1318 W MUKILTEO BLVD 2016-01-01 MF Import

Wrought Corporatron JN 062P' August 11, 2006 Page 2 located to the west. it is situated below the upper, southern end of the subject property, having a grade of about elevation 202 feet. SUBSURFACE The subsurface conditions were explored by excavating three test pits in the proposed residence area at the approximate locations shown on the Site Exploration Plan, Plate 2. In addition, two test holes were hand-excavated in the proposed driveway area where the test pits could not be excavated. Our exploration program was based on the proposed construction, anticipated subsurface conditions and those encountered during exploration, and the scope of work outlined in our proposal. The test pits were excavated on July 28, 2006 with a small trackhoe. A geotechnical engineer from our staff observed the excavation process, logged the test pits, and obtained representative samples of the soil encountered. "Grab" samples of selected subsurface soil were collected from the trackhoe bucket. The Test Pit Logs are attached to this report as Plates 3 and 4. Soil Conditions All test pits revealed native sand soii that was slightly silty near the ground surface. In a test pit excavated near the top of the central slope, the sand was loose to a depth of approximately 3 feet, becoming loose to medium-dense to a depth of about 6 feet. The sand then became medium-dense to the maximum explored depth of 7 feet. The sand revealed in test pits in the flat upper and lower areas of the site became medium-dense at depths ranging from approximately 2 to 3.5 feet. The sand became denser at depths of about 4 to 5 feet and was revealed to the maximum explored depth of approximately 10 feet. We used hand equipment to excavate two test holes in the area of the proposed driveway. We found that the upper few feet consisted of loose fill that was underlain by the loose native sand. The native sand became medium-dense or denser at a depth of about 8 feet. Groundwater Conditions No gruundwater seepage was observed in the test pits. We do not anticipate that groundwater will be a significant issue in the development of this property. The stratification lines on the logs represent the approximate boundaries between soil types at the expioration locations. The actual transition between soil types may be gradual, and subsurface conditions can vary between exploration locations. The logs provide specific subsurface information only at the locations tested. The relative densities and moisture descriptions indicated on the test pit logs are interpretive descriptions based on the conditions observed during excavation. The compaction of backfill was not in the scope of our services. Loose soil will therefore be found in the area of the test pits. If this presents a problem, the backfill will need to be removed and replaced with structural fill during construction. GEOTECH CONSULTANTS,INC.