Field Exploration and Laboratory Testing. A. Site Visit to Clear Boring Locations: We will plan a visit to the project site prior to the explorations to mark the proposed soil boring locations for the underground utility locates. The public utility locate service will then be notified of our planned explorations. We also plan to subcontract a private utility locate company to evaluate whether there are subsurface utilities near the soil boring locations. After the boring locations are cleared, Krazan would be available to coordinate with the City’s Survey Consultant to allow the boring locations to be surveyed prior to the completion of the surveyor’s field work. KRAZAN & ASSOCIATES, INC. Proposal No. G24295WAL Everett Watermain Replacement “X” Everett, WA March 22, 2024 Revised April 2, 2024 B. Field Exploration: We plan to conduct twelve (12) soil borings at the Water Main Replacement “X” project locations using a subcontracted drill rig to investigate the subsurface soil and groundwater conditions. Soil samples will be obtained using the Standard Penetration Test (SPT) as described in ASTM Test Method D1586. An experienced engineer or geologist will visually classify soil samples obtained in the field, maintain logs of the soil borings and locate the borings on a site plan relative to the existing site features. The boring logs will include pavement types and thickness. Representative samples of the subsurface soils encountered in the geotechnical explorations will be collected and sealed in plastic bags for transport to our office laboratory. Soil cuttings will be collected and managed in accordance with WA DOE requirements. Environmental services, such as chemical analysis of soil and groundwater for possible environmental contaminants, are not included in our scope of services for this project. Soil cuttings will be and managed in accordance with WA DOE requirements by our drilling subcontractor provided that they are not contaminated. We will notify the City immediately if indications of contamination are noted — e.g., odor or staining is noted in the soil cuttings. If necessary, a change order will be submitted for analytical testing and disposal
Field Exploration and Laboratory Testing. Consultant will conduct a total of two (2) drilled borings with a small drill ridge that will be transported by gator and hand at the approximately locations of the west bridge Portland Parks & Recreation Exeltech Consulting, Inc. Xxxxxxxxxxxx Park Pedestrian Bridge Replacements Scope of Services abutments. Disturbed and undisturbed samples will be collected at 2.5-foot intervals to a depth of 15 feet and at 5-foot intervals between 15 and 25 feet. All field work will be observed and recorded by a geologist or geotechnical engineer. Consultant will drill two hand auger borings up to 15 feet at the east bridge abutments to verify the soil conditions. During drilling activity, Consultant will allow collection of soil samples by City of Portland staff for contamination analysis. Consultant will perform laboratory tests on disturbed and undisturbed soil samples obtained from the explorations to characterize the subgrade soils and to develop soil parameters for slope stability analysis and the trail embankment and bridge foundation design. The laboratory testing may consist of up to six (6) moisture content measurements, two (2) particle size distribution analyses, two (2) Atterberg Limit determination. Deliverable(s):
