Laserfiche WebLink
.r=- r 3.4' .. _�^.' r f �� t� � �i>,g.a1\�ry- � � 'rra".P. i.1A Y` ""'i`....'rrc�.s�� - rt {€ rtl��•� HL+* ��, .- <br /> ��.n., <br /> VF F <br /> ...Y � .'fit.,_. rt �ir` �� ..w� � :.w^'�. .' ,�.ss ,a..�� � „e�5 _a. `� M,�: n; � �,.� �• ,'En r�"fy,. ����^'�1 <br /> ` GROUNDWAT ER <br /> TECHNOf OG`; INC. <br /> rw i 14011laly ani Dow.Suitll140.WVASa[rMMO.CA9.i69l.{916}3724700 <br /> FAX 010 37 2-8781 <br /> March 19, 1991 Project No.202/150-4150 <br /> Mr. R. R. Zielinski <br /> Texaco Envlronmeqtal Services <br /> 108 Cutting Boulevard <br /> Richmond,CA 9004 <br /> RE: QUARTERLY STATUS REPORT(R-2 of 91) <br /> TEXACO SERVICE NATION <br /> 440 WEST CHARTER WAY <br /> STOCKTON,CALIFORNIA <br /> Dear Ar.Zielinski: <br /> y This letter Is presented as a quarterly report on groundwater conditions at the site referenced above for the <br /> quarter ending February 1991. Groundwater monitoring and sampling were conducted to determine water <br /> table elevation,the thickness of any separate-phase petroleum Hydrocarbons (SP),and the distribution of <br /> dissolved hydrocarbons In the 11 monitoring wells (MWs)at this site. Groundwater monitoring data and <br /> results of laboratory analyses of groundwater samples collected on February 8, 1991,are Included. <br /> WORK PERFORMED <br /> GROUR47WATER MONITORING <br /> Whet table elevetfans�t.the.sile have decreased an Avarage'of 0.70 foot from levels reported the previous <br /> quarter. TiteesiEatt ted f3oysrt1H 71oh af1r131 I ter 19 divefgetitiram MW2 tott. r es and-fast <br /> Monitoring results are presented in Figure 1 and Table 1 (Attachment <br /> GROUNDWATER SAMPLING <br /> Prior to water-sample collection,the groundwater monitoring wells were purged of 4-10 well volumes and <br /> allowed to recharge with representative formation water. A U.S. Environmental Protection Agency (EPA) <br /> approved Teflon" sampler, cleaned with an Industrial detergent and distilled water, was used for the <br /> grounrrwater sampling. The water samples were then transferred to 40-milliliter glass vials with Teflon-tined <br /> caps, preserved on Ice, and transported to GTEL ErAronmental Laboratories, Inc. (GTEL), in Concord, <br /> "alifornla,accompanied by a chain-of-custody manifest. <br /> 0f8aes thn+uyhout rhe r..s..Canada and o r encas <br />