4808 BELVEDERE AVE 2016-01-01 MF Import

Timberbuild Homes September 20, 2005 JN 05357 Page 2 The test pits were excavated on September 6, 2005 with a rubber-tired backhoe. A geotechnical engineer from our staff observed the excavation process, logged the test pits, and obtained representative samples of the soil encountered. The Test Pit Logs are attached to this report as Plates 3 and 4. Soil CondJtions A test pit excavated near the upper, nortF;eastern comer of the site, also near the northeastem corner of the proposed residence, revealetl native, loose to medium-dense, slightly silty sand to a depth of about 4 feet. The sand then became less silty and medium- dense to a deptY� of about 8 feet, at which depth the sand became slightly gravelly and medium-dense to dense to the maximum explored depth of approximately 10 feet. A test boring was drilled on a property north of the subject site, and similar soils were found. The medium-dense to dense sand was found in the test boring to a depth of about 20 feet, at which depth it became dense to very dense. In the second test pit, ex�:avated near the northwestem comer of the proposed residence, the upper soil revealed 18 inches to 3 feet of loose fill. It is apparent that this fill was placed when the street was constructed. Below the fill was the native, loose to medium-dense, slightly silry sand. This test pit could only be excavated to a maximum explored depth of 6 feet. We anticipate that the medium-dense sand was located just below this depth. Groundwater Cond/Uons No groundwater seepage was observed in the test pits, but they were left open for only a short time period. Therefore, the static groundwater level may have not been encountered in the test pits. It should be noted that groundwater levels vary seasonally wilh rainfall and other factors. We believe that groun�iwater could be in the soils in the lower elevation of the property during the normally wet winter and spring months. The stratification lines exploretion locations. conditions can vary information only at the on the test pi`. logs excavation. on the logs represent the approximate boundaries between soil types at the The actual transition between soil types may be gradual, and subsurface between exploration locations. The logs provide specific subsurface locations tested. The relative densities and moisture descriptions indicated are interpretive descriptions based on the conditions observed during The compaction of backfill was not in the scope of our services. Loose soil will theretore 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. CONCLUSIONS AND RECOMMENDATIONS GENERAL THIS SECTION CONTAINS A SUMMARY OF OUR STUDY AND FINDINGS FOR THE PURPOSES OF A GENERAL OVERVIEW ONI.Y. MORE SPECIFIC RECOMMENDATIONS AND CONCLUSIONS ARE CONTAINED IN THE REMAINDER OF THIS REPORT. ANY PARTY RELYING ON THIS REPORT SHOULD READ rHE ENTIRE DOCUMENT. GEOTECH CONSUITANTS, INC.