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GRASS LAKE WATER MANAGEMENT ORGANIZATION -OCTOBER 16, 2008 5 D-3 Lake Owasso Study Update Scott Sobiech, Barr Engineering, reported that 2008 has been a drier year than 2007. A one-inch rainfall does not show any corresponding rise in the lake level because it has so much storage volume. The monitoring stations are not showing discharge into the lake. The County Road C station has had only one event since July. The collected water quality samples are expected back from the St. Paul laboratory within two weeks, when the surface water model will be recalibrated with infill and flow volumes determined. This information will be used as a tool to determine BMPs. The goals are to control curly leaf pond weed and to control the release of phosphorous. Stark noted that the water quality is poorer than the level shown that would require action. Sobiech stated that the total amount of phosphorous in 2007 and 2008 is below the action level. However, blue green algae can be toxic to animals and bloom this year has been greater than other years. Mogg requested that treatment dates be included on the report graphs. Sobiech stated that he expects draft results to be done in January. There will be a comment period and then a final report issued. Mogg requested that data not be released before it is presented to the Board. D-4 2007 City/WMO Report Card Maloney stated that the forms need to be revised to include items required by NPDES. Otherwise, there are no significant changes. Stark stated that he wants to be sure that the Comprehensive Plans of Shoreview and Roseville reflect items that need to be done in the GLWMO Plan. It was the consensus of the Board to review the report cards in detail at the next workshop meeting. E Other Items: E-1 Conference: Aichinger noted the Annual Water Resources Conference at the end of October at the River Center. It will cover local watershed monitoring and how state agencies can be of assistance. Scott Sobiech and Cliff Aichinger will be speakers. Members are urged to attend. E-2 Board Member Terms: Maloney stated that at the end of 2008, Roseville will have two seats on the Board with one seat expiring. Shoreview will pick up one seat. An appointment will be made at the first City Council meeting in January.