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<br /> r�. - —�` � .", -. - - � i - .� j �•` _ is es �,,.� ,x.. �. :.+ 9 ,*
<br /> Uf JohnDot i
<br /> Project 113-26402,December 16,1993
<br /> Page 2
<br /> A passive skimmer was installed in MW4;by Parker Environmental Services"on
<br /> February 11; 1993 to collect'floating product. The skimmer allows:gasoline to enter T '_
<br /> through a selective membrane that keeps water out: Ms.' Linda'Turkatte, a Health
<br /> Specialist from San Joaquin County, was present during the installation. No free
<br /> product was collected in.the skimmer during the monitoring period, and 'no Visible
<br /> sheen or free product was•apparent in`MW4 during this time. 'r
<br /> Groundwater'sam lin was performed b Parker Environmental in Febru 1993 -1f
<br /> P g P y ary,
<br /> -May, 1993, and August, 1993. Drums with purge and wash water from the first 2 .
<br /> quarters were removed on August.3, 1993. The liquid was taken to Gibson Pilot
<br /> _ Plant in Redwood City by Erickson,,Inc of R�chmarid, usuig a hazardous wante a
<br /> manifest. Drums were retained by Farer:EnvlrontnentalYass future groundwater h
<br /> e - 3Y *. ,,,,. �,� `• �''r�7j
<br /> urge.and wash-water eonWi ers for ttus;fat IiE r,� -;
<br /> f=, x .. .1 r r!. „e.,,wf.�. <F ,,�a'w2t-VCs '..a ""Yr' k. ,�^,• .f.'�' _ �s'9`y� r f.; �j.�truy ,h ,r,".�y ya ii'F3�.z.
<br /> ...� j a f.-� -. �J�'�"�K���,k p ��`"� � .d: ? ` �T�S"��R� p= k d�S�'.'^^'-»'��i ��} � � �r� ��� ���'�+''•P� r f+�"� ."�'a-: t ,
<br /> . _ - .1� .• • •es � �:a f � �,-te
<br /> ACtiv�ttih il• iy s i�'a .,`"WE3y rr - .+",r'._
<br /> d.. Rt _-:'�'x- x t'r -• f�' a i w € < u t_:• ?. ', C .Y t F ay r
<br /> tk
<br /> ' Groundwater:saznp es �+vere obfidhved<oni l Tone nbe r A, 1 ,The ski tmer vias '
<br /> is �, ,� • .>':S, �'��� •c t¢ -�. .ts;wr'r� '�s.� { ; s
<br /> y .. t r � � ,r� ft �•T.G.t`� � )' t' �y`•�" 4s�� �,.ar � ��"'r�,`� r
<br /> re�oved,from W-- .AhdI tsi ected °I o rc�diict was preseri#MAfte=c-onecuon
<br /> '�' y; •chamber of t]�� `"rimfi c
<br /> I- Pk
<br /> o sin _lin' ntiw'Rer�el vapor' asu "i
<br /> . :.:� .� h ; _ ,a;.•ci - b`. 'Q� 7.:: r s� si',- +r _ o'aad3 .r -`-' f�'i;,,iy 4, -• f ,.y_
<br /> were obtained using an'gectric'water level meter:.Resutts are presented in"the:table _ r
<br /> 'below.
<br /> Table 1 ;:Well Data ° .r ` �
<br /> . : Cheaper! Store #37.
<br /> 15 East Grant Line Road, Tracy, California
<br /> Noyeniber 3U, 1993 . t
<br /> Well # Well Top Elevation .: Depth to GW GW Elevation"
<br /> ' MW.4 100.20 .6.09 '94.11
<br /> MW-2. I W-20- .
<br /> MW-3 101.40 7.23 94.17
<br /> MW-4 99.20 5.12 - 94.08
<br /> * An arbitrary elevation of 100.0' was established on the site for the GW elevation
<br /> All elevations given in feet.
<br /> Groundwater is about eight inches higher than in August, 1993, and about four
<br /> inches higher than in May, 1993. The direction has changed to the northeast,
<br /> compared to the north in August, and to the'southeast in May:'No free product was
<br /> detected in MW4. A comparison of groundwater elevations for all four quarterly {
<br /> events is presented below.
<br /> 9
<br /> Parker Environmental Services, 190 East 7th Street, Pittsburg, CA 94565-2317
<br /> Phone {510} 439-1024 Fax (510) 439-2566
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