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Evironmental Board <br />March 30, 2016 <br />Page 2 <br />Ms. Thompson from WSB & Associates presented an update from the February <br />meeting. The NE Area Drainage feasibility study models the drainage for 1400 <br />acres of land on the east and west side of I -35E, and north of Main Street. The <br />draft feasibility study was completed in January 2016 and submitted to City staff for <br />review. After review, an additional option was requested to be considered. The new <br />option includes an open -channel greenway between Peltier Lake and 201h Ave. The <br />meandering channel will be used so it doesn't look like a drainage ditch and it would <br />have a 60' to a 100' top width and a 10' bottom width. <br />Total phosphorus concentrations were provided by RCWD for use in the permit <br />application. Mr. Heiskary also provided some additional concentrations for <br />evaluation. Don't want to over treat or under treat the site for concentrations. <br />Ms. Bor asked if the landowners are aware of the project and if they have been <br />notified <br />Ms. Thompson said they have been notified and they are aware of the study. And <br />when the concept is closer to be finalized the effected landowners will be brought in <br />for a discussion of the plan. <br />Ms. Kaufenberg asked how will you go forward and figure out which phosphorus <br />concentrations numbers to use in the loading calculations since there is a variety of <br />numbers in this report.,,��Q, <br />Ms. Thompson said they will be reaching out to the RCWS and MPCA and also <br />using numbers from other studies that have been done in the area. <br />Mr. Sullivan asked will the Environmental Board be able to see the revised study <br />before it goes to Council. <br />Ms. Thompson said yes the board will be seeing the revised study before it goes to <br />Council. <br />Ms. Klebba asked who would be maintaining of the meandering channel. <br />Ms. Thompson the City would be in charge of maintaining of the waterway. <br />Plantings would be grasses and no trees. <br />Ms. Bor voiced her concern into the current drainage that occurs into Peltier Lake. <br />As of now the water does run over the city road. <br />Ms. Thompson said that RCWS will look at the study after there is a finalized plan. <br />APPROVED MINUTES <br />