07/08/1991 Meeting (2) - Laserfiche WebLink

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e Responding to a question from Mr. MacDonald, Mr. Ollerenshaw said that the ordinance defines "significant industrial user" on page 10 of the ordinance. An industrial user must meet only one of the criteria to be considered under that definition. Mr. MacDonald voiced concern with the dumping of antifreeze (ethylene glycol) into the sewer system. He noted that a staff memo indicated that the dis- charges of this substance are not considered serious enough to take further action. In response, Mr. Ollerenshaw said that a small radiator shop discharging some antifreeze would not likely fit the definition of significant industrial user. He said that there are two major types of pollutants in used anti- freeze--ethylene glycol and heavy metals. Ethylene glycol is an organic compound that is easily biodegraded at the treatment plan and would not pass into the river. At the request of the EPA, the City has tested waste streams discharged into the system, and has determined that concentrations of those metals in the waste stream are below the proposed local limits. Mr. Ollerenshaw explained that local limits are established based on a number of potential pathways for the pollutant. The City uses the most restrictive calculation and adds a 25-percent margin of error. Mr. Ollerenshaw described the calculation process for a pollutant and said that the calculation in- cludes an additional margin of error to account for potential undocumented discharges. e Responding to a question from Mr. MacDonald, Mr. Ollerenshaw said that if this were a storm sewer issue, the dumping of antifreeze into the system would be more critical. The City Code prohibits the discharge of antifreeze into the storm sewer system. CB 4322--An ordinance amending Sections 6.400, 6.405, 6.410, 6.415, 6.420, 6.425, 6.430, 6.435, 6.440, 6.445, 6.450, 6.455, 6.460, 6.465, 6.470, and 6.690 of the Eugene Code, 1971; addition of Sections 6.427, 6.432, 6.434, 6.462, 6.463, and 6.464 to that Code; and declaring an emergency. Mr. Boles moved, seconded by Ms. Ehrman, that the bill, with unanimous consent of the council, be read the second time by council bill number only, and that enactment be considered at this time. Roll call vote; the motion carried unanimously, 6:0. Council Bill 4322 was read the second time by number only. Mr. Boles moved, seconded by Ms. Ehrman, that the bill be approved and given final passage. Mr. Boles asked about the City's procedure for listing significant violators. In response, Mr. Ollerenshaw said that significant violators are listed on an e MINUTES--Eugene City Council July 8, 1991 Page 8