2001-08-23_AgendaPacket - Laserfiche WebLink

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Permit 01-19: 2001 Oakdale Street Improvements Motion: Paul Ellefson moved, Bob Johnson seconded, to approve Permit #O1-19. Motion carried. Brad Lindeman stated that two of the permits considered at this meeting (#O1-13 and #O1-14) include a special provision to address the potential flow capacity problems created by increased flow to the Beltline system, which is already at its maximum capacity. At this time, there is no District policy to support a requirement that applicants must obtain District approval of their storm sewer design computations in an effort to avoid overtaxing the system. Cliff Aichinger stated that a Board resolution would enable staff to establish and enforce the policy, and a Watershed Management Plan revision would be appropriate. Discussion was held on the effort involved to conduct a feasibility study to justify this policy. As an example, Cliff cited the Hoyt-Montana Flood Remediation Plan, which included engineering costs of $80,000. Barr created the Beltline hydrological model, starting with the City of "°~ St. Paul's existing data. Since it is a major conveyance system, Board members instructed staff to collect more information from the engineers at Barr who developed the Beltline model. Staff will provide a risk analysis and recommendations on the range of possibilities and options available to the Board before they adopt a blanket policy. 5. PRESENTATION ON 2000 BIOMONITORING RESULTS Last year's biomonitoring results were presented by Bill Bartodziej. Plant and invertebrate sampling took place on 16 sites throughout the District, which. resulted in the identification of over 160 invertebrate taxa and over 140 plant taxa. A five-year rotation will be required in order to collect samples from all District. wetlands. Surprisingly, analysis of the data from the first 16 wetlands did not find a direct correlation. between impervious surface runoff and the wetland quality ratings. Cliff added that the data will assist staff in updating the District's wetland category rankings. The scientific data for each wetland is being formatted into a report (Wetland Health Chart). Bill listed the following uses for the biomonitoring information: • Incorporate into decision making/policy/project design/function • Provide data to cities • Evaluate CIB stormwater ponding projects • Educational information • Better understanding of effects of human activities and why certain wetlands are more resilient Plans for 2001 include: • Gather sampling data on 16 more wetlands throughout the District • Share 2000 data with cities and get health charts on wetlands • Formalize a data management system • Prepare a detailed methods report • Complete amulti-variate analysis (as opposed to IBI analysis done already) • Publish paper in professional journal • Compare index results with function and values assessment rankings The Board encouraged staff to develop a research budget for the 2002 program that focuses on identifying the variables that are the key to quality wetlands. 6. PROJECT STATUS REPORTS Kohlman Basin Discussion was held on the response received from Park Construction regarding the District's request to renegotiate the unit price for embankment fill, in which they offered to reduce the unit price by $1.50. The Board agreed with the Administrator that the full amount due Park Construction for Payment Application No. 14 should be paid out of contingency funds. The balance owed on Payment Application No. 14 will be reprocessed for payment next month. Page 2 May 2, 2001 RWMWD Minutes