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MAR-1.B-66 19.46 FROM. AGUIRR~NCINEERB INC. ID. • Mr, and Mrs. Tatum March 18, 199b Page 6 PACE B We observed many crecka, typically of hairline width, that we consider normal aging of en adobe structure. Wa saw oraoke that have been pointed or plastered over fn the pest. Thus, normal aging is taking place at the residence. In our opinion, however, the aavara cracks in the.easterly, two-story portion of the residence, and possibly some of the otlwr fraaher cracks located elsewhere, are not the result of norrnaf aging. In our opinion these are due to settlement or other of fotlrtdat[on movement. 2. Water Le oe It.hes been suggested that leakage through crocks In the roof, and/or the drainage scuppara has allowed water to penetrate and weaken the adobe. This has happened locally at the upper seat end of the south well. However, In our opinion moat of the cracks In the structure are not the result.vf water leakage. 3. ~ Old Cotton+Kood Troas Two large oottonwood trees haw been removed at the northeast corner of the residence. T'Fw there to four toot diameter atumpa hsve not been removed, nor. have the roots. It hea been suggested that the remaining roots may be rotting, creating a void or weak zone In the ground under the residence. In our opinion, rotting Of the old tree roots could not explain the greater part of the damage observed at the residence, even if it ware occurring. The cottonwoods likely extended their roots into the water-bearing zone within the gravel terrace. In our opinion the roots could only effect Immediately adjacent parts of the residence, end the roots would moat likely have tended to Ilft the residence while the trees were growing. In our opinion the distress obprvsd veer the rortheast corner of the residence is unlikely to have heart caused by growlrq or rotting roots. 4. ~{loh Water Table Previous investlgetora have observed the standing water in the basement sump and haw suggested that groundwater may have produced a softening or weakening of the ground, resulting In settlamant. Groundwater would have been present and tluctueted naturally since the time the building was constructed. We saw no indication of recent groundwater conditions different from those which have always existed. Therefore, the natures occurrence end fluctuetlons of the groundwater cannot explain the recent movements at the structure. r,~,epol~~aof eo1.e.