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MINUTES OF THE ORONO CITY COUNCIL MEETING Monday, October 10, 2011 7:00 o'clock p.m. _____________________________________________________________________________________ Page 7 of 13 (7. #11-3526 3515 CAPITAL PARTNERS, LLC, 1545 MAPLE PLACE, Continued) $6,185.95 in storm water drainage trunk fees with this plat. The applicant proposes to conduct the grading work to create the storage swale on their property at their expense to accommodate the regional storm water levels. The additional off-site work can possibly be performed by the City’s Public Works staff at a reasonable cost to the City. The money to fund this project can be pulled from the Storm Water Fund, which is collected from the storm water drainage trunk fees and the quarterly storm water utility fee. The applicant will grant an easement over the storage swale which could possibly be an extension of the required drainage and utility easements with the plat. It is Staff’s recommendation that the City maintain the storage swale which would entail mowing two to three times per year, inspections for sediment levels and sediment removal as necessary, possibly every five years. Requiring installation of signage to demark the easement boundary is also a consideration. The applicants have not yet submitted a permit application to the MCWD. Staff has requested the applicant contact the MCWD to determine what requirements, if any, they will place on this plat, because it is unclear whether their requirements will change the grading plan. Based on Staff's understanding of their rules, there is a potential the MCWD may require storm water management practices or facilities which could cause changes to this currently proposed grading and site plan. For this reason Staff is not comfortable in granting preliminary plat approval until it can be confirmed that any MCWD requirements will not change this plan. Basement types may be limited due to the proximity of the water table. The applicant is proposing to establish building pad elevations with the plat. This would allow homes to be constructed on the sites using the newly established grade as "existing" grade for purposes of building height calculation. Their plan reflects look-out basements resulting in first floor elevations approximately five to nine feet above the road. Additionally, these elevations appear to create driveways which approach 10 percent grades. The applicant is amendable to working with the City toward a solution to the storm water issues. In addition to MCWD approval, the current plans may require slight modification to achieve the desired results. Staff recommends approval of the preliminary plat based on the recommendations in the state statute regarding lot area and width, contingent on reaching a mutually beneficial resolution to the storm water issues. Rahn asked if there are no new requirements by the MCWD whether Staff is okay with the application. Curtis indicated Staff does have some minimal changes to the grading plan and that the applicant has indicated he is amenable to working with Staff. McMillan asked how much fill would need to be brought in for the building pads. Curtis indicated she is not sure at this time how much fill would be required. McMillan asked how deep the storm water ponds would be. Curtis indicated they would be grassy swales and the majority of the time they would be dry. Item #03 - CC Agenda - 10/24/2011 Approval of Council Minutes 10/10/2011 [Page 7 of 13]