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L Y� T s g <br /> 7. <br /> fE- _ ��.�-_J +a is - i�- - +�' ...'•'��a�- '�' <br /> 16 May-2000 _ r,^ . - <br /> AG&NC Project No. 9-5-01-73 r a k - f <br /> _ a <br /> AE <br /> - ' PD <br /> age 2-of-6:_r - r-- e -_ 4. 3 ), r -_ F1' f .•- _ �'t--y ,y ' "_ <br /> Ad. Health Gu.idance. Manual fora Hazardous Waste Sdi Actrvtttes_(National xInstitute forF <br /> Occupatignal Safety -and Health_Administratroi�, U S Coast Guard and U S. Environmental <br /> w .. , <br /> - 'Protection Agency, 1-985)'-Prior to;mobilization,the proposed.groundwater ifibmtonng well location : h s ` <br /> - will be'clearly marked:and a utility clearance obtained through Underground Service Alert' . = <br /> 7 y _ <br /> , - b. <.w -.• _ sr _ - ?p .i, _ ,, r..-.- _mss • e -.a= <br /> _ FS 3 �_"—+ '.� � ��, 9'_ �� -� 3 aTST '�'-�`'_-F�. K -#,- �°'-'Ste,- �,ay-�»-s- �T-- - .- �, -'i' � •� `+ tr3. <br /> ' � �z <br /> 2 2 DRILLING ACTIVITIES _ <br /> c. c <br /> AGE proposes°to`install one ,grouni water monitoring well at the site as-part of sste assessment, E } <br /> - activities. The ro ased de screened monitorfn well location is-d acted m Fis e 2- <br /> p z iY 3 <br /> iY <br /> Based uponFlaboratary results,of ground water samplesfrom.existing monitoring wells at the_s�te, ; <br /> AGEproposes one ground water.momtoring well location in.the followzrig location <br /> -j •R �Betweed.•5 and 15:&e' west south <br /> wesf 6. well.AW-2 to'to :assess the vertical extent of ` g <br /> - petroleum h~drocarbon im acted ' ound:water,beneath.the site t3 <br /> _•: A soil boring will be advanced-to:approx mately.90 feet bsg-uti iziyng a°CME 7S truck mounted, <br /> - <br /> laollow stem-drill rig and 8!/4=inch diaineter_hollow stem-augers,how;ever;-:total depth of the.banng; <br /> may-slightly vary according,to hydrogeologic conditions encountered-dunng::dnlling activities -Field . <br /> procedures for advancement of borings and well:installation is presented m Section <br /> � a � - <br /> •ra+ r - a a.. - a '_ ,� �'",..-, x rP <br /> •Y h' `:kms'" i - r <br /> 2:3.° MONITORING'WELL INSTALLATION AND DEVELOPMENT e <br /> � . <br /> The proposed soil boring will be completed as a 2Femch diaineter ground=_water moni:tonng well h - <br /> Follow ng-well nstall, ion,-th•e-well:will:bed veloped.6:maximize::water.flow-and minimize the <br /> amount:of fine aired sediment drawn into the well dunir► um in '.or Bailin :Procedures for well <br /> Sr gpp g g , <br /> installaiion and:developmenf are presented in:Sections-3 land 3 4. 2, respectively`_ � <br /> g <br /> _GROUNI]:WATER SAMPLE COLLECTION�AND ANALYSIS <br /> Jq- <br /> Ground watermomtoring and=sampling activities for the deeper screened ground water monitoring <br /> _ t well will be conducted ori:iquarterly basis unless an altemate•schedule or suspension-of monitoring-A . . <br /> -,--is Appro-V-eii&­b <br /> 'e PHS-EHD. Giound water monxtonng'activiti. will iriclude-recording'depth to:z , <br /> F _ <br /> ground water measurements and collection of ground water samples Ground water,,sample collection _ <br /> procedures are described in Section.'3 5 - s; = <br /> Ground water_'samples"will be analyzed:by a Sta e of.Cahfornza Department of Health Services <br /> _.i +' _ � &- _ _g '-tl,__ � -•-, r`` _ .A <br /> 4 . <br /> ,--A dvancedCeoEnrironmcntal Inc <br /> - =5-' fc• <br /> w -t'1`•-*'.- i ., � s t t ,.^. r"'-_ ,.:a c i it a.- • -4�`.�.- �".? ,. � - _ •� ._'....� <br />