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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 /> 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 /> 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 /> Schoenzeit asked if those are in the conservation areas. <br /> Hiller stated some of them are in the conservation areas. <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 /> Schoenzeit asked if these are multi-hundred year capacities. <br /> Nash stated they are required to meet a 100-year flood event. <br /> Leskinen asked if homeowners would be required to submit a grading plan along with their building <br /> permit. <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 /> 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 /> 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 /> Thiesse asked if they would chase it or break them. <br /> Page 12 of 28 <br />