933 S Harmon St Unit #2 - Plan - Laserfiche WebLink

Home Browse Search

April 16, 2025 Page 10 CITY OF SANTA ANA Planning and Building Agency Project Number 25129-25 Approved FOR PERMIT ISSUANCE 7.9 Expansive Soil The upper on -site soils are very low in expansion potential (El 0-20). W olaswisilhave an expansion index (EI) of 20 or more, special attention should be given to the m%a design and maintenance. The attached Expansive Soil Guidelines should be reviewed by the engineers, architects, owner, maintenance personnel and other interested parties and considered during the design of the project and future property maintenance. Expansion test results may be found on the attached Table H. 7.10 Corrosion Design Criteria Representative samples of the surficial soils, typical of the subgrade soils expected to be encountered within foundation excavations, were tested for sulfate potential. According to Table 4.3.1 of ACI 318 Building Code and Commentary, these contents revealed negligible sulfate concentrations. Therefore, a Type II cement according to latest CBC specifications may be utilized for building foundations at this time. It is recommended that additional sulfate tests be performed at the completion of site grading to ensure that the as graded conditions are consistent with the recommendations stated in this design. Corrosion test results may be found on the attached Table III. 8.0 Closure The recommendations and conclusions contained in this report are based upon the soil conditions uncovered in our test excavations. No warranty of the soil condition between our excavations is implied. NorCal Engineering should be notified for possible further recommendations if unexpected to unfavorable conditions are encountered during construction phase. It is the responsibility of the owner to ensure that all information within this report is submitted to the Architect and appropriate Engineers for the project. This firm should have the opportunity to review the final plans (72 hours required) to verify that all our recommendations are incorporated. This report and all conclusions are subject to the review of the controlling authorities for the project. NorCal Engineering