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• Swelling soils occur on this site. These soils are stable at their natural moisttu~e content but can shrink or <br />swell with changes in moisture. The behavior of swelling soils is not fully understood. The swell potential <br />of any particulaz site can change erratically both in lateral and vertical extent. Moisture changes also occur <br />enatically, resulting in conditions, which cannot always be predicted. The recommendations presented in <br />this report are based on the current state of the art for foundations and floor slabs on swelling soils. The <br />owner should be aware that there is a risk in construction on these types of soil. Performance of the <br />building will depend on following the recommendations and in proper maintenance after construction is <br />complete. As water is the main cause for volume change in these soils, it is necessary that the changes in <br />moisture content be kept to a minimum. This requires judicious irrigation and providing positive surface <br />drainage away from the building. Any distress noted in the building should be brought to the attention of a <br />professional engineer. <br />This report is based on the investigation at the described site and on the specific anticipated coostntction as <br />stated herein. If either of these conditions is changed, the results would also most likely change. Therefore, <br />we strongly recommend that our fain be contacted prior to finalizing the construction plans so that we can <br />verify that our recommendations have been properly incorpornted into the building plans. Man-made or <br />natural changes in the conditions of a property can also occur over a period of time. Tn addition, changes in <br />requvements due to state of the art knowledge and/or legislation do from time to time occur. As a result, <br />the findings of this report may become invalid due to these changes. Therefore, this report is subject to <br />review and not considered valid after a period of 3 years or if conditions as stated above are altered. It is <br />• the responsibility of the owner or his representative to insure that the information in this report is <br />incorporated into the plans and/or specifications and construction of the project. It is advisable that a <br />contractor familiaz w construction details typically used to dealing with the local subsoils and climatic <br />conditions be retaine o build the structure. If you have any questions regazding this report or if we may be <br />of further service, pl a do notJ~esitate to contact us. <br />Sincerely, <br />NORTHWEST CONSULTANTS, INC. <br />Timothy <br />750 <br />L9n, P <br /> <br />)ob Number: 03.5838 NWCC, Inc. Page 9 <br />