PIERCE RD., 8AKERSFIELO, CALIFORNIA 93301} PHON~ 32%4911 Be~31e,~ 5620 O.i. Zt'.FiC% Blvd S~. 103 ~e~,~'. 15-N~-89 ~ersfield, CA 93313 [~h No.: 9017-3 ~m[e ~sc: JoB ~ri~ 5 ~le 3 11/14/89 ~ [020 DATE SAMPLE DAT~ SAMP~ DATE SAMPLE DATE ANALYSIS COLLECTED: RECEIVED @ [AB: ~BA~: ~L~: 14-~-89 14-N~v-89 14-~v-89 14-Nov-89 ~n~i ~en~ Un $ ~ Resul~ ~vel ~nzene ~ n~e de~ Toluene ~g none de~ O. 02 E~I ~nzene ~/~ ~e de~ O. 02 p-~lene ~/E none de~d 0.02 m-~lene ~ none ~e~ 0.02 o-~lene ~g none de~ O. 02 To~l Pet. ~c~n~ ,~/g none de~ [0, O0 TEST METHOD: TF~ for Diesel by O.O.~{.S.L.U.F.T Man,~l Method (Carbon Disul~ide ~tra~ti~n). Ir~ividua[ cc,rl~t.[t,l~nt.~ ~ ~A Zet~ 8020. As R~:eiv~ LABORATORIES, INC. ,l, J [GUN. ~EO CHF~ ~NGR. 4100 PIERCE RD., BAKERGFIELO, CALIFORNIA 9330~ PHONE 327-49~] BTX/IPH DIESEL ~ ~d Ta~r ~ ~pt~ ID: 8867-1 5620 Dist~ie% 8lvd $~. 103 ~ Spi~ ~D~ 8847-I At~%iorl: ~rey Wal~h Uni~: ~/8 ~lity ~ntrol for ~b No~: 90~7-~, 90~7-2, 9017-3 Benzene 0.00 5,02 89,96 92.11 2 36 Toluene 0.00 5.16 92.40 94.28 2 O1 ~th~l ~nzene 0.00 5,0i 95.24 96,48 1 29 p-~vlene 0.00' 5,06 94.64 95.32 0 72 r.-Xvlene 0,00 5.01 98,90 99.93 1 04 o-Y. vlene 0.00 5.00 96.85 97.96 2 14 TP~ Diesel 0,00 200,0~ 2[2.67 107,72 4.49 Spiked Sample Concentration - .~1~ ~ncentration % Recovery = ........... X ll)O (Conoentratior, o~ Spike) RPD (Relative Perc. en% Differenoe) : Spiked Samp]e C~nc, - Spike~ 5~pji,cat~ F~a~le O>ne. LABORATORIES. INC. 4100 PIERCE RD., ~AKERSFIELD, CALIFORNIA 9330~ PHONE 327.4911 (SOIL) ~b No.' 8017-~ DAT~ SAMPL~ DATE SAMPLE DATE ANALYSIS COLLECTS: R~CEIVKD ~ ~AB: COMPLETED: 14-Nov-89 14-N~v-89 14-Nov-S9' M~ntm~ Repor~in~ Analysis Reportin~ Cons~ituen~ Uni%s l%esult~ ~z~vel ~ene ~/g none ~~ O. 02 Tolue~ ~g none d~~ O. 02 ~1 ~ne ~/g none de~ O, 02 p-~le~ ~g none de~ 0.02 ~lene ~g none ~~ O. 02 o-~lene ~/g none de~ O, To~ Pet~le~ ~d~~ ~g none ~~ 8. O0 ~ST ~OD: ~ for gasoline ~ D.O.H.S. L,U,F,T. r~r~. lndivid~l co~ti~:uen%s ~ ~A ~t~ 8020. Ca]i£ornia D.O.H.$. C, ert~. #102 LABORATORIES, lNG. Plr~OL~IJM d J' EGL,~, ~IIIG C.OM 4100 ~IERCE RD,. BAKERSFIELD. CALIFORNIA ¢3308 PHONE ~%~rgeaBle ~.~ ar~i Taber 5820 DL~trict ~ivd ~, 103 ~: 15-~;v-89 ~rsfield, CA 93313 At~ntlon; ~rey Walsh ~b No.; 90Z7-2 ~,~le ~se: Job ~589-Z29 ~ 6 S~le ~ 11/14/89 DATE S~E DATE S~ DATE ~YSIS ~tL~: ~C~i~ ~ ~: ~~: l 4-N~-89 14-Nov-89 14-Nov- 89 ~e ~ none ~~ O, 02 T¢luene , ~ none de~ O, 02 Et~l ~nzene ~/~ none de~ 0. p-~ene ~g none de~ O. 02 m-~lene ~f none o-~lene ~ none To~l Pe~le~ ~~~t~ ~ none de~ 5. O0 Individ~ ~sti~en~ ~ ~a ~%hc~ 8020. k~ 9~eiv~ NOV-- I 5--89 WED i 2 : i 5 Moor e & T c~b er- Bk f:d P . I 0 P. LABORATORIES, INC. ;~r;o~.;~a 4tO0 PIERCe RO,, BAKERSFIELD, CALIFORNIA 93308 ~HONF 327.4911 (,~)~) Moore and Ta~= ~ o~ f~20 Oim~te~ Blvd S~. tO3 Be?~ 15-Nov-89 At~tien: ~y. Wa!~h ~b No,: ~[ele ~mc: Job ~589-~29 DATE SAMPI.,E DAT~ S~'~LE DATE ANALYSIS COr.,L~'CTED: R,%'CEIV~ ~ r. AB: t4-Nov-89 14-.Nov-89 14-Nov-89 ~nzene ~/g none de~ 0.02 Tolu~e ~/~ noae de~ 0.02 E~I ~e ~ none de~ O, 02 ~_~ ~/; none m-~l~e ~8 none de~ O. 02 o-X~X~e ~/g none de~ 0.02 To~ Be~le~ ~~ ~ none TEST ~OD: ~ ~or ~oline ~ D.O.H.S t.U,B,T. California D.O.H.