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Port of Everett Combined Sewer Main Improvements Environmental Support Landau Associates <br />observations of excavation sidewalls and field screening observations of excavated soil (including <br />visual, olfactory, and sheen) will -be documented in daily field reports. These daily field reports will be <br />reviewed prior to transmission to the City on a weekly basis. <br />LAI will also collect and submit waste characterization soil samples for laboratory analysis to support <br />development of a waste disposal profile with an appropriate disposal facility; as selected by the City's <br />construction contractor. Waste characterization soil samples will be collected for a total of two <br />profiles, which are anticipated to be a geotechnically unsuitable soil profile and potentially <br />contaminated soil (as determined by field screening and/or characterization sampling) profile. Three <br />samples will be collected for each initial profiling and three additional as -needed samples per profile <br />will be collected as excavation continues. Selection of waste characterization soil analysis will be <br />based on prior waste profiling experience at the K-C Site and is anticipated to include diesel- and oil - <br />range total petroleum hydrocarbons (TPH-D, TPH-O); benzene, toluene, ethylbenzene, and xylenes <br />(BTEX); semivolatile organic compounds (SVOCs); metals (Resource Conservation and Recovery Act <br />[RCRA] 8 Metals plus copper and zinc), polychlorinated biphenyls (PCBs), and sulfate. Up to two <br />follow-up samples will also be analyzed for toxicity characteristic leaching procedure (TCLP) metals, if <br />needed. Estimated costs assume laboratory analysis will be requested with an accelerated 5-day <br />turnaround time. Following receipt of analytical data, LAI will assist the City prepare waste profile <br />applications. <br />LAI also has budgeted for supporting the City if additional unanticipated hazardous materials are <br />encountered during excavation that warrant additional coordination with Ecology, soil <br />characterization and profiling, or observation. Up to 16 hours at both the Senior Associate and Senior <br />Staff billing titles, and laboratory costs for analysis of an additional five samples are included in the <br />estimated cost for this purpose. <br />Task 014. Reporting <br />This task includes preparation of a construction completion report that documents observations <br />collected during excavation, a summary of laboratory analytical results, documentation of soil <br />exported from the site for disposal, and a description of unanticipated conditions or hazardous <br />materials encountered during the project and any additional actions taken. LAI assumes a moderate <br />level of effort will be necessary for preparation of this report and assumes preparation of a City - <br />review draft and final version of the report. <br />Task 015. Project Management <br />Project management includes project setup and closure, contracting, budget tracking, and <br />coordination/communication with the City. This task also includes internal coordination of the project <br />consisting of staffing, subcontracting, field equipment/materials billing tracking, and management of <br />project documentation. <br />January 19, 2022 3 <br />