1998-10-22_AgendaPacket - Laserfiche WebLink

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6 • PROJECT STATUS REPORTS Kohlman Basin Pat Conrad provided an explanation of the stormwater quality monitoring activities occurring prior to the start of Phase I. As the project progresses and upon final completion, monitoring will continue in the Highway 61- area to determine overall effectiveness. McKnight Basin Sediment Removal The Board learned that the contractor's equipment became stuck in the sediment removal area as work was to begin. Cliff Aichinger stated that it would be undesirable to have an equipment pad prepared in this area; and since there is no urgency from a project operations, safety, or water quality standpoint, staff is recommending extension of the contract to allow work during the winter. The contractor has also requested modification to the insurance requirements. Motion: Paul Ellefson moved, seconded by Bob Johnson, to approve the following items relative to the McKnight Basin Sediment Removal Project: (1) Contract Document Modification affecting insurance coverage limits, and (2) Change Order No. 1 to extend contract time. The was motion carried. Tanners Lake Phase II -Alum Treatment Facility O & M Cliff Aichinger mentioned that the alum mixer is on loan from the alum supplier, Hawkins Chemical. Alum floccing activity has increased, and the final stop log was added to the outlet weir to increase stormwater detention time in the pond. Additional data has been collected and will be evaluated next week. Hawkins Chemical has stated that in 90% of the cases where a facility is not getting proper phosphorus removal, it can be attributed to the mixing effectiveness, and it is best to design a mixer for the structure involved. Cliff estimates $8,000 to design., manufacture, and install a mixer. Phase II expenditures recently reported to MPCA indicate that we are under budget by almost $62,000. However, the construction portion of the project is complete, and this cost would have to come out the portion earmarked for maintenance activities. If the purchase of a mixer doesn't correct the probeem, the next step would be to install an aerator in the pond. MPCA knows that we are taking steps to comply with the annual standard levels required under the terms of the five-year permit. 1~lotion: Paul Ellefson moved, seconded by Bob Johnson, to authorize up to $8,000 for the purchase of a mixer for the alum treatment facility, and this purchase is contingent upon the results of the data that has yet to be analyzed. The motion was carried. Louise Watson discussed the status of education program elements that are required under the terms of the MPCA Clean Water Partnership loan. The results of apre-project public survey were used to identify needs and problems, and the activities described in the Board packet are intended to address those issues. Also, city and county Iawn maintenance crews have been sent materials that encourage best management practices. She has received immediate and positive response from the cities of White Bear Lake, Maplewood, Landfall, and Oakdale on the value of these materials. Jack Frost requested that Louise send similar information to schools as well, based on the large amount of lawns that they maintain. Cliff Aichinger discussed a related issue in which staff is considering adistrict-wide mailing every year or two. He would like the Board to consider this as an additional budget item, estimated at $10,000 to print and mail bulk rate to 50,000 households in the District. He also mentioned the Met Council's funding of a metro-wide media campaign on water quality that is kicking off this week, addressing fall fertilizer applications and other lawn practices. Louise also discussed efforts to encourage key stores in the District and neighboring areas to stock phosphorus-free fertilizer in order to accommodate customer response to the information provided in District newsletters. Paoe 3 September 2, 1998 RWMWD Minutes