$, C,~rt,. ~102 LABORATORIES, INC. 4100 PIERCE RD., BAKERSFIELD, CALIFORNIA 9330a PHONE 321.4911 I)TX/~ 5620 Dis~'~ Blvd 8~, 103 ~l~sis ~t~: 14-N~-89 ~e~s~ield, ~ 93313 S~rele Matrix: At~ntion: ~ Welsh ~it~: ,~ ~or ~b ~a= 9017-1, 90[?-~ One sample in twenty lm selected am a ~epreseniative r~trix which i~ spi~. ~ ~en~e ~e~ (% ~) o~ t~ sp~e ima ~lative .~u~ of t~ ~ra~ of %~ ~ysi~. ~ ~rison of t~ C~nc. ~e 0.00 5.02 89,98 92. t t 2.38 Tol~ne O, O0 5.18 92.40 94.28 2. O1 Et~I ~ene · O, O0 5, O1 95.24 96.48 [. 29 p-~vl~e 0.00 6.06 94.84 95.32 0.72 m-~ le~ 0,O0 5,01 98.90 99.93 1,04 o-~ene 0,00 5,00 98.85 9?, 96 [. ~4 T~ ~e 0,00 30~. 06 88.46 83.99 2.90 QC Co;rrr~.n'~: milazzo & associates architects aia November 3,1989 Mr. Chris Berger ENVIRONMENTAL HEALTH DEPARTMENT County of Kern 2700 "M" Street Bakersfield, California 93301 Dear Mr. Berger, Enclosed herewith is a report prepared by Moore & Taber, Geotechnical Engineers and BC Laboratories, Inc., for Green Isle Development Company dated October 31, 1989. It is our desire to have your depattii~ent review the data contained in this report and determine if there exists any action on the part of the property owner relative to the presence of hydrocarbon substances. As the proposed project is developed there is a need to have your written response to these existing conditions. If I can provide any additional information or assistance please contact me. Your earliest response is anticipated since the close of escrow is scheduled November 12, 1989. Sincerely, M1LAzT. O & ASSOCIATES ARCHITECTS AIA DYM:clb Action Requested cc: Phil C. Holland Enclosure 3300 truxtun avenue, suite 300 * bakersfield, california 93301 · (805) 323-3800 .~ M O O R E ~,, TA Et E R GEOTECHNICAL ENGINEERS AND GEOLOGISTS ~~%L? 5620 DISTRICT BOULEVARD. SUITE 103 · BAKERSFIELD. CALIFORNIA 93313 ~'~ ~"~/" ' ' (805) 833-1743 · FAX: (805) 833-2705 ~,c~. Ocbob~ ~1, 1~8~ Mr. Phil Holland Green Isle Development Company P.O. Box 8039 Rowland Heights, CA 91748 Limited Site Assessment Green Isle Development Company Union Avenue & 18th Street (Southwest corner) Bakersfield~ California Introduction This report presents the results of a limited site assessment study for the proposed Green Isle Development Company Commercial Building. The site is located on the southwest corner of Union Avenue and 18th Street in Bakersfield, California. The parcel is presently vacant and is partially covered with A.C. pavement. The approximate dimensions of the parcel are 120 feet by 140 feet. Based on information obtained from Milazzo & Associates, previous land use included a gasoline service station located on the eastern portion of the parcel. Reportedly, the service station closed and removed fuel storage tanks in the late 1950's or early 1960's. Purpose The scope of work for this study included air