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STORM DRAIN INSPECTION <br /> On December 8, 1986, Mr. David Bates of Marley Cooling Tower Company <br /> and Mr. Thomas Hickey of Black & Veatch conducted an internal physical <br /> inspection of the existing storm drains on the North Yard of the Marley <br /> Cooling Tower Company Stockton, California facility. The catch basins and <br /> the storm drains are indicated on Figure 1. <br /> Grates were removed from selected catch basins. The catch basins were <br /> entered and the interiors of the drains were observed. Additional light <br /> was provided from opposite end catch basins as needed for observation of <br /> the entire drain reach inspected. <br /> Personnel entering the catch basins were garbed in protective clothing <br /> to prevent dermal contact with storm water or collected solids. Since the <br /> drain system is continuously vented and catch basins entered are all <br /> relatively shallow, no artificial ventilation was used to supplement <br /> natural fresh air supply. <br /> No structural defects were observed in any catch basins entered. <br /> Concrete pipe materials in drain lines were in excellent condition. No <br /> defects in pipe materials or joints were observed. Specific observations <br /> for each reach are indicated below: <br /> Catch Basin Reach <br /> Entered Observed Observations <br /> B B-A No observed offset or deteriorated joints. <br /> Clean straight pipeline. <br /> B-C No observed offset or deteriorated joints. <br /> Clean straight pipeline. <br />