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<br />Waste Extraction Test (WET) on soil samples that exhibit total lead concentrations <br />greater than 50 mglkg and less than 1,000 mglkg. Samples that exhibit soluble lead <br />(WET) concentrations greater than 5 milligrams per liter (mg/L) will be reanalyzed <br />for soluble lead via the WET with deionized water used as the extractant (WET -DI). <br />For the purposes of this Proposal it is estimated that 43 samples will be analyzed for <br />soluble lead. <br /> <br />>- Perfonn QNQC for each method of analysis with specificity for each analyte listed in <br />the test method's QNQc. QA/QC will include the following: <br /> <br />- One method blank for every ten samples, batch of samples or type of matrix, <br />whichever is more frequent. <br /> <br />- One sample analyzed in duplicate for every ten samples, batch of samples or <br />type of matrix, whichever is more frequent. <br /> <br />- One spiked sample for every ten samples, batch of samples or type of matrix, <br />whichever if more frequent, with spike made at ten times the detection limit or at <br />the analyte level. <br /> <br />d) Report Preparation <br /> <br />A draft report will be prepared to summarize the results of the field activities and <br />laboratory testing in general confonnance with the requirements of Caltrans. The report <br />will include but not be limited to the following: <br /> <br />Background summary <br />Scope of services perfoITlled <br />Observations during the field activities <br />Results of field activities including laboratory results <br />Total and soluble lead statistics. <br />Site Plan and Vicinity Map indicating boring locations and project boundaries <br />Conclusions and recommendations <br />Appendices including laboratory reports and chain-of-custody documentation <br /> <br />Upon receipt and incorporation of review comments, four copies of the finalized report <br />will be provided. If contamination is found at actionable levels, additional coordination <br />with San Mateo County and/or Regional Water Quality Control Board will be required, <br />and a Remediation plan may need to be prepared for Caltrans and agency approval. <br />Additional coordination and investigation effort, including remediation planning, will be <br />considered as additional services. <br /> <br />1.12 Type Selection Report <br /> <br />The design of the new ramp bridge and specialty retaining walls will be prepared <br />following the Caltrans Type Selection process. tvITCo w1l1 review various altemativcs, <br /> <br />Ciry of Belmollr - Houre ¡OJ/Ralston Ave IC .Hodificariolls <br />Proposal - PS&£ <br /> <br />0 ï/O6/00 <br /> <br />s <br />