photo review, site reconnaissance, soil sampling, laboratory analysis, and an attempt to define both the lateral and vertical extent of petroleum-permeated soils. Laboratory analysis included performance of the following tests: ... Gasoline Residue: BTX and Total Petroleum Hydrocarbons. ... Diesel Residue: BTX and Total Petroleum Hydrocarbons. Mr. Phil HOlland Page Two Green Isle Development Company Subsurface Exploration The study consisted of four shallow 8-inch diameter hollow- stem auger borings. The test borings ranged in depth from about five (5) to ten (10) feet. A Trace Gas Analyzer (HNU Systems Model PI101) was utilized during drilling and sampling to assist in evaluation of likely contamination. In-place samples were collected by means of a 1.4-inch I.D. standard penetration sampler. Prior to sampling, the sampler was washed with trisodium phosphate solution and rinsed with distilled water. Soil samples were extruded into glass Jars, which were sealed with aluminum foil and screw-top lids. The collected samples were stored in an ice chest and taken to a certified laboratory for testing and storage. Details pertaining to the exploration operations, Trace Gas Analyzer results and locations of the test borings are presented on the Test Boring Logs and Location of Field Tests drawing. The test~ locations are based on visual alignment and taped measurements from identifiable physical features, and should be considered approximate. Aerial Photoqraph Review Aerial photographic data covering the project area was flown on August 3, 1956. In the photograph, a structure appears centrally located in the eastern half of the subject property, and is presumed to be the previously referenced gasoline service station. Groundwater Conditions No ground water (perched or static) was encountered in any of the explorations. The 1988 Water Supply Report (May, 1989) by the Kern County Water Agency indicates that the groundwater level is probably in excess of 150 feet deep. Findings Laboratory analysis, as well as field observation and testing, indicates significant gasoline and diesel fuel residue, exists within test boring No. 3. The residue appears to diminish downward vertically as well as horizontally toward boring No. 4. None of the samples analyzed contained detectable levels of benzene, and although Total Petroleum Hydrocarbons for gasoline residue were reported for sample 3/3 (ten foot depth), the chromatogram reportedly did not exhibit a gasoline fingerprint. Analysis on this same sample did not detect any benzene, toluene Mr. Phil Holland Page Three Green Isle Development Company or xylene. This, and the lack of benzene in the upper sample, would indicate the fuel product is not of recent origin, and is likely associated with the prior gasoline service station pump island or underground fuel storage tanks. Limitations This report is based on the information obtained from the test explorations performed at the approximate locations indicated on