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July 25, 2024 <br />HWA Project No. 2024-231-21 <br />East Marilyn Avenue Culvert 4 HWA GeoSciences Inc. <br /> <br />Category 2: Sensitive information <br />Category 2: For official use only / disclosure permissible by law. <br />ASSUMPTIONS <br />• The geotechnical explorations proposed herein will not be used to assess site <br />environmental conditions. However, visual or olfactory observations regarding <br />potential contamination will be noted. Analysis, testing, storage, and handling of <br />potentially contaminated soil and groundwater (either sampled or spoils from <br />drilling) are beyond this scope of services. If contaminated soils and/or <br />groundwater are encountered, the material will be properly contained on-site for <br />disposal as mutually agreed upon without additional cost to HWA. <br />• Drilling will be completed in one (1) day. We anticipate work hours will extend <br />from 8 AM to 4 PM, as necessary. <br />• All non-contaminated drilling spoils will be drummed and removed from the site <br />for disposal. <br />• No groundwater monitoring wells will be installed as part of this project. <br />• The boring will be conducted within the City right-of-way and will not require <br />any rights-of-entry. Any street use permits will be provided by the city at no cost <br />to HWA. <br />• No rehabilitation of the drilling area, other than patching the pavement core with <br />quick drying cement upon completion of geotechnical boring, will be required. <br />• A site survey will be provided to HWA in support of design recommendations. <br />• All field work will be accomplished during normal daylight workdays and hours, <br />with at least a minimum 8 hours available per day. <br />• Utility locates, via the One-Call Utility Locate Center, will be comprehensive and <br />accurate enough to allow reliable and safe location of borings. Vacuum extraction <br />of borings is not included. <br />• No infiltration testing or design will be completed as part of this scope. <br />• Following finalization of the geotechnical report, all soil samples will be disposed <br />of. Long-term storage of soil samples by the Consultant is not included. <br />• Design effort assumes the soil conditions will support a 3- or 4-sided box culvert <br />without ground improvements or deep foundations. <br />  <br /> <br />  <br /> <br /> <br /> <br />