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ment over 3,000 square feet. Ms. Bettman pointed out that the threat was in single-family homes in the <br />South Hills area of Eugene. <br /> <br />Mr. Papé? stated that an air shed was difficult to gage; whereas, the stormwater drainage could be gauged <br />and therefore controlled. He asked if there were measurements for outflow at certain points in the area to <br />ascertain improvement of the quality of substreams over time. Ms. Keppler responded that such measure- <br />ments were part of the MPDS permit. Ms. Walch added that staff would provide a report within two weeks <br />on water quality as requested by Mr. Papé? at a previous work session. She said that regular monitoring did <br />ensue as part of a requirement of the National Pollutant Discharge Elimination System (NPDES) permit, <br />both in the Willamette River and the Amazon Creek. Ms. Walch added that monitoring did occur at <br />subcreeks on an as-needed basis only and that the routine monitoring was appropriate and representative. <br />Ms. Walch revealed that the permit application renewal was due in 2008. <br /> <br />Mr. Papé? referred “pervious concrete” and asked if that? component was being pushed where appropriate. <br />Ms. Keppler responded that pervious concrete and asphalt were reduction techniques available to the <br />developer. In response to another question from Mr. Papé?, Ms. Keppler replied that staff was reviewing <br />incentives through SDC and user fees to encourage people to implement above-and-beyond standards. Mr. <br />Papé? opined that all the standards should be integrated; additionally, encouragement to developers and <br />homeowners to upgrade appropriately should be given. Ms. Keppler stated that additional information <br />would be provided at the public hearing as part of the staff presentation on this issue. She said that as the <br />code was currently written, the developer could pick and choose any one technique over another. Ms. <br />Keppler explained that as one works through the simplified method for providing treatment facilities, the <br />first step staff reviewed was the entire pervious area and would remove all the area of pervious pavements. <br /> <br />In response to a question from Mr. Papé?, City Manager Taylor replied that staff was not currently looking at <br />integration over several departments with regard to stormwater standards for building and development. <br />Mr. Papé? suggested that?? an integrated approach would be a prudent step. City Attorney Klein remarked that <br />another element of the Stormwater Program was the Water Quality Protected Waterways which would be <br />presented to the City Council later in the year. He said that it was a Public Works project but PUD was <br />involved to ensure that any and all opportunities were taken into account and that a collaborative effort <br />moves forward. Ms. Keppler added there was an option in the manual for harvesting and using rainwater <br />and that the Public Works Department was working in unison with the Planning and Building Department to <br />ensure a connection between the two departments. <br /> <br />Mr. Kelly concurred with Mr. Papé’s suggestion to work in a collaborative manner across departments. He <br />expressed surprise that single-family homes and duplexes were exempt from the standards unless they were <br />part of a new PUD or subdivision. Mr. Kelly said there would be many “one-at-a-time” house constructions <br />in the future and asked for an explanation of why that exemption was included in the draft ordinance. <br />Additionally, he questioned the exemption of lots in the existing PUDs. He spoke to the largest PUD in the <br />city, East Ridge in Laurel Hill Valley, which includes about 200 lots of record that were not yet built and all <br />of which were above 500 feet. Mr. Kelly said to exempt all that development from the regulations was a <br />concern. <br /> <br />Mr. Kelly turned to the Flood Control Design and the Storm and Water Quality Design standards. He asked <br />if they were related to five-year and 10-year storm events. Ms. Keppler replied that the flood control events <br />were anywhere from five- to 25-year storm events and staff measures the level of risk on a certain facility. <br />She said that a local street, less than 40 acres, was a five-year storm event; an arterial street was a 10-year <br />storm event and consistent with current practices for designing for destination. With regard to the storm and <br /> <br /> <br />MINUTES—Eugene City Council March 13, 2006 Page 10 <br /> Work Session <br /> <br />