the plan. Our findings are based on the results of the field, laboratory and office investigations combined with an interpolation and extrapolation of soil conditions between and beyond the test excavations. The results reflect our interpretation of the limited direct evidence obtained. This report has been prepared in accordance with generally accepted geotechnical practice. We make no other warranties, either express or implied. MOOR . & TABER Corey M. Walsh Staff Engineering Geologist NO. 874 David L. Pearson Principal Engineer Registered Geotechnical Engineer 674 (expires December 31, 1989) CMW/DLP/tr Enc: Lab Results Test Boring Logs Location of Field Tests Distribution: (2) Green Isle Development Company Attn: Mr. Phil Holland (2) Milazzo & Associates Attn: Mr. David Milazzo J. J. EGLIN. REG. CHEM. ENGR. PETROLEUM 4100 PIERCE RD., BAKERSFIELD, CALIFORNIA 93308 PHONE327-4911 ~.~-geable Ar¢,m~t. ica ( SO I L ) Moore and Taber Date of 5620 District Blvd ~103 Re~: 27-~t-89 ~ersfield, CA 93313 At~ntion: C~y Walsh ~-~ [ ~b No.' 8304-1 ~sc: C~r~ial ~ildi~ - 18th & Union ~Z ~le 3/1 10/20/89 ~ 8:40 ~589-129 DATE SAMPLE DATE SAMPLE DATE ANALYSIS COLLECTED: RECEIVED @ LAB: COMPLETED: ' 20-0ct-89 23-0ct-89 26-0ct-89 Minirmun Reporting Analysis Reporti~tg ConstiTJ~ent Units Resul ts Level Benzene ug/g none detected O. 02 Toluene ug/g O. 05 0.02 Ethyl Benzene t~/g 0.19 0.02 k 0.27 0.02 p-Xylene ug/g m-Xylene ug/g O. 18 O. 02 o-Xylene - ug/g 1.70 O. 02 Total Petroleum Hydrocarbons ug/g <' 60.55 ~O ! 5. O0 : ,') ?' "~ TEST METHOD: TPH for gasoline by D.O.H.S.L.U.F.T. r~thod. Individual constituents by EPA ~th~ 8020. Dry Matter ~k~sis C~xar~nts: California D.O.H.S. Cert. ~102 By. I. I. Eglin A~alyst £,qVIR~t~M, ENT,~L LABORATORIES, INC. J. J. EGLINo REG. CHEM. ENGR. PETROLEUM 4100 PIERCE RD,. BAKERSFIELD, CALIFORNIA 93308 PHONE 327-4911 (SOIL) Hoore ~d Ta~r Da~ 5620 District Blvd ~103 Re~: ~7-(~t-,~ ~rsfield, CA 93313 At~ntion: ~rey Walsh ~b No.' 8304-1 3/1 10/20/89 ~ 8:40 ~589-129 DATE SAMPLE DATE SAMPLE DATE SAMPLE DATE ANALYSIS COLLECTED: RECEIVED @ LAB: EXTRACTED: COMPLETED: 20-0ct-89 23-(~t-89 24-0ct-89 24-0ct-89 Reporting Analys is Reporting C~nstituent [Jnits Results Level ~enzene ug/g none detected O. 02 Toluene ug/g O. 05 O. 02 Ethyl Benzene ug/g O. 19 0.02 p-Xylene ug/g O. 27 0.02 m-Xylene ug/g O. 18 O. 02 o-Xy lene ug/g 1.70 O. 02 Total Pet. Hydrocarbons ug/g 201.00 10.00 TEST METHOD: TPH for Diesel by 'D.O.H.S.L.U.F.T Manual Methyl (Carbon Disulfid~ Extraction). Individ,~al constituents by EPA Meth~ 8020. As Received Basis TOTAL PETROLE~ HYDROCARBONS: Qu~tification of petrole~r~ kvdrocarbons utilizing a diesel st~ -dard as outlined by the California D.O.H.S. The petroleu~ ~drocarP~or~ are in addition to the consti~3~ents specifically defined. California D.O.H.S. Cert. ~102 J. J. Eglin Analyst EN FIRON,~.EI~ T,a L LABORATORIES, INC. J. J. EGLIN. REG. CHEM. ENGR. PETROLEUM 4100 PIERCE RD.. BAKERSFIELD. CALIFORNIA 93308 PHONE 327-4911 F~3 