|
t � _ _ -C s •°y„ - „� k "~ i _ F.,-' 4'tea ^'• ''� r .�y.. -_
<br /> �- .f__ _ x ars -�I..7 n 3 5 T�.;.k,z!� , ^'�-', j�z -�,'` e.yz {s • 1,�?y ."x - -�
<br /> .-L .
<br /> E.,
<br /> , .'__-
<br /> e - -
<br /> -'.'� __
<br /> - -
<br /> .�_.
<br /> - �.
<br /> . -
<br /> - - -, -!��JtE�. �:,__-i ?..- --- ,� - _ . .A- -wa � ,C --, , -y' - .. . ` �Vc-
<br /> --, , - , -��- ,� .a on
<br /> -_',���_ r--- --
<br /> -..,
<br /> � Fij�,-_r__S,
<br /> 7 :
<br /> 1w. �,
<br /> I
<br /> - -"� .�
<br /> a.1 �-�- , - -t.�'
<br /> , i..--. c _ fir'_ F moi,- ch•: r, r--5--,, .... . W-c' '...5 r �-' . , - - � �LI�'tj_. . .
<br /> L .
<br /> 1�- - � -.
<br /> , . ,4*,:,� - 1i . -7,4_;�__"_;�L, Oz.. - 4,� ---��-,�r-,_.. -, �
<br /> � _.-
<br /> . -
<br /> I�K- L .-
<br /> r ; .
<br /> �,� y�- I �...
<br /> _ * Preliminary Inve_stigat_. on And Evaluatran-Repoit -� i r .;,'
<br /> F. - T
<br /> a -Y F* GORIO ACE TOMATO , _S P �,I Z 0 1 _
<br /> ,.{{ �- - -- . 5458 Section-.Road;Stock'#on,-C'ahfornya `__' FnAI�4/ f"1 j1 qA p ]� ,_ }� a r �
<br /> Y""x':Si J -rte- -.; r _i.� , ; �` r' 't_;•. ..-x R R- : !3 rt i ?i�Y v� �l'f��`I 11 ��'I_Y�L,. �3Y -
<br /> -i =-� ;,. sa- r ;� F ?rte' r ,u i 'T, -_'Y- ttiz�7_: rC 1_._,L+ i-pc .e
<br /> ZT
<br />€ 1:Q. INTRODUCTIO - - w -
<br /> N.
<br /> ,� - - -. .- r ' �-N:+�K irk -.; � .-f. E- °
<br /> .tL �k .At the•reque8t-of M1.r: Dean=Janssen,Advanced_GeoEnvlronmental, Inc (AGE) has p eparad thisr_ ,� =.
<br /> 6� � Preliminary Investigation and Evaluation Repart fot Lagono Ace Toniafo,located at:S458 Section
<br /> �' `'' Road Stockton=California site The location of the site is;illustrated on Fi r
<br /> _ - _ } - • v '- _ gure I A plan of ttie site = ��a=
<br /> :.# zs_illustrated on Figurd. � �- = , a T v : J
<br /> ^ '
<br /> �7,7
<br /> ,. =The Sant Joaquin County Public Health Services=Environmental Health Division(PHS EHD} has _
<br /> �, directed`by letter dated 0-9=June'1.999, subsurface assessment of petroleum hydrocarbon unpacts �1 �� � ='
<br /> _� _ _
<br /> —s — _ §c - _
<br /> -� related to forrzier.underground storage tanks (USTs).af the site.:A ssessiiient procedures for tfie site
<br /> Were'outlined&d-in.
<br /> Prefimznary Site,AssessmenkWork Plan,` dated''.27ruly 1999; approved_by theme
<br /> sN ' PHS-EHD by letter dated_09TSeptember:,1999;,and conformed to Central Valley Regional:mater '. 3
<br /> is- -
<br /> -.
<br />} Quality Control Board'-(CVRWQCB) guidelines-for the investigation of UST sites Y
<br /> �. , "The' purpose of-this investigation was to assess=the petroleum hydrocarbon unpact:6 soil ands _;
<br /> ;potentially ground wafer l;eneath rile forrrir T 3 4 _U -
<br /> US system f
<br /> �. z
<br /> `' t. - '-.g _ s _.�,'� 'F- - ,va Y _-max- of�. '"" -. "'_+•.- } '* r 1.J�'-�-• - - .i'•a --,. C
<br /> E• .«-MSS`•! _ is p - _. .1.-.! Tom! -v J 3 5 3- 'Ta2- #- 0 b M'T !..
