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23 September 2005 AGE-NC Project No. 05-1330 Page 17 of 18 estimate indicated that less than 2% of the applied chemical is lost to runoff. Microbes are primarily responsible for the breakdown ofthe product,and volatilization or photodegradation losses will be negligible.In water,glyphosate is strongly adsorbed to suspended organic and mineral matter and is broken down primarily by microorganisms; its half-life in pond water ranges from 12 days to 10 weeks. • An air compressor was noted near the garag ;no soil staining or��dors were noted in the �- vicinity of the compressor. . • The subject property was served by municipal water and sewer systems. • There had been recent upgrades to the storm water sewer system near the property and some of the soil from sewer line excavation was spread on part of the yard area. The property was surrounded by a water-runoff ditch along the south and east boundaries; a storm water grate was noted at the so=heidhe property. • There were quo obvistained soil or burned and distressed vegetation noted on the subject�toQe of t�ielssidence was landscaped; dried grasses were noted in the area between the street and the fencing. • AGE noted no evidence of the current or past use of ASTs,USTs or fill pipes fUSTs, n the undeveloped portion of the property or in the residential complex. • The residential complex was not ins ec d for asbestos-containing materials(ACMs). AGE has no direct knowledge that a residential structures contains ACMs. There were no items of apparent environmental concern noted on the subject property at the time of the site visit except for the possible presence of asbestos-containing materials in the residential buildings ; housekeeping issues were noted, but no obvious items of Recognized Environmental Concern were encountered. 8.0. SAMPLING AND RESULTS No sampling was done for this investigation. _ 9.0. SUMMARY AND CONCLUSIONS We have performed an investigation into the current and historical uses of the property located at 4175 Homer Avenue, Stockton, California, the subject property. San Joaquin County Ordinance 9 905.12(a)was used as a guideline to perform this assessment. .� Advanced GeoEnviroamental,Inc.