Laserfiche WebLink
GEOMATRIX <br /> Two quarterly samples from the DMP wells will be required to verify that residual effects of <br /> well installation have dissipated and that representative groundwater samples are being col- <br /> lected. The third quarterly sample collected will be analyzed for the all constituents of concern <br /> (COC), assuming the results of the first two samples are indicative of aquifer conditions. <br /> Initial groundwater samples will be submitted for analysis in accordance with the quarterly <br /> monitoring requirements of Monitoring and Reporting Program No. 97-229. Additional <br /> inorganic analyses will be performed to evaluate groundwater quality and to aid hydrogeologic <br /> characterization. The constituents to be analyzed are summarized below: <br /> • Inorganic constituents including chloride, sulfate, nitrate as nitrogen,TDS, <br /> ammonia, phosphate, potassium, bicarbonate, carbonate, sodium, calcium, and <br /> magnesium. <br /> Quality assurance/quality control samples will also be collected and submitted to the laboratory <br /> for analysis. One duplicate sample will be collected each quarter. When VOC analysis is <br /> required, one or more equipment blanks, one field blank per day, and one trip blank per sample <br /> shipment will be collected. All groundwater samples will be placed in laboratory-prepared <br /> sample containers and labeled with a unique sample control number, date of collection, and <br /> project number. A sample control log will be prepared to identify the sample control numbers <br /> with the appropriate well number, depth, and other pertinent criteria. <br /> 5.4 REPORTING <br /> Geomatrix will prepare a DMP report documenting the installation and initial sampling of the <br /> four DMP wells. The report will include tabular and graphical data summaries of monitoring <br /> well construction information, boring logs, a map of groundwater occurrence, and laboratory <br /> analytical results for initial samples. <br /> 6.0 SCHEDULE <br /> We anticipate that permitting and other pre-field work will be complete and field activities will <br /> start about 4 weeks after approval of this work plan by the RWQCB (pending availability of the <br /> drilling contractor). The field activities (well installation, development,pump installation, and <br /> sampling) are expected to require about 1 week. <br /> Preparation of the DMP report will begin as soon as the field work has been completed. We <br /> estimate that the DMP report in draft form will require approximately 6 weeks to complete <br /> after receiving the laboratory analytical data. A final version for submittal to the RWQCB will <br /> be completed about 2 weeks after receiving comments on the draft. <br /> I:IPROJECA6741.000\6741-06.doc 5 <br />