rgeab].e Aro~ti,:.z ( :~:~IL ) Moore and Taber Date of 5620 District Blvd ~103 ~eT~.,rt: 27-Oct-89 Bakersfield, CA 93313 Attention: Corey Walsh Lab No.: 8304-2" ~f~le Desc: C~r~r~rcial ~ildir~ - iSth 3/3 10/20/89 @ 9:00 ~589-129 DATE SAMPLE DATE SAMPLE DATE ANALYSIS COLLECTED: RECEIVED 8 LAB: C~MPLETED: -20-0ct-89 23-0~t-89 26-(~t-89 Minim~a Reporting Analys is Reporting ConstiO~ent Units Results Level Benzene ug/g none detected 0.02 Toluene ug/g none detected 0.02 Ethyl Benzene ug/g none detected 0.02 p-Xylene ,lg/g none detected 0.02 ug/g none detected 0.02 m-Xylene o-Xylene ug/g none detracted 0.02 Total Petroleum Hyclrocarbons ug/g 32.71 5.00 TEST METHOD: TPH for gasoline by D.O.H.S.L.U.F.T. ~et?~d. Individual cor~%ituents kW EPA method 8020. Dry Matter -Basis Co~r~ents: f~c,~mtog~ram does not ex?Jbit gasoline fir~erprint. CaliforrLia D.O.H.S. Cert. ~I02 ENL'IFONMEN T~ L LABORATORIES, INC. J. J. EGLIN. REG. CHEM. ENGR. PETROLEUM 4100 PIERCE RD.. BAKERSFIELD, CALIFORNIA 93308 PHONE 327-4911 Pel-,role,m~ Hydr¢,ca rb-_,ns Moore ~d Ta~r Da~ of 5620 District Blvd ~103 Re~o~<: 27-~t-89 ~ersfield, CA 93313 At~ntion: ~y Walsh ~b No.' 8304-2 ~ple ~sc: ~,:~rcial ~ildir~ - 18th 3/3 10/20/89 ~ 9:00 ~589-129 DATE SAMPLE DATE SAMPLE DATE SAMPLE DATE ANALYSIS COLLECTED: RECEIVED @ LAB: EXTRACTSI~: CJ3MPLETED: -20-f~t-$9 23-(~k2t-89 24-(.~2t-$9 24-0ct-$9 Minbm~t~ Reporting Analysis Reporting C~ns t i tuent Un i ts Resu 1 ts Leve 1 Benzene ug/g none detected O. 02 Toluene ug/g none detected O. 02 Ethyl Benzene ug/g none detected 0.02 p-Xylene ug/g none detected O. 02 m-Xylene ug/g none detected O. 02 o-Xy!ene ug/g none detected O. 02 Total Pet. Hydrocarbons ug/g 140. O0 10. O0 TEST METHOD: TPH for Diesel by D.O.H.S.L.U.F.T M~ual Method (Carbon Disulfide Extraction). Individual c~nstituent~ by. EPA Method 8020. As Received Basis Co.n~en ts : TOTAL PETROLEUM HYDROCARBONS: Quantification of pet~.,le~t, hydrocarbons utilizing a diesel st~d-~_rd as outlined by the California D.O.H.S. The petrole,~ ?~drocarh~.,ns .are ir, addition to the constituents specifically defined. California D.O.H.S. C~rt. ~102 LABORATORIES, INC. J. J. EGLIN. REG. CHEM. ENGR. PETROLEU~ 4100 PIERCE RD., BAKERSFIELD. CALIFORNIA 93308 PHONE 327-4911 T.,~/TPH GASOL I,'~ QJality ~ntr¢,i Data Moore and Taber Spike ID: 8283-1 5620 District Blvd ~103 Analysis Date: 26-Oct-89 Bakersfield, CA 93313 Sample Matrix: ,Boil Attention: C~orey Walsh Units: ug/g Quality C~ntrol for Lab Nos: 8.304-1, 8304-2 One sample in twenty is selected as a representative matrix which is spiked. The percentage recovery (% Rec) of the spike is a relative measure of the accuracy of the ~nalysis. The comparison of the spike with a duplicate spike is a rrmasure of the relative precision of the analysis. Conc. Conc. ~:, in Spike Added to Spike Spike Spike Cor~tituent S~nple Spike % Rec % Rec RPD Benzene 0.00 5.02 89.61 85.03 5.25 Toluene 0.00 5.16 94.88 84.77 11.26 Et?v1 Bermene 0.00 5.01 92.98 87.58 5.98 p-Xylene 0.00 5.06 93.83 89.13 5.14 m-Xylene 0.00 5.01 96.85 91.61 5.56 o-Xylene 0.00 5.00 94.44 84.02 11.68 TPH Gas 0.00 301.06 87.17 88.76 1.81 Spiked Sample Conc. ntration - Sa~le C/~ncentration % ~ecovery = X 100 ( (Y~ncentration of Spike) !i RPD (Relative Percent Difference) = Spiked ~,ple Conc.