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MINUTES OF THE <br />ORONO PLANNING COMMISSION MEETING <br />Monday, October 20, 2014 <br />6:30 o’clock p.m. <br />_____________________________________________________________________________________ <br />  <br />Page 12 of 28  <br />  <br />Schoenzeit asked if there are any water management or storm water ponds that the homeowners can be <br />expected to use. Schoenzeit stated if there is not, people might be back here with neighbor versus <br />neighbor. Schoenzeit stated in his view there needs to be built in resources for the individual <br />homeowners to take advantage of. <br /> <br />Hiller stated there are stormwater ponds located on the site. Hiller stated the basic idea is that the <br />stormwater will drain into the conservation areas and the prairie grasses will catch a lot of the water and <br />act as a filtration. In addition, there are several smaller filtration ponds in the ditches and the water will be <br />funneled into the filtration sites before leaving the site. <br /> <br />Schoenzeit asked if those are in the conservation areas. <br /> <br />Hiller stated some of them are in the conservation areas. <br /> <br />Dave Nash stated all of the storm drainage areas are located in the outlots for the public roads, which will <br />be part of the drainage for the entire site. The majority of the sites will drain into filtration basins within <br />the swales and ditches. Nash stated the runoff that goes to the back of the lots will be protected by the <br />conservation easement. <br /> <br />Schoenzeit asked if these are multi-hundred year capacities. <br /> <br />Nash stated they are required to meet a 100-year flood event. <br /> <br />Leskinen asked if homeowners would be required to submit a grading plan along with their building <br />permit. <br /> <br />Gaffron noted these lots are two acre lots and that in the past where the City has had problems is on the <br />smaller lots. Gaffron stated every new house that gets built will need to provide a grading plan to make <br />sure it does not have an impact on neighboring properties. Gaffron stated to a great extent the proposed <br />plan has many homes on sites where the water will drain naturally and that he does not believe there will <br />be issues with individual homes affecting the neighboring property, but that it will be looked at with <br />every lot. <br /> <br />Martini stated as this development is put together, the existing drainage patterns will be maintained. <br />Martini noted whenever you are dealing with a site this big, there will be different drainage areas that go <br />different directions, and from a rules and process standpoint, you would look at the facilities on site to <br />maintain existing flows. Martini indicated treatment components will be incorporated into the project and <br />that Staff will ensure those areas are maintained as well as the overall integrity of the drainage. <br /> <br />Nash stated they are not aware of where all the drain tile is located on the site, but that if any drain tile is <br />encountered during grading, the work will be stopped and the drain tile will be dealt with. Nash stated <br />they will attempt to locate what they can during construction and that they will address that with the <br />contractor during the construction process. <br /> <br />Thiesse asked if they would chase it or break them. <br /> <br />Item #01 - PC Agenda - 11/17/2014 <br />Approval of Planning Commission Minutes 10/20/2014 <br />[Page 12 of 28]