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,%X.. <br /> a log of sorts. According to Ron Rall, a technician for the <br /> setvices district, the well is 450 feet deep and contains a 25 <br /> hp. electric pump capable of delivering approximately 380 gallons <br /> per minute. The well has an open ended casing and is perforated <br /> from 89 to 214 feet. Mr. Rall said that when the well was opened <br /> up for service (9 January 1986) it was treated with hypochlorite <br /> to insure against bacterial contamination. The chlorine residual <br /> is purged fairly quickly from a heavily used well and it is the <br /> opinion of the staff that this was riot the cause of the <br /> contamination. <br /> A sample and a duplicate sample were collected 11 June 1987 . <br /> Chloroform was not detected in the sample but the duplicate <br /> sample showed 0. 5 ppb. Seven other domestic wells were sampled to <br /> gain information about the water quality in the Study Area. <br /> Results of sampling are presented in Table I and on Map No. 5. It <br /> was hypothesized that a leaking swimming pool might be a source <br /> of the contamination. Two swimming pools were sampled to <br /> determine the levels of chlorine they contained. The owners were <br /> also questioned about water loss. No leaks were reported. The <br /> presence of elevated chloroform levels to the south lead to the <br /> discovery of the Triple "E" facility. <br /> Triple "E" Produce Corporation was first contacted 6 July 1987 . <br /> The facility was inspected 17 July 1987 (inspection report <br /> Exhibit A) . They, like almost all fresh vegetable packing houses, <br /> treat their produce and facility with chlorine to control molds <br /> -15- <br />