- Spiked ~plicat~ Se~np].e ~,nc. ........................................................ (Average C~nc. of Spikes) E~,'ViROt;MEI','TAL LABORATORIES, INO. J. J. EGLIN. REG. CHEM. ENGR. PETROLEUM 4100 PIERCE RD.. BAKERSFIELD. CALIFORNIA 93308 PHONE 327-4911 " BTX/TPH DIESEL ~.~ality O%,ntrol Data M~_,re and Taber BTX Spike ID: 8283-1 5620 District Blvd ~103 TFH Spike ID: 8282-1 Bakersfield, CA 93313 Analysis Date: 24-Oc%-89 Attention; C~rey Walsh Units: ug/g Quality Control for Lab Nos: 8.304-1, 8304-2 ~e s~mple in twenty is selected as a representative matrix w?~ich is spiked. The percentage recovery (% t~ec) of the spike is a relative [~asure of the accttracy of t~ analysis. The cormparison of the spike with a duplicate spike is a ~asure of the relative precision of the ar~lysis. (k,nc. Conc. Dup in Spike Added ~ Spike Spike Spike Constituent S~mple Spike % Rec % Rec [:~D Benzene O. O0 5.02 89.61 85.03 5.25 Toluene ~ O. O0 5.16 94.88 84.77 11.26 Ethyl Benzene O. O0 5. OI 92.98 87.58 5.98 p-Xylene O. O0 5.06 93.83 89.13 5.14 m-Xylene O. O0 5. O1 96.85 91.61 5.56 o-Xylene O. O0 5. O0 94.44 94.44 O. O0 TPH Diesel O. O0 100. O1 99.05 92.67 6. ~6 Spiked Sa~ple Concentration - &~r~le C~ncentration , l~ecovery = X 100 ~ (C~ncentrati,?n ,:,f Sp~e) ~ (Relative Pe~nt Diffe~n~) = Spik~ ~le r~nc. - Spik~ 5]p] ica~ C~le ~,nc. (Averse ~n~ntration of Spikes ) M O O R le TAB F' R CONSUl. TING £NO'NI:4ANO TEST 10RIN TYPE 8" Hollow-stem auger ELEVATION Existtn,(t pad ,~' _ 2.5" AC/4" AB 0 \~ ~.~ Fi~D Light brown fine to coarse SILTY ' ~,~ Brown Fine to coarse SILTY SAND with som~ 0 8 2.5 1 5- ~ cobbies _~' 0 11 1.4 2 :iL~. Natural' G~ay Fine to medium SAND with ':L'..: some gravel - 2i;i sP 0 14 1.4 3 K}~- 15-- TEST BORING TYPE 8" tlollow-stem aucer ELEVATIOM Ex!.stin~ pad IBORII~I 2 0 _ ~..:? ~ 2~5" AC/4,5" AB i~2 Fill' Brown f~ne to coarse SII.TY SAND 0 20 1.4 1 -~ ~...'~ SM ,,.metal Fragments 0 9 1 4 2 5-- ,,. ,?~ Natural' Gray fine SAND ~ ~ ~ = ~ ~ ~ ~ AND LOC&TION INDIC&TED. SUISUNF&C[ CONDITIONS ~~ ~ ~ ' '~ ~ MAY OIFFEN .TOTHE. LOC.TIONS.ND TIMES. ' i -u a- I ' ~' ; LO~aEO BY CMW ~T 10-20-89 H 0 0 R Ir TA El F' R co~su~.'r, No TYPE 8" Hollow-stem au(er ELE~ATI~ Exist~nfl pad I~RING 3 _~.~ ~ 2.5" AC/4" AB 200 22 1.4 1 =~ Fill' Brown fine to coarse SILTY SAND 2';~ SM with cobbies 70 NSR 22 1.a 2 ~' ~:'~ :i?: Natural' Gray fine SAND '.To,SP 10 5 1.4 3 ~' -:~:.'~ T E ST BORING Type 6" Itollow-stem aurer ELEVATION Existin~ pad IBOI~ING 4 -2.:,~ 2.5" AC/4" AB 10 14 1,4 1 .(.,~ Fill' Brown fine to coarse SILTY SAND ~.:~ SM 5 8 1 4 2 $'- ';¢;; . .~ Natural' Gray fine SAND 20' ~ - ~ ~ ~ ~ ~ ~ ~ ~ ANO LOCATION INOICATED. SUSSUNF&C[ CONOITIONS ~ i - I - a - ~ LOGGED BY CMW ~TE 10-20-89