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April 28, 2006 <br />Project No. 06 -21630 <br />Arabela Saldivar <br />City of Santa Ana <br />Conununity Redevelopment Agency <br />20 Civic Center Plaza <br />Santa Ana, CA 92702 <br />Rincon Consultants, Inc. <br />5355 Avenida Encinas, Suite 103 <br />Carla of A, California 92008 <br />7 60 918 9444 <br />FAX 918 9449 <br />i of ocarin c on con su lta iris. c om <br />wvre. rinconconsultants. com <br />Subject: Asbestos Survey and Lead -Based Paint Testing Services <br />710 61h Street, Santa Ana, California <br />Dear Mrs. Saldivar: <br />This letter summarizes the sampling activities and results of our limited asbestos <br />survey and lead -based paint testing services for the property located at 710 61:11 <br />Street, Santa Ana; California. On April 10, 2006 Ambient Environmental <br />performed an asbestos survey and lead -based paint testing at 710 6111 Street under <br />the supervision of Rincon Consultants. A total of 10 bulk samples were collected <br />for asbestos analysis, and a total of 34 lead -based paint analyzer readings were <br />collected from the site. A summary of the laboratory results for the asbestos <br />samples and the lead -based paint analyzer readings are included in Sections 5 <br />through 9 of Ambient Environmental, Inc.'s report (attached). <br />Ambient collected 10 bulk asbestos samples from various homogenous building <br />materials observed at the property. A homogenous building material refers to a <br />material that is uniform in texture, color and date of application. Asbestos <br />samples were collected from the following homogenous building materials: roof <br />mastic, roofing material, exterior stucco, and interior plaster. Positive asbestos <br />results were detected in samples collected from roof mastic. Asbestos results are <br />based on the percentage of asbestos detected in the sample. Results show that <br />the roof mastic was 7% Chrysotile. Samples collected from the remaining <br />homogenous building materials had non- detect asbestos results. <br />If the above mentioned roof mastic will be disturbed during any demolition, <br />replacement or removal activities, then the said materials should be removed by <br />an Independent State Certified Asbestos Consultant with oversight by a State <br />Certified Surveillance Technician prior to the proposed work. <br />19F -23 <br />E n v r o n m e n t a l S C 1 8 n l i s f s P l a n n e r s E n g i n e e r s <br />