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GEOSCIE.NCE will I attend Ona, I)Mconstructan meeting
<br />with the selected Contractorand City personnel to review
<br />key Issues within the contract documents and technical
<br />specifications. In addition, questions will be addressed
<br />regarding hydrogeologio and logistical matters. Items to be
<br />discussed at the Meeting will Include (but not be limited to)
<br />required submittals and Inspections, permitting, discharge
<br />Issues, wort schedule, invoicing, and communication
<br />protocols. Additionally, At the time of the 6re-construction
<br />meeting, the PrOsPectIVO COrdfactor will have the
<br />Opportunity to Visit the Well Site to satl* themselves
<br />regarding conditions that may affisat equipment set up,
<br />At the time of the Mating, the Contractor will have the
<br />opportunity to -point out ari Issues that they may have
<br />regarding Preparation of the site for the work. GEOSCIENCE
<br />will coordinate Contractor activittat prforlo mobilization.
<br />This Will I nolude verifying that the Contractor has provided
<br />all submittals required by the technical specifications
<br />And that equipment delivered to the q1te masts the
<br />requirements of -the spoulliAstiont. it is assumed that elf
<br />rehabilitation work will bO bid Under one contract and that
<br />quen'dAnceat oply-one pro -construction meeting for this
<br />Phase will be necessary.
<br />S. Technical Plans and Specifleatfons
<br />GEOSOIENCE will prepare detailed technical plans and
<br />specifications for the rehabilitation of the0tywell based
<br />on observations ohtalhed In Phase 1, Including a detailed
<br />Uld soNOule with Specific line Items showing units and
<br />unit quantities for the work. Items Included In the technical
<br />specifications will Include (but are not limited to) the
<br />fdllowlng,�
<br />Well location, depth, dimensions, and materials;
<br />Permits and regulatory requirements,
<br />Compliance with discharge requirements (as
<br />necessary);
<br />Job conditions (e.g., noise suppression, waste
<br />materials, runoff management, power, fighting, water,
<br />security, sanitation, parking, traffic control, and work
<br />damage);
<br />Mobilization, demobilization, clearing, grubbing, and
<br />site 01104npp;
<br />Fqulpment, materials, and records to be furnished by
<br />the Contractor,
<br />• Records to be kept by the Contractor;
<br />• Well repair by awaging;
<br />• Well cleaning by brushing and balling;
<br />• Well cleaning by chemical ln)ectlory
<br />• Wall redevelopment by airlifting And swabbing;
<br />Well tOd6VaIOPmOnt by Pumping and surgire
<br />Aquifer pumping And recovery test protocol;
<br />Flowmeter survey,
<br />field ground water quality monitoring protocol;
<br />Ground water sampling protocol;
<br />Post-rehabilltation 'dual-oarri' downhole video survey,
<br />and
<br />Final wall disinfection.
<br />GCOSCIENCE willaubmit an eleatronlacopyof`4 l00%
<br />DRAFF varsion of the technical plans andspapliketionsto
<br />the City, for review and comment Comments to the draft
<br />will I* Incomaratod and Gizost;IFNcE will submit one (1)
<br />9160tronic-OPY And thrft �3) bound hard copies of the
<br />100% FINAL technical specifications,
<br />4. Field Inspecition
<br />a. Well Modification by $waging,
<br />V Any damage to the "if MIrvg And 6qftn Is observed
<br />from the.downhole videpaUrvey, It may be nocesseryto
<br />Awaga Patch to stabilize filter packendlonngion material
<br />from entering the.we[I during operation.. it this is O'earned
<br />necessary, GEOSCIENCE will Providefulltime Inspection
<br />while -any patches or repairs are mads,
<br />4, Initial Brushing and Bailing of Wall Caging and Screen
<br />A vigorous mechanical brushing, procedure should be
<br />IMPlamented to loosen and dislodge a maximum amount
<br />ol'surfaceenorustation and/or blo. ullogmayertals.
<br /> fo
<br />GEOSGIENCE will provide part-time msj�aotjon during
<br />brushing andballing of the Well to monitor the progress
<br />of the task and to enSUrO that the Proper methods and
<br />bAulprhent are employed, GEOSCIENCEMil provide
<br />direction to Contractor regarding problem areas of the well
<br />soreen that maYreqUire additional work.
<br />c. Chemical Rehabilitation
<br />FOHOWIng MOchanloal rehabilitation, the Well should
<br />undergo chemical cleaning to remove bieflim produced
<br />by bacteria, clays and fine-grained sediments, as well
<br />as assisting In removing biological And mineral deposits
<br />that may be CIDOWngthe perforations, and near -well zone.
<br />The exact nature of the chemicals to be used shelf be
<br />recommended based On the results of the downhole video
<br />survey (Phase 1) and review of the wells water chemistry,
<br />GEOSCIENCE will provide full-time inspection during Mixing
<br />and application of the chemical mixture to ensure proper
<br />chemical concentrations and proper dispersal throughout
<br />the well casing and screen,
<br />d. Initial Redevelopment by Swabbing and Airlifting
<br />25E-511
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