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<br />I <br /> <br />I <br /> <br />- --... <br />-~ <br /> <br />-~ <br /> <br />city of San Marcos <br />Mr. Rodney Cobb <br /> <br />January 10, 2006 <br />Page 2 of5 <br /> <br />Laboratory Testing <br /> <br />Laboratory tests (natural water contents, Atterberg limits, and grain size analyses) will be <br />performed to classify soil strata and evaluate plasticity and gradation. Unconfined compression <br />tests will be conducted on selected clayey soil specimens to evaluate the compressive strength <br />of the subsurface strata. Standard penetration tests will be conducted in the borings to evaluate <br />relative density and strength of sand/gravel soils. <br /> <br />Engineering Services <br /> <br />Engineering analyses of the results of the field and laboratory test results will be made to <br />develop geotechnical recommendations for various repair options. The report will include the <br />following: <br /> <br />1. General subsurface conditions, including boring logs with descriptions of strata, <br />summaries of laboratory test results, and water levels obtained at the time of drilling <br />prior to using drilling fluid to core rock. The boring logs will include an estimated <br />ground surface elevation at each boring location if a topographic map or other existing <br />elevation data is provided to us. Our budget does not include a boring <br />location/elevation survey; <br /> <br />2. Boring location plan: <br /> <br />3. Geotechnical related repair/modification parameters including bearing capacity (if <br />applicable), filter criteria, anchor systems, grouting requirements. and retaining wall <br />earth pressures; <br /> <br />4. General remedial repair construction recommendations; <br /> <br />5. Recommendations for earthwork. <br /> <br />Also included in our budget is engineering time for consulting services and support for <br />geotechnical related issues. <br /> <br />Construction Materials Testing <br /> <br />Construction materials testing of mass concrete, reinforced concrete. grout, and, if <br />applicable, roller compacted concrete (RCC) will be conducted during construction of the <br />remedial repairs. We anticipate these services will be provided on an on-call basis. Since the <br /> <br />I_@ <br />