01-13-2009 Council Work Session Packet

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Cify oi Orono Page 4 Surface Water Management Plon Jc�nuary 8, 2009 Proposed Compensation We propase a fee of$18,400 for the work described above, Miscelfaneous expenses would be billed as encountered and are estimated at$500. The propased fee includes printing reports as described above. ff - additional reparts are desired, we would gladly print these for the City on a time and materiais basis. We could provide a cost quate for additional reports if requested. Hourly 1'ask: Deveiopment of a Phasphorus Reduction Plan As required by Minnehaha Creek Watershed District, Orana must develop a plan to reduce phosphorus in its surface water discharge by 230 Ibslyr over the 10-year span covered by the updated SWMP. This effort entails identifying potential projects and development cantrols and quantifying their benefit toward phosphorus reduction, We will also review projects since 2000 and apply phosphorus reduction obtained from these to the 236 pound target identified by the watershed. On January 7, 2009 we met with Minnehaha Creek Watershed District t�discuss the outline of the _ phosphorus reduction plan. We determined that Orono's best tourse of action entails a collaborative and - iterative pracess with the watershed. As we discussed, Orono will develop its initial draft through the - combined efforts of Orono and Bonestroo staff. Subsequent revision to that draft due to watershed comments may also involve the combined efforts of Orono and Bonestroo staff. The Phosphorus Reductian Plan will be a separate section of the SWMP but will be integrated with other applicable sections including the Assessment, Goals and Policies, and Implementation Sections. We propose that the Phosphorus Reduction Plan rely on modeling already completed by the watershed and not on new modeling performed by Orono. The level of effort needed to prepare a Phosphorus Reduction Pfan is somewhat uncertain. This consideration and the fact that City and Watershed staff resources will be used, ieads us to recommend � hourly compensation for this specific work item. Potential Supplemental Services As we discussed at our meeting, Orono might benefit by having a cohesive and single source of stormwater design guidance. A level one tlesign guide takes the form of a several page document outlining: 1, Submittal requirements 2, Design requirements for stormwater infrastructure 3. Performance measures(volume,water quality, and rate control}and how these are evaluated The design guide complements the SWMP by praviding more detail on specific elements of the stormwater system and by outlining how different parts of the system are analyzed, A level two design guide adds more introductary discuss+an on design and modeling theory—further cementing a consistent approach to design and analysis within Orono`s stormwater systern. We have an example of a level one and level two design guide that we could provide for your review. We could prepare Orono's design guidance for the follawing compensation: • Level 1: $2,540 • Level Z; $3,600