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PROPOSED RESIDENTIAL STRUCTURE
I I DEEP SEA (LOT 22), NEWPORT BEACH, CA
Geotechnical Investigation Report
Proiect No. 031-18
Construction should be observed and tested, if necessary, at the following stages by the Soils
Engineer and/or his/her representative.
■ Exposing of over -excavated bottom,
■ Presaturation of exposed bottom,
■ During bacljilling operations,
■ During compaction operations,
■ Excavations of the footing trenches,
■ During trench bacljilling, and
■ When any unusual conditions are encountered.
It is the responsibility of the property owner or his authorized representative to review the
recommendations made by GEI and to authorize the contractor to perform such work as required to
comply with such recommendations. The contractor and/or property owner shall have the
responsibility to inform GEI of the starting date of construction and anticipated period during which
testing and/or observation by the Soils Engineer and/or his/her representative will be needed. Any
backfill performed without testing as specified by the Soils Engineer and/or his/her representative
and the Orange County Grading Code cannot be approved or certified by the Soils Engineer and/or
his/her representative.
10.0
1. Blake, T.; (2000a), EQFAULT, A Computer Program for the Deterministic Prediction of
Peak Horizontal Acceleration from Digitized California Faults, User's Manual.
2. California Division of Mines and Geology, (1997), Guidelines for Evaluating and Mitigating
Seismic Hazards in California, Special Publication 117, p.74.
3. California Division of Mines and Geology, (1975), Recommended Guidelines for
Determining the Maximum Credible and the Maximum Probable Earthquakes, Note 43.
4. CDMG (1975), "Recommended Guidelines for Determining the Maximum Credible and the
Maximum Probable Earthquakes," Technical Note No. 43, California Division of Mines and
Geology, Sacramento, California, 1p.
5. Grant, L.B., Mueller, K.J., Gath, E.M., Hai, C., Edwards, R.L., Munro, R., and Kennedy,
G.L., 1999, Late Quaternary Uplift and. Earthquake Potential of the San Joaquin Hills,
Southern Los Angeles Basin, California: Geology, V. 27, No. 11, Pages 1031 —1034.
6. Seed, H.B. (1987). "Design Problems in Soil Liquefaction." Journal of Geotechnical
Engineering, ASCE. Vol. 113, no. 8. pp. 827-845.
7. Seed, H.B., Idriss, I.M., and Arango,l (1983). "Evaluation of Liquefaction Potential Using
Field Performance Data." Journal of Geotechnical Engineering, ASCE, vol. 109, no. 3, pp.
458-482.
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April 17, 2006 16 Geo -Environmental, Inc,
PROPOSED RESIDENTIAL STRUCTURE
11 DEEP SEA (LOT 22), NEWPORT BEACH, CA
Geotechnical Investigation Report
Project No. 031-18
ILLUSTRATIONS
April 17, 2006
Geo -Environmental, Inc.