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Bayley Construction | March 12, 2025 Page 5 <br />File No. 0661-144-00 <br />2.Drill two borings to a depth of 40 feet using a truck-mounted drill rig. The borings will be converted into <br />monitoring wells. These two wells will also be instrumented with pressure transducers. Following the <br />drilling, IDW will be treated as described in Task 200. <br />3.Following completion of the two borings, we will perform laboratory testing of soil and include the <br />updated findings in a final version of the geotechnical report. <br />ADD ALTERNATE 1 (TASK 302). ENVIRONMENTAL SAMPLING <br />1.Field screening of soil from each boring for visual and olfactory evidence of contaminants and for <br />volatile organic compound (VOC) concentrations in vapor using a photoionization detector (PID). Two <br />soil samples will be collected from within the first 15 feet below ground surface (bgs) of each boring <br />(22 samples assuming all 11 borings will be drilled) for selected laboratory chemical analyses for <br />contaminants of potential concern. Based on field screening, up to five additional soil samples may be <br />collected from depths greater than 15 feet bgs also for selected chemical analyses, for a total of 27 <br />samples. The soil samples will be placed on ice in a cooler and submitted to OnSite Environmental Inc. <br />of Redmond, Washington (OnSite) for analysis under standard chain-of-custody protocols. <br />2.We will submit the soil samples for selected analyses for one or more of the following contaminants of <br />interest: <br />Total petroleum hydrocarbons as diesel-range organics (TPH-D) and as oil-range organics (TPH-O) <br />by Northwest Method NWTPH-Dx; <br />Total petroleum hydrocarbons as gasoline-range organics (TPH-G) by Northwest Method NWTPH- <br />Gx; <br />VOCs, including benzene, toluene, ethylbenzene and xylenes (BTEX) and halogenated VOCs <br />(HVOCs), by U.S. Environmental Protection Agency (EPA) Method 8260D; and <br />Resource Conservation and Recovery Act 8 metals (arsenic, barium, cadmium, chromium, mercury, <br />lead, silver, selenium) by EPA Method Series 200/6000/7000. <br />3.We will prepare an email summary of the findings from the soil chemical analysis. <br />TASK 400. FINAL DESIGN SUPPORT <br />1.Collect the groundwater data from the three previously installed monitoring wells. <br />2.Attend project team meetings during the design phase and provide consultation to the project team <br />during design. <br />3.Review the project shoring, dewatering, civil, and structural plans. <br />Schedule, Terms and Fees <br />We are prepared to begin Task 200 services immediately under our current NTP for environmental services. <br />Task 300 drilling is scheduled for March 17, 2025. One Call markings will need to be performed at least <br />one week prior to the start of drilling. Our field explorations will take approximately five days. We will then <br />submit samples to the laboratory for testing. We plan to issue our draft geotechnical report by <br />April 21, 2025. Once right-of-entry agreements are obtained for 2105 Pacific Avenue and 2201 Pacific <br />Design-Build Contract for Everett Outdoor Events Center <br />Exhibit C - Phase 1A Work and Fee Proposal