<br /> .� k - ,. ,:srF^ -.,�� P,w '__ s �'S..- s , a-c �` `:,`T-
<br /> 11
<br /> i, _.' 'Z 0. BACKGRO 'T{�VTD � sr x, = , - Y _
<br /> .J.0 • V 1, 4/�y, -'' - b6^—? of r �. a,. ~]'
<br /> y .
<br /> -.ia - '� _ -., , __ s ig -!.-,5, i _w4 r v� _ i
<br /> "'mow-r�' -ry__ .- " . d.....-•:..� - - --1�: .[w -.. I
<br /> x
<br />,L, z The property is situated within the Great Valley Geomor is Province of California, _.large, r -,
<br /> elongate;,northwest-trending;asyrni�iciric.stri►ctural trough.-The Great Valley'P`roviii:,e has_beeri
<br /> s - - -
<br /> :_
<br /> ' `- -filled with thick sequences:of sediment ranging in.age froze JurasslG~to Recent, clreatmg a nearl}%flat I
<br /> r� � _r � lying alluvial plam;extending froze;the Tehachapi-Mountains iii the'-south to the Kla�riatli IVlountairis _ ,- 1111
<br /> f in the'nrth Th' J I._: - : ' . -, .... t'. t
<br /> { ; I - ° e-westem an -eastern.bbundanes of this province are coznprisedio f.th California._ rt
<br /> m �.
<br /> Y -�F - Cvast,Range'and he Sierra Nevada; respectiyvely Rocks coriiposing the.basement--complex:of t1.he . 6
<br /> A; ' _--province have not been completely:defined but a&..b ieved to be ii etaniorphlc and;Igneous iii origin =�
<br /> - The northern and'southerri portions oPthe"Great Va11ey�:Province'have been designated the 4 r -
<br /> '� - - - _ _l 3 l S - I. G F,.:
<br /> Sacramento and Sari Joaquin Valleys, respecfvely. ry4 h k�� '�" ; `�
<br /> ' - _
<br /> %
<br /> 1, 'The estimated.depth to-graun_d water at the site 1s between 66 and 10 feet below surface grade_(bsg)
<br /> E �..
<br /> ,il
<br /> , _ -_. —3 '
<br /> based ori.information:from Lines of Equal Elevation 6f Groundwater _Lanes;of Equal Depth toxW 2
<br /> ..'Groundwater Fall 1997, pjiblished-by the-.San-Joaquin'Cbghi y.Flood Control (SJCFC),and`a-ter, ` --'
<br /> � Caziselvatiori District:.Based on review of a regional ground water elevatgp mapaL.lso published by - s
<br /> s .J" 'SJCFC, the:prevailing`ground water flaw dixection_ne:4 the site-is generally`,toward' the south 4�'
<br /> R southeast,-'although°flow directions may be,both locall acid.seasonabl influenced b:%. Chari n i.
<br /> J -Y Y Y " g f
<br /> 1. r = recharge anddlseharge conditions 4 `� • � j F f� �� y }F"
<br /> M
<br /> 3- _'F _ # , ---.F.. ^� .+ �" -+• .mac57 a 'c"-` . , sem- a�.t' g 2 _ �_•T ,:, ar -
<br /> --w�. - F .t-...4 - s. . f- �: ,-Y - p k - - -2 % - Y'� .1
<br /> -
<br /> 0
<br /> '_ = w��. . E ?x� - __ j2f advanced GeoEnvironmentai,Ioc
<br /> -L-'-—- �`- ` , . L4_ . . ` ,E "
<br /> T .�� T -- r L �3J t- T "YSsr- -1 I( . -:-^�.+ ay 'Y"•s-e -� a,.
<br /> 1.
<br /> _'.- - _ tic r.'�"xy.._;'t` _ �' i T-,` T ''' t' � v."h
<br />
|