5.2. PCSR 08-24-2004 - Laserfiche WebLink

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TEP Minutes — June 8, 2004 Attending: Brad Wozney, BWSR; Paul Diedrich, DNR-Fisheries; Yvonne Berner, ACOE; Terry Mauer, City Engineer; Roger Schmidt & Glen Johnson, Schmidt Gravel Mine; Jon Blaha and Warren Tuel, Liesch Assoc, Inc; Wayne Jacobson, Applied Environmental Services; Jason Bebeau & Michelle Christensen, J & B Mining; Donald Wester, Bill Saaranen, Duane Betker, Dean Mealhouse, Trout Brook Farms; Rebecca Haug and Steve Rohlf, City of Elk River Schuer Gravel Mine Leisch Assoc, Inc installed three monitoring wells and took soil borings. The information collected supports their earlier opinion that the wetlands at the site are supported by a shallow water table and not due to perched conditions. However, Bill Bronder is unsure if they have enough information to make that determination. It was discussed that the letter of credit guarantees that the wetland is supported by a shallow water table and not perched. If the plan doesn't work, the City will require them to fix it. Some of the additional wetland credits that this mine will have will be given to J & B Mining. Yvonne Berner explained that the ACOE may not accept these credits since they do not approve deep water habitats. It was discussed that there would be no dewatering at the site. The CUP for will need to be written in such a way to make sure the water levels are working. Monthly data for the monitoring wells will need to be provided to the City for the first year and quarterly data for the monitoring wells will need to be provided to the City for the second year. There may be a potential for bounce. Benchmarks will need to be established so a person can take elevations. GRO and DRO will need to be addressed. The wetland mitigation will be accomplished by removing the gravel deposits to a depth of 15 to 16 feet. Then fill will be brought back in up to grade in the Type 5 area, and 1 ft below the grade in the Type 3 area. Muck will be used to line the Type 3 area in preparation for planting. The second mitigation will be completed by removing the top 0.5 ft of existing reed canary grass and then replanting with natives. The slopes will be no greater than 5:1. A buffer area will be created averaging 25 ft in width. The Type 2 replacement is the only area that credit is wanted for. BWSR and ACOE are unsure they will be able to accept the credits because it is connected to deep water habitat. The TEP is satisfied with the wetland application for this project. J & B Mining Yvonne Berner emphasized to the applicant the importance of keeping their impacts under 2 acres. Also, the setbacks on the north, east and south sides for the mine will need to be changed. The setback adjoining the Schmidt mine may be already but the others will have to be 50 ft back. The setback changes will